PROCEEDINGS The Academy of Natural Sciences PHILADELPHIA VOLUME LXV 1913 philadelphia : The Academy of Naiural Sciences LOGAN SQUARE 1914 The Academy of Natural Sciences of Philadelphia. February 4, 1914. I liereby certify that pi-inted copies of the PROCEEDiNcis for 191:^ were mailed as follows: — Pages 1-80 81-112 " 113-150 " 151-182 " 183-214 ■ " 215-262 " 263-390 " 391-408 " 407-486 " 487-504 " 505-552 November 19, 1913. " 553-568 , November 22, 1913. " 569-616 December 17, 1913. " 617-712 January 28, 1914. EDWARD J. NOLAN. Recording Secretary. .April 4, 1913. April 23, 1913. April 30, 1913, June 4, 1913, June 14, 1913 July 1, 1913. July 15, 1913. July 24, 1913. August 13, 1913. August 19, 1913. PUBLICATION committee: Henry Skinner, M.D., Sc.D., Wither Stone, A.M., Sc.D., Henry A. Pilsbry, Sc.D., William J. Fox, Edward J. Nolan, M.D. The President, Samuel Gibson Dixon, M.D., LL.D., ex-ojficiu. EDITOR: Edward J. Nolan, M.D. 7 / ri" CONTENTS. Fuv Aruujuncements, Reports, etc., .see General Index. Baker, Fred. The land and fresh-water mollusks of the Stanford Expedition to Brazil (Plates XXI-XXVH) 618 Banks, Nathan. Notes on the types of some American spiders in European collections (Plates XI, XII, XIII) 177 Notes on some Costa Rican Arachnida (Plates XXVIII- XXX) : 676 Barbour, Thomas. Reptiles collected by the Yale Peruvian Expedition of 1912 (Plate XVII) 505 Berry, S. Stillman. Notes on some West American • ceph- alopods 73 Bilgram, Hugo. The critical point of liquids 582 Boyer, Charles S. On diatoms of Philadelphia 581 Brown, Amos P., Ph.D. Variation in two species of Lucidella from Mexico (Plate I) 3 Notes on the geology of the Island of Antigua (Plates XVIII, XIX, XX) 584 Brown, Amos P., and Henry A. Pilsbry. Two collections of Pleistocene fossils from the Isthmus of Panama 493 Calvert, Philip P., Ph.D. The fossil Odonate Phenacolestes, with a discussion on the venation of the legion Poda- grion Selys (Plate XIV) 225 Campion, Herbert. The antenodal reticulation of the wings of Agrionine dragonflies 220 Cockerell, T. D. a.. Some Australian bees 28 Dall, William Healey. New species of the genus Mohnia from the North Pacific 501 Fowler, Henry W. Notes on Catostomoid fishes 45 Notes on the fishes of the Chincoteague region in Virginia . 61 Some type specimens of the American Cyprinoid fishes of the genus Rutilus 66 Amphibians and reptiles from Ecuador, Venezuela, and Yucatan (Plates V-X) 153 Fishes from the Madeira River 517 Curimatus spilurus Cope, a wrongly identified Characin 673 CONTENTS PAGE Heath, Harold. The anatomy of two Brazilian land shells, Anostoma depressum and Tomigerus clausus (Plate XXXI) '. 688 Hebard, Morgan. A revision of the ' species of the geniis Nemobius (Orthoptera: Gryllidse) found in North America north of the Isthmus of Panama 394 Palmer, T. Chalkley. The collecting and preparation of diatoms 580 PiLSBRY, Henry A., Sc.D. Notes on some Lower Californian Helices (Plates XV, XVI) 380 Reiin, James A. G. Descriptions and records of South American Orthoptera, with the description of a new subspecies from Clarion Island 82 A contribution to the knowledge of the Orthoptera of Argentina 273 Stone, Witmer. On a collection of birds obtained by the Francis E. Bond Expedition in the Orinoco Delta and Paria Peninsula, Venezuela 189 Thompson, J. C, M.D. Oxyrhopus trigeminus Dumeril and Bibron the type of Erythroxyrhopus gen. nov. 78 Notes on serpents in the family Colubridse 213 Contributions to the synonymy of serpents of the family Lapida? 508 Vanatta, E. G. Descriptions of new species of marine shells (Plate II) 22 Weidman, Fred D. A study of metazoan parasites found in the Philadelphia Zoological Garden (Plate IV) 126 Wherry, Edgar T., Ph.D. North border relations of the Triassic in Pennsylvania (Plate III) 114 PROCEEDINGS OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA. 1913. January 21. Mr. Charles Morris in the Chair. Thirty-seven persons present. The Publication Committee reported that papers under the following titles had been presented for publication in the Pro- ceedings : "The distribution of the genus Cyclops in the vicinity of Haver- ford, Pennsylvania," by R. A. Spaeth (December 19, 1912). "Further notes on the flora of the Conowingo Barrens of south- eastern Pennsj-lvania," by Francis W. Pennell (December 27, 1912; published in the Proceedings, December, 1912). "Oxyrhopus trigeminus Dum. et Bibr. the type of Erythro- oxyrhopus gen. nov.," by T. C. Thompson, M.D., U. S. N. (January 2). "Variation in two species of Lucidella from Jamaica," by Amos P. Brown (January 6). The death of Dr. George A. Koenig, a member, January 14, was announced. The Council reported the appointment of the following Standing Committees to serve during the year: Finance.— John Cadwalader, A.M., Edwin S. Dixon, Eflingham B. Morris, James D. Winsor, and the Treasurer. 1 2 PROCEEDINGS OF THE ACADEMY OF [Jan., Library.— Thomas H. Fenton, M.D., Thomas Biddle, M.D., George Vaux, Jr., Henry Tucker, M.D., and Frank J. Keeley. Publications.— Henry Skinner, M.D., Witmer Stone, A.M., Henry A. Pilsbry, Sc.D., William J. Fox, Edward J. Nolan, M.D. Instruction and Lectures. — Henry A. Pilsbry, Sc.D., Charles Morris,. Witmer Stone, A.M., Henry Tucker, M.D., George S. Morris. Mr. Frank J. Keeley was appointed Curator of the William S. Vaux Collections. Mr. Joseph Willcox was appointed Custodian of the Isaac Lea Collection. George Vaux, Jr., was appointed the Solicitor of the Academy. Dr. F. D. Weidman made a report on his studies in the metazoan parasitology of animals in the Philadelphia Zoological Gardens, illustrated by tables, microscopic preparations, and lantern figures. (No abstract.) The thanks of the Academy were voted to Dr. Weidman for his important communication. The following was adopted: Resolved, That the members of the Academy of Natural Sciences of Philadelphia do hereby express to Thomas Biddle, M.D., their appreciation of the valuable additions he has made to the mam- malian collection, especially the skeletons and mounted specimens of anthropoids, constituting as they do the most comprehensive collection in America. The following were elected members: J. Henry Scattergood, Alfred M. Collins, E. Marshall Scull. The following were ordered to be printed: 1913.1 NATURAL SCIENCES OF PHILADELPHIA. VARIATION IN TWO SPECIES OF LUCIDELLA FROM JAMAICA. BY AMOS P. BROWN. The genus Lucidella is best known from species found in the island of Jamaica, from which locahty the first species were figured by Ferrusac^ under the name of Helix aureola. Ferrusac then figures the two common species of Jamaica, which appear to have a general distribution throughout most parts of the island. These species are very plentiful in the interior of the island, particularly in the Mandeville region. They live in the more undisturbed parts along the borders of woods, seeming to prefer situations where there is a certain amount of sun, rather than in the dense woods. Along the roads they are met with inhabiting the stone walls, which are the common fences in this part of the island. When once established in the walls they appear to flourish, even when the woods are cut away from the vicinity of the roads, and where they have plenty of cover and not too much dryness they develop into as large forms as in the more undisturbed regions. Lucidella aureola (Fer.) is probably more generally and widely distributed, but L. granulosa C. B. Adams is more plentiful in the Mandeville country, though both forms are found living together. Along grassy roadsides with low limestone rock exposures and even where the red residual clay from the limestone forms the banks of the road they are found in numbers; in the case of the red clay banks, perhaps L. aureola is somewhat more common, while L. granulosa is found more fre- quently in numbers where the limestone exposures are seen. This habit of living along the borders of woods and in the more open rocky woods is common with both species in the more undisturbed regions where the original forest still exists. These two species have adapted themselves to the conditions brought about by advancing civilization and clearing of the land, and are well established, even in the oldest settled districts, being found in numbers in many places that have been quite stripped of 1 D. de Ferrusac and G. P. Deshayes, Hist. Nat. des Mollusi^ues, Vol. 3, 1820- 1851, PI. 48, 1, three figures oilLucidella aureola (Fer.) and PI. 49A, 1, two figures of L. granulosa C. B. Adams, all figured by Ferrusac under the name of Helix aureola. 4 PROCEEDINGS OF THE ACADEMY OF [Jan., the original forest. But it is to be noted that it is in these places, where the woods have been cleared for a long period of years, that a reduction not in numbers of individuals, but in size may be ob- served. While the evidence is not entirely complete, it seems to point to a reduction in size in those places where the forest has been entirely cleared away and where the animals are now living under conditions of greater dryness than the optimum conditions that obtain in places where the original forest is still more or less undisturbed. The variations treated of in this paper are seen in individuals of these species that are living under the optimum conditions which obtain in the forested sections, as contrasted with those individuals which are found in the dryer, cleared sections. The localities from which these contrasted individuals were obtained are in Manchester Parish, near Mandeville for L. gramdosa; and for L. aureola, the same region as contrasted with the Montego Bay district. Lucidella granulosa is found almost everywhere in the region about Mandeville where the conditions are favorable. It is in this locality much more common than L. aureola, which, however, is found plentifully in this part of Manchester. But L. granulosa was not taken at Montego Bay, while a small form of L. aureola was very plentiful at this station. Perhaps the most typical forms of L. granulosa come from the borders of the undisturbed woods in Manchester Parish near Mandeville, and it seems likely that it was from this region that C. B. Adams first collected the form. From the many colonies in the Mandeville region from which I collected these typical forms of this species the Somerset, Somerset Road, and Benmore woods colonies may be selected as furnishing characteristic examples of the normal form. These localities have been described in a former paper;- it will suffice here to state that they were places where the original forest still exists and optimum conditions for the growth of this species obtain. The small forms that are compared with these typical forms were collected at two stations where the forest had been completely cleared, at least near the roads along which the collecting was done, and were near the Sturridge place, some three miles to the southeast of Mandeville village, and along the Kendal Road,^ one mile to the north of the town. A short description of these stations will be necessary. - Brown, Variation in some Jamaican Species of Pleurodonte, these Proceed- ings, 1911, pp. 124, 128, 129. ^See map of Mandeville region, loc. cil. these Proceedings, 1911, p. 121. 1913.] MATURAL SCIENCES OF PHILADELPHIA. 5 The Sturridge place, about three miles to the southeast of Mandeville, is in the old settled part of the region. Here the original forest has long been cleared, and the country is almost bare of shade trees. A few scattered orange or pimento trees along the roadsides are the only protection from the tropical sun, and the bare fields, while grassy, have an arid look as compared to the dense woods of the original forest. The only cover for the mollusks is in the stone walls, which, as usual, are built along the roads as fences. An old private burying-ground, doubtless belonging to the Sturridge place, had a few trees growing in it which made a little shade and this old cemetery wall was the most favorable place for mollusks that was found at this point. Here and at a few places nearby along the road specimens of L, granulosa were obtained. They were not very plentiful, but were found in fair numbers, and in as great numbers as any other species of mollusk collected at this point. They were quite uniformly small specimens. They inhabited the wall, utilizing its cover, and were collected from the wall and from the ground at its base. The other station where the small form of L. granulosa was taken was on the Kendal Road, one mile north of Mandeville ; along a part of the road through pasture lands where the trees had been cleared back from the road on the more level ground, so that there was but little shade along the road. Here again the Lucidellas were living in the low stone walls which lined the road and were especially abundant in places where the top of the wall was covered with moss or fern. Here the dead shells of this small form of L. granulosa were very plentiful, many in verj^ fresh condition, but, during the dry time when I was collecting, no living individuals were seen moving about. They had apparently come up on the tops of the walls to escape from the rain during wet weather and died there. At this place the only cover for the snails was to be found in the wall itself. This, as in the case of the Sturridge place, must have been very dry except after a shower or during the rather uncertain rainy seasons. This small form of L. granulosa is well established at this station, but only the small individuals were seen, as was the case at the Sturridge place. It is practically a small local race at each locality. While not so plentiful as L. granulosa in the Mandeville region, L. aureola is found almost everywhere that the conditions are favor- able. This species lives on the ground and is found on grassy banks, even where there is no rock. It does not require rock piles or walls 6 PROCEEDINGS OF THE ACADEMY OF [Jan., for cover, evidently grassy pastures offering sufficient cover and food for the species. This probably explains its present wide distribution, as compared with L. granulosa, and its persisting in places where the other species are not now found. It occurred along the borders of the woods in the Somerset region and along the road- sides at almost all places about Mandeville, especially being col- lected along the Lower Santa Cruz Road in considerable numbers. Here it was living on the grassy borders of the road, and was taken from the clay banks in places where, for instance, Cepolis {Hemi- trochus) graminicola was common. Along this Santa Cruz road the forest is mostly cleared, but the L. aureola has sufficient cover in the grass of the pastures which the road passes through. Both here and especially at Somerset, two places selected as furnishing normal forms of the species, the animals are living under what may be termed optimum conditions. Nowhere in the Mandeville region, in fact (except, perhaps near the Sturridge place, where L. aureola was not found), are the fields really arid and, for a form that can live on the ground with only grass for cover, the conditions are perhaps never very unfavorable. A small form of this species is found at Montego Bay, a region where the soil is so thin that the clearing of the forest has resulted in the development of conditions that may be described as arid, at least during the dry part of the year. Mon- tego Bay is one of the oldest settlements in the island, dating back to the Spanish occupation. The original forest has been cleared off all of the more level ground, which has been under cultivation for probably the greater part of a century. Where trees have been planted, they are mostly logwood, which is grown in the pastures; the trees being planted sufficiently far apart to allow the pasture grass plenty of sun. In these logwood plantations, especially if they are on a slope, the soil is very thin and the rock comes near the surface. During the dry season the ground gets very parched and the grass quite brown; in the wet season, from the end of April to the end of November, when showers may occur at any time, the torrential rains almost immediately drain off on the hill slopes, and owing to the porous character of the soil the ground becomes quite dry between the showers. For a great part of the year, except when a rainy week maj- occur in May or November, any mollusks that are ground dwellers must exist under alternating short periods of great moisture and dryness, while during the dry season, from December to April, they must sestivate under the almost arid conditions which obtain. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 7 Lucidella granulosa C. B. Adams. Plate I, figs 1-15. Helix aureola var. Fcr., Nat. Hist, des Mollusques, Vol. 3, 1820-1851, PI. 49A, two figures marked 1. Helicina aureola Gray, Zool. Jour., 1, p. 70, pi. 6, fig. 15. Lucidella aureola var. granulosa C. B. Ad., Cont. Conch., 6, 1850, p. 89. Lucidella undulata Pfr., Malak., Bl. VIII, 1861, p. 171. This, is the species usually labelled L. undulata in collections. It was first figured by Ferrusac along with L. aureola under the name Helicina aureola. The two figures on Ferrusac 's plate 49A numbered 1 represent a form covered with granules which he considered to be a variety of Helix aureola and which is the common species of Lucidella in the Manchester district. C. B. Adams refers to this form as follows: '*A variety of Lucidella aureola is so strongly sculp- tured with granules that it will be convenient to designate the variety with the name of granulosa.^' (Adams, loc. cit.) This was in 1850, and eleven years afterwards, in 1861, Pfeiffer describes this form, referring to Ferrusac's figure above mentioned, under the name of L. undulata. It is by this name of Pfeiffer's that the species is generally known, although the granulosa of Adams ante- dates Pfeiffer's name by eleven years. Inasmuch as C. B. Adams collected in the Mandeville region in Manchester, it is very likely that his granulosa came from this district. In a former paper* it is recorded in the Mandeville region from Benmore, Bloomfield, Sturridge place, Cedar Hill, Lower Santa Cruz Road, ridge near Lincoln, Somerset, Somerset Road, and it was also collected on the Kendal Road north of Mandeville as well as several otner places in this vicinity. Most of the specimens of this species in the A. N. S. P. Collection were taken by me in 1910, but there are three or four trays simply recorded as from ''Jamaica," one of which marked "Swift Collection" is of especial interest. This lot probably came from H. Vendries, of Kingston, and is marked on the collector's label "L, aureola Fer. var. gra7iidosa"; they possess the characters which seem to distinguish this species in a pronounced degree. If these are Vendries specimens they no doubt came from St. Andrews Parish. They may be described as follows: Lucidella granulosa C. B. Ad. (Swift Collecton A. N. S. P.) Plate I, figs 1-3. Shell somewhat convexly conoidal, rather thick, somewhat keeled on the periphery and wrinkled, in the direction of the growth lines, radially from the apex; color reddish-brown, mottled with whitish; of about 6 whorls; sculpture of raised spiral lines or lirae, * Pilsbry and Brown: The Mollusca of Mandeville, Jamaica, and its Environs, Proc. a. N. S. p. ,1910, pp. 510-535; Lucidella undulata Pfr. p. 525. 8 PROCEEDINGS OF THE ACADEMY OF [Jan., covering the entire surface, those above the periphery being swollen at intervals, when crossed by the radial wrinkles or corrugations that follow the growth lines, thus forming both the raised granula- tion and the whitish spots, from the raised lirse becoming whitish where swollen. The swelling of the revolving spirals becomes very pronounced along the periphery, which is thus raised into a series of tubercles, commencing about the beginning of the fourth whorl and continuing to the lip. The swelling of the lirse to form the granulation does not extend far below the periphery, not more than 4 or 5 of the revolving striae being thus affected. The striae continue, however, to the umbihcus, becoming fainter as this is approached. Diam. 7,7, alt. 5.5 mm. The keeled and tuberculated periphery seems to be characteristic of this species, but is not always, as in this Swift Collection lot, carried out to the lip. It is present in the young shells in all cases, which would seem to indicate that the ancestral species must have resembled this one from the Swift Collection. None of the Mande- ville region specimens normally show this tuberculated and keeled periphery in the adult state, at least not entirely up to the lip; but the young all show it. The Somerset Road specimens (Plate I, figs. 6, 10), w^hich perhaps lived under as nearly optimum condi- tions for this species as any collected in the Mandeville region, show this tuberculated and keeled periphery up to nearly the end of the fifth whorl, but the peripheral tul^erculation dies away before the sixth whorl is reached. Young shells from this station have quite a different appearance from the adults. This seems, as above stated, to be the general condition of the species in the Man- chester region, the adult stage has lost the peripheral granulation, but the younger stages show it. And it is perhaps more pronounced in the Somerset specimens than in any of the others, the last whorl being frequently nearly smooth (Plate I, fig. 4, figs. 7-9), on the periphery. An exceptional specimen from Somerset, showing the tuberculated periphery, is figured at 5 on the plate. The tuberculate condition of the periphery extends from the middle of the third whorl (2.5 whorls from the apex) to the middle of the fifth whorl (4.5 whorls from the apex). Thus the last whorl (there are five and one-half to six whorls) is comparatively smooth on the pe- riphery, and, except for the color pattern, the shell at first sight resembles L. aureola. The color pattern itself varies when the peripheral tuberculation disappears; when it is present there is a regular periodicity in the recurrence of the whitish patches which 1913.] NATURAL SCIENCES OF PHILADELPHIA. 9 mark the swelling of the lirae that is the cause of the lighter spots, they run from 16 to 20 to the whorl, and when this periodicity is seen with the whitish spots reaching the periphery, this in turn becomes tuberculated and keeled. This regularity of the markings is characteristic of the younger stages, and as long as it is seen the young shell will be found to be keeled and tuberculated; when it disappears and the color pattern becomes a mottling of the shell, then the periphery is neither keeled nor tuberculated. In the two places, where dwarfed shells were taken, a large number of them have this tuberculated and keeled periphery on the last whorl, although considerably less than half are so ornamented. It is noticeable that the whitish ornamentation, when it is accompanied by the pe- ripheral tuberculation, follows the growth lines, and is then more continuous and stronger. But when it curves towards the mouth of the shell and crosses the growth lines, it tends to break up into branches, rarely reaches the periphery, and practically never causes tuberculation. .When the animals are living under optimum condi- tions, as at the Somerset and Somerset Road stations, this bending forward of the ornamentation across the growth lines becomes characteristic, and the color pattern becomes finer and less regular by the branching of these whitish lines or by their breaking up into dots. And where this finely mottled color pattern is seen, the last whorl is nearly smooth and the periphery is free from tubercles. The tuberculated condition of the periphery is thus a character of the young stages, sometimes continued into the adult stages up to the development of the lip. The appearance of this character in the dwarfed races (Plate I, figs. 11-15) at Kendal Road station and at the Sturridge station is due to what is generally described as ''reversion to an ancestral form"; or it is due to the animals, living under unfavorable conditions as regards shell development and growth, which causes them to mature at an earlier stage than those forms which live under optimum conditions. But while the conditions are unfavorable to growth, they are not unfavorable to reproduction, for these dwarfed forms are very plentiful at the localities where they were taken. An examination of the shells of these Kendal Road and Sturridge forms will show at once from the growi:h lines that they grew with many interruptions, as many as 30 such interruptions being often seen in one shell. Those from Kendal Road station also mature earlier, as they have only five whorls, instead of five and one-half or six, as in forms growing under more favorable conditions. The forms that live in walls, whether 10 PROCEEDINGS OF THE ACADEMY OF [Jan., of this species or any other, where the wall is their only cover, are always subject to such recurring periods of enforced inactivity^ during dry spells and with the long period of the dry season, which may last for several months, during which the sexual organs prob- ably mature. These wall dwellers become active after every shower, and probably aestivate temporarily during the dry spells between showers, so they have many less growing days throughout the year than forms that may move about and feed any day. Each aesti- vation period is marked by a pronounced gro^vth line, and the 30 or more such interruptions mentioned above are thus recorded. If the adult stage is reached by the animal before the shell has passed through the tuberculated-and-keeled periphery stage of shell growth, then the adult, with lip developed, has this tuberculated periphery; if this stage has been passed the last whorl is smooth and not tuber- culated along the periphery. In the Sturridge place forms, where the whorls may reach five and one-half, but few show the tuber- culation of the periphery extending out to the lip. Lucidella aureola (Fer.). Plate I, figs. 16-26. Helix aureola Ferrusac, Nat. Hist, des Mollusques, Vol. 3, 1820-1851, PI. 48, fig. 1 (not. PI. 49A, 1). Helicina {Lucidella) aureola Sow., Thes., Vol. Ill, p. 282, No. 56, figs. 94, 479. Lucidella aureola Swainson, Chemn. ed. nov., PL 5, figs. 20-23. This is the most widely distributed species of Lucidella in the island of Jamaica, but it generally occurs in small numbers at any one station. Specimens of this species were examined that were collected in Portland (Port Antonio), St. Andrews (Stony Hill and Constant Spring), St. Catharine (Natural Bridge, Bog Walk), Man- chester (various points near Mandeville), and St. James (Montego Bay at Orange Hill and Rose Mount) as well as a number of other collections of which the locality was not recorded further than as from "Jamaica." Among these, the race from St. James as found at Orange Hill and Rose Mount is a small, dwarfed form which is differ- ent from any seen elsewhere, and is only matched in size by an occa- sional specimen from the region to the southwest of Mandeville, along the Santa Cruz road. With the exception of this St. James race from the vicinity of Montego Bay, the general description of the species (Plate I, figs. 16-21) is as follows: Shell depressed conoidal, spire somewhat convex, apex mucronate; uniformly colored some shade of chestnut, paler in the young shells; the shell sculptured with fine revolving lirse and the whorls crossed by oblique wrinkles which follow the growth lines in direction. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 11 beginning to appear generally on the second whorl and sometimes continuing to the lip, but dying away towards the periphery, or, if they cross it, not producing a thickening of the hrae at this point. Whorls six or somewhat over (6.3) and rarely less than 5.7. The revolving strise become fainter and are almost obsolete in the umbilicus. The number of these revolving strise varies through the appearance of interstitial lirse between those already existing, which eventually develop to the same size as the others. There are generally about 45 lirse on the last whorl, of which 18 or 20 are above the periphery, they are close and even and are not thick- ened where the oblique wrinkles cross them. The size varies with the locality, ranging from diam. = 10 mm. by alt. = 7.7 mm. (Pfeiffer) to diam. = 5.6 mm. by alt. =4.3 in the smallest specimen taken in the vicinity of Mandeville. This smallest specimen, which came from the Lower Santa Cruz Road about three miles from Mandeville is simply a diminutive reproduction of the largest which was found at Somerset, with somewhat fewer whorls but \vith none of the peripheral granulation observed on some of the Montego Bay specimens (Plate I, figs. 22-26). These latter, which, as stated above, were collected on the Orange Hill and the Rose Mount estates, differ from the typical L. aureola above described in certain specimens. In about one-half of the Orange Hill specimens and about one-third of the Rose Mount specimens an additional sculptural feature is present. The pe- riphery of the last whorl is raised into a series of points or tubercles, by the thickening of one or more of the peripheral lirse where they are crossed by the transverse oblique wrinkles which are present in- all specimens of this species examined. This structure is exactly comparable to the development of the granulate sculpture on L. granulosa which has been described. A careful examination of the young of typical L. aureola from some fifteen localities shows that while the oblique transverse wrinkles are common to all of them, these do not produce any granulation on the periphery, so that this is not, as in the case of the dwarfed races of L. granulosa, a "rever- sion" or the effect of the individual's maturing at what is normally a young stage, but actually a new sculptural character which has developed in these Montego Bay forms. It only appears distinctly on the last whorl, the tubercles becoming stronger after the periphery emerges from the suture, but it may be present on the preceding whorl also, as the corrugations or wrinkles are found well developed on both the last and next to the last whorls. When well developed, 12 PROCEEDINGS OF THE ACADEMY OF [Jail.; the granulations continue out to the Hp ; sometimes they only appear in the middle part of the last whorl and become obsolescent towards the lip. They are well shown and their connection with the trans- verse wrinkles is apparent in the figs. 22, 25, 26, Plate I. This peripheral granulation is thus characteristic of certain of the speci- mens taken at Orange Hill and Rose Alount, Montego Bay, and is not found in the normal L. aureola from any other locality examined. The forms possessing it might be designated by a varietal name, as montegoensis, and it is probably the beginning of a new species, or what would become one if the forms continued to live at the Montego Bay localities, which, unless the settling up of the country continues, is likely to be the case, they having survived the advance of civilization for perhaps a century. But it may be a variation not due directly to the aridity of the country produced by the clearing of the land — not referable to change of environment alone — but to hyhridity, and this might work out in future generations. We thus have two species, each developing a dwarfed race under similar conditions of environment, but in which the causes for the development of the new sculptural characters which accompany the dwarfing are probably not referable to the same causes. The Variation in Size. The amount of the variation in size may be graphically shown by plotting the dimensions of the forms to scale in the manner adopted in a previous paper.^ These dimensions are given below. Variation in size in Lucidella granulosa C. B. Adams. — The forms of this species compared in fig. 1 are from Somerset, Somerset Road, Benmore, Kendal Road one mile north of Mandeville, and the Sturridge place, three miles southeast of Mandeville. Those from Somerset and Somerset Road are the largest, those from Kendal Road and the Sturridge place the smallest. The Benmore specimens lie between these two, but nearer to the larger group, so that the plot shows two groups as to size, with a gap between the two that is not entirely bridged over by the Benmore specimens. The normal forms, represented by the group of larger specimens from these localities, show some variation in the sculpture, but are in general as described above for the forms from Somerset and Somerset Road, with a nearly non-tuberculated periphery on the last whorl. Only * A. P. Brown, Variation in some Jamaican Species of Pleurodonte, Proc. A. N. S. P., 1911, pp. 117-164 figs. 2-14. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 13 a few of the Somerset specimens show the keeled and tuberculated periphery that is characteristic of the Swift Collection specimens, of which a description is given above. These are, however, of normal size for the species, as may be seen from the plate (figs. 4, 5, 7-9). A few individuals from Benmore show this tuberculated periphery also. Contrasted with this smooth condition of the last whorls, which may be considered normal for L. granulosa as found near Mandeville, is the much larger proportion of tuberculated-keeled forms found o - 0 O O X - O o _ 6T»vrv<- O X 9 " • • X 0 - • • • • _5 • ■» ■f + + -e «■ ■? oSome-ree-fc -^ .r x6ome.-rset--roa^. d ; ■*■ Ke-ndal TTDCLdL. " , , , , f , , , 7 , 1 Srrvm, , , , , 1 , , , Fig. 1. -Lucidella granulosa. Comparison of the dimensions of the forms from five different localities. among the specimens from the two localities where the forms are dwarfed. At the Sturridge place, about one-half of the specimens show peripheral granules on the last whorl, though these tend to be- come obsolescent as the lip is approached. In the Kendal Road specimens somewhat over two-thirds show this granulation, and in many cases it extends out to the lip, a much smaller proportion showing this granulation of the peripheral lira becoming obsoles- cent and dying away as the lip is approached than in the case of 14 PROCEEDINGS OF THE ACADEMY OF [Jan., the Sturridge specimens. The reduction in size in L. granulosa in these localities is accompanied by a shght reduction in the size of the embryonic- shell or protoconch, which is easily observed in all cases in the adult shell. The minor diameter of the protoconch averages 0.47 mm. in the specimens from the larger group, the average being for the Benmore specimens 0.444 mm., for the Somerset Road specimens 0.47 mm., and for the Somerset specimens 0.50 mm.; as against an average of 0.416 mm. for the Kendal Road specimens and 0.408 for the Sturridge place forms. There is thus a dwarfing that is not alone individual, but a racial dwarfing. These characters are well shown by a comparison of the dimensions by whorls which is given in fig. 2. A series of characteristic specimens were selected from each locality and each individual measured by whorls with an ^ ' Fig. 2. — Lucidella granulosa. Comparison of width and height by whorls. Sm. = Somerset, S. R. =Somerset Road, B. =Benmore, St. = Sturridge, K. R.= Kendal Road. eyepiece micrometer on the microscope, using of course a mechanical stage to adjust the specimen. The measurements by whorls and the minor diameter of the protoconch are plotted in the figure. This last character hardly shows well at this scale, the differences being small. The comparison by whorls brings out the fact that in spite of the dwarfed character of two of these races, but little reduction in size is shown up to the third whorl and the difference in size only becomes pronounced at the fourth whorl. All of these forms, whether normal or dwarfed, possess at least five whorls, so that up to this point the growth rate is strictly comparable. The marked falling off in size of the two dwarfed races at this point is to be attributed to the environment alone. The still more marked falling off in diameter as shown in the last whorl is partly due to a reduction in the number of whorls in the dwarfed races, this falling from the maximum of somewhat over six whorls in the larger forms from Somerset, Somerset Road, and Benmore to between five and six 1913.] NATURAL SCIENCES OF PHILADELPHIA. 15 for the two dwarfed races from Sturridge's and Kendal Road, although even at these two localities the whorls may reach six in some cases. Variation in size in Lucidella aureola (Fer.). — The forms of this species compared in fig. 3 are from Somerset, Santa Cruz Road and Orange Hill, Montego Bay; and to these has been added a series from the A. N. S. P. old collection labelled simply "Swift Col- lection," and recorded as from "Jamaica" without any definite locality. These divide at once into two groups, of which the Somerset, X ■ " — 7m/m O O " X ^ o " ■ • • o -6 • • o • • • o ■ • ■ • • . • _S • • X-SuTift coU. ■ •h e -Somerset . ' + • Santa. Orxi^ roeid.. + + • ++ + ^.^orute^o^cy. -A- . + — 1 — 1 — , , 1 , , 7 . 1 1 & i , 1 Sr>vm. Fig. 3.— -Lucidella aureola. Comparison of the dimensions of the species from four different localities. Swift Collection, and Santa Cruz Road lots are larger, the Montego Bay lot is smaller. It will be seen, however, that a single specimen from the Santa Cruz Road series approaches the Montego Bay specimens in size, being of less diameter than any of this Orange Hill (Montego Bay) series. The Swift Collection series are all proportionately higher than those from Somerset, which otherwise they compare well with in size. The Santa Cruz specimens lived 16 PROCEEDINGS OF THE ACADEMY OF [Jan. in the open fields and in walls along the roadside, their only cover being the walls or the low vegetation of the fields, and they are all smaller than the Somerset and Swift Collection series. The one exceptionally small specimen was adult, so far as development of the lip was concerned, and in size would correspond to Pfeiffer's variety which he calls L. aureola minor, being even smaller than his dimensions for that form. But while it compares in size with the Montego Bay forms, it is not at all like them in sculpture, resembling the normal L. aureola of the island generally. It is evident, then, that the normal L. aureola may vary in size in occasional individuals down to that of the dwarfed or "runt" race found near Montego Bay. This last race is a composite one, in about one-half of the Orange Hill specimens and one-third of the Rose Mount specimens a distinctive sculpture characterizes the forms. This has already been described above. The minor diameter of the protoconch is also somewhat less than in the normal forms of this species, this dimension varies from 0.55 mm. in the Somerset and Swift Col- Fig. 4. — Lucidella aureola. Comparison of the width and height by whorls from four different locahties. lection specimens to 0.50 mm. in the Santa Cruz Road specimens and 0.45 mm. in those from Montego Bay. A comparison of the dimensions of L. aureola by whorls is given in fig. 4, where these protoconch diameters are plotted along with the heights. It will be seen that the diameters by whorls do not show much variation in the four lots of specimens examined until the third whorl is passed, but a marked falling off in the diameter of the Santa Cruz Road and the Montego Bay specimens commences with the fourth whorl, becomes still more pronounced in the fifth whorl and culminates in the last whorl. As in the case of L. granu- losa, there is a reduction in the number of whorls in the adult stage in the case of the dwarfed Montego Bay forms which accentuates the diminution in diameter after the fifth whorl. The number of whorls is of course larger in the larger specimens from Somerset, the Swift Collection lot and the Santa Cruz Road specimens, being generally over six whorls, whereas the specimens from Montego Bay 1913.] NATURAL SCIENCES OF PHILADELPHIA. 17 range from five to five and three-tenths whorls, and in rare cases one may reach five and one-half whorls. As in the case of L. granu- losa, the reduction in size is accompanied by a reduction in the number of whorls, and the animal matures at an earlier stage of shell develop- ment than is the case in the larger normal forms. The small speci- men from Santa Cruz Road which approximates in size the Montego Bay specimens had only five and three-tenths whorls, as they have, and a few other Santa Cruz Road specimens, which are small, run about five and seven-tenths whorls. The Causes of the Variation in Size and Sculpture. In the case of the variation of the two species herein described it is plain that we have to deal with two different kinds of variation: (1) A reduction in size from the normal type and (2) a change of sculpture. The cause of the change of size is the same in both cases and has already been stated. The reduction in size is undoubt- edly brought about by the drier and more arid environment which retards the growth of the individual; superimposed upon which is the regular periodicity of climatic changes due to the changing seasons, which induces the development of the reproductive organs at a given time in the year, without much regard to the size the in- dividual has attained. Thus the forms living under arid conditions will have onl,y reached the beginning of the sixth whorl (or passed the completion of the fifth whorl) when the enforced aestivation brought on by the dry season commences. During the dry season all of these snails are more or less inactive, and during this resting stage the genitalia are developed. The lip probably commences to develop about the same time. Forms living under optimum conditions have reached the beginning of the seventh whorl when this occurs; they will have an extra whorl as compared with the forms living under arid conditions, which would have had many less feeding and growing days, and which latter, no doubt, have passed through many short periods of aestivation during their period of growth, which was frequently interrupted by the dry spells between showers. Probably from the repeated aestivation periods that these dwarfed forms must pass through, there has been produced an actual decrease in the size of the embryo, as is indicated by the re- duction in the size of the protoconch; and this may mark the fixing of the small race, even though their environment may change; but this dwarfing of the embryo is not needed to explain the reduction in size. 2 18 PROCEEDINGS OF THE ACADEMY OF [Jan., The change of sculpture which accompanies the reduction in size is to be differently explained in the case of each species. In the one case, that of L. granulosa, it has been shown to be directly connected with the reduction in size, which in turn is brought about by the loss of a whorl. The sculpture in this case is that of the young shell up to the beginning of the sixth whorl (up to 5.3 whorls generally), and is a necessary accompaniment of the loss of a whorl. In the case of normal forms in which this sculpture exists, as in the occasional specimens from Somerset or the Swift Collection speci- men of L. granulosa, this sculpture seems to have persisted up to the end of the sixth whorl; and, as pointed out, it may be an ancestral character which is becoming obsolescent. But it has been rejuvenated in these dwarfed forms by the process known as rever- sion. The case of the change of sculpture in the dwarfed forms of L. aureola is different. Here we are not dealing with a character which exists in the young stages and is simply disclosed by the leaving off of a whorl, as in the last case, but with a new character of which no trace is to be found in the young of the normal species. It may be an adaptation in response to the change of environment or it may be due to the effect of hybridity. It is here that the evi- dence is incomplete. It is not known whether the other form that would likely hybridize with L. aureola occurs (or has occurred) at Montego Bay. I mean the species L. granulosa. In a large collection made at Montego Bay in 1910 I did not encounter this species, nor is it found in Henderson's list® as being found at this point. It might be found in some of the deposits of semi-fossil shells that occur near Montego Bay, but while I examined these, I did not find any specimens of L. granulosa. If it existed at Orange Hill and at Rose Mount pre- vious to the clearing of the land it would probably die out, as this species requires more cover than is to be found in the logwood-planted pastures where the Montego Bay race of L. aureola is now living. And during its extinction it might very conceivably have mixed with the L. aureola, which thrives well in grass lands elsewhere in the island. The hybrid thus produced would be likely to have a tuberculated .periphery. And the hybrid living with a normally sculptured, pure race of L. aureola would tend through hybridity to change back to the normal sculpture of this latter species. « J. B. Henderson, Nautilus, VIII, 1894, pp. 1, 19, 31. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 19 On the other hand, the variation may be a response to change of environment, the animals becoming adapted to arid conditions. Of course, this adaptation is evident as regards the reduction in size, but it is not yet known that animals living with deficiency of moisture necessarily become more or differently sculptured. The chief effect of this aridity would be to reduce the moisture of the body, and this may conceivably produce an increase of sculpture. Re- duction of moisture followed by an increase of moisture tends to induce proliferation. This has been noted by Loeb^ in the case of the eggs of the sea urchin. When newly fertilized eggs are placed in hyper- tonic sea water for three or four hours and then brought back into normal sea water, they divide into from six to sixteen cells in about ten minutes, and in some cases even into about forty cells inside of twenty minutes. The reduction of moisture in the egg was here sufficient to inhibit cell division, but not enough to prevent nuclear division. When put back into normal sea water, a most powerful streaming of the protoplasm was observect. This streaming seemed to occur around the chromosomes and fragments of nuclear matter as centres. At length each knob or projection formed by the streaming became a separate cell. The effect of the hypertonic sea water (made by adding salt to normal sea water) was to with- draw water from the cell. Putting the egg back into normal sea water added water to the cell. Estivation must result in with- drawal of water from the protoplasm, and may proceed to the point of gelation. Addition of water to the protoplasm after such aesti- vation, might readily result in proliferation as a result of the irregular nuclear division produced during the aestivation period when cell division could not occur. The irregular thickening of the shell that forms the peripheral tubercles and other increase of sculpture is of the nature of a proliferation of the shell. This is conceivably due to the irregular cell division produced by aestivation, which in turn is preceded by nuclear division without accompanying cell formation during the aestivation period. Normally a cell dividing produces two daughter cells, but under this fluctuation of the water content the number of daughter cells may be from six, eight, etc.; or M = 2D may become M = 4D (or 6D or 8D, etc.). Boveri^ has shown that the conditions which bring about cell division seem to depend upon a ratio between the mass of the chromosomes to the mass of protoplasm being established, and occurs ' Loeb, Jour, of Morphology, Vol. 7, p. 253, 1892. 8 Boveri, Zellen Studien, Heft 5, Jena, 190.5. 20 PROCEEDINGS OF THE ACADEMY OF [Jan., when the ratio chromosomes to protoplasm reaches a certain con- stant. Increase of the mass of the chromosomes retards cell division, which does not occur until the mass of the protoplasm increases also. The material for the growth of the chromosomes is furnished by the protoplasm, from its "reserve material," according to Sachs. So cell growth consists in the transformation of protoplasmic into chromatin material in the nucleus until a definite ratio of P : C = k is reached, when division occurs. The mother cell just before divis- ion consists of nC-j-P = M. After division M divides into 2D each being nC'-r-P'. These daughter cells then grow to the size and ratio of the mother cell, or until nC'-i-P' becomes nC-^P, when division may again occur. Starvation produces a reduction in the amount of protoplasm and retards the development of the chromosomes. ^Estivation will cause reduction in the amount of protoplasm and retard cell division. J. Sachs was the first to point out that in each species the ultimate size of the cell is a constant for each organ and that wfiere two individuals differ in size, the differ- ence is in the number and not the size of corresponding cells. Amelung, a student of Sachs, confirmed this by actual count. But it seems probable that diminution in the amount of protoplasm may be accompanied or followed by a reduction in the mass of the chromosomes and reduction in the size of the nuclei, and as the ratio C-i-P is constant for cell division, then C-j-P = M by reduction of mass of both C and P to C and P' becomes C'-i-P' = M', a smaller cell. It is in this way that the observed reduction in size of the embryonic shell or protoconch in these dwarfed forms of the two species of Lucidella here considered is to be explained. For this reduction in size of the protoconch must accompany a reduction in the size of the egg, and it is probably the establishing of a new equilibrium resulting in the reduction in size of the egg (among other things) that is the explanation of the observation that condi- tions unfavorable to the growth of the animal are not unfavorable to its reproduction. Explanation of Plate I. It i s to be noted that figures 1-6 are enlarged somewhat more than the rest, being magnified 4.5 times, while all the other figures (7-26) are magnified 3.4 times, and these being all on the same scale, the relative sizes may be directly compared. Figs. 7-10 are normal; 11-15 are dwarfed; figs. 16-21 are normal; 22-26 dwarfed. Figs. 1, 2, 3. — Lucidella granulosa C. B. Adams (Swift Collection). Showing the tuberculated and keeled periphery characteristic of the specimens in this lot. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 21 Fig. 4. — Lucidella granulosa C. B. Adams. A form with the last whorl smooth, from Somerset. Fig. 5. — A specimen of the same species from Somerset, which shows the tuberculated keel as in figs. 1-3. Fig. 6. — A specimen of the same species from Somerset Road colony with nearly smooth last whorl, but showing the tuberculation on the earlier whorls. Figs. 7-9. — Three specimens of L. granulosa from Somerset, with smooth last whorl. Figs. 7 and 9 show two common color patterns. Fig. 10. — A specimen of L. granulosa rom Somerset Road, with smooth last whorl. Figs. 11, 12. — Two of the dwarfed forms ot L. granulosa from the Sturridge place. Both show the granulated periphery of the last whorl. Figs. 13-15. — Three of the dwarfed specimens of L. granulosa from the Kendal Road colony. They all show the granulated periphery. Figs. 16-18. — Lucidella aureola (Fer.) from Somerset, showing the rather large, normal form of this species as found at this locality. Figs. 19-21. — Lucidella aureola (Fer.) from the Santa Cruz Road, showing the smaller size of the specimens from this station as compared with those from Somerset. Fig. 22. — Lucidella aureola (Fer.) from Orange Hill, Montego Bay; the form with tuberculate periphery. Figs. 23, 24. — Lucidella aureola (Fer.) from Orange Hill, Montego Bay, the shell seen from above and from the under side. Figs. 25, 26.^ — Lucidella aureola (Fer.) from Orange Hill, Montego Bay, each showing the tuberculate periphery of the form for which the varietal name of Montegoensis is suggested. 22 PROCEEDINGS OF THE ACADEMY OF [Jan., DESCRIPTIONS OF NEW SPECIES OF MARINE SHELLS. BY E. G. VANATTA. Metula amosi n sp. Shell solid: elongate: fusiform: cream-white, with slight indication of a subsutural, a peripheral, and a ^^^de basal bro^Miish spiral band. Spire elevated, conical, vertically costate with spiral strise in the interstices. Suture impressed, irregularly crenulate. Whorls con- vex, 5 remainmg. Body whorl sculptured with 41 vertical costse crossed by 33 raised spiral lines, with a slight tubercle at the point of intersection. The first three spirals below the suture are strongest, the others becoming closer and finer at the periphery and then wider towards the base. There are 12 spirals on the wide, short, slighth' Figs. 1, 2.—Me(ulo omosi Van. recurved anterior canal, not crossed by the vertical costse. Aperture elongate, about one-half the length of the shell. The outer lip is slightly arcuate, thickened externally, internally polished and a little crenu- late, white at the slightly refiexed edge, internally cream-colored with a fllesh-colored band along the outer margin and in the basal third. The parietal wall and columella moderately concave, covered by an adnate smooth callus, cream-colored tinged with flesh-color at the base. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 23 Altitude 40, diam. 13, aperture alt. 22.5, diam. 7 mm. Locality. — Panama. The types are in the collection of The Academy of Natural Sciences, number 107,159, collected by Mr, S. N. Rhoads. This species is wider than the Japanese Metula elongata Dall and has a longer aperture. It differs from Metula gahhi B. and P. in being higher, narrower, more cylindrical, in having the sculpture on the early whorls less compact, base more attenuate, aperture longer, and the columella not so sinuous. I take pleasure in naming this species after Dr. Amos P. Brown, one of the authors of Metula gahhi, the Oligocene species which is probably the ancestor of this form. HaplococWias swifti n. sp. Shell small, umbilicate, turbinate, white, suture deeply im- pressed, spire elevated, whorls 5, very convex, contabulate, the first whorl somewhat eroded, the two following whorls bicarinate, the penultimate and bodj^ whorl more or less tricarinate. The body whorl is sculptured with 24 spaced spiral striae with microscopic P'ig. 3. — Haplocochlias swifti Van. vertical striae in the interstices. The fourth, sixth and eighth striae below the suture on the body whorl are larger than the others and three or four striae near the umbilicus are closer together. The umbilicus is of moderate size. The aperture is orbicular, peristome continuous, very thick, and broadly refiexed, crenate, parietal 24 PROCEEDINGS OF THE ACADEMY OF [Jan., callus thick, columella narrow above and broad at the base, bearing a median groove. Length 3.92, diameter 3.92 mm. Habitat— St. Thomas, W. I.; collected by R. Swift. Type in the collection of The Academy of Natural Sciences of Philadelphia, number 10,292. This species differs from Haplocochlias cijclophoreus Cpr. by having coarser spiral sculpture, by having a more reflexed lip, and by being umbilicate. Vitrinella hemphilli n. sp. PI. II, figs. 1, 3. Shell small, depressed turbinate, hyaline, translucent, polished, with indications of irregular growth striae; spire acute, composed of four convex whorls which are slightly concave below the suture. The aperture is large; peristome acute; parietal wall convex, with a very thin callus; columella concave, very narrow; umbilicus per- spective, bordered by a very indistinct angle. Alt. 1.56, diam. 2.5 mm. Habitat. — Cedar Keys, Florida; collected by H. Hemphill, in whose honor it is named. Types in the collection of the Academy, tray number 10,236. This species has a wider umbilicus than Vitrinella multistriata Ver. and Vitrinella helicoidea Ad., it has a higher spire and more closely coiled whorls than Vitrinella megastoma Ad. and Vitrinella tryoni Bush. Discopsis schumoi n. sp.. PI. II, figs. 2, 7. Shell small, white, moderately polished; spire rather acute, depressed conic; suture impressed; whorls three and one-half, some- what convex, sculptured above with a few irregular growth lines crossed by delicate distinct spiral striae which are strongest below the suture and above the periphery. Peripheral carina very strong; base rather flat, sculptured with about twelve radial very broad costse or undulations, crossed by numerous undulated spiral striae. The umbilicus is large, deep, bounded by a heavy, cord-like, overhanging carina, the walls within the umbilicus are concave and smooth. The aperture is transversely sagittate, receding; peristome reflexed, very obtuse, provided with a great prolongation of the peripheral keel, the lip is arcuate above but flattened at the base and concave below the keel; parietal wall broadly triangular, widest above with a very heavy callus which extends forward on the body whorl beyond the aperture and fills the posterior angle of the mouth; the columella is concave, broadly triangular, narrowest above. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 25 Alt. 1.25, diam. 2.47 mm. Locality. — Monkey River, British Honduras. The types are in the Academy's collection, tray number 76,-581, and were taken from the anchor of a vessel by Silas L. Schumo, in whose honor the species is named. This shell differs from Discopsis omalos De Folin by the radial sculpture on the base and the projection upon the outer lip, and has different basal sculpture from Discopsis costulatum De Folin. It differs from Colonia radiata Dall by having no longitudinal costse upon the spire and having a large umbilicus. Omalaxis funiculus contracta n. var. PI. 11, figs. 4, 6. Shell small, white, somewhat polished; spire flat, bounded by a sharp angle; whorls about three and one-half, sculptured above with about seven or eight engraved spiral lines which become indistinct as they approach the aperture, ten engraved spiral lines are between the edge of the spire and the peripheral keel and eleven between the keel and the umbilicus, these lines and the peripheral carina become obsolete near the aperture. The umbilicus is perspective, funnel shaped, with smooth sides, and surrounded by a sharp carina. The aperture is suborbicular; peristome thick and evenly rounded; basal lip with a triangular callus; columella thick and very oblique; parietal callus ponderous and extending slightly beyond the aperture. Alt. 1.04, diam. 1.85 mm. Habitat. — Monkey River, British Honduras. The type is in the collection of the Academy, tray number 106,125, taken from the anchor of a vessel by Silas L. Schumo. This variety is distinguished from Omalaxis funiculus Dall by having a narrower umbilicus. Teinostoma schumoi n. sp. PI. II, figs. 5, 10. Shell small, imperforate, white, polished, subspherical, very compact, suture impressed, early whorls rather concave in the middle, with the surface more or less undulate, the penultimate whorl with a spiral groove near the outer suture. The body whorl has the upper surface sculptured with a series of longitudinal undulations and a spiral cord at the edge. The face view shows seven widely spaced very heavy spiral cords, the two at the periphery being smallest. The base is imperforate, showing two of the spiral cords near the edge and a series of radial indentations bounded on the lower side by an engraved line. The umbilical region is slightly indented and provided with a few irregular radial growth lines. The aperture 26 PROCEEDINGS OF THE ACADEMY OF [Jan., is suborbicular, receding; outer lip rather acute; parietal wall very thick. The columella is very broad and provided with a ponderous callus. Alt. 1.51, diam. 2.23 mm. Locality. — Porto Barrios and Livingston, Guatemala. The types are in the collection of the Academy, tray number 73,483, and were found in mud collected from the anchor of a vessel at both places. This species differs from Teinostoma solida Smith by having radial sculpture on the base, by having sculpture on the upper surface and has more spiral costse than Teinostoma hondurasensis and is imperforate. Teinostoma hondurasensis n. sp. PI. II, figs. 8, 12. Shell small, polished, blue-white, translucent; spire slightly elevated, broadly conic; suture impressed; whorls four, a little convex, early whorls smooth, with a few indistinct growth striae and a groove following the suture on the penultimate whorl. Body whorl from above rapidly increasing, is smooth, highly polished with a groove near the edge which becomes obsolete towards the aperture. In a face view it shows five spaced subequal spiral cords. The base is umbilicate, with a broad, smooth central area, bounded by a granulate ridge near the parietal wall which becomes a tuber- culate spiral ;?ord and finally a smooth cord at the basal lip. Two other spaced smooth spiral costse are upon the outer part of the base. The aperture is suborbicular, receding; peristome evenly arched, moderately thick, slightly interrupted by the terminations of two costse near the base; basal lip thick; columella provided with a broad triangular callus; parietal wall very thick; umbilicus small. Alt. 1.04, diam. 1.75 mm. Habitat. — Belize and Monkey River, British Honduras. The types are in the Academy's collection, tray number 76,535, found in mud taken from the anchor of a vessel at both places by Silas L. Schumo. This species differs from Teinostoma solida Smith by being white, smaller, umbilicate, and having a different number of spiral cords. It is distinguished from Teinostoma schumoi by being umbilicate and having a different sculpture. Teinostoma bartschi n. sp. PI. II, figs 9, 11. Shell minute, discoidal, blue-white, somewhat translucent near the aperture; whorls three and one-half; suture shallow; spire very low 1913.] NATURAL SCIENCES OF PHILADELPHIA. 27 and evenly arched, smooth except for a few indistinct radial costae on part of the penultimate whorl and a few very indistinct spiral lines near the periphery. The peripheral carina is very large, separated from the costa below by a wide furrow. In the basal view showing four spiral costse, the one below the keel is subgranu- late near the parietal wall, but smooth near the basal lip. The two costse near the umbilicus are narrower, the growth lines are very indistinct. The umbilicus is wide, angular at the edge and separated from the spiral costae by a broad, smooth area. The aperture is orbicular; peristome subacute, thickened at the termina- tions of three of the spiral ribs; columella concave, narrow; parietal callus moderate. Alt. .71, diam. 1.47 mm. Locality. — Porto Barrios and Livingston, Guatemala. Types in the collection of the Academj^, tray number 76,501, found in mud collected from the anchor of a vessel at both towns. This shell differs from Adeorhis beaui Fisch. by having a more depressed spire and unequal spiral costse. It has a wider umbilicus than Teinostoma hondurasensis. Named in honor of Dr. Paul Bartsch, of Washington, D. C. Explanation of Plate II. Figs. 1, 3. — VitrineUa hemphilli. ^ Figs. 2, 7. — Discopsis schu7>ioi. Figs. 4, 6 — Omalaxis fimiculus contrada. Figs. 5, 10. — Teinostoma schumoi. Figs. 8, 12. — Teinostoma hondurasensis. Figs 9, 11. — T iinostoma bartschi. 28 PROCEEDINGS OF THE ACADEMY OF [Jan., SOME AUSTRALIAN BEES. BY T. D. A. COCKERELL. In 1904 there were 222 species of native bees known frora Aus- tralia. At the present moment (January, 1913) there are 583, if we include the species described below and 24 others sent for publication but not actually published at the time of writing. Even this comparatively large number must represent but a small minority of the species actually existing, as many districts have never been examined for bees, and every new collection contains a considerable percentage of undescribed forms. The best-explored district is the region about Mackay, Queensland, which was for many years the hunting ground of Rowland and Gilbert Turner. The vicinity of Sydney has furnished a large number of species; many also come from Melbourne and the region round about. Mr. S. W. Fulton has recently collected a most remarkable series of minute bees at Purnong and Croydon, all new. These belong to Prosopid genera, but simulate our American species of Perdita, and probably have similar flower-visiting habits. One (Euryglossina sulphurella Ckll.) is light yellow like certain of our Perdita species, and presum- ably visits some flower of that color; possibly, in Australia, it would be some Mimosa-like plant. Australia (including Tasmania) is known to have 47 genera of bees. This number would be increased if we added some of the recent segregates, proposed principally by Perkins. The genera Euprosopis and Gnathoprosopis of Perkins seem distinct in their typical members, and I have described species under them; but a perfectly satisfactory dismemberment of Australian Prosopis is hardly possible as yet. It cannot be doubted that eventually both Prosopis and Euryglossa, as represented in Australia, will be divided to form additional new genera. The Australian genera may be grouped as follows, the number of species being given in each case: (1) Endemic (Precinctive) genera: BinghamieUa (1), Parasphecodes (34), Pachyprosopis (12), Stilpnosoma (1), Meroglossa (15), Callomelitta (2), Trichocolletes (1), Goniocolletes (1), Cladocer- apis (1), Andrenopsis (1), Phenacolletes (1), Anthoglossa (4), 1913.] NATURAL SCIENCES OF PHILADELPHIA. 29 Turnerella (2), Eunjglossa (57), Euryglossina (8), Euryglos- sella (1), Euryglossidia (2), Heterapis (3), Hylceoides (4), Neopasiphae (1), Stenotritus (2), Mellitidia (1), Gastropsis (2), Melittosmithia (2), Neoceratina (1), Exoneura (10)/ Le.s^. Australia (Waterhouse; Nat. Mus. Vict. 149). Prosopis proxima Smith, var. a. A female from Purnong, S. Australia {S. W. Fulton; Nat. Mus. Vict. 148) differs a little from the type in having the lateral face- marks white without any trace of yellow, and the hind tibia? with a dull white mark at base. The tubercles have the apical half white, and there are two white marks on the prothorax above. The axillae are red. Prosopis chrysognatha Cockerell. A male from Frankston, Victoria {T. Kershaw, Dec, 1902; Nat. Mus. Vict. 160) seems to have the faintest possible bluish tint on the abdomen, so faint, that it is difficult to be sure of it. If run in my table among the species with metallic abdomen, it goes straight to P. cognata Sm., which is evidently very closely allied. Smith's cognata is from Champion Bay and Swan River, and has a dark blue abdomen. The female described by Smith is to be con- sidered the type. I have described the female of chrysognatha, and it is not identical with cognata. Prosopis alcyonea Erichson. Mordialloc (Nat. Mus. Vict. 186). Euprosopis elegans (Smith). Prosopis elegans Smith. From the National Museum of Victoria come 5 9, 20^ (187, 152, 170, 251, 188, 151, 153); the localities are Croydon {S. W. Fulton), S. Australia {W. Kershaw) and Fern Tree Gully, Victoria (F. P. Spry). The males, without locality, collected by C. F. Hill, have the postscutellum with only a small yellow spot or patch. Euprosopis nodosicornis n. sp. cf . Length 6 mm. or a little over, like E. elegans var. sydneyana (Ckll.), with the postscutellum broadly yellow, but differing thus: malar space longer; its length 270 microns; the bright ferruginous flagellum with the last four joints thick, with large irregular tubercles above, the three before these subtuberculate. The abdomen has the first two segments and the sides of the third red, the first segment with a diamond-shaped dusky discal mark. The sides of the meso- thorax are broadly yellow. Stigma bright ferruginous. //a6^■ta^— Australia, no locality given (C. F. Hill; Vict. Nat. Mus. 155). 44 PROCEEDINGS OF THE ACADEMY OF [Jan., Kegachile semiluctuosa Smith. National Museum, Victoria {Murray); 17. W. Australia (F. Duboulay; Nat. Mus. Vict. 6). M. famipennis Smith. Tennant's Creek, C.-S. Australia (Field; Nat. :\Ius. Vict. 3, 4). M. monstrosa Smith. Glenrowan (Nat. Mus. Vict. 25). The ventral scopa is white with a slight creamy tint. M. cornifera Radoszkowski is larger, but not more than a variety or race, M. monstrosa cornifera. Saropoda bombiformis Smith. New South Wales (Nat. Mus. Victoria 129); Toowms, Queensland (Nat. Mus. Vict. 128); Studley Park, a male with alxlomen unusually pale (Nat. Mus. Vict. 122). The Toowms female Avas received by the ]\Iuseum from Mr. Annear. Anthophora rhodoscymna Cockerell. Male, more robust than usual, abdomen 6 mm. wide, New South Wales (Nat. Mus. Vict. 118). A. pulchra Smith. Kelvin Grove, Brisbane, Nov. 20, 1911 (Hacker). Nomia australica Smith. Brisbane, Queensland, Nov. 27, 1911 (Hacker). N. flavoviridis Cockerell. Sunnybank, Brisbane, Jan. 17, 1912 (Hacker). This is a variety, identical with Turner's 999 (Jan., 1898) from Mackay. N. muSCOSa Cockerell. Kelvin Grove, Brisbane, Nov. 20, 1911 (Hacker); Brisbane, Nov. 2, 1908 (Hamlyn-H arris). Lestis bombylans (Fb.). Grampians (Nat. Mus. Vict. 126). The front is much broader in male homhylans than in L. aerata; the face-markings in unaltered specimens are bright chrome-yellow, not red. A female from Plenty R. (Nat. Mus. Vict. 127) has dark wings like L. aerata, but it belongs with bombylans. It possibly represents a distinct race. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 45 NOTES ON CATOSTOMOID FISHES. BY HENRY W. FOWLER. The material forming the basis of the present paper is contained in the Academy of Natural Sciences of Philadelphia. Cycleptus elongatus (Le Sueur). One adult from St. Louis, IVIissouri, and another from Kiskiminitas River, Pennsylvania. Genua AMBLODON Rafinesque. This name is allowed to supersede Idiohus Rafinesque, now largely in use. Amblodon is based on two species, Amhlodon buhalus Rafin- esque and Amblodon niger Rafinesque. Jordan and Gilbert have designated Amblodon bubcdus Rafinesque ( = in part Aplodinotus grun- niens Rafinesque) as the type,^ and thus Amblodon would become a synonym of Aplodinotus according to their ruling. However, as Amblodon bubcdus Rafinesque, the type species of Amblodon Rafinesque, applies primarily to the small-mouthed buffalo, I cannot accept their contention. MEGASTOMATOBUS subgen. nov. Type Sckrognathus cyprinella Valenciennes. Mouth large, oblique, terminal, and upper lip about level with lower edge of eye. Lips thin, nearlj^ smooth. Pharyngeals weak. This name is proposed for the large-mouthed buffaloes as Sckrog- nathus Valenciennes, usually attributed to them, has Catostoinus cijprinus Le Sueur (its first species) designated as the type by Jordan and Gilbert,- and is thus a synonym of Carpiodes Rafinesque. (.'^£/'«, large; v___ - - to the rather depressed discal ^ {Pi tubercles in height; lateral ^i^!l.y<^^^^^^~j angles of the metazona pro- ^^/ iecting laterad of the dorsal ^. . „ , , , . . , , 111 Fig. 4. — SpathaHum paranense n. sp. portion oi the lateral lobes a Lateral outline of head and pronotum. considerable distance, the (X -2-) greatest width of the prono- tum, i.e., between these angles, is slightly greater than the length from the cephalic margin along the median line to the caudal margin exclusive of the projections; lateral lobes of the pronotum longer than deep, ventral margin sinuate cephalad, ventro-caudal angle rectangulate, caudal margin with three projecting tubercles, diverted lateral carinse of the prozona strongly marked. Tegmina about two and one-half times the greatest absolute length of the pronotum; apical margin acute-angulate with the immediate apex rounded. Wings about four-fifths the length of the tegmina. Prosternal ridge lamellate, arcuate with the concavity cephalad, the greatest depth mesad. Interspace between the mesosternal and metasternal lobes very strongly transverse. Caudal femora slightly more than four-fifths the length of the tegmina, the genicular lobes and the medio-genicular process acute, medio-dorsal carina with three low rounded lobes, ventro-lateral carina distinctly but not greatly produced; caudal tibiae with eight spines on the lateral margins, ten on the internal margins. General colors cinnamon, wood-broAvn, and seal-brown, marbled and mingled together, lined, streaked and washed one on the other. Head with the face darker than the vertex, fastigium and genae, the carinse of the same region lined with seal-brown; eyes raw umber; antennae Vandyke brown edged with cinnamon. Pronotum with the disk and lateral lobes of the prozona with seal-brown predominating, crest dirty wood -brown; 88 PROCEEDINGS OF THE ACADEMY OF [March, disk of the metazona nearly all cinnamon, darker at the margins and lined with seal-brown mesad; lateral lobes of the metazona seal-brown between the principal ridges. Tegmina pale walnut- brown, with a medio-longitudinal series of small dark blotches, the sutural margins suffused and the whole surface distinctly marbled with shades of brown. Limbs dirty wood-brown, the spines on the caudal femora very narrowly and weakly tipped with black. Measurements. Length of body 30 mm. Jliength of pronotum . 9.5 " Greatest caudal width of disk of pronotum , . 8.2 '' Length of tegmen... 22 " Length of caudal femur 16.8 " The type is the only specimen of the species examined. LOCUSTINiE. DIEDRONOTUS Bolivar. Diedronotus rosulentus (Stai). 1S78. T[rapidoHotus] rosulentus Stal, Bihang till K. Svenska Vet.-Akad. Hand)., V, No. 9, p. 19. [New Grenada.] Surinam. [U. S. N. M.] Two c^. These specimens have the tegmina with the transverse fuscous clouds very distinct proximad, becoming weak distad and extending across the tegmina except for the anal area. The rosy suffusion of the costal section of the wing is weaker than on the disk, being only a coloration of the veins on a fuscous ground. Brunner has recorded this species from near Guayaquil, Ecuador. CHROMACEIS Walker. Chromacris peruviana (Pictet and Saussure). 1887. R[ho77ialea] peruviana Pictet and Saussure, Mittheil. Schweiz. Ent. Gesell., VII, p. 352. [Peru.] Piches and Perene Valleys, Peru, 2,000-3,000 feet. (Soc. Geog. cle Lima.) [U. S. N. M.] ld',19. The size of the female of this species is very considerable and would serve in a great measure to identifj^ it,, aside from the slender form and distinctive coloration. This appears to be the first definite record of the species. TROPIDACRIS Scudder. Tropidacris latreillei (Perty). 1830. Acrydimn Latreillei Perty in Spix and Martius, Delect. Anim. Art., p. 123, pi. XXIV, fig. 4. [Amazon River.] Tobago, West Indies. (B. Sharp.) [A. N. *S. Phila.] One 9 . 1913.] NATURAL SCIENCES OF PHILADELPHIA. 89 Port of Spain, Trinidad. (Ernst T. Giers.) [U. S. N. M.] Two 9 . Colon, Panama. (Wm. Lill.) [U. S. N. M.] One 9 . This species has a broad blackish margin to the wings, the proximal portion of the margin being colored the same as the peripheral section, while the caudal tibiae are chiefly glaucous-green. True Tropidacris dux (Drury)'' from the Bay of Honduras appears to be the species which Pictet and Saussure have described as Tropi- daa-is cardinalis, as shown by the general reddish color of the limbs and narrow black margin of the wings, both features distinctly indicated in Drury's description and figure. It would seem, from our present knowledge of the dux-latreillei group that there is a regular increase southward in the width of the blackish margin to the wings, the individuals from the northern section of the range of the group have the marginal band ver}'^ narrow, those from the southern part of the range having it wide. The future may shoAV the necessity of considering the various species allied to dux as mere geographic races. Tropidacris cristata (Linnaeus). Margarita Island, Venezuela. (Wirt Robinson.) [U. S. N. M.] Two 9. One of these specimens is larger than any of a numljer of main- land specimens examined by the author.' OPHTHALMOLAMPIS Saussure. 1859. Ophthalmokunpis Sau.ssure, Revue et Magasin de Zoologie, 2e ser., XI, p. 394. Included 0. colibri and yersini Saussure, of which the former has been designated as the type by Kirby. Ophthalmolampis colibri Saussure. 1859. 0[mmatnln)npis\ {Ophthalmolampis) colibri Saussure, Revue et Magasin de Zoologie, 2e ser., XI, p. 394. [Guiana.] Surinam. May to September. [Hebard Collection.] One 9 . This individual undoubtedly belongs to Saussure's species, the peculiar type of coloration of the pronotum and tegmina being essentially as he describes. As the original brief description was based on a. male, the female is here described. Size medium; form robust; surface except that of the abdomen rugulose. Head broad, face slightly flattened; occiput rounded, hardly elevated dorsad of the level of the pronotum; fastigium narrow, the length not less than the greatest width, longitudinally sulcate; 3 must. Exot. Ins., II, p. 82, pi. XLIV. 90 PROCEEDINGS OF THE ACADEMY OF [March, interocular space very narrow, less than half the width of the narrow- est portion of the fastigium; interantennal portion of the frontal costa distinctly but not greatly produced, rounding into the fas- tigium, somewhat expanded, not sulcate or punctate, costa for a short distance dorsad and ventrad of the ocellus narrow and sulcate, costa not present ventrad of this portion; face rugoso-punctate, moderately retreating when viewed from the lateral aspect, lateral facial carinse not sharply defined, converging dorsad; eyes large, subovate, moderately prominent; antennae slightly shorter than the pronotum, thick, slightly depressed. Pronotum nearly twice as long as the exposed portion of the head, the greatest caudal width of the whole pronotum nearly equal to the length; cephalic margin slightly arcuate with a distinct but shallow median emargination, caudal margin rounded obtuse-angulate ; three transverse sulci deeply impressed on the dorsum and the caudal two as distinctly indicated on the lateral lobes which they cross almost to the ventral margin; median carina absent, lateral carinse indicated only as raised welts which are traversed by all the sulci and bear a different coloring from the remainder of the pronotum, dorsum strongly and closely punctate; lateral lobes with the extreme dorsal length some- what greater than the depth, ventral margin distinctly sinuato- emarginate cephalad, ventro-caudal angle broadly rounded. Tegmina about three times as long as the head, narrow, arched and over- lapping, completely covered with numerous very small impressed areolae; costal margin straight except for a slight proximal expansion, sutural margin very slightly arcuate, apex obliquely rotundato- truncate, principal veins alone apparent. Wings reaching to the tips of the tegmina. Prosternal spine very short, thick, strongly transverse, blunt. Interspace between the mesosternal lobes slightly transverse and very slightly broader than the lobes them- selves; interspace between the metasternal lobes trigonal, strongly narrowed caudad. Cephahc and median limbs rather short. Caudal femora about twice as long as the pronotum, robust, inflated, the greatest thickness being about two-thirds the depth, which latter is contained three times in the length, carinse serrato-dentate, par- ticularly the medio-dorsal, pagina with a well-marked and regular pattern impressed by punctations, genicular extremity large, genicu- lar lobes broad; caudal tibise about four-fifths the length of the femora, armed on the external margin with seven spines, one of which is apical, and with six on the internal margin; tarsi about three- fourths the length of the tibise, slender, second and third joints subequal and each longer than the first joint. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 91 General colors bay and gamboge-yellow. A very broad bar of bay covers the whole occiput, the dorsum of the pronotum and two- thirds of the tegmina; this area being edged laterad on the occiput and pronotum with a narrow line of white ; on the tegmina are placed two similar parallel white lines, the area between them being car- mine and that between the innermost line and the bay color black; the costal edge of the tegmina is greenish vitreous. Dorsum of fastigium pomegranate -purple with a very narrow median line of pale color, front of fastigium pea-green; face dull olive-green sprinkled with reddish, area ventro-caudad of the eyes olive-green, a bar of white extending obliquely from the insertion of the antennae to the ventro-cephalad angle of the pronotum; eyes mars brown; an- tennae with the proximal joint pale, remainder black. Pronotum with the lateral lobes gamboge-yellow with a slight greenish tinge. Pleura^ venter and abdomen similar in color to the lateral lobes of the pronotum, the dorsum of the abdomen bearing a broad median bar of pale liver-brown. Cephalic and median limbs similar in color to the lateral lobes of the pronotum, the median femora with a distinct maroon wash; tarsal joints distinctly greenish. Caudal femora very pale oil-green, the genicular region blackish except for a pure white spot on each genicular lobe, serrations on medio- dorsal carina black; caudal tibiae oil -green with a pregenicular area and the sides of the genicular portion black, genicular angle touched with reddish, distal half of tibiae blackish internally, french green externally, spines and spurs tipped with black; caudal tarsi very pale greenish, the two proximal joints washed with pinkish. Measure7nents. Length of body 26 mm. Length of pronotum 6.8 " Length of tegmen 12 .5 " Length of caudal femur 14.3 " T.a:NIOPHORA st&i. 187.3. Twniophora St&l, Recensio Orthopterorum, I, p. .34, 53. Included T. detitipes and geniculata Stal, of which dentipes has been designated as the type by Kirby. Taeniophora femorata Bruner. 1907. Tmiiophora femorata Bruner, Biol. Cent.-Amer., Orth., II, p. 245. [Pozo Azul, Costa Rica.] Chiriqui, Panama. [Hebard Collection.] One male. This specimen agrees fully with the description of femorata except 92 PROCEEDINGS OF THE ACADEMY OF [March, for the coloration of the antennse and the cephahc and median limbs, which instead of being dark ohvaceous are dull ochraceous. HENIA Giglio-Tos. 1898. Henia Giglio-Tos, BoUott, Mus. Zool. Anat. Comp. Torino, XIII, No. 311, pp. 45 and .55. Type. — Gryllus frenatus Marschall. Henia boliviana n. sp. Type: 9 ; Yungas de la Paz, Bolivia, altitude 1,000 meters. [Hebard Collection.] Differing from the type species in some details of the coloration, Fig. 5. — Henia bolimana n. sp. Lateral view of type. (X 4.) the larger size and proportionately longer caudal limbs, tegmina, and wings. Size medium; form elongate; surface shiny. Head with its dorsal length slightly more than half that of the pronotum, dorsum slightly punctate, occiput hardly elevated, interocular region less than half the width of the fastigium and descending slightly from the occiput; fastigium acute with the lateral margins slightly arcuate, median carina distinct on the dorsum of the fastigium; fastigial angle trun- cate when viewed from the side, rounding into the decidedly re- treating face; frontal costa narrow, not sharply defined, shallowly and narrowly sulcate ventrad of the ocellus, not sulcate dorsad; 1913. NATURAL SCIENCES OF PHILADELPHIA. 93 eyes subovate, moderately prominent; antennae filiform, about twice the length of the head and pronotum to- gether. Pronotum rather narrow, the greatest ;, ;'' dorsal (caudal) width contained nearly twice in :', the length; cephalic margin of the disk slightly ',', arcuate, caudal margin considerably arcuate; ','; median carina very weak, subobsolete on the metazona, transverse sulci three in number, of ';' which only the caudal cuts the median carina; metazona one and one-half times the length of the prozona, slightly ascendant when seen ';', /.' from the side; lateral shoulders well rounded; ',', lateral lobes distinctly longer than high, ventral V; margin obliquely sinuato-emarginate cephalad, V: broadly rounded caudad; entire disk and meta- zona of the lateral lobes punctate. Tegmina quite narrow, lanceolate, costal lobe very shallow, spurious intercalary vein present; apex very narrowly rounded. Prosternal spine distinctly compressed, moderately acute, with a distinct caudal trend. Interspace between the mesoster- nal lobes slightly transverse, the margins of the lobes strongly arcuate; metasternal lobes sub- attingent. Pleura with their dorsal portions punctate. Ovipositor jaws very short and thick, moderately compressed, teeth robust. Cephalic and median limbs slender, the median distinctly longer than the cephalic. Caudal femora slightly surpassing the tips of the teg- mina, moderately slender, genicular lobes acute, surface glabrous,, pattern of the pagina consisting of arcuate or arcuato-angulate lines; caudal tibia somewhat shorter than the caudal femora, dis- tinctly sinuate, armed on the external margin with six spines, on the internal with nine, both margins with distinct low lamellate expansions on the distal half; caudal tarsi about half the length of the tibiae, the proximal joint hardly shorter than the third, second joint less than half the length of the first; arolium small. General colors yellow and black. Head with the dorsum of the fastigium, interocular region and occiput olive-yellow; front and sides of the fastigium and broad postocular bars shining black; face and gense dull greenish-yellow, the latter clear gamboge-yellow Fig. 6. — Henia bo- lt vian a n. sp. Dorsal view of head and prono- t u m of type. (X 4.) ■ 94 PROCEEDINGS OF THE ACADEMY OF [March, dorsad; eyes burnt umber. Pronotum with the dorsum olive-yellow, this area expanding caudad, continuations of the cephalic postocular bars shining black; ventral half of the lateral lobes similar to the genge. Tegmina with the anal field clay color with a touch of green- ish, remainder shining black. Venter and abdomen pale cinnamon. Pleura blackish dorsad, this area edged with gamboge-yellow. Cephalic and median femora dirty olive-yellow, the tibiae and tarsi dull glaucous. Caudal femora gamboge-yellow, the genicular arches and area surrounding each of them shining black, genicular lobes very pale greenish; caudal tibiae glaucous blue, the color deep on the distal half, spines whitish tipped with black. Measurements. Length of body ? 21 .8 mm. Length of pronotum 5 " Length of tegmen 15 .8 " Length of caudal femur 13.8 " The type specimen is the only one of the species examined. COPIOCERA Burmeister. Copiocera surinamensis n. sp. Type; 9 ; Surinam. [Hebard Collection.] Closely allied to C. specularis and lepida Gerstaecker^ but differing Fig. 7. — Copiocera surinamensis n. sp Lateral view of type. (X 2.) from both in the depressed proximal portion of the antennae and the carmine internal faces of the femora; from specularis it also differs in the'^more acute fastigium, the more uniform size of the pronotal punctures and the smaller size and proportionately shorter wings; * Mittheil. Naturwissen. Ver. Neu-Vorpomm. Rugen, XX, pp. 34-35 (1889). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 95 from lepidus it also differs in the dull olivaceous caudal tibiae and tarsi. Size medium; form very elongate; surface of the pronotum and pleura scabroso-punctate, of the abdomen shiny. Head with the dorsal length about four-fifths that of the dorsum of the pronotum; occiput slightly arched, not elevated, interocular space nearly two- thirds the greatest width of the fastigium; fa.stigium acute-angulate, plane, angle when seen from the side rotundato-truncate ; face very considerably retreating; frontal costa distinct only to a short dis- tance ventrad of the ocellus, appreciably constricted immediately ventrad of the ocellus and faintly so dorsad of the same point, de- cidedly depressed within its margins; eyes elongate ovate, longer than the infraocular portion of the gense, moderately prominent when viewed from the dorsum; antennae distinctly but not greatly longer than the head and pronotum, somewhat ensiform, the expan- sion almost wholly in the five proximal joints, the distal half tapering almost imperceptibly, the apex somewhat blunt. Pronotum with the greatest caudal width of the disk contained one and two-thirds times in the length; cephalic margin truncato-arcuate, caudal margin very slightly obtuse-angulate, median carina present only on the metazona where it is but little elevated, transverse sulci three in number, metazona contained one and one-half times in the prozona; lateral lobes slightly longer than deep, ventral margin arcuato-emarginate cephalad, truncate caudad, caudal angle bluntl}' rectangulate. Tegmina about five times the length of th-e pronotum, subequal in width, the latter being about two-thirds the dorsal length of the pronotum; costal margin consider- ably arcuate in the distal third, sutural margin nearly straight, apex narrowly rounded; inter- calary area without any longitudinal vein. Prosternal process transverse, constricted mesad, the apical portion somewhat compressed, sub- fusiform and the lateral processes blunt; inter- space between the mesosternal lobes very narrow; metasternal lobes contiguous. Cephalic and median limbs short, rather slender. Caudal femora slightly more than half the length of the tegmina, compressed, rather regularly tapering, the greatest width contained about five and one-half times in the Fig. 8. — Copiocera suri7iamensis n. sp. Dorsal view of head and pro- notum. (X 2.) 96 PROCEEDINGS OF THE ACADEMY OF [Mai'ch^ length; caudal tibiae slightly shorter than the femora, external margins armed with five spines, of which the distal three are grouped separate from the others, internal margins with ten to eleven spines; caudal tarsi with the second joint slightly more than half the length of the first, third slightly longer than the first. General color very dull olive-green, slightly yellowish on the head. Antennae and fastigium blackish, the distal fifth of the antennae cadmium-yellow; eyes raw umber. Abdomen Chinese orange dorsad and laterad, the ventral and lateral portions of the inter-segmental margins of the dorsal sclerites broadly blackish, leaving the orange as semicircular blotches visible ventrad of the closed tegmina. Cephalic and median limbs washed with very dull purplish. Internal and ventral faces of the caudal femora very deep maroon-purple, internal face of the genicular region of the caudal femora and tibiae black, external face of the same area of the former with an apical and median spot on the lobes as well as the arches and dorsal portion of the same region cadmium-yellow; caudal tibiae dirty purplish- brown, the spines black. Measurements. Length of body 42 . 5 mm. Length of pronotum 7 Length of tegmen .s 36 .5 Length of caudal femur 19 The type is unique. ZYGOCLISTRON Rehn. Zygoclistron acutum u sp. Type: 9 ; Petropolis, State of Rio de Janeiro, Brazil. [Hebard Collection.] Closely related to Z. superbwn Rehn, but differing in the more acute fastigium, the less expanded and much more shallowly sulcate frontal costa, the more bullate prozona of the pronotum with the median carina of that portion weak, and in the caudal width of the interspace between the metasternal lobes being equal to the narrowest portion of the interspace between the mesosternal lobes, instead of distinctly wider as in superbum. Size large, form moderately robust. Head with the occiput con- siderably arcuate, but little elevated, descending slightly to the interocular region which is slightly more than two-thirds the width of 1913.] NATUEAL SCIENCES OF PHILADELPHIA. 97 fastigium; fastigium slightly declivent, the distal half acute-angu- late when seen from the dorsum, shallowly excavate, angle of the fastigium when seen from the side rounded rectangulate ; face slightly retreating; frontal costa regularly expanding to the clypeal suture, moderately excavate, the margins somewhat sinuate, face somewhat scabrous; eyes subovoid, slightly y^g, 9-12.-Dorsal and lateral longer than the infra-ocular por- views of the fastigium of Zygo- tion of the gen^, moderately promi- *J'™» r^Z.S' ('^I'V&ffi^'J' nent when seen from the dorsum. 11-12). (x 4.) Pronotum somewhat inflated on the prozona, deplanate on the metazona. slightly tectate on the prozona, the prozona somewhat elevated when seen in profile, the metazona being rather straight and slightly less elevated; dorsum of the pronotum slightly less than twice the dorsal length of the head, cephalic and caudal margins obtuse-angulate, the former with the angle sharp, the latter with it subtruncate and the sides of the angle slightly emarginate; caudal width of the disk slightly more than two- thirds the length; median carina distinct, rather high on the meta- zona, blunt, cut by three transverse sulci, the metazona slightly shorter than the prozona; lateral shoulders distinct on the metazona, well rounded on the prozona; lateral lobes distinctly longer than deep, the ventral margin with a slight oblique truncation cephalad; surface of the entire pronotum strongly scabroso-punctate. Tegmina three and a third times the length of the pronotum, reaching caudad of the tips of the femora; costal margins moderately arcuate proximad and distad, straight mesad, sutural margin nearly straight, apex rather narrowly rounded; intercalary area with no distinct inter- calary vein. Prosternal spine somewhat compressed, slightly bulbous, and very much rounded longitudinally at the apex. Inter- space between the mesosternal lobes distinctly longer than broad; metasternal lobes separated by a wedge-shaped interspace which at its narrowest point is subequal to the mesosternal interspace. Cephalic and median limbs moderately robust, rather short. Caudal femora falling slightly short of the tips of the ovipositor jaws, tapering, rather slender; caudal tibiae with eight to nine spines on the external margin, internal margin with twelve spines considerably longer than those of the external margin. 7 98 PROCEEDINGS OF THE ACADEMY OF [March, Color pattern exactly as in Z. superbimi, the colors themselves being the same ^vith the following exceptions: yellow on dorsum of pronotum and anal area of tegmina duller and more ochraceous, darker markings on pronotum, more purplish-red, caudal femora' distinctly speckled with olive-green. Measurements. Length of body 49 .5 mm. Length of pronotum • 10.8 Greatest dorsal width of disk of pronotum 7.3 " Length of tegmen 35.8 Length of caudal femur 23.2 " The type specimen alone has been examined. VILERNA Stai. "Vilerna rugulosa Stal. Santa Catharina, Brazil. [Hebard Collection.] One 9 . Rio Janeiro, Brazil. [Hebard Collection.] One 9 . Espirito Santo, Brazil. [Hebard Collection.] One 9 . The tegmina slightly exceed the tips of the caudal femora in the Santa Catharina specimen. CALETODES Giglio-Tos. 1898. Caletodes Giglio-To.s, BoUett. Mus. Zool. Anat. Comp. Torino, XIII, No. 311, pp. 47, 58. . Type. — C. alatus Giglio-Tos (designated by Kirby). Caletodes pulchripes n. sp. Type: 9 ; Balzapamba, Ecuador. (R. Haensch.) [Hebard Col- lection.] Allied to C. alatus from Gualaquiza and Valley of Santiago, Ecuador, but differing in the structure of the frontal costa, the incised caudal angle of the pronotum and the rounded apex of the fastigium. From C. festce Giglio-Tos from the Valley of Santiago, it differs in that the lateral carinse of the pronotum are much less apparent than the median, in the longer tegmina which are normal and not lateral in position, in the cylindrical prosternal spine and the lesser size. Size medium: form rather robust; surface of head and pleura rugulose, of pronotum rugoso-tuberculate, dorsum of abdomen with numerous small irregular transverse wrinkles. Head with the dorsum about five-eighths the dorsal length of the pronotum; occi- put considerably arcuate, distinctly but slightly elevated, descending 1913. NATURAL SCIENCES OF PHILADELPHIA. 99 to the interocular space which is hardly more than half the greatest width of the fastigium, occiput to junction with fastigium bearing a Fig. 13. — Caletodes pidchripes n. sp. Lateral view of type. (X 3.) distinct but rather irregular median carina; fastigium produced, blunt lanceolate when seen from the dorsum, the lateral margins subparallel proximad, the distal section regularly converging to the well-rounded apex, a pair of irregular lateral carinse are present on the proximal portion, the entire surface of the dorsum of the fastigium concavely excavate, when seen from the side the angle of the fastigium is seen to be rounded rectangulate dorsad, the ventral section of the process strongly arcuate and curving into the slightly retreating face, the proximo-dorsal half of the fastigium horizontal, the distal half considerably declivent; frontal costa extending to the cljrpeal suture, distinctly excavate, con- siderably constricted ventrad of the ocellus; accessory facial carinse very slightly divergent ventrad; eyes very slightly reniform in shape, subequal to the infra-ocular portion of the gense, moderately prominent when viewed from the dorsum; antennae equal to the pronotum and half the length of the head, ensiform, the segments distinct, flattened, subtriangular in section, the length of the segments beyond the fourth usually .alternates short and long, apex blunt. Pronotum with the length Fig. 14. — Caletodes pidchripes n. sp. Dorsal outline of head and prono- tum. (X 3.) 100 PROCEEDINGS OF THE ACADEMY OF [March^ one and two-thirds times that of the head, the greatest caudal width of the disk contained about one and one-half times in the length; cephalic margin sub- truncate, caudal margin obtuse-angulate, the apex very blunt and obtusely incised, the mar- gins somewhat sinuate; median carina distinct but low and somewhat irregular, cut by three transverse sulci, the caudal the deepest and widest, metazona about three-fourths the length Pig 15 Caletodes o^ the prozona; lateral carinae formed only of pulchripes n. sp. blunt tubercles and but little apparent except Outline of face. i i i. xv, j. j i, i i (X 4^ caudad where they are represented by rounded shoulders; lateral lobes longer than deep, cephalic and caudal margins obliquely converging, ventral margin with a considerable sinuate emargination cephalad; dorsal outline of the pronotum very slightly arched on the cephalic portion of the pro- zona, straight on the remainder of the pronotum. Tegmina slightly longer than the head and pronotum together, attingent and over- lapping dorsad, tapering in the distal two-thirds, costal margin with a considerable proximal lobe, nearly straight thence to the apex, sutural margin very slightly arcuate proximad; intercalary area with a distinct intercalary vein. Prosternal spine erects regularly tapering, apex slightly blunted; interspace between the mesosternal lobes very slightly transverse; interspace between the metasternal lobes with its caudal width only about half that between the mesosternal lobes. Ovipositor jaws short and thick, the proximal portions of the margins blunt serrate. Cephalic and median limbs moderately robust. Caudal femora about twice the length of the pronotum, robust, the margins distinctly serrate, the pagina dis- tinctly patterned, the ridges with numerous asperities, genicular lobes rounded; caudal tibiae slightly shorter than the femora,, slightly but very noticeably decurved proximad, external margin with seven spines, internal with nine; caudal tarsi with the proximal and distal joints subequal, arolium present. General color bistre, washed very irregularly and not at all strongly with drab, asperities on the pronotum, limbs and spotting on facial carinse blackish; eyes mummy -brown; caudal femora with a spot on the ventro-median portion of the lateral face cinnamon, internal face washed with carmine, interno-ventral with crimson, the dorsal face with traces of three cinnamon bands, the distal of which is an imperfect annulus, genicular arches and internal genicular face 1913.] NATURAL SCIENCES OF PHILADELPHIA. 101 clay color; caudal tibiae crimson, the external face with some of the general color and an imperfect pale pregenicular annulus also present, spines ochraceous tipped with black. Measvrements. Length of body 27 mm. Length of pronotmn 6.7 " Length of tegmen 12 " Length of caudal femur 13.2 " The type is unique. SAPARUS Giglio-To3. 1898. Saparus Giglio-Tos, Bollett. Mus. Zool. .\nat. Comp., XIII, No. 311, pp. 47, 60. Type. — Saparus cequatorialis Giglio-Tos. Saparus aequatorialis Giglio-Tos. 1898. S[apnrus] cequatorialis Giglio-Tos, Bollett. Mus. Zool. Anat. Comp., XIII, No. 311, p. 61. [Valley of Santiago, Ecuador.] Piches and Perene Valleys, 2,000 to 3,000 feet, Peru. (Soc. Geog. de Lima.) [U. S. N. M.] One cf , one 9 . The male individual here recorded is slightly smaller than the type measurements given by Giglio-Tos. As the female sex was hitherto unknown, a few notes are here given from the specimen in hand. The eyes are less prominent in the female than in the male, while the head is broader proportionately at the base of the mandibles. The lateral facial carina? are much more divergent in the female, while the structure of the fastigium and frontal costa is about the same in both sexes. The interspace between the mesoster- nal lobes is slightly longitudinal in the male, subquadrate in the female, while the metasternal lobes are separated by a very narrow space in the male and by a considerable transverse interspace in the female. The face and mouth parts of the male are very pale ochraceous, distinctly contrasted with the general coloration. Measurements. cf' 9 Length of body 26 mm. 38 mm. Length of dorsum of pronotum 5 " 7 " Length of tegmen 27.5 " 29 " Greatest width of tegmen 4.5 " 6.5 " Length of caudal femur 16 '' 20.8 " ANTIPHANES Stai. 1878. Antiphanes St§,l, Bihang till K. Svenska Vet. Akad. HandJingar V, No. 4, p. 35. Type. — Ommatolampis nodicoUis Burmeister. 102 PROCEEDINGS OF THE ACADEMY OF [Maich^. Antiphanes nodicollis (Burmeister). 1838. 0[mmatolampis] nodicollis Burmeister, Handb. der Entom., Bd. II,. Abtheil. II, pt. I, p. 637. [Brazil.] Minas Geraes, Brazil. 1897. [Hebard Collection.] One ? . With only Burmeister 's very brief description to furnish one the characters of the species, it is somewhat difficult to decide whether the specimen in hand is his species or not. Burmeister de- scribes the genicular regions, caudal tibiae and tarsi as sanguineous, while in the Minas Geraes individual only the tarsi and distal half of the tibiae are of that colpr, but this may possibly be due to the fact that the original specimen was a male. Until further evidence is at hand, it seems preferable to use Burmeister's name for the specimen before us. OMMATOLAMPIS Burmeister. 1838. Ommatolampis Burmeister, Handbuch der Entom., Bd. II, Abtheil. II, pt. I, p. 636. Type designated by Kirby — 0. perspicillata (Johansson). Ommatolampis perspicillata (Johansson). 1763. Gryllus perspicillatus Johansson, Amoen. Acad., VI, p. 398. ["In- diLs."] Surinam. [Hebard Collection.] One cf, one 9. Ommatolampis palpata St&l. 1878. 0[mmalolampis\ palpata StS,l, Bihang till K. Svenska Vet.-Akad. Hand!., V, No. 4, p. 81. [Peru.] Piches and Perene Valleys, 2,000-3,000 feet elevation, Peru. (Soc. Geog. de Lima.) [U. S. N. M.] One 9 . This record appears to be the first since the description of the species. The measurements of the specimen are as follows: Length of body 34 mm. Length of pronotum 6.5 " Greatest caudal width of pronotum 7.8 " Length of tegmcn 1.5 " Length of caudal femur 22.3 •" OULENOTACRIS n. gen.s A member of the Nicarchi and related to Anablysis Gerstaecker, but differing in the lesser number of antennal joints and the absence of any prominent tubercles on the pronotum. The new genus also possesses a heavy robust structure quite different from Anablysis. Fastigium subrectangulate, a slight median longitudinal depression present, interantennal projection distinct, but not greatly con- 5 0)';' 7/, cicatrice, • noror^ back; fiKpic, locust. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 103 spicuous; frontal costa punctate dorsad, sulcate ventrad; eyes prominent; antennae fifteen-jointed. Pronotum punctate, with no prominent lobes or carinae, transverse sulci well impressed. Tegmina exceeding the apex of the abdomen, narrow, tapering. Interspaces between the mesosternal and metasternal lobes subquadrate. Ovipositor jaws short and thick. Caudal limbs robust, femora with the margins finely serrate; external margin of the tibia? with six spines, no apical external spine present; tarsi with the first and third joints subequal, second about half the length of the first. Type — 0. robusta n. sp. Oulenotacris robusta n. sp. Type: 9 ; Surinam. May-September. [Hebard Collection.] \^ Size moderately small; form very robust; surface of pronotum, pleura, face and dorsal face of the femora punctate. Head with the dorsal length about three-fifths that of the pronotum; occiput very shghtly arched, descending appreciably to the interocular region which is about equal in width to half that of the fastigium; fastigium shghtly broader than long, rectangulate with the apex truncate, dorsum with a distinct but very slight longitudinal line; fastig- ial process moderately protuberant when seen from the side, rotundato- truncate, face slightly retreating; frontal costa broadest between the antennae, distinctly constricted ven- trad of the ocellus and toward the sutural margin, not very deeply sulcate around and ventrad of the ocellus, punctate dorsad; supple- mentary facial carinae prominent, sub- parallel; no distinct lateral foveolae; eyes subreniform ovate, distinctlj^ longer than the infra-ocular sulcus, very prominent from both aspects; antennae about equal to the head and pronotum in length, thick, slightly depressed, blunt. Pronotum with the greatest width of the disk, about four-fifths the length of the same Fig. 16. — Oulenotacris robusta n. sp. Dorsal view of type. (X3.) ?phalic margin gently arcuate 104 PROCEEDINGS OF THE ACADEMY OF [March, with a very broad and shallow median emargination, caudal margin obtuse-angulate; median carina very faintly indicated on the meta- zona and the cephalic half of the prozona, absent elsewhere; trans- verse sulci distinct, the caudal very deep on the median portion of the dorsum ; disk almost flat, lateral angles rounded but apparent ; lateral lobes slightly longer than deep, the ventro-cephalic angle broadly excised by a deep emargination. Tegmina distinctly ex- ceeding the apex of the abdomen and slightly exceeding the tips of the caudal femora, tapering, distal third narrow with the apex narrowly rounded; costal margin with a distinct but shallow lobe; Fig. 17. — Oulenotacris robusta n. sp. Lateral view of type. (X 3.) intercalary vein distinct, at least distad. Prosternal spine very short and low, subconoid; interspace between the mesosternal lobes transverse; interspace between the metasternal lobes subquadrate, the cephalic width (i.e., that between the foveolae) greater than the caudal. Abdomen with the ovipositor jaws distinctly com- pressed and short. Cephalic and median limbs of medium size. Caudal femora robust, the greatest width contained about three and a half times in the length; medio-dorsal carina moderately serrate, pagina with the pattern distinct and regular, genicular lobes with the ventral margin emarginate distad; caudal tibiae distinctly shorter than the femora, armed on the external margin with six spines, internal margin with eight to nine spines, no apical spine present on the external margin; caudal tarsi about half the length of the tibise, third joint shghtly longer than the first, second about half the length of the first, arolia of medium size. General color bistre, more olivaceous on the dorsum and the greater area of the later portion of the metazona. Occiput, face and mouth parts with quite a little dull yellowish mingled with the general color; gense soiled yellowish, this being continued on the 1913.] NATURAL SCIENCES OF PHILADELPHIA. 105 lateral lobes of the pronotum by an obliquely defined ventral patch of chrome-yellow; facial carinae dashed with blackish. Eyes tawny- olive; antennae olive. Dorsal portion of the lateral lobes of the pro- zona washed with dull claret-browTi. Tegmina with numerous small quadrate areas of wood-browTi on the general color. Disk of the wings lemon-yellow. Pleura with a broken continuation of the yellow pronotal bar and an additional dash of dull yellowish bordered by dull blackish. Venter raw umber; dorsum of the abdomen prout's brown, median area of the lateral aspect of the proximal segments shining blackish. Cephalic and median femora burnt umber and blackish. Caudal femora vinaceous, rufous dorsad, ecru-drab on the ventral portion of the pagina, maroon on the externo-ventral face, carmine on the internal face, two indistinct oblique bars are present, seal-browai in color, but occasionally touched with greenish, genicu- lar region dark clay color; caudal tibiae very dull purplish on the internal face, very dull olive-green on the external face, a broad poorly defined proximal area pale, spines pale yellow tipped with black. Measurements. Length of body 23 mm. Length of pronotum 5.2 " Length of tegmen 17 .5 " Length of caudal femur 13.2 " The tvpe is unique. SITALCES stai. 1878. Sitalces St&l, Bihang till K. Svenska Vet. Akad. Handlingar, V, Xo. 9, p. 16. TjToe designated by Kirb}^ — S. volxemi Stal. Sitalces balzapambae n. sp. Type: d^ ; Balzapamba, Ecuador (R. Haensch.) [Hebard Col- lection.] Fig. 18. — Sitalces balzapambce n. sp. Lateral view of type. (X 4.) 106 PROCEEDINGS OF THE ACADEMY OF [March, Allied to S. trinitatis Bruner, with a specimen of which it has been compared, but differing in the less prominent eyes, the broader interspace between the same, the more tectate dorsum of the prono- tum, the broader and differently shaped distal portion of the tegmina and very different character of the apex of the abdomen. Size small; form shghtly compressed, a distinct median carina present from the cephalic margin of the dorsum of the pronotum to the apex of the abdomen, the dorsum for this reason being tectate; surface of the thoracic segments, dorsum of the head and to an extent of the limbs ruguloso-punctate. Head with its dorsal length three-fifths that of the pronotum in the male, half the length of the same in the female; occiput distinctly arcuate and provided with a pair of converging irregular channels; interocular space about half the greatest width of the fastigium, provided with a shallow but distinct sulcus which extends to the fastigial margin; fastigium distinctly broader than long, rounded rectangulate, very slightly acute in the male, the immediate angle subtruncate, surface with a pair of rather low parallel ridges flanking the central sulcus, margins with a distinctly elevated rim; fastigial process slightly protuberant when seen from the side, subtruncate, forming an appreciable angle with the dorsum of the fastigium and gently curving ventrad into the slightly retreating face; frontal costa continuous, very slightly expanding ventrad of the ocellus, punctate dorsad, sulcate from between the antennae ventrad; supplementary facial carinse ■ > slightly sinuate and slightly divergent ventrad; V, ,y areas usually occupied by the lateral foveolae •.'. .7 strongly punctate; eyes elliptical, longer and narrower in the female than in the male, length \\ / very considerably more than that of the infra- ocular portion of the gense, distinctly prominent in both sexes. Pronotum with the greatest caudal width of the disk contained one and one-quarter (cf) to one and one-third (9) times in the length of the disk, distinctly tectate; cephalic margin slightly arcuate, caudal margin rotundato-truncate with a well-marked median ' ^ffihapamh Jn.^sn. V-shaped emargination which is less pronounced Dorsal outline of in the female than in the male; median carina turn 'o^f t*y°pe" distinct, subequal, cut by three transverse sulci, (X 4.) metazona about half the length of the prozona; lateral angles not at all strongly marked, slightly converg- 1913.] NATURAL SCIENCES OF PHILADELPHIA. 107 ing to the first transverse sulcus, then regularly but not greatly diverging caudad; lateral lobes distinctly longer than deep, the cephalic portion of the ventral margin obliquely emarginate, caudo-ventral angle very broadly rounded. Tegmina in both sexes slightly surpassing the caudal margin of the meta- notum, slightly curved ventrad with the greatest width at the distal third, apex rounded. Prosternal spine erect, conical, not very sharp; interspace between the mesosternal lobes moderately trans- verse; interspace between the metasternal lobes of the usual key- stone shape, much narrower than that between the mesosternal lobes. Ovipositor jaws of the female very slightly compressed, the dorsal pair subequal in depth in the proximal half; supra-anal plate of the male acute trigonal; cerci of the male styliform, reaching about to the apex of the supra-anal plate; subgenital plate with the apex not elevated above the general dorsal margin of the plate, rounded when seen from the dorsum. Cephalic and median limbs proportionately^ more robust in the male than in the female. Caudal femora moderately robust in the male, weaker and smaller propor- tionately in the female, exceeding the apex of the abdomen in both sexes, pagina with the pattern rather coarse but regular and distinct ,^ medio-dorsal carina finely serrulate; caudal tibiae slightly shorter than the femora, armed on the external margin with eight spines^ on the internal with nine spines; caudal tarsi with the third joint appreciably longer than the first. General color in the female drab, sprinkled, lined and dotted with blackish, in the male Isabella color marked in the same fashion. An area along the median line of the body almost clear base color in the male, the sides of the proximal two-thirds of the abdomen shining black in both sexes, this area being more extended dorsad in the male. Head with the face naples yellow in the male, dull orange-buff in the female, dull blackish around the bases of the an- tennae; occiput and cheeks prout's brown in the male, Vandyke brown in the female; eyes pale tawny-olive in the male, walnut- brown in the female. Pronotum with the dorsal portion of the lateral lobes dark, median carina blackish, particularly in the male; ventral half of the lateral lobes the same color as the face, limited dorsad by an obtuse angulate patch of blackish. Tegmina prout's brown in the male, walnut-brown in the female. Venter of the abdomen primrose-yellow in the male, raw umber in the female, provided in each sex with a medio-longitudinal shining blackish-ljrown bar reaching to the margin of the subgenital plate; sternal plates mottled 108 PROCEEDINGS OF THE ACADEMY OF [March, blackish and primrose-yellow (cf ) or blackish and raw umber (9). Cephalic and median limbs of the general colors. Caudal limbs broccoli-brown in the male, chocolate-brown in the female, the dorsal surface at about two-fifths the distance from the base provided with a velutinous black spot, internal face blue-black, ventral faces very deep bottle-green; caudal tibiae glaucous, paler in the male, the spines yellowish with the apical half black. Afeasurenmits. cT" 9 Length of body 17 mm. 20.4 mm. Length of pronotum 3.8 " 4.4 " Length of tegmen 3.5 " 4 " Length of caudal femur 10.6 " 12 " In addition to the male type, we have before us a female allotype, the differential characters of which are included in the above description. Sitalces debilis n. sp. Type: 9 ; Rosario, Santa Inez, 1,250 meters, east of the Andes.^ October 31, 1899. [Hebard Collection.] Belonging to the section a of the genus as described by Stal, Fig. 20.—Sitalces debilis n. sp. Lateral view of type. (X 3.) l)ut not closely related to either of the two species there described or the more recently characterized S. nudus Bruner. Size rather small; form robust, subfusiform; surface almost ^The locality for this species is in every probability Rosario, Gualaquiza Valley, basin of the Rio Maranon, Eucador. " 1913.] NATURAL SCIENCES OF PHILADELPHIA. lOQ* entirely rugoso-punctate. Head with the dorsal length nearly three- fifths that of the pronotum; occiput slightly arched, not elevated, perceptibly descending to the interocular region, the interspace being very narrow, hardly more than a fourth the greatest fastigial width, not regularly narrowing, but of subequal width for some short distance; fastigium transverse, slightly obtuse-angulate with the apex subtruncate, the fastigial margins with a slight rim, the surface of the fastigium slightly impresso-punctate ; fastigial process when seen from the side not projecting beyond the line of the face, the latter being but very slightly retreating, the fastigio-facial angle very slightly rounded; frontal costa absent on the ventral portion of the face, appreciably but not greatly narrowed dorsad and ventrad, irregularly sulcate around the ocellus, deeply punctate dorsad; lateral foveolar areas ,/ punctate; supplementary facial carinse con- siderably divergent caudad; eyes eUiptical, very distinctly longer than the infra-ocular portion of the gense, moderately prominent when viewed // from the dorsum. Pronotum rounded transversely, hardly tectate, the length slightly shorter than the greatest caudal width; cephalic margin sub- truncate, caudal margin truncate with a broad, shallow median emargination ; median carina distinct cephalad and caudad, very weak mesad, transverse sulci three in number, prozona nearly ^^§'4^77? ^n^'^sp^ twice the length of the metazona; lateral lobes Dorsal outline of of the pronotum not separated from the dorsum ^^^^^ ^^f PJ°^«y by distinct angles or carinse, rounding regularly (X 3.) into the vertical lobes, longer than deep, cephalic and caudal margins somewhat sinuate, ventral margin with a pro- nounced ventro-cephalic emargination, obtuse-angulate caudad. Mesonotum and metanotum very broadly obtuse-angulate emar- ginate, the metanotum with the angle more apparent than the mesonotum. Tegmina and wings absent. Prosternal spine rather small, conical, acute; interspace between the mesosternal lobes slightly transverse ; interspace between the metasternal lobes smaller than the mesosternal interspace, slightl}^ transverse. Abdomen moderately compressed, keeled; dorsal ovipositor jaws \vith their external margin very bluntly serrate. Cephalic and median limbs rather slender. Caudal femora about three times as long as the pronotum, tapering, the medio-dorsal carina serrate, the ventro- 110 PROCEEDINGS OF THE ACADEMY OF [March, lateral sparselj- serrato-dentate with a weaker serration between the higher ones, pagina regularly patterned, ventral margin of the genicular lobes sinuate; caudal tibiae very slightly shorter than the femora, distinctly sinuate, armed on the external margin with six spines, on the internal margin with six to seven; caudal tarsi with the proximal joint distinctly shorter than the third, second hardly half the length of the proximal one. General color olive, blackish-brown on the ventral surface, the face, cheeks and dorsal portion of the mouth parts Isabella color; €yes cinnamon cephalad, raw umber caudad. Caudal femora pale tawny-olive, the dorsal surface entirely washed with the same, genicular arches blackish-brown, ventral sulcus dark bottle-green; caudal tibiae dull olive-green, the spines french green with their distal halves black. Measurements. Length of body 20 mm. Length of pronotum 4 " Length of caudal femur 13 " The type is unique. SCHISTOCERCA Stai. Schistocerca aegyptia (Thunb.). 181.5. (ll[ryllus] cegyplius Thunberg, Mem. I'Acad. Imp. Sci. St. Pctersb., V, p. 247. [St. Bartholomew, West Indies.] St. Thomas, Danish West Indies. December, 1882. A. Koebele. [U. S. N. M.] One d". When compared with a male of cegij-ptia from Culebra Island, the St. Thomas specimen is seen to differ structurally only in the slightly shorter caudal femora. The coloration of the St. Thomas individual has in a gi'eat measure been effaced by the preservative in which the specimen was immersed, but the pattern, as it remains, is essentially the same as in the Culebra representative. ScMstocerca vaga brevis n. subsp. Types: cf and 9 ; Clarion Island, Pacific Ocean, S. W. of Cape San Lucas, Lower California. (Dr. G. Baur.) [U. S. N. M.] This is an extremely interesting short-winged form of the rather widely spread S. vaga, immediately distinguishable by the short tegmina and wings which very slightly surpass the tips of the caudal femora. The typical series of five, one male and four females, has been immersed in a liquid preservative and in consequence the coloration and to a certain extent minor structural characters can hardly be considered to furnish diagnostic characters. 1913.] NATURAL SCIENCES OF PHILADELPHIA. HI On comparison with a series of vaga from a number of localities, the Clarion Island series is seen to be practically identical except for the short tegmina and wings. In view of the uniformity of this character in all of the five specimens, we deem it best to con- sider the Clarion Island form at least a geographic subspecies, limited as far as known to Clarion Island. It is quite curious to note that typical vaga is found on Guadelupe Island off the west coast of Lower California, in fact, that island was one of the original localities, and from the measurements given by Scudder it will be seen that the specimens were of the normal long-winged type. The distance of Guadelupe Island from the nearest portion of the mainland, i.e., Lower California, is about one hundred and seventy miles, while Clarion Island is about four hundred and thirty- five miles from Cape San Lucas, the nearest mainland point. The difference in chstance may possibly account for the difference in wing length by the hypothesis that vaga regularly flies to and fro between Guadelupe Island and the mainland, and the resident brood is recruited by new arrivals and produces, through the in- fluence of new blood and the presence thereby of a comparatively active migratory influence, generations in which the wings are very powerful. On the other hand. Clarion Island was probably colon- ized by stray migrants, and from these has evolved a short-winged type through isolation and lack of use for the wings except in a restricted area. While we are unaware of the presence of S. vaga on the Revillagegedo Islands, the species, and possibly subspecies, may occur there, the nearest one of the group, Roca Partida, being one hundred and forty miles distant from Clarion Island. The measurements of the types of Schistocerca vaga hrevis are as follows : d^ 9 Length of body 30.5 mm. 43 mm. Length of pronotum 7 " 9.5 Length of tegmen 24.5 " 33.5 Length of caudal femur 19.2 " 24.5 " Schistocerca sequalis Scudder. 1899. Schistocerca fequalh Scudder. Proc. Amer. Acad. Arts and Sci., XXXIV, p. 458. [Demerara, British Guiana.] Caracas, Venezuela. (Dr. A. Ernst.) [U. S. N. M.] One 9 . This species is quite difficult to distinguish in the female sex from the allied S. desiUens Scudder, but the color of the caudal tibiae, i.e., varying shades of glaucous in cequalis and reddish in desiUens, appears to be a convenient character by which to separate specimens. 112 PROCEEDINGS OF THE ACADEMY OF [March, In the male sex the form of the cerei, tapering and very narrowly rounded in desiliens and subequal and subtruncate in wqualis, is a fairly satisfactory clue to the species. The cerci in the three males available for study have the apical angular emargination described by Scudder extrememly slight and hardly perceptible. Six individuals, three of each sex, have been examined, those in addition to . the Caracas specimen being from Demerara and Bartica, British Guiana. Schistocerca peregrina (Olivier). 1804. Acridimn peregrinum Olivier, Voyage I'Emp. Othoman, II, p. 425. [Egypt; Arabia; Mesopotamia; Persia.] Venezuela. [U. S. N. M.] One 9 . This specimen has been compared with undoubted specimens of S. peregrina received from the late Dr. Saussure. Schistocerca paranensis Burmeister. 1861. Acridium paranense Burmeister, Reise durch La Plata-Staaten, I, p. 491. [La Plata country; Parand; Entre Rios.] Medellin, Antioquia, Colombia. 1879. (Thos. Herran.) [U. S. N.M.] One cf, two 9 . Caracas, Venezuela. (Dr. A. Ernst.) [U. S. N. M.] Three cf , seven 9 . Berbice, British Guiana. September 6, 1886. (J. J. Quelch.) [U. S. N. M.] Two d^, three 9 . From the specimens recorded above it is evident that this migra- tory and destructive locust is at times present in northern South America, and from data with the Caracas series it seems that it appears in considerable assemblages. Dr. Ernst's remarks are to the effect that the species "invaded" the region "from September, 1882, to January, 1883," and he also states the "flight was to the northeast and at a height of about twenty feet from the ground." There is in this series a very considerable amount of variation in size in individuals of both sexes. A number of specimens of the female sex are no larger than several of the Caracas males. AIDEMONA Brunner. Aidemona azteca (Saussure). Western Colombia. [Hebard Collection.] One 9 . This specimen is not separable from females of the States of San Luis Potosi and Vera Cruz, Mexico. The range of the species is here extended some distance south of the previously known southern limit of the species. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 113 DICHROPLUS Sai. Dichroplus peruvianus Stil. 1878. Plezotettix] (Dichroplus) veruvianns St§,l Bihang till K. Svenska Vet.-Akad. Handl., V, No 9, p. 7. [Peru.] Piches and Perene Valleys, 2,000-3,000 feet, Peru. (Soc. Geog. de Lima.) [U. S. N. M.] Two cf , one 9 . Yungas de la Paz, 1,000 meters, Bolivia. [Hebard Collection.] One cf' and one 9 in coitu, one additional 9 . Dichroplus amoenus (Stai). 1878. Plezotettix] (Dichroplus) amoenus Stai, Bihang till K. Svenska Vet. Akad. Handl., V, No. 9, p. 8. [Peru.J Minas Geraes, Brazil. 1897. [Hebard Collection.] One 9 . This specimen is more greenish than was the case -with the type or types and the tegmina appear more acuminate than originally described. Bruner has recorded this species from Cordoba, Argentina. 114 PROCEEDINGS OF THE ACADEMY OF [March, NORTH BORDER RELATIONS OF THE TRIASSIC IN PENNSYLVANIA. BY EDGAR T. WHERRY, PH.D. The uniform gentle northwest dip of the Triassic Red-beds throughout the greater part of the belt crossing southeastern Pennsylvania has been a subject of comment since the earliest days of study of the region. Henry D. Rogers, in his final report,^ cleverly suggested that it was due to inclined deposition, from northward-flowing waters, such as can be observed in present-day river deltas. The inadequacy of this explanation is made apparent, however, by the evident level-surface origin of the fossil footprints and rain-drop impressions which have since been found, as well as by the fact that in certain places, especially toward the northwest border of the belt, the dips show considerable variations, both in amount and direction. No simple process of uplift and folding, however, can account for the relations observed. The fact that thousands of feet of strata exposed in the southern portion of this belt are totally lacking along its northern edge implies that either profound faulting must have occurred there or that progressive overlap on an extensive scale must have accompanied the deposition of the beds. In the course of the writer's studies of the Triassic, carried on at intervals during the past six years, some evidence bearing on this point has been accumulated.- As shown elsewhere,^ the Triassic of Pennsylvania can be divided into three formations, which from the base upwards are: the Stockton (Norristown) arkosic sandstone and conglomerate, 5,500 feet in maximum thickness, which outcrops along the southern edge of the belt; the Lockatong (Gwynedd) dark shale, which ap- pears as a lens between the other two, 3,500 feet thick at the Dela- 1 Geology of Pennsylvania, II, p. 814, 18.58. - This was presented in abstract at the meeting of the Geological Society of America, December 29, 1911 {Bull. Geol. Soc. Amer., XXIII, 745), and at the meeting of the Academy in conjunction with the Mineralogical and Geological Section, May 21, 1912 {Proceedings, 1912, p. 156), but is now for the first time published in full. 3 Age and Correlation of the '"New Red" or Newark Group in Pennsvlvania, Proc. Acad. Nat. Sci. Phila., 1912, pp. 373-379. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 115 ware River, gradually thinning westward, and dying out in northern Chester County, but reappearing north of Lancaster and repre- sented by 1,000 feet of carbonaceous sandstones at the Susquehanna; and the Brunswick red shale and conglomerate, up to 16,000 feet thick, which lies against the older rocks along the northern bound- ary. Although the evidence is not sufficient for definite correlation, it seems probable that these are roughly equivalent to the Bunter, Lower Keuper, and Upper Keuper of Europe, respectively. The following sections represent two alternative explanations of the structure of the Triassic basin in this region. GENERALIZED STRUCTURE SECTIONS of the TRIAS glC in N PENNSYLVANIA Scale: l,nc/i= 6m,le? +- ^ ^ Pre -Trial. il-l^^^-t^t-tv'/ Section A. Assamir^ A fault Ai The Norfhern Bewndory. FVe-Tnassio Section B. As-JMinin^ Overlap At The Northern Boundor\^- It is believed that Section B most correctly depicts the relation- ships existing through the greater part of the Pennsylvania Triassic area, although in Connecticut and in northern New Jersey sections of the type of A have been thought to accord best with the observed facts. This conclusion is based, first, on studies of the actual contacts exposed along the northern boundary and, second, on certain inferences drawn from features shown by the rocks in other portions of the area. While the northern boundary of the Triassic against the older rocks is usually marked by a slight depression and deeply covered by soil, more or less definite contacts can be seen in at least six places, namely, Monroe on the Delaware; Springtown, Bucks 116 PROCEEDINGS OF THE ACADEMY OF [March, County; Boyertown, Berks County; south of Reading, on the Schuylkill; Cornwall, Lebanon County, and on the west bank of the Susquehanna below New Cumberland. The writer's studies have not been extended southwest of the Susquehanna River, but Mr. George W. Stose, of the U. S. Geological Survey, who has traced the line through the Fairfield Quadrangle, states (private communication) that overlap relations occur there also. The exposures at Monroe, a small village on the west bank of the Delaware River along the Easton-Philadelphia trolley line, nine miles south of the former place, have been studied and described by Dr. H. B. Kiimmel.^ The Brunswick conglomerate appears to overlie a bluish-gray (probably Cambrian) limestone, although the actual contact is covered by talus, and he regards it as probable that overthrust faulting has occurred. There is admittedly no direct evidence of this, but even if it does exist, it must be of very limited extent, and can have no bearing on the relation of the formations as a whole, because the fault-boundary shown in Section A would be of normal type and many thousands of feet in throw. About 500 feet south of the first exposure a ledge of white rock appears at the base of the trolley cut, and is solidly overlain by the Triassic conglomerate. This may represent only a local phase of the Triassic itself, and, if so, has no significance, but it may also possibly be pre-Triassic limestone, in which case the existence of a fault is out of the question. About a mile and a half southeast of Spring-town, Bucks County, five miles southwest of the Delaware, what appears to be a contact is exposed in the bed of a brook. A rounded ledge of a yellowish quartzite similar in all respects to the Cambrian (Hardyston) of the region, at least 12 feet long and 4 feet wide, shows fragments of typical Triassic conglomerate solidly welded to it. It is true that neither rock can be traced to solid connection with the main ex- posures in the vicinity, and the quartzite may not be in place, but it is too large a mass to have been carried far. For some twenty miles southwest of this point nothing that can be regarded as. a definite contact has been discovered, and there are reasons for believing that locally slight faults occur, but at several places in the vicinity of Boyertown, Berks County, overlap re- lations are again shown. As noted by Dr. Spencer,^ along the road '^Ann. Rept. State Geol. N. J., 1897, pp. Ill, 112. 5 Magnetite Deposits of the Cornwall Type in Pennsylvania, Bull. U. S. Ceol. Surv., No. 359, p. 64, 1908. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 117 in the valley of West Swamp Creek, southeast from Bechtelsville, metamorphosed shales — "baked shales which may belong to the Mesozoic" — overlie blue Paleozoic hmestones. The exposure is not a good one, yet there can be no doubt that actual overlap occurs. Additional evidence for this vicinity is furnished by a well record described by DTnvilliers^ as follows: "From the Montgomery county line, at A. Schultz's house, [three miles northeast of Bech- telsville] .... to the north border of the Mesozoic, is a distance of 6,400 feet; the average dip, 30°; calculated thickness of Mesozoic at Schultz's, 3,000 feet; nevertheless, Mr. Schultz's water well struck the limestone floor beneath the Mesozoic at less than 200 feet." The supposed outlying patch of limestone, "left bare by the denudation of the thin covering of red shale" (ibid., p. 205) appears, however, to be a calcareous conglomerate bed in the Triassic itself. In the extensive Boj^ertown iron mines the limestones bearing the ore were everywhere found to underlie the Triassic beds.^ Continuing southwestward twelve miles, there is again evidence of the existence of a local fault, as pointed out by the writer elsewhere,^- but in a trolley cut about a mile from the Schuylkill River an appar- ent overlap is poorly exposed, and then at the Big Dam, northwest of Neversink Station, is the erosion contact described by Rogers.^ Here a fissure in the limestone into which pebbles of the conglomer- ate had been washed was formerly exposed. At present the quarry shows conglomerate composed of but slightly rounded limestone pebbles cemented together by a minimum quantity of red mud resting on a somewhat brecciated limestone, into the cracks of which more or less red mud has percolated, so that it requires very close examination to make out the real contact. In the old iron mine on Fritz's Island, around the bend in the river, and at the Wheat- field mine, seven miles to the west, ore-bearing limestone and sand- stone were found l^eneath the Triassic beds as at Boyertown.i° At the great Cornwall iron mine, in Lebanon County, twenty miles further west, Triassic conglomerate overlies, on the south ® Geology of the South Mountain Belt of Berks County, Second Penna. Geol. Surv. RepL D3, II, pt. 1, p. 200, 1883. 'Spencer, op. cit., pp. 43-60. ^ Contributions to the Mineralogy of the Newark Group in Pennsylyania, Trans. Wagner Free Inst. Science, Phila., VII, pp. 1-23, 1910. 3 Geology of Pennsylvania., II, p. 681, and fig. 568, 1858. loD'Inyilhers, op. cit., pp. 336, 337, and 346. 118 PROCEEDINGS OF THE ACADEMY OF [March, side, the Paleozoic strata bearing the ore/^ and, since diamond drilling has shown that ore extends well under this cover, the Middle Hill workings are now being extended in that direction. Spencers- discussed the probability of there having been progressive overlap here, and published several cross-sections exhibiting this relation. The last exposure of this contact found by the writer is twenty miles west of Cornwall, on the west bank of the Susquehanna River, one and a half miles below the town of New Cumberland. Here, in the Northern Central Railroad cut, the Triassic conglomerate is in solid contact with the limestone, and specimens sho\ving a ''welding" of the two were secured. The plane of contact here slopes more steeply than usual, perhaps 45° to the south, while the conglomerate beds dip about 20° northward. It thus appears that all along the line through Pennsylvania the highest beds of the Triassic, usually coarse-grained conglomer- ates, overlap upon the older rocks — limestones, quartzites, and gneisses. The few faults which can be recognized are too limited in extent to have any bearing on the question as to the position of the beds as a whole. That the several formations of the Triassic were not deposited regularly and evenly on top of one another can also be inferred from the observed lack of anything like metamorphism — cementation, induration, crystallization — of the lowermost (Stockton) beds. Had these ever been buried beneath the whole 20,000 feet of the two overlying formations, the temperature would necessarily have been raised so high and opportunities for chemical action have become so great, that some changes would surely have been pro- duced. Again, the Stockton is known to thin rapidly northward. Its thickness along the southern edge of the belt, toward the eastern end, is as great as 5,500 feet, but where brought to the surface by the Buckingham Mountain fault (the Flemington fault of New Jersey), ten miles further north, it is only about 2,000 feet. It is therefore believed that in the portion of the Triassic basin crossing eastern Pennsylvania the locus of deposition of the beds was gradually shifted northward during the course of the period, so that the successive formations overlapped more and more to the north, the basin being deepened by down-warping rather than by faulting, as brought out by Section B. 11 Lesley and D'Invilliers, Ann. Rept. Second Penna. Geol. Sun\, 1885, pp. 491-570. '■-Op. cit., pp. 20, 21, pi. III. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 119 It has several times been mentioned above that the uppermost beds of the Triassic are, in general, conglomerates. But as this term may cover rocks of quite a variety of characters and origins, it seems worth while to describe them more definitelj'. For this purpose those developed along the northern boundary for twentj^ miles westward from the Delaware River have been selected, since they are believed to be typical of the formation, and since, by reason of their accessibility, it has been found possible to study them in the greatest detail. The most striking feature of the Triassic area in northern Bucks and southern Northampton and Lehigh Counties is the occurrence of rather prominent hills, the highest attaining 980 feet above tide, or 500 feet above the usual level of the red-shale region, and ex- ceeding those formed by both the diabase and gneiss, usually regarded as the. most resistant of rocks, in the immediate vicinity. On these hills, in spite of deep dissection and frequent steep slopes, very few exposures of rock in place are found, although the soil is strewn with boulders and pebbles of pink-stained quartzite. This material has been previously interpreted in three ways, as Cambrian (Chickies or Hardyston), Ordovician (Shawangunk or Green Pond), and metamorphosed Triassic. The present view of the matter is that, while the quartzite of the pebbles is actually of the second of these ages, the pebl^les themselves are not of recent origin, but have weathered out of a conglomerate belonging to the ordinary, unmetamorphosed Triassic series. This conclusion has been reached as follows: At a few places along the hill slopes and at two localities where prospecting for copper has been carried on, the rock can be seen in pl'ace. It consists of a soft red mud ground mass in which are imbedded pebbles of all sizes up to two feet in diameter, but mostly around three inches, rudely but evidently assorted and stratified. The largest and most thoroughly rounded of these consist of a gray to pink quartzite, often in itself conglomeratic — containing white quartz grains up to half an inch across, and occasional flakes of graj^ slate. These quartzite pebbles are usually stained deep red by a film of hematite, which penetrates the cracks and spreads out around them in rounded, imperfectly dendritic patches. At the copper prospects above mentioned thej-also show abundant malachite stains, which in at least one specimen seemed to be derived by weathering of a copper sulfide originally imbedded in the quartzite itself, but now leached out, leaving tiny holes. 120 PROCEEDINGS OF THE ACADEMY OF [March, Lithologically, this quartzite is in every way identical with the Shawangunk, which forms Blue Mountain twenty miles away to the north, and with the Green Pond conglomerate of the same age, occurring in the highlands of northern New Jersey. Not only does this similarity cover the general features of the rock, but it extends down to such small details as the extent of the silicification visible under the microscope, the inclusion of the gray slate flakes, and the occasional presence of copper sulfides (chalcocite?) in minute disseminated grains, just as occurs at the Pahaquarry copper mine on Blue Mountain, eight miles northeast of the Delaware Water Gap. And since there is no other formation anywhere in the region of at all similar lithologic character, there w^ould seem to be no reasonable doubt as to the correctness of this interpretation. In addition to these quartzite pebbles, limestone fragments are often present in the conglomerates, locally forming almost the only constituent of the rock. These are usually less well rounded than the quartzite, and, in fact, are often so angular that the rock should be termed a breccia. When exposed to atmospheric agencies they have usually weathered out, leaving a peculiar-looking cellular rock. Nothing has been observed to indicate that these limestone pebbles are of different type from the Paleozoic (Cambrian and Lower Ordovician) strata exposed in the valleys to the north; in fact, streaks of the black chert so frequently present in these beds have been noted in some of the pebbles. Along with the limestone peb- bles are also abundant flakes of a greenish schistose material, which resembles the sericite partings developed in the limestones in many places, occasional beds of the conglomerate being made up of nothing but overlapping chips of this schist. Again in some places, gneiss pebbles are present in considerable numbers, several of the types now exposed in the hills to the north being represented. These, like the limestone fragments, are only imperfectly rounded, and they have also weathered on the surface to some extent, although perfectly fresh when seen in recent artificial exposures, as along the trolley line south of Monroe, on the Dela- ware River. On descending the hill slopes it is found that the pebbles in the soil become gradually fewer in number, and finally give way to frost-shattered shale fragments, as roughly indicated on the map by the small circles. There is practically no decrease in the sizes of the pebbles going outward from the centers of the hills, and absolutely nothing like a gradation from the conglomerates 1913.] NATURAL SCIENCES OF PHILADELPHIA. 121 through finer and finer sandstones to the ordinary Brunswick shales. The same red sandy mud makes up the bulk of both rocks, the pebbles having simply been dropped into it while still soft. Similar rela- tions appear in four distinct areas, all of the same general type, although the shape of outcrop is modified by diabase intrusions and local variations in the dip of the usually practically horizontal beds. That these conglomerates have been deposited chiefly under water is shown by the stratification and assorting of the pebbles, rough though it may be, and by the occurrence of interbedded thin lami- nated shales, which show such features as ripple marks and rill marks. That the water was fresh is indicated by the absence of marine fossils, and perhaps by the red color of the mud. The source, mode of transportation, and of deposition of the pebbles remain to be considered. Three possibilities at once suggest themselves: we may be dealing with either talus broken from cliffs by wave or frost action, alluvial fans, or glacial moraines. The first view, that the pebbles are talus blocks, was accepted by Dr. KiimmeP^ in the New Jersey area. This conclusion is, however, quite inapplicable in the present localities, for it is very evident that the nature of the pebbles bears in general no relation to the character of the rock against which the conglomerate lies. Dr. Kiimmel had observed the same thing, and explained it as due to faulting, but, as shown above, this does not occur in the present region. Gneiss pebbles are found most abundantly at Momoe, where the floor is limestone, and limestone pebbles west of Coopersburg, where the underlying rock is gneiss. Indeed, there is now no outcrop of Shawangunk quartzite, such as forms the majority of the pebbles, within twenty miles (although, of course, it may have extended somewhat farther south in Triassic times). Further, the fact that the limestone :s less rounded than the much harder quartzite is just the opposite of what would be ob- served in talus heaps rounded by wave action, but can be explained according to the principle that the degree of rounding increases with the distance of transportation, for the limestone rocks from which the pebbles may have been derived outcrop nearly everywhere within a mile or two of the edge of the basin. The application of the criteria for the recognition of alluvial- " Ann. Rept. State Geologist of N. J., 1897, pp. 52-58. 122 PROCEEDINGS OF THE ACADEMY OF [March, fan deposits, as recently summed up by Trowbridge," to the present occurrences shows the improbability of their having had such an origin; the majority of the pebbles are too well rounded and as- sorted. In fact, the stratification is quite definite, and the pebbles have apparently been transported and deposited by some agent which did not disturb the soft red mud now forming the cement of the conglomerate. The possible glacial-moraine origin of similar Triassic conglomer- ate deposits in other regions has been advanced, in some form or other, by various writers. W. M. Fontaine^^ discussed it elaborately and found no difficulty in reconciling the (supposed) deposition of the bulk of the strata in a ''mild, equable and moist climate" in the lovi^lands, with the collection of "unUmited supplies of snow" and ''its discharge in the form of glaciers" on the "lofty mountain belt of the Appalachians." And many others had come to agree \vith this view. I. C. Russell, ^^ after reviewing the evidence, stated that " the absence of glacial records seems to warrant the conclusion that glaciers did not enter the basins in which the Newark rocks were deposited. It does not follow, however, that the Appalachians were not occupied by local glaciers. The suggestion that those mountains were higher in the Newark period than now and were covered with perennial snow, while the adjacent lowlands enjoyed a mild climate, seems an attractive and very possible hypothesis, but definite evidence as to its verity has not been obtained. The proof that the climate of the Atlantic slope during the Newark period resembled that of Italy at the present day, with glaciers on the neighboring mountains, must be looked for in the drainage and sculpturing of the mountains, and the character and distribution of the debris washed from them. A period of long decay preceding the birth of the Appalachian glaciers would have prepared land to furnish abundant debris when the faciUties for transportation were augmented." In late years the idea that the red color of sediments is connected with their deposition in more or less arid climates, has gradually been gaining ground, and as other evidence appeared to favor " The Terrestrial Deposits of Owens Valley, California, Jour. Geol., XIX, 706-747, 1911. '^ Notes on the Mesozoic strata of Virginia, Amer. Jour. Sci., [3] XVII, pp. 236, 237, 1879. 1^ Correlation papers — The Newark System, Bull. U. S. Geol. Surv. No. 85, pp. 50-53, 1892. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 123 such a view of the orighi of the bulk of the Triassic/^ Russell's ''attractive and very possible hypothesis" of glaciation of the Appalachian Mountains in that period has been practically forgotten. It is the writer's belief, however, that "the character and distribu- tion of the debris" forming the conglomerate beds under discussion constitutes a verj^ good argument for its revival. That the pebbles and boulders were carried down into the Triassic basin along certain definite channels is clearly indicated by the shapes and positions of the conglomerate masses. Something, in fact, can be made out as to the possible routes along which they came. In this region at present the position of streams is controlled to a certain extent by fault or joint systems. Since most of these structural features are, however, evidently pre-Triassic, it is reason- able to suppose that similar depressions existed there then and became at times river channels. It can readily be seen on the map that stream routes (marked by heavj^ dotted lines) do actually strike the edge of the Triassic belt at or near the centers of the several conglomerate masses, although of course changes of geography since that period have altered the actual direction of the drainage and superficial features. But the boulders in the conglomerates are too large to have been carried by any streams flowing in these channels at the present day and, indeed, as shown above, torrential alluvial-fan origin is improbable. Russell's arguments against a direct glacial origin being also valid, as far as all later observations go, apparently only one possible mode of formation remains — trans- portation by floating ice. Evidence favoring this view has been unexpectedly obtained in the course of field work to the southwest of HellertowTi. The Saucon Valley, a broad limestone plain which lies to the north of the Triassic highland here, contains extensive deposits of what is regarded as extra-morainic drift. It is believed that in late Quater- nary glacial times the Lehigh River was temporarily dammed back and formed a lake— locally called Lake Packer — whose surface reached a height of 450 feet above tide, and which therefore spread over much of Saucon Valley. Floating ice, breaking off from the front of the great glacier, which extended on the Lehigh only to White Haven, over fifty miles north of the present region, came down stream, and some of it was carried by currents around into the Saucon Valley Bay. As this ice gradually melted, numerous well- 1- Cf. Lull, R. S., The Life of the Connecticut Trias, Amer. Jour. ScL, [4] XXXIII, pp. 397-422, 1912, and the writer, Proc. Acad. Nat. Sci. Phila., 1912, pp. 371, 372. 124 PROCEEDINGS OF THE ACADEMY OF [March^ rounded pebbles and boulders of various Paleozoic rocks, chiefly quartzites, derived from the mountains to the north, were deposited in a rudely stratified sheet over the valley floor in sufficient quantity to almost completely cover the underlying limestone rock.^* At the south side of the valley such drift extends just up to the Triassic contact, and many of the drift boulders are essentially similar in size, shape, and degree of rounding to those weathered from the Triassic conglomerate, and in fact can only be distinguished by the color, which is yellow or brown instead of red. If there were in Triassic times glaciers in the mountains, they must have formed terminal moraines, and drift from these would naturally be occasionally transported on cakes of ice do'v\Ti the streams issuing from the glaciers, and be dropped whenever this ice melted. Some could not fail to be carried out into the shallow lakes or ponds in which the Triassic red muds were being deposited, and would then be dropped into this mud without disturbing its stratification, as we actually find to be the case. Again, as the distance out from the margin of the basin to which the pebbles would be carried have nothing to do with their size, but only with the size of the ice blocks and the resulting rate of melting, they should simply become fewer in numbers, rather than less in size, toward the center of the basin. As noted above, this is exactly what does occur. It is not intended to imply that all of the materials of these conglomerates had this origin. The smaller, subangular limestone and gneiss pebbles and the green shale-flakes were, no doubt, car- ried largely by direct stream action. But the writer feels convinced that the features shown by the great mass of quartzite boulders constitute a good indication of the correctness of Fontaine's and Russell's theory that glaciers existed in the Appalachian Moun- tains during late Triassic times. Summary. The shape of outcrop and structure of the three subdivisions of the Pennsylvania Triassic implies either a profound fault on the north side of the basin or progressive overlap in that direction on an extensive scale. The latter view is shown to be the most satis- factory one in this region. The conglomerates developed along ^^ Williams, E. H., Extra-morainic drift between the Delaware and the Schuyl- kill, Bull. Geol. Soc. Amer., V, 281-296, 1894. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 125 the north border are found to show features which suggest the transportation of a considerable part of their materials by ice floating in streams arising from the melting of glaciers in the Appa- lachian Mountains to the north. Explanation of Plate III. Map of the north border of the Triassic in Bucks, Northampton and Lehigh Counties, Pennsylvania, showing distribution of the border conglomerates and hypothetical stream channels of Triassic times. 126 PROCEEDINGS OF THE ACADEMY OF [March, A STUDY OF METAZOAN PARASITES FOUND IN THE PHILADELPHIA ZOOLOGICAL GARDENS. BY FRED. D. WEIDMAN, M.D. The first part of this communication deals with certain statistics regarding all the parasitic worms found in the Gardens; the second, \nth separate species which have been of economic, scientific, or passing interest. Part I. The statistics which follow have been compiled from autopsy protocols at the Laboratory of Comparative Pathology of the Phila- delphia Zoological Gardens. The autopsies number 2,807, and ex- tend from November 25, 1901, to January 1, 1913. They were performed with care, especially those on the larger animals. All mammalia and aves dying were examined. Only a few of the reptilia received attention. The organs were not extensively dissected or examined microscopically. They were closely scru- tinized grossly, and if occasion warranted microscopical sections were made. For these reasons many of the smallest parasites have been missed, and this may explain the small number of flukes appearing in our tables. The table opposite shows roughly an average of (excluding 1901- 1905, when the parasites were not especially searched for) 45 infestations per year. In 1910 there was a rise due to cestodes in birds, and again a rise in 1911 which we trace across to nematodes- — again in birds. Referring to the General Parasitological Table II, nematode column, we find that of the aves it is the Psittaci and Passeres which are responsible for the latter rise. Our detailed Psittaci records now lead us to a certain worm, Spiroptera incerta. This worm was apprehended, however, long before these tables were compiled. This table led us to investigate the Passeres which show 33 nematodes. A coiled Filaria in the serosa of the proven- tricle was revealed. We propose to investigate it in the near future It is probably Filaria pnngens. Table I is more of local than general scientific value. It shows the incidence of parasites by years, and enables us to trace to its source an}' special increase of infestation that may occur in the Gardens. 1913. NATURAL SCIENCES OF PHILADELPHIA. 127 General Parasitological Table I. Showing Infestation by All Parasites by Years. Nema- todes. Acantho- cephalus. Ces- Trema- Unclas- I rp , , todes. todes. ! sified. ^°*^'- 1901-1904: Mammalia.. Reptilia Aves Total 1905: Mammalia.. Reptilia Aves Total 1906: Mammalia.. Reptilia Aves Total 1907: Mammalia.. Reptilia Aves Total 1908: Mammalia.. Reptilia Aves Total 1909: Mammalia.. Reptilia Aves Total 1910: Mammalia.. Reptilia Aves Total 1911: Mammalia... Reptilia Aves Total 1912: Mammalia... Reptilia Aves Total 11 2 9 — 22 12 1 21 — .34 4 3 26 3.3 34 39 14 — 32 12 2 .50 — 64 37 301 12 10 23 93 — 2 12 9 1 -15 — 1 23 52 42 46 46 47 ■ 57 81 53 3a 435 1 The years referred to are tte fiscal years of the Gardens ending March 1, except the last— 1912— which we have made to end on January 1, 1913. 128 PROCEEDINGS OF THE ACADEMY OF [March, General Parasitological Table II. Showing Avian Orders Affected. Aves. Nema- todes. Acantho- cephalus. Trema- todes. Ces- todes. Unclas- sified. Total. Alectorides Columbse PicariEe Gavise Steganopodes... Fulicarise Strio'es 1 6 6 1 1 1 114 16 6 ■ 6 1 33 2 ""2 "'"5 2 2 '"'2 2 3 5 '25 "3 1 2 2 1 1 ....^ 1 8 9 1 1 6 2 Psittaci Herodiones Galli 118 25 10 8 6 Limicolse Passeres 1 65 Total 193 2 7 41 18 261 General Parasitological Table III. Showing Mammalian Orders Affected. Mammalia. Nema- todes. Acantho- cephalus Trema- todes. Ces- todes. Unclas- sified. Total. Primates Lemures 18 3 1 3 21 11 8 4 ■"2 2 3 1 23 6 Carnivora Ungulata 41 8 6 21 1 65 21 17 Marsupialia Edentata Hyraces i 3 1 1 i 1 25 2 1 Total 9S 1 49 12 160 Table III shows that of mammals the Carnivora are by far the most heavily infested order. Primates, Ungulata, and Marsupialia are about even for second place. General Parasitological Table IV. Showing Reptilia Affected. Nema- todes. Acantho- cephalus Trema- todes. Ces- todes. Unclas- sified. Total. Reptilia 10 1 3 14 The data on reptiles are not of value on account of the small numbers, but are included here for the sake of record. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 129" General Parasitological Table Summary. V. 1 Nema- todes. Acantho- Trema- cephahis. todes. Ges- . todes. Unclas- sified. Total. Mammalia Aves Reptilia .,.; 98 ... 193 10 1 49 41 12 18 160 261 14 Totals........ ...1 301 2 9 93 30 435 The summary shows, as to the relative numbers of worms, that nematodes are far the commonest; then come the cestodes, flukes, and Acanthocephali in order named. This is the usual order given in text-books. It seems, however, that our summary shows too great a disproportion between the nematodes and cestodes, due doubtless to the endemic of nematode Spiroptera in the parrots. Excluding those, a ratio of two nematodes to one cestode is obtained. This would appear to express about the proper relationship, which now holds good in both birds and mammals. Tables have also been made shoeing the location of the parasites in the different mammalian and avian orders, and in reptiles, as follows : General Parasitological Table VI. Site of Infestation. Aves. 4 s a -J3 o 1 c3 i 1 a bb c 1 c :3 a; 1 1 a W CL, c o o h-) hJ < uC Ph m Alectorides ' |.... Columbffi j I.... PicariJB [.... Gavise L. Steganopodes ' 1 Fulicarise Striges Psittaci 109 Herodiones Galli Anseres Accipitres LimicoljE 2 2 2 1 9 1 1 2 9 10 9 1 1 6 2 118 27 10 8 7 1 Totals 1 1 !l49; 6 63 1 ! 1 1 14 13 267 Six duplications, i.e., more than one parasite found in different organs of same bird. 9 130 PROCEEDINGS OF THE ACADEMY OF General Parasitological Table VII, [March, Mammalia. 6 i ! 02 i s -2 1 1 i 1 1 1 a 1 a 1 s 1 i 5 1 1 ,4 Primates 5 3 47 8 11 6 2 3 I 2 2 1 2 3 2 1 1 10 1 1 1 94 Lemures 1 3 Carnivora 6 1 1 ' 1 fiS Ungulata Rodentia 2 1 1 1 i 7 3 1 1 1 '>'> 17 Marsupialia 18 1 1 1.. ?7 Edentata . ■::::::j:::::: 9 Hyraces 1 ! 1 1 1 1 1 Ill Totals 82 33 9 17 4 5 1 2 1 21jl .\. 1 1 1 172 Twelve duplications. General Parasitological Table VIII. Intes- tine. Stomach Lungs. Cloaca. Perito- neum. Total. Reptilia 8 2 3 1 1 15 One duplication. General Parasitological Table IX. Summary of Location of Parasites. ^ 4 a .a r/,- ^^ 1 a 1 1 > i 1 i 1 1 .1 1 1 ^ a 1 o 82 K 33 9 2 21 1 1 1 1 5 1 9 3 Reptilia Aves 1 63 149 1 9 14 1 1 5 1 2 1 1 * Totals 153 35 149 1 2 9 36 ' 1 1 1 10 1 14 1 2 Number of duplications, 19. 1913. NATURAL SCIENCES OF PHILAt)ELPHIA. 131 Not given. Pericar- dium. Giz- zard. Blood. Skin. Mus- cles. Pan- creas. Total. Mammalia .. Reptilia Aves 1 2 i ' 4 ;■.,:■ 6 : "13 i 7 2 172 15 267 Totals 1 2 6 17 1 7 2 454 111 the summary, Table IX, the accepted predommance of in- testinal parasites is shown. The next most frequently affected organ is the stomach. The peritoneum comes next, due to the presence of Filarise, which also account for the fourth position of the blood. Part II. Spiroptera incerta (Smith). This worm has been encountered 119 times, as follows: Table X. Parrots Blue-headed Pigeons Ashy-headed Barbet Banded Toucan . Green glossy Starling Sulphur-breasted Toucan Barbary Turtle Dove White-crowned Pigeon White-throated (^uail Transvaal Barbet Himalayan Jay... Double-striped Thicknce Natal Francolin.. Larger hill Mynah 102 3 1 2 1 2 1 1 1 1 1 1 1 1 119 Since the greatest number occurred in parrots, our attention has been especially called to those birds. In fact, our work on this parasite of parrots has constituted bj^ far the greatest part of our studies in metazoan parasitology" at the Gardens. The appended table shows the exact findings since March 1, 1906: 132 PROCEfiDINGS OF THE ACADEMY OF []\Iarch, Spiroptera Table XL Deaths from Spiroptera among Psittaci. Year ending. Verminous. Not verminous. Total Per cent. ! Total number from all dying with of Psittaci in causes. I worms, i collection. Mar. 1, 1906 3 Mar. 1, 1907 16 Mar. 1, 1908 17 Mar. 1, 1909 20 Mar. 1, 1910 10 Mar. 1, 1911 12 Mar. 1, 1912 24 Jan. 1, 1913 11 Total 113 45 48 6 29 45 . 6 36 53 32 16 36 56 30 40 25 29 41 29 57 81 30 26 37 36 Not obtainable 132 139 137 268 381 30 408 As will be noted, an average of 30 per cent, of all parrots coming to autopsy harbored these worms. Is it the parasite which has caused death, or is this simply an example of commensalism which is so common in the lower animals? We find (consulting our Table XI) that the percentage of birds dying with worms is fairly constant, except for the year ending 1909, and excluding 1906 when the cases were beginning to be recognized. This wouM indicate at first sight that the verminous cases were only incidents, that 30 per cent, of our birds had harmless worms which appeared at autopsy when the bird died from inter- current disease. To throw further light on the subject a curve was prepared showing deaths of Psittaci by months. Again there is a rough parallellism between the curves of verminous and non-verminous birds. The charts then would exculpate the parasite. Now let us consider the opposed evidence. It will be brought out later that we have examined every parrot in the parrot-house and found 14 per cent, of our living parrots verminous. What does this mean? Correlating"^this finding with our statistics, we have established two facts: (1) 14 per cent, of our living parrots are verminous. (2) 30 per cent, of all parrots dying in a year are found verminous. See Spiroptera, Table XI. A greater percentage (in fact, proportionally twice as many) of our verminous birds die as do non-verminous. To consider a specific instance, suppose our bird-house contain 140 live parrots — 1913.] NATURAL SCIENCES OF PHILADELPHIA. 133 A. From (1) above, 14 per cent, of our living parrots would be verminous, 20 birds. B. 86 per cent, of our living parrots would be non-verminous, 120 birds. Suppose at the end of the year there had been 50 deaths (average for 7 years). C. From (2) above, 30 per cent, would be verminous, 15 birds. D. Then 70 per cent, would be non-verminous, 35 birds. From A and C — Out of 20 living verminous birds 15 deaths re- sulted, 75 per cent. From B and D — Out of 120 living non-verminous birds 35 deaths resulted, 30 per cent. The mortality is more than twice as great for living verminous parrots than for non-verminous. This is one point against the innocence of Spiroptera incerta. Our second witness is the autopsy picture. The Parasite. — It has been described in detail by Dr. Allen J. Smith as a new species in his Sytwpsis of Studies in Metazoan Para- sitology. Briefly, the mature female averages 14 mm. in length by 0.6 mm. in diameter. It is rigid, of a dead or yellow-white color. The male is distinctly smaller. They vary in numbers from two to a hundred or more. The usual number is twenty or thirty. They may be found in a ball of mucus in the lumen of the pro- ventricle or burrowing into the mucosa. The smallest (larval) forms are often found under the thick chitinous lining of the gizzard. The Host.— In severe infestations the bird is emaciated. It sometimes emits a wheezing sound (not pneumonia) or passes mucus from mouth or nostril. Often the droppings have been abnormally copious, and when mucus is admixed (as it often is) infestation has been foretold. The Lesion. — Even where there are but a few worms (4-6) in the proventricle, the swelling is prominent. Diagnosis can be made as soon as the body cavity is opened. On opening the organ the mucosa is found necrotic and overlaid by mucus. The worms, if pulled out by forceps and relaid on the mucus promptly burrow into it and disappear. Where the worms are numerous the viscus is enormously distended, even exceeding the gizzard in size. The heart is pushed far to the right, the gizzard placed so low as to press on the cloaca. In one case a perforation had occurred, and seeds and worms were found in the air sacs. On section the mucosa is necrotic, destroyed. The wall of the viscus may be so thin as to be translucent. The 134 PKOCEEDINGS OF THE ACADEMY OF []\Iarch, lumen is occluded by the necrotic and mucoid debris. Microscopic- ally the mucosa is in part or wholly necrotic and the parasite may be found burrowing even close to the muscularis. The only reactive inflammation seen is around the nerves, where a round-cell infil- tration sometimes occurs. Necrogenesis. — From the clinical and postmortem findings it would seem that a variety of agencies are operative in causing death. Where the parasites are in small numbers in a large bird they are probably not the cause of death. Occlusion of the proventricular lumen probably plays a minor part by retarding food ingestion. Much more important is the destruction of the mucosa of this (for birds) important digestive organ. In fact, it has been called the glandular stomach in contradistinction to the muscular stomach or gizzard. This probably accounts for the emaciation seen clinically. Theo- retically, this worm might elaborate a toxic material, as does the fish tapeworm of man, which may act as an irritant on im- portant vital organs. Such irritation was seen in a chronic form around nerves in one of our microscopic sections. Dis- placements of organs noted above (heart by pressure, gizzard by weight of superjacent pro ventricle) could easily contribute to the end. It is our belief at present that only a part of the cases listed as verminous died as a result of spiropteriasis : that the cases showing a few worms and not much tissue destruction died from inter- current diseases, but that others, those so greatly emaciated, with occluded lumina, pressure upon the heart and destruction of mucosa, undoubtedly diqd as a result of the presence of these worms. Our autopsy shows alterations of important structures, extensive enough and serious enough to incriminate the parasites in spite of the evidence of our tables and charts. This fact, considered with Spiroptera Table XI, shows the worm to be of economic importance. In studying this endemic we have worked along three lines: I. To devise a practical method whereby infested birds might be discovered and isolated. II. To determine the life history of the worm. This is most important from a hygienic and prophylactic standpoint. III. To discover a therapeutic agent. Diagnosis. We feel that we have been successful in our first task. The external appearances were never sufficiently characteristic to lead to exact diagnosis. Some birds, even though passing enormous 1913.] NATURAL SCIENCES OF PHILADELPHIA. 135 numbers of ova, were in good feather. Others showed symptoms like any sick bird — feathers ruffled, head hung down, eyes closed. Several cases, however, showed suggestive symptoms. They extended the neck as though attempting to vomit. A macaw passed a frothy material from the mouth. Another bird which did not have pneu- monia emitted a wheezing sound. Some of the birds produced droppings in larger quantity than their mates, and where these contained mucus, as they often do, we have foretold infestation. But these signs were so inconstant that laboratory chagnosis became necessary. The only avenues to diagnosis would seem to be the blood, urine, droppings, stomach contents, and temperature. Some time has been spent investigating the blood, but so many technical difficulties arose and so much time was required that this means was abandoned. Experiments were also performed toward the production of emesis and the recovery of the worms in the vomitus. Preliminary experi- ments on pigeons were successful. One-tenth of a grain of apomor- phine hypodermically caused regurgitation of food. This was probably only from the crop, as no stones accompanied the grain. An amazon received one-fifth of a grain of apomorphine hypo- dermically. Excited talking, laughter, and some dizziness resulted, but no emesis. An attempt was then made to draw out the proventricular con- tents mechanically. This failed, as a small catheter used as a stom- ach-tube could be introduced only as far as the crop, as demonstrated upon a dead parrot. The urine is evidently useless for diagnosis when we consider the anatomy of the avian excretory apparatus. Temperature determinations would require manipulations which the smaller birds could not stand. The droppings remain as our sole means of diagnosis. The parasitic ova are not easily found. The excreta of birds contain more waste than human dejecta, where everything is generally in a finely granular condition. The droppings are laden with such quantities of vegetable cells, colored by chlorophyl, that they quite hide the ova unless the latter are in such great numbers as not to be lost by high dilutions. Efforts to dissolve this foreign matter have been ineffectual. It was not digested by pancreatin overnight in an incubator. Boil- ing with antiformin, while ineffective, broke up the cloddy particles of the droppings, clarified the vegetable cells, and dissolved the mucus and urates. Much of the chlorophyl was extracted. Our 136 PROCEEDINGS OF THE ACADEMY OF [March, routine practice is now to boil droppings for five minutes in 10 per cent, potassium hydroxide, shake one minute, boil three minutes, centrifuge for one minute. Two portions of the sediment are examined for ova under the f lens, one from the surface and one from the bottom. The preparation of each specimen examined in lots of ten requires five minutes. The examination under the lens requires ten minutes , where no ova are present. When present they are detected usually in less than one minute, although one case was diagnosed only after eight minutes. The total time for examining one bird is thus fifteen minutes. A mechanical stage is used and the entire wet specimen is gone over. •With a view to decreasing the amount of debris, the birds have been starved for twelve, in the case of smaller birds, or, in the case of larger ones, twenty-four hours. The droppings are collected during the subsequent twelve hours. That this is a necessary procedure has been shown in subsequent examinations of these same birds where they have not been starved. In every case the eggs are more concentrated where the bird has l:een starved. This was shown practically in the case of a green-cheeked amazon which was passed as not verminous during our preliminary experiments without starving, but detected after starving. Employing the method outhned above (for convenience called "the improved method"), every bird in the parrot-house was exam- ined. The birds were first moved to a separate building. The parrot-house was then thoroughly fumigated with formaldehyde, the cages galvanized and new stands erected. Birds whose drop- pings showed ova were isolated in the infirmary. The others were sent to the parrot-house. Those removed to the infirmary were again examined by improved method without starving, to guard against a possible clerical error by which the specimens might have been mixed. As a result of the examination of all of our parrots, twenty were detected and isolated (14 per cent.). These twenty birds have been used for subsequent experimentation. Some, too, have been kept in an open cage exposed to the weather. For these reasons it is unfair to compare the mortality of these verminous birds with that of the non-verminous at the parrot-house. If such a comparison could be fairly made it would furnish valuable evidence regarding the criminality of the worm, as discussed earlier in this paper. As these birds died they were posted, and in all cases the worms were found in the proventricle. We have found that our technique 1913.] NATURAL SCIENCES OF PHILADELPHIA. 137 is very accurate. Mexican conure (P. Z. G. No. 2,599) showed at autopsy a solitary female and a solitary male worm, yet it was detected, January 31, 1912. Two ova in one slide. We have been particularly gratified by the subsequent showing of the parrot- house. Out of 23 birds dying during the last nine months, not one has shown worms. Life History. — The determination of the life cycle of this worm would be of scientific and prophylactic value. In only one, Spirojj- tera sanguinolenta, has the life cycle been worked out. From a hygienic standpoint, such a determination would be valuable by ascertaining : 1. Mode of transmission from bird to bird. 2. Time elapsing between ingestion of ovum and development of sexually mature female. As long as we have to rely upon finding ova in the droppings, we will not be able to detect those birds ^\ath immature worms. If we can determine the time elapsing between ingestion of egg and maturity of female we will have determined the period of time during which to quarantine new arrivals, who, while not showing ova in droppings, may nevertheless harbor immature worms. The determination of this point would also give us the intervals at which to reexamine the parrots which have been passed as healthy to the parrot -house. In the absence of this knowledge we run a certain risk. Future reexaminations will have to be made at quite ar- bitrary intervals until this developmental period is determined. Now that each inmate of the parrot-house has been examined and passed, any cases developing or dying there with worms will throw new light on the subject. We have inquired into the life history of the worms bj^ trying to grow them in artificial media and in experimental birds. Ova from proventricular slime of a bird dead with Spiroptera were placed in various nutrient media (bouillon, condensation water of blood serum media), tap water, and weak alkaline and acid solu- tions. These were kept at various temperatures. One series at room temperature, another at 37.5°, and a third at the temperature of a bird's body (41°). They were examined daily. On the sixth day larval worms could be seen issuing from the eggs in tap water at room temperature. They did not hatch in the acid solution, but did appear sporadically in the other solutions at room tempera- ture. The larvse may be extruded either through the side or the end of the egg. One wonders how so large a worm could be coiled 138 PROCEEDINGS OF THE ACADEMY OF [March^ in such a small shell. The disappointing factor is the sluggish action of the larva. It is encased in a well-marked sheath and while hatching has a languid swaying motion. When hatched its motion is scarcely more than a quiver. By the time it has been hatched an hour all motion has ceased. Beyond this stage we have seen no development. In 10 to 14 days the worm grows paler, faintly granular and disintegrates. Supposing that some agent was necessary to dissolve the sheath and liberate the larva, weak solutions of HCL and sodium bicar- bonate were applied, but to no avail. At the suggestion of Dr. Fox,, an emulsion of parrots' proventricular mucosa was made and applied to the embryos. There was no development at room or incubator temperature. The ova in the preceding experiments came from proventricular slime and had not received the action of the bird's intestinal canal. As soon as a bird was found with great numbers of fecal ova, they were washed out and the above experiments repeated in graded acids and alkalis, diluted pigeon serum, and tap water at room temperature and 41° C. The same results have been secured: they hatch best in tap water and serum at room temperature. The most rapid hatching occurred in a corked vial of tap water at room temperature in which a female had been placed to deposit her eggs for subsequent experiments. Four days later she was found ruptured, her egg tubes protruding and also ruptured. In them were worms in all stages of hatching. Animal Experimentation. Three modes of transmission would seem to be possible: 1. Passage of egg into drinking water, and direct entrance of the egg to the host, as in the case of the common pinworm, Oxyuris vermicularis. This is the simplest possible cycle. 2. Passage into drinking water, a hatching or perhaps a moult or two, and then, by drinking or skin perforation, reinfestation, as seen in the hook-worm, Necaior americana. 3. Passage of eggs into water or soil, ingestion by an intermediate host with moultings, passage from secondary host to water, and so back to definitive host, as seen among the flukes, Faspiola hepaticum. A fourth mode, in which a biting insect might figure (as in filari- asis) is surely ruled out, as no embryos have been found in either the peripheral or deep bloods of our verminous birds upon repeated examinations. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 139 The first (direct) mode seems impossible for the following reasons : A. In several cases we found infested birds whose cagemates w^ere free. B. Several pigeons were fed on eggs or actually had them placed in the crop by rubber tube and syringe. Killed at intervals of a month, proventricle and gizzard showed neither micro- nor macroscopic involvement. The last bird killed had been treated three months previously. Pigeons ought to be susceptible to these worms. Our records show that a Barbary turtle dove and white-crowned pigeon died with them in September, 1911, and three blue-crowned pigeons were similarly infested in September, 1907. C. In order to get a perfect blood relationship, ova and embryos were placed in the crop of newly arrived parrots which had been tested by the improved method and passed. Another parrot was kept in a cage soiled by a verminous bird. One bird ched in four weeks ^vith pneumonia. It showed no worms. The others were examined regularly and so far have shown no ova in the stools. D. Roseate cockatoo (No. 166) was placed in a cage with infested roseate cockatoo (No. 120) and drinking water allowed to become soiled on August 28, 1912. The birds were separated twelve weeks later and the healthy cockatoo found still healthy, as shown by examination of droppings. In each of the four conditions cited above an opportunity was afforded for the ova to develop by the first mode. They failed to do so. In testing out the second mode, embryo worms were fed to pigeons and parrots in the same way that eggs were administered in the preceding experiments. The pigeons were killed at one month intervals and the proventricle and gizzard examined by the micro- scope. No infestation was found. A roseate cockatoo also received the larva. In twelve months no ova have been found in the droppings upon repeated examinations. The remaining possibility — entrance by skin penetration — is now being tried. The third mode which would involve an intermediate non-biting host, does not harmonize with our ideas of nematode transmission. In only one case, that of Spiroptera sanguinolenta of the dog, could I find such an example. The cockroach is the secondary host here, and as our aviary harbored many such insects, attention was directed to them. They were fed on cornstarch into which spiroptera ova were mixed. The roaches were dissected at intervals of two days, and though the eggs were found in the cloacal contents, no develop- 140 PROCEEDINGS OF THE ACADEMY OF [March, ment was ever made out. The tissues of the body cavity were also teased and examined with negative results. Our work on the life history of this worm, then, has been disap- pointing. Aside from negative findings, we have only established the fact that the eggs may hatch in four days in tap water at room temperature. Therapeusis. Theoretically, the prospect of a successful therapy is not bright. The worms live in the soft, juicy wall of a canal between the crop and gizzard. Sometimes they appear in the lumen of this canal, in which case they are always surrounded by thick, tenacious mucus. If they are pulled out of this with forceps and are laid on the mucus they at once bore into it. It protects them from anj^ passing medicament, which is apt to have only a transient effect while on its way from the crop to gizzard. Those worms, which may be partly protruded into the lumen from the wall of the canal, can retract and retreat, even as far as the serosa, as shown in one of our museum specimens. The smallest worms are found under the thick, chitinous lining of the gizzard. We have used, therefore, drugs which act on the worms in the lumen (thymol by mouth) and by way of the blood (arsenic hypodermically). The arsenic used has been in the form of Fowler's solution and atoxyl. We determined the minimum lethal dose for j^igeons and administered a corresponding dose to the verminous parrots.^ No practical results have come from our efforts at therapy. Two interesting points, however, were secured: The parrots and pigeons withstood thymol and arsenic in enormous doses, compared weight for weight with man. The droppings of a parrot very heavily infested averaged for five days 182,000 eggs per diem. After a dose of thymol, on one occasion it passed 288,000 eggs in one single day. Filaria fasciata n. sp. In the last three years we have found six examples of filariasis in dead wild-cats. They may be found in the intermuscular fasciae of any of the muscles of the body, but especially in those of the thigh muscles. They number from two to forty. They are coiled in a most intricate manner in the loose areolar tissue, but slip out rather easily upon slight dissection and traction. The animal is emaciated. Its blood swarms with embryos. ^ Fortieth Amiiinl Report of the Board of Directors of the Zoological Society of Philadelphia, 1912. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 141 The female is 2.5-30 cm. long, filariform, 0.5 mm. in breadth. The mouth is simple, unarmed, circular. There are no papillae or other special features at the cephalic extremity. Head is continuous with the body. Caudal extremity straight, conical. Anus subterminaL Vulvar orifice immediately anterior to same. The male measures 11 cm. in length. It closely resembles the female except the tail. This is strongly curved into three or four spiral turns. There are two unequal sharp spicules, the longer 70,'j- in length, the shorter 45/^-. There are five pairs of closely placed preanal papillge and one pair of postanal. The still living embryos measure 280 to 330 microns in length by 4 in breadth. They have a delicate sheath, lashing motion^ and no progression under cover slip. Not examined in hanging drop. Stained specimens exhibit blue spots at irregular intervals, not uniformly enough to be established as head or tail spots. They have been injected hypodermically into kittens with the expected result: no transmission after a lapse of five months. It was at first thought, with our imperfect specimens, that we were dealing with Filaria striata (Molin). This worm is briefly described in Latin: ''Os inerme, minimum; corpus filiforme, longissimum, tenuissime transversim striatum; extremitas anterior crassior; et posterior obtusse; extremitas caudalis maris laxe spiraliter torta, foveola ante apicem limbo cincta, septem papillis permagnis utrinque proedita vagina breve tubulosa; penis brevissimus uncinatus; extremitas caudalis femine inflexa. Longit. mar. 4.5" crassit. \"' . Longit. fem. V 3"; crassit. \"'r With the occurrence of another autopsy many specimens of both sexes were obtained. It is now certain that we have not here Filaria striata (Molin), although the size and habitat of the two are the same. The female might fall under the description given above for striata, but the followdng differences are seen in the male. 1. The tail is strongly coiled. 2. There are six pairs of papillae. 3. There are two spicules. The last difference especially would appear to warrant the naming of a new species. Tropidooerca contorta n. sp. Numerous worms were found in' the proventricle of a concave- casqued hornbill, Dichocerus hicornis (P. Z. G. 2,640). The mucosa 142 PROCEEDINGS OF THE ACADEMY OF [March, was dotted closely by blood-red or blackish points, which were usually best seen on the serosa, but sometimes best through the mucosa. The latter was covered with a thick layer of viscid mucus. The red points numbered perhaps sixty or eighty. A slight degree of teasing with subsequent pressure over such a point expressed a blood-red translucent body which proved upon microscopical exam- ination to be a worm. From its subglobular shape it was at first supposed to be a fluke, but under the microscope it soon revealed characteristics which placed it among the nematodes. Thirty or "forty of these blood-red worms were expressed and examined before any fixative was applied, the material coming to hand very shortly after death. All of these blood-red worms were found to be females. The camera lucida drawings, Plate IV, and measurements are from fresh unfixed specimens, which have been slightly flattened out by the weight of the cover slip. They were examined in normal saline solution. They showed no motion even upon gentle warming. The host had been kept at 10° C. for six to eight hours before autopsy and the parasites in situ at the same temperature overnight. This low temperature acting for twenty-four hours probably explains their quiescence. No males could be found in the slime which so thickly covered the mucosa. After the females had been expressed the mucosa was teased into fine shreds and emulsified in normal saline solu- tion. The sediment was washed in the centrifuge several times and from it eight males were recovered with the aid of the micro- scope. It would appear from this that the males occupy the same jDositions that the females do, i.e., the proventricular crypts. The largest specimen of the mature female measures 2.1 mm. long and 1.9 mm. broad. On account of the complexity of its coils it is impossible to measure the length of the body axis. They are of a blood-red color, both grossly and microscopically, except the gut tract, which contains molecular black material. This central blackened tract may be seen even grossly upon careful scrutiny. They are moderately resistant to pressure, the trauma of extraction never rupturing the organism. Ordinary cover-glass pressure will rupture them only when the mounting medium (normal saline) evaporates excessively. The form of the mature female is extraordinary and occasioned the construction of the genus Tropisuris (Diesing), later changed to Tropidocerca. Before flattening the specimens appear (as shown 1913.] NATURAL SCIENCES OF PHILADELPHIA. 143 by Lieberklihn) in the form of a pumpkin. At one pole the head projects, at the other the tail The cuticle is very thick, transparent, finely transversely striated and of a blood-red color. It is often pro- jected in expansions as the coils of the worm tighten. As the head becomes retracted the cuticle forms a collar-like fold. In some specimens the head and tail have been retracted into the centre of the coil so as to become invisible. In others they project in a varying degree, but never to a greater distance than half the diam- eter of the worm. In such cases the projected part of the body measures 100 to 150 mc. in diameter, tapers slightly anteriorly, to end suddenly at the oral opening. (Plate IV, figs. 4, 5 and 8.) The Gut. — The mouth is unarmed and round. It is succeeded by a dome-shaped buccal space which passes into a long oesophagus. The oesophagus is marked off from the buccal space by a well-defined ring. The walls of the oesophagus are very thick and composed of circular and radial muscle fibres. The oesophagus can be traced deeply into the coils of the worm, where it ends by a rounded extrem- ity in the intestine. The intestine is visible only as a black, irregular tract which twists apparently with the coils. It commences as a large cul-de-sac which receives the oesophagus. It soon narrows and thereafter is irregular in size. Anus subterminal. (Plate IV, fig. 8.) The posterior extremity of the worm narrows quickly to a sharp point. Anal opening 450 mc. from tip. Vulvar orifice 900 mc. from tip. Between the two openings the cuticle is thickened so as to produce a rounded swelling. (Plate IV, fig. 6.) The general body cavity, including its expansions, is filled with closely packed egg tubes, suggesting that such expansions are especially designed to accommodate an extraordinarily developed reproductive system. From the specimens examined in toto the details of this system could not be made out. The ova are elliptical, measure 40 to 45 mc. in length and 20 to 25 mc. in width. Several specimens showed a peculiar unilateral bib attached to the outside of the shell. (Plate IV, fig. 7.) Attempts were made to determine a regular arrangement of the coils. This was very difficult in the case of the fully matured fe- males. It would seem from their shape that the body expansions grew into the grooves between the coils so as to form a well-rounded mass. This makes it difficult to determine from which coil the head and tail protrude (if they protrude at all) and which coils are continuous with each other. The presence of the cuticular expan- sions only serves to increase the difficulty. 144 PROCEEDINGS OF THE ACADEMY OF [March, Immature females were not nearly so puzzling. It was through a consideration of the coils of different specimens at different stages of development, together with reconstructions in wax, that the ar- rangement of the twists was finally made out. The sex of the youngest female could only be determined by its greater proportionate breadth. It measured 2.5 mm. in length and 0.2 mm. in width. It was found with the eight males men- tioned above. It was cylindrical, colorless, and showed no internal structure. It was not coiled, but even at this early stage of devel- opment showed by its angulations a disposition to coil. (Plate IV, fig- 3.) The next female studied in point of age was coiled in one plane only. It measured 1,000 mc. by 1,050 mc; i.e., only half the size of the mature female. It was colorless, except for the gut, which was black. In this case the body axis could be readily followed. It was 3.5 mm. long. This specimen was fusiform, its greatest diameter, 450 mc, was located at the posterior third of the body, where the bulk of the gut and egg tubes were. The head and a large part of the neck, 0.2 mm., are bent sharply dorsally. The rest of the body then curls tightly ventrally to enclose the head and sharply bent anterior portion. The tail ends sharply in a single point. Its tip is recurved. Egg tubes may be seen in the body cavity, but they contain no ova. (Plate IV, fig. 9.) The third female measured 9 mm. in length. This was ascertained by flattening out a small female and forcibly with needles straightening out the coils. The body varies in mdth. Its greatest diameter is 600 mc. It can now be seen that the body cavity bulges out into expansions at several points. The approxi- mation of these expansions to each other, together with a coincident coiling of the parasite, could easily result in the pumpkin-shaped organism so commonly described. The distortion here produced, however, precludes a positive statement in regard to an habitual and orderly arrangement of these expansions along the bod}' axis in the living animal. The fourth female in order of maturity contained mature ova (coiled embryo visible). It was chosen because it was not tightly coiled. It was examined in glycerine with a stereoscopic micro- scope. No cover-glass was used, thus eliminating pressure arte- fact. A wax model was made by combining drawings and direct observation. The rigidity of the coils in the unfixed female raised the question 1913.] NATURAL SCIENCES OF PHILADELPHIA. 145 whether this was a permanent or a changeable arrangement. It has been already remarked that even in a very young female, where the anlage of the organs was not yet prominent, there was a dis- position (as evidenced by angulations) to coil. This same early disposition is also noted in the half-grown specimen which was tightl}' coiled in one plane. These facts seemed to argue the coiling as a peculiarity of the species. To shed further light on the subject, reconstructions were made of two mature females after the wax-plate method of Bonn, and a third (partial) reconstruction in pasteboard. In all three the coils were very tight. In two specimens the head and tail project at opposite sides of the coiled worm. In a third the head and tail are close together. In the two complete reconstructions the tail re- curves in a direction opposite to the general direction of the coils. That is, tracing the coils in a spiral manner down from the head — either clockwise or contraclockwise, as the case may be — we sud- denly come to an abrupt bend toward the tail, where it bends around in the opposite direction. This peculiarity is also seen in the half- grown female mentioned before, and it is this reversal which led to the uncertainty in determining the arrangement by direct examina- tion. As stated above, the coils may (looking at the specimen head on) run clockwise or contraclockwise. From a consideration of the camera lucida drawings of females at different stages of development, along with the wax model and reconstructions, the following deductions are made: There is a very early "embryonic" propensity for the worm to coil tightly. The arrangement of such coils is not constant, the coils turning either clock\vise or contraclockwise. The head along with a short anterior portion is always bent more or less sharply dorsally. The caudal extremity always twists suddenly in a direc- tion reverse ,to that of the more anterior coils. As the female becomes mature, the remarkable egg content causes a broadening of the worm without a proportionate increase in length. This causes the mass to appear globular. The pressure incident to such enormous egg content ol)literates any "dead spaces" between the coils (internally or externally), and this tends all the more to perfect the globular appearance. It is presumed (in the absence of direct observation of living specimens) that the worm may alter its coils and protrude head or tail into the lumen of the proventricle. It does not seem probable, from its bulkiness, that the mature female migrates as does Spirop- 10 146 PROCEEDINGS OF THE ACADEMY OF [March, tera incerta. In support of this, the microscopical sections do not show necrosis as in spiropteriasis, and we do not think that the worms cause serious disease. The female certainly extracts hemo- globin from the host, but does not seem to be wasteful as in uncinariasis. The cagemate of this bird, which is living and also infested, appears perfectly healthy, and is standing such minor blood loss very well. The Male. — From the fact that the specimens were found only after teasing the mucosa (not at all in the luminal slime), it is pre- sumed that they live in the same situations as the females — in the crypts of the proventricular glands. This is, however, hard to prove, on account of the small size, translucency, and relatively small number of males. Serial sections might or might not, from this last circumstance, include a male. The largest male measures 6 mm. in length. At its widest part it measures 125 mc. The body is subcylindrical, filiform, tapering anteriorly to end rather abruptly in a rounded extremity. The head is not separable from the body. It tapers more gracefully posteri- orly, ending in a tail which is curved strongly toward the cloaca. Tip of tail is sharp, recurved from cloaca after the fashion of the point of a fish-hook robbed of its barb. Cuticle finely striated transversely, thin, transparent. (Plate IV, figs. 1 and 2.) None of the male specimens display the blood-red color so con- spicuous in the female. The oral opening is circular. It leads to a narrow buccal cavity, which abruptly opens into an oesophagus mth thick circularly dis- posed musculature. This is succeeded by a straight, simple intes- tine, which becomes coiled at its posterior third, to end 300 mc. from the caudal tip. Cloacal opening surrounded by a pouting, prominent cuticular ring. Spicules unequal. The shorter measures 150 mc, The longer measures 5,400 mc. in length, and when retracted. extends to within 600 mc. of the anterior extremity. This spicule is, then, nine-tenths as long as the individual. One specimen was projected to a distance of 3.0 mm. This length does not represent the full extent to which it may project, as a part of the spicule had been broken off. ' There are two pairs of preanal and two pairs of postanal papillae. There is no bursa. Tropidocerca contorta n. sp. This worm falls easily into the genus Tropisnris (Diesing), later changed to Tropidocerca. This genus includes numerous worms which 1913.] NATURAL SCIENCES OF PHILADELPHIA. 147 lie in the pro ventricles of birds. They vary in size, in different species, from 2 to 7 mm. in length. The striking peculiarity of this nematode is the subglobular form and blood-red color of the female. From the upper pole of the worm a short head projects and from the lower a short tail.^ I have found the following species described as infesting the hooded crow, snipe, plover, woodcock, goose, black coot, widgeon, grosbeak, seagull: Tropidocerca fississpina (Schlatthauber), T. paradoxa (Diesing), T. gijncecophila (Molin), T. hispinosa (Molin), T. glohosa (V. Linstow), T. inermis (V. Linstow), T. tenuis (Lieber- kiihn), T. certa (Leidy). Upon referring to these species I find that the structure of the mouth and tail parts conforms closely to the worm I have been studying. There are certain marked differences, however, which seem sufficient to warrant the naming of a new species: 1. Its tightly coiled form, which is not mentioned or figured in any of the other species. 2. Absence of the four equidistant longitudinal muscular bands which by contracting give the subglobular shape of other Tropi- docercse. 3. The remarkable length of the longer spicule of the male. 4. Disposition of the male papillae. Believing the first-named difference to be the most striking, I have given the nam6 contorta to the species. Trichocephalus dispar (Rudolphi). From the large intestine of a Rhesus macaque (P. Z. G. No. 2,744) three mature worms were obtained. They were very firmly attached to the mucosa and more deeply imbedded than it is customary to find them. The specimen showed tightly clinging detritus along the anterior attenuated portion which could not be removed with a brush. The case is of value because this helminthiasis was associated with a purulent peritonitis. The text-book descriptions do not assign any marked pathogenic properties to this worm. It would seem hypercritical in this case to argue that such asso- ciation is a mere coincidence. Tricocephalus dispar has also been found in Pithecus sntyrus, Cercopithecus mona, C. potas, and C. sahwus, Innuus erythryacus, I. ecaudatus, Cyanocephalus sphinx, and C. porcarius and in Mycetes senicidus. It is mentioned as Tricocephalus lemuris (Rud.) and T. palceformis by Raillet. Its occurrence in 2 Diesing, Syst. Helminth., II, p. 207. 148 PROCEEDINGS OF THE ACADEMY OF [March, these animals suggests lines of transmission from one host to another. Microscopically, all three worms were found to be females. Two were perfect. Head is missing from the third, suggesting that it was firmly attached to the mucosa. The worms conform in every re- spect to the accepted generic descriptions of Tricocephalus. The two perfect specimens measure each 27 mm. in length. The posterior portion is 8.5 mm. long, the narrow, more attenuated, anterior portion, including the head, 18.5 mm. This gives a close proportion of one to two. Measurements were made of ova which lay in the oviduct close to the vulvar opening. They are- 23-25 mc. broad and 52-55 mc. long, including the button. It is unfortunate that no males were included in the material, since it is by these alone that the species may be surely determined; sexual apparatus (especially the sheath of the spicule) furnishing the differentiating characteristics. As far as the material goes, this might easily be a specimen of Trichocephalus dispar. The ova are almost identical, measuring for the largest specimens 25 by 55 mc. as against 23 by 53 for T. dispar. It is true that the specimens are smaller, measuring 27 liim. in length as against 35 mm. for T. dispar, but this is not an uncommon variation for identical species in different hosts. (Witness Ascaris mystax in cats and lions.) Neither does the size of the eggs conform to that given for other species of Trichocephalus: crenatus, 52 by 56, from pig; affinis, ? by 65, from horse; felis, 36 by 72, from cat; unguiculatus, 31 by 52, from rabbit; depressicollis, 31 by 80, from dog and fox; senrdus, 39 by 56, from cat. Paragonimus westermanii (Kerb.). This parasite has been found- in two wild-cats, Felis rufus. They lie in cystic dilatations of the bronchi, generally in pairs. An inflammatory zone is present around each focus. There are not more than half a dozen in each cat. The finding has been made the subject of a paper ^ presented before the Philadelphia Pathological Society by Fox, Smith, Rivas, and Weidman, in which it is pointed out that this worm has occurred in San Francisco, St. Louis, Cin- cinnati, in the Appalachians, and in the Carolinas, whence these cats came. It is the belief of these writers that the parasite will be found oftener in man if it is carefully looked for, and is likely to become more frequent in the United States with the development of our East Indian possessions, where its effects are endemic. 3 To be published in a medical journal. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 149 The occurrence of this worm in wild-cats on our Atlantic seaboard should be taken note of and remembered if this disease develop here. Taenia echinococcus (v. Siebold). This material came from a female Bactrian camel which died in labor from a ruptured uterus. The cysts were most numerous in the liver, constituting fully half the bulk of that organ. The spleen was also extensively involved, the lungs less so. The largest cysts in the liver were sterile, showing no scolices. The specimens were observed alive, and we were able to see the scolices retract the rostellum when they were irritated. One of our microscopic specimens shows a scolex insinuating itself between the lamellae of the wall of the cyst, a circumstance not commonly mentioned in text-books on helminthology. Taenia marginata (Batsch.). The opportunity has presented of seeing this parasite in the most important stages of its complicated life cycle. We have seen the mature worm, ovum, and cysticercus. The strobile or mature worm is the common tapeworm of the dog and wolf. Its head is provided with a circle of booklets. Our specimen was obtained from a gray wolf after a vermifuge. The terminal segments are the mature ones and furnish ova to the stools. In these eggs six hooks can be seen, the precursors of the future rostellum of the mature worm. These eggs, if ingested by herbiv- orous animals, hatch in the intestine and burrow through the liver to the serous cavities of the intermediate host (a ruminant), where they develop a caudal segment. This segment is cystic, and into it on a long narrow neck the head is invaginated. This stage is known as the cysticercus stage, and the parasite has been named Cysticercus tenuicollis. We have found these cysts in the Angora goats, woolless sheep, ring-tailed lemurs, Mexican deer, European roe deer, mule deer, red deer, and fallow deer. It has been proven experimentally by several investigators that they are pathogenic for young ruminants.^ The occurrence of so many of the cysts aroused the suspicion that our ruminants might be contracting the disease from the canines, opposite whose dens some of the deer are parked. Two ex- aminations of the dejecta of our canines revealed but three in- * Neumann's Parasites and Parasitic Diseases of the Domesticated Animals — (Fleming) 1900. 150 PROCEEDINGS OF THE ACADEMY OF [March, festations out of fifteen animals examined. One of these was an American gray wolf, which was given a vermifuge. As a result segments were obtained corresponding to those of Tenia marginata. The wolf has been isolated. He could easily have been the source of some of the cases. In others, however, the animals had been housed in a distant building or were newly arrived. They were doubtless infested when they arrived. One of our cases has furnished a monster formation. The cysts usually consist of a single bladder, into which the head is invaginated. By pressing upon such a cyst the head and long narrow neck may be expressed. In the monster forms the cyst is invaginated by a second cj^st, and into this second cyst the head is invaginated so that when pressure is applied two elongated necks emerge, the innermost bearing the head. The formation is discussed by Railliet, p. 238. If these cysts be ingested by a canine, the bladder will be destroyed, the head becomes fastened to the intestinal wall and gives rise ultimately to the stroliile, Tcenia marginata. The material which forms the basis of this communication has been obtained from the Garden of the Philadelphia Zoological Society, from the Laboratory of Comparative Pathology of which it is reported. During the work I have often had occasion to confer with Dr. Allen J. Smith. The reconstructions of Tropidocerca contorta were only made possible by his generous tender of apparatus and materials from the Department of Comparative Pathology and Tropical Medicine at the University of Pennsylvania. I acknowledge with sincere thanks his freely given advice and criticism. Bibliography, CoBBOLD, Transactions of the Linnean Society of London, II, part 8, 1883. pp. 357-361. DiESiNn, Revis. d. Nemat., pp. 673, 674. Syst. Helminth., II, p. 207. V. Drasche, Verhandlung. d. k. zoojog. bot. Gesellsch. Wien, 1883, pp. 114, 11-5. Leuckart, Troeschel's Archiv f. Naturg., 1860, II, p. 135. Leidy, Proc. Acad. Nat. Sci. Phila., 1886, p. 308. LiEBERKtJHN, MuUer's Archiv f. Naturg., 1855, pp. 314-355. V. LiNSTow, Troeschel's Archiv fiir Naturg., 1877, pp. 5, 6. Troeschel's Archiv fiir Naturg., 1876, I, pp. .5, 6. iirchiv f. Naturg., 1879, p. 175. MoLiN, Sitzungsbericht d. k. k. Akad. der Wisse.n., Wien, XXXIII, p. 298; XL, p. 342. Denkschr. d. k. Akad. der Wissen., Wien, XIX, pp. 297-299. Railliet, A. Traits de Zoologie Medicale et Agricole. 2e Edition. ScHLOTTHAUBER, Aiutlicher Bericht deuts. Naturforscher u. Aerzte, Gottingen 1854, p. 129. ^ ' Description of Plate IV. Fig. 1. — Male Tropidocerca contorta, with the longer penis projected. Fig. 2.— Male T. contorta, with penis retracted. The root of the longer penis reaches almost to the head. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 151 Fig. 3. — Female T. contorla. This is the youngest female found. It tends to coil even at this early stage. Fig. 4. — Female T. conlorta. A mature specimen, showing the cuticular expan- sions and subglobular form of this nematode. Fig. 5. — Female T. conlorta. A mature specimen showing the same general features as the preceding. Fig. 6. — Tail of female 2\ contorla. Fig. 7. — Ova of T. contorla. The unilateral bib is represented on one. Fig. 8. — Female T. conlorta. A mature specimen, showing course of oesophagus and intestines. Fig. 9.— Female T. conlorta. This is a half-grown specimen. It is coiled in one plane only, and shows the head bent sharply dorsally. It also shows the constant feature revealed in the wax reconstructions, viz., the caudal portion bends sharply in a direction opposite to the general coiling of the worm. This figure is drawn on a much larger scale than the preceding. PROC. ACAD. NAT. SCI. PHILA. 1913. BROWN: VARIATIONS IN LUCIDELLA, PROC. ACAD. NAT. SCI. PHILA. 1913. VANATTA: NE^A^ SPECIES OF MOLLUSCA. PROC. ACAD. NAT. SCL PHILA. 1913 MAP OP PAHT OP THE TRIASSIC AREA EASTERN PENNSYLVANIA BV LEGEND WHERRY: TRIASSIC OF PENNSYLVANIA. PROC. ACAD. NAT. SCI. PHILA. 1913. u>a(( of body cavify WEIDMAN: METAZOAN PARASITES. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 151 Fig. 3. — Female T. contorta. This is the youngest female found. It tends to coil even at this early stage. Fig. 4. — Female T. contorta. A mature specimen, showing the cuticular expan- sions and subglobular form of this nematode. Fig. 5. — Female T. contorta. A mature specimen showing the same general features as the preceding. Fig. 6. — Tail of female T. contorta. Fig. 7. — Ova of T. contorta. The unilateral bib is represented on one. Fig. 8. — Female T. contorta. A mature specimen, showing course of oesophagus and intestines. Fig. 9. — Female T. contorta. This is a half-grown specimen. It is coiled in one plane only, and shows the head bent sharply dorsally. It also shows the constant feature revealed in the wax reconstructions, viz., the caudal portion bends sharply in a direction opposite to the general coiling of the worm. This figure is drawn on a much larger scale than the preceding. 11 152 PROCEEDINGS OF THE ACADEMY OF [April, April 15. The President, Samuel G. Dixon, M.D., LL.D., in the Chair. Thirty-nine persons present. The deaths of the following members were announced: John S. Billings, M.D., March 11, and George McClellan, M.D., March 31. The Publication Committee reported the acceptance of papers under the following titles for publication in the Proceedings: "Notes on serpents in the Family Colubridae, " by Joseph C. Thompson, Surg. U. S. N. (March 27). "Amphibians and reptiles from Ecuador, Venezuela, and Yucatan," by Henry W. Fowler (March 28). "Notes on the types of ,some American spiders in European collections," -by Nathan Banks (April 10). "On a collection of birds obtained by the Francis E. Bond Expe- dition to the Orinoco Delta," by Witmer Stone (April 14). A paper entitled "Some aboriginal sites in Louisiana and Arkan- sas," by Clarence B. Moore, was accepted for publication in the Journal (April 14). John M. Macfarlane, M.D., made a communication on the origin and distribution of animals and plants. (No abstract.) • The subject was discussed by Drs. Calvert and Pilsbry. The following were ordered to be printed: 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 153 AMPHIBIANS AND REPTILES FROM ECUADOR, VENEZUELA, AND YUCATAN. BY HENRY W. FOWLER. Several collections of herpetological specimens have recently been acquired by the Academy of Natural Sciences of Philadelphia. Important among them are those forming the basis of this paper. Several species, apparently new, are described and figured. All the figures are drawn to scale, the accompanying line signifying ten millimeters. ECUADOR. The collection from this country was made on the western slope of the Andes, from Guayaquil to Quito, during 1911, by Mr. Samuel N. Rhoads. The fishes were reported by the writer during the same year in these Proceedings. Since then all the collections Mr. Rhoads made were purchased by the Academy. In this connec- tion I wish to express thanks to Mr. Rhoads for the appended notes relating to the habits of the various species. AMPHIBIA. BUFONID^. Bufo marinus (Linnaeus). Two from Bucay. Bufo typhonius (Linnaeus). Seven from Bucay. Found only under stones and logs, in woods and banana plantations. This very variable species ranges over the greater part of South America, and in this connection I have examined many examples from th€ following localities: Chapada, near Cujaba in Matto Grosso (H. H. Smith)-; Upper Punes River (Steere) ; Bahia (Cope) in Brazil; Peru(Orton); Pebas (Orton), Ecuador; Surinam (Bering). Some examples show the hght vertebral line very conspicuously, and in others it is wanting. Variation in the color of the back is seen from nearly uniform brownish specimens to those greatly blotched. Some large examples have nearly all the lower regions blackish, and they also show the postorbital flange greatly elevated. The Bucay specimens do not show any parietal ridges extending from the post- 154 PROCEEDINGS OF THE ACADEMY OF [April, orbital. Females from Pebas, with eggs, have scattered white spots on lower surface of body very pronounced, though the postorbital flange is hardly developed. Bufo cseruleocellatus sp. nov. PI. V, upper figure. Body depressed, its width about equals that of head. No bony ridges on head,. which is broadly depressed, though not con- stricted from rest of body. Snout a httle depressed, contour as viewed above little less than right angle. Eye large, though some- what less than snout in length. Mouth large, rictus extending slightly beyond eye. Lips thin, skin firm, and jaw edges trenchant. No teeth. Tongue large, free for great portion posteriorly, and hind edge triangular. Internal nares moderate. External nares well separated, so that each would fall in external fourth of antero- interorbital width. Latter depressed, or very slightly convex. Lores a little concave, smooth. Tympanum small, vertically elHpsoid, and vertical diameter about f horizontal length of eye. Parotids large, well separated from eyes, though each equals about If eye lengths. Along upper side of head from snout tip low fold extends back, including upper eyelid externally and outer edge of parotid. Fold on latter well marked, though not extending on costal region. Skin largely smooth, though upper surfaces of limbs and hind pelvic region above, with weak tubercles, a few of which are less developed on lower surfaces of hind limbs and costal regions. Parotids and eyebrows more or less granular. Lower surface of body otherwise smooth . Limbs all rather slender. Fingers not webbed, second longest, and first and third subequally shortest. Finger tips all with rather well-developed tubercles. Toes webbed rather narrowly at bases, and each with somewhat well-developed distal tubercles. Two equal well-developed metatarsal tubercles. Fold of skin along outer tarsal edge. Color in alcohol dark slaty-gray above, ground-color nearly uni- form, marked with a number of scattered more or less rounded dusky to blackish blotches, each indistinctly edged with gray, or paler tint than general body-color, to form obscure ocelli. Upper surfaces of these limbs also marked with similar blotches, as three or four on each joint. Lower surface of body pale gray, evidently translucent in life. Breast and throat all more or less clouded with slaty specks, or obscurely spotted with paler or more whitish tints. Length 23 mm. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 155 Type, No. 18,069, A. N. S. P. Bucay, province of Guayas, western Ecuador. July, 1911. S. N. Rhoads. Nos. 18,068, 18,070 and 18,064, paratypes, same data. Length 16 to 22 mm. All the specimens were found under stones, bark and leaves, in woods. This species is apparently related to Bufo cceruleosiictus Giinther,^ but differs in the color-markings. This is hardly due to age, as Giinther gives the upper parts of the body as uniform brownish- black and the lower parts dirty gray-brown. Upper eyelids, sides of trunk and extremities all show small smooth bluish tubercles. His example was 3 inches 6 lines. Boulenger's figure' would show that Giinther's toad cannot be identical. Bufo glaberrimus Giinther'' differs in the smooth skin and a rose- colored spot in the groin, the general color being brownish-black. Bufo hcematiticus Cope^ has a different coloration, especially a pale spot anterior and beneath the eye. A poor specimen in the collection from Coban (Cope) is not fit for comparison. Cope names var. lachrymans,^ probably only a color form. Its length is 1 inch 6 lines- The present species shows some variation in its color markings, and in some examples but few dark spots are present on the back. The latter is also variable as to roughness on its fore part above. {Ccerulea, blue; ocellus, ring; with reference to the color markings on the back.) Bufo chanchanensis sp. nov. PI. V. lower figure. Body moderately depressed, width about equal to that of head. Head without bony ridges, though broad and depressed, not con- stricted from rest of body. Snout a little depressed, contour as seen from above obtusely triangular, slightly more than right angle. Eye large, equal to snout in length. Mouth large, rictus extending trifle beyond eye. Lips thin, firm, and jaw edges trenchant. No teeth. Tongue large, free for last * at least, hind edge rounded. Internal nares large. External nares well separated, falling almost in outer fourth of antero-interorbital width. Interorbital depressed, very slightly concave, width little less than twice that of upper eyelid. Lores smooth. No tympanum. Parotids large, slightly separated from eyes, each equals twice length of eye. Along upper 1 Proc. Zool. Soc, London, 1859, p. 415. Western Ecuador. 2 Cat. Bafr. Sal. Brit. Mus., 1882, p. 291, PL 21, fig. 1. 3 Proc. Zool. Soc, London, 1868, p. 483, PI. 37, fig. 2. Bogota. 4 Proc. Acad. Nat. Sci. Phila., 1862, p. 158. Truando region, Colombia. 5L. c. 156 PROCEEDINGS OF THE ACADEMY OF [April, side of head from snout tip low fold extends back, including upper ej'elid externally and outer edge of parotid, though not continued beyond. Skin very rough, with more or less enlarged tubercles over upper surface. Lower surface of body finely granular. Upper eyelids with large tubercles, though parotids largely smooth. Upper surfaces of limbs tuberculate like back, and lower surfaces granulated like bellj\ Limbs moderately slender. Third finger longest, first and second subequally shortest, and none webbed. Tips of fingers slightly dilated with tubercles. Toes with rather short webs, each ending in small tubercle. Two equal cuneate metatarsal tubercles. Fold of skin along outer tarsal edge. Color in alcohol largely dusky. Sides and lower surfaces all more or less blackish, with abdomen laterally and posteriorly, together with lower surfaces of hind limbs, marbled or reticulated with paler spots or blotches in rather well-defined contrast. Side of upper jaw near edge and below eye, mottled a little, and after eye, along middle of side, blackish. Upper surfaces of limbs blotched with blackish, edged paler. Lower surfaces of all limbs with paler markings. Length 32 mm. Type, No. 18,181, A. N. S. P. Camp Chiguancay, in Chanchan River valley, western Ecuador. March, 1911. S. N. Rhoads. Nos. 18,182, 18,185, 18,193, 18,195, 18,198, 18,202, 18,203, 18,205, paratypes, same data. Found in debris in woodland. Related to Bujo (haul (Molina), as figured by Garnot and Lesson,^ but that species is represented as having short rounded parotids and a very small distinct tympanum. Variation in color is quite noticeable in the present species, though all the specimens are quite dark, with pale bands. (Named for the Chanchan Valle3\) HYLIDuE. Hyla rubra Daudin. Twelve from Hacienda Gorzon to the foot of ]\It. Pichincha, on IMay 16. Two from the forest above Chimbo, 10,300 to 12,500 feet elevation, on April 17. 6 Votj. CoquiUe, II, 1831, PI. 7, fig. 6, Chili. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 157 Hyla chimboe sp. nov. PL VI, upper figure. Body broad, well depressed. Head broad, depressed, its wddth about equals that of body, scarcely constricted. Snout rather broadlj^ depressed, contour as viewed from above well convex. Ej^e moderate, about equals snout length. jMouth large, rictus not quite extending back opposite hind edge of eye. Lips rather thin. ^lax- illary teeth uniserial, fine, uniform, concealed by lip. Vomerine teeth in two series, each rather short, well behind, though would fall partly within space between internal nares, and series approxi- mated posteriorly. Tongue oval, large, last fourth free, and hind edge rounded, not notched. Internal nares rather small. External nares well separated, so they fall near outer fourth of antero-inter- orbital width. Canthus rostralis not very distinct. Interorbital slightly concave. Tympanum rather small, vertically ovoid, and its length about y eye length. Skin very finely granular or nearly smooth largely above, and entire lower surface more or less coarsely granular, though granules on belly largest. Limbs all slender. Fingers with slight basal webs. First finger longer than second, dilated basally or vrith adnate pollex, third longest, and tips of all wdth well-developed rounded flattened disks, each much less than tympanum. Toes slender, fourth much longest, but moderately webbed basally or for less than half their extent, and distal disks similar to those of fingers. No rudimentary hallux or tarsal fold. Color in alcohol evidently uniform dusky above, pale brownish in contrast below. Belly obscurely mottled with darker, and dark mottlings also along edges of hind limbs. Limbs above like back, below like general color of lower surface. Length 37 mm. Type, No. 18,137, A. N. S. P. Mountains above Chimbo, 10,000 to 10,800 feet, Ecuador. April, 1911. S. N. Rhoads. Nos. 18,155 and 18,159, paratypes, same data. These 25 mm. in length. This species is related to Hyla rubra Daudin, which differs in having the toes three-fourths webbed, snout 1^ to If in length of eye, a strong fold across the chest, and in having the vomerine teeth in two small groups between the internal nares. (Named for Chimbo, the type locality.) Hyla riobambae sp. nov. PI. VI, lower figure. Body broad, well depressed. Head broad, depressed, its width 158 PEOCEEDINGS OF THE ACADEMY OF [April, greater than that of body, very slightly constricted. Snout broadly depressed, its contour as viewed above well convex. Eye moderate, about 1| to snout tip. Mouth large, rictus extending back to hind eye edge. Lips as rather thin skin. Maxillary teeth uniserial, uniform, conic, hidden by lip. Vomerine teeth few, conic, slightly hooked, form nearly continuous series between internal nares, so that on level with posterior portion near edge of latter. Vomerine teeth would form very obtuse angle, latter directed posteriorly. Tongue large, orbicular, free for about last third, and hind edge well notched. Internal nares large. External nares rather close, so they fall slightly within median third of antero-interorbital width, Canthus rostralis distinct, not conspicuous. Interorbital slightly concave. Tympanum rather small, rounded, its length 1| in eye. " Skin largely smooth above, granulate below, with granules on belly and lower sides much largest. Groin, hind part of pelvis and region around tympanum granulated. Lower surfaces of fore limbs and femora finely granulated. Limbs all slender. Fingers with slight basal webs. First finger longer than second, dilated basally or with adnate pollex, third longest, and tips of all with well-developed rounded flat disks, each of which less than size of tympanum. Toes slender, fourth much longest, all rather well webbed basally or for half their extent, and distal disks similar to those of fingers. A rudimentary hallux in form of cuneate compressed tubercle at base of first toe on inside, though not free and much less in extent than that of first finger. A slight tarsal fold along inner edge. Color in alcohol slaty above, with two broad more or less complete darker lengthwise bands. These bands extend from each eye above to hind side of pelvis, though broken a little posteriorly. Tympanum in a similar-colored blotch. Sides of body slightly more grayish in general color, with rather numerous rounded dark spots towards and in groin. Upper surfaces of limbs like back, with irregular darker blotches. All darker markings have slightly paler edges than body-color. Lower surface of body pale or nearly plain dull brownish. Hind surfaces of tibia and femora mottled dark slaty and whitish. Length 48 mm. Type, No. 16,161, A.N. S. P. Rio Bamba, Ecuador. April, 1911. S. N. Rhoads. No. 16,160, paratype, same data. It shows belly specked or spotted with dusky. These specimens were found in crevices of a stone and cactus wall. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 159 along the roadside. They were very quiet. Color in life a varie- gated grayish. Hyla labialis Peters, from Bogota, is perhaps related, though it differs in the hardly distinct tympanum being only f of eye. It is also olive-green above, changing olive-green on sides with blackish- brown band from snout tip through eye to middle of side, lips narrowly edged brown, and sides of thighs narrowly reticulated with brown. Hyla nehulosa Spix, from Brazil, H. depressiceps Boulenger, from Ecuador, and H. phceota Cope, from Colombia, all differ in color as well as having the hind edge of the tongue rounded, not notched. (Named for the town of Rio Bamba, the type locality.) Hyla quitoe sp. nov. PI. VII, upper figure. Body moderately broad, somewhat depressed, and width appar- ently slightly less than that of head. Head broad, depressed, scarcely constricted. Snout depressed, contour as viewed above rounded or well convex. Eye moderate, about 1^ to snout tip. Mouth large, rictus extending back slightly beyond eye. Lips as rather thin skin. Maxillary teeth uniserial, uniform, pointed, conic, hidden by lip. Vomerine teeth few, larger in two very short series approximated between internal nares opposite their posterior portion. Contour of vomerine teeth would form very obtuse angle, latter directed posteriorly. Tongue rather large, ovoid, with bulge posterior, hind portion free about j entire length, and hind edge entire or convex. Internal nares moderately large. External nares moderately sepa- rated, falling about outer third in anterior interorbital width. Can- thus rostralis not very distinct. Interorbital slightly depressed. Tympanum vertically ovoid, its vertical diameter about f length of eye. Skin largely smooth above, granular below, though granules on belly best defined. Lower portions of flanks, hind limbs below and posteriorly, and sides of pelvis also more or less granular. Region around tympanum apparently smooth. Lower surfaces of fore limbs smooth. Limbs all slender. Fingers with distinct, though small or short basal webs. First finger trifle longer than second, and swollen basally as if with rudimentary pollex. Third finger longest. Tuber- cles on fingers apparently little developed. All fingers and toes with rounded disks moderately developed, much smaller than tympanum. Toes slender, fourth much longest, about halt webbed basally. First 160 PROCEEDINGS OF THE ACADEMY OF [April, toe with slight rudimentary dilation as hallux, basally. Metatarsal tubercles not evident. A slight posterior tarsal fold. Color in alcohol more or less grayish above, slightly tinged with very pale greenish or slaty tint. Upper lip, snout tip, and throat, grayish- white. From behind eye, embracing tj^mpanum and extending back to groin, broad black band, edged above and below with whitish or grayish. On lores this band continued as pale bluish-gray streak from eye towards tip of snout. From canthus rostralis, which defined by whitish line, a pale bluish-gray streak extends back, includ- ing upper eye cover, though separated by rather broad vertebral area to pelvis, near its hind end. These bluish bands edged dusky. Limbs with general color above like that of back, also with obscure dull slaty markings as blotches or otherwise, though below pale and uniform light brownish, likely translucent in life. Throat whitish, belly becommg tinged pale greenish-gray, slightly variegated with darker shades of grayish. Length 20 mm. Type, No. 18,238, A. N. S. P. Quito, Ecuador. June 4, 1911. S. N. Rhoads. Nos. 18,234 and 18,235, paratypes, same data. This species shows variation in color, as the blackish lateral streaks are sometimes broken up into spots or fade paler on groin, in which case if former occur they are whitish edged. Related to Hyla mesophcea Hensel and H. venulosa (Laurenti), but differing in color. (Named for Quito, the type locality.) Hyla quinquefasciata sp. nov. PL VII, lower figure. Body broad, well depressed. Head broad, depressed, its width a little less than that of body, and neck slightly constricted. Snout depressed, rather triangular as seen from above. Eye small, 1| in snout or equal to space between front eye edge and external nare. Mouth large, extends back opposite hind eye edge. Lips thin. Maxillary teeth minute, uniform, concealed by lip. Vomerine teeth in two well-separated patches between posterior portions of internal nares, nearly horizontal or scarcely inclined posteriorl3\ Tongue broad, rounded, hind edge notched distinctly and this region free for last fourth. Internal nares moderate. External nares well separated, placed at third of antero-interorbital width. Canthus rostralis not very evident. Interorbital depressed, nearly level. Tympanum rounded, Ij in eye. Skin on back and upper surfaces of limbs smooth, with a few 1913.] NATURAL SCIENCES OF PHILADELPHIA. 161 scattered small tubercles on back. Lower surface of head, fore limbs and tarsus, tibia and fibula, smooth. Belly, lower sides and lower femoral regions rather coarsely granular. A fold of skin across chest. Limbs all slender. Fingers not webbed. First finger a little shorter than second, little dilated basally. Third finger longest, and tips of all with broad flattened ellipsoid disks, each much less than tympanum. Toes moderate, fourth longest and all well webbed, nearly completely so, and distal disks similar to those of fingers. Two small metatarsal tubercles. Hind edge of tarsus with low fold. Color in alcohol largely dull or pale brownish above, lighter or paler below, and of uniform tint. Back with five lengthwise darker streaks, median vertebral as triangle between eyes, and extends on front of upper eyelids. From posterior surfaces of latter each outer streak extends back, while outermost includes tympanum and runs well lateral along body. Upper surfaces of limbs with well-defined cross-bands, especially on femora and tibia. Hind surfaces of femora mottled slightly with dusky. Length 30 mm. Type, No. 18,115, A. N. S. P. Mountains above Chinibo, 10,000 to 10,800 feet elevation, Ecuador. April, 1911. S. N. Rhoads. Only a single example, described above. It is related to Hyla auraria Peters from South America. The latter differs in the follow- ing points. Vomerine teeth within the limits of the internal nares, snout long as eye, tympanum vertically oval or two-thirds length of eye, three outer fingers webbed at base and back without five dark longitudinal streaks. {Quinqiie, five; fascia, streak; with reference to the color of the back.) Nototrema marsupiatum (Dumeril and Bibron). One example in poor preservation, taken in swamp-grass on a trip between Hacienda Gorzon to Mount Pichincha, May 11, 1911. In life color light green, breast and sides brassy-yellow, also spot back of eye, and joints of limbs bluish. Length 17 mm. CYSTIGNATHIDiE. Hylodes conspicillatus Gunther. Twenty examples from Bucay, taken in July, 1911. They were found in a little spring-run which extended down into a grassy tract. In habits they suggested Acris, as they would jump into the water, 5wim across the brook, and come up again on the opposite side. The 162 PROCEEDINGS OF THE ACADEMY OF [April^ largest is about 45 mm. long. Young examples show several whitish spots in a streak, due to the fold extending down from the lower edge of tympanum towards shoulder. Three more example^ with the same data differ from all the others in the median narrow whitish line extending from the snout tip to the vent. This line is clearly defined in all three. Many other of the specimens show a trace of it on the upper lip at the snout tip,, but soon fading out in the darker color of the rest of the upper surface of the snout. These examples are thus strikingly like Boulenger's figure of Hylodes unistrigatusJ Two other examples in the collection are likely identical. One was secured at Hacienda Jalancay near Chinchi, in Chimbo, April, 1911. The other is young, and was taken at the camp near the junction of the Chiguancay and Chanchan Rivers. Hylodes pagmae sp. nov. PI. VIII, upper figure. Body moderately depressed, elongately ovoid in contour, and width a little less than that of head. Latter moderately broad, a little' depressed, scarcely constricted. Snout slightly depressed^ contour as viewed above rather triangular, tip obtuse. Eye rather large, Ij in snout or equals space between front of eye and nostril. Mouth large, rictus falling about opposite hind edge of eye. Lips thin. Maxillary teeth fine, uniform, uniserial. Vomerine teeth in two large patches, approximated until directed posteriorly behind internal nares. Tongue apparently ovoid (distorted), last third free, hind edge rounded. Internal nares moderately large. External nares fall at third in antero-interorbital space as viewed in front. Canthus rostralis not very distinct. Interorbital depressed, twice width of upper eyelid. Tympanum trifle ovoid, its vertical diameter 1^ in eye. Skin largely smooth. Belly, lower sides and lower surfaces of femoral regions granular, though granules apparently rather obsolete. Region around tympanum smooth. Lower surface of fore limbs and throat smooth. No fold across breast. Limbs all slender. Fingers and toes without any webbing, and if ever present only slightly developed. First finger trifle longer than second, and slightly swollen basally on inside, as if with rudi- mentary pollex. Third finger longest. Tubercles on phalanges not well developed. All fingers and toes with terminal rounded disks, moderate in size or all much smaller than tympanum. Toes ' Cat. Bntr. Sal, 1882, p. 217, PI. 14, fig. 4. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 163 slender, fourth much longest. First toe with slight basal dilation. Metatarsal tubercles hardly developed.? Hind edge of tarsus with slight low fold. Color in alcohol brownish above, slightly paler below, though latter region also clouded slightly with brownish. A dark band connects •eyes anteriorly, and another extends from hind edge of each eye as W-shaped marking. Behind this several dark blotches on back, first with angle directed forward. Several dark blotches along each side of trunk. Femoral and tibial joints each with four transverse dark blotches. Feet and upper surfaces of fore limbs with dark blotches. All dark markings of upper surface with pale or grayish edges. A dark bar above each tympanum and another from front of eye to snout tip. Length 32 mm. Type, No. 18,244, A. N. S. P. Pagma Forest in the Chanchan River basin, province of Chimborazo, Ecuador. April, 1911. S. N. Rhoads. Paratype, No. 18,179, A. N. S. P. From the camp at the Junction ■of the Chiguancay and Chanchan Rivers. This example differs only in details of coloration and such characters as may result from age. Length 21 mm. Hylodes achatinus Boulenger,^ based on a female 50 mm. long, is related. It is, however, described and figured with the tongue notched behind. Its color design is different, partially suggestive of the present species, as if unfinished. Hylodes surdus Boulenger,^ has no tympanic disk, nostrils nearly ■equally distant from eye and snout tip, and first finger shorter than second. Hylodes whymperi Boulenger,i° has the tympanum, first finger shorter than second, skin of back tubercular, and coloration different. Hylodes unistrigatus Giinther,^^ has the tympanum not quite half diameter of eye, and a strong fold across the chest. Hylodes huckleyi Boulenger,!^ has the snout equal to the eye, tympanum a little over a third length of eye, toes free and slightly fringed, and skin above with smooth warts. 8 Proc. Zool. Soc, London, 1898, p. 120, PI. 15, figs. 2-2a. Cachabe 9 Cat. Bat. Sal., 1882, p. 212, PI. 14, fig. 3. W. Ecuador. ^° L. c, p. 218. Tortorillas and Cotocachi. 11 Proc. Zool. Soc, London, 18.59, p. 416. W. Ecuador. i2 Cat. Bat. Sal., 1882, p. 217, PI. 14, fig. 5. Intac. 164 PROCEEDINGS OF THE ACADEMY OF [April,, Hylodes longirostris Boulenger/'' differs in the long snout containing; the eye-diameter about If in its length, and the coloration. (Named for Pagma Forest, where the type was secured.) BNGYSTOMATID^. Phryniscus laevis Gunther. Twenty from the mountains above Chimbo, at an elevation of 10,000 to 10,800 feet, in April, 1911. Nine from Hacienda Gorzon to foot of Mount Pichincha, on May 16,1911. One from Quito, on June 4, 1911. This and the above collected by S. N. Rhoads. One obtained by Dr. M. Meitzner, from Huigra to Rio Chiguancay. Mr. Rhoads says these frogs were found in the open pastures along the mountain side. They appeared to crawl or walk, and when one endeavored to grasp or try to catch them, they weakly tried to hop. The sexes were noticeably different, and the males were always much smaller. As this was the spawning season, they were usually found copulating. The males clasp the females very tightly, mount from above, and their grasp is axillary. Sometimes another male would grasp a male already in coitus. All found were in wet or damp places, extremely abundant, and appeared usually oblivious to danger. When handled they made a weak squeak. Variation in color was very great, and on the lower surface of the body varied from dark orange, brick-red to lighter or sometimes to a gamboge tint. Upper surface of body usually not variable, mostly olive- brown. None of the larger animals, as hawks, opossums, rats or foxes seemed to prey on them. Their only enemy appeared to be an ant thrush {Grallaria monticoJa), and it did feed on them. DENDROBATIDiE. Dendrobates trivittatus (Spix). One example 19 mm. in length, from the camp near junction of Chiguancay and Chanchan Rivers, taken in March, 1911. Color with snout brown, back black, and white line, includes edge of ' upper eyelid, to groin well contrasted. Lower surface uniformly whitish. RANID^. Phyllodromus pulchellus Espada. One example 15 mm. long from Bucay, in July, 1911. 13 Proc. Zool. Soc, London, 1898, p. 120, PI. 15, fig. 1. Cachabe. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 165 Phyllobates infraguttatus Boulenger. Two examples from Huigra in Chimbo, at 4,000 feet elevation, on February 18, 1911. Twelve examples from camp at junction of Chiguancay and Chanchan Rivers in March, 1911. Some of the above differ from Boulenger's figure in showing the white spots of the lower region much larger or with the intervening dark color quite narrow, producing a reticulated appearance. Some also have a more or less large dark blotch at each side of the sternum. Upper surfaces of hind legs in most all examples usually distinctly cross-banded with darker. Possibly a few slight tubercles or granules on the back may be due to preservation, or only variation. Most are perfectly smooth. Six others, young with same data as last lot, show the bellj' and lower surfaces more or less whitish, though usually with two dark blotches on chest, one each side of median line. Mr. Rhoads says the adults were found with the tadpoles hanging^ on their backs. These were apparently attached to the rugosities or slight tubercles on the back, the tadpole hanging by means of its mouth, with the appearance of holding on as if by a teat. The tadpoles were always found attached with their tails drooping back- ward, and six to ten were noticed^ on a single adult. In color the tadpoles were leaden-black. The adults were quite noisy. Prostherapis whymperi Boulenger. One example 27 mm. long, on trip from Hacienda Gorzon to Mount Pichincha, May 10, 1911. Color above blackish, finely spotted with greenish-white and lateral stripe same color. Belly brassy- brown and head and throat spots indistjnct. Found in a swamp. Hyloxalus huigrse sp. nov. PI. VIII, lower figure. Body depressed. Head moderate, depressed moderately. Snout moderately depressed, rather angular as viewed from above, well protruded beyond lower jaw. Eye large, about 1| in snout or equal to space between front eye edge and nostril. Mouth large, rictus extending back about opposite hind eye edge. Maxillary teeth minute, mostly uniserial, each tooth simple, short and conic, and mostly hidden by thin lip. Vomerine teeth absent. Tongue large, ellipsoid, hind edge deeply emarginate, though rather evenly concave, and hind third free. Internal nares moderate. External nares small, mark inner third of antero-interorbital width. Canthus rostralis scarcely distinct, and lores oblique. Interorbital flat. Tympanum small, rounded, about one-third in eye length. 166 PROCEEDINGS OF THE ACADEMY OF [April, Skin perfectly smooth above and on sides of both trunk and limbs. Lower surface of body, including breast, belly, and lower femoral region, weakly granular, though granules all rather large in size. Lower surfaces of fore limbs and throat, smooth. Limbs rather slender. Fingers and toes entirely free, without any webs whatever. First finger a little shorter than second, dilated basally with moderate tubercle or pollex, third longest, and tips of all broadly dilated so that front edges wide, or greater tharf diameter of tympanum. Toes slender, fourth much longest, and distal disks or dilations similar to those on fingers. A well-developed tubercle at base of first toe on sole of foot inside, and of about equal extent to that of first finger. Tarsal fold very indistinct. Color in alcohol largely dull or gray-brown above, much paler below. Back scarcely variegated. A dark broad band connects •eyes across interorbital for its posterior extent and beyond till opposite hind edge of tympani. Limbs above with indistinct darker cross-bars or blotches. Groin not variegated, and breast and belly likewise. Length 20 mm. Type, No. 18,113, A. N. S. P. Huigra, at an elevation about 4,000 feet, Ecuador. February 13, IQIL S. N. Rhoads. Related to Hyloxalus hocagei Espada,^* which differs in having the ^kin quite smooth, canthus rostralis angular, loreal region nearly vertical, tympanum half width of eye, toes nearly entirely webbed, and coloration. (Named for Huigra, the type locality.) Rana brevipalmata rhoadsi subsp. nov. PI. IX, upper figure. Body moderately depressed. Head moderately depressed, wider than rest of body. Snout moderately depressed, somewhat pointed as viewed from above, well protruded beyond lower jaw. Eye large, about equals snout in length. Mouth large, rictus extends back opposite front edge of tympanum. Maxillary teeth short, conic, strong, uniserial, and hidden by lip. Vomerine teeth weak, small, in two rounded patches between and partly behind internal nares. Tongue large, sagittate or elongately triangular with deep notch behind, and posteriorly free for a third its length. Internal nares well separated, moderate in size. External nares small, widely sepa- rated, further apart than interorbital width. Canthus rostralis little developed, and lores oblique. Interorbital depressed, though ^* Boulenger, Cat. Batr. Sal, 1882, p. 138. Sarayacu and Canelos. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 167 slightly convex. Tympanum moderate, rounded, about f orbital length. Skin largely smooth above, and perfectly so on sides of both trunk and limbs as well as entire lower portions. On back, between eyes and vent, a number of minute obsolete wide-set granulations. Limbs slender. Fingers free and toes all completely webbed. First finger longer than second, subequal with third, with large tubercle or pollex basally inside. Tubercles on fingers and toes not very conspicuous. Toes slender, and fourth much longest. Cuneate tubercle at base of first toe well developed, though much smaller than that of first finger. Tarsal fold very pronounced along inner edge of tarsus. Color in alcohol with back and upper surface of head deep olive- brown, marked obscurely with some rather wide-set, ill-defined dusky spots. Lips and tympanum browni, and throat much paler or lighter, also uniform. Fore limbs brownish, paler l)elow, and upper surfaces with obscure dusky marks as streaks or blotches. From elbow to palm, posteriorly, dark streak well defined. Hind limbs brownish above, pale below, and both surfaces mottled with rather coarse dark reticulations, most distinct or blackish along hind femoral regions. Feet also variegated with dusky. Sides of trunk with pale olive tint, with a few obscure dusky spots. Belly pale like throat. Length 43 mm. Type, No. 18,051, A. N. S. P. Bucay, Province of Guayas, Western Ecuador. July, 1911. S. N. Rhoads. Nos. 18,073, 18,080, and 18,082 to 18,084, paratypes, same data. This subspecies is closely related to Ranula hrevipalmata Cope,^^ figured for comparison as Plate VIII, lower figure, but differs in several characters, such as the smaller tympanum and much shorter snout. It agrees, however, in the coloration, especially in not having the limbs transversely barred with darker above. For comparison I have had Cope's type. According to Mr. Rhoads, it lives about springs, and recalls the habits of our spring frog (Rana clamato). A tadpole, with the same data as the examples from Bucay, is likely identical. (Named for Mr. S. N. Rhoads.) Proc. Acad. Nat. Sci. Phila., 1874, p. 131. Nauta. 12 168 PROCEEDINGS OF THE ACADEMY OF [April, REPTILIA. COLUBRIDJE. COLUBRIN.^. Drymobius boddaertii (Sentzen). Two from between Huigra to Rio Chiguancay, in 1909-1911, collected by Dr. Max Meitzner. Drymobius dendrophis (Schlegel). " One, with same data as last. Erpetodryas fuscus (Linnseus). A large example from the Rio Chiguancay, taken by Mr. Rhoads in March, 1911. It runs swiftly along the ground. Another, smaller, was taken near Bucay in July, 1911. It was found in bushes, several feet above the ground. Leptophis occidentalis (Gunther). One from between Huigra to Rio Chiguancay, in 1909-1911, collected by Dr. Meitzner. Liophis albiventris (Jan). One with same data as last, and another from Quito, taken by Mr. Rhoads on June 4, 1911. TJrotheca lateristriga (Berthold). One from between Huigra to Rio Chiguancay, 1909-1911, taken by Dr. Meitzner. Lampropeltis micropholis Cope. Eight examples, and one head, with same data as last. Mr. Rhoads secured an example from Huigra, at 4,200 feet elevation, on February 17, 1911. Another was also secured by him at Hacienda Jalancay, Chinchi, in the Province of Chimborazo, in April. 1911. Atractus badius (Boie). One from Huigra, at 4,500 feet elevation, found under the ground on February 18, 1911, by Mr. Rhoads. Dr. Meitzner also secured the larger example from between Huigra to Rio Chiguancay, in 1909-1911. HOMALOPSIN.E. Leptodeira albofusca iLacepede). One from the lowlands near Duran, taken near the edge of a forest, February 12, 1911. ELAPIN.E. Elaps fraseri Boulenger. Two from between Huigra to Rio Chiguancay, secured l)etween 1909 1911 bv Dr. Meitzner. 1913.] • NATURAL SCIENCES OF PHILADELPHIA. 169 AMBLYOEPHALID^. Leptognathus ellipsifera Boulenger. One, same data as last. Leptognathus andianus Boulenger. Two, also same data as preceding. CROTALID^. Lachesis schlegelii (Berthold). One, same data as preceding. Lachesis microphthalmus Cope. Two examples, and one head. These from Dr. Aleitzner, and with same data as last. GECKONID^. Gonatodes caudiscutatus (Gunther). Two, secured in July, 1911, by Mr. Rhoads, at Bucay. They were found living in crevices of porches of the second story of houses. They were seen to come out on the screen, about a foot or so from their retreat. Their movements were slow and sluggish, and they darted suddenly, for a short distance only. IGUANID^. Anolis gemmosus O'Shaughnessy. Two from Bucay, in July, 1911, secured by Mr. Rhoads. Basiliscus galeritus A. Dumdril. Mr. Rhoads secured two from the camp at the junction of the Rio Chiguancay and Rio Chanchan in March, 1911, and three more at Bucay in July, 1911. According to Mr. Rhoads, it is a most interesting species. It was found frequenting the banks of running streams, where they would sit on the rocks in the open sunshine. These rocks were always near the edge of the water. When disturbed, the lizards would suddenly dart across the intervening running water to the next rock or boulder, and then turn their heads around and look at the intruder in a most apish fashion. In crossing the surface of the water their feet and tails would move so rapidly that no portion of the animal appeared submerged. Often the fore part of the body was raised an inch or more above the surface. Frequently the lizards would cross very turbulent water. When chased from rock to rock, they would finally attempt to cross even wide torrents, and are able by the great speed of their movements to go as far as thirty or forty feet 170 PROCEEDINGS OF THE ACADEMY OF • [April, before becoming exhausted. They would then sink below the surface, and if watched carefully they may have been found to rise again farther down stream to swim towards the bank, though Mr. Rhoads had not seen them reach it under these difficulties. Another variety, green and blue in color, was found up to 3,500 feet elevation, at least to Chanchan. It lives about the streams on the edges of forests. When the sun appears these lizards would keep along the edges of the water. One was seen to cross a small stream near Bucay. Liocephalus iridescens Gunther. One from between Huigra to Rio Chiguancay, 1909-1911, secured by Dr. Meitzner. Liocephalus guntheri Boulenger. Mr. Rhoads secured eight at Rio Bamba in April, 1911, and one on a trip from Hacienda Gorzon to the foot of Mount Pichincha, on May 11, 1911, at an elevation of 10,500 feet. Of the Bucay examples, one was young and shows two lateral white lines, the first from the hind eye-edge and second from below ear. TEIIDuE. Ameiva septemlineata A. Dum6ril. One from camp at junction of Rio Chiguancay and Rio Chanchan in March, 1911, two from Huigra in April, and six from Bucay in July. All obtained by Mr. Rhoads. Some examples vary in having an outer or fourth row of ventral plates, sometimes rudimentary or again better developed. Most larger examples show no median streak down the back, and present in only one case. Proctoporus unicolor (Gray). One from Hacienda Gorzon to the foot of Mount Pichincha on May 16, 1911. Taken by Mr. Rhoads. VENEZUELA. The Amphibians and Reptiles from Venezuela form part of the collections of natural history objects brought together by Mr. Francis E. Bond. Like the fishes, which I have previously reported, they were all secured in the Orinoco delta region during the late winter and early spring of 1911. Mr. Bond has kindly given the collec- tion to the museum of the Academy. HYLIDiE. Hyla maxima (Laurenti). One from near the mouth of the Manamo, found on a palm leaf. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 171 Another from the Manamo near Boca Uracoa. Mr. Brown says they were very abundant and vociferous, doubtless due to the heavy rains then prevailing. Both examples adult. OOLUBRID^. COLUBRfNiE. Helicops angulatus (Linnaeus). Two young, and several eggs containing similar specimens, from Cariquito. Drymobius boddaertii (Sentzen). Tw^o from Cariquito. Phrynonax fasciatus (Peters). One from Cariquito. Spilotes pullatas. Three large examples, all from Cariquito. Coluber corais Boie. Two adults from Cariquito. Erpetodryas sezcarinatus (Wagler). One obtained at Cariquito. Ehadinaea cobella (Linnaeus). One from the Juanipa River. HOMALOPSIN.E. Oxybelis fulgidus (Daudin). One large example from Cariquito. It contained a lizard about a foot in length. Oxybelis acuminatus (Wied). Two from Cariquito. BOIID^. Corallus cookii Gray. Two from Cariquito. IQUANID^. Anolis nitens bondi .subsp. nov. Plate 10. Body long, nearly cylindrical, and no dorso-nuchal fold. Tail compressed, without crest. Head and trunk about two in tail. Head depressed, longer than tibia. Snout depressed, tip rather broadly convex. Eye lateral, elongate, much nearer ear than snout tip. Eyelids minutely scaly, movable. Teeth moderately large, and becoming larger posteriorly or below eyes. Teeth in front of 172 PROCEEDINGS OF THE ACADEMY OF [April, each jaw small. A small gular appendage, though no tramsverse fold across throat. Interorbital space very narrow and concave. Ear much smaller than eye, rounded. Upper head scales large, smooth, and in three or four series on bony interorbital. Occipital scale rounded, much larger than ear. Scales on back small or minute, subhexagonal, juxtaposed, smooth, and about four vertebral series distinctly more or less uniformly larger. Ventral scales rhomboidal, much larger than dorsal, and each one with a distinct lengthwise keel. Upper scales on limbs all rhomboid and more or less keeled, lower scales minute and like those on back. Scales on tail all rather larger than those on Ijack, similar to those comprising vertebral series. . Limbs slender, and long toe slender, with distal joints raised above penultimate and mostly slightly swollen. Adpressed hind limb not quite reaching forward to snout tip. Color in alcohol mostly pale or dull greenish-gray, with metallic lustre, and lower surface of head and trunk more or less whitish. Latter regions, besides lower surface of tail, with scattered dusky dots, rather inconspicuously distributed. Total length 95 mm. Type, No. 18,277, A. N. S. P. Cariquito, Venezuela. March, 1911. Francis E. Bond and Stewardson Brown. Only known from the above example. It is possibly only a form of Anolis nitens (Wagler), though, according to Boulenger's account, that species^^ would differ in having the head shorter than the tibia the upper head scales keeled, the enlarged dorsal vertebral scales in only two series, the adpressed hind limb reaching beyond the snout tip, the digits ver}^ feebly dilated, the rounded tail more than twice length of head and body, and the coloration. (Named for Mr. Francis E. Bond, who organized the Venezuela Expedition of 1911.) Polychrus marmoratus (Linn^us). Four from Cariquito. Tropidurus torquatus (Wied). Two from Cariquito. Plica plica (Linnaus). Four from Cariquito. Iguana tuberculata Laurenti. Three examples from Corical. 16 Cat. Lizards Brit. Mus., Ed. 2, II, 1885, p. 91. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 173 TEIID^. Tupinambis teguexin (Linnaeus). Two from Cariquito. Tupinambis nigropunctatus (Spix). Two examples from Cariquito. Ameiva ameiva (Linnaeus). One from the Jiianipa River and two from Cariquito. Cnemidophorus lemniscatus (Daudin). Four males and two females from Cariquito. SCINCID^. Mabuya agilis (Raddi). One from Cariquito. CROCODILIDJE. Jacaretinga sclerops (Schneider). One from Corical. Jacaretinga Spix has page priority over Caiman Spix. TESTUDINID^. Testudo denticulata Linnjeus. A large shell from the Juanipa River, also two small specimens with same data. YUCATAN. A small collection from the Chichen-itza Ruins, in the northeastern part of this country, was made by Mr. Edward H. Thompson. It becomes the property of the Academy through Dr. Ward Brinton. ENGYSTOMATIDiE. Rliinophrynus dorsalis Dum^ril and Bibron. OOLUBRIDiE. Coluber corais Linnaeus. Oxybelis acuminatus (Wied). Leptodeira personata Cope. Himantodes gemmistriatus Cope. Elaps fulvius Linnaeus. GLAUCONID^. Glauconia albifrons (Wagler). IGUANID^. Ctenosaura acanthura (Shaw). 174 PROCEEDINGS OF THE ACADEMY OF [April, FAUNAL WORKS. Ecuador. BouLENGER, Geoege A. 1880. Reptiles et Batraciens recueillis par M. Emile de Ville dans des Andes de I'Equateur. Bull. Soc. Zool. France. 1880, pp. 41-48. 1881. Description of a new Species of Enyalius in the Brussels Museum. Proc. Zool. Soc, London, 1881, pp. 246-247, PI. 26. 1882. Account of the Reptiles and Batrachians collected by Mr. Edward Whymper in Ecuador, in 1879-80. Aim. Mag. Nat. Hist., London,' (5), IX, 1882, pp. 4.57-468. 1891. Travels amongst the Great Andes of the Equator, by Edward Whymper. Supplementary Appendi.v, Reptiles and Batrachia, pp. 128-136. 1898. An Account of the Reptiles and Batrachians collected by Mr. W. F. H. Rosenberg in Western Ecuador. Proc. Zool. Soc, London,' 1898, pp. 107-126, Pis. 10-18. 1899. Description of a new Lizard of the genus Ameiva from Ecuador. L. c, 1899, pp. 517-518, PI. 28. . Descriptions of new Reptiles and Batrachians collected by Mr. P. O. Simons in the Andes of Ecuador. Ann. Mag. Nat. Hist., London, (7), IV, 1899, pp. 454-457. 1902. Descriptions of new Batrachians and Reptiles from Northwestern Ecuador. L. c, (7), IX, 1902, pp. 51-57. 1912. Descriptions of new Reptiles from the Andes of South America, preserved in the British Museum. L. c, (8), X, 1912, pp. 420-424. Cope, Edward D. 1868. An examination of the Reptilia and Batrachia obtained by the Orton Expedition to Ecuador and the Upper Amazon, with notes on other species. Proc Acad. Nat. Sci. Phila., 1868, pp. 96-119. • 1869. Seventh Contribution to the Herpetology of Tropical America. Proc. Amer. Philos. Soc, Phila., XI, 1869, pp. 147-169, Pis. 9-11. (Pebas, Ecuador, pp. 15-5-156.) 1870. Eighth Contribution to the Herpetologv of Tropical America. L. c, 1870, pp. 553-559. (Pebas, Ecuador,^ pp. 553-554.) Despax, R. 1910. Mission geodesique de I'Equateur. Collections recueillies par M. le Dr. Rivet. — Liste des Ophidiens et description des especes nou- velles. Bull. Mus. Hist. Nat., Paris, 1910, No. 7, pp. 368-376. 1911. Note preliminaire relative aux Lezards rapportes de I'Equateur par M. le Dr. Rivet. L. c, 1911, No^. 1, pp. 9-12. . Mission geodesique de I'Equateur. Collections recueillies par M. le Dr. Rivet. Batraciens anoures. L. c, 1911, No. 3, pp. 90-94. EsPADA, M. X. DE LA. 1871.' Zoologia. Faunae neotropicalis species qusedam nondum cognitse. Jorn. Sci. Math. Acad. Lisbon, III, 1871, pp. 57-65. EsPADA, D. M. Jimenez de la. 1872. Nuevos Batr^cios Americanos. Ann. Soc Espan. Hist. Nat., Madrid, I, 1872, pp. 8-5-88. EsPADA, . 1875. Viaje al Pacifico, Vertebr., Batr. an. Madrid, 1875, 4to pp. 1-208, Pis. 7. [Not consulted.] Garman, Samuel. 1892. On Reptiles collected by Dr. George Baur near Guayaquil, Ecuador. Bidl. Essex hist., XXIV, 1892, pp. 88-95. GtJNTHER, Albert. 1859. List of the Cold-blooded Vertebrata collected by Mr. Fraser in the Andes of Western Ecuador. Proc. Zool. Soc, London, 18-59, pp. 89-93. . Second List of Cold-blooded Vertebrata collected bv Mr. Fraser in the Andes of Western Ecuador. L. c, 1859, pp. 402-420, PI. 20. (Am- phibians and Reptiles, pp. 402-418, PI. 20.) 1860. Thu-d List of Cold-blooded Vertebrata collected by Mr. Fraser in Ecuador. L. c, 1860, pp. 233-240, PL 10. (Amphiliians and Reptiles, pp. 233-236.) O'Shatjghnessy, W. E. 1880. Description of a new species of Anolis, with notice of some other Species of that Genus from Ecuador. Proc Zool. Soc, London, 1880, pp. 491-493, PI. 49. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 175 O'SHAtJGHNESSY, W- E. LS81. An Account of the Collection of Lizards made by Mr. Buckley in Ecuador and now in the British Museum, with De- scriptions of the New Species. L. c, 1881, pp. 227-245, Pis. 22-25. Orton, James. 1871. Contributions to the Natural History of the Valley of Quito. Reptiles. Amer. Nat., V, 1871, p. 693. Peracca, M. G. 1897. Viaggio del Dr. Enrico Festa nell' Ecuador e region! vicine. Rettili. Boll. Mas. Zool. Anat. Comp. Torino, XX, 1897, No. 300, pp. 1-20. 1904. L. c, Rettili ed Amfibi. L. c, XIX, 1904, No. 465, pp. 1-41. Werner, Franz. 1901. Ueber Reptilien und Batrachier aus Ecuador und Neu Guinea. Verhand. Zool. Ges. Wien, II, 1901, pp. 593-614. PL 5. (Reptilien und Batrachier von Ecuador, pp. 593-602.) Venezuela. BoETTGER, O. 1893-94. Reptilien und Batrachier aus Venezuela. Bericht Senckenberg. Naturf. Ges., 1893-94, pp. 3.5-42. 1895. On .some Reptiles and Batrachians from Tobago. Journ. Trinidad Club, II, 1895, pp. 145-146. [Not consulted.] BouLENGER, G. A. 1903. On some Batrachia and Reptilia from Venezuela. Ann. Mag. Nat. Hist., London, (7), XI, 1903, pp. 481-484. 1905. Description of a new snake from Venezuela. L. c, (7), XV, 1905, p. 561. 1911. On a new tree-frog from Trinidad, living in the Societv's gardens. Proc. Zool. Soc, London, 1911, pp. 1082-1083, PI. 64. Cope, Edward D. 1884. Twelfth Contribution to the Herpetology of Tropical America. Proc. Amer. Philos. Soc, Phila., XXII, 1884, pp. 167-194, PI. (Aruba, Leeward Islands, pp. 180-181; Curacao, pp. 181-182.) Ernst. Adolfo. 1877. Estudios sobre la Flora y Fauna de Venezuela, Caracas, 1877, p. 279. [Short notice of reptile fauna.] 1887. Lacertilia venezuelana 6 sea, Enumeraci6n sistematica de las especies de Lagartos que hasta ahora se han encontrado en Venezuela. Rev. CienfMus. Venezuela, I, 1887-88, pp. 213-218. Lidth de Jeude, T. W. van. 1887. On a collection of Reptiles and Fishes from the West Indies. Notes Leyd. Mus., IX, 1887, pp. 129-139, PI. 2. [Mostly Amphibia and Reptiles from Aruba and Curacao.] Meek, Seth E. 1910. Notes on Batrachians and Reptiles from the Islands North of Venezuela. Field Mus. Nat. Hist. Pub., 140, Zool. Ser. VII, No. 12, 1910, pp. 415-418. Mole, R. R., and Urich, F. W., 1894. List of Reptiles and Batrachians of Trinidad. Journ. Trinidad Club, II, 1894, pp. 77-79. [Not consulted.] — — . Biological Notes upon some of the Ophidia of Trinidad, B. W. I., with a Preliminary List of the Species recorded from the Island. Proc. Zool. Soc, London, 1894, pp. 499-518. Peters, Wilhelm. 1877. Sammlung des Hrn. Dr. Carl Sachs in Venezuela. Monatsb. Ak. Wiss. Berlin, 1877, pp. 457-460, PI. I. Stejneger, Leonhard. 1902. An Annotated List of Batrachians and Reptiles Collected in the Vicinity of La Guaira, Venezuela, with Descriptions of Two New Species of Snakes. Proc U. S. Nat. Mus., XXIV, 1902, pp. 179-192, figs. 1-33. Werner, Franz. 1900. Ueber Reptilien und Batrachier aus Columbien imd Trinidad. Verhand. Zool. Bot. Ges. Wien., L, 1900, pp. 262-272. Yucatan. Barbour, Thomas, and Cole, Leon J. 1906. Vertebrata from Yucatan. Bull. Mus. Comp. Zool, L, 1906, pp. 101-1.59, Pis. 1-2. (Reptilia and Amphibia, pp. 147-155.) Cope, Edward D. 1806. Fourth Contribution to the Herpetology of Tropical America. Proc Acad. Nat. Sci., Phila., 1866, pp. 123-1.32. (I. The col- lection made by direction of the Governor of Yucatan, Jose Salazar vStarregni, by Arthur Schott, Naturalist of the Commission, and sent to the Smithsonian Institution, pp. 123-127.) 176 PROCEEDINGS OF THE ACADEMY OF [April, Cope, Edward D. 1885. A Contribution to the Herpetology of Mexico. Proc. Amcr. Philos. Soc, Phila., XXIT, 1884 (1885). pp! 379-404. (Cozume Island, off Eastern Yucatan, pp. 387-390.) GuNTHER, Albert. 1902. Reptilia and Batrachia, Bioloqia Centrali-Americana, pp. 1-326, Pis. 1-76. Explanation of Plates V-X. Plate V. — Upper figure, Bufo coeruleocellatus sp. nov. Lower figure, Bufo chanchanensis sp. nov. Plate VI. — Upper figure, Hyla chimbce sp. nov. Lower figure, Hyla riobambce sp. nov. Plate VII. — Upper figure, Hijla quitoe sp. nov. Lower figure, Hyla qidnquefasciaia sp. nov. Plate VIII. — Upper figure, Hylodes pagtnoe sp. nov. Lower figure, Hyloxalus huigrce sp. nov. Plate IX. — Upper figure, Rana brevipahnata rhoadsi subsp. nov. Lower figure, Rana brevipalmata Cope. Plate ^.^Anolis nitens bondi subsp. nov. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 177 NOTES ON THE TYPES OF SOME AMERICAN SPIDERS IN EUROPEAN COLLECTIONS. BY NATHAN BANKS. During a recent trip in Europe, the author had the opportunity to examine the types of a number of our spiders that are in European ■collections. A considerable number of these, especially those de- scribed by Count Keyserling, have been figured, and of these figures are given of only a few, as in most cases we know his species, and the types of most of his Theridiidse, described from the United States, -are in the Marx collection in the U. S. National Museum. Figures -are given of most of the other types that I was able to find, but in some cases where the species is alread}^ well known to American authors, I have not given figures. Few synonyms result from the examination, as in most cases the unknown forms were from the western or southern part of the country. The Koch material is dry and on pins; the colors of the Attidse are in most cases well preserved, but the structural characters of palpi and vulva can rarely be seen, unless the specimen could be relaxed. However, most of these are readily recognized, as they come from Pennsylvania, the spiders of which are familiar to Eastern •collectors. I have given the notes as they were made, rather than try to interpret, thus giving, others the same chance in using them. Species of Keyserling. Xysticus discursans Keys. A small male; the sides of the cephalothorax evenly dark, a large ;spot behind (barely divided) a median mark, and in front brownish, with a white band through the eye-region; femur, patella, and tibia ■of legs I and II evenly dark brown, tibia III and IV more maculate. Abdomen very dark, the three bands going across, leaving only narrow white marks. Xysticus limbatus Keys. Two females from Texas labelled type; one (fig. a) has legs pale, and a lyre-shaped pale mark on the cephalothorax; the other (fig. b), with more shrunken abdomen, is much darker, and the legs more mottled. 178 PROCEEDINGS OF THE ACADEMY OF [April, Xysticus limbatus Keys. Xysticus punctatus Keys. PI. XI, fig. 9. A male in Keyserling's collection labelled X. striatus type, is, I suppose, this species, as it agrees with his description and is from Georgia; the markings in the middle are hardly as heavy as those on the sides; it may be the male of X. variabilis. Xysticus 4-lineatus Keys. This has been correctly identified. Xysticus gulosus Keys. American identifications are correct. Xysticus emertoni Keys. Fig. 11. Female from Georgia; a large reddish species, the sides of cephalo- thorax with sinuate pale lines. Xysticus benefactor Keys. Fig. 18. Resembles A^. stomachosus; the cephalothorax with four brown spots behind; dorsum of abdomen brown, with a broad pale mark, indented three times on each side. Xysticus hamatus Keys. Fig. 7. A male from Kentucky, with very distinct abdominal pattern. Xysticus lenis Keys. Immature female. A lichen-gray-brown species, much mottled especially on legs; base of patella? above with two parallel black marks; five black spots on the cephalothorax. Xysticus stomachosus Keys. Four females, as we have identified it. Xysticus locuples Keys. Fig. 10. A large red-brown species; sides rather evenly red-brown; legs pale; the male has very long legs, very dark, the cephalothorax with four dark spots and an elongate median spot, the legs lined above with pale. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 179 Xysticus variabilis Keys. Fig. 6. One female, a small species, which resembles a young stomachosus. Synema nigromaculata Keys. This is our *S. parvula; the apical dark mark very plain, but not distinct on the venter nor around the spinnerets. S. parvula of Keyserling's collection has the white band on base of abdomen more distinct, and the dark band at apex goes down on venter and forms a ring around the spinnerets. No difference in .structure as far as I can see. Misumena spinosa Keys. Fig. 2. Very similar to M. asperata. Misumena georgiana Keys. Fig. 16. The cephalothorax shows a white X-mark very distinctly; the femora are rather short. Tmarus griseus Keys. Is a female lacking one moult of maturity, the femora somewhat marmorate. Tmarus floridensis Keys. Appears to be T. griseus, a mature female, but legs all pale. Ebo oblonga Simon. Fig. 4. Femur II not as long as the abdomen, tibia II as long as femur; cephalothorax white, brown on the sides, but the margins pale. Two females and a male, none Cjuite mature. Philodromus praelustris Keys. Fig. l. The female is immature; the male is figured. Philodromus marxi Keys. Fig. 17. The cephalothorax very broad; it is close to P. ornatus and perhaps the same; the Wisconsin specimen seems surely P. ornatus, but the others are probably an allied species. Philodromus satullus Keys. Fig. 5. A small, even graj' species; legs III and IV with a dark line along lower outer side on femur, tibia, and patella, most distinct on the latter; similar line, but fainter, on the lower posterior side of leg II. Philodromus expositus Keys. Fig. 12. All femora clotted below as in figure; the cephalothorax a uniform grayish-brown; and so probably not P. signatus Blackwall. liinyphia galbea Keys. Plate XII, figs. 28, 31. Looks like a large Bathyphantes, and the vulva is on the same plan. 180 PROCEEDINGS OF THE ACADEMY OF [April^ Pachygnatha furcillata Keys. Fig. 3. . One female. The mandibles show two large teeth on front of groove and two smaller behind the groove, but it appears to be P. brevis Emer. {Xanthostoma Koch.) Species of Simon. Glenognatha emertoni Simon. Fig. 22. The figures will serve to identify this striking species. Azilia vagepicta Simon. Fig. 14. The venter has a large yellow spot on the middle, and one npar the spinnerets; tibiae I and II with three broad dark bands. Cicurina robusta Simon. Plate XIII, fig. 32. Several females, with characteristic vulva. Cicurina nevadensis Simon. Fig. 44. One female; pale, with four dark chevrons; a little larger than C. tersa. Vulva not deeply colored. Cicurina tersa Simon. Figs. 45, 48. Male and females. Abdomen pale, with only a few blackish marks forming incomplete herring-bone marks. Cicurina atomaria Simon. Fig. 43. Three females. A very dark species, of medium size; legs brown (not reddish), abdomen and venter with many dark chevrons and streaks, sternum dark. Cicurina simplex Simon. Fig. 33. Several females, with a very long vulva. Cicurina ludovicina Simon. Fig. 33. Several females, the vulva is very broad. Cybaeus pusillus Simon. Figs. 34, 40. This is a Cicurina, as Simon has recently recognized. Cybaeus morosus Simon. Fjg. 37. A small dark species, several females. Cybaeus reticulatus Simon. This is an extremely common spider on the west coast up to Alaska, and already well known in this country. Coelotes bimucronatus Simon. Fig. 46. A large, dark species, with the tibia and metatarsi darker than the tarsi. One male. Cryphoeca peckhami Simon. Fig. .36. Looks like a small, pale Cicurina. The P. M. E. their diameter 1913.] NATURAL SCIENCES OF PHILADELPHIA. 181 apart, and closer to the smaller P. S. E. Abdomen pale; very- hairy, with a few dark bands on the apical part; much as in some Cicurinas. Tegenaria emertoni Simon. Figs. 39, 41. Many pale marks on basal part of abdomen, but dark at the tip. Male and female. Tegenaria nana Simon. Fig. 47. A small pale species, with markings similar to those of Cicurina arcuata on the abdomen. Two females. Amaurobius pictus Simon. Fig. 24. As we have identified it, with many marks on the abdomen. Amaurobius severus Simon. Fig. 27." The abdomen above has only four pale basal spots. Amaurobius nevadensis Simon. Fig. 20. As large as A. severus, but the abdomen of the female has no pale marks on the base, but in male there is one each side. Plectrurys tristis Simon. Fig. 29. The male palpus is figured. Physocyclus dugesi Simon. Fig. 25. One male, the palpus is very complicated. Megamyrmecion californicum Simon. Fig. 13. One immature female, but the same as I have identified from California. Sergiolus cyaneiventris Simon. Fig. 8. One female. Cephalothorax and legs all reddish, abdomen blackish, a narrow white band across middle, and just behind it are the two dark impressed lines; all femora with very stout bristles; no dorsal groove. Castianeira bicalcarata Simon. Figs. 21, 26. One male. Cephalothorax yellowish -brown; abdomen small, pale; legs slender, yellowish. Mandibles large and stout; sternum as Inroad as long. Maypacius floridanus Simon. Fig. 30. A slender species like a Tibellus, the abdomen spotted beneath, spots on the mandibles, and femora and tibia I dark beneath, spotted in front. Not mature. Titiotus californicus Simon. Fig. 23. The head resembles an Amaurobius; a very large species, legs 182 PROCEEDINGS OF THE ACADEMY OF [April, long, with long spines, those under tibia I a little longer than the width of that joint; the abdomen is shrunken. Sosilaus spiniger Simon. Fig. 19. A very striking little species; the eyes on black spots. Sosippus californicus Simon. Fig. 15. Cephalothorax entirely dark, no pale median stripe, but rather paler toward margins; abdomen pale, with broad dark stripe above, indented on the sides with faint pale marks, and in male with a lateral dark stripe above, so the abdomen appears dark, with two pale longitudinal stripes; venter pale; metatarsi and tarsi I and II very long and with very long hair and long scopulas. Species of Becker. Agelena hentzi Becker. Fig. 42. Three specimens, one (a female) mature; a pale, moderate-sized specimen of A. ncevia. Singa van Bruysellii Becker. A male, but palpus is so bent under that I cannot see the structure. The head is prominent, projecting in front; femur I is hairy, with only a few spines, none as long as the width of the joint; this joint is very dark near the tip, darkening gradually from near the base which is pale. Venter has four white spots, two a little before the spinnerets and surrounded by black, and one each side of the lung- slits, further apart than the other two. Theridium glaucescens Becker. Two specimens (females) ; it is what Keyserling has so identified, and is not uncommon in the Atlantic States. Lycosa febriculosa Becker. This is the young of L. aspersa or L. hellus. The cephalothorax with a narrow median pale line from eye-region. Abdomen with outline of a basal spear-mark, and irregular dark spots behind; venter heavily spotted. Legs pale, not distinctly marked, not very long; sternum dark, with a median pale stripe not reaching to the tip. Lycosa exalbida Becker. This has been recorded from the United States, but erroneously; it is from Brazil; it looks much like a half-grown Ardosa cinerea. There is a spine at middle above on tibise III and IV, but none at the base. 1913.] natural sciences of philadelphia. 183 Species of Koch. Corinna tricolor Koch. One female, A. M. E. closer to A. S. E. than to each other, P. M. E. about three diameters apart, closer to P. S. E. A distinct species. Corinna amoena Koch. A female is ornata Htz. Cephalothorax reddish, femur I blackish, hind tibia and patella banded. Corinna cingulata Koch. Two females are bivittata Keys. ; two bands on abdomen, hind legs lined, femur I dark on base, rest pale. Hegalostrata venifica Karsch. One male ; a tooth at base of fang, two large teeth on the paturon, outer one curved forward; tibial process of male palpus is about three times as long as broad, as broad at tip as at base, the tip ob- liquely truncate. Xystious luctans Koch. Not in the Berlin Museum, although there are several species from Carolina, but not labelled, as stomachosus, gulosus, and Coria- rachne versicolor. Agelena pennsylvanica Koch. Three specimens; are our common A. ncevia, one is a good-sized, well-marked female, the two others are not mature. Teratodes depressus Koch. I did not find in the Berlin collection, but there is no doubt as to what it is from the figure and description. Pachygnatha tristriata Koch. P. xanthostoma Koch. In the Berlin Museum are four specimens behind a label "Pennsyl. Zimm.," but no species label, these are his tristriata according to the description, and are what Emerton has so identified. Following this is a label ''tristriata" and " Pennsjd. Zimm."; behind these labels are seven specimens of our P. hrevis. There are no other American Pachj^gnatha in the collection. The name labels have been put on after Koch's time, the locality labels are original. It is therefore evident that the label "tristriata" has been misplaced, and that the seven specimens labelled "tristriata" are Koch's xanthostoma, since they agree with his description, and that P. xanthostoma is P. hrevis. 13 184 PROCEEDINGS OF THE ACADEMY OF [April, Epeira hispida Koch. Two dry males. Tibia I curved at base, slender; tibia II thick- ened at end and very spinose, the metatarsus curved at the base. The body and legs with yellowish hair, tibia I dark at base -and on middle. Epeira ravilla Koch. One dry female, the abdomen shrunken and partly destroyed. Cephalothorax densely long white-haired. Femora I and II black, other joints reddish-brown to yellowish, dark on tips of tibia I; erect spines on femur I not as long as thickness of the joint; femur III shows above a pale line margined with dark ; all legs with much white hair. A large species. Gasteracantlia pallida Koch. Not in the Berlin Museum. Phidippus carolinus Koch. A large species, female, densely white-haired. Mandibles green, palpi and clypeus with very long white hair; cephalothorax mostly white-haired; legs not plainly banded, but leg T has black hair at the apex of the tibia, the rest of the fringe is white; hind tibia very plainly black at tip; venter with a narrow, black, median stripe, but elsewhere densely white.-haired ; above the abdomen is red each side behind, separated by black, and a white spot in front. Phidippus asinarius Koch. One female; this is plainly P. mystaceus Hentz; the white spots on cephalothorax are plain, the mandibles red-brown, venter all white-haired. Phidippus testaceus Koch. Two specimens, one badly rubbed and may not be the same as the other, this latter is probably P. podagrosus {multiformis). Mandibles greenish, clypeus with yellowish hair, tips of patellae and tibiae dark; venter with pale median stripe, dark each side of this, and then the outer sides pale. Phidippus smaragdifer Koch. Two from New Orleans; are audax, not variegatus. The label says '^variegatus Lucas," so all labels were probably written some time after Koch described the species. Phidippus lunulatus Koch. A male ; the cephalothorax shows a white band coming up on each side ; mandibles green ; leg I with long black fringe on tibia, long white hair on inner side of patella, and long white hair on bases of 1913.] NATURAL SCIENCES OF PHILADELPHIA. 185 metatarsus and tarsus, rest black-haired; hind legs plainly banded; femur of male palpus white-haired above. It is Ph. otiosus Htz. Phidippus elegans Koch. A young female; mandibles rather reddish, dorsum of abdomen with a median stripe of greenish scales, and some green scales in front. It is probably Ph. multicolor Htz. Phidippus purpurifer Koch. Male and female from "Amer. Sept., Bescke," so quite probably not from the United States. It is not Ph. audax. A very large species; purple mandibles, the wrinkles on them not as continuous as in audax, palpus with white hair, clypeus snow-white, tibia I jet- black with a black fringe, venter wholly black, dorsum of abdomen marked much like audax, but a distinct white basal band. Phidippus togatus Koch. A female. Besides the three white spots, there is a white i)and around the abdomen above, and on the venter a broad black median stripe margined with white; mandibles green above, blue near tips; a hair tuft in front of dorsal eyes, and behind anterior lateral eyes are many rather scattered bristles; white hair on patellae, and on bases of tibiae and metatarsi I and II ; on the hind legs the basal half of tibia and part of metatarsus are plainly pale, rest black. Phidippus paludatus Koch. Red only above, and not reaching eyes; abdomen with a white band at base and four spots behind white, venter dark with tAvo pale median lines ; mandibles dark red-brown on the base, paler toward the tip; no hair tufts, but long hairs all over the cephalo- thorax; clypeus dark. A male, palpus bent under and perhaps not quite adult. Phidippus regius Koch. This Cuban species, as I have identified it. IMandibles strongly wrinkled and green; clypeus densely white-haired; legs plainly banded, tarsi I mostly black, metatarsus pale all over; hair tufts in front of dorsal eyes. Phidippus auotus Koch. A female. Mandibles faintly green, clypeus with long white hairs, a hair-tuft in front of dorsal eyes, leg I without any long fringes; abdomen with bright red hair above, a basal white band, behind is probably a black stripe, but here the abdomen is broken, sides dark, venter with dark median stripe. 186 PROCEEDINGS OF THE ACADEMY OF [April, Phidippus electus Koch. A young, half-grown female. Mandibles scarcely gr£en on the apical part, clypeus white-haired, legs with many short white hairs; abdomen shrunken, some metallic scales behind, with much white on the sides above, venter with a broad black median stripe, and white hairs each side. Phidippus alchymista Koch. Male and female, is Ph. audax Hentz; is marked in every way like his concinnatus. Fhidippas concinnatus Koch. A male, is Ph. audax; spots on abdomen are snow-white, white hair on inner side of patella I, tibia I with black fringe below. Phidippus dubiosus Koch. One young specimen, is audax Hentz. Phidippus personatus Koch. . Four specimens, all are young Ph. audax; the spots on abdomen are yellowish. Phidippus mundulus Koch. Three specimens; two are surely Ph. audax not mature; the other is much rubbed and has some green metallic scales on abdomen, and perhaps Ph. multicolor Htz. Plexippus rufus Koch. One specimen, is Dendryphantes militaris. Plexippus bivittatus Koch. A young, not half-grown specimen of Phidippus rufus Hentz. Plexippus undata Koch. A male, Maria vittata, which is colored as in the female. Plexippus albovittatus Koch. Two young rubbed specimens, appear to be Dendryphantes militaris; clypeus white haired, cannot see any marks on the abdomen, which has white scales on it; the mandibles are red-brown. Eris aurigera Koch. Four specimens, male, are Dendryphantes militaris Hentz. Euophrys leucophaea Koch. One male, is Dendryphantes octavus Hentz {mstivalis Em.). Euophrys humilis Koch. One female, not quite mature, is Dendryphantes militaris Hentz. Euophrys amabilis Koch. A young female, is young of Phidippus podagrosus Hentz {multi- formis Emer.). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 187 Euophrys obfuscata Koch. A female, is Habrocestum pulex. Msevia aurulenta Koch. One, is Tutelina elegans Hentz. Maevia annulipes Koch. One, very small and young; cephalothorax very low and flat; the abdomen so shrunken and wrinkled that one can see no markings, venter all pale; may be young of Mcevia vittata Hentz. Maevia pencillata Koch. Three males in good condition, are M. niger Htz. The three tufts on head are very distinct. Maevia sulphurea Koch. One, abdomen gone, but appears to be Wala mitrata Hentz. Maevia pallida Koch. One, also Wala mitrata Hentz. Maevia tibialis Koch. One, in good condition, our Admestina as already so identified. Maevia lineata Koch. One male, in good condition, our Metacyrba, long known under this name. Fhiale modesta Koch. One female, nearly all red, a basal yellow band on abdomen, venter pale in the middle, is Phidippiis cardinalis Htz. Maevia cristata Koch. One male from Pennsylvania, in good condition, is Tutelina elegans Hentz. The crest each side of head and the fringe on top of tibia I are very distinct. Marpissa varia Koch. This is a half-grown specimen of M. undata DeGeer; one specimen. Callithera aulica Koch. One male and five females, are Salticus scenicus. Janus gibberosus Koch. Is Sijnemosijna formica Hentz, as already so placed. Janus albocinctus Koch. One adult male glued on a point. A very small species, with flat cephalothorax, pars cephalica dark; abdomen dark, with a white cross-band; leg I rather slender, but heavier than the others, a faint dark line above on tibia I, and side of hind patella dark. This is 188 PROCEEDINGS OF THE ACADEMY OF lApHl, evidently Peckhamia scorpiona Htz., so for our Myrmarachne I propose Myrmarachne hentzi n. n. Salticus ephippiatus Peck, Emer. ((not Hentz). SaUicus albocinctus Banks (not Koch). Explanation of Plates XI, XII, XIII. Plate XI. Fig. 1. — Philodromus prcelustris. Fig. 2. — Misumena spinosa, palpus and abdomen. Fig. 3. — Pachygnatha furcillata, abdomen and mandible. Fig. i.—~Ebo oblonga, abdomen. Fig. 5. — Philodromus satullus, leg. Fig. 6. — Xi/sticu.s }'(irinnurnhiNs pnius, vulva. Fig. 2.5. — Phi/s,iri/rh,s ,li)i/i'.si\ palpus. Fig. 26.—i'asli,u,rini Inralcarata. Fig. 27. — Amaurobius severus, vulva. Fig. 28. — Linyphia galbea, vulva. Fig. 29. — Plectrurys tristis, palpus. Fig. 30. — Maypacius floridanus, eyes. Fig. 31. — Linyphia galbea, abdomen. Plate XIII. Fig. 32. — Cicurina robusla, vulva. Fig. 33. — Cicurina ludovicina, vulva. Fig. 34. — Cicurina pusilla, vulva. Fig. 35. — Cicurina simplex, vulva. Fig. 36. — Cryphoeca peckhami, vulva, leg. Fig. 37. — Cybceus morosus, vulva. Fig. 38. — Cicurina simplex, palpus. Fig. 39. — Tegenaria emertoni, vulva, spinneret. Fig. 40. — Cicurina pusilla, palpus. Fig. 41. — Tegenaria emertoni, palpus. Fig. 42. — Agelena hentzi, vulva. Fig. 43. — Cicurina atomaria, vulva. Fig. 44. — Cicurina nevadensis, vulva. Fig. 45. — Cicurina tersa, vulva. Fig. 46. — Calotes bimucronatus, palpus. Fig. 47. — Tegenaria nana, eyes, vulva. Fig. 48. — Cicurina tersa, palpus. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 189 ON A COLLECTION OF BIKDS OBTAINED BY THE FRANCIS E. BOND EXPEDI- TION IN THE ORINOCO DELTA AND PARIA PENINSULA, VENEZUELA- BY WITMER STONE. During the early part of 1911 Mr. Francis E. Bond conducted an expedition to the coast of Venezuela, mainly in the delta of the Orinoco. He was accompanied by Messrs. Stewardson Brown, Con- servator of the Botanical Section of the Academy, and Thomas S. Gillin, of Ambler, Pa. Among the collections obtained by the expedition and generously presented by Mr. Bond to the Academy is a series of 504 bird skins, prepared almost entirely by Mr. Gillin from specimens shot bj- himself and other members of the party. It has been my privilege to study this collection, a complete list of which is presented herewith. In order to better understand the relative position of the several localities, I have drawn up a brief itinerary of the expedition from notes furnished me by Mr. Brown. Starting from Port of Spain, Trinidad, the party crossed to the peninsula of Paria, stopping at Cariaquito on the south shore. Collecting was carried on here January 13-22, mainly close to the coast and never more than a mile or two inland. Crossing the gulf, they stopped at Pedernales, January 25-27, and then sailed up the Vagre River, a sort of confluence of several streams, and thence up the Guanipa, arriving at the village of that name on February 2. On February 6, they returned to the Vagre, and on the 8th went up the Manimo to the mouth of the Uracoa, which they reached on February 10. They then ascended this stream to La Pedrita, where they remained February 12-18, and then returning to the Manimo followed it to Tucapeta, some forty miles from the Orinoco itself. Here they spent February 22-23, and then returned down the Manimo to Pedernales, stopping at the Corisal, February 25-28, and reaching the coast on March 4. Thence they returned to Cariaquito, where they stopped March 10-18 to make additional collections before crossing to Trinidad. In a region so long familiar to bird collectors as the Orinoco delta it is not surprising that no new forms were obtained, but some of the 190 PROCEEDINGS OF THE ACADEMY OF [April, records both from this district and from Cariaquito considerably extend the range of the species, and in view of the lack of definite localities in the case of early collections, the present list will, it is hoped, be of value in ascertaining the exact range of the various Venezuelan species. It will be noticed that 101 species were obtained only at localities in the delta country, while 48 were found only at Cariaquito on the Paria peninsula, and 23 were foUnd in both regions. These figures mean little, however, as the collection is not sufficiently comprehen- sive to warrant any general deductions on distribution. A certain number of the Cariaquito species, such as Crypturus columhianus, Ceryle americana, Microrhopias grisea intermedia, Dendrocinda meruloides phceochroa, Myiozetetes similis columhianus, Chiroxiphia lanceolata, Thryophilus rufalhus castanonotis, Pachysylvia aurantiifrons saturata, Compsothylypis pitiayumi elegans, Basileuterus auricapillus olivascens, Tanagra trinitatis, Tangara desmerestii, and Icterus auri- capillus, are mainly restricted to the mountainous north coast of Venezuela, extending eastward from Colombia. There are, however, many others taken only at Cariaquito which are well known to range also over the delta region. Notes on the color of the tarsi, irides, etc., have been taken from Mr. Gillin's labels, while a few notes on distribution and abundance received from Mr. Brown bear his initials. TINAMID^. 1. Crypturus columbianus Salvadori. Colombian Tinamou. Crypturus columbianus Salvadori, Cat. Bii'd Brit. Mus., xxvii, p. 51.5, 1895 (Neche, Antioquia). Cariaquito, cf' January 17 (58,713), & 9 March 16 (58,712, 58,714). These specimens are related to C. boucardi and appear referable to the present form, although I have not been able to compare them with authentic specimens. "Legs red." ORACID^. 2. Crax alector Linn. Crested Curassow. Crax Alector Linnaeus, Syst. Nat., i, Ed. XII, p. 269, 1766. ("In America Calidiore" = Cayenne.) Cano Vagre, 9 January 29 (58,730). "Cere orange-yellow, beak and legs bluish lead color, iris hazel." 1913.] NATURAL SCIENCES OF PHILADELPHIA. 191 COLUMBID^. 3. Columba rufina Temm. and Knip. Rufous Pigeon. Columha Rufina Temminck and Knip, Pig. i, p. 59, PI. 24, 1808-11 (French Guiana). Corosal, a^ February 27 (58,710). Settlement on Vagre River, cf January 28 (58,709). "Iris red, legs and feet dark carmine." This was the common pigeon of the delta country and occurred in immense flocks (S. B.). 4. Scardafella ridgwayi Richmond. Ridgway's Dove. Scardafella ridgwayi Richmond, Proc. U. S. Nat. Miis., xviii, p. 6G0, 1896 (Margarita Island). Cano Corosal, 9 9 cf February 25 (58,705-7), 9 February 26 (58,704). "Iris red-brown." 5. Chsemepelia rufipennis (Bonap.). Rufous-winged Ground-Dove. Columbina rufipennis Bonaparte, Consp. Av. ii, p. 79, 1855 (Carthagena, Colombia). Pedernales, cf January 26 (58,708), and another without data. "Legs flesh-color." 6. Leptotila verreauxi insularis Richmond. Margarita Dove. Leptotila insularis Richmond, Proc. U. S. Nat. Mus., xviii, p. 509, 1895 (Margarita Island). Cariaquito, d" March 16 (58,711). "Iris pale yellow, feet and skin around the eye sky blue." OPISTHOOOMIDiE. 7. Opisthocomus hoazin (P. L. S. Muller). Hoatzin. Phasianus Hoazin P. L. S. Mi'iller, Syst. Nat. Siippl., p. 125, 1776 (Cayenne). Guinipa River, three specimens January 31 (58,703, 58,802-3). "Iris carmine, skin around the eye lead color." Occurred along all the streams as far as we went. Most abundant above the mangrove area. Came to feed at sunset on the ground in the savannas (S. B.). RALLID^. 8. Aramides cajanea (P. L. S. Muller). Cayenne Wood Rail. FuUca Cajanea P. L. S. Miiller, Natur.syst. Suppl., p. 119, 1776 (Cayenne). Cariaquito, 9 January 22 (58,716), d" 9 March 12 (58,715 and 58,717). Caiio Vagre, d" January 29 (58,718). "Eyelids and legs red-pink, bill greenish, yellowish at base." 192 PROCEEDINGS OF THE ACADEMY OF [April, LARID^. 9. Phaetusa chloropoda (Vieill.). Great-billed Tern. Sterna chloropoda Vieillot, N. Diet. d'Hist. Nat., xxxii. p. 171, 1818 (Para- guay). Manimo River, 9 & & February 9 (58,742-4). La Pedrita, Rio Uracoa, 9 February 15 (50,741). "Bill greenish-yellow, feet green." 10. Rynchops nigra cinerascens Spix. Black-tailed Skimmer. Rhynchops cinerascens Spix, Av. Bras, ii, p. 80, PI. cii, 1825 (Amazon River). . La Pedrita, Rio Uracoa, 9 February 15 (58,740). "Legs and base of bill carmine." CHARADRIID^. 11. Belonopterus cayennensis (Gmel.). Cayenne Lapwing. Parra cayennensis Gmelin, Syst. Nat., I, ii, p. 706, 1789 (Cayenne). La Pedrita, Rio Uracoa, cf d' 9 c^ February 11 (58,734-7). "Tip of bill and feet black." Occurred in immense flocks on the Uracoa (S. B.). SOOLOPAOIDiE. 12. Actitis macularia (Linn.). Spotted Sandpiper. Tringa macularia Linnaeus, Syst. Nat., Ed. XII, i, p. 249, 1766 (Pennsyl- vania). Cariaquito, d' March 3 (58,731). 13. GallinagO brasiliensis (Swains.). Brazilian Snipe. Scolopax Brasiliensis Swainson, Faun. Boreal. Am., p. 400, note 1831 (Brazil), Cano Corosal, d' 9 February 25 (58,732-3). These birds have the first or outer secondaries longer than the primary coverts and seem to belong to this species rather than to G. paraguaice, which Bulepsch and Hartert record from the Orinoco Region (Novit. Zool., IX, p. 130). JAOANID^. 14. Jacana jacana (Linn.). Jacana. Parra Jacana Linnaeus, Syst. Nat., Ed. XII, i, p. 259, 1766 (South America). Cano Corosal,. 9 February 25 (58,719). La Pedrita, Rio Uracoa, 9 February 15, cf cf cf February 11 (58,720-3). Common in the savanna country at La Pedrita on floating vege- tation (S. B.). "Shield and base of bill deep carmine red." 1913.] NATURAL SCIENCES OF PHILADELPHIA. 193 EURYPYGID^. 15. Eurypyga helias (.Pall.). Sun Bittern. Ardea helias Pallas, Neue Nord. Beytr., ii, p. 48, PL iii, 1781 (Surinam). Guinipa River, 9 c^ 9 c^ January 31 (58,725-8). Vagre River, d" January 29 (58,724). Occurred mostly on mud flats bordering the mangroves ; very tame •(S. B.). "Iris carmine, lower mandible and legs yellow." IBIDID^. 16. Guara rubra (Linn.). Scarlet Ibis. Scolopax rubra Linnseus, Syst. Nat., Ed. X, i, p. 145,1758 ("America" = Guiana) . Isla Morocotico, Manimo River, March 3 (58,763). Isla Plata, Manimo River, March 4 (58,762, 58,791-5). "Legs and beak pinkish-white, iris grayish-stone." Very abundant on the Manimo, etc., ))ut not common above tidewater (S. B.). PLATALEID^. 17. Ajaia ajaja (Linn.). Roseate Spoonbill. Platalta Ajaja Linnaeus, Syst. Nat., Ed. X, i, p. 140, 1758 (South America). Isla Plata, ]\Ianimo River, cT March 4 (58,761). "Iris reddish, legs pink, beak flesh-colored." ARDBID^. 18. Ardea COCOi Linn. Cocoi Heron. Ardea Cocoi Linnaeus, Syst. Nat., Ed. XII, i, p. 237, 1766 (Cayenne). Cano Corosal, 9 February 27 (58,766). 19. Butorides striata (Linn.). Black-crowned Heron. Ardea striata Linnaeus, Syst. Nat., Ed. XII, i, p. 238, 1766 (Surinam). Manimo River, cf February 8 (58,729). 20. Nyctinassa violacea (Linn.). Yellow-crowned Night Heron. Ardea violacea Linnaeus, Syst. Nat., Ed. X, i, p. 143, 1758 (Carolina). Corosal, d" February 27 (58,759). Cariaquito, 9 March 14, cf 9 January 22, 9 January 14 (58,755-8). "Iris orange-yellow." 21. Tigrisoma lineatum (Bodd.). Tiger Bittern. Ardea lineata Boddaert, Tabl. PI. Enl., p. 52, 1783 (Cayenne). Guinipa River, cf & February 4 and January 31 (58,764-5). "Iris yellow, feet and skin at base of beak greenish." 194 PROCEEDINGS OF THE ACADEMY OF [April, PALAMEDEID^. 22. Anhima COrnuta (Linn.). Horned Screamer. Palamedea cornuta Linnaeus, Syst. Nat., Ed. XII, i, p. 2.32, 1766 (Brazil,.. Guiana). Manimo River, d" February 20 (58,767). Very common on the upper Manimo in the tops of tall trees (S. B.). "Iris reddish-yellow." PHALAOROOORAOIDu3E. 23. Fhalacrocoraz vigua (Vieill.). Brazilian Cormorant. Hydrocorax vigua Vieillot, N. Diet. I'Hist. Nat., viii, p. 90, 1817 (Paraguay). Jacopita, Manimo River, cf February 23 (58,738). "Iris white, skin on throat yellow." ANHINGID^. 24. Anhinga anhinga (Linn.). Anhinga. Plotus anhinga Linnaeus, Syst. Nat., Ed. XII, i, p. 218, 1766 (South America).. Cano Vagre, 9 January 28 (58,739). CATHARTID^. 25. Sarcorhamphus papa (Linn.). King Vulture. Vultur Papa Linnajus, Syst. Nat., Ed. X, i, p. 86, 1758 ("in India occiden- tali" = Brazil). Guinipa Village, 9 February 2 (58,751). FALCONIDuSl. 26. Circus buffoni (Gmel.). Long-winged Harrier. Falco Bujfoni Gmelin, Syst. Nat., I, i, p. 277, 1788 (Cayenne). La Pedrita, Rio Uracoa, a" February 13 (58,692). "Cere and edge of gape greenish -blue, legs orange-yellow, iri.s hazel." Hawks of all kind were most abundant in the savanna country on the Uracoa (S. B.). 27. Geranospizias caerulescens (Vieill.). Gray Crane-Hawk. Sparvius coerulescetis Vieillot, N. Diet. d'Hist. Nat., x, p. .318, 1817 (Soutb America) . Manimo River, d" cf February 18 and March 3 (58,701-2). "Iris carmine, cere black, lower mandible bluish, legs deep- orange." 28. Asturina nitida (Lath.). Shining Buzzard-Hawk. Falco nitida Latham, Ind. Orn., i, p. 41, 1790 (Cayenne). Boco Uracoa, Manimo River, d" February 24 (58,698). "Iris hazel, legs and cere yellow, beak blue." !1913.] NATURAL SCIENCES OF PHILADELPHIA. 195 :29. Rupornis magnirostris (Gmel.). Large-billed Hawk. Falco magnirostris Gmelin, Syst. Nat., I, i, p. 282, 1788 (Cayenne). Cariaquito, 9 9 January 14 and March 13 (58,699-700). Pedernales, cf March 6 and 9 January 26 (58,696-7). "Iris, cere, skin around eye, and legs yellow." :30. Busarellus nigricollis (Lath.). Black -collared Hawk. Falco nigricollis Latham, Ind. Orn., i, p. 35, 1790 (Cayenne). La Pedrita, & & February 13 (58,749-50). Cano Corosal, cf February 24 (58,745). "Cere, skin at base of bill and feet light blue, iris hazel." 31. Buteogallus aequinoctialis (Gmel.). Equinoctial Buzzard. Falco cequinoclialis Gmelin, Syst. Nat., I, i, p. 265, 1788 (Cayenne). Pedernales, cf March 6 (58,748). "Base of bill and skin around eye and feet yellow." 32. TJrubitinga urubitinga (Gmel.). Brazilian Eagle. Falco Urubitinga .Gmelin, Syst. Nat., i, p. 265, 1788 (Brazil). Cano Corosal, 9 February 28 (58,746). "Iris hazel, legs, skin around the eyes and cere yellow." 33. Urubitinga anthracina (Nitzsch). Mexican B!ack Hawk. Falco anthracinus Nitzsch, Syst. Pteryl., p. 83, 1840 (Mexico). La Pedrita, Rio Uracoa, (f February 13 (58,693). Cariaquito, 9 February 14 (58,752). "Iris brown, legs yellowish, cere greenish-yellow." The former specimen is in the slaty black plumage, the latter in the light striated stage. 54. Leucopternus albicoUis (Lath.). White-collared Hawk. Falco albicolHs Latham, Ind. Orn., i, p. 36, 1790 (Cayenne). Cariaquito, cf January 20 (58,753). "Iris hazel, legs lemon-yellow." 35. Herpetotheres cachinnans (Linn.). Laughing Hawk. Falco cachinnans Linnaeus, Syst. Nat., Ed. X, i, p. 90, 1758 ("South America ' ' = Cayenne) . Pedernales.. 9 March 6 (58,747). "Iris hazel, skin at base of bill yellow, legs yellow." 36. Rostrhamus SOCiabilis (Vieill.). Everglade Kite. Herpetotheres sociabilis Vieillot, N. Diet. d'Hist. Nat., .xviii, 1817, 318 (Cor- rientes and Rio de la Plata). Cano Corosal, cf Fel^ruary 24 (58,694). "Iris carmine, beak black, cere and skin around gape dull yellow, feet dull orange." 196 PROCEEDINGS OF THE ACADEMY OF [April, 37. Leptodon uncinatUS (Temm.). Red-collared Kite. Falco uncinatUS Temminck, PI. Col., i, Pis. 103-105, 1824 (Rio Janeiro). Cariaquito, 9 January 22 (58,689). "Iris white, feet yellow, skin above the eye greenish-yellow." 38. Elanus leucurus (Vieill.). White-tailed Kite. Milvus leucurus Vieillot, N. Diet. d'Hist. Nat., xx, p. 563, 1818 (Paraguay). La Pedrita, Rio Uracoa, cf d" February 15 and 13 (58,690-1). "Iris brilliant carmine, legs yellow, bill black, cere and edges of gape yellow." 39. Falco COlumbariuS Linn. Pigeon Hawk. Falco columbarius Linnaeus, Syst. Nat., Ed. X, i, 1758, p. 90 (Carolina). Cafio Corosal, 9 February 28 (58,695). BUBONID^. 40. Pulsatrix perspicillata (Lath.). Spectacled Owl. Strix perspicillata Latham, Ind. Orn., i, p. 58, 1790 (Cayenne). Cariaquito, 9 March 13 (58,754). " Iris yellow. " PSITTACID^. 41. Ara ararauna (Linn.). Blue-and-yellow Macaw. Psittacus Ararauna Linnseus, Syst. Nat., Ed. X, i, p. 96, 1758 ("South America" = Brazil). Guinipa Village, February 2, c/" 9 (58,800-1). 42. Aratinga aeruginoSUS (Linn.). Brown-throated Parrot. Psittacus oeruginosus Linnaeus, Syst. Nat., Ed. X, i, p. 98, 1758 ("'America' = Cayenne). Corosal, d" 9 February 27 (58,314-5). 43. Aratinga leucophthalmus (P. L. S. MuUer). White-eyed Parrot. Psittacus leucophthalmus P. L. S. Miiller, Syst. Nat., Suppl,, p. 75, 1776- (Guiana) . Buelte Triste, Manimo River, d" 9 February 21 (58,312-3). "Iris reddish-yellow." 44. Pyrrhura emma Salvad. Salvadori's Parrot. Pyrrhura emma Salvadori, Cat. Birds Brit. Mus., xx, p. 217, PI. i, 1891 (Caripe). Cariaquito, d" d' March 10, cf March 15, 9 January 20, 9 March 18 (58,307-11). "Iris yellow, legs black." 45. Psittacula passerina (Linn.). Blue-winged Parakeet. Psittacus passerinus Linnseus, Syst. Nat., Ed. X, i, p, 103,^1758 ("America'* = Guiana). Cafio Corosal, cT February 25 (58,316). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 197 46. Amazona amazonica (Linn.). Orange-winged Amazon. Psittacus amazonicus Linnseu-s, Syst. Nat., Ed. XII, i, p. 147, 17(36 (Suri- nam). Isla Marocotico, Manimo River, cf March 3 (58,301). Pedernales, 9 January 25 (58,302) . Vagre River, 9 January 28 (58,303). ' ' Iris yellowish-red. ' ' Immense flocks of Amazons went up the Manimo every evening to roost (S. B.). 47. Amazona ochrocephala (Gmel.). Yellow-headed Amazon. Psittacus ochrocephalus Gmelin, Syst. Nat., I, i, p. 339, 178S ("South America" = Colombia). Vagre River, cf January 29 (58,300). "Iris reddish-yellow." 48. Pionus menstruus (Linn.). Red-vented Parrot. Psittacus menstruus Linnseus, Syst. Nat., Ed. XII, i, p. 148, 176G (Surinam). Cariaquito, cT 9 March 10 (58,304 and 58,306), d" March 15 (58,305). "Iris drab." ALCEDINID^. 49. Ceryle torquata (Linn.). Great Gray Kingfisher. Alcedo torquata Linnajus, Syst. Nat., Ed. XII, i, p. 180, 1766 (Mexico). Manimo River, cT February 9 (58,331), c?" 9 9 February 10 (58,328-30), cf February 28 (58,332). "Legs greenish." 50. Ceryle amazona (Lath.). Great Green Kingfisher. Alcedo aynazona Latham, Ind. Orn., i, p. 257, 1790 (Cayenne). Manimo River, cT d^ February 10 and 19 (58,321-2). La Pedrita, Rio Uracoa, 9 February 17 (58,323). Cano Corosal, 9 February 25 (58,324). 51. Ceryle inda (Linn.). Spotted Kingfisher. Alcedo inda Linnseus, Syst. Nat., Ed. XII, i, p. 179, 1766 ("India oeciden- ■ tale " = Cayenne). Guinipa River, cf 9 February 3 (58,317-8). Vagre River, 9 9 February 29 (58,319-20). 52. Ceryle americana (Gmel.). Little Green Kingfisher. Alcedo americana Gmelin, Syst. Nat., I, i, p. 4.51, 1788 (Cayenne). Cariaquito, d' January 22 (58,326), 9 March 10 (58,325). Boca Uracoa, Manimo River, cf^ no data. 198 PROCEEDINGS OF THE ACADEMY OF [April, OAPRIMULGIDuE. 53. Chordeiles acutipennis (Bodd.). South American Nighthawk. Caprimidgns acutipennis Boddaert, Tabl. PI. Enl., p. 46, 1783 ("Guiana" = Cayenne). Cano Corosal , & & February 25 (58,336-7). 54. Nyctiprogne leucopyga (Spix). White-winged Nighthawk. Caprimulgus leucopygus Spix, Av. Bras., II, p. 3, 1823 (Shores of Amazon). Cano Corosal, cf February 27, 9 February 28 (58,334-5). 55. Nyctidromus albicollis (Gmel.). Parauque. Caprimulgus albicollis Gmelin, Syst. Nat., I, ii, p. 1030, 1789 (Cayenne). La Pedrita, Rio Uracoa, d^ February 10 (58,333). TROGONIDiE. 56. Trogon viridis Linn. Green Trogon. Trogon viridis Linnaeus, Syst. Nat., Ed. XII, i, p. 167, 1766 (Cayenne). Guinipa Village, d" 9 February 3 (58,338-9). Guinipa River, cf February 4 (58,340). Settlement on Vagre River, d^ January 29 (58,341). CUCULID^. 57. Coccyzus pumilus Strickl. Dwarf Cuckoo. Coccyzus pumilus Strickland, Jard. Contr. Orn., 1852, p. 28 (Trinidad). Corosal, d February 27 (58,346). "Iris and eyelids carmine, legs greenish." 58. Piaya cayana colombiana (Cab.). Colombian Chestnut Cuckoo. Pyrrhocorax colombiana Cabanis, Jour, fiir Orn., 1862, p. 170 (Cartagena). Cariaquito, cf January 13 (58,344). Guinipa River, cf January 30 (58,343) . Isla Morocatico, d March 3 (58,345). 59. Crotophaga ani Linn. Common Ani. Crotophaga Ani Linnaeus, Syst. Nat., Ed. X, i, p. 105, 1758 ("America" = Brazil). Cariaquito, cf January 17 (58,347). '60. Crotophaga major Gmel. Great Ani. Crotophaga major Gmelin, Syst. Nat., I, i, p. 363, 1788 (Cayenne). Pedernales, d d January 25, 26 (58,348-9). "Iris white or bluish-white." RAMPHASTID^. 61. Bamphastos monilis P. L. S. Muller. Ramphastos monilis P. L. S. Muller, Nat. Syst., Suppl., p. 82, 1776 (Cayenne). Guinipa Village, d 9 February 2 (58,359-60). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 199 These birds seem from the appearance of the bills to be similar to those upon which Berlepsch and Hartert have based R. hcEmato- rhynchus (cf. Novitates Zoologicse, IX, p. 99, 1902). 62. RamphastOS vitellinus Licht. Sulphur-and-white-breasted Toucan. Ramphastos vitellinus Lichtenstein, Verz. Doubl., p. 7, 1823 (Cayenne). Caiio Vagre, 9 January 28 (58,361). "Iris bluish-white, legs, skin around the eye and base of bill beauti- ful changeable blue." 63. Pteroglossus aracari roraimae Brabourne and Chubb. Roraima Aracari. Pteroglossus roraimcB Brabourne and Chubb, Ann. Mag. Nat. Hist., (8), X, p. 261, 1912 (Roraima). Guinipa Village, c^ 9 February 3 (58,350-1). Guinipa River, 9, January 31 (58,352). Settlement on the Vagre River, 9 February 7 (58,353). Cariaquito, cf 9 9 January 22 (58,354, 58,357-8), 9 March 10 (58,356), — January 16 (58,355). "Iris hazel." The commonest species of Toucan observed (S. B.). BUOOONID^. 64. BUCCO dysoni Scl. Dyson's Puff-bird. Bucco dysoni Sclater, P. Z. S., p, 193, 1885 (Honduras). Manimo River, 9 February 8 (58,369). 66. Bucco bicinctus (Gould). Two-banded Puff-bird. Tamatia bicinda Gould, P. Z. S., p. 80, 1836 ("Cayenne" = Venezuela). Guinipa River, cf February 3 (58,372). Buelta Triste, Manimo River, cf February 20, 9 February 21 (58,371, 58,370). "Iris yellowish-white, legs greeni.sh-blue. " GALBULIDiE. 66. Galbula ruficauda Cuv. Rufous-tailed Jacamar. Galbula ruficauda Cuvier, Regn. Anim., i, p. 420, 1817 (" Guiana " = Cay- enne). Pedernales, 9 January 26 (58,362). Guinipa Village, cf cf February 2 (58,363, 58,365), cf d' February 3 (58,364, 58,366). Manimo River, cf cf February 9 (58,367-8). "Feet greenish-yellow, beak black." 14 200 PROCEEDINGS OF THE ACADEMY OF [April, PIOID^. 67. Chrysoptilus punotigula punotipectus Cab. and Hein. Spot-breasted Woodpecker. Chrysoptilus punctipectus Cabanis and Heine, Mus. Hein., iv, p. 163, 1863 (Venezuela) . Cano Corosal, cf February 25 (58,385). 68- Centurus terricolor Berlepsch. Sombre Woodpecker. Centurus terricolor Berlepsch, Ibis, 1880, p. 113 (Orinoco district or Trinidad). Cariaquito, d" 9 January 14 (58,381-2). Guinipa Village, d" February 2 (58,384). 69. Celeus elegans hellmayri Berlepsch. Hellmayr's Woodpecker. Celeus elegans hellmayri Berlepsch, Novitates Zoologicae, xv, p. 272, 1908 (British Guiana). Guinipa River, 9 January 31 (58,383). "Iris carmine, bill and legs bluish-horn color." 70. Crocomorphus semicinnamoineus (Reichenb.). Yellow Woodpecker. Ceteris seinicinnamomeus ReichenhsLch, Scans. Picinae.p. 407, 1854 (Venezuela). Cariaquito, 9 January 12 (58,376), 9 January 18 (58,377), cf March 12 (58,378). La Pedrita, Rio Uracoa, 9 February 13 (58,375). Buelta Triste, Manimo River, d February 20 (58,373). Settlement, Vagre River, 9 February 28 (58,374). ''Iris red, legs lead color, bill yellow." 71. Campephilus melanoleuoos (Gmel.). Black-and-white Woodpecker. Picus melanoleuoos Gmelin, Syst. Nat., I, i, p. 426, 1788 (Surinam). Peclernales, d January 26 (58,380). One other cf without data. "Iris yellow." 72. Ceophloeus lineatus (Linn.). Lineated Woodpecker. Picus lineatus Linnseus, Syst. Nat., Ed. XII, i, p. 174, 1766 (Cayenne). Cariaquito, cf January 16 (58,379). "Iris white, bill lead color." TROOHILID^. 73. Glauois hirsuta (Gmel.). Hairy Hermit. Trochilus hirsutus Gmelin, Syst. Nat., I, i, p. 490, 1788 (Brazil). Cariaquito, 9 March 16 (58,410). 74. Campylopterus ensipennis (Sw.). Blue-throated Sabre-wing. Trochilus ensipennis Swainson, Zool. Illustr., ii, PI. 107, 1821-2 ("South America " = Venezuela). Cariaquito, 9 January 14 (58,399). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 201 75. Florisuga mellivora (Linn.). Great Jacobin. Trochilus mellivorus Linnaeus, Syst. Nat., Ed. X, i, p. 121, 1758 ("India" = Guiana). Cariaquito, 9 January 14 (.58,418), 9 March 16 (58,414), 9 cf 9 9 9 March 17 (58,415-19), cf" cf d^ March 17 (58,385-7), and 3 cf without data. 76. Thalurania refulgens Gould. Refulgent Wood-nymph. Thalurania refulgens Gould, P. Z. S., 1852, p. 9 (" Unknown "= Venezuela). Cariaquito, d^ d" 9 January 16 (58,409, 58,413, 58,421), d March 15 (58,408), d March 18 (58,420). Isla de Morocatico, Manimo River, March 3 (58,404) and two males without data. 77. Colibri delphinae (Less.). Brown Violet-ear. Ornysmya Delphince Lesson, Rev. Zool., 1839, p. 44 ("loc. unknown " = Guiana). Cariaquito, cf January 14 (58,412). 78. Anthracothorax nigricoUis (Vieill.). Violet-tailed Mango. Trochilus nigricoUis Vieillot, N. Diet. d'Hist. Nat., vii, p. 349, 1817 (Brazil). Guinipa Village, 5 cf February 2 and 3 (58,390-4). Cariaquito, cf March 17 (58,389). Jocopita, 9 9 February 23 (58,405-6). 79. Anthracothorax gramineus (Gmel.). Green-throated Mango. Trochilus gramineus Gmelin, Syst. Nat., I, i, p. 488, 1788 ("no. loc" = Guiana). Pedernales, d d January 27 (58,395-6) and one other without data. 80. Agyrtria chionopeotus (Gould). White-breasted Emerald. Thaumatias chionopectus Gould, Monogr. Trochil, v, PI. 293 (1859) (Trinidad). Guinipa Village, d February 2 (58,429). Pedernales, d January 27 (58,431). 81. Agyrtria fimbriata (Gmel.). Lesson's Emerald. Trochilus fimbriatus Gmelin, Syst. Nat., I, i, p. 493, 1788 (Cayenne). Boco Uracoa, Manimo River, cf February 10 (58,426). Buelta Triste, Manimo River, cf February 20 (58,432). Jocopita, Manimo River, cf cf February 22 and 23 (58,427-8). Cafio Corosal, 9 cf February 25 and 28 (58,402-3). 82. Saucerottea erythronota feliciae (Less.). Felicia's Erythronote. Ornysmya Felicire Lesson, Rev. Zool. 1840, p. 72 (San Jose dist. Brazil). Cariaquito, 9 January 14 (58,425), cf 9 January 16 (58,433, 58,436). & January 18 (58,424), d cf March 13 and 16 (58,401, 58,434). Three without data. 202 PROCEEDINGS OF THE ACADEMY OF [April, 83. Hylocharis cyanus viridiventris Berlepsch. Green-vented Sapphire. Hylocharis cyanea subsp. viridiventris Berlepsch, Ibis., 1880, p. 113 (Merida, Venezuela). Cariaquito, o" March 17 (58,435). 84. Chrysuronia oenone (Less.). Lesson's Sapphire. Ornysmya oenone Lesson, Hist. Nat. Ois.-Mouches, Suppl., p. 157, 1832 (Trinidad). Cariaquito, cf d^ March 10 (58,397-8). 85. Chlorestes notatus (Reich.). Blue-ehianed Sapphire. Trochilus notatus Reichenbach, Mag. des Thierreichs (Erlange), i, Abth. 3, p. 129, 1795 (Cayenne). Cariaquito, 9 9 January 14 (58,422-3), d^ c^ March 13 and 17 (58,437,58,400). Guinipa Village, cT February 2 (58,430) and two males without data. 86. Anthoscenus superba (Shaw). Long-billed Star-throat. Trochilus superbus Shaw, Nat. Misc. xiii, PI. 517, 1802 ("South America" = Colombia). Cariaquito, d' juv. March 10 (58,411). FORMIC ARIID^. 87. Thamnophilus punctatus (Shaw), Choca. Lanius punctatus Shaw, Gen. Zool., vii, pt. 2, p. 327 (Cayenne). Cariaquito, 9 cf March 13 (58,451-2). 88. Thamnophilus canadensis (Linn.). Black -crested Bush-Shrike. Lanius canadensis Linnaeus, Syst. Nat., Ed. XII, i, p. 134, 1766 ("Canada" = Cayenne). Cariaquito, cf January 25 (58,450). Settlement on Vagre River, cf January 28 (58,449). Jocopita, Manimo River, cf February 22 (58,448). 89. Microrhopias grisea intermedia (Cab.). AlUed Ant-Wren. Formicivora intermedia Cabanis, Arch. f. Naturg., 13, I, p. 225, 1847 (Car- thagena, Aragua, Venezuela). Cariaquito, 9 January 18 (58,456), cf 9 March 13 (58.453, 58,457). 90. Sclateria nsevia (Gm.). Surinam Ant-Creeper. Sitta noevia GmeUn, Syst. Nat., I, i, p. 442, 1788 (Surinam). Cano Vagre, d" 9 Januar;^ 29 (58,454-5). DENDROCOLAPTID^. 91. Acrorchilus alopecias (Pelzeln). Northern Rusty-backed Spinetail. Synallaxis alopecias Pelzeln, Sitzungsb. Ak. Wissensch. Wien, xxxiv, p. 101, 1859 (Rio Branco, Brazil). Manimo River, cf cT 9 February 9 (58,461-3). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 203 92. Synallaxis albescens albigularis Scl. Sclater's Spine-tail. Synallaxis albigularis Sclater, P. Z. S., 1858, p. 63 (Rio Napo). Jocopita, Manimo River, cf February 23 (58,465). Cano Corosal, & juv. February 27 (58,464). 93. Synallaxis oinnamomea (Gm.). Yellow-throated Spine-tail. Certhia cinnamomea Gmelin, Syst, Nat., I, i, p. 480, 1788 ("no loc. " = Guiana). Boca Uracoa, Manimo River, 9 9 February 10 (58,466-7). 94. Dendrocincla meruloides phaeochroa Berl. and Hart. Munduapo Wood-hewer. Dendrocincla phceochroa Berlepsch and Hartert, Nov. Zool., ix, p. 67,''1902 (Munduapo, Rio Orinoco). Cariaquito, 9 January 14 (58,459). 95. Dendroplex picirostris I.afr. White-throated Wood-hewer. Dendroplex picirostris Lafresnaye, Rev. Zool., 1847, p. 76 (Rio Hacha Colombia). Jocopita, Manimo River, d^ February 22 (58,460). 96. Pioolaptes albolineatUS (Lafr.). Fulvous-throated Wood-hewer. Dendroplex albolineatus Lafresnaye, Rev. Zool., 1846, p. 208 (Colombia). Cariaquito, 9 January 18 (58,458). TYRANNID-Sl. 97. FluVicola pica (Bodd.). White-shouldered Water Tyrant. Muscicapa pica Boddaert, Tabl. d. PI. Enl., p. 42, 1783 (Cayenne). Manimo River, cf d" February 9 (58,511-2). 98. Arundinicola leucocephala (Linn.). White-headed Marsh Tyrant. Pipra leucocephala Linna?us, Mus. Ad. Frid., ii, prodr., p. 33, 1764 ("no loc." = Surinam). Buelta Triste, Manimo River, cf February 20 (58,509). Boca Uracoa, Manimo River, cf February 10 (58,510). 99. Maohetornis flavigularis Todd. Yellow-throated Tyrant. Machetornis flavigidaris Todd, Ann. Carnegie Mus., viii, p. 210, 1912 (Tocuyo, Venezuela). Caiio Corosal, cf 9 cf February 25 (58,487-9). 100. Craspedoprion olivaceas guianensis (McConnell). Guiana Flat-bill. Rhynchocyclus oliiaceus guianensis McConnell, Bull. B. O. C, x.xvii, p. 106, 1911 (British Guiana). Cariaquito, cf January 21 (58,502). 101. Mionectes oleagineus pallidiventris Hellmayr. Pallid Oily Flycatcher. Mionectes oleagineus pallidiventris Hellmayr, Nov. Zool., xiii, p. 22, 1906 (Cumana). Cariaquito, 9 January 19, cf March 15 (58,468-9). 102. Elaenea Sp. ? Jocopita, Manimo River, cf February 22 (58,507). 204 PROCEEDINGS OF THE ACADEMY OF [April, 103. Elaenea flavogaster (Thunberg). Yellow-vented Crested Flycatcher. Pipra flavogaster Thunberg, Mem. Acad. St. Petersburg, viii, p. 286, 1822 ("no loc." = Brazil). . Cariaquito, d^ March 17 (58,495). Corosal, & February 27 (58,494). 104. Elaenea gaimardii (d'Orb.). Gaimard's Crested Flycatcher. Muscicapara Gaimardii d'Orbigny, Voyage (1838-47), p. 326 (Yuracares, Bolivia). Cariaquito, cf January 14 (58,503). This is probably referable to the subspecies guianensis, but I have not material to settle this point with certainty. Mr, Ridgway has established the genus Elainopsis for this species and has referred it to the Cotingidce. 105. Myiozetetes Similis COlumbianuS Cab. and Hein. Colombian Flycatcher. Myiozetetes columbianus Cabanis and Heine, Mus. Hein., ii, 1859, p. 62 (Pto. Cabello, Cartagena). Cariaquito, 9 9 9 January 13, 21, 20 (58,499-501). 106. Pitangus derbyanus rufipennis (Lafr.). Rufous-winged Flycatcher. Saurophagus rufipennis Lafresnaye, Rev. Zool., 1851, p. 471 (Colombia and Caracas). Guinipa Village, cf February 3 (58,486) and another without data, probably from the same locality. 107. Pitangus lictor (Licht.). Lichtenstein's Flycatcher. Lanius lictor Lichtenstein, Verz. Doubl., p. 49, 1823 (Para). Manimo River, 9 February 8 (58,496). Guinipa River, a" 9 January 31 (58,497-8). 108. Myiodynastes maculatus (P. L. S. Mull.). Streaked Flycatcher. Muscicapa Maculata P. L. S. Miiller, Syst. Nat., Suppl., p. 169, 1776 (Cayenne). Cariaquito, cf cf January 18 and March 10 (58,490-1). 109. Rhynchocyclus sulphurescens assimilis Pelz. Pelzeln's Flat-bill. Rhynchocyclus assimilis Pelzeln, Orn. Bras., p. 181, 1869 (Rio Negro, N. Brazil) [nomen nudum at p. 110]. Cariaquita, 9 March 15 (58,504). Jocopita, 9 February 22 (58,506). 110. Todirostrum cinereum (Linn.). Black-crowned Tody-Tyrant. Todus cinereus Linnaeus, Syst. Nat., Ed. XII, i, p. 178, 1766 (Surinam). Cariaquito, d" January 17 (58,515), cf March 15 (58,516), 9 March 14 (58,517). Pederuales, cf January 27 (58,519). Buelta Triste, Manimo River, d' 9 February 20 (58,518, 585,13). Jocopita, Manimo River, cf February 23 (58,514). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 205 111. Todirostrum maculatum (Desm.). Spotted Tody-Tyrant. Todus macidatus Desmarest, Hist. Nat. Tangaras, etc., PI. 70, 1805 (Guiana). Pedernales, cf 9 January 25 and 26 (58,521 and 58,520). 112 Colopteryx galeatus (Bodd.). Helmeted Pygmy Flycatcher. Motacilla galcata Boddaert, Tabl. PI. Enl., p. 24, 1783 (Cayenne). Jocopita, Manimo River, cf February 22 (58,522). Also a young bird in first plumage (58,523) from Cariaquito, Janu- ary 14. 113. Megarhynclius pitangua (Linn.). Pitangua Flycatcher. Lmiius Pitangua Linnaeus, Syst. Nat., Ed. XII, i, p. 136, 1766 (Brazil). Cariaquito, d^ March 17 (58,485), 9 January 20 (58,484). 114. Myiarchus ferox venezuelensis Lawr. Venezuelan Crested Flycatcher. Myiarchus venezuelensis Lawrence, Proc. Acad. Nat. Sci. Phila., 1865, p. 38 (Venezuela). Boco Uracoa, Manimo River, cf February 10 (58,479). Jocopita, Manimo River, 9 February 22 (58,480). 115. Tyrannus melancholicus satrapa (Cab. and Heine). Lesser Yellow-breasted Kingbird. Laphyctes satrapa Cabanis and Heine, Mus. Hein. ii, p. 77, 1859 (Guiana: Caracas) . Pedernales, 9 January 26 (58,481). Cariaquito, 9 9 January 21 and March 13 (58,482-3). 116. Tyrannus dominicensis (Gmel.). Gray Kingbird. Lanius dominicensis Gmelin, Syst. Nat., I, i, p. 302, 1788 (Santo Domingo). La Pedrita, Rio Uracoa, cT February 15 (58.493), 9 February 17 (58,492). 117. Muscivora tyrannus (Linn.). Fork-tailed Flycatcher. Mitscicapa tyrannus Linnaeus, Syst. Nat., Ed. XII, i, p. 325, 1766 (Cayenne). Boca Uracoa, cf 9 9 February 10 (58,476-8). La Pedrita, Rio Uracoa, cf February 11 (58,475). COTINGID^. 118. Tityra Cayana (Linn.). Cayenne Tityra, Lanius cayanus Linnaeus, Syst. Nat., Ed. XII, i, p. 137, 1766 (Cayenne). Cariaquito, cf March 16 (58,526). 119. Pachyrhamphus rufus (Bodd.). Cinereous Thick-bill. Muscicapa ruja Boddaert, Tabl. PI. Enl., p. 27, 1783 (Cayenne). Manimo River, cf February 20 (58,527). 120. Pachyrhamplius cinereiventris Scl. Gray-belUed Thick-bill. Pachyrhamphus cinereiventris Sclater, Cat. Amer. Birds, p. 242, 1862 (Santa Martha). Guinipa Village, cf February 3 (58,505). 206 PROCEEDINGS OF THE ACADEMY OF [April, PIPRIDJB. 121. Chiroxiphia lanceolata (Wagler). Lance-tailed Manakin. Pi-pra lanceolata Wagler, Isis, 1830, p. 931 ("Guiana" = Colombia), Cariaquito, 9 January 18 (58,524), cr' juv. March 13 (58,525) and an adult male without data. HIRUNDINID^. 122. Progne chalybea (Gmel.)- Gray-breasted Martin. Hirundo chalybea Gmelin, Syst. Nat., I, ii, p. 1026, 1789 (Cayenne). Cano Corosal, 9 February 26 (58,530). 123. Iridoprocne albiventer (Bodd.). White-bellied Tree Swallow. Hirundo albiventer Boddaert, Tabl. PI. Enl., p. 32, 1783 (Cayenne). Guinipa River, cf February 5 (58,532). Pedernales, 9 January 26 (58,531). 124. Stelgidopteryx ruflcoUis aequalis Bangs. Bangs' Rough-winged Swallow. Stelgidopteryx ruficollis oequalis Bangs, Proc. N. E. Zool. Club, ii, p. 58, 1901 (Santa Marta). Manimo River, 9 d" February 9 (58,528-9). TROGLODYTID^. 125. Heleodytes nuchalis (Cab.). Fulvous-naped Cactus-Wren. Campylorhynchus nuchalis Cabanis, Arch, fiir Naturg. i, p. 206, 1847 (Venezuela) . Buelta Triste, Manimo River, cf cf February 20 (58,438-9). Boca Uracoa, Manimo River, cf February 18 (58,440). Manimo River, 9 February 9 (58,441). "Iris white, legs and upper mandible blue, lower white." 126. Heleodytes minor Cab. Lesser Cactus Wren. Heleodytes minor Cabanis, Mus. Hein., i, p. 80, 1850 (Venezuela). Guinipa Village, 9 February 3 (58,533). 127. ThryopMlus rufalbus castanonotus Ridgw. Chestnut-backed Wren. Thryophilus rufalbus castanonotus Ridgway, Proc. Best. Soc. X. H., xxiii, March, p. 386, 1888 (Angostura, Costa Rica). Cariaquito, January 17 (58,537), d" January 20 (58,538), d March 15 (58,534). "Feet light lead color, lower mandible bluish-white." 128. Thryothorus rutilus Vieill. Bar-throated Wren. Thryothorus rutilus Vieillot, N. Diet. d'Hist. Nat., xxxiv, p. 55, 1819 (Trinidad). Cariaquito, d January 17 (58,768). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 207 129. Troglodytes musculus Clarus Berlepsch and Hartert. Venezuelan House-Wren. Troglodytes musculus- clarus Berlepsch and Hartert, Nov. Zool., ix, p. 8, 1902 (Bartica Grove, British Guiana). Cariaquito, d" January 19 (58,536), d" March 17 (58,535). MIMID^. 130. MimuS gilvus melanopterus Lawr. Black-winged Mockingbird. Mimus melanopterus Lawrence, Ann. Lye. N. Y., v, p. 35, 1849 (Venezuela). La Pedrita, Rio de Uracoa, February 17 (58,539). Cano Coro.sal, cT cf 9 February 28 (58,540-2). 131. Donacobius atricapillus fLinn.). Black-capped Mocking Thrush. T Urdus atricapilla Linnajus, Syst. Nat., Ed. XII, i, p. 295, 1766 ("Cape of Good Hope " = Brazil). Manimo River, d" cf 9 February 9 (58,442-4). La Pedrita, Rio Uracoa, 9 February 14 (58,445). Guinipa Village, 9 9 February 3 (58,446-7). "Iris and skin on sides of neck yellow, bill and inside of mouth black, legs grayish horn color." TURDID^. 132. Planesticus phaeopygUS phaeopygoides (Seebohm). Tobago White-throated Thrush. Turdus phceopygoides Seebohm, Cat Birds, Brit. AIus., v, p. 404, 1881 (Tobago). Cariaquito, d cf March 10 and January 21 (58,543-4). VIREONID^. 133. Vireo chivi (Vieill.). Chivi Vireo. Sylvia chivi Vieillot, N. Diet. d'Hist. Nat., xi, p. 174, 1817 (Paraguay). Cariaquito, cf cf March 15 and 12 (58,545-6). 134. Pachysylvia aurantiifrons saturata Hellmayr. Venezuelan Golden-fronted Warbler. Pachysylvia aurantiifrons saturata Hellmayr, Nov. Zool., xiii, p. 322 (Rio Vaupe). Cariaquito, 9 January 14 (58,472), d d 9 January 20 (58,471, 3 and 4), d March 16 (58,470). 135. Cyclorhis gujanensis flavipectUS Sclater. Guiana Greenlet Shrike. Cyclorhis flavi pectus Sclater, P. Z. S., 1858, p. 448 (Trinidad). Cariaquito, d March 17 (58,547). Pedernales, 9 January 25 (58,549). Jocopita, Manimo River, 9 February 23 (58,550). Boco Uracoa, Manimo River, cf February 10 (58,548). "Iris yellow, feet light bluish." 208 PROCEEDINGS OF THE ACADEMY OF [April, MNIOTILTID^. 136. Compsothlypis pitiayumi elegans Todd. Elegant Warbler. Compsothlypis pitiayumi elegans Todd, Ann. Carnegie Mus., viii, No. 2, p. 204, 1912 (Lara, N. W. Venezeula). Cariaquito, d' March 10 (58,553), 9 January 21 (58,554). 137. Dendroica sestiva (Gmel.). Yellow Warble:. Motacilla cestiua Gmelin, Syst. Nat., I, ii, p. 996, 1789 (Canada). Cauo Corosal, d" d" February 25 and 27 (58,551-2). 138. Seiurus noveboracensis (Gmel.). Small-billed Water-Thrush. Motacilla noveboracensis Gmelin, Syst. Nat., I, ii, p. 958, 1789 (Louisiana and New York). Cariaquito, 9 9 January 20 and 18 (58,555-6). 139. GeotMypis aequinoctialis (Gmel.). Equinoctial Warbler. Motacilla aquinoctialis Gmelin, Syst. Nat., I, ii, p. 972, 1789 (Cayenne). Manimo River, cf February 20 (58,558). 140. Basileuterus auricapillus olivascens Chapm. Chapman'-s Warbler. Basileuteriis vermioorus olivascens Chapman, Auk., 1893, p. 313 (Princestown, Trinidad). Cariaquito, cf March 13 (58,557). MOTAOILLID^. 141. Anthus lutescens Pucher. Rufous Pipit. Anthus lutescens Pucheran, Archiv. du. Mus., vii, p. 343, 1855 (Brazil). La Pedrita Uracoa, o^ 9 February 17 (58,560-1). While known from Guiana, I do not find this species previously recorded from Venezuela. FRINGILIilD^. 142. Sporophila americana (Gmel.). GmeUn's Seed-eater. Loxia americana Gmelin, Syst. Nat., I, ii, p. 863, 1789 ("America " = Cayenne) . Pedernales, cf January 25 (58,572). Cano Corosal, 9 February 28 (58,574). This is another species apparently not recorded from Venezuela. 143. Sporophila grisea (Gmel.). Gray Seed-eater. Loxia grisea Gmelin, Syst. Nat., I, ii, p. 857, 1789 (" Virginia " = Guiana). Cano Corosal, cf February 25 (58,573). 144. Sporophila minuta (Linn.) Pygmy Seed-eater.. Loxia minuta Linnseus, Syst. Nat., Ed. X, i, p. 176, 1758 (Surinam). Pedernales, d" d" d" January 26 and 27 (58,569-71). 145. Volatinia jacarini splendens (Vieill.). Jacarini Grassquit. Fringilla splendens Vieillot, N. Diet. d'Hist. Nat., xii, p. 173, 1817 (Cayenne) . Cariaquito, d" 9 January 21 and 19 (58,568 and 58,565). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 209 146. Saltator olivascens Cab. Gray-breasted Saltator. Saltator oUvascens Cabanis, in Schomb. Reis. Guian., iii, p. 676, 1848 (Guiana). Guinipa Village, cT 9 February 2 (58,625-6). La Pedrita, Rio Uracoa, cf d" February 13 (58,627 and 58,635). 147. Sicalis colombiana Cab. Venezuelan Yellow-finch. Sycalis columbiana Cabanis, Mus. Hein., i, p. 147, 1851 (Porto Cabello). La Pedrita, Rio Uracoa, d" 9 February 13 (58,578 and 58,564). Caiio Corosal, cf February 28 (58,576). 148. Serinopsis arvensis minor (Cab.). Little Yellow Finch. Sycalis minor Cabanis, in Schomb. Reis. Guian., iii, p. 679, 1848 (British Guiana) . Cano Corosal, d" 9 February 27 (58,575 and 58,577). 149. Myospiza manimbe (Licht.). South American Grasshopper Sparrow. Fringilla Manimbe Lichtenstein, Verz. Doubl., p. 25, 1823 (Bahia). La Pedrita, Rio Uracoa, 9 & February 17 (58,562-3). 150. Paroaria nigrogenis (Lafr.). Black-faced Cardinal. Nemosia nigrogenis Lafresnaye, Rev. Zool., 1846, p. 273 (Orinoco region). La Pedrita, Rio Uracoa, d February 13 (58,579). Manimo River, cT February 10 (58,580). Jocopita, Manimo River, 9 February 23 (58,581). Cano Corosal, d juv. February 28 (58,.582), CCEREBID^. 151. Coereba luteola fCab.). Venezuela Flower-pecker. Certhioln luteola Cabanis, Mus. Hein., i, p. 96, 1851 (Puerto Cabello). Cariaquito, 9 January 21, cf January 18, cf January 14 (58,603-5). Isla de Morocotico, Manimo River, 9 March 3 (58,601). Jocopita, Manimo River, cf February 23 (58,602). 152. Dacnis cayana (Linn.). Turquois Honey-creeper. MotaciUa cayana Linnaeus, Syst. Nat., Ed. XII, i, p. 336, 1766 (Cayenne). Cariaquito, c^ 9 9 January 14 (58,607, 58,598-9), & January 20 (58,608), & March 17 (58,606) also a male without data. "Iris hazel, feet flesh color." 153. Cyanerpes cyaneus (Linn.). Blue Honey-creeper. MotaciUa cyanea Linnseus, Syst. Nat., Ed. XII, i, p. 188, 1766 (Brazil and Cayenne) . Cariaquito, 7 d March 10 (58,583-9). Pedernales, d 9 March 6 (58,590). ^'Legs carmine, bill black." 210 PROCEEDINGS OF THE ACADEMY OF [April,. 154. Cyanerpes oaeruleus (Linn.). Purple Honey-creeper. Certhia cceruleus Linnaeus, Syst. Nat., Ed. X, i, p. 118, 1758 (Surinam). Cariaquito, cf January 13 (58,591), 9 January 14 (58,594) 9 March 10 (58,592), also three without data. "Feet clear lemon-yellow." 165. Chlorophanes spiza (Linn.) Green Honey-creeper. Motacilla Spiza Linnaeus, Syst. Nat., Ed. X, i, p. 188, 1758 (Surinam). Cariaquito, d' & & 9 January 13 (58,597, 58,610-12), 9 d' cf January 14 (58,595, 58,613-14), juv. cf January 16 (58,593), cf' January 18 (58,596), 9 January 21 (58,609). TANGARID^. 156. Tanagra trinitatis (Strickl.). Yellow-capped Euphonia. Euphonia trinitatis Strickland, Contr. Orn., 1851, p. 72 (Trinidad). Cariaquito, 9 January 18, 9 January 14, cf January 16, cf' January 13 (58,566-7, 58,649-50), and two without data. ' 157. Tangara desmarestii (Gray). Red-headed Calliste. Calliste Desmarestii Gray, Gen. Bds., ii, p. 366, 1844 (Trinidad). Cariaquito, c^ 9 March 10 and 12 (58,648, 58,647). 158. Thraupis episcopus SClateri (Berlepsch). Trinidad Blue-gray Tanager. Tanagra sclateri Berlepsch, Il?is., 1880, p. 112 (Orinoco Dist. or Trinidad). Cariaquito, cf cf January 16, c/" January 19 (58,620-2). Guinipa Village, cf 9 February 3 (58,623-4). 159. Thraupis palmarum melanoptera (Scl.;. Western Palm Tanager. Tanagra melanoptera Sclater, P. Z. S., 1856, p. 235 (E. Peru). Cariaquito, cf 9 9 9 January 14 (58,615-8), cf January 1(> (58,619). 160. Eamphocelus carbo (Pall.). Silver-beaked Tanager. Lanius Carbo Pallas, Vroeg's Catal. Rais. Adumbrat., p. 2, 1764 (Surinam). Cariaquito, 9 January 16, 9 January 14 (58,645-6). Peclernales, d^ 9 January 26 (58,636, 58,644). Buelte Trlste, Manimo River, d' cT 9 February 20 (58,639-41). Guinipa Village, cT c^ February 2 (58,637-8), 9 9 February 2 and 3 (58,642-3). " Lower mandible pearly-white, black at tip." 161. Tachyphonus rufus (Bodd.). Greater White-shouldered Tanager. Tanagra rufa Boddaert, Tabl. PI. Enl., p. 44, 1783 (Cayenne). Cariaquito, d^ January 20, cf January 14, cf 9 January 19 (58,629-31,58,634). Jocopita, Manimo River, d February 22 (58,632), Guinipa Village, d February 3 (58,628). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 211 .162. Tachyphonus surinamus (Linn.). Fulvous-crested Tanager. Turdiis surinamus Linnaeus, Syst. Nat., Ed. XII, i, p. 297, 1766 (Surinam). Vagre River, cf January 29 (58,633). lOTERID^. 163. Ostinops decumanus (Pall.). Great Crested Cacique. Xanthornus decumanus Pallas, Spic. Zool., fasc. vi, p. 1, 1769 (Surinam). Cariaquito, 9 cf January 14, cf cf 9 January 16 (58,682-4, 58,798-9). ''Iris blue, legs black, bill greenish-yellow." 164. Ostinops viridis (P. L. S. Mull). Great Green Cacique. Oriolus Viridis P. L. S. Muller, Syst. Nat. Suppl., p. 87, 1776 (Cayenne). Settlement on Vagre River, 9 January 28, 9 9 February 7 <58,678-80). Isla Morocotico, Manimo River, 9 March 3 (58,681). Found nesting only on the Vagre (S. B.). "Iris blue, skin around eye and base of beak yellow, terminal part of beak deep orange." 165. Cacicus Cela (Linn.). Yellow-backed Cacique. Parus Cela Linnaeus, Syst. Nat., Ed. X, i, p. 191, 1758 (" India" = Guiana). Cariaquito, cf cf cf d^ 9 January 14, cf January 18 (58,686-9, 58,796-7), and one without data. "Bill greenish-horn color, legs black, iris pale bluish-white." 166. Agelaius icterocephalus (Linn.). Yellow-headed Marsh-bird. Oriolus icterocephalus Linnaeus, Syst. Nat., Ed. XII, i, p. 163, 1766 (Cayenne). La Pedrita de Uracoa, cf cf 9 February 13 (58,664-6). Found only on the savannas at La Pedrita (S. B.). 167. Leistes militaris (Linn.). Red-breasted Marsh-bird. Embcriza militaris Linnaeus, Syst. Nat., Ed. X, i, p. 178, 1758 (Guiana). La Pedrita, Rio de Uracoa, cf cf 9 February 11 (58,667-8, 58,671), d^ 9 February 17 (58,669-70). Cano de Corosal, cf juv. February 28 (58,672). Found only in the savannas (S. B.). 168. Gymnomystax mexioanus (Linn.). Black-and-yellow Oriole. Oriolus mexicanus Linnaeus, Syst. Nat., Ed. XII, i, p. 162, 1766 ("Mexico" = Cayenne). Corosal, cf cf February 27 (58,651-2). "Feet, bill and skin round the eye black." 169. Icterus auricapillus Cassin. Golden-crowned Oriole. Icterus auricapillus Cassin, Proc. Acad. Nat. Sci. Phila., 1847, p. 332 ("South America " = Colombia) . Cariaquito, 9 9 January 14 and 9 January 21 (58,659-61). 212 PROCEEDINGS OF THE ACADEMY OF [April, 170. Icterus chrysocephalus (Linn.). Moriche Oriole. Oriolus chrysocephalus Linnaeus, Syst. Nat., Ed. XII, i, p. 164, 1766 (America) - Guinipa River, 9 9 January 31 and February 2 (58,662-3). 171. Icterus xanthornus (Gmel.). Yellow Oriole. Oriolus Xanthornus Gmelin, Syst. Nat., I, i, p. 391, 1788 ("Jamaica and Nov. Hisp . " = Venezuela) . Cariaquito, cf January 16 (58,658), 9 March 12 (58,657). Buelta Triste, c^ February 20 (58,655). Cano de Corosal, 9 cf cT' February 25 (58,653-4, 58,656). 172. Lampropsar tanagrinus guianensis Cab. Guiana Grackle. Lampropsar guianensis Cabanis, in Schomb. Reis. Guiana, iii, p. 682, 1848 (Guiana). Cano de Vagre, d' January 29 (58,673). Guinipa River, 9 9 February (58,674-5). 173. Holoquiscalus lugubris (Sw.). Swainson's Grackle. QuiscnlK.s Iiiguhris Swainson, Anim. in Menag., p. 299, 1838 ("Brazil"' = British Guiana). Boca Uracoa, Manimo River, cf February 18 (58,677). 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 213 NOTES ON SERPENTS IN THE FAMILY COLUBRID^. BY JOSEPH C. THOMPSON, SURGEON, U. S. N. It is a curious fact that during the last two decades one of the rarest things in the literature dealing with serpents is a detailed account of an individual specimen. Reference is not made to original descriptions of a type, as the majority of these are full and satisfactory, but anything like the records left by Dumeril and Bibron or by Cope of a particular specimen are now made by few authors. The need for them is a very real one, both to students of zoogeography in their efforts to outline the distribution of allied forms, and to those engaged in the gathering of data relating to the range of variation exhibited by a given species. Trirhinopholis styani Boulenger. No. 26,786 Cal. Ac. Sci. Coll. Rev. C. Barlow. Waung Wan Shan, Chekiang Province, China. Male; total length 205, tail 29 mm. Squamation. — Scales in 15 rows, continuous throughout the body, smooth, without pits, those in the outer series rounded behind and twice as wide as those in the dorsal series, Gastrosteges 118, ' abnormally broad. Anal entire. Urosteges 27 pairs. Nasal divided, entirely surrounding the nostril. Loreal absent. Pre- ocular 1. Postoculars 2. Anterior temporals 2, the lower not in contact with the postoculars; posterior 2. Supralabials 6, the third and fourth entering the eye. Infralabials on the right side 5, the normal fourth and fifth fused and with an incisure from the upper border; on the left side 6, the first pair widely separated bj' the mental which is in contact with the chin-shields. Geneials in two pairs, anterior the larger and touching three labials, the posterior touch the third and fourth. Anatomy. — Maxillary with 20 small, equal teeth. Palatine with 10 teeth. Pterygoid with 22 teeth, only a trifle smaller than those on the maxillary. Dentary with 20 equal teeth, the posterior third of the bone is free, as in Polyodontophis. Hypophyses present throughout the vertebral column. Eye 2 mm. in diameter and 1 mm. distant from the mouth. Rudimentary lung present. Apex of the heart at the 23d gastrostege, in terms of body vertebrae this is 19.5% 214 PROCEEDINGS OF THE ACADEMY OF [April, down the column. Liver extending from the 31st to the 65th gas- trostege. Head flat and pointed. Body vertically compressed throughout; just behind the heart it is 5.5 mm. deep and 8 mm. broad. Tail short, flat, and pointed. Habitat. — Heretofore known only by the two type specimens which were captured in Fokien Province, China. Oxyrhabdium modestum (Dumeril and Bibron). No. 15,235 Cal. Ac. Sci. Philippine Islands. Female; total length 216, tail 42 mm. Squamation. — Scales in 15 continuous rows, smooth, without apical pits, broader than long; outer row slightly enlarged and rounded behind. Gastrosteges 163. Anal entire. Urosteges 62 pairs. Rostral 1.1 mm. deep, 1 mm. wide; portion visible from above strongly concave and with the borders raised well above the level of the surrounding shields; below it is deeply incised. Nasals divided, the posterior the larger and with raised edges. Internasals .8 mm. long and .6 mm. broad, mutual suture one-third the length of that between the prefrontals. Frontal 3.3 mm. long, 2.5 mm. wide, 2.8 mm. distant from the rostral; facet for supraocular concave. Parietals 3.3 mm. long, 2.5 broad; narrowed behind. Loreal 2.2 mm. long, .8 mm. broad, anterior border in line with the suture between the second and third labial; behind an acute angle between the preocular and the fifth labial. Preocular 1, on each side, .8 mm. long, 1.1 deep. Postoculars 2; superior the wider; inferior narrow and excluding the seventh labial from entering the eye. Temporals anterior 1, twice as wide as broad, inclined downward and forward; posterior 2. Supralabials 8, the fifth and sixth entering the eye; the anterior four are very small, the first one-half the size of the second, the second, third and fourth equal, the eighth the largest being 2.7 mm. long. Mental ver}^ short, rounded behind. Infra- labials right 8, left 9, the additional shield due to the division of the sixth, the fifth the largest. Geneials a single pair, 2.6 mm. long, in contact with five labials. Gular shields in two pairs, shorter than wide; these followed by the first gastrostege, the anterior border of which is below the posterior border of the eye. Coloration. — Above uniform iridescent light brown, head a trifle darker, the trace of a nuchal band. Below yellow, line of demarca- tion sharp, on the body along the lower border of the first scale row, on the head along the supralabials. Anatomy. — Body laterally compressed, at the middle being 7.8 mm. deep, and 6.5 mm. wide. Head slightly distinct from neck, width 1913.] NATURAL SCIENCES OF PHILADELPHIA. 215 6.3 mm. interorbital region 3.7 mm., interval between nostrils 1.1 mm. Eye with vertically subelliptic pupil, diameter 1.7 mm., its distance from the mouth .8 mm. Maxillary bone with 33 teeth; reaching beyond the palatine. Ectopterj'goid bone short, ectopterygo- maxillary joint at the level of the second, and ectopterygo-pterj-goid joint at the level of the seventh tooth on the pterygoid bone. Pala- tine bone Avith 20 teeth; no vomerine process; maxillary process a broad elongate shelf extending back to the level of the 13th tooth, at the articulation with the maxillary bone its external edge is incisetl, before and behind the joint an externally directed process; on the under surface of this shelf at the base of each process is a foramen, these are the entrance and the exit to a canal which perforates the bone and gives passage to a branch of the palatine artery; palato- pterygoid joint oblique from within out, the posterior tip of the palatine bone reaching to the level of the last tooth on the maxilla. Pterygoid bone with 30 teeth which extend to within 1.1 mm. of the posterior tip of the bone. Apex of the heart at the level of the 37th gastrostege, eciuivalent to 22.7% down the spinal column. No rudimentary right lung or extension of the pulmonary tissue along the trachea. Liver extends from the 45th to the 88th gastrostege. Habits. — The stomach contained an earthworm belonging to the family Perichaiidoe. Habitat. — Recorded from Luzon, Samar, Leyte, Calamianes, Dinagat, and Mindanao. Lystrophis semicinctus (Dumeril and Bibron). No. 14,571 Cal. Ac. Sci. (Purchased.) Tucuman, Argentine. Male; total length 455, tail 63 mm. Squamation. — Scales in 21 rows anteriorly, reduced to 19 and 17 posteriorly ; the sequence of suppression is the V row followed by the IV row; the gastrostege level at which the rows terminate is nearly the same on each side: Rows. 21 19 Suppressed Row. V IV Right. 97 112 Left. 99 114 17 continued. each scale is smooth, and with a single apical pit; the lateral and dorsal scales are elongate, and in very oblique transverse series, the tip of each is well anterior to the middle of the scale below and behind it ; the scales in the first to the fifth rows are broad, not in markedly oblique series, the tip of each scale is anterior to the centre of the 15 216 PROCEEDINGS OF THE ACADEMY OF [April, scale that is below and behind it. Gastrosteges 156. Anal divided. Urosteges 34 pairs, the second to the seventh and the ninth entire. Rostral reaching to the azygos prefrontal, separating the internasals and lateral prefrontals, above with a sharp median keel, anterior inferior surface flat, inclined upward at an angle of 45°, and bordered by a sharp edge. Frontal with a small incisure from the middle of the anterior border. Preoculars 2, postoculars 2. Anterior tem- porals 2, posterior 2. Supralabials 8, the fourth and fifth entering the eye. Infralabials 11, the first pair broadly in contact. Anterior geneials three times the size of the posterior; touching five labials. Anatomy. — Posterior vertebrae with a low rounded keel. Maxillary with 5 small teeth gradually increasing in size posteriorly; these followed by a space that would support two more ; behind 2 enlarged teeth situated below the posterior rim of the pupil, a trifle longer than the space, curved, and with a sharp cutting edge behind. Palatine with 5 teeth ; tip of bone reaching to the interval between the second and the third maxillary tooth. Pterygoid with 12 teeth; pterygo- palatine joint at the interval between the enlarged maxillary teeth. Dentary with 14 equal teeth. Heart far forward, apex opposite the 26th gastrostege, in terms of body vertebrae this is 16.7% do^\Ti the column. Left lung begins abruptly at the base of the ventricle, without free apex or extension of the pulmonary tissue along the trachea. Liver extending from the 36th to the 64th gastrostege. Hemipenis 20 mm. long, divided, sulcus furcate, spinous, and with an apical disk. Compared with the figure of the organ in L. dorhigny (Dumeril and Bibron)^ this form is less deeply divided, the divisions reaching to one-third, instead of one-half the distance from the tip of the organ to the bifurcation of the sulcus, the apical disk is larger and with a wider free border. Eye 2.5 mm. in diameter, its distance from the mouth 3.3 mm. Oligodon vertebralis Giinther. No. 15,808 Cal. Ac. Sci. Coll. A. Seale, Esq. Puerto Princesa, Palawan, P. I. Female; total length 159, tail 24 mm. Squamation. — Scales in 15 rows, finely striate, without keels or pits. Gastrosteges 139. Anal divided. Urosteges 36 pairs. Ros- tral one and one-half times broader than long, portion seen from above two-thirds its distance from the frontal. Suture between the inter- nasals twice as long as that between the prefrontals. Frontal one- 1 1900: Cope, Croc, Liz., Sn. No. Am., Repl. U. S. Nat. Mm., 1898, PI. XXIV, fig. 6. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 217 third longer than broad, distance from the rostral less than one-half its width, a trifle shorter than the parietals. Nasal divided into two equal portions. Loreal nearly square, not quite as deep as the diameter of the pupil. Preocular 1, postoculars 2. Temporals anterior 1, posterior 1. Supralabials 7, the third and fourth entering the eye, the sixth the deepest, and touching the posterior temporal. Infralabials 8, the first pair in contact behind the mental. Anterior geneials nearly twice as large as the posterior, in contact with four labials. Coloration. — Body above brown, with a vertebral series of ten round or oblong, yellow, black-edged spots; tail with two; numerous yellow dots having a tendency to be arranged in two to three trans- verse rows between each dorsal spot; the anterior chevron mark interrupted over the frontal; on the parietals behind the posterior chevron a small dot. Under surface of head white, throat with a break in the posterior chevron; body beneath yellow. Anatomy. — Pupil round. Heart apex at the level of the 34th gastrostege, in terms of body vertebrae this is 24% down the spinal column. Anterior tip of the liver at the 43d gastrostege. Museo de Santa Toma, Manila. Palawan, Philippine Islands. Male; total length 308, tail 54 mm. Squamation. — Scales in 15 continuous rows. Gastrosteges 136. Anal divided. Urosteges 37 pairs and the terminal pointed scale. Internasal suture as long as the prefrontal suture. Frontal as long as the parietals. Preocular 1, postoculars 2. Temporals anterior 1, posterior 2. Supralabials 7 on the left side and 6 on the right, the fifth and sixth fused, the third and fourth entering the eye. Coloration. — Body with ten, tail with two, yellow black-edged dorsal spots. Museo de Santa Toma, Manila. Palawan, Philippine Islands. Male; total length 340, tail 64 mm. Squamation. — Scales in 15 continuous rows. Gastrosteges 143. Anal divided. Urosteges 41 pairs, and the terminal pointed scale. Preocular 1, postoculars 2. Temporals anterior 1, posterior 2. Coloration. — Body with ten, tail with three, yellow black-edged vertebral spots. Habitat. — Heretofore known only by the type which came from Banjermasin in the extreme south of Borneo. Oligodon schadenbergi Boettger. No. 15,281 Cal. Ac. Sci. Mindanao, Philippine Islands. Female; total length 226, tail 39 mm. 218 PROCEEDINGS OF THE ACADEMY OF [April, Squamation. — Scales in 15 rows, continuous throughout, finely striate, without keels or pits. Gastrosteges 137. Anal divided. Urosteges 42 pairs. Rostral one and one-half times broader than long. Suture between the internasals .6 mm., two-thirds of that' between the prefrontals. Frontal 3.9 mm. long, 3 mm. broad, its distance from the rostral 1.5 mm. Parietal 4.2 mm. long. Preocular 1, postoculars 2. Temporals anterior 1, posterior 2. Supralabials 7, third and fourth entering the eye; the sixth the highest. Infra- labials 8, the first pair in contact behind the mental. Anterior geneials touching four labials, one and one-half times as large as the posterior. Coloration.— Eody dark brown above, with a vertebral series of twelve very small yellow, black-edged spots, tail with two ; between each pair of spots are three transverse rows of minute yellow dots. Under surface orange. Head with two chevron-shaped bands, the posterior twice the broader; beneath with black V-shaped mark on the anterior geneials, a short longitudinal line on the throat, posterior chevron broadly interrupted. Anatomy. — Heart apex at the level of the 28th gastrostege, in terms of body vertebrae this is 20.4% down the column. Anterior tip of the liver at the 39th gastrostege. Habitat. — Previously known from three specimens secured on Busuanga Island, Calamianes Group, Philippine Islands. This species as at present defined cannot be separated from 0. vertebralis by any single isolated character. The few specimens recorded show that the one to which Boettger's description applies may be distinguished from a tj'pical 0. vertebralis in the following details : internasal suture shorter than the prefrontal ; lateral borders of the frontal converge posteriorly, instead of being parallel; loreal broader than deep; two posterior temporals, sixth supralabial lower and not reaching to the superior-posterior temporal; the vertebral series of spots are much smaller and the transverse rows of minute dots are more distinct. These differences are each well within the range of individual variation. The most pronounced character is the absence of the large spots on the back of the adult 0. schadenbergi, but it does not hold for the young. The distribution of the two broadly overlap in the Southern Philippines. As more specimens are secured there will probably be found examples that will form a complete intermediate series. U. S. F. S. Albatross, March 17, 1913. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 219 May 6. Mr. Charles Morris in the Chair. Thirty-nine persons present. The reception of papers under the following titles was reported by the Publication Committee : "The antenodal reticulation of the wings of Agrionine Dragon- flies," by Herbert Campion (April 18). "The fossil Odonate Phenacolestes, with a discussion of the venation of the Legion Podagrion Selys," by Philip P. Calvert (April 18). ■ "A contribution to a knowledge of the Orthoptera of Argentina," by James A. G. Rehn (April 19). The issue of the Index to the Publications of the Academy from 1817 to 1910, inclusive, was reported. Miss H. New^ell Wardle made an illustrated communication on the miniature temples and temple pyramids of the ancient Mexi- cans. (No abstract.) May 20. Mr. Charles Morris in the Chair. Three hundred persons present. The death of the Rev. Leander T. Chamberlain, a member, INIay 16, 1913, was announced. The Publication Committee reported the reception of a paper entitled "The Helicidae of Lower California," by Henry A. Pilsbry (May 22). Dr. William E. Hughes made a finely illustrated communication on a winter exploration of Bolivia and Peru, with special regard to the Inca ruins. (No abstract.) The following were ordered to be printed : 220 PROCEEDINGS OF THE ACADEMY OF [May, THE ANTENODAL RETICULATION OF THE WINGS OF AGKIONINE DR&GONFLIES. BY HERBERT CAMPION. When describing the remarkable fossil dragonfly Phenacolestes inirandus, from Florissant, Prof. T. D. A. Cockerell laid stress upon its possession of five antenodal nervures, and, upon the strength of that character alone, proposed to erect Phenacolestes — together with Dysagrion, also from the North American Tertiaries — into a new subfamily of Agrionidae, the Dysagrioninse.^ "Dysagrion Scudder, the type of the subfamily," he wrote, ''has not been supposed to possess an unusual number of antenodals, but it is evidently allied to Phenacolestes, which has five; and Scudder's figure of Dysagrion fredericii shows two antenodals beyond the arculus, and as the first two of all Agrionids must certainly have been present, there were at least four." In the description of Phenacolestes mirandus it is stated: "Antenodal sectors five, of which only the first two continue to the radius, these being the two present in Agrioninse. The second, however, does not meet, or nearly meet, the arculus, but ends on the radius 204/^ beyond it (a character also of Melanagrion)." On the same occasion Prof. Cockerell described the apical half of a wing, also from the Tertiary of Florissant, as Phenacolestes parellelus, but expressed a doubt as to the true generic position of the fossil. Sub- sequently, he recorded the base of a wing having six antenodal cross-nervures, which he referred provisionally to the same species.^ In the typical Agrionine wing we find two antenodals only, which cross transversely both the costal and subcostal spaces; one of them is placed before and the other at the level of the arculus. In fact, so general is this 'number of antenodals in the Agrioninse, that for many years it was one of the chief characters used in separating that subfamily from the Calopteryginse, in which the antenodals are more numerous. In a few recent Agrionines, however, three, or even five, antenodals occur with more or less constancy, and we are therefore no longer able to regard antenodal reticulation as a character of '■Bull. Amer. Mus. Nat. Hist., XXIV, p. 60 (1908). ^Amer. Journ. Sci., XXVI, p. 75 (1908). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 221 primary importance in the classification of the Zygoptera. Super- numerary antenodals are often weaker than the normal ones, and are frequently incomplete; that is to say, they may appear as short nervures crossing the costal space alone or the subcostal space alone. As already remarked, the second antenodal coincides with the arculus in the typical Agrioninse, but in such genera as Agriocnemis, Argiocnemis, Ceratura, and Hemiphlebia, it comes before the level of the arculus, while it lies beyond it in the fossil genera Melanagrion and Phenacolestes. In Neurolestes trinervis De Selys, from Kamerun, we get three complete antenodals constantly present, and, according to its de- scriber, the supernumerarj^ nervure is placed between the usual two. Neuragrion mysticum Karsch was described from a single 9 from Ecuador, and here again there is an additional nervure lying between the ordinary ones. But in this case the nervure is confined to the hind-wings and to the subcostal space only. Of Thaumatoneura, from Central America, two species are known, namely, T. inopinata McLach. and T. pellucida Calv. In this genus a fourth, or even a fifth, antejiodal is occasionally added to the more usual number of three, and in some instances the number is reduced to two. The third, fourth, and fifth antenodals, when present, are placed beyond the level of the arculus and are confined to the costal space. Podop- teryx roseonotata De Selys is represented in the British Museum Collection by three specimens, namely, the type cf , obtained in Aru by A. R. Wallace, and a fine pair (cf & 9 ) from Queensland (F. P. Dodd). The Australian examples do not possess more than two antenodals in any of their wings, but the type specimen has a third antenodal in each wing, beyond the level of the arculus, and crossing the costal space only in three wings, and both the costal and subcostal spaces in the remaining wing. Furthermore, in three wings there is a transverse nervure traversing the subcostal space alone before the first regular antenodal. Although the South African genus Chlorolestes does not normally possess more than two cross-veins before the nodus, there are two specimens in the British Museum Collection which exhibit a third cross-vein. One of these insects is a cf of C. longicauda Burm., in the right hind-wing of which the additional nervure is placed between the usual two and ceases at the subcosta. The other is a cf of C. fasciata De Selys, and in this case the added nervure, which ceases at the subcosta, lies before the first normal antenodal in the right hind-wing. 222 PROCEEDINGS OF THE ACADEMY OF [May, Two Neotropical genera occasionally present similar features to those observed in Chlorolestes. The Godman-Salvin Collection of Central American Odonata, now in the British Museum, includes the type and three other specimens of Paraphlebia quinta Calv., all from Guatemala. Two of these have an additional antenodal in as many as five out of their eight wings, and in each instance it is proximal to the first regular antenodal and is restricted to the sub- costal space. A 9 of Heteragrion chrysops Hag., from Vera Cruz, also in the Godman-Salvin Collection, has, in three of its wings, a supernumerary antenodal between the usual ones and limited to the costal space. All the recent species which have been considered so far belong to De Selys' Legion Podagrion, a group which has been declared to be "heterogeneous and untenable," but which includes the most archaic genera of Agrioninae that have yet been made known. However, at least two species belonging to the more highly specialized genera may be cited as affording other instances of the accidental reappear- ances of the kind under review. One of these is the type 9 of Ischnura granti McLach., from Sokotra, preserved in the British Museum, in which a third antenodal is present in all the wings, except the right fore- wing. In each case it is placed beyond the level of the arculus and ends on the subcosta. The other species referred to is Pyrrhosoma nijmphula Sulz., concerning which Prof. Philip P. Calvert is kind enough to inform me that he possesses a 9 from Birmingham, Warwickshire, taken by Mr. W. H. Bath, whose left fore-wing has three antenodals, the third lying beyond the usual two and crossing the costal space only. It is not improbable that the supernumerary antenodals which we have found to occur sporadically, as an individual peculiarity, repre- sent nervures which were present normally in the wings of some ancestral form, but which have been lost in the majority of living Agrioninae. The main tendency of Agrionine development has been in the direction of simplified wing-venation, and in the more highly specialized genera the costal and subcostal spaces have shared in the general elimination of superfluous cross-veins. As soon as the number of antenodals had been reduced to two, however, specializa- tion in this direction appears to have ceased, for no Agrionine is known having fewer than two complete cross-veins, except in rare cases of individual aberration. In this connection it will be useful to quote some remarks made by Prof. Calvert respecting two Mexican speci- mens of Ischnura denticollis Burm., which are in the following terms: 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 223 "Two abnormalities in venation may be mentioned here: One male from Patzcuaro has only one antecubital on the right hind-wing, situated at the level of the submedian cross-vein. One female from Orizaba has the first antecubital on the right hind-wing only about as far from the second as the costal space is wide, and it crosses only the costal, not the subcostal, space."^ In consequence of the dis- continuous antenodal in the 9 , which I have seen, and the single antenodal in the d" lying on the level of the cubito-anal cross-vein in each case, I regard both of them as occupying the intermediate position between the two normal antenodals of Agrioninte. If this view should prove to be well-founded, it would follow that we have evidence of the former existence of at least seven antenodals, of which the second and fourth alone persist in the greater number of recent Agrioninaj. In a hypothetical wing, including all the antenodal cross-veins of which indications have so far been afforded by mor- phology and teratology, the fourth antenodal is that which coincides with the arculus, and this fact enables one to recognize it in all other Agrionine wings. It is also comparatively easy to determine, in any given case, the identity of each of the three antenodals which precede it. But at present I can discover no means of ascertaining the exact homology of the antenodals lying beyond the level of the arculus which occur occasionally in one or two recent genera. In our reconstructed wing, then, we have seven antenodal cross- veins, disposed in the following manner: Nos. 1, 2, and 3 placed before the level of the arculus; No. 4 coinciding more or less exactly with the arculus, and Nos. 5, 6, and 7 lying between the level of the arculus and the nodus. Arranging in tabular form the material which we have had under review, we get this result: With antenodals Nos. 2 and 4: Agrioninae (with the exceptions noted below). With antenodals Nos. 1, 2, and 4-' Chlorolestes fasciata (teratological cT). Paraphlehia quinta (teratological specimens). With antenodals Nos. 1,2, 4, and one other: Podopteryx roseonotata (type cf )• With antenodals Nos. 2, 3, and 4: Neurolestes trinervis (teste De Selys). Neuragrion mysticum. Chlorolestes longicauda (teratological d"). Heteragrion chrysops (teratological 9 ) . ^Biol. Centr.-Amer., Neuropt., p. 127, footnote (1902). 224 PROCEEDINGS OF THE ACADEMY OF [May, With antenodal No. 3 only: Ischnura denticollis (teratological cf). With antenodals Nos. 3 and I^: Ischnura denticollis (teratological 9 ) . With antenodals Nos. 2, 4, and another: Ischnura granti (type 9). Pyrrhosoma nymphula (teratological 9 ) . Thaumatoneura (normally) . With antenodals Nos. 2, 4, and two or three others: Thaumatoneura (occasionally) . With antenodals Nos. 2, 4, 5, 6, and 7: Phenacolestes mirandus. Although Phenacolestes parallelus is believed to have had six antenodal cross-veins, it has not been possible to place it in the table, as no information has been given concerning the position of the veins in relation to the arculus. Looking at the number and arrangement of the antenodal nervures alone, and without having regard to any other considerations, it would appear that among recent genera Thaumatoneura bears the closest resemblance to Phenacolestes. Moreover, this resemblance is accentuated when, as sometimes happens, a fourth, or even a fifth, antenodal is present. But of course the venation of the spaces lying between the nodus and the base of the wing is only one of many characters which must be studied in attempting to arrive at the true affinities of Phenacolestes, and for the present it is perhaps advisable to retain in the subfamily Agrioninse this and other genera associated with it. In conclusion, I have to thank Professor Calvert for his kindness in suggesting amendments to this paper, and particularly for drawing my attention to the two Mexican specimens of Ischnura denticollis recorded by him, and furnishing me with information respecting the British 9 of Pyrrhosoma nymphula contained in his own collection. 1913.] ■ NATURAL SCIENCES OF PHILADELPHIA. 225 the fossil odonate phenacolestes, with a discussion of the venation of the legion podagrion selys. by philip p. calvert. Contents. Phenacolestes Material Studied, p. 225. The Principal Characters of Phenacolestes, p. 227. Comparisons of the fossils Dysagrion (p. 230), Melanagrion (p. 231) and Lithagrion (p. 232) with Phenacolestes. Comparison of Thaumatoneura with Phenacolestes, p. 233. Relationships of Thaumatoneura, p. 233. Comparisons of Philogenia (p. 23.5), Megapodagrion [Allopodagrion] (p. 236), Paraphlebia (p. 237), Dimeragrion (p. 238), Heteragrion (p. 239), Mesagrion, Heteropodagrion and Neuragrion (p. 240), Rhipidolestes (p. 241), Podopteryx (p. 242), Argiolestes (p. 243), Chlorolestes (p. 244) and Various Old World Genera (p. 244) with Phenacolestes. General Discussion of the Value of the Venational Characters compared in the preceding Genera for the Determination of Relationships, p. 245. Synopsis of Venational Characters of Genera of the Legion Podagrion, p. 256. Outline of an Alternative Groui)ing of the Genera of the Legion Podagrion, p. 261. The Relationships of Phenacolestes, p. 262. On the Subfamily Dysagi'ionina? Cockerell, p. 264. Additional Data on Dimeragrion, n. gen., p. 265. Bibliography, p. 270. Explanation of Plate XIV, p. 272. Phenacolestes Material Studied. In 1908, Profe.ssor T. D. A. Cockerell described (1908a) two species of fossil Odonata from Station 14, Florissant, Colo., as Phena- colestes mirandus and P/!.(?) parallelus. A little later (19086) he added a note based on an additional fragment which he referred to the latter species, and in another place (1908c) he gave a figure showing the body as well as the wings, the previous accounts having referred to the wings only. In connection with the original descrip- tion he quotes from a letter from Professor Needham who almost implies that Ph. mirandus is to be placed in de Selys' legion Podagrion of the Agrioninffi (1908a, p. 63). In the latter part of 1910, Professor Cockerell wrote to me that he had found more wings of Phenacolestes, and requested me to study them, in view of some differences of opinion as to its relationship to modern dragonflies. When I accepted this offer, Professor Cockerell sent me four 226 PROCEEDINGS OF THE ACADEMY OF [May, specimens of these fossil wings which, for reference here, I have numbered as follows: No. 1. Labelled " Phenacolestes mirandus Ckll. Florissant," in Professor Cockerell's handwriting; 27 mm. long from base to apex. No. 2. Labelled " Phenacolestes mirandus CkW. Florissant Sta. 12 B (G. N. Rohwer)," in the same hand. Apparently a hind wing. Distorted, length from base to apex as it lies on the stone 26 mm. Nos. 3 and 4. Unlabelled. [These are the two impressions of the same wing, and were collected by Geo. N. Rohwer. T. D. A. Cock- erell.] Apparently a front wing. Length of No. 3 from base to apex 28 mm. ; of No. 4 (apex lost) from base to distal end of stigma 25 mm. They are figured from enlarged photographs on Plate 'XIV as fig- ures 1-4. The beautiful preservation of these wings has rendered possible the drawing up of almost as full a description of the venation as for any living species. Professor Cockerell has very kindly presented specimen No. 3 to the Academy of Natural Sciences of Philadelphia ; the other three specimens will be returned to him. Thanks to the kindness of Dr. F. A. Bather, through the good offices of Mr. C. J. Gahan, I have also studied two fossils of this insect in the British Museum of Natural History, when in London in August, 1912. One of these, catalogued as "No. I 8423," is the paratype of Professor Cockerell's original description of Phenacolestes mirandus. The other, "No. I 15,049," is labelled in Professor Cock- erell's handwriting "Phenacolestes mirandus Ckll. Florissant Sta. 13 B (S. A. Rohwer)." No. I 8423 measures 20.5 mm. in length from the wing-base to the proximal end of the stigma; the distal part of the stigma and the tip of the wing are lacking; the nodus is 9 mm. from the base. No. I 15,049 has lost the stigma and apex of the wing from the distal end of M2 forward (cephalad and distad) and the extreme hind margin between the apices of M2 and Cui; its length along the costa as preserved is 23 mm., the nodus is 10 mm. from base. Use has also been made of an excellent photograph, for which I thank Professor Cockerell and Dr. Max M. Ellis, of the University of Colorado, of an almost perfect wing from the same locality as that of the second specimen quoted in the preceding paragraph. This photograph is reproduced as figure 5 on Plate XIV accompany- ing this paper; it will be designated as No. 5 in these pages and apparently represents a front wing. * 1913.] NATURAL SCIENCES OF PHILADELPHIA. 227 The following account is based, therefore, on six wings in seven impressions. Throughout this paper the Comstock-Needham nomenclature for the wing-veins has been emploj^ed. In the previous literature on the living members of the legion Podagrion the Selysian terms have been used. The equivalents of the two systems are therefore appended here. De Selys: Costa = C.-N. : Costa, C. Subcosta = Subcosta, Sc. Median vein = Ri. Principal sector = Ml. Ultra-nodal sector = Mia. Nodal sector = M2. Subnodal sector = Rs ( -f the bridge, if it be present). 1 Median sector = M3. Short sector = M4. First (or superior) sector of the tri- angle = Cui. Second (or inferior) sector of the tri- angle = Cu2 and Anal (A). Basal postcostal nervule = Cubito-anal cross-vein or c-a. The Principal Characters of Phenacolestes (Plate XIV, figs. 1-5). 1. Nodus at one-third of the wing-length. 2. More than two antenodals. (Four in at least two (Nos. 2, 3, 4) of these specimens, five in No. 5 and in the two cited from Brit. Mus.) 3. Postnodals 17-19. 4. Stigma having its proximal edge oblique. 5. Cells of the wing generally, posterior to Mi, not greatly elongated at right angles to long axis of wing. 6. The veins generally, posterior to Mi, have but a slight caudal curvature shortly before they approach the hind margin of the wing. 7. Between Mi and Mia is only one row of cells throughout to wing- margin. (In No. 5, increased to two rows at five cells' distance from the margin.) 8. Between Mio and M2 is one row of cells, increasing to two and then three rows, and so continuing to wing-margin. 1 Throughout this paper "Rs" has been used as the equivalent of de Selj^s' "*' subnodal sector. " 228 PROCEEDINGS OF THE ACADEMY OF [May, 9. AI2 separates from Mi at five-thirteenths ( = .38) of the distance from nodus to stigma. (In No. 5, however, the distance is only .28, in No. I 8423 B. M. it is .26.) 10. Between M2 and Rs is one row of cells increasing to two and then three rows, and so continuing to the margin. 11. Rs separates from Mi + 2 at the subnodus. (Nos. 3, 4, 5, and B. M. I 15,049 show this clearly; B. M. I 8423 apparently agrees with them; No. 1 has the point of separation slightly proximal to the subnodus, while in No. 2 this part is indis- tinguishable.) 12. Between Rs and Ms is one row" of cells, increasing to two and then to three rows of cells. 13. Arculus slightly proximal to the second antenodal.- 14. M3 separating from M1+2 at six-tenths' to three-fourths' way from arculus to subnodus. 15. Between Ms and M4 are (a) at least two cross-veins proximal to the level of the subnodus,^ and (6) at the wing-margin are 4-5 rows of cells. 16. Quadrilateral with («) its proximal and distal sides strongly diverging caudad and (6) its distal side more than one-and one-half times as long as its proximal side. 17. Between Mi and Cui are (a) seven antenodal cells {sensu Selysii) and (6) at the wing-margin four to five rows of cells. 18. Cubito-anal cross-veins one, which is situated between the levels of the first and second antenodals. 19. Between Cui and Cu2 at the wdng-margin are about two rows of cells (three rows in B. M. No. I 15,049). 20. Area posterior to Cu2 without distinct branches, but with three to four rows of cells. 21. Anal vein separating from the hind wing-margin (a) proximad to the level of the arculus and (6) proximad to the level of the cubito-anal cross-vein. 22. Anal cross-veins, proximal to the level of the distal end of the quadrilateral, one. Compared with Professor Cockerell's original description of Phenacolestes mirandus (1908a, p. 61), the present material shows the following differences : Antenodal cross-veins^ four in some specimens instead of five. Basal space {i.e., cell M1-4) 4 mm. long, instead of nearly 5 mm. 2 For B. M. No. I 8423 I have even noted, "Arculus very slightly more distal than midway between the two normal antenodals." » The second, or distal, of these is actually at the subnodus in the two British Museum specimens. 4 Prof. Cockerell speaks of antenodal and postnodal sectors meaning these cross-veins. This word is not in accordance with the usage of other authors on the Odonata. R3 in the same description should be Rs. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 229 Quadrangle with its upper side distinctly shorter than the lower side. Ms separating from M1+2 at 3.5-4 mm. from the arculus, 2.5-1 mm. from level of nodus. Postnodal cross-veins'* 17-19, instead of 21. Stigma bounding 3^ or 4| cells above, preservation imperfect in most of these specimens. Ml and M2 separating at as much as 10.75 mm. from arculus, instead of 9.67 mm. Beyond the ciuadrangle, i.e., between M4 and Cui, are seventeen single cells (Nos. 3 and 4), or sixteen (No. 5), then two rows increas- ing; hence very different from Prof. Cockerell's statement, p. 62, which does not seem to agree with his figure (13 of Plate V). There is but one row of cells between Mi and Mia throughout, thus agreeing with the description of P/i.(?) parallehis (I.e., p. 62) in distinction from Ph. mirandus. Two specimens, Nos, 1 and 3, are sufficiently preserved to enable a count of the cells between M2 and Rs to be made. From the margin proximad these are, in No. 1, 7 marginal cells, then 3 rows for 3-4 cells, then 2 rows for 6 cells, then 1 row (which is consequently met at 10-11 cells in from the margin), this single row comprising about 15 cells to the origin of Rs, three of these 15 being basad of the origin of M2. Corresponding figures for specimen No. 3 are 5 (?) marginal cells, then 3 rows for 4 cells, then 2 rows for 3 cells, then 1 row (which is consequently met at 8 cells in from the margin), this single row comprising about 20 cells to the origin of Rs, 5| of these 20 being basad of the origin of M2. In B. M. No. I 8423, this single row consists apparently of 15 cells, 4 of which are basad of the origin of M2. In B. M. No. I 15,049, this single row consists of 15 or 16 cells, 3 and the greater part of the fourth of which are basad of the origin of M2; No. 5 appears to be very similar. None of these arrange- ments is identical with that described for Pfi. mirandus, where, however, the single row of cells is met at 11 cells in from the margin. Prof. Cockerell gives two formulae for Ph. mirandus and Ph.{?) parallelus, respectively (I.e., p. 62), these formulae being obtained by taking "a section of the wing down from the basal part of the stigma to Cu2, and count[ingl the numbers of rows of cells successively met between the longitudinal veins .... commencing with that between Ri and Mi." The numbers of cells so obtained will depend on the exact position of the line of section, but Prof. Cockerell does not specify this. Choosing, as the two points fixing this line, the 230 PROCEEDINGS OF THE ACADEMY OF [May, inferior proximal angle of the stigma and the point where Cu2 meets the hind wing-margin, the following formulae for the present material were obtained: No. 1: 1, 1, 2, 1, 2, 2, 3, 2. No. 2: (too imperfect). No. 3: 1, 1, 2, I, 2, 2, 3, 2. No. 4: 1, 1, 2, 1, 2, 2, 3, 2. No. 5: 1, 1, 2, 2, 2, 2, 3, 2. No. I 15,049: 1, 1, 2, 2, 2, 2, 3, 2. We have here two different formulae, neither of which agree with either of Prof. Cockerell's formulae. Guided b}^ the amount of variation in venational details of one and the same living species of Agrioninae, I am of the opinion that the differences shown by the present material, inter se and from Prof. Cockerell's data, do not justify the specific separation of the specimens before me from Ph. mirandus. All of the present material show more or less distinctly the dark band across the wing, described by Prof. Cockerell; it is best illus- trated in our figure 5. Phenacolestes agrees with the venational characters of the legion Podagrion, as stated by de Selys in 1886,^ with the one exception that the wings are not "petiolees beaucoup plus loin que la nervule basale postcostale." I think that there can be no doubt that its nearest living aUies are to be found in this group. I have therefore made comparisons with a number of genera of this legion, especially American, with the results set forth below. As I have had only five of the fossil wings and photographs of one other before me and am unable to determine whether all of them are of the fore or hind pairs, I have not thought it necessary to employ any great number of specimens of the living species for these comparisons. Comparison of th£; fossil Dysagrion (packardii, fredericii) WITH Phenacolestes. According to the figures and descriptions of this Eocene genus, from the Green River shales of Wyoming, given by Scudder,^ Dysa- grion and Phenacolestes agree in the characters above numbered 2, 3, 4, 5, 7,'^ 10, 11,^ 14, 156, 16a and b, 20, 21a and b, and 22, and 5 Mem. Couron. Acad. Belg., XXXVIII, p. 30. 6 Tertiary Insects of North America, 1890, pi. 6, figs. 3, 9, 14 and pp. 128-133. ' In D. packardii, but not in D. fredericii. 8 As Scudder has pointed out, p. 129, however, the subnodus is bent proximad (instead of distad as is the case in Phenacolestes). 1913.] NATURAL SCIENCES OF PHILADELPHIA, 231 differ in the following characters, the difference shown by Dijsagrion being stated: I. Nodus at .37 of the wing-length. 6. The veins generally, posterior to Mi, have a slighter caudal curvature as they approach the hind margin. 7. Between Mi and Mia are two rows of cells beginning under the stigma (D. fredericii, not D. packardii). 8. Between Mia'and M2 is one row of cells increasing to two, three, and finally five rows. 9. M2 separates from Mi at .15^ of the distance from nodus to stigma. 12. Between Rs and Ms is one row of cells increasing to two, three, and eventually eight rows. 13. Arculus apparently at the second antenodal. 15a. Between Ms and"M4 is apparently only one cross-vein proximal to the level of the subnodus. 17. Between Mt and Cui are (a) 8-10 antenodal cells (the quadri- lateral is much shorter than in Phenacolestes) and (6) at the wing-margin onl}^ one row of cells. 18. Cubito-anal cross-veins two in D. fredericii, one of them proximal, the other distal, to the arculus; none showTi in D. packardii. 19. Between Cui and Cu2 at wing-margin one {D. packardii) or three (D. fredericii) rows of cells. Comparison of the fossil jNIelanagrion (umbratum) with Phenacolestes. According to the figures and description of this Miocene genus from Florissant, Colo., given by Scudder,!" Melanagrion and Phena- colestes agree in the characters above numbered 5, 7, S,^^ 9, 10, ^^ 13, 14, 15a, 16a and b, 18, and differ in the following characters, the difference shown by Melanagrion being stated : 1. Nodus at .3 (?) of the Aving-length. 2. Only two antenodals. 3. More than 26 postnodals (27, Scudder). 4. Stigma having both proximal and distal ends much less oblique. 6. The veins generally, posterior to Mi, have a slighter caudal curvature as they approach the hind margin. II. Rs separates from'Mi+2 slightly proximal to the subnodus. » This is taken by measurement from Scudder's figure, although he says that the '"nodal sector arises from the principal .... scarcely more than one-fifth way to the pterostigma" (p. 129), and in another place (p. 128) "at scarcely one-fifth the distance from the nodus to the pterostigma." Whether figure oi- text be correct, both differ from the condition in Phenacolestes. 10 Scudder, Tertiary Insects of North Aynerica, 1890, pi. 13, figs. 12, 14, p. 136, described this form as a Lithagrion. It was made the type of a new genus, Melanagrion, by Prof. Cockerell in Bull. Amer. Mus. Nat. Hist., XXXIII, p. 138, 1907. . ,. , " At the extreme margin there are four rows m Melanagrion. 16 232 PROCEEDINGS OF THE ACADEMY OF [May, 12. Between Rs and Ms is one row of cells increasing to two rows. 156. Between Ms and M4 at the wing-margin are only three rows of cells, 17. Between M4 and Cm are (a) about three antenodal cells and (h) at the margin one row of cells. 19. Between Cm and Cu2 at the wing-margin appear to be but one row of cells. 20. Area posterior to Cu2 with no more than two rows of cells. 21. Anal vein separating from the hind wing-margin (a) distad (fig. 12) or proximad (fig. 14) to the level of the arculus and (6) at the level of the cubito-anal cross-vein (fig. 14, cross-vein not shown in fig. 12). i"' 22. No anal cross-veins, according to both figures. Comparison of the fossil Lithagrion (hyalinum) with Phenacolestes. According to the figure and description of this ^Miocene genus from Florissant, Colo., given by Scudder^^ and some notes on more recently found specimens kindly communicated by Prof. Cockerell, Lithagrion and Phenacolestes agree in the characters above numbered 1, 3, 5, 7, 8, 9, 10 (probably), 11, 14, 15a, 16a and h, 18, and differ in the following characters, the differences shown by Lithagrion being stated: 2. Probably only two antenodals.^'* 4. Stigma having its proximal edge very much less oljlique. 6. The veins generally, posterior to Mi, have a slighter caudal curvature as they approach the wing-margin. 12. Between Rs and iVls is only one row of cells to the wing-margin. 13. Arculus at the second antenodal. ^^ 156. Between Ms and M4 at the wing-margin are only two or three rows of cells. 17. Between M4 and Cui are (a) three antenodal cells and (6) one row of cells increasing to two rows only at the extreme margin. 19. Between Cui and Cu: at the wing-margin is only one row of cells. 20. Area posterior to Cu2 with only one row of cells. 21. Anal vein, separating from the hind margin of the wing distad to the levels (a) of the arculus and (6) of the cubito-anal cross- vein. 22. Anal cross-veins proximal to the level of the distal end of the quadrilateral apparently none. 12 Scudder's description, p. 136, says, "The wings are petiolated veiy nearly up to the first postcostal nervule, which is placed shortly before the base of the quadrilateral. " 13 Tertiary Insects of North America, 1890, pi. 13, fig. 4, and pp. 128, 134-136. 1^ Scudder's figure, I.e., shows but one, at the arculus^ Compare Prof. Cock- erell's statements on this point in Bull. Amer. Mus. Nat. Hist., XXXIII, p. 137 (1907); XXXIV, p. 63 (1908); Amer. Journ. Sci., XXVI, p. 69 (1908). 15 A sketch kindly sent by Prof. Cockerell shows the arculus a little distal to- the second antenodal. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 233 COxMPARISON OF ThAUMATONEURA (iNOPINATA AND PELLUCIDA) WITH PhENACOLESTES. {Til. inopinata cf 9, Th. pellucida d^ , Costa Rica). These two genera agree in the characters above numbered 2, 11, 14 (except as noted below), and 21a. As regards character 11, the separation point of Rs in Thaumatoneura varies and may be a Uttle proximal to, at, or a Httle distal to, the subnodus. The two genera differ in characters given below; after each nmnber the difference shown by Thaumatoneura is stated: 1. Nodus at about one-fifth of the wing-length. 3. Postnodals very numerous, about 70. 4. Proximal edge of stigma more obhque. 5. Cells more elongated at right angles to long axis of wing. 6. Stronger caudal curvatures of the veins generally as the}' approach the hind margin of wing. 7. The one row of cells between lsl\ and Mia increases to about 10 rows at the wing-margin. 8. The one row of cells between ]Mia and M2 increases to 6+ rows at the wing-margin. 9. M2 separates from Mi at nearly one-half way from nodus to stigma and at a less acute angle. 10. Between M2 and Rs at the wing-margin are 6-7+ rows of cells. 12. Between Rs and Ms at the wing-margin are 7-8 -f- rows of cells. 13. Arculus at the second antenodal. ' 14. Ms separates from M1+2 at a less acute angle. 15. Between ^h and M4, (a) no cross-veins proximal to the level of the subnodus, (6) at the wing-margin 10-|- rows of cells. 16. Quadrilateral with ia) its proximal and distal sides subparallel and (6) subeciual. 17. Between ]\I4 and Cui are (a) 3-6 antenodal cells and ih) at the wing-margin 8+ rows of cells. 18. Cubito-anal cross-veins two, one proximal to the level of the first antenodal cross-vein, the other below the middle of the quadrilateral. 19. Between Cui and Cu2 at wing-margin are about 12 rows of cells. 20. Area posterior to Cu2 much larger, Cu2 with many branches. 216. Anal vein separates from the hind margin of the wing distad to the level of the proximal cubito-anal cross-vein. 22. Anal cross-veins proximal to the level of the distal end of the quadrilateral 3-5. Relationships of Thaumatoneura. Some words maj' be added here as to the retention of Thaumato- neura in this group after the diverging opinions of Professors Needham and Foerster. The late Mr. McLachlan, on describing Thaumato- 234 PROCEEDINGS OF THE ACADEMY OF [May, neura (1897), referred it to the Calopteryginffi. In 1902, I placed it in the legion Podagrion of the Agrioninse.^'' In 1903, Professor Needham associated it with the Anormostigmatini ( = legion Pseudostigma of Selys), stating that "it has all the essential vena- tional characters of this group, and surely these are sufficiently distinctive."^^ A comparison of Thaumatoneura with these essential venational characters'^ gives the following result. Thaumatoneura agrees with the Anormostigmatini in that Us separates from M1+2 at or very close to the subnodus and the part of the wing beyond the nodus is greatly enlarged. On the other hand, Thaumatoneura differs from the Anormostigmatini in that, while the stigma is not braced, it is not diffuse or lost ; the matching of cross- veins is not so marked; the longest vein between Mi and M2, which, in the preceding pages, we have assumed to be Mia, does not parallel M2 more than it parallels Mi and lies almost midway between Mi and M3; it has shorter supplementary sectors between itself and Mi and also between itself and M2; these latter tend to be longer and better developed than those anterior to Mia, and in this Thaumato- neura resembles Paraphlehia and differs from the Anormostigmatini. This tendency to the development of more rows of cells between Mio and M2 than between Mi and Mia is emphasized in Philogenia carrillica, P. terraha, Heteragrion tricellulare, H. erythrogastrum and Argiolestes icterotnelas which have no supplementary sectors between Ml and Mia, but two between Mio and M2; all these are Podagrionines. Even in more reduced venations of the same group, as in Allopoda- grion there are no supplementary sectors between Mi and Mia, but still one between Mia and M2. On the other hand, even in Anormos- tigmatini with the most reduced venation, e.g., Mecistogaster, there is a longer supplementary sector between Mi and Mia than between Mia and M2. Professor Needham himself has pointed out some further differences of Thaumatoneura from Megaloprepus, and still others may be added. Thus the nodus and quadrilateral (quad- rangle) are no more approximated in Thaumatoneura than in many other undoubted members of the legion Podagrion (See Table I, p. 250, posted). Thaumatoneura possesses more supplementary sectors between M2 and Rs and between Rs and Ms. I believe, therefore, that Thaumatoneura shows more resemblances to the legion Podagrion than to the legion Pseudostigma, but it does not i« 1902, pp. 29-32. Biol. Centr. Amer. Neur., p. 58. " Genealogic Study, pp. 748-749, footnote. 18 Needham, I.e., p. 748. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 235 seem impossible that the Anormostigmatini may have descended from some form like Thaumatoneura. Professor Foerster considers Thaumatoneura as a connecting form between the Calopteryginse and the legion Podagrion. ''which is better left with the Calopteryginse." "Bei .... Thamnato- neura ist der aussere Ast des Sector inferior trianguli convex nach vorn gebogen wie bei alien echten Calopterygiden. Bei alien Agrioninen ist er dagegen schwach convex nach hint en. "^^ Many Calopteryginse (Selys) have not Cu2 convex anteriorly, of course, such as Micromerus, Rhinocypha biforata and other species, Libellago, etc., but perhaps these are not ''echt." On the other hand, such Agrionines as Megaloprepus, Microstigma , and Paraphlehia also have Cu2 convex anteriorly, while a tendency in the same direction is observable in Argiolestes and even in Hyponeura, so that I cannot see that any strong argument for the Calopterygine affinities of Thaumatoneura can be drawn from this character. Comparison of Philogenia (terraba, carrillica) with Phenacolestes. {Ph. terraba cf , Ph. carrillica cf 9 , Costa Rica.) These two genera agree in the characters above numbered 4, 5, 6, 7, 10,-0 11 {carrillica, not terraba), 12,2o 14, 16, 18. These two genera differ in characters given below; after each number the difference shown by Philogenia is stated. 1. Nodus at one-fourth of the wing-length. 2. Only two antenodals. 3. Postnodals 22-30. 8. Between Mia and M2 is at first but one row of cells which, more distad, is increased to two and then to three rows by the presence of two distinct curvilinear {i.e., not broken) supple- mentary sectors, the posterior of which arises proximad to the anterior; each of these three rows increases to a double row before reaching the wing-margin at an individually variable distance therefrom. 9. M2 separating from Mi at one-third of the distance from nodus to stigma. 11. Rs separating from M1+2 a little distad to the subnodus {terraba, not carrillica). 13. Arculus slightly distal to the second antenodal. 19 Jahrh. Nassau. Ver. f. Naturk. in Wiesbaden, 62, p. 214, 1909. -" At the very margin itself, each of the three rows in Philogenia tends to divide into two rows, but each of these last extends inward only 2-3 cells from the margin. 236 PROCEEDINGS OF THE ACADEMY OF [May, 15. Between Ms and M4 is (a) one cross-vein proximal to the level of the subnodus and (6) at the wing-margin are two or three rows of cells. 17. Between M4 and Cui are (a) 2-3 antenodal cells and (b) at the wing-margin one row of cells. 19. Between Cui and Cu2 at the wing-margin is one row of cells. 20. Area posterior to Cu2 less developed, having only one row of cells. 21. Anal vein separating from the hind wing-margin at the mid-level of the quadrilateral, hence distad both to (a) the level of the arculus and (6) that of the cubito-anal cross-vein. 22. No anal cross-vein proximal to the level of the distal end of the quadrilateral, but there is a cross-vein continuing the vein which forms the distal end of the quadrilateral to the wing- margin; this cross- vein is absent in Phenacolestes, Thaumato- neura and Paraphlebia. Note. — The wing figured by Prof. Needham (Genealogic Study, PL 53, fig. 4) as that of "Philogenia sp.?" is not Philogenia, but Megapodagrion Selys sens. kit. (AUopodagrion Foerster). Comparison of IMegapodagrion (nebulosum^^) with Phenacolestes. {M. nebulosimi 2 cf, Bolivia.) These two forms agree in the characters above numbered 1, 3, 5, 7, 10, 11, 14, 16, 18, 21a, 22. These two forms differ in the characters given below; after each number the diflference shown by the Megapodagrion is stated. 2. Only two antenodals. 4. Stigma having its proximal edge less oblique. 6. The longitudinal veins show less curvature. 8. Between Mia and M2 at the wing-margin are two rows of cells. 9. M2 separates from Mi at .45 to .41 of the distance from nodus to stigma. 12. Between Rs and Ms at the wing-margin is only one row of cells. 13. Arculus at the second antenodal. 15. Betw^een Ma and M* is (a) only one cross-vein proximal to the level of the subnodus and (6) at the wing-margin are two rows of cells. 17. Between M4 and Cui are (a) 3-5 antenodal cells and (6) at the wing-margin only one row of cells. 19. Between Cui and Cu2 at the wing-margin is only one row of cells. 20. Area posterior to Cu2 wath only one row of cells. 21 Megapodagrion nebulosum Selys is referable to the recently proposed genus AUopodagrion of Forster, Wien. Ent. Zeit., XXIX, p. 51, 1910. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 237 216. Anal vein separating from the hind margin of the wing at or slightly distad to the cubito-anal cross-vein. iVote.— The wing figured by Prof. Needham {Genealogic Study, pi. 53, fig. 4) as that of ''Philogenia sp.?" is really that of a Mega- podagrion Selys sens, hit., AUopodagrion Foerster. Comparison of Paraphlebia (zoe and abrogata) with Phenacolestes. (P. zoe d^ 9 Mexico, P. abrogata cf Guatemala.) These two genera agree in the characters above numbered 4, 5, 10 {abrogata only), 12 {abrogata only), and 156 {abrogata only). These two genera differ in the characters given below; after each number the difference shown by Paraphlebia is stated. 1. Nodus at one-fifth of the wing-length. 2. Only two antenodals. 3. Postnodals 40 ±:. 6. Stronger caudal curvatures of the longitudinal veins generally as they approach the hind margin of the wing, although less strongly curved than in Thaumatoneura. 7. The one row of cells between ]Mi and Mia increases to 3 rows {abroqata) or 4-6 rows {zoe) at the wing-margin. 8. The one row of cells between INIia and M2 increases to 3 rows {abrogata) or 4-6 rows {zoe) at the wing-margin. 9. M2 separates from Mi at one-half {abrogata) or thirteen-thirtieths ( = .43) of the distance from nodus to stigma {zoe). 10. Between M2 and Rs at the wing-margin are 3-6 rows of cells {zoe) . 11. Rs separates from M1+2 distad to the subnodus. 12. Between Rs and Ms at the wing-margin are 3-6 rows of cells {zoe). 13. Arculus at or even slightly distal to the second antenodal. 14. Ms separating from M1+2 at or distad to the subnodus. 15. Between jNIs and Mi (a) are no cross-veins proximal to the level of the subnodus {zoe, abrogata), and (6) at the wing-margin are 5-7 rows (front wings, zoe) or 6-11 rows (hind wings, zoe) of cells. 16. Quadrilateral with (a) its proximal and distal sides subparallel or slightly diverging caudad, and (6) its distal side hardly more than one and one-half times as long as the proximal side. 17. Between :Sl4 and Cui is (a) one, or less than one, antenodal cell, and (6) at the wing-margin are 3 (abrogata) or 3-6 {zoe) rows of cells. 18. Cubito-anal cross-veins two, one between the levels of the first and second antenodals, but nearer to that of the first, the other nearly below the middle (or distal to the middle) of the quadri- lateral. 238 PROCEEDINGS OF THE ACADEMY OF [May, 19. Between Cui and Cu2 at the wing-margin are 10-14 rows of cells in zoe, seven (front wings) or five (hind wings) rows in ahrogata. 20. Area posterior to Cu2 le-ss developed and with only two (ahrogata, zoe 9 ) or three (zoe cf ) rows of cells. " 21. Anal vein separating from the hind wing-margin (a) distad to the level of the arculus and (b) nearly at the level of the second (distal) cubito-anal cross-vein. 22. Anal cross-veins, proximal to the level of the distal end of the quadrilateral, tivo (one in the front wings of the single female zoe) . Comparison of Dimeragrion n. gen. (percubitale n. sp.) with Phenacolestes. (D. percubitale 14 6^, 6 9 , British Guiana, Plate XIV, fig. 6.) These two genera agree in the characters above numbered 1, 5, 7,23 g^ 9^ 12,24 16^^ 16^, These two genera differ in characters given below; after each number the difference shown by Dimeragrion is stated. 2. Twoantenodals.2^ 3. Postnodals 20-27 (front wing), 16-24 (hind wing), fewer in the females than in the males. 4. Stigma having its proximal edge more oblique. 6. The veins generally, posterior to Mi, have a slighter caudal curvature, or are almost straight, as they approach the hind margin of the wing. 10. Between M2 and Rs is but one row of cells which at a distance of usually two2^ cells from the '^\-ing-margin increases to two rows. 11. Rs separates from M1+2 at the first postnodal, or a little proximad thereto, or between the first and second postnodals. 13. Arculus at or very slightlj^ distal to the second antenodal. 14. M3 separates from M1+2 a little proximad to the subnodus, at least at seven-eighths' distance from arculus to subnodus. 2^ 2- The hind wings of some individuals, c? 9 , of P. duodecima have only one row of cells here. -^ Two rows of cells between Mi and Mio for short distances proximad to the level of the stigma have occasionally been noted in Dimeragrion, viz. : for three cells in one front wing each of two males and for two cells in the other front wing of one of these same two males. -* Each of the three rows of cells in the terminal part of the area Rs increases to two rows at the wing-margin in one front and one hind wing of the same male. -* A third antenodal placed between the usual two and confined to the costal space exists in the right hind wing only of one male. -^ This increase to two rows has been noted as beginning at three cells from the margin in 2 front wings and 2 hind wings; at four cells in 3 front wings, 1 hind wing; at five cells in 2 front wings, 1 hind wing; at six cells in 2 front wings, 2 hind wings; at seven cells in 1 hind wing. All the individuals, seven in number, showing these variations are males. ^ In one wing only it separated at the subnodus. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 239 15. Between ]Mi-3 and M4 are (a) no cross-veins proximal to the level of the subnodus, and (b) between Ms and jM4 is only one row of cells to the wing-margin. 17. Between M4 and Cui are (a) two to three antenodal cells {sensu Sehjsii) and (6) only one-^ row of cells to the wing-margin. 18. Cubito-anal cross-veins between the levels of the two antenodals varying from . one to four, most frequently two ; often an additional cross-vein proximal to the level of the first antenodal.-'* 19. Between Cui and Cu2 is only one row of cells to the wing-margin. 20. Area posterior to Cu2 with only one row of cells. 21. Anal vein separating from the hind wing-margin (a) distad to the level of the arculus and (6) distad to the level of the cubito-anal cross-vein or veins. 22. Anal cross-veins, proximal to the level of the distal end of the quadrilateral, one, situated a little proximad to the oblique vein which continues the distal side of the quadrilateral caudad, or at that oblique vein. Comparison of Heteragrion (tricellulare) with Phenacolestes. (H. triceUulare cf , Guatemala.)'"' These two forms agree in the characters above numbered 0, 7, 8, 16, 18, 21a. These two forms differ in characters given below ; after each number the difference shown by the Heteragrion is stated. 1. Nodus at one-fourth. of the wing-length. 2. Only two antenodals. 3. Postnodals 21-25. 4. Proximal edge of pterostigma more oblique, but the difference is less marked than in Thaumatoneura. 6. Longitudinal veins hardly curved at all caudad on approaching the wing-margin. 9. M2 separates from Mi at three-sevenths ( = .43) of the distance from nodus to stigma. 10. Between M2 and Rs at the wing-margin is but one row of cells. 11. Rs separates from M1+2 far distad {e.g., five to six cells) to the subnodus. 12. Between Rs and M3 at the wing-margin is but one row of cells. 13. Arculus at the second antenodal. 14. Ms separating from M1+2 at or barely proximad to the subnodus. 15. Between Ms and M4 are (a) no cross-veins proximal to the level of the subnodus, as results from No. 14, and (6) at the wing- margin only one row of cells. 28 Two rows exist in both hind wings of each of two females and in one hind wing of one male. 2^ For details see the specific description of Dimeragrion percubitale, postca, p. 269. 30 The wing of Heteragrion flavovittatum has been figured by Xeedham {Geneal. Study, pi. 53, fig. 6). 240 PROCEEDINGS OF THE ACADEMY OF [May, 17. Between M4 and Cui are (a) three antenodal cells'^^ and (6) at the wing-margin only one row of cells. 19. Between Cui and Cu2 at the wing-margin only one row of cells. 20. Area posterior to Cu2 less developed, having only one row of cells. 216. Anal vein separating from the hind wing-margin at or distad to the cubito-anal cross-vein. 22. Anal cross-vein as stated above for Philogenia. Comparison of Mesagrion, Heteropodagrion, and Neuragrion WITH PhENACOLESTES. ■ Of three other American genera of the legion Podagrion, Mesagrion Selys, Heteropodagrion Selys and Neuragrion Karsch, each represented b}^ a single species, the first from Bogota, the second from Quito, the third from Ecuador without more definite locality, I have seen no material. According to the description of de Selys (1886), Mesagrion agrees with PhenacoJestes in characters above numbered 3, 7 (probably), 8, 12, and 16a, and differs from Phenacolestes in the following characters: 2. Only two antenodal cross-veins. 10. Between M2 and Rs only one row of cells. 11. Rs separates from M1+2 distad to the subnodus. 14. Ms separates from M1+2 a little distad to the subnodus. 156 (Probably one row of cells between Ms and M4). 17fl. Between M4 and Cm are two antenodal cells and h (probably one row of cells at the wing-margin). 18. Cubito-anal cross-veins one, situated proximad to the level of the first antenodal cross-vein. 19. (Probably one row of cells between Cui and CU2). 21. Anal vein separating from the hind margin of the wing (a) distad to the level of the arculus, and (b) distad to the level of the cubito-anal cross-vein. According to de Selys' description (1886), Heteropodagrion agrees with Phenacolestes in characters above numbered 7 (probably), 10, 12. 14, and 16a, and differs from Phenacolestes in Nos. 2, 11, 156 (probably), 17a (and 6 probably), 18, and 21 in the same particulars as Mesagrion is above stated to differ from Phenacolestes. Heteropodag- rion further differs from Phenacolestes in the following characters : 3. Postnodals 20-23. 8. (Probably one^^^ j.^^ Qf ^ells between Mio and M2.) . 21 Other species of Heteragrion have but two or one antenodal cell (Selys, 1886, pp. 54, 5.5). 2- Dr. Karsch, in hi.s description of Neuragrion, states that it has "zwei Schalt- sectoren .... zwischen dem Nodal- und Ultranodalsector, " and, further on, that it agrees in this respect with Heteropodagrion, but de Selys' description of the latter is silent on this point, (although not for the same area'of Mesagrion) and, I think, implies the absence of "Schaltsectoren" here. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 241 According to Karsch's clescription,^^' Nenragrion agrees with Phenacolestcs in characters above numbered 2 (but for the hind wings only), 3^ 8, 10, 12, 14 (in so far as "Der Mediansector entspringt aus dem Principalis vor der vom Nodus absteigenden Ader"), and 16a, and differs from Phenacokstes in the following characters: 2. Only two antenodals on the front wings. 3. Postnodals 20-21. 11. Rs separates from M1+2 near the first postnodal cross-vein. 13. Arculus distal to the normal second antenodal. 156. Between Ma and M4 probably only one row of cells to margin. 176. Between M4 and Cui probably only one row of cells to margin. 18. Cubito-anal cross-vein apparently proximal to ("vor," not "von"?) the level of the first antenodal. 19. Between Cui and Cu2 at wing-margin probably only one row of cells. 21. Anal vein separates from the hind wing-margm (a) at the level of the arculus and therefore (6) distad to the level of the cubito-anal cross-vein. Comparison of Rhipidolestes (aculeata) with Phenacolestes. {Rhipidolestes aculeata inhabits Formosa.) According to the description and figure of Dr. Ris (1912), these iwo forms agree in the characters above numbered 1, 5, 6, 7, 8, 9, 10,=*^ 12,35 i5ff^ iQa (and perhaps 166), 18, 19, and differ in the fol- lowing characters possessed by Rhipidolestes: 2. Only two antenodals. 3. Postnodals about 22 (front wing) and 21 (hind wing). 4. Stigma, although having its proximal edge of about the same obliquity as in Phenacolestes, is shorter proximo-distally and its distal edge is less oblique. 11. R.S sei)arates from M1+2 proximad to the subnodus at very nearly three-fourths' distance from arculus to subnodus. 13. Arculus at the second antenodal. 14. Ms separates from M1+2 at mid-way from arculus to subnodus. 156. Between Ms and M4 at the wing-margin are three rows of cells. 17. Between M4 and Cui are (a) three antenodal cells and (6) at the wing-margin three rows of cells. 20. Area posterior to Cu2 with only one row of cells. ^* Societas Entomologica VI, p. 10.5, 1891. Neuragrion was described from a single female. ■■'^"Im Hinterfliugel drei Antecubitalqueradern, deren mittlere aui den bub- costdlramii beschrankt ist." 35 Each of the three rows in the terminal parts of these M2 and Rs areas may divide itself into two rows at two or three cells' distance from the wing-margin. 242 PROCEEDINGS OF THE ACADEMY OF [May,. 21. Anal vein separating from the hind wing-margin (a) distad to the level of the arculus and (b) distad to the level of the cubito- anal cross- vein. 22. Anal cross-vein at the vein descending from the distal end of the quadrilateral. Comparison of Podopteryx (roseonotatus) with Phenacolestes.-^^ (P. roseonotatus cf type of Selys (from Aru), 1 cf 1 9 Queensland determined by Mr. Herbert Campion; all three in the British Museum.) These two genera agree in the characters above numljered 5, 7,. 8^37 10,38 11^39 1240, 16, 176, and 18.^^ These two genera differ in the characters given below; after each number the difference shown by Podopteryx is stated. 1. Nodus at one-fourth of the wing-length. 2. More often only two antenodals.**- 3. Postnodals 32-35. 4. Stigma less oblique, shorter in its proximo-distal dimension in proportion to its antero-posterior dimension. 6. The veins generally, posterior to Mi, have a more pronounced caudal curvature as they aJDproach the hind margin of the wing. 9. M2 separates from Mi at .37 to .43 of the distance from nodus to stigma. 13. Arculus at the second antenodal.^^ 2" I am indebted to Mr. Herbert Campion for first calling my attention to the desirability of comparing this genus with Phenacolestes. " There are 7-8 rows at the extreme margin, however. ^^ There are 5-7 rows at the extreme margin, however. ^^ In both front wings of the Queensland male and in the left front wing of the female Rs is united with Ms for from one-half to one cell distad of the subnodus. ■*" There are 5-6 rows at the extreme margin, however. ^1 The right hind wing of the type male, the right front and left hind wings of the Queensland female have a second cubito-anal cross-vein proximal to the normal one and nearly mid-way between the levels of the first and second ante- nodals; the normal cubito-anal cross-vein is, in all, nearer to the level of the second antenodal. Prof. F. Foerster has also noted (Termesz. Fiiz. XXIII, p. 104, 1900) an instance of two cubito-anal cross-veins in Podopteryx. *- The type male has three antenodals on all four wings, the third being distal to the other two and not reaching posteriorly beyond the subcosta. The two Queensland examples have only two antenodals on all the wings. The type male has also a subcostal cross-vein, proximal to the first antenodal, on both front wings and the right hind wing; this is lacking in the Queensland specimens. ^^ Slightly distal to the second antenodal on the two wings of the right side of the Queensland male. This is an appropriate place to record certain abnormalities of the type male, already mentioned by de Selys (1886); three of its wings have each a single medio-cubital cross-vein which, on the right front wing, is slightly proximal to the level of the normal first antenodal, but on the right hind wing and left front wing is slightly distal to the normal first antenodal. On the left hind wing there is merely a slight rudiment or vestige of such a cross-vein pro- jecting forward as a stump from Cu slightly distad to the level of the first ante- nodal. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 243 14. Ms separates from M1+2 at .75 to .83 of the distance from arculus to subnodus. 15. Between Ms and M4 is (a) only one cross-vein proximal to the level of the subnodus and (6) one row of cells increasing to 9 to 11 rows at the wing-margin. 17a. Between M4 and Cui are 3+ to 5 antenodal cells (sensu Selysii). 19. Between Cui and the very much angidated Cu2 is one row of cells. '20. Area posterior to Cu2 with many branches from that vein and four (front wings) or five (hind wings) rows of cells between it and the wing-margin. 21. Anal vein separates from the hind margin (a) at or slightly distad to the level of the arculus and therefore (6) much more distad to the level of the cubito-anal cross-vein. 22. More often no anal cross-veins."*^ Comparison of Argiolestes (icteromelas) with Phenacolestes. (.4. icteromelas cf 9 , Victoria, Australia.) These two forms agree in the characters above numbered 1, 3, 5, 7, 8, 10, 11, 12, 14, 16, 18. These two forms differ in the characters given below; after each number the difference shown by the Argiolestes is stated. 2. Only two antenodals. 4. Proximal edge of pterostigma nearh' as in Phenacolestes, but the distal edge much more oblique. 6. Longitudinal veins posterior to Mi with a stronger caudal curvature as they approach the margin. 9. M2 separates from Mi at four-tenths to one-half of the distance from nodus to stigma. 13. Arculus at or slightly distal to the second antenodal. 15. Between Ms and M4 is (a) one cross-vein proximal to the level of the subnodus, and (6) at the wing-margin are 8-10 (front wings) or 6-8 (hind wings) rows of cells. 17. Between M4 and Cui are (a) three (occasionally four) antenodal cells and (6) at the wing-margin are two to three rows of cells. 19. Between Cm and Cu2 at the wing-margin is only one row of cells. 20. Area posterior to Cu2 with about two rows of cells. 21. Anal vein separating from the hind margin distad to the levels (a) of the arculus, and (6) of the cubito-anal cross-vein, 22. Anal cross-vein as stated above for Philogenia. « There is an anal cross-vein proximal to the level of the distal end of the quadrilateral in the right front and right hind wings of the Queensland male and in the right front and left hind wings of the female. In the other eight wings, the first cross-vein in this part of the wing is at or slightly distal to the vein descending from the distal end of the quadrilateral and therefore should perhaps not be called an anal cross-vein, but a cross-vein posterior to Cu2. It has been marked Cu2a by Mr. Williamson, 1913, p. 260. 244 proceedings of the academy of [may,. Comparison of Chlorolestes (fasciatus) with Phenacolestes. {Ch.fasciatus, 2 cf Natal, 1 cT "Pirie Bush, S. Africa, A. N. Stenning 98-191"; all -S^^ ji^ the British Museum.) These two genera agree in the characters above numl:)ered 5, 6, 7^46 8^9,48 10,49 156, 16, 18,5« and 22. These two genera differ in the characters given below; after each number the difference shown by Chlorolestes is stated. 1. Nodus at four-fifteenths ( =.27) of the wing-length. 2. Only two antenodals.^^ 3. Postnodals on the front wings 22-23, on the hind wings 17-20. 4. Stigma less oblique. 11. Rs separates one to two cells distad to the subnodus, but in all cases nearer to Ms than to M1+2. 12. Between Rs and Ms is one row of cells which may increase to two rows at the extreme margin, symmetrically or asymmetrically. 13. Arculus at the second antenodal. 14. Ms separating from M1+2 at the subnodus. 15a. Between Ms and M4 are no cross-veins proximal to the level of the subnodus, the first cross-vein being very nearly at, but still slightly distal to, the level of the subnodus. 17. Between M4 and Cui are (a) two to three antenodal cells (sensu Selysii) and (6) one row of cells to the wing-margin. 19. Between Cui and Cu2 is one row of cells to the wing-margin. 20. Area posterior to Cu2 with only one row of cells. 21. Anal vein separating from the hind wing-margin at, or slightly distal to, the level of the middle of the lower side of the quadri- lateral, therefore far distad (a) to the level of the arculus and (6) to that of the cubito-anal cross-vein. Various Old World Genera and Phenacolestes. The genus Wahnesia Forster, of New Guinea, has the area posterior to Cu2 fairly well developed, but not to the extent that it is in Phena- colestes, but as this genus differs from Phenacolestes in a number of characters, such as Nos. 2, 9, 11, 13, 14, 21, 22, a more detailed comparison has not been made. ^5 These three males have a brown band for the full width of the wing from the origin of M2 distad to half-way from this point to the proximal end of the stigma. ^ Occasionally increasing to two rows at the extreme margin. <^ Each one of the three rows may divide, however, into two rows at the extreme margin. *3 M2 separates from Mi at .28 to .33 of the distance from nodus to stigma. ■'^ At the extreme margin there are 5-7 rows, however; but compare p. 229, antea. 50 The cubito-anal cross-vein is nearer to the level of the first than to that of the second antenodal. 5^ One of the Natal males has on the right hind wing an additional antenodal proximal to the normal first and confined to the costal area. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 245 None of the following Old World genera seem to offer any close approximations to Phenacolestes and therefore have not been studied further in this connection: Neurolestes Selys, Nesolestes Selys, Podolestes Selys and Synlestes Selys. It may be notecl, however, that in Neurolestes trinervis Selys, from Old Calabar, the three antenodals are so arranged that the arculus is at the third antenodal on all four wings. General Discussion of the Value of the Venational Charac- ters COMPARED IN THE PRECEDING GeNERA FOR THE Determination of Relationships. Many of the ideas which have been expressed on the changes which have taken place in the venation of Odonate wings liave been based on the comparative morphology of living representatives of the order or on considerations of mechanical advantage. It does not follow that these foundations are trustworthy or that there has always been mechanical improvement in the wings. Degeneration is just as probable as progressive development. The actual course of phylogeny cannot be deduced from these considerations or from the data of morphology. It seems therefore desirable to attempt to ascertain what paleontological evidence exists affording clues to the descent of these insects, by tracing the modifications which the wings exhibit from the Carboniferous period down to the present time. The characters of Phenacolestes and other genera which have been compared in the preceding pages under the numbers 1 to 22 may for the most part be arranged into two groups: A. Those characters which are concerned with the positions of the points of separation of longitudinal veins and the positions and number of certain cross-veins. B. Those characters which are concerned with the number of rows of cells existing between the longitudinal veins and their branches. Group A includes numbers 1, 2, 3, 4, 9, 11, 13, 14, 15r/, 16, 17a, 18, 21, and 22. 1. The Position of the Nodus. — The Protodonata of the Carbonifer- ous and the Permian possessed no nodus ; their subcosta (whose apex in the Odonata usually coincides with the nodus) reached often beyond mid-length of the wing, its minimal extent being to four-tenths of the wing-length in Meganeurula (Handlirsch'^'-). The earliest of 52 Foss. Ins., p. 309, Taf. XXXI, figs. 37, 38. 246 PROCEEDINGS OF THE ACADEMY OF [May, the known Odonata, from the Lias, have been segregated by Hand- lirsch as a suborder, distinct from the existing Zygoptera and Anisop- tera, under the name Anisozygoptera.^^ These insects usually possessed a nodus which lay at about mid-length of the wing. Hand- lirsch considers^'* that, of the recent forms, the Gomphidse and Calopterygidse have unquestionably the closest relations to the Anisozygoptera and are probably direct descendants thereof. The Agrioninae of Selys have usually been looked on as descendants of Calopterygid(or -gine)-like forms." The position of the nodus in Calopteryginae and in Agrioninae, respectively, has been stated as follows : "The position of the nodus varies in both the Calopteryginae and the Agrioninae, but in general it is farther from the base of the wing in the former than in the latter. Among the first-named it is probably nearest the haae (one-third the wing-length) in Amphipteryx and in Chalcopteryx,^^ among the second group it is farthest from the base (more than one-third the wing-length) in Archilestes. No Calop- teryginae have the nodus as near to the base as one-fifth the wing- length, but many Agrioninae have it in that position."" This statement was based on conditions existing in recent forms. Very little is known of fossil Zygoptera of periods earlier than the Eocene"^ when Dysagrion and fragments named Podagrion abortivum by Scudder appear. From the Jurassic, Handlirsch lists^^ Euphceoj)sis multinervis Hagen, in fair preservation, and four possible but inde- ciphera]:)le species of Pseudoeuphcea, all considered to be allied to the living Epallage, Euphcea, etc., i.e., Calopteryginae of Selys. Euphce- opsis multinervis had the nodus at .44 of the wing-length. Another fossil of the same age is Steleopteron deichmulleri placed by Handlirsch in a separate family Steleopteridae, which is considered to possess " L.c, p. 463, August, 1906. 5* L.c, p. 464. s5 Calvert, Trans. Amer. Ent. Soc, XX, pp. 211, 212, 1893; Ris, Zool. Jahrb., Abth. Syst. Geog. Biol. Thiere, IX, p. 623, 1896. Cf. Needham, Genealogic Study, pp. 742, 748, 750, 1903; Handlirsch, Foss. Ins., p. 472, 1906; Tillvard, Proc. Linn. Soc. N. S. Wales, XXXVI, p. 600, 1912; XXXVII, p. 406, 1913. 58 In Chalcopteryx the nodus is at .37 (front wing) or .39 (hind wing) of the wing-length. 57 Calvert, Ent. Mo. Mag., (2), XIII, p. 31, 1902. 58 Osborn, The Age of Mammals, 1910, p. 42, places the Green River shales in which these genera occur as equivalent to the Upper Ypresian, i.e.. Middle Eocene. 59 Fossile Insekten, pp. 595 et seq. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 247 both Epallagid (Calopterygine) and Agrionine affinities. It had the nodus at only three-tenths of the wing-length.*' No Cretaceous Zygoptera are listed by Handlirsch. No ontogenetic data showing a proximal shifting in position of the nodus in any Zygopteron seem to have been published. If the evidence that may be drawn from the hypothetical descent of Agrioninae (Selys) from Calopteryginse (Selys) be left out of con- sideration, there yet appears to be good paleontological support, as sketched above, for the statement of Needham^^ that shortening of the subcosta and retraction of the nodus toward the base of the wing is a developmental tendency away from the generalized con- dition of a long subcosta and a nodus remote from the wing-base. Yet it must be pointed that an upper Liassic fossil is known in which the subcosta ends at only .15 of the wing-length. This is Protomyrmeleon hrunonis Geinitz, for which Handlirsch has erected the suborder Archi-Zygoptera and which he even suggests^^ may have been a connecting link between the Protodonata and the Agrionidse ( = Agrioninae Selys) . Should such an ancestry for the latter group ever be demonstrated, the retraction of the nodus in living Odonata could not have the same significance, as a sign of specialization, which Needham has given it. The alternative suggestion of Handlirsch, that Protomyrmeleon is simply an analogue to the Agrionidse (Agri- oninae Selys) whose descendants have become extinct, seems at present the more probable. 2. The Number of Antenodal Cross-veins. — A priori one might expect retraction of the nodus to be accompanied by a decrease in the number of antenodal cross-veins. No such proportional reduction exists, however. The two Calopterygine genera cited on p. 246 anted as having the most retracted nodus in that whole group, Chalcopteryx ^ Still another Jurassic (Eichstadt) fossil is the Agrion eichstdttense of Hagen, listed by Handlirsch as Malmagrion eichstdttense {Foss. Ins., p. 599). Hagen says of it {Paleontographica, X, p. 119, 1862): "Die Fliigel sind 21 mm. lang, sehr schmal .... Der. Nodus liegt 6 mm. von der Basis. Das Geader ist nicht deutlich. " His lithographic figure 5, Taf. XIV, agrees with these propor- tions. Meunier (Ann. Soc. Ent. France, LXV, pi. 3, 1896) has given a figure labelled "Agrion? eichstattense Hagen type." It is photographic and represents an insect lying in the same position as that of Hagen's figure and of the same natural size. From Meunier's figure the position of the nodus cannot be recog- nized. In his text Meunier says, p. 131, "Agrion eichstdttense Hagen. No. 150. Type de cet auteur. Paleontographica, t. x, p. 118 a 119, pi. XIV; Cassel, 1862." I cannot understand his expression a few lines farther in the same paragraph: "Cette echantillon a beaucoup d'analogie avec celui de Hagen." 61 Genealogic Study, p. 730. 62 Foss. Ins., p. 472. 17 248 PROCEEDINGS OF THE ACADEMY OF [May, and Amphipteryx, have respectively 23-26 (front wing), 21-23 (hind wing), and 7-10 (front wing), 7-8 (hind wing) antenodals. The paleontological evidence (with the exception of Protomyrmeleon, which has but one antenodal), including Steleopteron, is favorable to the view that reduction in the number of antenodals is a more recent acquisition. The preceding paper by Mr. Campion^^ discusses in a suggestive way the apparent evidence for such reduction afforded bj' recent Agrioninae. 3. The Number of Postnodal Cross-veins. — Prof. Needham has concluded®^ that one of the developmental tendencies of the Odonata is: "Antenodal and postnodal cross- veins becoming reduced in numljer, stronger, more regular, sometimes matched in position or differentiated among themselves." In the Zygoptera this tendency is more evident in the antenodals than in the postnodals, the latter never becoming so few, absolutely, or relatively to the antenodals, as in certain Anisoptera, e.g., Pachydiplax (front wing: antenodals 6, postnodals 6) or Miathyria simplex (front wing: antenodals 7, post- nodals 5). In the Protodonata, owing to the great extension of the subcosta toward the apex of the wing, although there was no nodus, the potential postnodals were less numerous than the actual antenodals, assuming that the nodus of the Odonata developed at, or but little proximad to, the apex of the subcosta. AVith retraction of the nodus a greater number of postnodals in the costal space became possible. Numerous cases of subsequent reduction in the number doubtless occurred independently of each other, but the paleontological data are not sufficiently abundant to demonstrate progressive reduction in any one line of descent, however likely this may appear from the standpoint of mechanical advantage or of economy of vein-forming material. 4. The Pterostigma. — The stigma is an Odonate feature not pos- sessed by the Protodonata. In those Anisozygoptera, which are considered by Handlirsch®^ to be ancestral to the Calopterygidae, viz., the Tarsophlebiidse, the stigma was fairly oblique and in one species at least braced at its proximal end.^^ In EuphcBopsis, of the Jurassic, the stigma is not oblique; in ^ The Antenodal Reticulation of the Wings of Agrionine Dragonfiies. This volume of these Proceedings, anted, pp. 220-224. ^ Genealogic Study, p. 730. 65 Foss. Ins., p. 468. ^.Tarsophlebia eximiaoi the .Jurassic; Handlirsch, I.e., Taf. XLVII, fig. 1. 1913.] NATURAL SCIENCES OF PHIL.^DELPHIA. 249 Steleopteron, also of the same age, its proximal edge is not as oblique as in Tarsophlebia eximia and unbraced while its distal edge is more oblique. So far as one may judge from Handhrsch's figures" of Liassic Odonata the stigma was not oblique, or but moderately so, and unbraced; the forms in which it is preserved, however, seem to have but little relationship to the insects discussed in this paper. The paleontological evidence, therefore, furnishes little encouragement to use the stigma as a means of determining relationships.^^ It is important to notice, however, from the accompanying Table I, that the position of the stigma in the wing varies iDut little in different genera and species, so that it constitutes a relatively fixed landmark. 9,11. The Points of Separation of M2 from Mi and of Rs from M1+2. — Prof. Needham has noted®^ a minor line of development within the Agrioninae, "in which nodus and quadrangle become more and more approximate, and the veins M2, Rs, and Ms migrate separately along vein Ml from their accustomed places toward the stigma." This migration may be real or apparent. Retraction of the nodus with no change in position of the separation point of M2 would result in a greater interval between nodus and M2 and hence an apparent movement of the latter toward the stigma, but no real movement in respect to the wing as a whole. (Compare Table I, Thaumato- neura, Rhipidolestes and Paraphlebia zoe cf .) Real migration is where the separation-point of M2 is transferred distad considered in relation to the total wing-length, and may or may not be accompanied by a change in the position of the nodus. (Compare Table I, Perilestes and Dysagrion, and Perilestes, Argio- lestes icteromelas 9 and Melanagrion.) These remarks will also apply to characters 11 (the separation-point of Rs, including its bridge where it exists, from M1+2), 14 (the separation-point of M3 from M1+2), 15a (the number of cross-veins proximal to the level of the subnodus between Ms and M4) and 17a (the number of antenodal cells between M 4 and Cui). In the preceding pp. 228-244, the state- ments for these characters have been made with reference, not to the wing-length, but to certain more or less varying landmarks, as the arculus, nodus, or stigma; this course has been in conformity with the established custom of descriptive writers. " L.c, Taf. XLII. ^ Cf. Needham, Genealogic Study, pp. 710 at top and 730 at bottom. «3 L.c, p. 749. 250 PROCEEDINGS OF THE ACADEMY OF [May, Table I. Positions of Certain Wing-details in Decimal Parts of Wiyig-length for Certain Odonata. The measurements have been made from a single wing only in each species (front wing in living species). Genus and Species. (Recent, except where otherwise marked.) Protomyrmeleon brunonis (Lias) Tarsophlebia eximia (Jurassic) Euphseopsis multinervis (Jurassic) Steleopteron deichmiilleri (Jurassic) Dysagrion packardii (Eocene) Phenacolestes mirandus (Miocene) spmn. No. 3 Phenacolestes mirandus (Miocene) spmn. Xo. 5 Thaumatoneura inopinata cf " pellucida c? Melanagrion umbratum (Miocene) Rhipidolestes aculeata c? Argiolestes icteromelas cf 9 Allopodagrion nebulosum cf Lithagrion hyalinum (Miocene) Philogenia carriUica cf 9 " terraba cf Paraphlebia zoe cf " 9 " abrogata cf Dimeragrion percubitale cf Heteragrion tricellulare cf Perilestes fragilis? cf Summary : Maximum Minimum Range .2§[.2§ .15, .45 .87 .44 .30 .39 .87 .83 .33 .34 .18 .18 .29 .83 ,29 .93 .30 .28! -89 .29 .90 .34 .88 .23 .91 .24 .90 .25! .91 .19 .93 .19 .95 .20 .92 .25 .81 .23 .91 .28 .88 <^ ^--^''=*-,' '■^ g S .48; .21 (None)! 71.53 .47 .38! .14 .33 .15 .52 CO o* 5 : o S c a ,2:s Is ^ 2 13 .29 .18 .14; .26 .08 .17 .08! .16 .16 .25 .18 .25 .171 -28 .16 .28 .181 .27; .20: .28! .16 .23 .16 .24 .16 .23 .12 .20 .13 .20 .14 .22 .16 .25 .16 .25 .21 .36 .49 .21 .36 .19 .08 .15 .30 .13 .21 .02 .08 .15 .13 .lO! .23 .15 .16 .15 .30 .17 .07 .10 .11 .06 .06 .15 .20 .18 .18 .16 .20 .12 .12 .27 .22 .22 .21 .21 .24 .23 .20 .18 .21 .20 .20 .19 .19 .17 .19 .18 .22, .21 .19 .18 .20 .15 .25 ^2 ™ The number in parenthesis at the top of each vertical column is that under which that character has been treated throughout this paper, ^1 In Protomyrmeleon brunonis Ms separates from Rs. " A not developed as a vein separate from the hind margin. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 251 The paleontological evidence with reference to the separation- points of iVIi, Rs and AI3 is that the Liassic fossils (with the exception of Protomyrmekon) had M2 separating at the subnodus, and Rs (including its bridge) and Ms proximad to the nodus;" none of these fossils which have the nodal region preserved are considered by Handlirsch to be ancestral to Zygoptera, however. For many of the Jurassic remains^^ the same statement as to the positions of these separation-points holds true, including Tarsophlehia eximia and EuphcEopsis multinervis; Steleopteron had Rs and Ms arising well proximad to the nodus, M2 only a short distance distad to the nodus; Palceophlebia synlestoides, which Brauer, Redtenbacher and Gangl- bauer assigned to the legion Podagrion of Selys^^ but which Hand- lirsch regards as an Anisozygopter of doubtful position,'^^ is imperfectly preserved, but seems to have had the origins of both Rs and M2 distinctly distal to the nodus, while that of Ms was probabh' proximal to the nodus. Paleophlebia came from the Dogger, or lower Jurassic, of Siberia, and is therefore older than the other Jurassic fossils just referred to, all of which are Malm or Upper Jura. The paleontological evidence is consequently not altogether satisfactory and at least admits of the possibility of the separation-points of these three veins having fluctuated proximad or distad from time to time. Prof. Needham's statement as to their migration, quoted above, has not that evidence from other sources than comparative morphology which is necessary to enable us to use these characters with perfect confidence. 13. The position of the arculus has been relatively stable, so that there is little reason for attaching any special phylogenetic value to it. 14. The Point of Separation of il/s frotn M1+2. — (See the discussion above under Nos. 9, 11.) 15a. The Number of Cross-veins, Proximal to the Level of the Sub- nodus, between Ms and Mi. — This character is closely dependent on No. 14, for the more proximal is the separation-point of Ms from Mi+2, the greater is the area available for these cross-veins. In the genera here compared the greatest number of cross-veins, two, is found in Phenacolestes, Lithagrion, and Melanagrion, all of which have a more proximal origin of Ms. The reverse case is not necessarily true, as Philogenia, Allopodagrion, and Dysagrion, with an equally proximal 73 Handlirsch, Foss. Ins., Taf. XLII. ^1 L.c, Taf. XLVII. 75 Mem. Acad. Imp. Sci. St. Petersb., (7), XXXVI, p. 6, 1889. '« Foss. Ins., p. 584. 252 PROCEEDINGS OF THE ACADEMY OF [May, origin of Ms (see Table I), have but one such cross-vein. Tarsophlehia eximia had five in its hind wing (these veins are not preserved in the front wing) and Steleopteron had two. 16. The Obliquity of the Quadrilateral. — The shape of the quadri- lateral becomes more oblique with the greater divergence of its proximal and distal sides. Prof. Neeclham has assumed" that a nearly rectangular quadrilateral, in which opposite sides are parallel to each other, is the more primitive form and that from it at least two kinds of oblique quadrilaterals have arisen. There seems to be no published ontogenetic evidence in favor of this view and the only paleontological evidence not contradicting it is limited to that puzzling Liassic form, Protomyrmeleon, in which, if Handlirsch's interpretation of the venation be correct,^^ R and M are still distinct from the base distad, and there is no trace of a beginning arculus. On the other hand, all the Jurassic fossils, which are not clearly Anisoptera, show an oblique quadrilateral with its posterior distal angle acute.'^* This holds true not only for those fossils referred by Handlirsch to the Zj^goptera like Euphceopsis and Steleopteron, or for forms regarded by him as ancestral to Zygoptera, as Tarsophlebia (and including a Liassic fragment, T. westwoodi^) , but also for other Anisozygoptera not apparently forefathers of the Zygoptera, as Stenophlebia, Isophlebia, and Anisophlebia . Dysagrion of the Eocene had an oblique quadrilateral, and in fact not one of the published descriptions and figures of Tertiary Zygoptera listed byHandlirsch^^ shows a rectangular quadrilateral; all havje it oblique. It therefore seems necessary to regard the oblique quadrilateral as the more primitive and the rectangular as a later appearance. ''' Genealogic Study, p. 717, fig. 11, p. 731. See also Williamson, 1913, p. 2.59, and figs. 1 and 2 on p. 260. 'sFoss. /«s., Taf. XLII, fig. 14. '^L.c, Taf. XLVII. Hagen, indeed (Paleontographica, X, Taf. VIII, f. 8), shows the quadrilateral of the Jurassic Euphcea longiventris as rectangular. In his description, p. 128, he says, "Noch undeutlicher ist der tibrige Theil des Geaders .... das Viereck ist gleichfalls undeutlich," and he gives no details of its shape. Meunier's photographic reproductions (Arch. Mus. Teyler, 2, VI, pi. XXVI, figs. 81, 82, cf. p. 127), not of Hagen's tj-pe, but of other specimens in the Munich Museum, show the shape of the quadrilateral as indecipherable. Handlirsch (Fossil Ins., p. 580) places Euphcea longiventris Hagen as a synonym of Tarsophlehia eximia Hagen and remarks, "Bezuglich Hagens Euphtea longi- nentris [longiventris] habe ich zu bemerken, dass der von ihm 1. 13 f. 8 abgebildete Flugel allerdings von jenem der Tarsophlebien wesentlich abweicht. Aus der Beschreibung ergibt sich jedoch, dass die basale Partie des Flugels an dem Fossile kaum zu entziffern ist, so dass wir diese Reconstrucktion als werthlos betrachten konnen." 8» Pass. Ins., Taf. XLII, fig. 6. 81 L.c, pp. 896-899, 1357. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 253 17a. The Number of Antenodal Cells between Mi and Cm. — This character is in general dependent on the degree of retraction of the nodus, as the more the nodus approaches the base of the wing the smaller is the area available for these cells. This correlation, although not absolute and exact in the genera here compared, holds in a rough way. We may therefore regard reduction in the number of antenodal cells as a specialization. There appear to have been 12 on the front wing, 13 on the hind wing of Tarsophlebia eximia (counting only a single row — there are two rows in part of this area) , almost three in Steleopteron. A reduction in the number of antenodal cells may occur independently of retraction of the nodus, however, by the greater development of the quadrilateral distad. (Compare Table I, Thaumatoneura and Paraphlebia, also pp. 233, 237 anted.) ■ 18. The Number of Cubito-anal Cross-veins. — These veins are usually small and weak in the Zygoptera, and they have not been preserved well in the fossils, so that few data on their development in point of geologic time are available. Perhaps the same kind of evidence which Mr. Campion has secured^^ fQj. ^jie reduction of the antenodals might be obtained for these cross-veins also. It is conceivable that the ancestral Zygopteron might have had a moderate number and that some of its descendants might have acquired more, others fewer. While recognizing the paucity of evidence, I am inclined to view reduction in their number as specialization, in harmony with the reduction of antenodals. 21. Petiolation of the Wing. — When the anal vein (A) separates from the hind margin of the wing at some distance from the base, a stalk-like appearance of the wing-base is produced, especially on the hind margin, to which the term "petiolee" was long ago applied by de Selys. Petiolation involves a reduction of the anal area and is specifically mentioned by Prof. Needham^ as a fundamental develop- mental tendency in the Agrionidse ( = Agrionin£e Selys). It is not visible m Protomyrmeleon (Lias); in Tarsophlebia, Stenophlebia , Isophlebia, or Anisophlebia (Jura). It seems to have been well- marked in Steleopteron, while the shape of the wing-outline certainly suggests it in Euphceopsis, although here A may have remained dis- tinct from the hind margin.^* It seems justifiable to assume that the farther distad petiolation has progressed, the more specialized the insect. 82 These Proceedings, p. 223, antea. « Genealogic Study, p. 748. Cf. Ris, 1912, p. 45; Tillyard, 1913, p. 444. «* Handlii-sch, Foss. Ins., Taf. XLVII. 254 PROCEEDINGS OF THE ACADEMY OF [May, 22. The Number of Anal Cross-veins. — Progressive petiolation reduces the area available for anal cross-veins, but not always to the extent one might expect. Thus of American genera discussed in this paper which have the petiolation extending distad to the arculus, Paraphlehia has 2, PhUogenia 0, Dimeragrion 1 or 0, Lithagrion 0 anal cross-veins. Calopteryginae (Selys) have on the whole more anal cross-veins than do the Agrioninse Selys. If the latter are descendants of some of the former and if Tarsophlehia stands in an ancestral position to the Zygoptera, then we may consider reduc- tion in number of the anal cross-veins as a specialization. Proto- myrmeleon, Tarsophlehia, Isophlebia, and Anisophlebia each had not less than four anal cross-veins, some of them many more. In Euphceopsis they are not preserved, in Steleopteron they appear to have been present only distad to the level of the outer (distal) end of the quadrilateral. B. The characters included under group B on p. 245, ajited, are Nos. 7, 8, 10, 12, 156, 176, 19, and 20. In the comparisons made in the early pages of this paper, these characters have been stated in terms of numbers of rows of cells found between the branches of the great veins. They may be stated also by specifying the number of interposed, or supplementary, sectors in each area, and have usually been so stated in the taxonomic literature. It is easy to translate one method of statement into the other, as one row of cells implies no supplementary sector, two rows of cells one supplementary sector, three rows two sectors, etc. The individual variation to which they are subject increases as the hind margin of the wing is approached. The Protodonate wing of the Carboniferous and the Permian was richly veined with many supplementary sectors. So also were the Odonate wdngs of the Lias, excepting Protomyrmeleon; if Handlirsch's interpretation of its venation be correct,*^ there was but one row of cells between each of the branches of the main veins, except between Rs and Ms (two rows increasing to three), Ms and M4 (two rows), M4 and Cui (two rows), and posterior to A (two rows). Turning to the Odonata of the Jura,*" we find richly veined wings in the Anisozygoptera {Tarsophlehia, Stenophlebia, Isophlebia, Anisophlebia), and in Euphceopsis; Steleopteron has one row of cells between Mi and Mio, Mio and M2, M2 and Rs, INIs and M4, and be- tween the veins posterior to Cui, three rows between Rs and Ms, two rows between M* and Cui. 85 Foss. Ins., Taf. XLII, fig. 14. 8« Handlirsch, Foss. Ins., Taf. XLVII. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 255 If Handlirsch be correct in his conjecture^^ that the Protodonata have descended from such genera of the Dictyoneuridse (Palseodic- tyoptera) as Stenodictya, the dense venation of the former evolved from the equally dense, but more irregular, network of the latter. The Odonata then carried reduction in the network to a greater degree than in the Protodonata and reduction in the rows of cells of the areas now under discussion would, therefore; be a specializa- tion. We must then recognize that as ^arly as the Lias such reduc- tion was carried in Protomyrmeleon to a greater degree than is shown by many living genera and a similar statement must be made for Steleopteron of the Jura. That any of these reduced venations were capable of giving rise to more exuberantly veined descendants would be denied by many phylogenists, but the actual proof of such a denial is not at hand for the Odonata. We have, therefore, only the general tendency to guide us when we assume that reduction in density of venation in the characters of group B means specialization. On the other hand, we must suppose that such richly veined forms of the present day as Thaumatoneura, Calopterijx, Thorc, and Neuro- themis have either preserved the dense venation of, perhaps Mesozoic, ancestors or that they have acquired their density by hypertrophy in the course of generations.*^ Here, as elsewhere in this discussion, the possibility of further light from ontogenetic studies is very evident. Summarizing the results of this discussion, we conclude that later phylogenetic status is denoted by the following conditions in the characters of the genera compared in this paper : 1. Retraction of the nodus toward the wing-base. 2. Reduction in the number of antenodals. (3. Reduction in the number of postnodals.) (7. Reduction in the number of rows of cells l^etween ]\Ii and Mia.) (8. Reduction in the number of rows of cells between Mm and M2.) 9. More distal position of origin of M2. (10. Reduction in the number of rows of cells between M2 and Rs.) 11. More distal position of origin of Rs. (12. Reduction in the number of rows of cells between Rs and Ms.) 14. More distal position of origin of Ms. 15a. Reduction in number of cross-veins proximal to the subnodus between Ms and M4. 8' L.c, p. 305. 88 The latter alternative is apparently that held by Dr. Ris for the analogous cases of Pantala and Tramea. 1912, p. 46. 256 PROCEEDINGS OF THE ACADEMY OF [Maj', (156. Reduction in the number of rows of cells between Ms and M4.) 16. Rectangular quadrilateral. 17a. Reduction in the number of antenodal cells between M4 and Cui. (176. Reduction in the number of rows of cells between Mi and Cui.) (18. Reduction in the number of cubito-anal cross-veins.) (19. Reduction in the number of rows of cells between Cui and Cu2.) (20. Reduction in the number of rows of cells posterior to Cu2.) 21. More distal petiolation of the wing. (22. Reduction in the number of anal cross-veins.) I have endeavored to indicate that the paleontological evidence is not as strong for some of these statements, by enclosing them in parentheses, as for those left unenclosed. There is no ontogenetic evidence as yet. These conclusions and the data on which they are based merely permit us to determine the probable course, or direction, of change in certain features of the venation. They do not enable us to decide as to the relative order in which the different features changed, whether, for example in the ancestors of living Podagrionine genera, Ms assumed a position at or distad to the subnodus at an earlier, or at a later, period than the reduction of the number of rows of cells in the area posterior to Cu2 occurred, although, given a character, we can say which genera should come first and which should follow in our phylogenetic list in respect to the modifications of that charac- ter. In the imperfection of our knowledge, we are largely guided, therefore, by motives of convenience in selecting the primary charac- ters on which a classification of the members of this group is to be based. .Having regard to all these considerations, the following scheme for a phylogenetic grouping of the genera of Selys' legion Podagrion is presented. Synopsis of Venational Characters of Genera of the Legion Podagrion. Legion Podagrion Selys 1862. IMs separating from M1+2 nearer to the nodus than to the arculus. Pterostigma normal, i.e., consisting of but a single cell. Cu2 present. Supplementarj' f^ectors present, at least between Mia and M2, except in Perilestes. A. — Ms separating from M1+2 proximad to the subnodus, at six- tenths or more of the distance from arculus to subnodus (half-way in Rhipidolestes) . 1913.] NATURAL SCIENCES OF PHILADELPHIA. 257 B. — Antenodals more than two on all the A\-ings, or on the hind wings only (Neuragrion). (See also the parenthesis following rubric BB.) C. — Area posterior to Cu2 with three or more rows of cells, A separating from the hind margin proximad to the level of the arculus, Rs l^eginning at the subnodus. D. — Quadrilateral oblique at distal end. E. — Supplementary sectors between M* and Cui absent; between :\Iio and :\I2 five, between Rs and Ma eight rows of cells, respectively Dysagrion Scudder, 1878 (Eocene, Wyoming). EE.— Supplementary sectors between M4 and Cui three or four; between Mia and M2 three, between Rs and Ms three rows of cells respectively Phenacolestes Cockerell, 1906 (Miocene, Colorado). DD. — Quadrilateral almost rectangular at both proximal and distal ends; many supplementary sectors from Mi to hind margin Thaumatoneura :\I'Lachlan, 1897 (Central America). €C.— Area posterior to Cu2 with only one row of cells, A separating from hind margin at or distad to the level of the arculus. F. — Us beginning at subnodus, supplementary sectors from Mia to ]\l4, two or more cubito-anal cross-veins Neurolestes Selys, 1882 (West Africa). FF.— Rs beginning distad to the subnodus, supplementary sectors from Mia to Ma, one cubito-anal cross-vein Neuragrion Karsch, 1891 (Ecuador). BB. — Antenodals two only (more than two have been noted in occasional specimens of Podopteryx, a genus included under this rubric). G. — Rs beginning proximad to the subnodus. H. — Area posterior to Cu2 with two rows of cells, A separating from the hind margin proximad to the level of the arculus, supplementary sectors from Mia to M4 Melanagrion Cockerell, 1907 (Miocene, Colorado). HH.— Area posterior to Cu2 with one row of cells, A separating from hind margin distad to the level of the arculus, supplementarv sectors from Mia to Cu2 Rhipidolestes Ris, 1912 (Formosa). GG. — Rs beginning at the subnodus. J.— Area posterior to Cu2 with 4-5 rows of cells, A separating from the hmd margin at or distad to the level of the arculus, supplementary sectors from Mia to Cui Podopteryx Selj's, 1871 (Aru, Queensland). JJ. — Area posterior to Cu2 with 2 rows of cells, otherwise as in Podopteryx Argiolestes Selys, 1862, sens, strict.^^ (Australian region). 89 As here limited includes only the groups IC and 2 of Selys' Revision of 1886, p. 81. See the remarks of Martin on the variability of the points of departure of Ms and R^ in Argiolestes, Boll. Soc. Ent. Ital, Ix, p. 201, 1909. 258 PROCEEDINGS OF THE ACADEMY OF [May,^ JJJ. — Area posterior to Cu2 with one row of cells. K.— Old World Genera.9« L. — A separating from the hind margin proximad to the level of the arculus (some Podolestes fall here — see below under 00). M. — Supplementary sectors from Mi to Ms and between M4 and Cu2, none between Ms and M4 Rhinagrion nom. n. for Amphilestes Selys, 1862^1 (Malaysia). MM. — Supplementary sectors (two each) from Mio to Rs, one between Ms and M4 Mesopodagrion McLachlan, 1896 (Thibet, West China). LL. — A separating from the hind margin distad to the level of the arculus. N. — Quadrilateral with its anterior side more than half as long as its posterior side, Cui only slightly arched forward on leaving the quadrilateral. O. — Arculus distinctly distal to the second antenodal, supplementary sectors (two each) from Mia to M4 Nesolestes Selys, 1891 (Madagascar). 00. — Arculus at, or but slightly distal to, the second antenodal, supplementary sectors (one or two each) from Mm to M4 Podolestes Selys, 1862 (Labuan, Sumatra). NN. — Quadrilateral with its anterior side half, or less than half, as long as the posterior side; Cm strongly arched forward on leaving the quadri- lateral, supplementary sectors (one each) from Ml or Mia to Rs or Ms Synlestes Selys, 1869 (Australia). KK. — New World Genera. P. — A separating from the hind margin proximad to the level of the arculus, .supplementary sectors from Mia to Rs and between Ms and M4. Q. — Area Mia to M2 with three I'ows of cells, two unbroken supplementary sectors between M2 and Rs Megapodagrion Selys, 1885, sens, strict. (Brazil). QQ. — Area Mia to M2 with two rows of cells, one zigzag supplementary sector between M2 and Rs Allopodagrion Foerster, 1910 (Northern South America). 3" Although the first two subdivisions, K and KK, under rubric JJJ are geo- graphical, not structural, for convenience' sake, the structural features under K and KK are sufficiently detailed to enable the identification of a form of unknown habitat to be made. 81 The name Amphilestes Selys is preoccupied by Amphilestes Owen (Encyc. Brit., 8th edit., XVII, p. 157, 1859) for a fossil mammal. Rhinagrion is suggested by de Selys' emphasis of one of the characters of his Amphilestes as " Tete robuste, k ^pistome saillant." .1913.] NATURAL SCIENCES OF PHILADELPHIA. 259 PP. — A separating from the hind margin distad to the level of the arculus. R,_Nodus more nearly at one-third of the wing- length, no supplementary sectors between Rs and Ms Lithagrion Scudder, 1882 (Miocene, Colorado). I^I^__Nodus more nearly at one-fourth of the wing- length, at least two supplementary sectors l^etween Rs and Ms. (Supplementary sectors from Mia to M4 or Cui) Philogenia Selys, 1862, except P. terraha Calv. (Costa Rica to Brazil). <;;GG.— Rs beginning distad to the subnodus, A separating from the hind margin distad to the level of the arculus. g_ — Area posterior to Cu2 with usually two or more rows of cells, supplementary sectors from Ml to Cu2 or to hind margin, two cubito-anal cross-veins, the second under the quadrilateral Paraphlehia hyalina Brauer, 1871 (Mexico). gg^_Area posterior to Cu2 with one row of cells, no supplementary sectors posterior to M4. T — Supplementary sectors from Mia to M4, one cubito-anal cross-vein. Xj._Antenodal cells between M4 and Cui two or three (otherwise as above under RR) Philogenia terraha^^ Calvert, 1907 (Costa Rica). UU.— Antenodal cells between M4 and Cui one; quadrilateral very long, reaching to the level of the nodus AUolestes Selys, 1869 (Seychelles). TT. — Supplementary sectors from Mia to Ms (often none between M2 and Rs), usually more than one cubito-anal cross-vein^ Dimeragrion new genus (Guiana) .^^ 'P'P'p^ — Supplementary sectors between M2 and R« and (two long ones) between Rs and Ms, one cubito-anal cross-vein Heteropodagrion Selys, 1885 (Ecuador). 32 In spite of the fact that Philogenia terraba faUs here, instead of under RR with the rest of the genus Philogenia, the only difference which separates it is the slight one of the more distal position of the separation-point of Rs from Mi +2, and I think this does not entitle terraba to a different generic name. 9' The genus Ncitragrion Karsch was described from a single female and has been placed under rubric FF above. If additional specimens should prove to have only two antenodals, the genus would fall under TT and would differ from Dimeragrion presumably, at least, in possessing only one cubito-anal cross-vem. 260 PROCEEDINGS OF THE ACADEMY OF [May, TTTT. — Supplementary sector one between ^Iia and M2, one cubito-anal cross-vein, quadri- lateral not reaching the level of the nodus Protolestes Foerster, 1899 (Madagascar). AA. — Ma separating from M1+2 at the subnodus, only two antenodals^ Rs beginning distad to subnodus. Y. — Area posterior to Cu2 with usually two or more^* rows of cells, A separating from the hind margin distad to the level of the arculus. W. — Supplementary sectors from Mi to Cu2 or to hind margin; two cubito-anal cross-veins, the second under the Cjuadri- lateral Paraphlebia Hagen, 1861 (Mexico, Guatemala). WW.- — Supplementary sectors from Mia to Cui or to hind margin,' one cubito-anal cross-vein Wahnesia Foerster, 1900 (New Guinea)^* VV.— Area posterior to Cu2 with one row of cells, one cubito-anal cross-vein. X. — Supplementary sectors from Mio to M4, A separating from hind margin at or distad to arculus ' Chlorolestes Selys, 1862 (South Africa). XX. — Supplementary sectors confined to area Mia to M2, A separating from hind margin proximad to, at, or distad to^ the level of the arculus Heteragrion Selys, 1862 (Mexico to Argentina) .^^ AAA. — Ms separating from M1+2 distad to the subnodus, only two antenodals, Rs beginning distad to the subnodus, A separating from the hind margin distad to the level of the arculus (or not developed as separate from the hind margin in Perilesfes). Y. — xVrea posterior to Cu2 with two or three rows of cells. Z. — Supplementary sectors from Mi to Cu2 or to hind margin, other charac- ters as above under W Paraphlebia (see W). 9* Both sexes of Paraphlebia duodecima Calv. have only one row of cells posterior to Cu2 on the hind wings, but two or more rows on the front wings. 95 This is group IB of Argiolestes in Selys' Revision of 1886, p. 81. 56 In his Synopsis of 1862, p. 31, de Selys suggested the separation of H. petiola- hini as a separate subgenus under the name of Oxystigma, chiefly distinguished from Heteragrion by the long quadrilateral reaching almost to the level of the nodus, the pterostigma extremely, pointed proximally and only one antenodal cell (between Mi and Cui), but he did not adopt this suggestion in his Revision, of 1886. The name Qxysligma does not appear in Kirby's Catalogue. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 261 ZZ. — Supplementary sectors from Mia to Cui Meiacjrion n. gen.^^ (New Guinea). YY. — Area posterior to Cu2 with one row of cells, no supplementary sector pos- terior to M3. a. — Quadrilateral not touching the hind margin of the wing, supplementary sectors between ^Mia and ]M2 and between Rs and AIs Mesagrion Selys, 1885 (Colombia). aa. — Quadrilateral touching the hind margin of the wing, no supple- mentary sectors except a rudiment between ]\I2 and Rs or between Rs and Ma, arculus well distal to the second antenodal Perilestes Belys, 1862 (Costa Rica, Guiana, Brazil). In view of the olDservations on the imperfection of our knowledge, made on p. 256, in introducing the preceding Synopsis, it seems useful to offer also this Outline of an Alternative Grouping of the Genera of the Legion Podagrion. A. — Area posterior to Cu2 with more than one row of cells. B. — A separating from the hind margin proximad to the level of the arculus, Ms separating from Mi-r2 proximad to the subnodus. C. — Rs beginning proximad to the subnodus, two antenodals, supplementary sectors Mia to M4, two rows of cells posterior to Cu2 Melanagrion. CC. — Rs beginning at the subnodus, more than two ante- nodals Dysagrion, Phenacokstes, Thatimatoneura. BB. — A separating from the hind margin at, or distad to, the level of the arculus, normally two antenodals. D. — Ms separating from Mi+o proximad to the subnodus. E. — Rs beginning at the sulinodus . Podopterijx,Argiolestes. EE. — Rs beginning distad to the subnodus Paraphlebia hyalina. DD. — Ms separating from M1+2 at, or distad to, the level of the subnodus Paraphlebia, Wahnesia, Metagrion. AA. — Area posterior to Cu2 with onlj- one row of cells. F. — A separating from the hind margin proximad to the level of the arculus. 3^ Type: Argiolestes postnodalis Selys. This genus is group lA of Selys' Revision of 1886, p. 81. 262 PROCEEDINGS OF THE ACADEMY OF [May, G. — Ms separating from M1+2 proximad to the subnodus, Rs at the subnodus Rhinagrion, Mesopodagrion, Megapodagrion, Allopodagrion, Podolestes. GG. — Ms separating from Mi +2 at the subnodus, R« distad to the subnodus Heteragrion. FF. — A separating from the hind margin at, or distad to, the level of the arculus (or not developed as a vein distinct from the hind margin in Perilestes). H. — Ms separating from M1+2 proximad to the subnodus. J. — Rs beginning proximad to subnodus Rhipidolestes. JJ. — Rs beginning at the subnodus Neurolestes (3 antenodals), Lithagrion, Philogenia, Nesolestes, Podolestes, Synlestes. JJJ. — Rs beginning distad to the subnodus Neuragrion (3 antenodals on hind wings), Philogenia terraha, Allolestes, Dimeragrion, Heteropodagrion, Protolestes. HH. — Ms separating from M1+2 at the subnodus Chlorolestes, Heteragrion. HHH. — Ms separating from M1+2 distad to the subnodus Mesagrion, Perilestes. The preceding Synopsis, pp. 256-261, will enable one using this Alternative Grouping to distinguish from each other the genera listed under each final rubric. A comparison of Synopsis and Alternative Grouping will show that, in spite of a number of differences in the order in which the genera appear in the two schemes, both begin with and both end with nearly the same forms, which may therefore be regarded as, respectively, the oldest and the youngest members, phylogenetically, of the legion Podagrion. The Relationships of Phenacolestes. // the conclusions reached on pp. 255-256 he correct, Dysagrion of the Eocene of Wyoming, the oldest member of the legion Podagrion now known, cannot have been an ancestor of any of the three known Miocene genera from Colorado, Phenacolestes, Lithagrion, and Melanagrion, because it lacked supplementary sectors between Mi and Cui. Melanagrion indeed possesses one more primitive feature than is found in any of the other three of these extinct genera, viz., Rs begins proximad to the subnodus. Phenacolestes has preserved more primitive characters than has 1913.] NATURAL SCIENCES OF PHILADELPHIA. 263 its contemporary Lithagrion, as may be seen bj- a comparison of those numbered 2, (4?), 12, 156, 17a and h, 19, 20, 21a and h, and 22, on pp. 227 and 232, anted. Phenacolestes is more primitive than its contemporary Melanagrion in characters Nos. 1, 2, 12, 156, 17a and 6, 19, 20, 216 and 22, but less primitive in characters Nos. 3, (4?), and 11. See pp. 227 and 231, anted. Phenacolestes may have been the ancestor of the New World genera Megapodagrion, Allopodagrion, and PerUestes and of the African Chlorolestes, unless it shall be shown that the less oblique pterostigma possessed by all four of these living genera cannot have been acquired from the form which existed in Phenacolestes. Of these four, Mega- podagrion is most like Phenacolestes. But Megapodagrion and the other three genera may equally well have descended from Melana- grion, with which they agree more closely in the shape of the ptero- stigma, although Melanagrion is figured as having no anal cross-veins, a not very weighty objection in this connection. Phenacolestes might be considered ancestral to Heteropodagrion and Heteragrion, were it not that these two have, in at least some species, a greater number of postnodals. Phenacolestes was apparently- not the ancestor of: Neuragrion, which has more postnodals, and the cubito-anal cross- vein in a different position, i.e., proximal to the level of the first antenodal ; Mesagrion, for the second reason just given for Neuragrion; Thaumatoneura, Paraphlehia, or Dimeragrion, which have more than one cubito-anal cross-vein and denser venation in the wing generally {Thaumatoneura), or between Cui and Cu2 {Paraphlehia), or as shown in the greater numbers of postnodals (all three) ; Philogenia, which has more postnodals and rather denser venation between Mia and M2; Rhipidolestes, which has Ms separating from M1+2 more proximad, Rs beginning proximad to subnodus, and more postnodals; Podopterijx, which has a denser venation between Ma and M4 and posterior to Cu2, and more postnodals; Argiolestes, which has a denser venation between Ms and M4. Comparisons with genera of the Old World having more reduced venations are useless, as the equally possible descent from other extinct genera than Phenacolestes arises again. Whether Megapodagrion and its near ally Allopodagrion are to be looked on as descendants of Phenacolestes or of Melanagrion, 18 264* PROCEEDINGS OF THE ACADEMY OF [May, it is of interest to point out that they are not in their present geo- graphical distribution the nearest Podagrionine genera to Colorado, as none of their species are known from a more northern locality than Colombia ("Bogota")- In the intervening territory are found Thaumatoneura, Paraphlehia, Philogenia, Heteragrion, and Perilestes, and of these four genera the most northern known representatives are Paraphlebia zoe and hyalina and Heteragrion chrysops of the State of Vera Cruz, Mexico.^* Professor Cockerell has suggested in correspondence that although the genera allied to Phenacolestes are now Neotropical, they are of northern origin or had northern ancestors. Considering how wide- spread are the living genera of the legion Podagrion, it seems incon- ceivable that their forerunners in the Miocene did not inhabit many other regions than Colorado, The fact that we know them only from Florissant seems to the writer very negative and insufficient evidence on which to found a conjecture as to the place of origin of this group. On THE Subfamily Dysagrionin^ Cockerell. Preceding his original description of Phenacolestes mirandus, Professor Cockerell proposes a new subfamily of Agrionidse {sensu strictiori) , under the name Dysagrioninse, which he defines as follows.^' "Antenodals 2 Subfamily Agrioninae. Antenodals 4 or more Subfamily Dysagrioninse." The number of antenodals is hardly a character of sufficient impor- tance by itself to establish a subfamily, owing to its variability, and at least three genera come between Professor Cockerell's two divisions. Thus in Thaumatoneura M'Lachn., the number of antenodals varies from 3 to 5, and Neurolestes Selys of Africa and Neuragrion Karsch of Ecuador have three antenodals.^*'" It is not without bearing on the present topic that all three of these living genera, as well as Phenacolestes, are of Selys' legion Podagrion, but if any new taxo- nomic arrangement, whether of "subfamilies" or of "legions," is to be made, the distinctive characters must be formulated in some other terms than those which Professor Cockerell has employed. The tenability of the subfamily Dysagrioninse has also been discussed 98 Calvert, Biol. Centr. Amer. Neur., pp. 60, 61, 64, 1901. M Bull. Amer. Mus. Nat. Hist., XXIV, p. 60. «» Cf. Calvert, Ent. Mo. Mag., XXXVIII [2-XIII], pp. 29-32, 1902, where also the characters of the Agrioninae are discussed. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 265 by Mr. Campion in his preceding paper on "The Antenodal Reticu- lation of the wings of Agrionine Dragonflies."^"^ Additional Data on Dimeragrion n. gen. In addition to the venational characters which have been given on pp. 238-239, anted, the following are generic features from other parts of the body: Second antennal joint one and one-half times as long as the first, the third longer than the first two together. Ligula (median labial lobe) bilobed in its distal third, apices tapering but not very acute, separated by an interval whose width is about equal to its depth. Tibial spines longer (often 2-3 times longer) than the intervals separating them, 7-8 in the anterior (outer) row, and 8-9 in the pos- terior (inner) row of the third tibia. The generic name proposed is in allusion to the fact that there are two supplementary sectors onl}^ in two areas of the "vv^ng, viz., those between Mio and M2 and between Rs and Ms. Type, Dimeragrion percubitale n. sp. Dimeragrion percubitale n. sp. PI. XIV, figs. 6-S. Adult cf . — Vertex, genae, and rear of the head black with some metallic green reflection not very brilliant. A yellowish streak between each antenna and the lateral ocellus of the same side. Traces of pruinosity on the rear of the head. Frons, nasus, and upper half of rhinarium dark metallic violet, well-defined from the black above and the pale yellow below, which latter forms a transverse band on the lower half of the rhinarium and basal half of the labrum, this band having almost parallel edges. Distal half of the labrum and the mandibles dark metallic violet. Submentum, mentum, and bases of the maxillse luteous, the distal parts of these two pairs of appendages blackish. Antennae black. Prothorax black with a slight metallic green reflection. Mesepisterna and mesepimera metallic green, low^er part (more than half) of the former and the third fourth (counting from above) of the latter pruinose, or the latter without pruinosity. Metepi- sternum metallic green or metallic violet, a narrow pale (luteous ?) stripe separating this color from that of the mesepimeron, or this pale stripe absent (still older males). Metepimeron and metasternum pale brown or luteous, some pruinosity on the latter. "1 These Proceedings, anted, pp. 220-224. 266 PROCEEDINGS OF THE ACADEMY OF [May, Legs blackish, some pruinosity on coxse, trochanters, and femora. Wings uncolored, the venation described on p. 238. Stigma dark brown, surmounting 2+ to 4 cells, its proximal side very oblique, so that one or more postnodals are placed between it and the costa, and at least twice as long as the distal side. The relative lengths of the four sides of the stigma, beginning with the longest, are : posterior, proximal, anterior, distal. No brace-vein, i.e., no thickened cross- vein in prolongation caudad of the proximal side. Dorsum of abdominal segments 1 and 2 dark metallic green, of 3-10 black, except that in the middle of 3-5 or 6 the black is replaced by ill-defined dark brown. Sides of 1 and 2, a transverse basal ring on 3, sides inferiorly of 3-7, pale brown or luteous. The dorsal black of 3-6 is continued ventrad at the posterior ends of these segments, forming a transverse apical band on each. A transverse basal yellow ring on 4-7. Intersegmental articulations of 7-10 luteous, otherwise 8-10 are wholly black, 9 being also pruinose on the dorsum. Pruinose traces are also visible on the intersegmental articulation of 1-2 and on the sides and sternites of most of the segments. Hind margin of 10 entire. Superior appendages longer than 10, a little shorter than 9, black, partly pruinose. Viewed in profile, the axis of each appendage is parallel to that of the abdomen, but the superior margin is strongly declined in the proximal fourth, less so in the remaining three-fourths ; the inferior margin in the distal three-fourths of the appendage is produced ventrad into a strongly convex lamella which terminates at the blunt apex of the appendage ; this lamella reaches its maximum at one-half to two-thirds of the appendage-length. On the dorsal surface of the appendage at the extreme base is a short transverse ridge, which in profile view appears as a tooth. In dorsal view, each superior appendage shows its superior margin as almost straight and decreasing in width throughout the proximal three-fourths, while the distal fourth is strongly curved toward its fellow of the opposite side; the ventral lamella is inclined inward and downward (mesad and ventrad) , the short transverse basal ridge is at the mesal margin. Inferior appendages about seven-eighths as long as the superiors, black. Each one, in profile view, conical, tapering more rapidly on the superior margin beyond two-fifths its length, so that at this point this margin shows an angle; distal third curved strongly upward (dorsad) and terminating in a slender very acute apex. In ventral view, each appendage is applied against its fellow for the proximal three-fifths of its length, beyond which it is continued along the outer 1913.] NATURAL SCIENCES OF PHILADELPHIA. 267 (ectal) edge as a blunt cylindrical process one-half to one-third as wide as the proximal part of the appendage; the abrupt contraction from the proximal part to the distal process is made by a right-angled "shoulder." I have not been able to detect any differences either in these appendages or in the genitalia of the second abdominal segment of the males from the four different localities. Young d^ . — Differs from the adult cf in the absence of pruinosity, in the paler hue of the yellow areas generally, in having pale yellow where the adult has luteous; metallic violet on the head paler, bases of the mandibles and a spot between each one and the adjacent eye yellow, metallic violet or metallic brown instead of metallic green on the thorax, an indistinct narrow yellowish stripe on each side of the mid-dorsal thoracic carina, a bright yellow line on the humeral suture, coxse and trochanters pale yellow, pterostigma paler brown with a pale luteous line just within each bounding vein, dorsum of abdominal segments 1 and 2 metallic blue, of 3-7 dark brown, darker at the hind end of each where it is continued ventrad as in the adult, most of the ventral surfaces of 7-10 pale j-ellow, except at the hind ends of 7 and 8 which are blackish, proximal half of the inferior appendages yellowish ventrally. 9 . Differs from the adult cf as follows : Dark color on the nasus, rhinarium and labrum shining black instead of metallic violet. Sides of the first two (confluent with the transverse yellow band below), bases of the mandibles and an oblique band running from each eye upward (dorsad) and inward (mesad) on to the anterior surface of the frons to a variable distance (not correlated with amount of pruinosity on body), bright yellow. A narrow stripe on the humeral suture, a wider stripe on the first lateral suture and on the mete- pisternum bordering the second suture, yellowish. Pruinosity on the thorax in slight quantity on the sterna and metapleuron, or on the sterna only. Coxae and trochanters yellow. Pterostigma as described for the young male, pruinose on the under surface. No pruinosity (or but a trace of it) on the dorsal side of abdominal segment 9, but present in slight traces on the sides inferiorly of 1-8 and in somewhat greater amount on the sternites of 1-8. Hind margin of 10 with a narrow mid-dorsal notch about one-fourth as deep as the length of the segment, from which runs a low median carina to the anterior end of the segment; ventral surface of this segment pale brown. Abdominal appendages about twice as long as segment 10, not as long as segment 9, straight, slender, tapering to an acute apex, black. 268 PROCEEDINGS OF THE ACADEMY OF [May, Genital valves ( = external gonapophyses of 9) reaching almost, but not quite, to the level of the hind end of 10, brownish, ventral margin spinulose, the palps slender, reaching beyond the level of the hind end of 10, but not of that of the anal tubercle ( = 11), darker in color. Of the two females from Tumatumari, one lacks all pruinosity on the body and the pterostigmata, the other has a small quantity on the rear of the head only; they appear to be the most immature of their sex in the present material. Dimensions. — Abdomen cf 26,5-34, 9 24,5-25,5; hind wing cf 21,5-25, 9 20-22.5 mm. Habitat. — British Guiana: Wismar, January 30 and 31, three males, three females; Rockstone, February 1, six males, one female; Tumatumari, February 5, one male, February 7, one female, February 11, one male, one female; Potoro Landing, February 10, three males. Collectors, L. A, and E, B, Williamson and B. J. Rainey, 1912. Type. — A male from Wismar, January 30, abdomen 30.5, hind wing 22,5 mm, long, in the collection of Mr, E. B, Williamson, of Bluffton, Ind, The other material in the cohections of Mr. WiUiam- son and of the author. Habits. — The Tumatumari female of February 11, the youngest of her sex of the present material bears this label by Mr. E, B, Wil- liamson: "taken at top of trail 2| mile past Tiger Creek trail on twig." A male from Potoro Landing, the smallest of his sex in all the present lot has this note by the same collector: "On ends of twigs wings expanded usually in shade," Mr, Williamson has kindly furnished the following notes with reference to the habits: "At Wismar back from the river, across the railroad tracks and south of the eminence on which stands the manager's (Mr. Croombie's) house, is a brushy swampy woods, traversed by numerous small streams which head in small ravines with abrupt and rocky ends or pockets. These streams at the season I was there were small and frequently disappeared and hence were followed with some difficult}^ in their upper course. All were short and were intermingled in the lower (east) end of the woods where the ground was swampy and the footing treacherous. The Agrionines were found usually near the upper ends of the streams below the rocky pockets. "At Rockstone the railroad track was followed back toward Wismar where two or three streams, small at this season, cross the track at intervals, flowing in a northerly direction. These streams were 1913. NATURAL SCIENCES OF PHILADELPHIA. 269 followed in the direction of their flow till each was lost in the woods and it was impossible to trace its course further. "The habits of the Agrionines at both locations (Wismar and Rockstone) were identical. They rested on the extreme tips of dead twigs, usually two or three feet from the ground, with outspread wings and rigidly horizontal bodies. The color and the position assumed gave the impression of alertness and self-reliance. The flight was swift, and because of light-conditions also, was difficult to follow. At rest they were fairly conspicuous. When one flew at my approach I stood still and began examining the possible destina- tions in the direction of its flight, and thus located it." Variations. — The smallest males are from Potoro Landing, followed in order by those from Tumatumari, Wismar and Rockstone. The order of the females by size from the smallest is not the same, owing perhaps to there being but a single specimen of this sex from Rockstone, viz.: Tumatumari, Rockstone, Wismar, The most remarkable variation in this species is in the number of cubito-anal cross-veins, which varies from 1 to 4 on the front wings and from 1 to 5 on the hind. Of the twenty specimens studied only three (all males) have the same number on all four wings, and of these three two have 2 cubito-anal cross-veins and the third three. Two other specimens (females) agree with each other in the number and arrangement of these veins on their four wings, leaving fifteen out of the twenty no two of which are exactly alike in this feature when all four wings are considered. The remarkable nature of this varia- tion will be appreciated when it is recalled that in the great majority of the Agrioninse of de Selys there is but a single cubito-anal cross- vein on each wing. The conditions found in the present material are summarized in the following Table II. Showing the Number of Wings of Twenty Individuals of Dimeragrion peraihitale having the Specified Numbers of Cubito-anal Cross-veins. (The numbers in parentheses are those of the wings in which the most prox- imal of these cross-veins is situated proximad to the level of the first antenodal.) Right front wing. Left front wing. Right hind wing. Left hind wing. 1 with 1 cu-a c-v 13(1) " 2 " " 5(1) " 3 " " 1 " 4 " " 3 with 1 cu-a c-v 11(1) " 2 " " 5 (4) " 3 " " 1(1) " 4 " " 2 with 1 cu-a c-v 10 " 2 " " 6 " 3 " " 2(1) " 4 " " 0 with 1 cu-a c-v 8 " 2 " " 8(3) " 3 " " 3(2) " 4 " " 1(1) " 5 " " 20 (2) 20(6) 20(1) 20(6) 270 PROCEEDINGS OF THE ACADEMY OF [May, It is rather curious, although at present insignificant, that the abnormality of having a cubito-anal cross-vein situated proximad to the level of the first antenodal should be more frequent on the left side in both the front and the hind wings. The specific name proposed, percuhitale, is in allusion to the unusual numbers of cubito-anal cross-veins. Bibliography. (Isolated descriptions of genera are not quoted here when they are included in Selys 1886 or Kirby 1890). Brauer, Redtenbacher, u. Ganglbauer. 1889. Fossile Insekten aus der Juraformation Ost-Sibii'iens. Mem. Acad. Imp. Sci. Si. Petersb., (7), XXXVI, No. 15. (Paleophlebia synlestoides, p. 6.) Calvert, P. P. 1893. Catalogue of the Odonata of the Vicinity of Philadel- phia, with an Introduction to the Study of this Group. Trans. Amer. Ent. Soc, XX, pp. 152a-272. (Relationship of the Odonate Groups to each other, pp. 211-214.) 1902. On the Systematic Position of Thaumatoneiira inopinata McLachlan (Order Odonata), with some remarks on the classification of the Suborder Zygoptera. Ent. Mo. Mag., (2) XIII, pp. 29-32. 1901-1908. Biologia Centrali-Americana. Neuroptera. Odonata. Lon- don. (Mexican and Central American genera and species of the legion Poda- grion, pp. 58-65, 1901; 354-357, 1907; 409, 1908.) Campion, H. 1913. The Antenodal Reticulation of the Wings of Agrionine Dragonfiies. These Proceedings, antea, pp. 220-224. CocKERELL, T. D. A. 1907. Fossil Dragonfiies from Florissant, Colorado. Bull. Amer. Mns. Nat. Hist., XXIII, pp. 133-139. (Lithagrion hyalinum Scud., redescribed and figured, p. 137; Melanagrion n. gen. for Lithagrion umbratum Scud., p. 138.) 1908a. Fossil Insects from Florissant, Colorado. Bull, cit., XXIV, pp. 59-69. (Original description of Phenacolestes, p. 60.) . 19086. Descriptions of Tertiary Insects. Atner. Journ. Sci., XXVI, pp. 69-75. (Additional on Lithagrion hyalimim and Phenacolestes, pp. 69, 75.) 1908c. Some Results of the Florissant Expedition of 1908. Amer. Nat., XLII, pp. 569-581. {Phenacolestes, pp. 574-5.) FoERSTER, F. 1899o. Contributions a la Faune Odonatologique Indo-Australe. Ann. Soc. Ent. Belg., XLIII, pp. 63-72. (Variations in Podopteryx, p. 70.) 18996. Zur Odonaten-Fauna von Madagascar. Ent. Nachr., XXV, pp. 186-191. (African-Madagassian genera of legion Podagrion and Pro- tolestes, n. gen., pp. 186-188.) 1900. Odonaten aus Neu-Guinea. Termeszet. Fiizetek, XXIII, pp. 81-108. (Identification table of Indo-Australian genera of legion Podagrion, p. 103; Argiolestes Selys, p. 104, Wahnesia, n. gen., p. 105.) 1909. Beitrage zu den Gattungen und Arten der Libellen. Jahrb. Nassau. Ver. Naturk. Wiesbaden, 62, pp. 213-235. (Relationship of Thau- matoneura, p. 214.) 1910. Beitrage, etc. II. Wien. Ent. Zeitg., XXIX, pp. 51-56. (Mega- podagrion Selys, p. 53, Allopodagrion, n. gen., p. 54.) Hagen, H. a. 1862. Ueber die Neuropteren aus dem lithographischen Schiefer in Bayern. Meyer's Paleontogr., X, 2te Lief., pp. 96-145. Handlirsch, a. 1906-1908. Die Fossile Insekten. Leipzig, W. Engelmann. Karsch, F. 1891. Neue Odonaten von Ecuador. Sodetas Entom., VI, pp. 105, 113, 121-2. (Nevragrion, n. gen., p. 105.) Kirby, W. F. 1890. A Synonymic Catalogue of Neuroptera Odonata. London : Gurney & Jackson. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 271 Martin, R. 1909. Odonates de la Nouvelle Guinee Britannique. Bull. Soc. Entom. Hal., LX, pp. 195-207. (Note on the groups of Argiolestes, p. 201.) M'Lachlan, R. 1896. On Odonata from the Province of Szechuen, in Western China, and from Moupin, in Eastern Thibet. Ann. Mag. Nat. Hist., (6), XVII, pp. 364-374. {Mesopodagrion, n. gen., p. 372.) 1897. Thaumatoneura inopinata, a new genus and species of Caloptery- ginaj. E7it. Mo. Mag., (2), VIII, pp. 130, 131. Meunier, F. 1896. Les Agrionides Fossiles des Musees de Munich et de Haarlem. Ann. Soc. Ent. France, 1896, pp. 30-35, 3 pis. 1898. Les Insectes des Temps Secondau-es. Revue critique des fossiles du Musee paleontologique de Munich. Arch. Mus. Teyler, (2), VI, pp. 85-149, 10 pis. MuTTKowsKi, R. A. 1910. Catalogue of the Odonata of North America. Bull. Publ. Mus. City Milwaukee, I. Needham, J. G. 1903. A Genealogic Study of Dragonfly Wing Venation. Proc. U. S. Nat. Mus., XXVI, pp. 703-764. 24 pis. 1911. Descriptions of Dragonfly Nymphs of the Subfamily Calopterygin£e (Odonata). Ent. Neivs, XXII, pp. i45-154. 2 pis. (Remark on more primitive Calopteryginae, p. 153.) OsBORN, H. F. 1910. The Age of Mammals in Europe, Asia and North America. New York. Ris, F. 1896. Untersuchungen iiber die Gestalt des Kaumagens bei den Libellen und ihren Larven. Zool. Jahrb., Abth. Syst. Geog. Biol., IX, pp. 596-624. (Relationships of Odonata to each other, pp. 621-624.) 1912. Neue Libellen von Formosa, Siidchina, Tonldn und den Phillippinen. Supplem. Entom. Deutsch. Ent. Mus., I, pp. 44-85. 3 pis. (Primitive venation in Zvgoptera, pp. 44-47; Rhipidolestes, n. gen., p. 57.) ScuDDER, S. H. 1890. The"^ Tertiary Insects of North America. Rep. U. S. Geol. SuTLK Terr., XIII. DE Selys-Longchamps, E. 1862. Synopsis des Agrionines. 3me Legion. — Podagrion. Bull. Acad. Roy. Belg., (2), XIV, pp. 5—44. 1886. Revision du Synopsis des Agrionines. Mem. Couron. Acad. Roy. Belg., XXXVIII, pp. i-iv, 1-233. 1891. Causeries Odonatologiques No. 5. Deux nouveaux groupes d'Agrionines de Madagascar: Nesolestes et Nesocnemis. Comptes Rendus, Soc. Ent. Belg., (IV), 23, pp. cccxcviii-cccciii. Till YARD, R. J. 1911. On the genus Cordulephya. Proc. Linn. Soc. New South Wales, XXXVI, pp. 388-422, 2 pis. (General relationship of Odonate groups, pp. 410, 411.) 1912. On the genus Diphlebia, with descriptions of new species and life- histories. Proc. cit., XXXVI, pp. 584-604. 2 pis. (Relationships of groups of Zygoptera, pp. 600-603.) 1913. On some New and Rare AustraUan Agrionidae (Odonata). Proc. cit., XXXVII, pp. 404-479. 6 pis. (Classification of Zygoptera, pp. 404-407.) Williamson, E. B. 1913. The Medio-anal Link in Agrionina? (Odonata). Ent. News, XXIV, pp. 258-261. The following contain descriptions and studies of Protodonata published since Handlirsch's great resume. Die Fossile Insekten. Handlirsch, a. 1910. Ueber die Insektenreste aus der Trias Frankens. Abh. Naturh. Ges. NUrnberg, XVIII, 4 pp. (On Handlirschia gelasii Reis =Reisia gelasii.) 1911. New Paleozoic Insects from the Vicinity of Mazon Creek, Illinois. Amer. Journ. Sci., XXXI, pp. 297-377. {Paralogopsis, n. gen., p. 374.) Meunier, F. 1909a. Nouveaux Insectes du Stephanien de Commentry (Cin- quieme note). Bull. Mus. Nation. Hist. Nat., 1909, No. 1, pp. 37-40 (Gilsonia n. gen. p. 37). 19096. Nouvelles Recherches sur les Insectes du Terrain Houiller de Commentry (Allier). Ann. Paleontol. (Paris), IV, pp. 12.5-152, 5 pis. 272 PROCEEDINGS OF THE ACADEMY OF [May, Reis, O. M. 1909. Handlirschia Gelasii nov. gen. et spec, aus dem Schaumkalk Frankens. Ab/id. Bayer. Akad. Wiss., Math.-Phys. Klasse XXIII, pp. 659-694, 1 pi. ' ^^ Sellards, E. H. 1906. Types of Permian Insects. Amer. Journ. ScL, XXII, pp. 249-258. (Tupus, n. gen.) Explanation of Plate XIV. Figs. 1-5. — Phenacolestes mirandus Cockerell. Florissant, Colorado. From photographs. These are the specimens described antea, pp. 225-230. Fig. 6. — Dimeragrion percubitale n. gen., n. sp. Wings of male, Rockstone, British Guiana, February 1, 1912. (From photograph by H. A. Walters.) Figs. 7, 8. — D. percubitale, apex of abdomen of male type, Wismar, British Guiana, January 30, 1912. 7, dorsal view; 8, right side profile view. Camera draw- ings, Zeiss oc. 2, objective A with lower lens off. Scale alongside fig. 7 is that of one millimeter in tenths, for figures 7 and 8 only. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 273 A CONTRIBUTION TO THE KNOWLEDGE OF THE ORTHOPTERA OF ARGENTINA. BY JAMES A. G. REHN, The present paper is based entirely on collections made by Mr. P. Jorgensen, of Buenos Aires. These collections were sent either direct to us for study or through Mr. Esben Petersen, of Silkeborg, Denmark, to whose interest we are obligated for much of the material treated in the paper. In addition to thanking these gentlemen for the opportunity to study the present collections, we also wish, on behalf of the Academy, to thank Mr. Jorgensen for the very important additions received from the collection, by far the greater portion of which, including all the types and unique specimens, remain in the Academy series. The entire series, collected over the greater portion of northern and north-central Argentina, comprises ten hundred and twenty specimens, representing one hundred and sixty -two species, of which three genera and twenty species are new to science. The general regions represented in the collections are: First. Territory of the Misiones. The extreme northeastern extension of Argentina extending between the Parana and Uruguay Rivers, which respectively separate it from Paraguay and Brazil. In consequence of its f>osition it has a far greater proportion of tropical types than any other portion or portions of Argentina. Second. Province of Corrientes. Southwest of the Misiones and between the same rivers, but of a less tropical character. Third. Province of Jujuy. The extreme northwestern province, forming part of the Bolivian boundary. This is a region charac- terized by a number of types of Orthoptera peculiar to it or shared with Bolivia or the province of Salta to the south and east. Fourth. Province of Salta. This province is next south of Jujuy, which it also bounds on the east, the latter portion forming part of the Chaco region. Fifth. Province of Tucuman, South of Salta and at the east base of the Andean uplift, part of which is within the province. Sixth. Provinces of San Juan and Mendoza. These are in the •west-central part of the country, forming a considerable part of the Chilean frontier and including conditions from the plains to the 274 PROCEEDINGS OF THE ACADEMY OF [MajT^ summits of the Andes. Mr. Jorgensen has kindly furnished us with the following information on these two provinces, which he has examined with considerable care. "Provincia de Mendoza is unusually dry and exceedingly hot (extreme heat 42° C). Rain falls as a rule in local showers, although occasionally there are heavy rainfalls with terrific thunderstorms. As a rule, the sky is cloudless,, and the temperature, even in summer, often falls to a considerable degree at night. In the district around the town of Mendoza it freezes not rarely at night during the 'winter' months (May-Septem- ber), although even at this elevation to see a layer of snow in the morning is rare, and in any event, even in the coldest months, snow never has the opportunity of laying, for it can be quite hot towards midday. Only high up and in the front range of the Cordillera de Mendoza the snow lays for long periods in the very coldest months. In the lowlands, or rather the flat lower lying districts, east of the Cordilleras, the ground is composed of alluvial strata of an ash-gray, finely powdered clay soil, which bears a rich bush vegetation, the gray color of which, together with its adaptation to the climate, points to an ancient desert vegetation. A large proportion of the plants,, quite apart from the cacti, are thorny and spiky, the Spanish name 'Espinales' thus suiting the district admirably. The grass fruits are often prickly and also in a single instance mechanical flycatchers.. Many of the plants here are very aromatic or contain quantities of resin. At the transition point between the lowlands and the Cor- dilleras, the ground is more or less rising, here and there swamps are to be found, often strongly impregnated with saltpeter, and nearly everywhere are to be found stones (rolling stones), or even pieces of rock, mixed with the earth. The front ranges of the Cordilleras,, which rise to the west of the city of Mendoza, are partly solid rock and partly products of disintegration. These are covered with the- very same plants as the lowland (Covillea divaricata, Gourhcea decor- ticans, Prosopis campestris and alpataco, Acacia furcata, Senecia mendocinus, Suoeda divaricata, etc.). Localities: Mendoza (767 meters above the sea), Chacras de Coria (936 meters), nine kilometers more southerly, both at the foot of the first range, Precordillera de Mendoza; Punta del Agua and Blanco Encalada (1,068 meters) in the mountains and railroad stations on the Ferro Carril Transandina ;, Potrerillos (1,368 meters) and San Ignacio (1,325 meters), railroad stations in a large valley in the second range, Cerro Negro, on the Rio Mendoza; Pedregal (696 meters), seventeen kilometers east of Mendoza, swamps; La Paz (504 meters), forty-eight kilometers 1913.] NATURAL SCIENCES OF PHILADELPHIA. 275 .southeast of Mendoza on the Rio Tunuyan. The Provincia de San Juan is similar to Mendoza, but hotter and drier." Seventh. Province of San Luis. East of Mendoza and, according to Mr. Jorgensen, of the same nature and condition as around Mendoza. Eighth. Province of Cordoba. East of San Luis and forming a considerable part of the great ''Pampa. " Ninth. Vicinit}^ of Buenos Aires, The immediate vicinity of the t3apital, a historic zoological locality, is represented by quite a number of specimens. The total number of species represented aside from the new forms is one hundred and forty-two, of which fifty-six are here recorded from Argentina for the first time. Of these fifty-six, forty-nine are recorded only from the Misiones. Of the total of one hundred and sixty-two species, one hundred and sixteen are recorded from the Misicrnes. These figures give some idea of the richness of the Misiones territory in Orthoptera. A tabulation of the distribution of the entire list of species shows, among other things, the following interesting features: One hundred and sixteen species recorded from the Misiones. Twenty species recorded from the Misiones and west of, but not south of, the same. Forty-seven species recorded from Brazil, Paraguay and the Misiones alone in Argentina. Thirty-two species recorded from the Misiones and the Pampan region, also northward, but not westward. Seventeen species recorded from Buenos Aires westward to Mendoza. (Typical pampan and plains forms.) One species recorded only from Jujuy and the Pampas. Three species recorded only from the Chaco, Jujuy, and Tucuman. The distribution of all of the species treated has been given in the paper, and, aside from the new ones, the forms here recorded from Argentina for the first time bear an asterisk before their names. Family BLATTIDiB. Subfamily PSEUDOMOPIN^. * Fseudomops negleota Shelf ord. 1906. P[seudomops] neglecta Shelford, Trans. Ent. Soc. London, 1906, p. 256. [Rio Grande do Sul, Brazil.] Misiones. December 20. (No. 4.) ''Common on flowers." Two males, one female. 276 PROCEEDINGS OF THE ACADEMY OF [May^ While fully agreeing in every other way with the description of the species, which was based on a single female, the males are found to lack the pale annulus on the antennae, which is marked in the single female. The measurements of the specimens are as follows: Length of body 8.6 mm. 8.5 mm. 9. mm. Length of pronotum 3. " 3. " 3.2 " Greatest width of pronotum 3.2 " 3.3 " 3.6 " Length of tegmen 8. " 8.2 " 8. This species is now known from southern Brazil (Rio Grande do Sul), Uruguay (Montevideo; Shelf ord), eastern Paraguay (Puerto Bertoni),^ and northern Argentina. Ischnoptera rufa Brunner. 1865. I[schnoptera] rufa Brunner, Nouv. Syst. Blatt., p. 131, PI. Ill, figs. 13a-c. [Brazil; Porto Rico.] Misiones. December 2, 1910. (No. 5.) Two males. We have no previous Argentine records of this species aside from that from San Lorenzo, Jujuy (Giglio-Tos), Ischnoptera marginata Brunner. 1865. I[schnoptera] marginata Brunner, ibid., p. 132. [Brazil.] Misiones. December 20, 1910. (No. 8.) One female. This specimen is perfectly typical of the species. The nearest definite localities from which the species has been recorded are Sapucay and Villa Rica, Paraguay, and Salta, Argentina. Ischnoptera brasiliensis Brunner. 1865. I[schnoptera] brasiliensis Brunner, ibid., p. 131, pi. Ill, figs. 12a-c. [Brazil.] Misiones. December, 1910. Two males. Pedregal, Mendoza. December 14, 1906. One male. The Pedregal specimen shows no differences from the Misiones individuals. The species has also been recorded from San Lorenzo,^ Jujuy, Oran, Salta and San Pablo, Tucuman (Giglio-Tos), Rio Negro, Sierra de Corrumalan, Carmen de Patagones (Berg), and Bahia Blanca (Saussure), Argentina; Sapucay, Paraguay (Caudell and Rehn), and Uruguay (Berg). 1 The acquisition of the present material enables us to identify the broken specimen of this genus from Puerto Bertoni recorded by us as Pseudomops sp. {Ent. News, XXII, p. 247) as this species. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 277 Blattella germanica (Linnaeus). 1767. [Blatta] germanica Linn£Eus, Syst. Nat., 12th ed., p. 688. [Denmark.] Misiones. February 4, 1910. (No. 3.) One female. Subfamily NYCTIBORINJE. *Nyctibora limbata (Thunberg). "1826. Blatta limbata Thunberg, Mem. I'Acad. Imp. Sci. St. Petersb., X, p. 277." Misiones. January, 1911. (No. 9.) One male. We have followed Shelford in using limbata for the species usually called sericea Burmeister. The set of the Memoires in the Academy library unfortunately lacks volume ten, so we are unable to verify this reference. The present specimen has but four tarsal joints in the right caudal tarsus and another male from Puerto Bertoni, Paraguay, has the same true of the left caudal tarsus. This species has been recorded by the author from Puerto Bertoni, Paraguay, but it is here reported from Argentina for the first time. Subfamily EPILAMPRIN.E. Rhicnoda jorgenseni n. sp. Type: 9 ; Misiones, Argentina. December 2, 1910. (P. Jor- gensen.) [Acad. Nat. Sci. Phila., type No. 5,210.] Closely resembling R. rugosa Brunner, from the Oriental region, but differing in the proportionately broader abdomen, the broader and less produced supra-anal plate, which is also much more shallowly divided, and in the smaller size. Size medium; form greatly depressed; surface of the dorsum coriaceous. Head with only the extreme cephalic portion of the vertex visible beyond the pronotum; facial portion strongly depressed and flattened; interocular space equal to twice the depth of the eye, rugulose, the occipital outline moderately arcuate, very narrowly rounded in section; antennae subequal to half the length of the body. Pronotum semicircular in form, the cephalic and lateral margins regularly arcuate, caudal margin subtruncate with the faintest possible very low broad median projection, lateral angles very narrowly rounded. Caudal margins of the meso- and metanotum arcuato-emarginate, that of the metanotum more decidedly so than that of the mesonotum, the median projection of the metanotum more decided than that of the pronotum or the mesonotum, Teg- mina equal to about two-thirds of the length of the pronotum, lateral, squamiform, the basal width of the same but little less than 278 PROCEEDINGS OF THE ACADEMY OF [May, the length, external margin slightly arcuate, internal margin more decidedly arcuate, the external margin thick- ^^-^7'''''^^"^ ened and projecting distad of the internal / / \ \ margin at the apex as a minute point; apex of I aH \ Tm^ \ ^^^ tegmina slightly surpassing the margin of 1 'I/- ^y'-XT* . ^Q mesonotum. No >vings present. Abdo- Jjr:r^x men slightly broader than the thoracic seg- IJh^-^^'. "■',""" ' -"'^'^^>4>\ ments; caudal margins of the segments with (//V".' ■ '.'.'.'.'.' '■ !tt^:t^y low, regularly placed ridges, such as are found i V --•■'lU"'7j^ "t in other species of this genus; caudo-lateral ^— ^ \ angles of the segments acutely produced; Fig. l.—Rhicnoda jor- supra-anal plate transverse, the length con- gensenin. sp. Dor- tained about twice in the greatest width, (Xl|.) the margin regularly arcuate with a shallow median rectangulate emargination ; cerci no more than half the length of the supra-anal plate, broad fusiform, depressed; subgenital plate broad, the general outline of the plate arcuate with a shallow emargination by each cercus. Cephalic femora with the ventro-cephalic margin with four median spines, the ventro-caudal margin with three spines on the distal half; median femora with five spines ventro-cephalad, one of which is apical, ventro-caudal margin with the same number, but with the spines more regularly placed; caudal femora with the ventro-cephalic margin with five spines similarly disposed to those on the same margin of the median femora, caudal margin with spines but one or none; caudal tarsi missing in the type specimen. General color above Vandyke brown, the tegmina and the lateral portions of the metanotum prout's brown, the abdominal ridges weakly lined with seal brown. Ventral surface chiefly tawny-olive, the abdomen broadly but indefinitely bordered with seal brown, the paler portions with numerous spots of the same color, these spots being placed on very low and not very distinct tubercles, a narrow medio-longitudinal line of seal brown indicated on the venter of the abdomen. Head ventrad to below the eyes seal brown; eyes and antennae clove brown. Limbs becoming burnt umber distad. Measurements. Length of body 22 . 5 mm. Length of pronotum 6 . Greatest width of pronotum 11 . " Length of tegmen 4 . " ■Greatest width of abdomen 14 . " 1913.] NATURAL SCIENCES OF PHILADELPHIA. 279 The type of this species is unique. It is quite singular that the present species shows no close relationship to any of the previously known American forms of this peculiar genus, while its close affinity to the Oriental rugosa is immediately apparent when the two are examined. We take pleasure in dedicating this interesting species to the collector, Mr. P. Jorgensen, to whom we are indebted for the oppor- tunity to study the very remarkable collection of Argentine Orthop- fera treated in the present paper. Epilampra stigmatiphora- n. sp. Type: cf; Misiones, Argentina. February 8, 1910. (P. Jor- gensen; No. 1.) [Acad. Nat. Sci. Phila., tj^pe No. 5,211.] This new form is a very interesting species apparently allied to E. testacea Brunner, from Brazil, and caizana Giglio-Tos, from Bolivia, differing from the former in the color pattern of the head and pronotum and in the covered portion of the tegmen being no darker than the general color, and from caizana in the greater size, in the more rotundate median protuberance of the caudal margin of the pronotum, the non-punctate margins of the same, in the blackish humeral trunk of the tegmina and the non-punctate limbs. Size medium. Head very slightly projecting beyond the pronotum, considerably depressed; interocular space nearly one and one-half times the depth of the eye, the outline hardly rounded when seen from the dorsum, the eyes well rounded; paired ocelli enormous in size, elliptical in outline, converging ventrad, slightly impressed; antennae slightly longer than half of the body length. Pronotum of the form, found in most species of the genus, cephalic margin regularly arcuate from the lateral angles except for a slight flattening dorsad of the head, lateral angles very narrowly rounded obtuse- angulate, lateral margins moderately convergent caudad, caudal margin appreciably produced mesad into a broad rounded expansion, laterad of which the margins are arcuato-emarginate ; disk with two pairs of impressed punctures slightly cephalad of the middle, the usual transverse creasing of the surface toward the caudal margin distinct but not deep. Tegmina surpassing the apex of the abdomen by about half the pronotal length, moderately broad, the median half subequal in width ; costal margin moderately arcuate in the proximal 2 2-<; //o-^-^opo?, bearing brandmarks . 19 280 PROCEEDINGS OF THE ACADEMY OF [May, half, then straight and finally narrowly rounding to the apex, sutural margin subrect in the proximal two-thirds, thence arcu- ate oblique-truncate to the well- rounded but in general form acute apex; venation prominent; anal field very elongate pyriform, the anal vein reaching the sutural margin mesad. Wings ample, the greatest width contained one T.. o 77 -7 f 4-1, and two-thirds times in the tig. 2. — E pilampra stigmatipnora n. sp. Dorsal view of type. (Xli) length of same; costal margin moderately arcuate distad, apex rotundato-rectangulate; region of the costal veins coriaceous, sub- opaque; anterior ulnar vein with three complete and eight incom- plete rami; anterior field of the wing very broad. Abdomen strongly depressed; supra-anal plate broad, produced, rounded, with a median rectangulate emargination ; cerci subfusiform, the distal extremity attenuate; subgenital plate broad, rounded, .slightly asymmetrical, slightly impressed at the insertion of the styles, the latter very small. Cephalic femora with the ventro-cephalic margin armed with four or five spines mesad and a single distal one, the area between supplied with very short setiform spinulations. Median and caudal limbs with the ventro-cephalic margins of the femora supplied with five spaced spines. Caudal metatarsi very slightly longer than the re- mainder of the tarsus, biseriato-spinulose ventrad, pulvillus small, distad. General color cream-buff, the tegmina, aside from the costal por- tion, nearly uncolored translucent, maculations Vandyke brown and where less decided russet. Head with the occiput having a large maculation of vandyke brown divided cephalo-caudad by a line of the base color ; region from the middle of the interocular space to the middle of the interocellar space russet with a decided vandyke brown section dorsad; eyes seal brown; antennae, except for the pale proxi- mal joint, bistre. Pronotum thickly speckled with fine vandyke brown points with less frequent rather regularly placed larger dots ' of the same color, a median sublyrate pattern, part of which is made up of a transverse series of eight large dots, of the same color; caudal margin with a series of well-spaced points. Tegmina with a short sinuous line on the base of the humeral trunk seal brown, the well- 19 13. J NATURAL SCIENCES OF PHILADELPHIA. 281 scattered points, which sometimes resolve themselves into larger blotches, russet. Wings hyaline with the veins of the anterior field very pale russet and of the posterior field Vandyke brown, the coriaceous portion of the costal margin buffy. Limbs and ventral surface pale clay color, the latter finely speckled with vandyke brown and with larger paired lateral patches of the same color, the former darkening in color distad, the spines tawny. Measurements. Length of body 23. mm. Length of pronotum „ 6 . " Greatest width of pronotum 7.5 " Length of tegmen 22 . 5 " Median width of tegmen 7.4 " In addition to the type, we have examined six paratypes (taken January 1, February 8, October 1, and December, 1910) which differ little from the type. The size shows almost no variation, while color differences are wholly in the degree of density of the fine brownish punctations on the tegmina. In this respect the type represents one pale extreme, from which the series grades to the other extreme, represented by one specimen, in which these small spots are much more abundant and generally distril:)uted on the tegmina, being well marked on the costal field. The larger maculations of the tegmina of the type are represented in the darker individuals by smaller, Vandyke brown, more sharply cut ones, while the lining of the humeral trunk is broader, solid, and decidedly striking. *Epilainpra verticalis Burmeister. 1838. E[pilampra] verticalis Burmeister, Handb. der Entom., II, Abth.. II, pt. 1, p. 505. [Brazil.] Misiones. November 2, 1910. (No. 6.) One female. All of the previous records of this species are from Brazil. Subfamily BLATTIN^. Periplaneta brunnea Burmeister. 1838. P[eriplaneta] brunnea Burmeister, ibid., p. 503. [Chile; Demerara.] Embarcacion, Salta. April, 1911. One female. This specimen shows no differences from a pair from Caiza, BoHvia. The species has been recorded from San Lorenzo, Jujuy, Argentina, Aguairenda and Caiza, Bolivian Chaco and Colonia Risso, upper Paraguay (Giglio-Tos). 282 PROCEEDINGS OF THE ACADEMY OF [May, SubfamUy PANCHLORIN^. Fanchlora thalassina Saussure and Zehntner. 1893. Panchlora thalassina Saussure and Zehntner, Biol. Cent.-Amer., Orth., I, pp. 91, 93. [Guatemala; Santa Catharina, Brazil; La Plata, Argentine Republic] Misiones. April 20, 1910; November, 1910. (No. 2.) One male, one female. The above fully agree with material from Puerto Bertoni, Para- guay. The form has been reported from Sapucay, Paraguay (Cau- dell) and Tala, Salta and San Lorenzo, Jujuy, Argentina (Giglio-Tos) . SubfamUy BLABERIN^. *Monastria biguttata (Thunberg). "1826. Blatta biguttata Thunberg, Mem. I'Acad. St. Petersb., X, p. 276, pi. 14." Misiones. January 29, 1911. (No. 10.) "Common." One female. This specimen is very interesting as, while it fully agrees with the descriptions of the female of this species in every other respect, according exactly in the form of the tegminal margins, it differs in the tegmina being distinctly longer than in the more usual type described. The tegmina in our specimen cover nearly half of the abdomen and are nineteen millimeters in length from the point of attachment to the extreme portion of the margin. The previous descriptions give the length of the tegmina as from ten to twelve millimeters. All of the older records of the species are simply from ''Brazil." The present author has recorded a male from Yaguarasapa, Paraguay, while Giglio-Tos^ has recorded what is in all probability this or a congeneric species from Paraguay as Blabera fumigata, a peculiarly Cuban species, the female of which resembles this genus. *Blaberus fraternus Saussure. 1864. Blabera fraterna Saussure, Mem. I'Hist. Nat. Mex., Ill, p. 241. [South America; Cuba?] Jujuy. April, 1911. One female. This specimen shows a few differences from the original description, which was based on the male sex, but these are probably only sexual. In all the more important characters, which would be shared by both sexes, our specimen agrees with the description. The pronotal 2 Zoolog. Jahrb., Abth. Syst., VIII, p. 805. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 283 patch is considerably extended laterad along the caudal margin and is sharply cut out on the sides. This form belongs to the same group of species as minor, and to which apparently belongs hrasilianus Saussure and sulzeri Guerin. We know nothing definite regarding the distribution of this species. Subfamily CORYDIX.E. Melestora fulvella n. sp. Type: cf; Misiones, Argentina. December, 1910. (P. Jor- gensen.) [Acad. Nat. Sci. Phila., type No. 5,212.] This species, the first of this very peculiar genus seen by us, differs from adspersicollis and fuscella Stal, both from Rio Janeiro, in the smaller size, non-lineate pronotum, and very much more uniform coloration. Size small; form moderately depressed; body, except pronotum and tegmina, covered with fine ochraceous pile. Head but very slightly projecting beyond the pronotum, outline of the occiput subtruncate; interspace between the eyes broad, about equal to one and one-half times the greatest depth of the eye, this region and the equally broad interantennal section impresso- punctulate; eyes elongate pyro-reniform in outline; antennae subequal to the body in length. Pronotum transverse elliptical in outline, the cephalic margin subtruncate, Fig. 3.—Meleslora ful- lateral portions moderately declivent; surface ^f^^egnS (S^'ti^l polished. Tegmina surpassing the apex of the ( x 4.) abdomen by more than the length of the pronotum, very slightly inferior to the tips of the wings, sublanceolate in outline ; costal margin gently arcuate, sutural margin straight in the proximal two-thirds and thence arcuate to the rather broadly rounded apex; venation of the peculiar type found in this genus, the trans- verse veins forming regularly subquadrate or subrectangulate areas, the surface of these areas as well as the costal field minutely papillose; costal veins seven in number; anal vein joining the sutural margin at about a third of the length from the base. Supra-anal plate with the distal margin arcuate; subgenital plate asymmetrical; cerci depressed, hardly tapering, apex moderately acute. General color rather pale ochraceous, on the disk of the pronotum inclined toward tawny. Occiput ferruginous, passing into hazel on the lower face; eyes clove brown; antennae drab. 284 PROCEEDINGS OF THE ACADEMY OF [MaV, Measurements. Length of body 7 . mm. Length of pronotum 1.8 '' Greatest width of pronotum 2.2 " Length of tegmen 7.7 " Greatest width of tegmen 2.7 " The type of this interesting species is unique. Family MANTID^. Subfamily ORTHODERIN^. *Maiitoida'burmeisteri (Giebel). 1862. Ch[cetoessa] burmeisteri Giebel, Zeitschr. fiir die Gesammt. Naturwiss., XX, p. 316. [Neu Freiburg, State of Rio de Janeiro, Brazil.] Misiones. January 26, 191L One male. This is the first record of the species since the origilial description. Subfamily MAXTIX.^. Acontista bimaculata Saussure. 1870. A[contista] bimaculata Saussure, Mittheil. Schweiz. Entom. Gesell., Ill, p. 229. [Brazil.] Jujuy, Province of Jujuy. April, 1911. One male. Misiones. January 31, 1911; February 15, 1911; October, 1910; October 30, 1909. (No. 10.) Six males. A single Misiones male (October 30, 1909) has the head, pronotum, and cephalic coxae washed with orange. An individual of the same sex from Sapucay, Paraguay, now before us, has the same color present but more extensive, coloring the femora as well. The only previous Argentine record is from San Lorenzo, Jujuy (Giglio-Tos) . The other known records of the species are from Paraguay (Giglio-Tos) ; Sapucay, Paraguay (Caudell, Rehn) ; Asuncion, Paraguay (Giglio-Tos) ; Rio Grande do Sul, Brazil (Saus- sure); Goyaz, Brazil (Saussure), and Chiquitos,- Bolivia (Saussure). Brunneria brasiliensis Saussure. 1870. B[runneria] brasiliensis Saussure, ibid., p. 240. [Brazil.] Misiones. March 15, 1910. (No. 2.) One male. This is the second record of the species from Argentina. Other records of the form show its range to extend from Brazil and Paraguay (specificalty from Sapucay) west to San Lorenzo, Jujuy, Argentina. Brunneria subaptera Saussure. 1869. B[rimneria] subaptera Saussure, ibid., p. 71. [Argentine Pampas.] Buenos Aires. May 1, 1909. One female. This species has been recorded from northern Patagonia north to Carcarana and Buenos Aires. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 285 The Genus COPTOPTEEYX. In studying the material in the present collection belonging to the genus Coptopteryx, we have found it necessary to make a preliminary revision of the genus, examining all the available material belonging to the same. From the present series, the Academy Collection and the Hebard Collection we have assembled fifty specimens, and from a careful study of this series it is evident that considerable confusion has existed in all previous work on the genus, including that by the present author. A large portion of this confusion is directly traceable to Saussure's error in using Blanchard's name crenaticoUis for a species distinct from that author's gayi, when, as shown by the present material, they are clearly sexes of the same species. It is evident from our material that almost all of the species'* of the genus show very considerable size variation, that venational characters are very unreliable, and also that green phases with hyaline tegmina and wings in the male, and brown phases with infumate or infuscate tegmina and wings in the same sex probabl}^ will be found in the same species, although we have little conclusive evidence regarding the color phases. The following key has been constructed from the material before us and we trust it will be found serviceable. Males. a. — Size medium to large. Shaft of pronotum not strongly con- stricted mesad. Width of head contained at least two and one-half times in the length of pronotum. b. — Size large (body 56.5-79 mm.; pronotum 15-21.2). c. — Greatest width of the pronotum contained not more than three and one-half times in the length of the same, d. — Wing narrower, the breadth contained more than twice in the length argentina (Burmeister). dd.— Wing broader, the breadth contained less than twice in the length claraziana Saussure. cc. — Greatest width of the pronotum contained at least four times in the length of the same thoracica n. sp. bb. — Size medium (body 43.5-54 mm.; pronotum 11.3-14.8), gayi (Blanchard). aa. — Size small. Shaft of pronotum strongly constricted mesad. Width of head contained less than twice ' in the length of . pronotum constrida n. sp. * The species Mantis gymnopyga Burmeister and Mantis grisea Philippi, which have been questionably referred to this genus, do not appear to belong here. Phihppi's grisea is clearly a nymph of another genus as suggested by Saussure. 286 PROCEEDINGS OF THE ACADEMY OF [May, Fe7nale. a. — Lateral margins of the pronotum regularly and finely denticulate. Tegmina with the discoidal and anal fields unicolorous. (Form robust.) argentina (Burmeister). aa. — Lateral margins of the pronotum strongly spinose, the spines with regularly intercalated spinulations. Tegmina with the discoidal and anal fields bicolored. b. — Size medium to large. Pronotum with the length of the collar contained over twice in that of the shaft, c. — Size large (body 62-80 mm.; pronotum 19-25.3). d. — Pronotum broader, the greatest width contained about three times in the length, shaft weakly carinate. Cephalic limbs more robust daraziana Saussure. dd. — Pronotum more elongate, the greatest width contained about four times in the length, shaft decidedly though finely carinate. Cephalic limbs slenderer, thoracica n. sp. cc. — Size medium (body 44-54 mm.; pronotum 13.2-15.8), gayi (Blanchard). bb. — Size small. Pronotum with the length contained not more than twice in that of the shaft constricta n. sp. Coptopteryx argentina (Burmeister) .5 1864. M[antis\ arQenlina Burmeister, Berl. Entom. Zeitschr., VIII, p. 208. [Argentina between Buenos Aires and Mendoza.] Misiones. January 18, 1910. (No. 1.) One male, Mendoza, Prov. of Mendoza. Elev. 767 meters. May 2, 1908. One female. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. January 20, 1908; March 9, 1908; April 5 and 11, 1907. Four females. Cordillera de Mendoza. March 22, 1908. One male. Of this species we have before us a series of eleven males and fifteen females, from the evidence of which we know there is a great amount of individual variation in size. The two males from Sapucay previously recorded by us as crenaticollis (vide infra) are considerably smaller than any other specimens of that sex, although the largest male individual is from the same locality. The females of the Sapucay series show very similar, but somewhat less decided size variation, while those from the Province of Mendoza average con- siderably smaller, yet show much variation among themselves. Measurements of the extreme individuals are as follows: ^ To this species belongs the male material from Sapucay, Paraguay, recorded by us as crenaticollis {Proc. Acad. Nat. Sci. Phila., 1907, p. 155). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 287 Length Length Greatest Length Length of Length of of width of of cephaUc of caudal body. pronotum. pronotum. tegmen. femur. femur. mm. mm. mm. mm. mm. mm. cf Sapucay, Paraguay. [Hebard Coll.] 56.5 15. 3.8 37.5 11.8 18. cf Sapucay, Paraguay. [Hebard Coll.] .79. 21.2 5.5 53.3 18. 28. d^ Cordillera de Mendoza. [A. N. S. P.] .64. 17. 4.7 48. 13.7 20.5 cf Misiones. [A. N. S.P.] .76.5 20.8 5.2 53.2 16.5 26.5 9 Sapucay, Paraguay. [A.N.S.P.] 67. 21. 6.5 8.6 18. 20. 9 Sapucay, Paraguay. [A. N. S. P.] ..77. 25.3 8.2 13.7 22.2 24.5 9 Mendoza. [A.N.S.P.] .64. 19. , 6.2 13. 16.5 18.2 9 Mendoza. [A. N. S. P.] .70. 22.2 7.2 14.5 19.2 20.8 The two small male.s from Sapucay and the Cordillera de Mendoza male differ from all the others of that sex in having the extreme proximal portion of the marginal field of the tegmina equally hyaline with the remainder of that field, while the other specimens have the same opaque rufous, on one side touching the humeral trunk and on the other obliquely delimited. The Cordillera de Mendoza specimen differs from all the other specimens seen in having the margins of the collar of the pronotum more decidedly converging cephalad, the cephalic extremity being much narrower than usual in consequence. This appears, however, to be purely individual. The species, from the basis of previous records and present material, is known to range from southern Brazil (Saussure) and central Paraguay (Sapucay) south to Uruguay (Saussure) and west to the Cordillera de Mendoza, Argentina. Coptopteryx claraziana Saussure.7 1869. C[optopteryx] claraziana Saussui'e, Mittheil. Schweiz. Entom. Gesell., Ill, p. 66. ["Ager argentinus."] Chacras de Coria, Prov. de Mendoza. Elev. 936 meters. Decem- ber 13, 1907. One male. This specimen has the tegmina fuliginoso-hyaline, while the wings are more decidedly fuliginous. The female from Carcaraiia, Argen- tina, previously recorded by us as crenaticoUis,^ belongs to this species. The Chacras de Coria specimen measures: length of body, 72 mm.; 6 Imperfectly developed. ^ This name was almost immediately cancelled by Saussure, who then considered the species to represent Blanchard's crenaticollis. This is clearly an error and the name claraziana is available for the species, which has been recorded by most authors as crenaticollis, following Saussure. 8 Proc. Acad. Nat. Sci. Phila., 1907, p. 155. 288 PROCEEDINGS OF THE ACADEMY OF [May, length of pronotum, 19; greatest width of pronotum, 5.2; length of tegmen, 52; length of cephalic femur, 14.7. This species, as far as can be determined from our correlation of the published records, ranges from southern Brazil (Saussure) and the Province of San Pedro, Paraguay (Giglio-Tos), south to Bahia Blanca and the north of Patagonia (Saussure), west to Mendoza Province (Chacras de Coria) and east to the Rio de la Plata (Buenos Aires; Giglio-Tos). Coptopteryx thoracica n. sp. 1894.^ Coptopteryx gaiji Giglio-Tos (not of Blanchard), Boll. Mus. Zool. Anat. Comp. Torino, IX, No. 184, p. 3. [Province of San Pedro, Paraguay; Santa Rosa, Salta, Argentina.] 1907. Coptopteryx gayi Rehn (not of Blanchard), Proc. Acad. Nat. Sci. Phila., 1907, p. 155. [Sapucay, Paraguay.] Type: 9 ; Sapucay, Paraguay. December 19, 1904. (William Foster.) [Acad. Nat. Sci. Phila., type No. 5,215.] The differential characters of this form have been emphasized in the key. Size large (for the genus); form less robust than in argentina. Head trigonal, slightly broader than deep; occiput moderately arcuate, the juxta-ocular sections subbullate and separated from the occipital margin proper by moderately deep sulci, the dorsal portion of the eyes considerably ventrad of these inflated sections; ocelli small, placed in an arcuate line; facial shield strongly transverse, the greatest depth contained about three times in the width of the same, dorsal margin obtuse-angulate, lateral margins oblique trun- cate; eyes moderately prominent, subovate in basal outline; antennae short, filiform. Pronotum elongate, not strongly inflated, the greatest width contained about four times in the length; lateral margins of the collar and shaft closely and regularly spinose with nearly as regularly placed intercalated spinulations ; collar having the cephalic margin strongly arcuate with the middle slightly flattened, lateral margins regularly expanding caudad to the well-rounded supracoxal dilation; shaft with the margins narrowing more abruptly caudad of the dilation than the collar expands to the same, thence caudad apparently subequal, but in reality very slightly expanding to the arcuate caudal margin, which is subtruncate mesad; transverse sulcus deep, median carina finely but decidedly indicated, present throughout the prothoracic length except for a very short distance 9 It is quite probable that Coptopteryx gayi Gigli-Tos {Zoolog. Jahrb., Abth. Syst., VIII, p. 805, 1895), listed without comment from Paraguay, is the same as the present form. In the reference given in the above text the accompanying description enables us to place the species without question, but in the Jahr- biicher case we have no such aid. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 289 cephalad. Tegmina broad-ovate, surface subcoriaceous as in all of the species of the genus ; costal margin strongly arcuate on the proxi- mal fourth, thence obliquely arcuato-truncate to the broad arcuate obtuse-angulate apex, sutural margin moderately arcuate; stigma hardly indicated; anal field elongate subpyriform, anal vein reaching the sutural margin about three-fourths the length of the same from the base. Wings not exceeding the tips of the tegmina. Supra- anal plate trigonal in form, lateral margins arcuato-bisinuate, apex slightly acute, median carina pronounced, sublamellate distad; cerci moniliform, short; subgenital plate slightly exceeding the supra-anal plate. Cephalic limbs (for the sex) quite slender; coxae about two- thirds as long as the cephalic femora, cephalic margin with six to seven recurved spines and numerous intercalated spinulations, caudal margin with the same character of armament, lateral margin with numerous spinulations, internal face of the coxae with numerous scattered points; cephalic femora subequal in length to the pronotal shaft, its greatest depth contained about six times in the length, external margin armed with five spines, internal margin armed with fourteen spines, of which only the penultimate and antepenultimate are markedlj'' smaller than the others, discoidal spines three in number; cephalic tibiae armed on the external margin with nine spines; on the internal margin with sixteen to seventeen spines exclusive of the apical claw; cephalic metatarsi slightly longer than the remaining tarsal joints. Median and caudal limbs similar to those of other species of the genus. General color burnt umber, washed with wood brown on the limbs, the tibiae and tarsi distinctly bice green in tone. Tegmina with the proximal two-thirds shining clove brown, the remainder dull wax yellow, the veins reticulate with umber. Eyes clove brown. Allotype: cT ; Sapucay, Paraguay. December 10, 1905. (William Foster.) [Acad. Nat. Sci. Phila.] Differing from the type in those characters which are sexual in the genus, the more important differences being here given. Fig. 4.— Cop- Size large; form elongate, slender. Ocelli large, topteryx placed in a triangle ; facial shield with the dorsal margin n sp'^Dor- arcuato-emarginate laterad. Pronotum with the great- sal outline est width contained four and a half times in the depth ^Natural of the same; lateral margins obscurely crenulate, this size.) more distinct on the collar than elsewhere. Tegmina slightly surpassing the apex of the abdomen, the greatest width 290 PROCEEDINGS OF THE ACADEMY OF [May, contained about* five and a half times in the length of the same; costal margin straight for the greater portion of its length, arcuate proximad and distad, apex narrowly rounded; costal field very narrow, from about the proximal fourth gradually narrowing dLstad; anal field elongate pyriform, the anal vein reaching the sutural margin not quite a third the distance from the base. Wings ample, the greatest width contained slightly more than twice in the length of the same; apex rotundato-acuteangulate, separated from the peripheral margin by a distinct obtuse-angulate emargination; anterior field narrow. Supra-anal plate broadly trigonal, of similar form to that of the female; subgenital plate broad, the distal extremity of the margin with a slight obtuse-angulate emargination. Limbs similar to those of the female, but slenderer. General color prout's brown, becoming isabelline on the cephalic limbs and greenish on the caudal ones. Tegmina strongly washed with liver brown, costal field with the veins buffy aside from the subcoriaceous portion adjacent to the humeral trunk, which is of the general tegminal color. Wings infuscate with bistre, the cross veins white, greater portion of the costal margin and a small area at the base of the wing claret brown. Measurements. Female (type). Male (allotype) . Length of body : 82 . mm. 70 . mm. Length of pronotum 25.5 " 21. Greatest width of pronotum 6.5 " 4.7 " Length of tegmen 12.5 " 50.5 " Greatest width of tegmen 7. " 9. " Length of cephalic femur 19.5 " 14. " In addition to the type and allotype, we have before us two male and three female paratypes. The specimen referred to by us (vide supra) from Rio Grande do Sul, Brazil, received from Saussure and determined by him as gayi, is clearly referable to this species. In size the Sapucay specimens show but little variation for this genus, while the color varies appreciably in intensity in the females and in the males to the extent noted in the paper quoted above. Coptopteryx gayi (Blanchard). 1851. Mantis Gayi Blanchard, in Gay, Hist. Fis. Polit. de Chile, Zool., VI, p. 21, Orth. pi. 1, fig. 5. [Chile.] 1851. Mantis crenaticollis Blanchard, ibid., p. 22. [Chile.] Chacras de Coria, Prov. de Mendoza. Elev. 930 meters. January 5, 1908; March 6, 1908; December 6, 1907. Two males, one female. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 291 Mendoza, Prov. de Mendoza. Elev. 767 meters. March 20, 1908; April 9.and 24, 1908. One male, two females. Potrerillos, Prov. de Mendoza. Elev. 1,368 meters. December 29, 1909. One female. A careful study of Blanchard's original descriptions of the above species leaves no room for doubt but that the two names were based on opposite sexes of the same species, gayi on the male and crenati- collis on the female. The present material agrees very fully with these descriptions and also shows that the species varies very considerably in size, the Mendoza male being very much smaller than the others of that sex. The original measurements and those of the present series are as follows : Length Length Greatest Length Length of Length of of of width of of cephahc caudal body. pronotum. pronotum. tegmen. femur. femur. ^ mm. mm. mm. mm. mm. mm. Original of gra?/i 44-48'" Mendoza 43.5 11.3 2.6 31.5 8. 14. Chacras de Coria 52.3 14. 3.3 41. 10.5 18.2 €hacras de Coria 54. 14.8 3.2 40. 11. 17.7 ? Original of crenaiicoMis 44 . " Mendoza 46. 13.2 4. 7.2 9.1 13. Mendoza 44.7 14. 4.1 8.4 10.5 13.8 Chacras de Coria 49.5 15.8 4.6 9. 12. 14.1 Potrerillos 54. 15. 5. 9. 12.5 16.2 The males before us agree with the original figure, although the tegmina and wings are very slightly less fuliginous. The small Mendoza male has the limbs colored exactly as in the original figure, while the other males have them more brownish, particularly the cephalic ones. The females are all of tones of brownish varying toward hoary gray brown and seal brown. The species is known to range from Chile (specifically Santiago, vide Philippi) east to Buenos Aires (Saussure), south to Bahia Blanca (Saussure). ■Coptopteryx constricta n. sp. Type: 9 ; Chacras de Coria, Province of Mendoza, Argentina. Elev. 936 meters. April 19, 1907. (P. Jorgensen.) [Acad. Nat. Sci. Phila., type No. 5,216.] The differential characters of this very distinct species are given in the keys. ^° Approximately as above — the original 22-24 lines. " Approximately as above — the original 22 lines. 292 PROCEEDINGS OF THE ACADEMY OF IMay, Size small (smallest in the genus) ; form moderately robust, abdo- men broad fusiform. Head broad trigonal, the depth contained about one and one-third times in the width; occipital margin moderately arcuate, appreciably indented at the sulci, more distinctly arcuate laterad of the same; ocelli small, placed in a depressed triangle; facial shield strongly transverse, the depth contained nearly three times in the width, dorsal margin obtuse-angulate, ventral margin nearly straight, two slight median bosses present; eyes hardly prominent, well rounded; antennae filiform, very short. Pronotum of the general form found in females of species of this genus, the width of the supracoxal expansion contained two and one-half times in the length of the pronotum; cephalic margin very slightly pro- duced, very narrowly rounded at the extremity, margins of the collar expanding caudad to the supracoxal expansion, margins of the shaft moderately constricted, regularly concave, caudal margin arcuate laterad, s-ubtruncate mesad, all of the lateral margins spinose, the spines of the margins of the shaft much longer than those elsewhere, distinct, more or less regular intercalated spines of minor length present on the same margins; transverse sulcus strongly impressed, shaft with a very distinct, but not high median carina. Tegmina very short, not more than half the length of the pronotum, broad ovate, costal margin strongly arcuate, apex subtruncate, sutural margin moderately arcuate; marginal field more than half the width of the remainder of the tegmen, anal field very long and narrow. Supra-anal plate transverse, trigonal, the margins laterad of the apex arcuate, apex obtuse-angulate; cerci simple, terete, not exceeding the supra-anal plate; subgenital plate compressed, rostrate. Ceph- alic coxse slightly more than two-thirds the length of the pronotum, dorsal and ventral margins with numerous distinct recurved denti-. form spines and intercalated spinulations, external margin with denticulate tubercles, internal face of the coxse with numerous tubercles arranged more or less regularly in longitudinal series; cephalic femora more than five-sixths the length of the pronotum, the greatest depth of the femur slightly more than a fourth the length of the same, dorsal margin nearly straight, ventro-external margin arcuate, armed with five short robust spines, internal margin with thirteen spines more or less alternating in length, the proximal spines the longer, discoidal spines three in number; cephalic tibiae (exclusive of apical claw) about half the length of the femur, armed on the external margin with eight spines, a considerable unarmed dias- tema at the base, internal margin armed with thirteen to fourteen 1913. NATURAL SCIENCES OF PHILADELPHIA. 295 spines increasing in length distad ; cephalic tarsi subequal in length to- the cephalic tibiae with claw, meta- tarsus slightly exceeding the re- maining tarsal joints in length. Median and caudal limbs of the usual type, but rather robust in pro- portion. General color pale apple green, the abdomen pale olive green, but possibly this is due to discolora- tion. Head with the upper face inclined toward yellowish, eyes olive. Tegmina with the base color of the discoidal and anal fields orange-ochraceous, the veins weak olive buff, finely outlined with chest- nut, the costal field and proximal portion of the discoidal and anal fields more or less uniformly deep maroon, the veins of the costal field outlined with pale salmon-buff, those of the discoidal and anal fields more olive buff. Proximal portion of the cephalic tibiae and distal portion of the cephalic femur washed with chrome yellow. Cephalic femoral and tibial spines ochre yellow tipped with seal brown. Allotype: cf ; Chacras de Coria, Province of Mendoza, Argentina. Elev. 936 meters. April 4, 1907. (P. Jorgensen.) [Acad. Nat. Sci. Phila.] Size small for the genus; form moderately elongate, but more abbreviate cephalad than usual in this genus. Head slightly more transverse than in the female, the occipital outline slightly less arcuate; ocelli large, placed in a triangle; eyes more prominent. Pronotum with the greatest width more than a third of the length, general form of the pronotum similar to that of the male, but with the margins entire or faintly crenulate instead of spinose; median carina but very faintly indicated. Tegmina ample, considerably surpassing the apex of the abdomen, the greatest width contained about four times in the length of the same; hyaline, with the vicinity of the humeral trunk coriaceous; costal margin arcuate proximad and distad, straight for the remainder of the length, sutural margin Fig. 5. — Coptopteryx constrida n. sp. Dorsal view of female (tj^pe). (X 2.) 294 PROCEEDINGS OF THE ACADEMY OF [May, strongly arcuate to the rotundato-obtuse apex, thence nearly straight to the anal field. Wing moderately broad, the greatest width contained about twice in the length, the apex well rounded; hyaline, except for a coriaceous strip along the costal margin ; anterior ulnar vein biramose. Cephalic median and caudal limbs as in the opposite sex. Supra-anal plate of similar form to ^fovteryx ^^at of the female; cerci elongate, moniliform; sub- constrida genital plate large, moderately produced, the distal saf Outline margin narrowly arcuato-emarginate. of male General color very pale apple green. Ocelli gamboge (X?.)^^ yellow; eyes mars brown; antennae ochre yellow. Tegmina and wings thalassino-hyaline with the coriaceous median trunk of the former ochraceous, the costal margin of the latter greenish. Proximo-ventral abdominal segments with a broad seal brown edging mesad on the distal margin. Median and caudal tarsi clouded with olive. Measurements. Female (type). Male (allotype). Length of body 28.5 mm. 36. mm. Length of pronotum 9. " 9. " Greatest width of pronotum 3.7 " 3. Length of tegmen .»... 4.8" 29 . 5 Length of cephalic femur 8. " 7.5 Length of caudal femur 8.7 " 11.9 In addition to the type and allotype, we have before us the following series: Chacras de Coria, March 29, 1907, one male; Mendoza, Province of Mendoza, April 11 and 20, 1908, one male, two females; La Paz, Province of Mendoza, elev. 504 meters, January 29, 1908, one male. Aside from the fact that the paratypic male is pale ochra- ceous in color, while all of the other specimens seen are greenish, the ' series presents no noteworthy differences. Miopteryx rustica (Fabricius). 1781. [Mantis] rustica Fabricius, Spec. Ins., I, p. 350. [Shores of Pata- gonia.] Misiones. April 19 and 30, 1910, September 9, 1909. (No. 7.) Three males. The present material fully agrees with Fabricius' original descrip- tion, which, though brief, satisfactorily characterizes the species. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 295 The second description given by Saussure^^ shows some points of difference from our material, and it is quite probable that he had another (Brazilian) species before him. Our specimens have no trace of a covering or overcapping projection of the front extending over the inferior ocellus, as described by Saussure, in fact there is no approach to a development of this sort of structure, which is so marked in Pseudomiopteryx and toward which Saussure considered rustica, as understood by him, to tend. The cephalic coxae are very finely serrulate instead of unarmed as stated to be by Saussure. One of our specimens is more decidedly infuscate than the others, being as dark as specimens of Pseudomiopteryx infuscafa, but this is apparently individual. *Paramusonia livida (Serville). 1839. Thespis livida Serville, Hist. Nat. Ins. Orthopt., p. 172. [Brazil.] Misiones. April 30 and May 3, 1910. (No. 5.) ''Flies at night." Two males. Aside from the type locality, this species has also been recorded from Sapucay, Paraguay, with material from which latter place the present individuals have been compared. Paramusonia seclusa n. sp. Type: cf ; Alto Pencosa, Province of San Luis, Argentina. Elev. 660 meters. December 20, 1908. (P. Jorgensen.) [Acad. Nat. Sci. Phila., type No. 5,213.] This species in general size is much the same as P. livida, but the form of the pronotum is very slender, more as in the other species of the genus, from all of which it differs markedly in the brevity of the same portion. Size medium (for the group), form moderately bacilliform. Head strongly transverse, the greatest depth contained about one and one-half times in the width; occipital margin arcuato-truncate between the transverse sulci, laterad of the same well rounded, hardly produced; ocelli very large, placed in a triangle; eyes very prominent, ovoid in form when seen from the side, prominent; an- tennae with the joints appreciably but very gradually increasing in length distad. Pronotum with the greatest width contained about four and one-half times in the length of the same; shaft distinctly broader than the collar and both subequal in width, the margins of the collar rounded at the cephalic extremity and slightly expanded caudad to the rotundato-obtuse supracoxal expansion, caudal ^ Miss. Scient. Mex., Rech. Zoolog., VI, p. 277. 20 296 PROCEEDINGS OF THE ACADEMY OF [May, extremity rouijded with a slight median truncation; lateral margins finely serrulate, median carina thin, decided and well elevated. Tegmina over twice the length of the pronotum, of the type found in other species of the genus. Wings exceeding the tegmina by about the length of the collar of the prono- tum, apex of similar form to that of the tegmina. Supra- anal plate elongate acute-lanceolate, considerably sur- passing the subgenital plate, carinate ; cerci nearly twice y 7 _p the length of the supra-anal plate, elongate monihform, r'am'usonia apex acute; subgenital plate with the distal margin seclma n ^^^ rounded, styles moderately long, well separated, sp. J-JorsS;! I'll • /-^^ 1 outline of Simple, the space between slightly emargmate. Leph- pronotum ^jj^ (^Q^se subequal to the length of the pronotal shaft, (X 2.) margins very finely serrulate; cephalic femur with the dorsal margin nearly straight, armed on the external margin with five spines, on the internal margin with thirteen spines, discoidal spines four in number; cephalic tibiae about two-fifths the length of the femur, armed on the external margin with five spines placed on the distal section of the margin, internal margin armed with seven to nine spines; cephalic metatarsus slightly longer than the remainder of the tarsal joints and subequal to the tibiae in length. Median and caudal limbs extremely slender, caudal metatarsus but slightly less than half of the caudal tibial length. General color fawn color, mottled, sprinkled, clouded and washed with hair brown and seal brown. Head strongly washed with the overlying color, the line of the occiput showing up as the clear base color, ocelli tawny olive, eyes mars brown. Tegmina pale brownish hyaline, the longitudinal veins prout's brown, the adjacent portions of the short cross veins of the same color, intercalated veins and remainder of cross veins cream color. Measurements. Length of body 32 . 5 Length of pronotum 7.8 Greatest Avidth of pronotum 1.5 Length of tegmen 18 . 5 Length of cephahc femur 6.2 Length of caudal femur 11. The type of this species is unique. Thesprotia vidua Saussure and Zehntner. 1894. Thesprotia vidua Saussure and Zehntner, Biol. Cent.-Amer., Orth., I, p. 170. [South America.] Misiones. January 3, 5 and 10, 1910; March 29, 1910; October 1913.] NATURAL SCIENCES OF PHILADELPHIA. 297 5, 1909; December 10, 1910. (No. 6.) ''At .light" and "flying at night." Nine males, one female. This series shows that there is a very slight amount of variation in the subhyaline character of the tegmina and wings of the male. One male has these appendages subinfumate, but between this and the other practically hyaline extreme are all intermediates. In size the male specimens agree very closely with the dimensions for that sex given by Giglio-Tos,i'' while the female is but a trifle under the type measurements. The only previous definite record of the species is that from San Francisco, Bolivian Chaco (Giglio-Tos). Subfamily VATIX.E. *Oxyopsis lobeter Rehn. 1907. Oxyopsis lobeter Rehn, Proc. Acad. Nat. Sci. Phila., 1907, p. 159, figs. 3, 4. [Sapucay, Paraguay.] Misiones. January 12, 1910; March 22, 1909; May 15, 1909; September 26, 1910. (Nos. 3 [cf] and 4 [9].) Two males, two females. This species was previously known only from the female sex. The present females are very similar to the typical specimens, the color of the tegmina being more uniform than in the type and in this respect more nearly resembling the paratype. The male sex may be recognized by the following summary of differences from the female sex. AUotype: cf ; Misiones, Argentina. Januarj^ 12, 1910. (P. Jor- gensen.) [Acad. Nat. Sci. Phila.] Size medium (compared with the female) ; form moderately elong- ate. Head more decidedly transverse than in the female; ocelli large, placed in a triangle; facial shield similar to that of the male, but more decidedly transverse ; antennae slightly longer than the head and pronotum together. Pronotum differing from the female in such respects as found in other species of the genus, the greatest width of the supracoxal expansion contained five times in the length, the greater portion of the collar and shaft subequal in width, the mod- erately marked expansion well rounded; lateral margins sparsely crenulate; median carina and transverse sulcus as in the female. Tegmina slightly more than twice the length of the pronotum, apex rotundato-rectangulate, hyaline with the marginal field coriaceous. Wings surpassing the tips of the tegmina by about the length of the « Boll. Mus. Zool. Anat. Camp. Torino, XII, No. 302, pp. 14, 15. 298 PROCEEDINGS OF THE ACADEMY OF [May, collar of the pronotum, form of the apex of the same similar to that of the female. Supra-anal plate transverse trigonal, with the immediate apex narrowly emarginate; cerci moderately elongate; subgenital plate considerably elongate, the margins converging distad, styles rather short, closely placed, depressed. Cephalic limbs in structure and armament similar to those of the female, but slenderer and with the spines of the external margin of the tibise sometimes numbering eleven. Median and cephalic limbs similar to those of the female, but slenderer. General coloration essentially as in the female with the following exceptions: base color more apple green than oir green; region of the occiput washed with mars brown, the eyes of the same color; tegmina hyaline with the coriaceous marginal field apple green, narrowly edged with cream color, costal margin of the wings and the apex of the same weakly washed with apple green, faintly edged with cream; pronotum ochraceous buff on the shaft (probably due to drying out) ; median and caudal limbs pale clay color distad passing into pale oil green. Measurements. Length of body 45 . 5 mm. Length of pronotum 14. " Greatest width of pronotum 2.7 " Length of tegmen 32 . 5 " Greatest width of tegmen 6.5 " Greatest width of marginal field 2. " Length of cephalic femur 9.8 " Length of median femur 9.2 " Length of caudal femur 12.5 " Parastagmatoptera unipunctata (Burmeister). 1838. M[antis] unipunctata Burmeister, Handb. der Entom., II, Abth. II, pt. 1, p. 540. [Brazil.] Buenos Aires. May, 1911. One female. Embarcacion, Salta. April, 1911. One male. This species has been recorded from Buenos Aires (Burmeister) in addition to the type locality, while a single female in the collection of the Academy is labelled "Parana River." Burmeister states that this is the most abundant species of Mantis about Buenos Aires. Stagmatoptera hyaloptera (Perty). 1830-1834. Mantis hyaloptera Perty, Delect. Anim. Artie, p. 117, pi. 23, fig. 6. [Amazon River.] Jujuy, Province of Jujuy. April, 1911. One male. 1913.] NATURAL SCIENCES OF PHILADELPHIA, 299 Tucuman, Province of Tucuman. July, 1911. "Very common." One male. This form has been recorded from San Lorenzo, Jujuy (Giglio-Tos) and Cordoba, Argentina (as the synonymous luna), as well as north- ward as far as Guiana. Stagmatoptera precaria (LinnEeus). 1758. [Gryllus (Ma7itis)] precarius Linnaeus, Syst. Nat., Xth ed., I, p. 426. ["America; Africa."] Mision€s. April 18, 1909. One male. Previous Argentine records of this species are from Tucuman and Catamarca (Burmeister) and Buenos Aires (Serville). Burmeister stated that he had not taken the species south of Rosario. The same author notes that the individuals from the provinces (i.e., Tucuman and Catamarca) average two to two and one-half inches in length, while tropical Brazilian individuals are three to three and one-half in length. The present specimen shows the following measurements: length of body, 72 mm.; length of pronotum, 24; greatest width of pronotum 5 ; length of tegmen, 53 ; greatest width of tegmen, 14.5; width of marginal field, 4; length of cephalic femur, 16. Zoolea lobipes (Olivier). 1792. Mantis lobipes Olivier, Encycl. Meth., Ins., VII, p. 637. ["Tran- quebar; coast of Coromandel."] Misiones. December, 1908. One male. This genus and species was previously known from Argentina only by a single record from San Lorenzo, Jujuy (Giglio-Tos). The published records show the range to extend from the Guianas west to Peru and south to the northern edge of the Argentine Republic. *PhyllovateS iheringi (Saussure and Zehntner). 1894. Theodytes iheringi Saussure and Zehntner, Biol. Cent.-Amer., Orth., I, p. 193. [Rio Grande do Sul, BrazU.] Misiones. November 24, 1909; November, 1910. (No. 8.) Two females. This species was previously known only from the original reference. Giglio-Tos^^ has recorded the allied P. paraUela, under the synonymic name Theodytes surinamensis, from Buenos Aires. ^'Boll. Mus. Zool. Atiat. Comp. Torino, IX, No. 184, p. 4. 300 PROCEEDINGS OF THE ACADEMY OF [May, Family PHASMIDiB. Subfamily PYGIRHYNCHIN^. * Canuleius ^^ inermis Redtenbacher. 1906. C[amdeius] inermis Redtenbacher, Die Insekt. Fam. Phasmiden, p. 68, pi. II, figs. 1, 2. [Theresopolis and Espirito Santo, Brazil.] Misiones. November 2, 1910. One female. This specimen is considerably damaged, so that the characters of the caudal limbs cannot be verified. Subfamily ANISOMORPHIN.E. Agathemera millepunctata Redtenbacher. 1906. A[gathemera] millepunctata Redtenbacher, ibid., p. 89, [Carmen de Patagones, Prov. of Buenos Aires, Argentina.] La Paz, Prov. of Mendoza. Elev. 504 meters. December 15, 1908. One female. This specimen is slightly smaller than the original measurements, but otherwise it agrees fully. The species is very distinct from A. crassa, with material of which from Cruz del Eje, Prov. of Cordoba, the present specimen has been compared. *Aiii80inorpha dentata St&l. 1875. A[nisomorpha] dentata StS,l, Recens. Orthopt., Ill, p. 95. [Santa Catharina, Brazil.] Misiones. January 3, 1910; November 2, 1910. Two females. These specimens are somewhat smaller than the measurements given by Stal and Redtenbacher, but are otherwise quite typical of the species. This is the first record of the species from Argentina, the previous ones, in addition to the type locality, being Matto Grosso, Brazil, Paraguay and Santa Cruz de la Sierra, Bolivia. Subfamily PSEUDOPHASMINiE. *Paraphasma marginale Redtenbacher. 1906. P[arap}iasma\ marginale Redtenbacher, Die Insekt. Fam. Phasmiden, p. 115. [Santos, Minas Geraes, Rio de Janeiro, Goyaz, Brazil; Paraguay.) Misiones. January 5, 1911; December 5, 1909. (No. 9.) One male, one female. These specimens agree very well with the description of the species, which is the same as that recorded by the author from Sapucay, Paraguay, as Olcyphides fasciatus (female) and 0. hopii (male).^^ 15 The individual from Sapucay, Paraguay, recorded by us (Proc. Acad. Nat. Sci. Phila., 1907, p. 161) as Ceroys coronatus (Thunberg) belongs to the genus Canuleius, and we tentatively refer it to C. similis Redtenbacher {ibid., p. 68), a very closely related form described from Theresopolis, Brazil. 16 Proc. Acad. Nat. Sci. Phila., 1907, p. 165. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 301 Redtenbacher considered marginale a close ally to the congeneric fasciatum, from which it was separated by the lineate femora. Gray's Phasma hopii was unknown to him and accordingly placed doubtfully under the genus Stratocles. The original description of fasciatum gives us no clue to the color of the femora. The presence or absence of the lateral thoracic line of yellowish, the slightly annulate antennae and the differences in the tegminal protuberance used by us to separate the Sapucay material into hopii and fasciatus have been shown by Redtenbacher to be individual in character. The localities given in the original description, with Sapucay, Paraguay, are all that were previously known. Subfamily CLITUMNIN.^. *Steleoxiphus oatastates Rehn. 1907. Steleoxiphus catastates Rehn, Proc. Acad. Nat. Sci. Phila., 1907, p. 163, figs. 5, 6. [Sapucay, Paraguay.] Misiones. January 29, 1911; March 13, 1909; December 14, 1910. (Nos. 1, 2 and 8.) Two adult females, one immature male, one immature female. The immature male shows conclusively that this genus is not the opposite (female) sex of Paraleptynia Caudell, which was suggested as a possibility in the original description of Steleoxiphus. The character of the antennae, form of the head and proportions show the two to be generically distinct, and in these respects the two sexes are very similar. The immature male and female, both taken on December 14th, are similar in size, being somewhat more than half the length of the adults. The anal segment of the male is compressed, carinate dorsad, more strongly so distad, the distal margin obtuse-angulate emarginate; supra-anal plate very minute, trigonal; cerci more than half the length of the anal segment, crassate, subcylindrical, apex subacute; subgenital plate hardly reaching the apex of the anal segment, apex narrowly rotundato-subtuberculate. The immature female has the subgenital operculum but slightly shorter proportionately than it is in the adult. XIPHOPHASMA" n. gen. A member of the Clitumninae and related to Steleoxiphus Rehn and Paraleptynia and Ceratiscus Caudell. From Steleoxiphus it can readily be separated by the bispinose and broader head, the more abbreviate metatarsi and the depressed and abbreviate antennae; " From i-Kpog, sword, and Phasma. 302 PROCEEDINGS OF THE ACADEMY OF [May, from Paraleptijnia and Ceratiscus the new genus differs in the spinose head, also from the former in the more abbreviate antennse and from the latter in the narrower head, more abbreviate metatarsi and non-lobate limbs. Head bispinose ; greatest width of the head less than the length of the same; antennae short, composed of fifteen joints, the proximal longer than broad, the next subquadrate, the third subequal to the first in length, the fourth transverse, the remainder longitudinal and tapering, the fifth and sixth less longitudinal than the succeeding ones, all depressed. Median segment longitudinal, subequal to the head in length. Cerci of female terete; subgenital plate of female greatly elongate, lanceolate, compressed. Limbs non-lobate; tarsi abbreviate, in no case a fourth the tibial length ; metatarsi of the cephalic limbs slightly more than half the length of the tarsi, of the other 'limbs a half or less than a half the length of the same. Type: X. missionum n, sp. Xiphophasma missionum n. sp. Type: 9 ; Misiones, Argentina. December 18, 1910. (No. 7.) (P. Jorgensen.) [Acad. Nat. Sci. Phila., type No. 5,214.] Size large; form very elongate. Head with the greatest width contained one and one-half times in the length of the same; paired horns placed between the caudal portions of the eyes, slightly diver- gent and inclined slightly cephalad; eyes not at all prominent, in fact slightly recessed, in outline nearly circular; antennse as described ^. „ v-Li. under the genus, their length about equal to Fig. 8. — Xiphophasma n i , , ^ ^ ^T i- -, missionum n. gen. that of the head and half of the pronotum; and sp. Lateral out- occipital margin with three moderately dis- Ime of head of tvpe. ... . ( X 2.) ~ tmct indentations, the whole head narrowing caudad. Pronotum with its length subequal to that of the head caudad of the eyes, longitudinal, the median width very slightly greater than half of the length ; the lateral margins sinuate dorsad of the insertion of the coxae. Mesonotum about five and a half times the pronotal length, subequal in width in the greater portion of its length, faint traces of a median carina present. Meta- notum (including median segment) nearly four-fifths the mesonotal length, similar in structure to the mesonotum; medium segment not separated from the metanotum proper by a transverse sulcus. Abdomen with segments one to seven longitudinal, progressively increasing in length distad, eighth segment longitudinal, but little 1913.] NATURAL SCIENCES OF PHILADELPHIA. 303 more than half the length of the seventh segment, ninth segment distinctly longitudinal, slightly longer than the eighth segment, marinate, distal margin rectangulate-emarginate mesad, rounded laterad; supra-anal plate rectangulate, merely the apex extending caudad of the ninth segment; cerci acute, terete, not a third the length of the ninth dorsal segment; subgenital plate enormously elongate, the length equal to that of the five proximal abdominal segments, of this length two-thirds is distad of the real apex of the abdomen, V-shaped in section, compressed, acute, carinate ventrad. Cephalic femur longer than the pro- and mesonotum together, proximal flexure pronounced, carina subcristate; cephalic tibiae slightly exceeding the femora, slender, moderately compressed; cephalic metatarsi slightly longer than the remainder of the tarsal joints. Median femora very slightly shorter than the mesonotum; median tibiae very slightly longer than the femora; metatarsi slightly Fig. 9. — Xiphophasma missionum n. gen. and sp. Lateral outline of apex of abdomen of type. (X 1|.) shorter than the remainder of the tarsal joints. Caudal femora reaching to the distal margin of the fourth abdominal segment; caudal tibiae hardly longer than the femora; caudal metatarsi very slightly longer than the remainder of the tarsus. General color burnt umber, the head, pronotum, cephalic half of the mesonotum, apex of the abdomen and the limbs dusted more or less thickly with hoary white; antennae seal brown; eyes tawny olive. Measurements. Length of body 118 . mm. Length of head 7.8 " Length of pronotum 4.8 " Length of mesonotum 27. " Length of metanotum (including median segment) 21 .5 " Length of cephalic femur 35.5 " Length of median femur 26.3 " Length of caudal femur * 30.5 " Length of subgenital plate 41.5 " The type of this very interesting genus and species is unique. 304 PROCEEDINGS OF THE ACADEMY OF [Ma\r,. Family AORIDID^. Subfamily ACRYDIIN^. Prototettix lobulatus (Stll). 1860. Tetrix lobulata St^l, Kong. Svenska Freg. Eugenies Resa, Zool., I,, p. 347. [Rio Janeiro, Brazil.] Misiones. April 5 and May 20, 1910. (No. 23.) One male, one female. Embarcacion, Prov. of Salta. April, 1911. One male. The present species has- been recorded by Bolivar from Argentina without definite locality. *Apotettix bruneri Hancock. 1906. ApoteUix bruneri Hancock, in Bruner, Proc. U. S. Nat. Mus., XXX, p. 614. [Paraguay.] Embarcacion, Prov. of Salta. April, 1911. One male. The only other exact record is of the occurrence of the species at Puerto Bertoni, Paraguay (Rehn), with the female from which place the present specimen has been compared. Tettigidea paratecta n. sp. Type: 9 ; Misiones, Argentina. February 1, 1911. (P. Jor- gensen.) [Acad. Nat. Sci. Phila., type No. 5,217.] Belonging to the section of the genus including chichimeca Saussure, tecta Morse, annulipes Bruner and scudderi Bolivar. From chichimeca and scudderi the present form can be readily distinguished by the tectate dorsum, scudderi also having the femora narrower; from annulipes the new form can be separated by the non-glabrous surface and the blunter and much less produced vertex, no approach being found to the type of T. prorsa, the vertex of which that of annulipes is said to greatly resemble. From tecta, its closest ally, paratecta can be separated by the more elevated and arcuate median carina of the pronotum, the more regularly angulate cephalic margin of the same, the less decidedly lineato-rugulose dorsum of the pronotum, the less projecting vertex, the less thickened margins of the frontal costa,. the more lanceolate tegmina and more finely sculptured pagina of the caudal femora. Size medium (for the genus); form robust; surface rather evenly chagrinous. Head with the greatest width contained about one and one-third times in the depth of the same; fastigium with the carina regularly arcuate when seen from above, obsolete immediately laterad of the median carina, width of the fastigium subequal to that of one of the eyes; median carina of the fastigium prominent, pro- jecting moderately cephalad of the lateral carina of the fastigium, when viewed from the side strongly arcuate and passing into the 1913. NATURAL SCIENCES OF PHILADELPHIA. 305 facial outline, which is arcuate with a slight sinuosity at the ocellus; facial forks moderately separated, hardly diverging ventrad; eyes considerably shorter than the depth of the infra-ocular portion of the genffi, trigono-reniform in basal outline, moderately prominent when seen from the dorsum. Pronotum tectate in section, the median carina well elevated, in longitudinal section regularly arcuate with the very faintest interhumeral flattening; cephalic margin of the pro- notum almost rectangulate, the immediate angle very fine, reaching to the base of the fastigial carina of the vertex; humeral angles not at all prominent, rounded very broad obtuse-angulate ; apex reaching Pig 10,— Tettigidea parateda n. sp. Lateral outline of type. (X 8.) to the base of the genicular arches of the caudal femora, in general form acute, the immediate apex blunted, slightly subulate; surface of the dorsum with a number of very weak longitudinal lines, these most numerous in the humeral region and all slightly latero-caudad in general trend; lateral lobes with the greatest dorsal length slightly greater than the greatest depth, with several glabrous areas dorsad, caudal margin oblique-truncate, ventro-caudal angle acute, humeral sinus very slight, rectangulate. Tegmina very small, in length not exceeding that of the ventral margin of \ / the lateral lobes of the pronotum, elongate-lanceolate, the greatest exposed width contained nearly four times in the length of the same, apex very narrowly rounded. Cephalic and median limbs not at all lobate. Caudal femora nearly equal to three-fourths of the length of the pronotum, robust, moderately inflated, the greatest width contained slightly more than twice in the length of the same, pagina very finely sculptured; caudal tibiee moderately robust, slightly expanded distad. General color seal brown with the dorsum largely 306 PROCEEDINGS OF THE ACADEMY OF [May, fawn color and the venter pale ochraceous. The pale dorsal color is clouded with the general color except for a clear section cephalad on the pronotum and a reversed V-shaped section which has its apex on the median carina between the shoulders, extending laterad over the dorsum of the pronotum and the dorsal and lateral faces of the caudal femora; median carina of the pronotum beaded with about seven regularly placed areas of the dark general color. Median and cephalic limbs with more or less complete annuli of the dark general color on pale ochraceous. Eyes mars brown. Measurements. Length of body 9.6 mm. Length of pronotum .9. " Greatest dorsal width of pronotum 3. " Length of tegmen. 1.7 " Length of caudal femur 6.5 " The type of this species is unique. * Tettigidea arcuata Bruner. 1910. Tettigidea arcuata Bryner, Annals Carneg. Mus., VII, p. 135. [Chapada, Brazil.] Misiones. July 7, 1910. (No. 23.) Male and female ''in copula." These specimens are typical of the form, which was taken at Chapada in April, May, and June. Tettigidea multicostata Bolivar. 1887. T[ettigidea] multicostata Bolivar, Ann. Soc. Entom. Belg., XXXL p. 299. [Brazil.] Misiones. April 4, 1910. One male. We have before us individuals from Caiza, Bolivian Chaco, Salta and Tucuman, Argentina, and Sapucay, Paraguay, with which the Misiones specimens have been compared. The species is now known to range from Brazil (specifically Corumba [Bruner]) and the Bolivian Chaco (Caiza and San Francisco [Gigho-Tos]), south to Tucuman [Bruner] and across Paraguay to the Misiones territory. Subfamily PROSCOPIN.^. Tetanorhynchus borellii Giglio-Tos. 1897. T[etanorhynchus] borellii Giglio-Tos, Boll. Mus. Zool. Anat.-Comp., Torino, XII, No. 302, p. 18. [Caiza and San Francisco, Bolivian Chaco; San Lorenzo, Jujuy, Argentina.] Embarcacion, Prov. of Salta. April, 1911. Two males, one female. Jujuy, Prov. Jujuy. April, 1911. Two females. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 307 The above-listed specimens have been compared with a pair of cotypes in the collection of the Academy, received from Dr. Borelli, taken at Caiza and San Lorenzo, and found to be inseparable. One Jujuy female undoubtedly had an injury to the rostrum which retarded the development of the characteristic clavate expansion of the same, although the almost equally characteristic cruciform sec- tion of that portion is decided. The original localities and those given above are all we know for the species. Cephalocoema costulata Burmeister. 1880. Cephalocf£tna costulata Burmeister, Abhandl. Natui-forsch. Gesell., Halle, XV, heft I, p. 9, pi. 1, figs. 5-7. [Argentina.] Misiones. October 18, 1909; December 12-18, 1909; January 24, 1910; March 12-18, 1909; March 24, 1910; April 4-5, 1910. (Nos. 3, 4 and 5.) Three adult males, ten adult females, one imma- ture female. These specimens average slightly larger than individuals from Cordoba and Carcarana, Argentina, but smaller than Sapucay, Paraguay, representatives. The number of spines on the dorso-lateral margin of the caudal tibise is very unreliable as a diagnostic character, as an examination of the present series, which unquestionably repre- sents but a single species, shows the number to range from eight to twenty, while in a single specimen the disparity in the number of spines on these margins of the two tibiae is as much as four (eight and twelve) . This species is found over a considerable area, having been recorded from as far north as Matto Grosso, Brazil (Bruner), and Aguiarenda, Bolivian Chaco (Giglio-Tos) , south to the Rio Colorado (Bruner), east to Montevideo, Uruguay (Brunner), west to Tucuman, Argen- tina (Giglio-Tos). Cephaloccema lineata Brunner. 1890. Cephalocoema lineata Brunner, Verhandl. K.-K. Zoolog.-botan. Gesell., Wien, XL, p. 118, pi. V, fig. 11. [Mendoza, Argentina.] Mendoza, Prov. of Mendoza. Elev. 767 meters. February 5, 1909. One male. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. February 24, 1908. One female. Potrerillos, Prov. of Mendoza. Elev. 1,368 meters. February 20, 1908. Two females. This constitutes the second report of the occurrence of this very remarkable species. As a male was previously unknown, a few notes on the points of difference from the female may be of interest. 308 PROCEEDINGS OF THE ACADEMY OF [May, Size rather large; form extreme elongate. Proportions of the head essentially as in the female; eyes more prominent. Pronotum much slenderer than in the female, the portion cephalad of the insertion of the cephalic limbs narrower than the portion caudad of the same, expansion at the cephalic margin very decided as well as that at the insertion of the limbs. Dorsum of the pronotum, mesonotum and metanotum more or less distinctly tricarinate mesad, the carinse being closely placed, traces of the same present in the female. Supra-anal plate short, lanceolate, apex acute; cerci extremely short, simple; subgenital plate elongate-lanceolate, subequal in length to that portion of the pronotum caudad of the insertion of the limbs, strongly compressed, acute. Limbs very slender, the median and cephalic almost filiform, the caudal femora almost imperceptibly inflated. Measurements. Length of body 103 . mm. Dorsal length of head 25 . Length of pronotum 23 . Width of pronotum at the insertion of limbs 2 . Length of mesonotum and metanotum 6.2 Length of cephalic femur 22 . Length of median femur 21.5 Length of caudal femur -. 35 . Length of subgenital plate 1 1 . Astroma compactum Brunner. 1891. Astroma compactum Brunner, Verhandl. K.-K. Zoolog.-botan. Gesell., Wien, XL, p. 120, pi. V, figs. I2a-b. [Mendoza, Argentina; Santiago, Chile.] Alto Pencosa, Prov. of San Luis. Elev. 660 meters. February 2, 1908; December 22, 1908. One male, one immature female. La Paz, Prov. of Mendoza. Elev. 504 meters. January 29, 1908. One female. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. March 18, 1907; December 6, 1907; January 15, 1908; February 4-11, 1908; March 6, 1908. One male, six females, two immature females. Mendoza, Prov. of Mendoza. Elev. 767 meters. November 10-15, 1907; December 13-18, 1907; January 5, 1908; March 27-29, 1908; April 12 and 24, 1908; May 7 and 13, 1908; June 5-18, 1908. Ten males, nineteen females, six immature individuals of both sexes. Blanco Encalada, Prov. of Mendoza. Elev. 1,068 meters. Feb- ruary 16, 1908. One female. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 309 San Ignacio, Prov. of Mendoza. Elev. 1,235 meters. March 15 .and 22, 1908; April 5, 1908. Four males, two females. This very extensive series is of considerable interest, demonstrating as it does that the species is undoubtedly common within its range and that considerable variation in size and sculpture occurs. The size extremes of the series are: length of body, d^ 36.7-45.5 mm., 9 63.5-82.5; length of head, d' 5.3-6.7, 9 8.5-10; length of rostrum, cf 1.2-1.5, 9 2.5-3.8; length of pronotum, cT 7.2-9.8, 9 11.2-13.8; length of tegmen, 9 2.5-2.7; length of cephalic femur, cf 7.1-9, 9 9.3-12.6; length of caudal femur, d' 14.8-18, 9 20.8- 27.5. Both extremes of the male sex are from Mendoza, the minimum of the female sex from Blanco Encalada and the maximum from Chacras de Coria. The wings of the female vary in the shape of the exposed coriaceous portion, this ranging from broad ovate to elongate elliptical, the size variation of the same being considerable and in no way correlated with the general size. The rostrum exhibits a very appreciable amount of variation in the female, ranging from a length hardly greater than that of the eye to one and one-half times the length of the same. The spiniform tubercles on the cephalic and caudal margins of the pronotum and the spiniform lobes of the mesonotum vary considerably in prominence, the latter also in the degree of their erection, being vertical in some and decidedly inclined caudad in other individuals. The linear rugosities of the body show some variation in prominence which does not appear to be correlated with the development of the tubercles and lobes. The only evidence of geographic variation seen in the series is that noticed in the slenderer pronotum of the male and immature female from Alto Pencosa, a locality somewhat removed from those at which the other specimens were taken. The color varies from dull brown through gray-browns to hoary white, but how much of the brownish coloration is due to discolora- tion cannot be determined. Some individuals are partially blackish, but this is unquestionably due to discoloration, as the specimens were not eviscerated. The following diagnosis shows the features in which the previously undescribed male differs from the female. Size small; form more elongate than in the other sex; surface much smoother than in the female. Head with its dorsal length two-thirds that of the pronotum, considerably constricted caudad of the eyes, the whole head considerably elevated cephalo-dorsad ; fastigium 310 PROCEEDINGS OF THE ACADEMY OF [May, horizontal, much shorter than in the female, hardly more than half the length of the eye, apex very blunt; eyes very prominent, ovate in outline, their length more than half that of the proximal portion of the dorsum of the head; antennae slightly longer than the eye^ five-jointed. Pronotum subcylindrical, subequal in width except for the expansion at the cephalic margin and the insertion of the cephalic limbs, the former margin truncate mesad with a pair of low flanking tubercles and obliquely truncate laterad; width at the insertion of the cephalic limbs contained two and one-half times in the length of the pronotum, caudal margin non-tuberculate; surface of the dorsum without the prominent ridges found in the female. No tegmina or wings present. Caudal margin of the mesonotum non-tuberculate. Abdomen with the medio-longitudinal carina indicated only caudad; supra-anal plate sublanceolate, apex well rounded, a prominent medio-longitudinal sulcus present on the proximal two-thirds; cerci simple, styliform, short, blunt; subgenital plate moderately rostrate, subacute, carinate ventrad, dorsal face of the apex flattened, sulcate, the apical margin slightly cleft. Limbs slightly more robust than in the female; caudal femora slightly more bullate, the tips of the femora reaching to the distal margin of the sixth abdominal segment. Measurements. Length of body 40 . mm. Length of pronotum 8.3 " Greatest width of the pronotum at the insertion of the cephalic limbs 3 . Length of remaining thoracic segments 6 . Length of cephalic femur 7.3 Length of median femur 7 . Length of caudal femur 15.5 The only information with the specimens on the habits of the species is on several Mendoza individuals labelled ''On Larrea." This is apparently Covillea (Larrea of authors) divaricata, a shrub which Mr. Jorgensen tells us constitutes an important part of the vegetation of the Mendoza region. It is probable that the insect spends a con- siderable part of its life on the twigs of the bush, which it simulates very well and where it would be well protected. This proclivity is found in certain species of Orthoptera occurring on the allied C tridentata of the Lower Sonoran deserts of North America. Nine of the pairs in the series were taken "in copula." The earliest seasonal date that is represented by adults is November 15, 1913.] NATURAL SCIENCES OF PHILADELPHIA. 311 a single male from Mendoza bearing that date, the latest June 18, while the first date for a pair in copula is March 6. *Astroma foliatum Brunner. 1890. Aslroma foliatum Brunner, Verhandl. K.-K. Zoolog.-botan. Gesell., Wien, XL., p. 121, pi. V, fig. 12c'8 [Arannias, Chile.] La Paz, Prov. of Mendoza. Elev. 504 meters. Januaiy 29, 1908; December 15, 1908. One male, two females. Alto Pencosa, Prov. of San Luis. Elev. 660 meters. December 22, 1908. One nearly adult female. The present specimens are referred to this species with some uncertainty, as certain points of difference from the original descrip- tion are evident, although how much weight to allow these differences is a matter of question, as series of the allied A. chloropterum and compadum show considerable variation in size and sculpture. Brunner knew" only the female of the species, and his type specimen was considerably smaller than either of the adult females before us, although larger than the immature one. This size difference is, however, about equalled in our series of compactum. Brunner used the serrulate or smooth condition of the margins of the ovipositor jaws as one of the major division characters for the species of the genus, placing chloropterum and compactum in the serrulate section and granulosum and foliatum in the other. As a matter of fact, chloropterum is very similar to foliatum in having verj^ weak serrulations on the margins of the dorsal valves, while com- pactum has the serrulations very decided. Aside from size, the description oi foliatum, based on the female sex, agrees with that sex of the present series in all the characters except the number of spines on the margins of the caudal tibiae and in the character of the caudal margin of the pronotum. The number of spines is unimportant, as a count shows they run from nine to twelve on the external margin (Brunner gives thirteen) and from nine to eleven on the internal (Brunner gives eleven). One specimen has nine on each of the margins and another has a difference of two spines on the same margins of the two tibiae. The pronotum is described as "margine antico et postieo in lobos binos foliatos, obtusos productis," and in the present material these margins are strongly bispinose, but hardly developed in foliate lobes. 18 Given in error as "Fig. 12B" in the text, but the explanation to the plates shows that "B" refers to compactum and "C" to foliatum. 21 312 PROCEEDINGS OF THE ACADEMY OF [May, The measurements of the present specimens are as follows : Male. Female. Female. Imm. Female. La Paz. La Paz. La Paz. Alto Pencosa. mm. mm. mm. mm. Length of body 60. 101. 93. 67. Length of head 10.8 19. 15.5 12.2 Length of rostrum 5.8 11.8 8.2 6.2 Length of pronotum 12.5 20.7 19.5 13.2 Length of tegmen 4. 3.5 2. Length of cephalic femur 10.5 14.3 13. 9. Length of caudalfemur 20.5 32.5 30. 19.2 As the male has not been previously reported, the differential characters of that sex may be of service.^^ Size rather small; form very elongate. Head very similar to that of the female, but the eyes are more prominent and the depth of the head caudad of the eyes is subequal for a greater distance and not regularly increasing in depth as in the female. Pronotum with the greatest (supra-coxal) width contained about five times in the length of the same; cephalic margin with two low nodes instead of high spiniform tubercles; caudal margin unarmed; no lateral carinse present as in the other sex; the general form of the pronotum more subequal in width and not gradually enlarging caudad as in the female. No trace of tegmina and wings. Narrowest portions of the mesonotum and metanotum subequal in width to the pronotum ; mesonotum with no spines on the margin. Abdomen not multi- carinate, a single median carina indicated; supra-anal plate lanceo- late, the apex not rounded, surface sUghtly excavate, not sulcate; cerci simple, tapering, very short, blunt; subgenital plate greatly produced, rostrate, subdeplanate, dorsal surface sulcate, apical margin strongly divided, hardly carinate ventrad. Limbs slenderer than in the female; caudal femora reaching to the caudal margin of the fifth abdominal segment. Subfamily ACRIDIN^. *Hyalopteryx rufipennis Charpentier. 1845. Hijalopteryx rufipennis Charpentier, Orthopt. Desc. et Depict., tab. 46. [Brazil.] Misiones. January 1, 1910; January 3, 1909; December 10-12, 1909; December 12, 1910. (No. 13.) Nine males, two females. These specimens are quite uniform in color and when compared " The data here given are from the La Paz male measm-ed above, this being the allotype of the species. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 313 with the allied asinus Rehn and specularis Bruner are found to be quite distinct. The males show some variation in size, the extremes of tegminal length being twenty-eight and thirty millimeters. The information with several specimens taken December 12, 1909, and 1910 is to the effect that the species was ''very common in the Campo." Bruner has 'recently recorded a single' female specimen of this species from Chapada, Matto Grosso, Brazil, but otherwise it has not been correctly recorded since the original description. The present author recorded specimens of the then undescribed specularis as this species, but later corrected his error. Eutryxalis gracilis (Giglio-Tos). 1897. Hiyalopteryx] gracilis Giglio-Tos, Boll. Mus. Anat. Comp., Torino, XII, No. 302, p. 22. [San Lorenzo, Jujuy, Argentina; Caiza, BoUvian Chaco.l Misiones. January 11; December 14, 1910. (No. 24.) Two males, two females. Buenos Aires. February 20, 1909; May 1, 1907. Four females. One female has the dorsal aspect purplish, similar to an individual of the same sex from Carcarana, Argentina. The species has been recorded from as far north as Caiza, Bolivian Chaco, and Sapucay, Paraguay, south to the Rio Colorado, west to Jujuy, Argentina, east to the Rio de la Plata and the Misiones. Truxalis brevicornis (Johannson). 1764. Gryllus brevicornis Johannson, Amoen. Acad., VI, p. 398. [North America (Pennsylvania^").] Misiones. February 20, 1909; April 20, 1909. Two males. Buenos Aires. February 14-26, 1909; March 7, 1909. Five females. A widely distributed American sj^ecies found as far south as the Rio Colorado of Argentina. Orphula pagana (Stai). 1860. Gomphocerus {H yalopteryx) paganus St&l, Kong, Svenska Freg. Eugenics Resa, Zool., I, Ins., p. 339. [Rio Janeiro, Brazil.] Misiones. March 27, 1909; April 30, 1910; May 5-6, 1910; December 12, 1910. (Nos. 7 and 8.) Ten males, eight females. This interesting series has been compared with thirteen other individuals of the genus from localities in Brazil and Paraguay. It is evident that considerable individual variation in several charac- ^ The original material was credited to DeGeer, and he subsequently says {Mem. Ins., Ill, p. 499) he received the species from Pennsylvania, sent by Acrelius. 314 PROCEEDINGS OF THE ACADEMY OF [May, ters is present in the species, while it also passes into the following form which is merely a geographic race. The size varies considerably, even in series from the same locality, while the coloration is modified by the variable intensity of the blackish or brownish postocular bars which margin the lateral carinse ventrad. The dorsum of the head and pronotum is either uniform in color or supplied with a pair of narrow velvet}^ blaxik lines, which diverge caudad and margin the lateral carinse on their internal edge. These lines are variable in intensity and also in continuity, those on the head sometimes being parallel and again regularly divergent and continuous with their pronotal section. Several individuals from the Misiones and Sao Paulo, Brazil, are more or less completely sprinkled with fine blackish-brown punctations, in this respect resem- bling similarly colored individuals of Chloealtis conspersa and Psolaessa texana. The lateral carinse of the pronotum are variable in character, in some individuals being decidedly discontinuous at the transverse sulcus and continuous in others. In the latter specimens the carinse are slightly but regularly divergent through their entire length, while in the other type they are more or less decidedly offset laterad at the sulcus, subparallel on the prozona and slightly divergent or (more frequently) subparallel on the metazona. These two types have no geographic significance, cannot be correlated with size, and in color only that all of the continuous type have the supplementary dorsal lines of black. Some individuals are almost intermediate in the character of the carinse, and similar variation is found in 0. pagana minor. The typical form of the species ranges from Rio Janeiro, Brazil west to at least Formosa, Argentina, extending south only as far as Resistencia Chaco and Misiones, Argentina, northward and westward apparently grading into 0. p. minor, specimens from Chapada and Corumba, Matto Grosso, Brazil, being nearer cotypes of Giglio-Tos' form. Orphula pagana minor (Giglio-Tos). 1897. M[etaleptea] minor Giglio-Tos, Boll. Mus. Zool. Anat. Comp., Torino, XII, No. 302, p. 23. [San Lorenzo, Jujuy, Argentina; Caiza and Aguai- renda, Bolivian Chaco.] Jujuy, Prov, of Jujuy. April, 1911. One male. After careful study of all available material, we are able to amphfy our previous comments on this form^^ arid demonstrate that it is but 21 Proc. Acad. Nat. Sci. Phila., 1906, p. 17. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 315 a geographic race of pagana. The Jujuy male fully agrees with the cotypic material, and typical individuals of the two forms can be separated by the following features: A. — Form more robust; tegmina broader, less elongate; head broader, eyes prominent, shorter, fastigium broad 0. pagana. AA. — Form slenderer; tegmina more elongate, narrower; head narrower, eyes less prominent, longer, fastigium narrow, more elongate 0. pagana minor. This race is prol^ably restricted in its typical form to the Bolivian Chaco and the adjacent portions of Argentina (Jujuy). Material from Chapada and Corumba, Matto Grosso, Brazil, is rather inter- mediate between the present subspecies and true pagana, but some- what closer to minor. *Amblytropidia robusta Bruaer. 1906. AmhUjlropidia robusta Brunei', Proc. U. S. Nat. Mus., XXX, p. 631. [Sapucay, Paraguay.] Misiones. April 5 and 23, 1910; May 5, 1910. One male, three females. These individuals are inseparable from Sapucay specimens. One female has the dorsum washed with dull green, as mentioned by Bruner. The species is only known from the type locality, Puerto Bertoni, Paraguay, and the Misiones. Sinipta dalmani Stai. 1860. Gomphocems {Sinipta) Dalmani St&l, Kong. Svenska Fregatt. Eugenics Resa, ZooL, I, Ins., p. 340. [Montevideo, Uruguay.] Alto Pencosa, Province of San Luis. Elev. 660 meters. December 20-22, 1908. Seven males, one female. These specimens have been compared with two pairs in the Academy collection from Carcarana, Argentina, collected by Bruner. The female of the present series is the only one of the dozen now before us which does not possess supplementary pronotal carinse. The coloration of this individual is essentially the same as the other two of that sex, but there is no trace of the carinse. Doubtless this genus is similar in this respect to Eriteitix, which has the supple- mentary carinse present or absent in the same species from the same locality.22 The locaUties from which this species has been recorded are Cor- doba, Carcarana, and Alto Pencosa, Argentina; Sapucay, Paraguay, and Montevideo, Uruguay. 2 Vide Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1910, p. 625. 316 PROCEEDINGS OF THE ACADEMY OF [May, Parorphula pallidinota Bruner. 1900. P[arorphila] pallidinota Bruner, Sec. Rep. Merch. Locust Invest. Comm. Buenos Aires, p. 26. [Carcarana, Argentina.] Caucete, Prov. of San Juan. Elev. 567 meters. January 13, 1909. One male, two females. Beunos Aires. May 3, 1907. One female. This species has previously been recorded only from Carcarana. There is considerable variation in coloration, several shades of yellowish brown and pale brown being the dorsal color, this dis- tinctly paler than the lateral color in all but one specimen. The latter has the dorsal region lineate and finely speckled with the overlying brown of the lateral color. One specimen has the marginal field of the tegmina greenish. *Sisaiitum gracilicorne (Bruner). 1910. Orphula gracilicornis Bruner, Entom. News, XXI, p. 301. [Puerto Bertoni, Paraguay.] Misiones. March 15 and May 1, 1909. Two males. These specimens have been compared with two topotypic females previously recorded by us.-^ Orphulella punctata (DeGeer). 1773. Acrydium pundalum DeGeer, Mem. I'Hist. Ins., Ill, p. 503, pi. 42, fig. 12. [Surinam.] Misiones. March 24, 1909; April 4 and 30, 1910; August 4, 1909; September 1, 1909; December 12 and 14, 1910. (Nos. 10 and 25.) Eight males, eleven females. San Juan, Prov. of San Juan. Elev. 673 meters. January 14-20, 1909. One male. Caucete, Prov. of San Juan. Elev. 567 meters. January 13, 1909. One male. Pedregal, Prov. of Mendoza. Elev. 696 meters. September 20-22, 1906; December 1-18, 1906. Five males, one female. A careful examination of this series and that already contained in the Academy collection, convinces us that our former position regarding the synonymy of elegans and intricata with this species^* is correct. Bruner in his last table of species of the genus^^ gives full specific rank to these "forms." The San Juan, Caucete and Pedregal material would under his arrangement be referred to his new elongata, based on a single female from Corumbd, Brazil. 23 Entom. News, XXII, p. 250. ^ Proc. Acad. Nat. Sci. Phila., 1906, pp. 27, 28. 25 Ann. Carneg. Mus., VIII, pp. 10-12. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 317 These individuals are typical of the new ''form," which is merely a long-winged phase of punctata, possibly the exclusive or pre- dominating form in certain regions, but found also in a number of localities as we have it in our series from Sapucay, Paraguay (two individuals) and the Misiones (one individual). In the San Juan series green is the predominating color in the females, although one of that sex is brown, as is the Pedregal female. The Misiones series is, with the exception of the ''elongata" individual, "elegans" and "intricata" inextricably confused, with typical individuals and intergrades. The species is found over the greater portion of tropical America south at least to the parallel of Buenos Aires. Toxopterus miniatus Bolivar. 1890. Toxopterus tniniatus Bolivar, Anales Soc. Espan. Hist. Nat., XIX, p. 314. [Cumbase, Peru.] Misiones. March 3-29, 1907. Four males, one female. These specimens are inseparable from individuals from Sapucay, Paraguay, and Chapada, Matto Grosso, Brazil. In addition to these localities, it has been reported from Rio Janeiro, Bolivia, extreme northern Argentina, and several Ecuadorean localities. Fenestra bohlsii Giglio-Tos. 1895. Fenestra bohlsii Giglio-Tos, Zoolog. Jahrbiicher, Abth. Syst., VIII, p. 807. [Paraguay.] Bompland, Misiones. December 10. One immature female. This species is known to range from central Paraguay (Sapucay) and the Misiones, south to Cordoba and Carcarana, Argentina. Staurorhectus longicornis Giglio-Tos. 1897. Staurorhectus longicornis Giglio-Tos, Boll. Mus. Zool. Anat. Comp., Torino, XII, No. 302, p. 26. [San Lorenzo and Tala, Argentina; Caizd, Bolivian Chaco.] Misiones. January 12, 1911; February 24, 1910; May 5, 1910. (Nos. 17 and 36.) Two males, one female. Bompland, Misiones. December 1, 1910. One immature male, one immature female. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. 1906. One female. The female specimen from Chacras de Coria has the lateral carinse of the pronotum more strongly constricted mesad than in the majority of the females of the species, and subobsolete between the first and third transverse sulci. The coloration of this individual is different 318 PROCEEDINGS OF THE ACADEMY OF [May, from the types previously given by the author,^^ having the discoidal field of the tegmina with quadrate maculations and the marginal field largely ochraceous, the general appearance of the individual suggesting certain species of the genus Scyllina. The range of this species extends from the Province of Mendoza (Chacras de Coria) and Cordoba northward. * Staurorhectus glaucipes Rehn. 1906. Staurorhectus glaucipes Rehn, Proc. Acad. Nat. Sci. Phila., 1906, p. 34, figs. 9, 10. [Sapucay, Paraguay.] Misiones. December 12, 1910. (No. 4.) Four males. Bompland, Misiones. December 1, 1910. One male. These specimens have been compared with paratypic females. We feel compelled to differ from Bruner^^ in placing this species in a genus {Aynblysca'pheus) distinct from Staurorhectus longicornis, the type of the latter genus. We have examined a considerable number of specimens of the two species and find that the two characters given as diagnostic of Amhlyscapheus are not in this case important enough to be of generic value. These two are the "entire absence of lateral carinse on the pronotum" and the "valves of the ovipositor very blunt." The first character is one which is very strongly approached if not absolutely reached in our series of longicornis, while the second character, although constant, is of slight degree, not worthy in the present case of generic value. The claim of the genus Amhlyscapheus for recognition is, however, completely destroyed by its author in the recent description of a species of the genus Staurorhectus, S. inter medius,-^ which has as characters the following: "lateral carinse of the pronotum almost obliterated on the anterior lobe" and "valves of ovipositor similar to those of Amhlyscapheus glaucipes Rehn (lineatus Bruner)." As the male was previously unknown, the following are its principal differences from the opposite sex. Size small; form similar to that of the female. Head with the eyes slightly more prominent than in the female, face more retreating than in the other sex; interspace between the eyes distinctly narrower than the width of one of the eyes; frontal costa with the margins more subparallel and the sulcus deeper than in the female; antennae as long as the caudal femur, slightly deplanate proximad. Tegmina 26 Proc. Acad. Nat. Sci. Phila., 1906, pp. 33, 34. 2^ Proc. U. S. Nat. Mus., XXX, p. 632. The species Amhlyscapheus lineatus equals S. glaucipes as stated by us {Proc. Acad. Nat. Sci. Phila., 1907, p. 167) and later admitted by Bruner (Ann. Carneg. Mus., VIII, p. 31). ^Ann. Carneg. Mus., VIII, p. 31. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 319 with the distal portion broader and less attenuate than in the female. Interspace between the mesosternal lobes slightly more longitudinal than in the female; metasternal lobes subattingent. Caudal femora slightly more robust than in the opposite sex. Coloration similar to that of the female. Measurements. Length of body 16 . mm. Length of pronotum 3.3 Length of tegmen 12 .5 Length of caudal femur 11.8 Sapucay, Paraguay, and the Misiones are the only known localities for the species. Euplectrotettix conspersus Bruner. 1900. Euplectrotettix conspersus Bruner, Sec. Rep. Merch. Locust Invest. Comm. Buenos Aires, p. 40.^ [Eastern slopes of the Andes at Mendoza, Argentina.] Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. April 10, 1907. One female. This specimen fullj^ agrees with a cotypic individual from Mendoza, loaned by Prof. Bruner. Our specimen is grayer with the darker maculations more decided, but these differences are purely individual. The species is only known from the Mendoza region. Euplectrotettix schulzi Bruner. 1900. Euplectrotettix Schulzi Bruner, ibid., p. 41. [Vicinity of Cordoba, Argentina.] Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. April 7, 1907. One male. Mendoza, Prov. of Mendoza. Elev. 767 meters. April 24, 1908; May 11, 1908. Two females. We have before us several typical specimens of this species loaned by Prof. Bruner and we are forced to the conclusion that he erred in associating female specimens with converging lateral carinse to the pronotum with males having those carinae non-converging. The former are to our mind prasinus, which varies in the coloration of the dorsum of the pronotum. Our two females agree with the males in the character of the lateral carinse and the coloration. One of the females is larger than the other, the measurements of the two being as follows : 23 Fig. 14 on page 41 of this paper is given as E. conspersus, but we are led to believe from typical material of all of the species, kindly loaned by Prof. Bruner, and our present series, that it represents prasinus. 320 PROCEEDINGS OF THE ACADEMY OF [May, Length of body 31. mm. 24. mm. Length of pronotum 5.5 " 4.5 " Length of tegmen 20+ " 17. '' Length of caudal femur 17.8 " 12.8 " The range of this species is now known to extend as far west as the eastern foot of the Andes. Euplectrotettix prasinus Brunei. 1900. Euplectrotettix prasinus Bruner, ibid., p. 42, fig. 14 (erroneously titled conspersus). [Cordoba, Argentina.] Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. February 23, 1907. One male. Cordillera de Mendoza. March 20, 1908. One female. It is evident that this species has at least two color phases, one largely green and the other several shades of brownish, the latter in the extreme condition with little contrast in tones. In addition to these phases there is one form which has the dorsum of the pronotum uniform in color, and another with broad lateral longitudinal iDars of velvety black on the same. The above-listed female and a typical female from Cordoba, loaned by Prof. Bruner, have the uniform pronotum, one in the green phase, the other in the brown phase. The Chacras de Coria male and a female from Cordoba, from Bruner and labelled schulzi by him, have the dorsum of the pronotum barred, the Chacras de Coria male being a well-contrasted brownish individual and the female strongly approaching the green phase. The lateral carinae of the pronotum are the same in all of the- specimens, converging caudad to the first transverse sulcus, thence regularly diverging. In the male the tegmina are proportionately longer than in any other species of the genus and the whole form of the same sex is decidedly compressed. The measurements of the above-mentioned specimens are as follows : Male Female Chacras Female Female Cordillera de Coria. Cordoba. Cordoba, de Mendoza. mm. mm. mm. mm. Length of body 20. 23.5 31.3" 25.5 Length of pronotum 4.2 4.6 5. 5.1 Length of tegmen 20. 20.5 21.5 20.8 Length of caudal femur ... 13.2 14.4 15.5 15.5 This species is known only from the Provinces of Cordoba and Mendoza, Argentina. Abdomen greatly and abnormally distended. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 321 Scyllina picta (Bruner). 1900. P[lectrotettix] pidus Bruner, ibid., p. 38, fig. 13. [Provinces of Cor- doba and Santa Fe, Argentina.] Misiones. January 12, 1911. (No. 38.) One female. Corrientes, Prov. of Corrientes. Elev. 76 meters. IMarcli 3, 1909. One male, one female. Buenos Aires. May 1-3, 1907. One male, twa females. La Carlota, Prov. of Cordoba. Elev. 142 meters. May 7, 1907. One female. Alto Pencosa, Prov. of San Luis. Elev. 660 meters. January 30, 1908. One female. San Juan, Prov. of San Juan. Elev. 673 meters. January 20, 1909. (No. 41.) Four males. Cordillera de Mendoza. November 26, 1906. One female. This series gives more information regarding the distribution of this typically Argentine species than all we previously possessed. In the present series are all of the extreme points of the range of the species, this being from the Misiones, Corrientes and San Juan, south to Buenos Aires and west to the Cordillera de Mendoza. Stirapleura bruneri Rehn. 1906. Stirapleura bruneri Rehn, Proc. Acad. Nat. Sci. Phila., 1906, p. 49. ["Argentina from the Pampa Central, extending into Uruguay to the eastward."] Misiones. December 14, 1910. Two males. Buenos Aires. May 3, 1907. One male, five females. This series is found to be identical with specimens from Carcarana, Argentina, which we select as the type locality of the species.^^ The females all have greenish more or less the predominating color, all of the males having their patterns in browns and ochres without any indication of green. In extreme greenish specimens from Buenos Aires, this color is that of all the light areas of the sides and dorsum, while in the other extreme of that phase the only decidedly green sections are the face, gense and humeral streak of the tegmina. What is probably this species was recorded by Berg^^ ^s Steno- bothrus signatipeyinis (Blanchard) from Cerro Blanco, Nueva Roma, and the Naran-Choyque, southwestern Buenos Aires. The same ^1 The name bruneri was given to replace S. signatipennis Bruner, 1900 (not of Blanchard, 1851), the distribution of which, given above, was all that was cited by Bruner for the species. We possess two pairs determined by him, from ■Carcarana, and we here designate this place as the type locaht3^ 32 Enlom. Zeit. Stettin, XLII, p. 38. 322 PROCEEDINGS OF THE ACADEMY OF [May,. author credited the species to Chile (apparently after Blanchard and in reference to true signatipennis) and Uruguay. Subfamily (EDIPODINiE. Trimerotropis pallidipennis (Burmeister). 1838. 0[edipoda] pallidipennis Burmeister, Handb. der Entom., II, Abth. II, pt. 1, p. 641. [Zimapan, Hidalgo, Mexico.] Alto Pencosa, Prov. of San Luis. Elev. 660 meters. November 21-22, 1908. Four males. La Paz, Mendoza. Elev. 504 meters. November 15, 1908. One female. Pedregal, Prov. of Mendoza. Elev. 696 meters, November 23, 1906; December 16 and 30, 1906. One male, two females. Mendoza, Prov. of Mendoza. Elev. 767 meters. February 23, 1908; March 13 and 27, 1908; April 2-24, 1908; May 2-31, 1908; June 5-12, 1907-1908; July 27, 1907; September 27, 1908; October 26, 1908; November 12 and 29, 1907; December 2 and 10, 1907. Nineteen males, nineteen females. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. January 7-22, 1907-1908; February 9-24, 1907; March 27, 1907; April 4-24, 1907, 1908 and 1909; May 25, 1907; November 2, 1906. Eight males, nine females. Potrerillos, Prov. of Mendoza. Elev. 1,368 meters. December 27, 1908. One female. Cordillera de Mendoza. March 20, 1908; November 21, 1906. Three males, one female. This extensive series shows that the species varies tremendously in size and color, in these respects being parallelled by similar variation in the closely allied, if at all distinct, North American T. vinculata. The same variations in general size, color tone, width, intensity, solidarity, and curve of tegminal bands, intensity and width of wing band, tone of wing disk and colors of ventral sulcus of caudal femora are noted as in vinculata. The rugosity of the metazonal disk varies individually in both sexes, while the caudal angle of the pronotum shows variants ranging from slightly obtuse to slightly acute, the majority having it rect- angulate. The species has a very considerable range, having been recorded from north-central Mexico south to at least as far as the provinces of Santa Fe, Cordoba, San Luis, and Mendoza, Argentina. ^913.] NATURAL SCIENCES OF PHILADELPHIA. 323 Subfamily OMMEXECHIX.E. :Parossa''3 viridis (GigUo-Tos). 1897. 0[ssa] viridis Giglio-Tos, Boll Mus. Z90I. ^nat Comp Torino XII, No. 302, p. 27. [Caiza and San Francisco, Bolivian Chaco, San Lorenzo, Jujuy, Argentina.] Jujuy, Prov. of Jujuy. April, 1911. Four females. San Juan, Prov. of San Juan. Elev. 673 meters. January 17-20, 1909. One male, two females. Alto Pencosa, Prov. of San Luis. Elev. 660 meters. December 21, 1908. One female. La Paz, Prov. of Mendoza. Elev. 504 meters. December 19, 1908. One male, one female. Pedregal, Prov. of Mendoza. Elev. 696 meters. January 3-5, 1907. Two males, two females. Mendoza, Prov. of Mendoza. Elev. 767 meters. January 2-16, 1908; February 12, 1908; April 3, 1908; May 24, 1908; June 5, 1908. Four males, five females. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. January 19-29, 1907; February 2-13, 1908; March 27, 1907; April 5-11, 1907. Fifteen males, five females, one immature female. Blanco Encalada, Prov. of Mendoza. Elev. 1,068 meters. Feb- ■ ruary 12, 1908. One male, one female. Punta del Agua, Prov. of Mendoza. February 27, 1907. Two - "f pTy\Q iPS San Ignacio, Prov. of Mendoza. Elev. 1,235 meters. March 15-22, 1908; April 5, 1908. Three males, three females. Pot'rerillos, Prov. of Mendoza. Elev. 1,368 meters. January 20, 1908. Two males, four females. This very interesting series throws some light on the color phases of the species. It is apparent that three are present: first, a green phase, which was that originally described by Giglio-Tos; second, a brownish or dull wine-colored phase, and, third, a speckled phase. The green phase shows Uttle variation in itself aside from that in the yellowish tone of the green base color and the more or less pronounced character of a yellowish wash on the dorsal section of the tegminal 33 After examining the literatm-e involved, we can substantiate what Bruner fAnn Carneg Mus., VIII, p. 38, footnote) has said regarding the proper status of Blanchard's genus Paulinia. It is clearly the same as Ccelopterna bt&l, which name it should replace, and in no way related to Ossa Gigho-Tos, which through an unfortunate preoccupation must fall, and in place ot which Bruner has erected Parossa. 324 PROCEEDINGS OF THE ACADEMY OF [May, bases.^^ The brownish phase varies in tone from pale dull wine color (vinaceous) and clay color to burnt umber, the caudal femora in the extreme condition with more or less apparent transverse dark bars on the dorsal face, and in the same pronounced type the caudal tibise are of the general tone. The brownish phase and the normal greenish phase are apparently connected by intermediate types, some individuals being of the green phase with the dorsum of the pronotum and the tegmina weakly vinaceous, while other specimens, which otherwise would be referred to the brownish phase, have yellowish the underlying color, the femora unhanded and the tibise of the glaucous of the green phase. The speckled phase also shades into both of the other forms and is characterized by a mottling of bistre, olive-green, or bay over the underlying bright gamboge to lemon-yellow of the pronotum and head of those specimens approach- ing the green phase and over burnt umber in the single (Jujuy) specimen approaching (or rather in) the brownish phase. These fine mottlings are either general on the dorsum or grouped in two irregular longitudinal bars, which are postocular in their po- sition, the interocular portion of the head also being much suffused. In the extreme condition of this phase the femora are moderately banded dorsad, the tibise being of the color which the general tone of the individual more nearly approaches. These phases are not geographic, as the Mendoza series has all three, but apparently a certain type is more numerous in one locality than in others. All of the Potrerillos material is either in or very closely approaching the speckled phase, while, aside from several brownish individuals, all of the Chacras de Coria representatives are in or very near the green phase. There is considerable size variation, but this appears to be indi- vidual and not geographic. The range of the present species is known to extend from the Bolivian Chaco (Caiza and San Francisco, cotypic individuals being before us) and Jujuy, south to the Provinces of Santa Fe (Carcarana), Cordoba, San Luis (Alto Pencosa), and Mendoza {vide supra). PACHYOSSA n. gen. Intermediate in position between Parossa Bruner (Ossa Giglio-Tos) and Ommexecha Serville, sharing certain characters of each, but far ^* Superficially, this might suggest to some an approach to P. bimaculata, which is in part characterized by having large yellowish maculations in the same regions, but in the present form the yellow is never as decided or as sharply outlined,, while excellent structural characters readily differentiate the two species. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 325 closer to the former. With Parossa it agrees in the general form of the occiput and interocular region, the reduction of spines on the pronotum and tubercles on the limbs, the non-spiniform ventro- caudal angles of the lateral lobes and the rounded internal angle of the mesosternal lobes ; while from Parossa it differs in the subrostrate interantennal portion of the frontal costa, the tuberculate caudal margin of the pronotal disk, the scabrous dorsum of the same, the peculiar coriaceous texture and subnodulose surface of the tegmina, in this respect resembling Ommexecha and Spathalium, and in the abbreviate, robust form. Form robust, abbreviate; surface of head, pronotum, and femora multituberculate; head, pronotum, venter, and limbs, but particu- larly the latter two, strongly villose. Occiput buUate; interocular region very broad, greatly exceeding the width of the eye, greatly declivent, non-impressed; frontal costa subrostrate between the antennse, evanescent ventrad, sulcate dorsad; eyes subglobose. Pronotum robust, greatest dorsal width subequal to its length; prozona hardly elevated, metazona depressed cephalad, transversely elevated caudad; cephalic margin slightly emarginate mesad, caudal margin very broadly obtuse-angulate with three pairs of marginal nodes; lateral lobes with the ventro-caudal angle very broadly rounded, non-spiniform. Tegmina broad, sublanceolate, apex moderately rounded; texture coriaceous; surface without decided nodes, but with certain of the transverse veins of the discoidal and anal fields slightly elevated. Wings perfectly developed. Interspace between the mesosternal lobes very decidedly transverse, the margins of the lobes rounded; metasternal interspace more transverse than the mesosternal one. Type. — P. signata n. sp. Pachyossa signata n. sp. Type: 9 ; Misiones, Argentina. January 12, 1910. (P. Jor- gensen; No. 22.) [Acad. Nat. Sci. Phila., type No. 5,218.] Size medium; form fusiform, subdepressed ; surface of the head with the tubercles fewer and lower on the occiput than elsewhere, pronotum ruguloso-tuberculate, hairs on the head, pronotum, and pleura few and scattered, around the insertion of the limbs and on the same very much more numerous. Head with the greatest width contained less than one and one-half times in the depth of the same; interocular space one and two-thirds times the length of the eye, greatly declivent to the subvertical fastigium, which is delimited 326 PROCEEDINGS OF THE ACADEMY OF [May, caudad by an obtuse-angulate series of tubercles, passing cephalad into the frontal costa without interruption; frontal costa when seen from the side arcuate subrostrate between the antennae, obsolete ventrad, dorsad with a V-sectioned sulcation; eyes subglobose, their length contained about one and one-third times in the length of the infra-ocular gense; antennae incomplete, Pronotum with the median carina indicated only on the prozona and there by a tuberculate ridge, slightly arcuate in profile; lateral angles indicated on the metazona and there only by bluntly rounded, low-tuberculate shoul- Fig. 12. — Pachyossa signata n. gen. and sp. Lateral view of type. (X 3.) ders, on the prozona no trace of the angles exists; transyerse sulci weak, indications of four present, only the caudal at all distinctly marked; lateral lobes with the greatest depth contained about one and one-third times in the greatest length of the same, caudal margin oblique subtruncate, the ventro-caudal angle yery broadly rounded and extending considerably yentrad of the yentro-cephalic angle, which is obtuse. Tegmina nearly two and one-half times as long as the pronotum, the greatest width at the proximal fourth and con- tained oyer three times in the length, thence rather eyenly tapering to the rather narrowly rounded apex; marginal field broad at the proximal fourth, there slightly more than a third the total width of the tegmen; sutural margin yery slightly but regularly arcuate; the transyerse yein-groups which form subnodose eleyations are formed by a number of yery short transyerse yeinlets coalescing and filling up the intervening cells, the contrast between these groups and the distinctly outlined cells between the elevations bringing them into greater prominence. AVings with their length subequal to that of the tegmina when both are in repose, the greatest width contained 1913. NATURAL SCIENCES OF PHILADELPHIA. 327 Fig. 13. — Pachyossa 'signata n. gen. and sp. Dorsal out- line of head and pronotum. (X 3.) nearly twice in the length of the same; apex well rounded. Pro- sternum transversely carinate with a compressed trigonal projection mesad; interspace between the mesosternal lobes four times as broad caudad as deep, the lateral margins diverging, obliquely rounded; interspace between the metasternal lobes even more decidedly transverse than that l)etween the mesosternal lobes. Cephalic and median limbs strongly villose. Caudal femora one and two-thirds times the length of the pronotum, pattern of the pagina moderately regular; caudal tibiae subequal to the femora in length, armed on the external margin with six spines; caudal metatarsus subequal to the remainder of the tarsus in length; all of the caudal limb strongly and thickty villose. General color clove brown, passing into Vandyke brown mottled with wood brown on the limbs; ventral surface mummy brown, becoming wood l:)rown on that aspect of the limbs. Head, pronotum, and pleura with the tubercles varied with pale brown and blackish, so that the general color is modified in a "pepper-and-salt" fashion; lower part of the face with much wood bro^\Ti; eyes raw sienna; antennae with the joints blackish, each joint margined distad with ochraceous. Tegmina with the base color seal bro^vTi, with a reticulate pattern of wood brown and ecru drab formed by the coloring of groups of veins, both longitudinal and transverse, the ecru drab predominating toward the apex and the costal margin; anal field with a proximal ovate spot of clear orpiment orange, which is completely hidden when the tegmina are in repose. Wings strongly infu.'Scate with clove brown proximad, this passing gradually into the pale creamy -white of the apex, where the veins alone retain the color of the proximal portion. Limbs mottled and blotched with the general colors, the caudal femora with two irregular pale transverse bars, which are V-shaped on the external face. Hairs of the entire body straw yellow. Measurements. Length of body 28 . mm. Length of pronotum 8 . " Greatest dorsal width of pronotum 7. " Length of tegmen 21 . " Greatest width of tegmen 6. " Length of caudal femur 13.2 '* 328 PROCEEDINGS OF THE ACADEMY OF [May, Information with the unique type is to the effect that it was taken from stones of a very similar coloration. * Ommexeclia giglio-tosi Bolivar. 1899. 0[mmexecha] Giglio-Tosi Bolivar, Revista Chilena Hist. Nat., Ill, pp. 54, 55. [Caiza, Aguairenda, and San Francisco, Bolivian Chaco.] Jujuy, Prov. of Jujuy. April, 1911. Five males, three females. Embarcacion, Prov. of Salta. April, 1911. Three females. This series of specimens show two types of structure, one with the pronotum more sellate than the other, but we do not feel warranted in separating them specifically. Both forms are in the Jujuy series, but only that with the more sellate pronotum in the Embarcacion lot. The wings are pale azure on the disk, the apex very lightly infumate, with the transverse veins of the discoidal and adjacent portion of the axillary fields seal brown. The above localities are all from which the species is known. *Ommexecha germari Burmeister. 1838. 0[mmexecha] Germari Burmeister, Handb. der Entom., II, abth. II, pt. 1, p. 655. [Brazil.] Misiones. August 4, 1909. One female. This individual is inseparable from representatives from Sapucay, Paraguay. The present species has been recorded from Brazil (specifically Sao Leopoldo [Bolivar], Porto Allegre [Karsch], and Corumba [Bruner] ), Paraguay (specifically Villa Rica [Giglio-Tos] and Sapucay [Rehn] ) and the Misiones. This is the first record of the species from Argentina. Ommexeclia servillei Blanchard. 1837. Ommexecha Servillei Blanchard, Ann. See. Entom. PVance, V, p. 613, pi. XXII, figs. 2, 3. [Province of Corrientes, Argentina.] Misiones. May 12, 1910; November 9, 1910; December 12 and 17, 1910. (No. 20.) Four males, two females. All of these specimens are brownish in coloration and we have provisionally retained the name servillei for them, although we have little doubt that topotypes of Serville's virens, from Buenos Aires, will show that name to have been based on a green color phase of the present insect. Previous records of servillei are from Porto Allegre, Rio Grande do Sul (Karsch), Sierra Geral, Santa Catharina (Karsch), Sao Paulo (Bruner), Reboucas (Rehn), Corumba, Matto Grosso (Bruner), Matto Grosso (Karsch), Brazil; Asuncion and San Bernardino, Paraguay (Bruner), Sapucay, Paraguay (Rehn, as virens), and Misiones and Corrientes, Argentina. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 329 * Spathalium 35 stall Bolivar. 1884. Sp^thalium Slali Bolivar, Ann. Soc. Espafi. Hist. Xat., XIII, p. 32. [Sao ("San") Leopoldo, Rio Grande do Sul, Brazil.] Misiones. January 12, 1911; October 31, 1910; November, 1910. (No. 30 and 37.) One male, two females. The present specimens are clearly referable to this species, which was previously known only from the original description. Two facts are evident from the material before us, these being that the species is dichromatic and that the length of the tegmina and wings varies greatly in the same. The type was of a greenish color phase, which is almost matched by one of the females in hand, the green of the tegmina apparently being more extensive than in the type, as it colors the adjacent portions of the marginal and anal fields of the tegmina as well as the discoidal as described. The other individuals are of a similar pat- tern, but in several tones of brown with no evidence of green. The tegmina show considerable length variation as well as some in the form of the apex of the same. The latter may be acute-angulate without any trace of bluntness or of similar general outline, with the immediate apex narrowly rounded. The wings are described as "dimidise elytrorum longitudinis, " while in one of the present females the wings are about two-thirds of the tegminal length, and in the other they fall but little short of the tegminal apices when in repose. In the male the wings are subequal to the tegmina when closed. The measurements of the present material and of the type are as follows : Male. Female. Female. Female (type). mm. mm. mm. mm. Length of body 22. 34.5 33. 32. Length of pronotum 7.5 10. 10. 9.5 Greatest dorsal width of pronotum 6.2 9.2 9.6 Length of tegmen 23. 27.2 33.5 23. Length of caudal femur .. 13.2 16.8 20. 16. '5 The specimens from Chapada, Matto Grosso, Brazil, recorded by us as Spathalium cyanopterum (Proc. U. S. Nat. Mus., XXXVI, p. 110), we find on re-examination to be S. klugii (Bm-meister), which Bolivar synonymized under S. serrulatum Thunberg, the type of Burmeister's species having been examined by him. There seems no doubt but that his description of "serrulatum" was in part drawn from this specimen. On examination of the original description of serrulatum we have been unable to positively place the species, but it does not seem to be the same as klugii. Kirby {Syn. Catal. Orth., Ill, p. 298) has given the synonymy correctly and permitted both names to stand. Bruner, unfortu- nately, has redescribed klugii as S. bolivari (Ann. Carneg. Mus., VIII, p. 39). Our material fuUy agrees with his description and that of Burmeister and of Bohvar. 330 PROCEEDINGS OF THE ACADEMY OP [May, Subfamily LOCUSTIN^. Coryacris angustipennis (Bmner). 1900. Elceochlora angustipennis Bruner, Sec. Rep. Merch. Locust Invest. Comm. Buenos Aires, p. 58. [Rosario, Prov. of Santa Fe, Argentina.] 1909. Coryacris diversipes Rehn, Proc. U. S. Nat. Mus., XXXV, p. Ill, figs. 1 and 2. [Corumbd, Matto Grosso, Brazil] Posadas, Misiones. March 6 and 7, 1909; April 8, 1910. Two males, one female. These specunens have been compared with a paratypic female of diversipes from Cuyaba, IMatto Grosso, and found to be inseparable. Bruner has recently established the above synonymy,^^ which appears to be correct. The localities given above are all that are known for the species. Prionolopha serrata (Linnseus). 1758. [Gryllus (Bulla)] serratus Linnaeus, Syst. Nat., X ed., p. 427. ["Indiis."] Embarcacion, Prov. of Salta. April, 1911. One female. This striking species, which ranges northward to northern South America, has been recorded from as far south as Tucuman and Resistencia nel Chaco, Argentina. Diedronot'us laevipes (Stai). 1878. T[rapidonotus] Icevipes St&l, Bihang till K. Svenska Vet.-Akad. Handl., V, No. 9, p. 20. [Sao Leopoldo, Brazil; Argentine Republic] IViisiones. January 10, 1911; January 12 and 26, 1910; November 26, 1909. (Nos. 21 and 34.) Three males, one female. This interesting form has been recorded from a number of localities extending from southern Brazil and Paraguay south as far as Buenos Aires. According to Bruner, it inhabits the open "camp." Diedronotus angulatus (S&tl). 1873. T[ropinotus] angulatus Stai, Ofv. Kong. Vet.-Akad. Forh., 1873, No. 4, p. 52. [Bahia, Brazil.] Jujuy, Prov. of Jujuy. April, 1911. Two males. Embarcacion; Prov. of Salta. April, 1911. One female. This species has been recorded from several Brazilian localities south to as far as Asuncion, Villa Rica, and Sapucay, Paraguay, and Tucuman, Argentina (Giglio-Tos) , the latter being the only previous Argentine record. Diedronotus discoideus (Serville). 1831. Tropinotus discoideus Serville, Ann. Sci. Nat., XXII, p. 273. [Brazil.] Misiones. March 26 and 30, 1909; April 12 and 20, 1910; Sep- tember 16, 1910. Two males, four females. ^ Ann. Carneg. Mm., VIII, p. 53. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 331 All of these specimens, except the March 30 female, have the tegmina distinctly maculate, the exception having the discoidal field with the faintest possible indication of the usual blotching. The male and female taken March 30 were in coitu, and the two represent the extremes in maculation of the discoidal field of the tegmina. The anal field of the tegmina is unicolorous in all of the specimens. Information with one specimen is to the effect that the species is "common." Northward this form has an extensive range, while the southern border of its distribution extends from Jujuy (Giglio-Tos) eastward to Buenos Aires (Giglio-Tos) and Rio Grande do Sul, Brazil (Rehn). Elaeochlora viridicata (Serville). 1839. Xiphicera viridicata Serville, Hist. Nat. Ins. Orthopt., p. 614. [Buenos Aires.] Buenos Aires. February 14 and 20, 1909. Three males. Misiones. January 3 and 5, 1910; February 1, 1910; March 20-26, 1910; December 3, 1909; December 12 and 24, 1910. (No. 2.) Six males, eight females. The Buenos Aires specimens are typical of the species, while the Misiones series is referred here with some doubt, differing much as does the Sapucay, Paraguay representation previously examined by us." The pronotum is, in the Misiones specimens, more compressed than in Buenos Aires individuals, the fastigium shorter and broader in the male, being more of an equilateral triangle, and the coloration different, the median line of the pronotum being much narrower, while the humeral regions of the pronotum of the male are washed with dull purplish and the caudal tibiae of the same sex are wax yellow to pale orange, without reddish as in typical viridicata. The females have the tibiae green as in Buenos Aires specunens, the spines and tarsi usually without sanguineous, although this is indicated in two Misiones individuals. It is probable that the Sapucay and Misiones series are specifically or subspecifically distinct from viridicata, but we have refrained from recognizing their differences with a name. It seems more desirable at present to get a better conception of the real value of these differences, which can only be done by the acquisition of more material from a number of localities. This species has been recorded from points extending from the tj^pe locality north to Chapada, Matto Grosso, Brazil. 3' Proc. Acad. Nat. Sci. Phila., 1907, p. 174. 332 . PROCEEDINGS OF THE ACADEMY OF i^^^Y) Chromacris miles (Drury).38 1773. Gryll[us] Loc[usta] miles Drury, Illust. Nat. Hist. Exot. Ins., II, pp. 79 and Index, pi. XLII, fig. 2. [Bay of Honduras.] Misiones. February 20, 1909; December 1-14, 1909-1910. (No. 14.) Two males, five females, three nymphs. Buenos Aires, February 14 and 20, 1909. Two males, three females. Jujuy, Prov. of Jujuy. April, 1911. One male, Alto Pencosa, Prov. of San Luis. Elev. 660 meters. January 30, 1908; February 2, 1908. Three males, five females. Mendoza, Prov. of Mendoza. Elev. 767 meters. February 29, 1908. One male. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. February 6-16, 1907-1908; April 11, 1907. Three males, seven females. We have before us specimens from Merida, Yucatan, contained in the Hebard Collection, which agree absolutely with the original description of miles. The material from Argentina and Paraguay shows certain constant differences which have already been empha- sized by Pictet and Saussure.^^ Any expression of the exact rela- tionship of the material from the two regions seems best withheld, until at least sufficient series from other localities can be examined, thus enabling us to judge more clearly how constant over definite regions apparent differences are. The Merida individuals, seven in number, are constant and typical. All of the Argentine and Para- guayan specimens seen are duller with the pale maculations more orange-rufous than yellow, the wings with the pale areas brick red or orange, the pale occipital bars narrower and the pale areas of the caudal margin of the pronotum usually not continuous, but broken 28 In studying the present series of this species we have made a rather extensive re-examination of our material of this and allied forms, as well as the literature bearing on the subject. It is in consequence necessary to correct certain previous references which are erroneous on account of a confusion of 7niles and stolli. Bruner's first reference of stolli (Sec. Rep. Merch. Locust Invest. Coram. Buenos Aires, p. 60) should be credited to tniles, as material before us studied and deter- mined by him at that time shows. Specimens of stolli from British Guiana, also from him, we find labelled 7niles in his handwriting. The present author, partly by following these determinations, is responsible for the following misidentifica- tions, which should refer to C. miles. Chromacris stolli Rehn {nee Pictet and Saussure), Entom. News, XVI, p. 38. [Sapucay, Paraguay.] Chromacris stolli Rehn {nee Pictet and Saussure), Proc. Acad. Nat. Sci. Phila., 1907, p. 174. [Sapucay, Paraguay.] Chromacris stolli Rehn {nee Pictet and Saussure), Entom. News, XXII, p. 251. [Puerto Bertoni, Paraguay.] 39 Mitt. Schweiz. Entom. Gesell., VII, p. 350, as variety A. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 333 into spots or areas somewhat as in stolli, but less decided than in that form. The Misiones series has the wings more reddish than the other lots, while the Chacras de Coria individuals have these more orange. The provinces of Buenos Aires, Cordoba, and Mendoza seem to be the southern limit of the species. *Zoniopoda iheringi Pictet and Saussure. 1887. Zoniopoda Iheringi Pictet and Saussure, Mitth. Schw. Entom. Gesell., VII, p. 357. [Southern Brazil.] Misiones. February 8 and 14, 1910; 15 and 21, 1909 and 1910; December 8 and 23, 1910. (No. 18.) Four males, three females. These specimens have been compared with individuals from Sapucay, Paraguay, and a female from Rio Grande do Sul, Brazil, received from and determined by Saussure. It is evident that considerable size variation is found in the species, as we have differ- ences in the extremes of the two sexes from Misiones as follows : Male. Female, mm. mm. mm. mm. Length pf body 27. 32.5 35. 49.5 Length of pronotum 6.2 7.5 8.9 12.2 Length of tegmen 24.5 26. 32.5 37. Length of caudal femur 14.7 17. 19. 25.5 There is also an appreciable amount of variation in the general form, some specimens, irrespective of sex, being more compressed than others, more noticeably so in the male than in the female, and quite irrespective of locality. A casual examination would lead one to suppose that two species were present, but careful study shows that the extremes cannot be separated on account of the intermediate individuals. The median carina of the pronotum shows some varia- tion in prominence in both sexes. In color there is marked variation in the shade of blue on the disk of the wing, in some individuals this being nile blue, flax flower blue (Ridgway) in others, running through heliotrope purple to phlox purple. This variation does not appear to be correlated with sex, locality, size, or degree of compression. The caudal tibiae also vary in general color from cream to scarlet vermilion dorsad, with the ventral surface very pale apple green. Information with one specimen is to the effect that the species is gregarious. Its range is known to extend from Chapada, Matto Grosso (Bruner), and Rio Grande do Sul (Rehn), Brazil, to the Misiones. 334 PROCEEDINGS OF THE ACADEMY OF [May, Zoniopoda cruentata (Blanchard). 1846. Acridium cruentatum Blanchard, in D'Orbigny, Voy. dans I'Amer. Merid., VI, pt. II, p. 216, pi. XXVII, fig. 5. [No locality.] Jujuy, Prov. of Jujuy. April, 1911. One male. La Carlota, Prov. of. Cordoba. Elev. 142 meters. May 8, 1909. One female. Mendoza, Prov. of Mendoza. Elev. 767 meters. April 9, 1908. One female. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. January 15-30, 1907-1908; February 7-15, 1907-1908; March 23-25, 1907; April 4-18, 1907 and 1909; May 22-23, 1907. Five males, twelve females. Pedregal, Prov. of Mendoza. Elev. 696 meters. January 14, 1907; December 13, 1906. Two males. Misiones. November 12, 1909; December 10-12, 1909. Five males. This series is very constant in coloration aside from a slight variation in the depth of the ground color of the head. The Jujuy individual, alone of the series, has the proximal portion of the external face of the caudal femora more olive green than in the other specimens and blending into the blackish disto-median band. There is no tendency in the series to approach the Brazilian Z. tarsata (Serville) . The northern limit of the range of the present species is not defi- nitely known, as most of the records are confused with tarsata, but to the southward, where cruentata alone is found, its range is given by Bruner as "central and northern Argentina." The above records and that from Buenos Aires (Giglio-Tos) are the most southern definitely known ones. Zoniopoda omnicolor (Blanchard). 1846. Acridium omnicolor Blanchard, ibid., p. 216, pi. XXVII, fig. 3. [No locality.] Jujuy, Prov. of Jujuy. April, 1911. One female. This species has been recorded from as far north as Caiza, Bolivian Chaco (Giglio-Tos), and Sapucay, Paraguay (Rehn; Bruner), south to Santiago del Estero (Stal) and Cordoba, Argentina (Bruner). Diponthus electus (Serville). 1839. Acridium electum Serville, Hist. Nat. Ins. Orthopt., p. 67. [IMonte- video.] Misiones. November, 1910; December 17 and 22, 1910. (No. 32.) Two males, one female. This beautiful species is easily recognized by its nearly uniform colored tegmina and longitudinally barred pronotum. The present 1913.] NATURAL SCIENCES OF PHILADELPHIA. 335 individuals all have the caudal tibiae more or less extensivelj^ pinkish purple distad, in the female this color covering almost the whole of the tibiae, while the dorsum of the tarsi are suffused with the same color in all. The pale head and pronotal lines vary from dull straw yellow to clay color, the pale areas of the caudal femora closely agreeing with this color, while the darker pronotal bars vary from dark oil green to purplish brown; the dark areas of the pleura and caudal femora agree in color with the dark pronotal bars. The previous records of this species are from Montevideo (Ser- ville) and Patagonia (Pictet and Saussure). *Diponthus festivus Gerstaecker. 1873. Diponthus festivus Gerstaecker, Entom. Zeit., Stettin, XXXIV, p. 193. [Porto Allegre, Rio Grande do Sul, BrazU.] Misiones. November 26, 1909; December 1 and 18, 1909-1910. Three females. This striking species has only been recorded from the type locality and by Pictet and Saussure without exact locality from the same state (Rio Grande do Sul). * Diponthus crassus Bruner. 1910. Diponthus crassus Bruner, Entom. News, XXI, p. 303. [Puerta Bertoni, Paraguay.] Misiones. October 27, 1909; November 9 and 12, 1907 and 1909; December 12, 1909. Four males, five females. These specimens are perfectly typical of this very distinct recently described species. As the male was previously unknown, the measurements of an average individual of that sex may be of interest r length of body, 24 mm.; length of pronotum, 5.2; length of tegmen,. 16.3; length of caudal femur, 14. Of the above series three pairs, taken in November and December, were captured in coitu. The type locality and the Misiones are the only localities from which the species is known. ♦Diponthus paraguayensis Bruner. 1906. Diponthus paraguayensis Bruner, Proc. U. S. Nat. Mus., XXX,. p. 657. [Sapucay, Paraguay.] Misiones. May 5, 1910; November 12, 1909; December 12, 1910. (Nos. 3 and 6.) Three males, six females. The variation in color tone previously noted by us in this species^^ is evident in the present series. Information with the species is to the effect that it is very common. « Proc. Acad. Nat. Sci. Phila., 1907, p. 179. 336 PROCEEDINGS OF THE ACADEMY OF [May, The only localities known for this form are that of the type and the Misiones. Diponthus argentinus Pictet and Saussure. 1887. D[iponthus] argentinus Pictet and Saussure, Mitt. Schweiz. Entom. Gesell., VII, p. 372. [Buenos Aires.] Mendoza, Prov, of Mendoza. Elev. 767 meters. April 9, 1908. One female. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. Janu- ary 31, 1907; April 3, 1907; December 3, 1903. Two adult and one immature female. Cordillera de Mendoza. April 3, 1908. One female. Potrerillos, Prov. of Mendoza. Elev. 1,368 meters. December 27, 1907. One male, one female. These specimens vary considerably in the tone of both the dark and light base colors, the former being olive green in some, blackish in others, while the pale shade varies from nearly clear yellow or creamy yellow to decided dull orange. The single immature individual was taken April 3, 1907. This species ranges from Buenos Aires west to the Cordillera de Mendoza, while to the north or south we know nothing of the limits of its distribution. Leptysma filiformis (Serville). 1839. Opsomala filiformis Serville, Hist. Nat. Ins. Orthopt., p. 593. [The north of the State of Sao Paulo, BrazU.] Misiones. March 18, 1909; December 12, 1909. (No. 12.) Two males. These specimens fully agree with Sao Paulo females now before us. The species has been recorded from as far north and east as Rio de Janeiro, Brazil (Bolivar), south to the Rio Colorado, Buenos Aires (Berg), west to San Lorenzo, Jujuy (Giglio-Tos), and Chapada, Matto Grosso, Brazil (Bruner). * Leptysma obscura ^Thunberg). 1827. Truxalis obscura Thunberg, Nova Acta Reg. Soc. Scient. Upsal., IX, p. 79. [Brazil.] Misiones. December 2 and 12, 1909. (No. 12.) Two males. These individuals fully agree with males from Sapucay and San Bernardino, Paraguay. The range of this species extends- from Bonito, Pernambuco, Brazil (Rehn), south to the Misiones, west to Chapada, Matto Grosso, Brazil (Bruner; Rehn). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 337 Leptysmina pallida Giglio-Tos. 1894. L[eptysmina] pallida Giglio-Tos, Boll. Mus. Zool. Anat. Comp. Torino, IX, No. 184, p. 35. [Resistencia nel Chaco, Argentina.] Buenos Aires. February 20 and 26, 1909. Two males, one female. The present individuals have been compared with Carcarana, Argentina specimens. The localities from which this species has been recorded, in addition to those given above, are Carcarana and Rosario, Argentina, and with a query from Victoria, Brazil (all by Bruner in error for L. rosea). *Oxybleptella sagitta Giglio-Tos. 1894. Oxyhleptella sagitta Giglio-Tos, Boll. Mus. Zool. Anat. Comp. Torino, IX, No. 184, p. 33. [ViUa Rica, Paraguay.] Misiones. August 2, 1910. One male. This specimen is inseparable from Sapucay, Paraguay, individuals. The records of this .species are from Villa Rica, Paraguay (type), Paraguay (Gigho-Tos), Sapucay, Paraguay (Rehn), Sao Paulo, Brazil (Bruner), and Chapada, Matto Grosso, Brazil (Bruner). The latter record, we believe, probably relates to the closely allied 0. pulcheUa. *Inusia pallida Bruner. 1906. Inusia pallida Bruner, Proc. U. S. Nat. Mus., XXX, p. 660. [Sapucay, Paraguay.] Misiones. April 19, 1909. One male. This species was previously known only from the unique female type. The present individual agrees satisfactorily with the original •description except that the green color of the type is replaced in the present specimen by dull ochraceous, the dark lateral line is «ven more decided than in the type and the proportions are, as usual in opposite sexes, somewhat different. The measurements of the present specimen are: length of body, 20.8 mm. ; length of pronotum, 4.3; length of tegmen, 22; length of caudal femur, 11.5. Oxyblepta puncticeps (Stil). 1860. Opsomala puncticeps St§,l, Kong. Svenska Fregat. Eugenies Resa, Zool., Ins. I, p. 325. [Rio Janeiro, Brazil.] Misiones. April 26, 1909. One male, one female. This species has also been recorded from Rio Janeiro (Stal) and Corumba (Rehn; Bruner), Brazil; Paraguay (Giglio-Tos), Sapucay, Paraguay (Bruner); Caiza and San Francisco, Bolivian Chaco (Giglio-Tos); San Lorenzo, Jujuy (Giglio-Tos), and Resistencia nel Chaco (Bruner), Argentina. 338 PROCEEDINGS OF THE ACADEMY OF L^ay,. Oxyblepta boMsii (GigUo-Tos). 1895. S[tenopola] bohlsii Giglio-Tos, Zoolog. Jahrbiicher, Abth. Syst., VIII, p. 813. [Paraguay.] Misiones. May 20, 1910. One female. The previous records of this species were from Chapada (Bruner) and Corumba (Rehn; Bruner), Brazil; Paraguay (Giglio-Tos), Sapucay, Paraguay (Bruner; Rehn), and Resistencia nel Chaco, Argentina (Giglio-Tos) . *Aleuas vitticollis St&l. 1878. A[leuas] vitticollis Stal, Bihang till K. Svenska Vet.-Akad. Handl., V, No. 4, p. 69. [Sao ("San") Leopoldo, Rio Grande do Sul, Brazil; Mon- tevideo, Uruguay.] Misiones. February 24, 1910. One male. This species has also been recorded from Sapucay, Paraguay (Rehn; Bruner), and Corumba, Matto Grosso, Brazil (Rehn; Bruner). ♦Aleuas brachypterus Bmner. 1906. Aleuas brachypterus Bruner, Proc. IJ. S. Nat. Mus., XXX, p. 667. [Sapucay, Paraguay.] Misiones. February 2, 1911. (No. 39.) "On water plant." One female. The only previously known locality for the species was that of the type. It seems very probable to us that this is the female sex of vitticollis, the material before us, consisting of four females, differing from vitticollis males only in such characters as are sexual, using the term in the sense of known sexual differences in the closely allied A. gracilis. Aleuas lineatus StS.1. 1878. A[leuas] lineatus StM, Bihang till K. Svenska Vet.-Akad. Handl., V, No. 4, p. 70. [Buenos Aires; Uruguay.] Caucete, Prov. of San Juan. Elev. 567 meters. January 13, 1909. One male, one female. San Ignacio, Prov. of Mendoza. Elev. 1,235 meters. April 4, 1908. One male, one female. These specimens are seen to have longer tegmina and wings than two pairs from Carcarana, when compared with the same. In the males from Caucete and San Ignacio the tegmina surpass the tips of the caudal femora by very nearty or quite the pronotal length, while in the Carcarana males the difference is hardly ijiore than half of the same. In the females the discrepancy is less decided, but still quite apparent. This species is known to range from Sapucay, Paraguay (Bruner),. 1913.] NATURAL SCIENCES OF PHILADELPHIA 339 south to Buenos Aires and Uruguay (Stal), west to San Ignacio, Mendoza and Caucete, San Juan, Argentina. Abracris^i nebulosa (Bruner). 1900. Jodacris (?) nebulosa Brunei-, Sec. Rep. Merch. Locust Invest. Comm. Buenos Aires, p. 67. [Asuncion, Paraguay; Prov. of Tucuman, Argentina.] Misiones. May 6, 1910. One female. This species has also been recorded from Corumba (Bruner), Chapada (Rehn), and Victoria (Bruner), Brazil, Paraguay (Giglio- Tos), and Sapucay, Paraguay (Bruner; Rehn). *Abracris signatipes (Bruner). 1906. Omalotettix signatipes Bruner, Proc. U. S. Nat. Mus., XXX, p. 673. [Sapucay, Paraguay.] Misiones. November 9, 1909. One male, four females. This species has an extensive range to the northward, the present locality constituting its most southerly known limit of distribution. Osmiliola aurita Giglio-Tos. 1897. 0[smiUola] aurita Giglio-Tos, Boll. Mus. Zool. Anat. Comp. Torino, XII, No. 302, p. 33. [San Lorenzo, Jujuy, Argentina; Caiza, BoUvian Chaco.] Misiones. September 5, 1909; October, 1910. Two males, one female. The pair of this species taken October, 1910, were in coitu. This very interesting species, in addition to the localities given above, has been recorded from Pernambuco, Brazil, and Chapada, Matto Grosso, Brazil, both by Bruner. Schistocerca infumata Scudder. 1899. Schistocerca infumata Scudder, Proc. Amer. Acad. Arts and Sci., XXXIV, p. 457. [Montevideo, Uruguay; Brazil.] Misiones. May 7 and 23, 1910. (No. 15.) Two females. Posadas, Misiones. Elev. 80 meters. March 3, 1909. Two males. One of the female individuals is labelled ''Common. " Bruner says this form, "is quite generally distributed over Argentina and Uruguay along the La Plata River and northward into Brazil." The only definite records aside from those above mentioned are from Sapucay, Paraguay (Rehn; Bruner). *i Bruner's genus Omalotettix equals this Walkerian genus, according to Kirby, Synon. Catal. Orth., Ill, p. 428. 340 PROCEEDINGS OF THE ACADEMY OF [May,. Sohistocerca paranensis (Burmeister). 1861. Acridium. paranense Burmeister, Reise durch La Plata Staat., I,, p. 491. [La Plata Region.] Misiones. December 1, 1910. (No. 1.) ''Very common." One male. Buenos Aires. May 6, 1907. One male, one female. La Carlota, Prov. of Cordoba. Elev. 142 meters. May 7, 1907. One male. Alto Pencosa, Prov. of San Luis. Elev. 660 meters. February 2, 1908. One adult female, one immature male, one immature female. Pedregal, Prov. of Mendoza. Elev. 696 meters. January 3, 1907. One female. Mendoza, Prov. of Mendoza. Elev. 767 meters. December 12-13, 1907 and 1908. Three males, one female. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters, November 28, 1907; December 7-16, 1907. Three males, three females. The La Carlota individual belongs to the peculiar dwarfed form of the species. The Mendoza and Chacras de Coria series are very pale, similar to spring specimens from Carcarana received from Bruner. *Atraclielacris olivaceus (Bruner). 1911. Dichroplus olivaceus Bruner, Ann. Carneg. Mus., VIII, p. 133. [Chapada, Matto Grosso, Brazil.] Misiones. January, 1911; January 12, 1911. (No. 35.) Two males, one female. This species appears to us to be an Atrachelacris and not a Dichro- plus as described. From A. unicolor it differs in the more elongate and distad subfalcate cerci of the male, more compressed form, broader fastigium, broader and distinctly sulcate dorsal section of the frontal costa, shorter and smaller eyes and more mottled greenish coloration. There is no close relationship of this form to A . gramineus Bruner. *2 In addition to the above specimens, we have before us a single female from Sapucay, Paraguay (Hebard Collection), taken January 20, 1905 (Foster). The only difference worthy of note is that in the Sapucay female the fastigium is even wider than in the Misiones female. The localities from which the species is known are Chapada, Matto Grosso, Brazil, Sapucay, Paraguay, and the Misiones, Argentina. ^ Ann. Carneg. Mus., VIII, p. 129. This species equals A. unicolor Bruner, 1900 {nee Giglio-Tos, 1894). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 341 Dichroplus pratensis Bruner. 1900. Dichroplus pratensis Bruner, Sec. Rep. Merch. Locust Invest. Comm. Buenos Aires, p. 74, figs. 36 and 37. [Provinces of Santa Fe and Buenos Aires, Argentina.] Buenos Aires. February 20, 1908. One female. La Carlota, Province of Cordoba. Elev. 142 meters. May 7-9, 1907. Four males. San Juan, Prov. of San Juan. Elev. 673 meters. January 17, 1909. One female. Mendoza, Prov. of Mendoza. Elev. 767 meters. March 31, 1908. One female. San Ignacio, Prov. of Mendoza. Elev. 1,235 meters. March 5-22, 1908; April 5, 1908. Four females. The Buenos Aires and San Juan individuals are similar in coloration to four specimens from Carcarana, Argentina, the San Juan female being slightly smaller than the others of that sex. The La Carlota, Mendoza, and San Ignacio representatives are very somberly colored with little contrast in the markings, the general tone varying from broccoli brown to clove brown. The La Carlota specimens have the reduction in contrast more decided than in any of the other individuals, while in size they average larger than the Carcarana specimens. The females from San Juan and Mendoza Provinces are all slightly or considerably smaller than Carcarana or Buenos Aires individuals of the same sex. The localities in Mendoza and San Juan here given constitute the western limit of the range of the species. Dichroplus elongatus Giglio-Tos. 1894. D[ichroplus] elongatus Giglio-Tos, Boll. Mus. Zool. Anat. Comp., Torino, IX, No. 184, p. 23. [San Pablo, Province of Tucuman, Argentina; Villa Rica and Asuncion, Paraguay.] San Juan, Prov. of San Juan. Elev. 673 meters. January 12-22, 1909. Twenty males, nine females. Caucete, Prov. of San Juan. Elev. 567 meters. January 13 and 17, 1909. Eighteen males, ten females, one immature female. La Paz, Prov. of Mendoza. Elev. 504 meters. December 19, 1909. One male. Pedregal, Prov. of Mendoza.. Elev. 696 meters. November 20, 1906; December 12, 1906. Two males. Mendoza, Prov. of Mendoza. Elev. 767 meters. January 3, March 14 and 31, April 24, May 7, 11, and 31, June 5, December 3, 5, and 12, 1908. Eleven males, eleven females. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. Feb- 342 PROCEEDINGS OF THE ACADEMY OF [May, ruary 7, 1907; March 15 and 16, 1907 and 1908; April 7, 10, and 18, 1907. Five males, two females. San Ignacio, Prov. of Mendoza. Elev, 1,325 meters. January 15, 1909; March 15 and 22, 1908; April 5, 1908; December 13, 1908. Eleven males, nine females. Potrerillos, Prov. of Mendoza. Elev. 1,368 meters. February 23, 1908. One male. Buenos Aires. May 3, 1907. One female. This very interesting series of one hundred and eleven specimens shows that considerable variation in size and color is present in the species. Apparently the size variation is more geographic and enviromnental than individual. The San Juan and Caucete series are very similar in proportions and size, such individual variation In the latter as is noticed being found in both lots. The La Paz, Pedre- gal, Mendoza, and large portion of the Chacras de Coria and San Ignacio series are uniformly smaller, with shorter tegmina and consequent more robust appearance. Two males and two females from San Ignacio and several males from Chacras de Coria are similar in general form to the San Juan and Caucete lots. A single male from Mendoza is of similar proportions, but the size is no greater than the other Mendoza specimens. Apparently at these three localities the differences are environmental, as they are decided and correlated with color characters. Such differences produced by isimilar agencies are frequently found in species of the allied North American genus Melanoplus. The first color type, which almost invariably has longer tegmina than the second, is always paler, the base color varying from buff to nearly ochraceous, with the median portion of the dorsum more or less suffused with tawny to chestnut. The postocular bars are always decidedly indicated and the base color of the femora and tibiae in the two forms varies with the general base color. The second type has the base color nearer gamboge and saffron yellow, but little evident, however, as the overlying suffusion of from clove brown to clay color is, as a rule, heavier and more extensive than in the first type, permitting less contrast between the region of the postocular bars and other areas. The females of this latter type are much duller than the male. The dark suffusion of the sharply delimited dorsal two-thirds or so of the external face of the caudal femora varies greatly in intensity, usually more solid and darker in the individuals of the second type. Representative individuals of both sexes taken at random from the larger series measure as follows: 1913.] NATURAL SCIENCES OF PHILADELPHIA. 343 San Juan (Type 1). Caucete (Type 1). Male. Female. Male. Female. mm. mm. mm. mm. Length of body 22.5 28. 21.5 25.2 Length of pronotum 4.5 6. 4.6 6. Length of tegmen 19. 22.5 18. 21.2 Length of caudal femur 11.8 14.7 11.5 14.5 San Ignacio (Type 1). Male. Female, mm. mm. Length of body 21.5 28 . 5 Length of pronotum 4.5 6.2 Length of tegmen ;. ' 17.8 22. Length of caudal femur _ 11.5 15. Mendoza (Tj-pe 2). San Ignacio (TjT)e 2). Male. Female. Male. Female. mm. mm. mm. mm. Length of body 19. 25.2 21. 26.5 Length of pronotum 4.2 5.5 4.5 5.5 Length of tegmen 15.5 18.3 15.5 19. Length of caudal femur 10.2 13. 10.5 13.5 This species has been recorded from as far north as Villa Rica and Asuncion, Paraguay, and San Pablo, Tucuman, Argentina, south to the Provinces of Santa Fe, Cordoba, Mendoza, and Buenos Aires, Argentina. Dichroplus punctulatus (Thunberg). 1824. Gr[yllus] punctulatus Thunberg, Mem. I'Acad. Imp. Sci. St. Petersb., IX, p. 408. [BrazU.] Misiones. January 5, 1909; February 16, 1910; November 9, 1909; December 2-30, 1909-1910. (Nos. 26 and 33.) Four males, eight females. Buenos Aires. May 6, 1907. One female. Los Cisnes, Argentina. May 13, 1907. One female. This series shows considerable color and size variation, the most striking of which is found in a single female from Misiones, which is distinctly larger than the average of the species and has the proximo- dorsal pale band on the caudal femora and the "hour-glass "-shaped figure on the dorsum of the pronotum cream-buff, in striking contrast to the remainder of the body color. This widely distributed species ranges south as far as the Rio Negro region of Patagonia. 23 344 PROCEEDINGS OF THE ACADEMY OF [May, Dichroplus conspersus Bruner. 1900. Dichroplus conspersus Bruner, Sec. Rep. Merch. Locust Invest. Comm. Buenos Aires, p. 76, fig. 41. [Southern Santa Fe and eastern Cordoba Provinces, Argentina.] Buenos Aires. May 3, 1907. One female. This specimen has been compared with Carcarana individuals received from Bruner. The localities given above are all known for the species. * Dichroplus dubius Bruner. 1906. Dichroplus dubius Bruner, Proc. U. S. Nat. Mus., XXX, p. 682. [Sapucay, Paraguay.] Misiones. January 3-14, 1910; December 12, 1910. (No. 9.) Two males, two females. These individuals are found to be inseparable from topotypes. The Misiones and Sapucay, Paraguay, are the only localities known for the species. Dichroplus vittatus Bruner. 1900. Dichroplus vittatus Bruner, Sec. Rep. Merch. Locust Invest. Comm. Buenos Aires, p. 77, figs. 43 and 44. [Provinces of Santa Fe, Cordoba, San Luis ("Louis") and Mendoza ("Mendosa"), Argentina.] San Juan, Prov. of San Juan. Elev. 673 meters. January 16-17, 1909. Three males, two females. Caucete, Prov, of San Juan. Elev. 567 meters. January 11, 1909. One female. Mendoza, Prov. of Mendoza. Elev. 767 meters. March 20, April 24, May 1-31, June 12, 1908. Twelve males, four females. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. Feb- ruary 9, April 5 and 7, 1907. One male, two females. San Ignacio, Prov. of Mendoza. Elev. 1,235 meters. March 23, April 5, 1908. Three males, one female. Cordillera de Mendoza. March 20, 1908. One male, one female. We have before us, in addition to the above series, two pairs of typical material from Rosario, received from Bruner. It is evident that the insect varies greatly in size, wholly individually so it appears. The Mendoza series alone contains specimens of both sexes showing this very clearly, the extremes of both sexes measuring as follows: length of body, d" 14.3-17.5 mm., 9 20-24.2; length of pronotum, d" 3.3-4, 9 4.2-6; length of tegmen, cT 5.2-6.8, 9 7-9.2; length of caudal femur, cf 8.6-9.5, 9 11-13. All of the individuals in the present series are brachypterous. In color the variation is considerable, but apparently this is almost wholly geographic. The series from Mendoza Province have a more 1913.] NATURAL SCIENCES OF PHILADELPHIA. 345 olive green tone than any of the Caucete or San Juan specunens, which are more yellowish on the pale areas and more contrastingly colored. The species has been reported from the Provinces of Santa Fe, Cordoba, San Luis, San Juan, and Mendoza, Argentina. *Dichroplus brasiliensis Bruner. 1906. Dichroplus brasiliensis Bruner, Proc. U. S. Nat. Mus., XXX, pp. 678, 682. [Victoria, BrazU.] Misiones. December 14, 1910. (No. 28.) One male. This specimen measures as follows: length of body, 19.5 mm.; length of pronotum, 4.2; length of tegmen, 16; length of caudal femur, 10.5. The records of the species are from Victoria (Bruner), Sao Paulo (Rehn), Espirito Santo (Rehn), Rio de Janeiro (Bruner; Rehn), Brazil and the Misiones. * Dichroplus robustulus St&l. 1878. P[ezotettix] robustulus St&l, Bihang till K. Svenska Vet.-Akad, Handl., V, No. 9, p. 7. [Sao Leopoldo, southern BrazU.] Misiones. May 6, 1910; April 23, 1909; December 14, 1910. (No. 22.) Three females. This well-marked species has previously been reported from the localities given above and Chapada, Matto Gros.so, Brazil (Bruner). Dichroplus bergii (St&l). 1878. P[ezotettix] Bergii Stkl, ibid., V, No. 9, p. 6. [Buenos Aires, Parand, Corrientes, Argentina.] Misiones. March 15-27, 1909; April 23 and 30, 1910. Four males, ten females. Posadas, Misiones. Elev. 80 meters. March 6, 1907. Two females. Buenos Aires. February 20, 1909. Two females. Mendoza, Prov. of Mendoza. Elev. 767 meters. June 12, 1908. One female. This species shows considerable variation in size as well as in the intensity of the broad postocular bars. The caudal tibiae of all the Misiones and Mendoza individuals are decided deep glaucous blue, the Buenos Aires specimen agreeing with Rosario and Carcarana representatives in having these oil green. In the series from Sapucay, Paraguay, previously recorded by us,*^ the color of the tibiae is deep indigo blue in about half of the males and deep oil green in all of the females, the remainder of the males varying in this « Proc. Acad. Nat. Sci. Phila., 1907, p. 188. 346 PROCEEDINGS OF THE ACADEMY OF [May, respect from deep oil green to a paler tone of the same, with one individual having them glaucous green. This species has been recorded from as far north as Bolivia (Bruner), Province of San Pedro, Paraguay (Giglio-Tos), and Brazil (Bruner), south to Uruguay (Bruner) and Buenos Aires (Stal) , west to Mendoza. *Leiotettix sanguineus Bruner. 1906. Leiotettix sanguineus Bruner, Proc, U. S. Nat. Mus., XXX, p. 687. [Sapucay, Paraguay.] Misiones. December 14, 1910. (No. 29.) Two males, one female. These specimens are smaller than topotypes, which are also before us, although otherwise they are inseparable. A pair of the Misiones individuals measure as follows: Male. Female. Length of body 16.5 mm. 20.2 mm. Length of pronotum 3.5 " 4.5 '* Length of tegmen 13.5 " 16.2 " Length of caudal femur 9.2 " 11.3 " Information with the specimens is to the effect that the species is common. It has only been recorded from Sapucay, Paraguay, Chapada, Matto Grosso, Brazil, and the Misiones, Argentina. Leiotettix politus n. sp. Type: cf ; Misiones, Argentina. December 12, 1910. (P. Jor- gensen. No. 6. [Acad. Nat. Sci. Phila., type No. 5,219.] Allied to L. sanguineus Bruner, but differing in the narrower interspace between the eyes, less protuberant and more ovoid eyes, less regularly rugulose dorsum of the pronotum, the more decided median carina of the same, the decidedly blunt instead of strongly acute prosternal spine, the slenderer distal portion of the cerci, the more brownish coloration and pale reddish caudal tibiae. There is no close relationship to either L. flavipes Bruner or hastatus Rehn. Size small; form moderately compressed. Head with the interspace between the eyes but little more than half the width of the fastigium, moderately expanding caudad; fastigium considerably declivent, distinctly broader than long, rounding into the decidedly retreating face; frontal costa regularly expanding caudad, wider even dorsad than the interspace between the eyes, moderately excavate immediately dorsad and ventrad of the ocellus, dorsal portion strongly punctate; Fig. U.— Le- iotettix po- litus n. sp. Dorsal outline of head and pronotum of type. (X3.) 1913.] JNATURAL SCIENCES OF PHILADELPHIA. 347 eyes broad subovoid, the greatest width about three-fourths of the length, not prominent when viewed from the dorsum; antennae sUghtly longer than the head and pronotum together. Pronotum with the greatest dorsal width about two-thirds of the length, the width of the dorsum subequal except for the faintest widening near the caudal margin; cephalic margin truncate, caudal margin obtuse- angulate with the immediate angle broadly rounded; median carina distinct, sharp, but not high; lateral shoulders narrowly rounded; transverse sulci three in number, the caudal one placed slightly caudad of the middle; lateral lobes with the greatest dorsal length greater than the depth, ventral margin broadly obtuse-angulate with the cephalic portion sinuate; surface of the dorsum and lateral lobes, aside from the usual glabrous area on the prozona of the lateral lobes, strongly impresso-punctate, on the dorsum rugulose, the rugae arranged in a crudely linear fashion on the metazona. Tegmina surpassing the tips of the caudal femora by nearly the length of the head, narrow, the apex completely rounded. Prosternal spine strongly retrorse, blunt conical, nearly in contact with the mesoster- nal margin; interspace between the mesosternal lobes decidedly longitudinal, the length contained about twice in the width, the margins slightly diverging caudad, the angles well rounded; metasternal lobes in contact for the greater portion of their length, the suture linear. Furcula very minute, subparallel, closely placed, linear lobes; supra-anal plate subtrigonal in general form, the Fig. 15.— Le- margins rounded, the apex obtuse, proximal half with utus\. sp. a well-impressed medio-longitudinal sulcus ; cerci Lateral falcate, considerably^ exceeding the supra-anal plate j^pg^ of ab- in length, the proximal third broader, sharply narrow- d o m e n ing, thence subequal to the tapering, acute distal (^ >< 4 ) extremity, when seen from the dorsum the form of the cercus is slightly sigmoid; subgenital plate considerably produced, narrowing, when seen from the side straight except for a slight •proximal arcuation, apex blunt, rounded. Caudal femora with their tips very slightly surpassing the apex of the abdomen; caudal tibiae armed on the external margin with nine spines. General color russet dorsad, becoming mars brown on the pro- notum, ventral surface wax yellow; a pair of more or less distinct subparallel clove brown lines extend from the fastigium caudad to the caudal margin of the dorsum of the pronotum, the area between these on the head wax yellow caudad, on each side a narrow line of 348 PROCEEDINGS OF THE ACADEMY OF [May, the same color extends caudad from the eye on the head alone, these cutting off from the dorsal color a broad postocular bar, which is contrasted ventrad with the uniform wax yellow gense. The latter color also covers the face and the ventral half of the lateral lobes of the pronotum; eyes very pale broccoli brown spotted with clove brown; antennae pale ochraceous tipped with clove brown. Dorso- median portion of the lateral lobes of the pronotum with a shining bar of blackish. Ventro-lateral carina of the caudal femoral pagina wax yellow, ventral face of the femora and the caudal tibiae Chinese orange, the spines pale yellow tipped with black; caudal genicular arches black. Measurements. Length of body 18 . mm. Length of pronotum '... 4. " Length of tegmen : 15 .3 " Length of caudal femur 10.2 " In addition to the type, we have before us a paratypic male which shows no important differences from the type. A label with the material states that the species is "very common." Leiotettix pulcher n. sp. Type: cf ; Misiones, Argentina. December 12, 1910. (P. Jor- gensen, No. 5.) [Acad. Nat. Sci. Phila., type No. 5,222.] Closer to L. hastatus Rehn^ than to any other species of the genus, but differing from that in the smaller size, distinctly narrower and less declivent fastigium, which is also more decidedly excavate, the more compressed pronotum, more angulate caudal margin of the disk of the pronotum, the different sculpture of the supra-anal plate, in the more elongate cerci, which are subfalcate distad, and in the less produced subgenital plate. The color of the caudal tibiae immediately separates this species from flavipes Bruner, but in addi- tion to that the present species can be distinguished by the narrower distal section of the cerci, shorter subgenital plate, and less declivent and more excavate fastigium. The female is very similar to that sex of flavipes, but the pronotum is more constricted, with the caudal margin of the lateral lobes straighter and more vertical, and the tibiae are red. Size medium; form rather slender. Head with the occiput very slightly arcuate; interocular space broad, hardly narrower than the greatest width of the fastigium and approximately equal to half of ** Proc. Acad. Nat. Sci. Phila., 1907, p. 189, fig. 1.3. [Sapucay, Paraguay.] 1913. NATURAL SCIENCES OF PHILADELPHIA. 349 the width of one of the eyes; fastigium moderately declivent, round- ing into the frontal eosta, considerably excavate ; frontal costa broad, nearly as wide as the interspace between the eyes, slightly narrowing dorsad, subequal from slightly dorsad of the insertion of the antennae ventrad, broadly and deeply sulcate from slightly dorsad of the ocellus, dorsal portion impresso-punctate; face consid- erably retreating; eyes ovoid, not very prominent, dis- tinctly longer than the infra-ocular portion of the sul- cus; antennae slightly exceeding the length of the head and pronotum combined. Pronotum verj' appreciably constricted mesad; dorsum with the cephalic margin pig. 16.— Le- arcuato-truncate, caudal margin very broadly obtuse- iotettix angulate with the immediate angle subtruncate and the gp. ^ Dor- lateral portions of the angles slightly sinuate, greatest sal outline caudal width of the disk contained about one and one- ^ n d p r o- half times in the length of the same ; lateral angles nar- . n o t u m rowly rounded, more decided on the metazona than (*X35^^' on the prozona ; median carina very weak on the prozona, moderately elevated on the metazona; principal transverse sulcus placed very slightly caudad of the middle; lateral lobes slightly longer than deep, ventral margin decidedly obtuse-angulate mesad. Tegmina very slightly surpassing the tips of the caudal femora, subequal in width for the greater part of their length, apex rotundato-truncate. Pro- sternal spine conical, erect; interspace between the mesosternal lobes strongly longitudinal, the width contained nearly twice in the length, internal margins of the lobes slightly arcuate, caudal angle hardly rounded; metasternal lobes contiguous. Furcula very short, contiguous, spiniform; supra-anal plate crudely semi-ovate in outline, the apex obtuse-angulate, laterad of which on each side is placed another very slight angulation, proximal two-thirds of the plate with a distinct median sulcus bounded laterad ^^^^^^^^ by considerably elevated carinse, remainder of the plate Ci /\7 appreciably excavate; cerci surpassing the apex of the ^"^--......^jT^ supra-anal plate, considerably tapering in the proximal half, thence subfalciform and slightly excavate mesad on the external face, when seen from the dorsum they are moderately in-bowed in a sigmoid fashion; sub- genital plate moderately produced, the marginal length subequal to the proximal width, margin slightly arcuate when seen from the side, form of the elevated margin when seen from the dorsum semi-elliptical, the apex not Fig. 17.— Le- iotettix pid- cher n. sp. Lateral outline o f apex of ab- d o m e n of type. (X4.) 350 PROCEEDINGS OF THE ACADEMY OF [May, marginal, the true apex bluntly tuberculate. Cephalic and median femora slightly inflated. Caudal femora slender; caudal tibiae armed on the external margin with nine spines. General color of the dorsum prout's brown, passing on the tegmina into pale raw umber. Head with the face bice green, passing into apple green on the gense; a broad postocular bar greenish-black, margined dorsad by a narrow area of yellowish; eyes tawny-olive; antennae prout's brown. Postocular bar continued over the lateral lobes of the pronotum, becoming obsolete on the metazona, the dorsal portion of the bar decidedly greenish, ventral portion black, remainder of lateral lobes ecru drab cephalad, greenish caudad. Cephalic and median limbs between oil and bice green in color, lined more or less with black. Caudal femora oil green dorsad, external face citron yellow ventrad, genicular arched black; caudal tibise and tarsi pale coral red, spines salmon at base, distad tipped with black. Allotype: 9 ; data similar to that of the type. Differing from the male sex in the following important characters ; Size moderately large; form moderately robust. Interspace between the eyes about equal to three-fourths the width of one of the eyes; fastigium shallowly excavate; frontal costa broad, very faintly expanding caudad, excavate only in the vicinity of the ocellus; eye more reniform than ovate. Interspace between the mesosternal lobes contained about one and one-half times in the length of the same; metasternal lobes but shghtly separated caudad. Coloration very similar to that of the male, but the dorsal color is more hazel than prout's brown. Measurements. Type Allotype (male). (female). Length of body 20. mm. 25.8 mm. Length of pronotum 4.6 " 6. " Length of tegmen 16. " 19.3 " Length of caudal femur 11.2 " 14.5 '' In addition to the type and allotype, we have before us two para- typic males. These males fully agree with the type, and the differen- tial characters of the female sex are given above. A label with the specimens tells us they are "very common." Paradichroplus nigrigena n. sp. Type: cT ; Misiones, Argentina. May 1, 1909. (P. Jorgensen.) [Acad. Nat. Sci. Phila., type No. 5,220.] A very peculiar species which seems to be closer to P. bilohus and 1913.] NATURAL SCIENCES OF PHILADELPHIA. 351 hrunneri Giglio-Tos than to any of the other forms of the genus. From the former it can be immediately separated by the absence of decided lobiform furci>la, while from the latter it can readily be distinguished by the heavier, deeper head, the more vertical face, the more elongate supra-anal plate, the more' tapering and strongly incurved cerci, the less produced subgenital plate and very different coloration. Size medium; form robust. Head not elevated dorsad of the k-vel of the pronotum, the interocular region and the fastigium regularly declivent; interocular width moderate, slightly greater than the interantennal width of the frontal costa, hardly more than a third the width of the eye; fastigium distinctly transverse, margins distinct and rectangulate, surface of the fastigium and the inter- ocular portion of the vertex very slightly excavate; face moderately retreating, subvertical for a very short distance dorsad, forming a slight obtuse angle at the junction with the fastigium; frontal costa in general subequal in width, the average breadth slightly less than that of the interocular portion of the vertex, strongly narrowing dorsad to the junction with the fastigium, slightly narrowed imme- diately ventrad of the ocellus, sulcate throughout ; antennae about two and one-half times the length of the pronotum; eye not at all prominent when seen from above, in outline reniform-ovate, the infra-ocular portion of the genae about two-thirds the length of the eye. Pronotum roughly semicylindrical, the dorsum regularly rounding into the lateral lobes, no shoulders present but a very brief Fig. 18. — Paradichroplus nigrigena n. Fig. 19. — Paradichroplus nigrigena n. sp. Dorsal outline of apex of abdo- sp. Lateral outline of apex of abdo- men of type. ( X 4.) men of type. ( X 4.) carina indicated cephalad on each side; cephalic margin arcuate with the faintest possible median emargination, caudal margin very broadly but decidedly emarginate; median carina faintly indicated, but continuous; prozona twice as long as the metazona; lateral lobes decidedly longitudinal, the depth contained nearly twice in the length, ventral margin obtuse-angulate mesad; surface of the metazona strongly punctate when compared with the prozona. Tegmina linear, hardly equal to the length of the pronotum, very 352 PROCEEDINGS OF THE ACADEMY OF [May, slightly expanding distad, the greatest width contained slightly more than three times in the length, apex rounded. Prosternal spine stout, erect, conical, blunt; interspace between the mesosternal lobes distinctly but not greatly transverse, internal margins of the lobes well rounded; metasternal lobes subcontiguous caudad. Abdominal segments with a distinct median longitudinal carina; furcula present as very brief trigonal acute subcontiguous fingers; supra-anal plate trigonal, the margins regularly converging, the apex acute, sulcate mesad for the entire length of the plate, a pair of deeper and broader converging lateral depressions separated from the median sulcation by low ridges; cerci slightly exceeding the supra-anal plate in length, styliform, the base broad, thence regularly narrowing to the blunt apex, the narrowing being wholly due to the oblique excision of the ventral margin, the dorsal margin being straight, when seen from the dorsum the distal two-thirds of the cercus is regularly incurved; subgenital plate broad, the proximal width considerably exceeding the length of the lateral margin, when seen from the side the lateral margin is straight, when seen from the dorsum the margins are seen to be converging at an acute angle, the apex slightly produced and labiate. Cephalic and median femora considerably inflated and bowed. Caudal femora about two and one-half times as long as the pronotum, rather slender; caudal tibiae armed on the external margin with nine spines. General color of the dorsum prout's brown. Head with the face and cephalic portion of the gense tawny-olive, remainder of the gense shining seal brown, partially separated from a postocular area of the same color by a blotch of naples yellow, the postocular section being bordered dorsad by a narrow edging of the same yellow; eyes ochra- ceous; antennae ochraceous-rufous. Pronotum with a distinct subequal arcuate postocular bar of shining seal brown, the dorsal margin of which is weakened and poorly defined; ventral portion of the lateral lobes naples yellow, sharply delimited dorsad and with a ventral marginal edging of seal brown. Tegmina bistre with a very narrow marginal line of naples yellow dorsad. Venter of the thorax and abdomen cinnamon, this color covermg most of the apex of the abdomen; lateral bars on the abdomen bistre, prominent proximad on the abdomen and becoming obsolete about the middle of the same. Pleura dark bistre with two spots of naple-5 3^ellow, one of which is a continuation of the ventral yellow section of the lateral lobes. Cephalic and median limbs pale oil green, becoming yello\\ish proximad on the femora. Caudal femora oil green on the lateral 1913.] NATURAL SCIENCES OF PHILADELPHIA. 353 face, the dorsal, ventral and internal faces gamboge yellow, the distal extremity almost wholly blackish with a very weak whitish edging to the genicular lobes; caudal tibiae glaucous blue, the spines cream at the base and tipped with black. Measurements. Length of body 18 . mm. Length of pronotum 4.2 ^^ Length of tegmen ^-^ ^^ Length of caudal femur 11-2 The type of this interesting species is unique. Osmilia violacea (Thunberg). 1824. Gr[ijllus] inolaceus Thunberg, Mem. I'Acad. Imp. Sci. St. Petersb., IX, p. 413. [Brazil.] Misiones. March 18-29, 1909-1910; April 5 and 12, 1909; September 1-11, 1910; October 1, 1910; December 12, 1908. (Nos. 16 and 31.) Eight males, seven females. Information with this material is to the effect that the species is "common in forest." The range of this form has not been clearly defined, owing to considerable confusion with other species of the genus, but in Argen- tina it has also been reported from San Lorenzo, Jujuy (Giglio-Tos), Chaco (Bruner) and Tucuman (Bruner). Family TETTIGONIDJE. SubfamUy PHANEROPTERIN.E. *Tetana grisea Bmnner. 1878. T[etana] grisea Brunner, Monogr. der Phaneropt., p. 120, pi. II, fig. 20A-B. [Chile.] Alto Pencosa, Prov. of San Luis. Elev. 660 meters. December '20-22, 1908. Two males. San Juan, Prov. of San Juan. Elev. 673 meters. January 20, 1909. One male. These specimens are referred to this species with some little doubt, :as the fastigium is more or less sulcate and the generic description of Tetana says "non sulcato." The tegmina also appear slightly longer proportionately than in the figure, but the length measure- ments are in accord with those given by Brunner. It is also possible that the individuals from Alto Pencosa are distinct from that from San Juan, but the differences noted are probably individual. 354 PROCEEDINGS OF THE ACADEMY OF [May^ BURGILIS St&I. This hitherto monospecific genus is represented in the present series by three species, none of which are the same as the type species — B. curta (Serville). The following key will assist in the determination of the four species now known. A.— Ovipositor of female nearly straight curta (Serville). AA. — Ovipositor of female distinctly curved. B. — Ovipositor distinctly exceeding the cephalic femora in length. Exposed portion of wings of male very slender, the depth contained over four times in the length of same mendosensis n. sp. BB. — Ovipositor subequal to the cephalic femora in length. Ex- posed portion of wings of male less slender, the depth contained less than four times in the length of same. C. — Tegmina tapering distad; marginal field suddenly narrowed mesad. Costal margin of male tegmina markedly white mesad grandis n. sp. CC— Tegmina tapering gradually distad; marginal field not suddenly narrowed mesad. Costal margin of male tegmina not white mesad missionum n. sp. Burgilis mendosensis n. sp. Type: 9 ; Potrerillos, Prov. of Mendoza, Argentina. Elev. 1,368 meters. December 26, 1907. (P. Jorgensen.) [Acad. Nat. Sci. Phila., type No. 5,221.] The larger ovipositor of this species readily separates it from the other forms before us. In the male the very narrow exposed portion of the wings is sufficiently diagnostic to immediately separate the form. Size medium; form subcompressed. Head with the fastigium of the vertex hardly wider than half of the proximal antennal joint,, moderately declivent, moderately constricted mesad, rather bulbous distad, sulcate; facial fastigium slightly broader than that of the vertex, almost touching the same; antennae about twice the length of the body; eye moderately prominent, subovate, of medium size. Pronotum with the dorsum deplanate, very faintly concave Fig. 20.~Burgilis men- cephalo-caudad, the width of the dorsum H?eT/'oviposito^"of subequal and contained one and one-half times type. (X3.) in the pronotal length ; cephalic margin faintly arcuato-emarginate, caudal margin arcuate, lateral angles continuous and distinct, most decided caudad, wher& they are very slightly diverging; lateral lobes with the depth con- 1913.] NATURAL SCIENCES OF PHILADELPHIA. 355 tained one and one-half times in the length, ventral margin arcuato- -emarginate dorsad of the coxae, ventro-caudal angle and caudal margin broadly rounded, humeral sinus acute-angulate incised. Tegmina two and two-thirds times as long as the head and pronotum, acute lanceolate, the greatest width in the proximal half, distad of which the tegmina taper to the narrowly rounded apex; marginal field in the proximal third of the tegmina but little narrower than the width of the discoidal field in the same region, thence rather abruptly narrowing to slightly distad of the middle of the tegmina where the marginal field becomes non-existent; median vein diverging •at the middle of the tegmen and. reaching the sutural margin of the tegmen, simple; discoidal vein with a single complete ramus which follows the median vein in trend. Wings with their exposed portion slightly longer than half of the tegminal length, narrow, gently tapering to the very acute apex. Cephalic tibiae with the dorsd- caudal margin with four spines aside from the apical one, dorso- •cephalic margin unarmed. Median tibiae with all of the margins armed, the dorso-cephalic with fewer spines than the others. Caudal 'femora subequal to the length of the wings, unarmed ventrad. Ovipositor slightly longer than the head and pronotum together, gently arcuate, moderately robust, tapering, apex acute, ventral margin slightly flattened in the proximal half, dorsal margin serrato- ■dentate for two-thirds of its length, ventral margin more weakly serrato-dentate for half of its length, surface of the ovipositor except on the swollen proximal portion scabroso-dentate ; subgenital plate trigonal with the distal extremity of the margin narrowly truncate. General color clay color, except the tegmina, exposed portion of wings, distal two-thirds of the ovipositor and almost all of the tibiae which are apple green. It is probable that apple green is the general natural coloration. Eyes burnt umber. Tegmina with a brief ■edging on the costal margin and a longer one on the sutural margin buff. Allotype : cf ; Potrerillos, Province of Mendoza, Argentina. Elev. 1,368 meters. January 20,1907. (P. Jorgensen.) [Acad. Nat. Sci. Phila.] The following characters are those of difference from the female sex: Size rather small. Tegmina with the tympanum having the length slightly greater than the width, the apex of the stridulating vein Toundly projecting beyond the general arcuation of the tympanal inargin. Exposed portion of the wings two-thirds as long as the 356 PROCEEDINGS OF THE ACADEMY OF [May tegmina. Cerci simple, tapering in the proximal two-thirds, straight, distal third regularly falcate inward, the same portion sub- depressed, the apex spinif orm and slightly turned dorsad ; subgenital plate moderately produced, the margin of the same deeply arcuato- emarginate, no styles present. Color in general similar to that of the type, but the pleura, lateral lobes of the pronotum, and the base of the limbs cream-buff, the tibise tawny (the cephalic almost liver brown), and the proximal portion of the tegmina of the general color. Tegmina with no pale sutural edging, the posterior ulnar vein lined with chestnut distad from the apical portion of the tympanum. Measurements. Type Allotype (female). (male). Length of body 20.7 mm, 15.3 mm. Length of pronotum 4.2 " 3.5 " Length of tegmen ' 18.5 " 15.5 " Greatest width of tegmen 4. " 3.5 " Length of exposed portion of wing 10. " 9.2 " Length of caudal femur 24.5 " 20.2." Length of ovipositor 8. " In addition to the type and allotype, we have before us a pair from the type locality (January 29, 1907; December 27, 1907) and a single female from San Ignacio, Province of Mendoza (March 22, 1908). The additional Potrerillos female is slightly smaller than the type, the San Ignacio female distinctly smaller, but otherwise they are inseparable. Burgilis grandis n. sp. Type: 9 ; Jujuy, Prov. of Jujuy, Argentina. April, 1911. (P. Jorgensen.) [Acad. Nat. Sci. Phila., type No. 5,223.] The combination of small ovipositor and decidedly tapering teg- Fig. 21. — Burgilis grandis n. sp. Out- Fig. 22. — Burgilis grandis n. sp. Outline line of ovipositor of type. (X 3.) of tegmen of male allotype. ( X 2.) mina are diagnostic of this species, the character of the marginal field of the male tegmina also being very distinctive. Size medium; form little compressed. Head with the fastigium 1913.] NATURAL SCIENCES OF PHILADELPHIA. 357 narrower than in B. mendocensis, but narrower and less decidedly sulcate; frontal fastigium similar to that of mendocensis; eyes ovate, moderately prominent. Pronotum similar to that of mendocensis, but with the sinuation of the ventral margin less decided and the humeral sinus subrectangulate. Tegmina about three times as long as the head and pronotum combined, the general form similar to that of mendocensis, but the marginal field is shghtly broader and the discoidal vein has two distinct rami. Exposed portion of the wings twice the length of the pronotum, apex slightly less acute than in ynendocensis. Cephalic tibise with five to six spines on the dorso-cephalic margin. Ovipositor subequal to the head and prono- tum together in length, well arcuate, tapering, the dorsal margin serrato-dentate on the distal half, irregularly serrulate on the proximal half, ventral margin crenulato-serrate distad, becoming weakly crenulate proximad, the surface of the ovipositor scabroso-dentate, subgenital plate broad trigonal with the distal margin rounded. General coloration essentially the same as that of mendocensis, but the tegmina have no buff edging and the dorsum of the head has traces of maroon purple linings and the humeral angles of the prono- tum have broken lines of the same color. Allotype: cf ; Jujuy, Province of Jujuy, Argentina. AjDril, 1911. (P. Jorgensen.) [Acad. Nat. Sci. Phila.] The following characters are those of difference from the female sex: Marginal field of the tegmina very broad, subequal to the breadth of the adjacent portion of the discoidal field; the narrowed distal portion of the tegmina slightly broader than in the female ; tympanum with the length nearly twice the width, speculum more regularly narrowing caudad than in mendocensis. Cerci similar to those of mendocensis, but shorter and less robust; subgenital plate with the distal extremity somewhat wider than in mendocensis. General color similar to that previously described with the following additions : dorsum of the head and pronotum and the dorsal portion of the lateral lobes of the pronotum finely sprinkled with maroon purple, the antennae strongly washed with the same; tegmina with the extreme proximal portion of the discoidal field washed with olive green, the tympanal curve of the posterior ulnar vein, the speculum and the adjacent portion of the tympanum seal brown; remainder of the anal field of the tegmina olive-yellow; marginal field of the tegmina with a broad cream colored margin. 35S PROCEEDINGS OF THE ACADEMY OF [May, Measurements. Type Allotype (female). (male). Length of body 20. mm. 14. mm Length of pronotum 4. " 3.3 Length of tegmen 18.5 " 18. Greatest width of tegmen 4.3 " 4.5 Length of exposed portion of wing 7.4 " 9.8 Length of caudal femur 23.5 " 20.5 Length of ovipositor 5.8 " The type and allotype described above are all of the species seen by us. Burgilis missionum n. sp. Type: 9 ; Misiones, Argentina. December, 1911. (P. Jor- gensen, No. 5.) [Acad. Nat. Sci. Phila., type No. 5,224.] The short ovipositor and gradually tapering tegmina, which have the marginal field not sharply narrowed and unmarked with white, will readily separate this species. Size medium; form little compressed. Head with the fastigium slightly narrower than in grandis and more distinctly sulcate, hardly bulbous at the extremity; frontal fastigium narrower than in the other species examined; eyes ovate. Pronotum of the form of the other species, but shorter; lateral lobes with the depth contained one and a third times in the length of the same, ventro-caudal angle of the same obliquely subtruncate, humeral sinus rectangularly incised. Tegmina three and one-half times as long as the head and pronotum, regularly and not at all strongly tapering distad ; marginal field with its greatest width distinctly less than that of the adjacent portion of Fig. 23. — Burgilis missionum n. sp. Fig. 24. — Burgilis missionum n. sp. Outline of ovipositor of type. Outline of tegmen of male allotype. (X3.) (X2.) the discoidal field, regularly narrowing from the proximal third of the tegmen to near the apex, without any decided point of excision; apex obliquely subtruncate; median vein similar to that of the other species of the genus; discoidal vein with three well-marked rami, all reaching the sutural margin of the tegmen, the distal one practically at the apex. Exposed portion of the wings about half the length of the tegmina, the apex acute. Cephalic tibiae with four spines on the dorso-caudal margin aside from the distal spine. Caudal femora 1913.J NATURAL SCIENCES OF PHILADELPHIA. 359 slightly surpassing the tegmina in length. Ovipositor subequal to the head and pronotum in length, arcuate, slightly tapering, distal half of the dorsal margin serrato-dentate, ventral margin crenulato- dentate for almost the entire length, surface of the ovipositor scabroso- dentate except on the swollen proximal portion; subgenital plate trigonal with the distal margin very narrowly emarginato-truncate mesad. General color pale clay color, the exposed portion of the wings, distal half of the tegmina, anal field of the same, and all or part of the tibiae apple green. We presume apple green was the color of the whole insect in life. Eyes burnt umber. Allotype: cf ; Misiones, Argentina. December 14, 1910. (P. Jorgensen.) [Acad. Nat. Sci. Phila.] . The characters here given are those of difference from the female. Tympanum of the tegmina very similar in form to that of B. grandis, but proportionately smaller; discoidal vein occasionally (on one tegmen) with but two rami toward the sutural margin. Cephalic tibiae occasionally with six spines on the dorso-caudal margin in addition to the distal one. Cerci more elongate than in the other species of the genus, the form nearer that found in mendo- censis, but slenderer, the distal extremity less depressed and slightly more spiniform; subgenital plate arcuato-emarginate distad, flanked laterad by brief styliform processes. General color sulphur yellow on the head and pronotum, passing into buff on the abdomen, tegmina and wings pale apple green, the limbs more or less washed with the same color. Tegmina with the marginal field unicolor; anal field with the tympanum and the longi- tudinal area adjacent to it more or less uniformly prout's brown. Eyes russet. Measurements. Type Allotype (female). (male). Length of body ... 16.5 mm. 14.5 mm. Length of pronotum 3.8 '' 3.3 " Length of tegmen 21.3 " 17.5 " Greatest width of tegmen 4.1 " 3.8 " Length of exposed portion of wing 10. " 8.3 " Length of caudal femur 23. " 20.5 " Length of ovipositor 6. " In addition to the type and allotype, we have before us two para- typic males taken January 12, 1910, and December 12, 1909. These specimens show no noteworthy differences from the allotype. Infor- 24 360 PROCEEDINGS OF THE ACADEMY OF [May, mation with the specimens is to the effect that the species is "very common." *Aniara proxima Brunner. 1891. A7iiara proxmia Brunner, Verhandl. K. K. Zool.-bot. Gesellsch. Wien, XLI, p. 58. [Lages, Santa Catharina, Brazil.] Misiones. November, 1910. (No. 9.) One male. This specimen fully agrees with the original description except that it is of larger size. The dimensions are as follows: Length of body 21. mm. Length of pronotum 4.8 " Length of tegmen 30.5 " Width of tegmen at proximal third 5.8 '' Length of caudal femur 19. " The species has also been recorded with a query from Sapucay, Paraguay, by Caudell. Hyperophora brasiliensis Brunner. 1878. H[yperophora] brasiliensis Brunner, Monogr. der Phaneropt., p. 126. [Brazil.] Posadas, Misiones. Elev. 80 meters. March 6, 1909. One male. Misiones. April 30, 1909; December 12, 1909. Two males. These specimens are slightly smaller than individuals from Sapucay, Paraguaj^ but otherwise inseparable. This species has been recorded from Brazil (Brunner), Sapucay (Caudell; Rehn) and Prov. of San Pedro (Giglio-Tos), Paraguay, and Buenos Aires, Argentina (Giglio-Tos). Hyperophora angustipennis Brunner. 1891. Hyperophora angustipennis Brunner, Verhandl. K. Iv. Zool.-bot. Gesellsch. Wien, XLI, p. 59. [Cordoba, Argentine Republic] Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. March 13, 1907. One male. This beautiful species has only been recorded from Cordoba, Santa Rosa, Salta (Giglio-Tos), and Chacras de Coria.^^ Hyperophora major Brunner. 1878. H[yperophora] major Brunner, Monogr. der Phaneropt., p. 126, pi. II, tig. 24a-6. [Buenos Aires.] Misiones. December 12, 1909. One female. Corrientes, Prov. of Corrientes. Elev. 76 meters. March 3, 1909. One male. ^ The record of this species from Sapucay, Paraguay, by the author (Ent. News, XVI, p. 42) is erroneous, as a re-examination of the material shows it to belong to H. minor, a species then unknown to him. 1913.] NATURAL SCIENCES OP PHILADELPHIA. 361 Embarcacion, Prov. of Salta. April, 1911. One female. Jujuy, Prov. of Jujuy. April, 1911. Two males. Pedregal, Prov. of Mendoza. Elev. 696 meters. December 1-19, 1906. Two males, one female. Mendoza, Prov. of Mendoza. Elev. 767 meters. February 5, 1909. One male. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. January 1 and 11, 1908; February 26, 1908; April 7 and 24, 1907. Three males, one female, one immature male. Potrerillos, Prov. of Mendoza. Elev. 1,368 meters. February 22, 1909. One female. This series shows very considerable variation in size and coloration. In size, the only specimen equalling individuals from Sapucay, Paraguay, previously measured^^ is the single female from the Mis- iones, all the other representatives being slightly or considerably smaller. In color, green is the predominating shade, but individuals with buff the base color are from Potrerillos, Mendoza, Chacras de Coria, and Corrientes, while two Jujuy females are much darker, their base tone being clay color. In all of the brownish individuals the infuscation of the dorsal section of the lateral lobes of the pronotum and the continuation of the same marking distad over the tegmina, margining the tympanum, and the anal field of the same, is more or less decided and umber in color. In the Jujuy individuals these ' areas are very strongly indicated, the tegmina also being decidedly maculate on the discoidal field with the same shade. This latter condition is suggested in certain of the buffy specimens. The species has also been recorded from Buenos Aires (Bruner) and Santa Rosa, Salta (Giglio-Tos), Argentina, . and Sapucay, Para- guay (Rehn). CALLINSARA47 „. gen. A member of the Insarce (Hormilice of authors) and related to Insara Walker {Hormilia Stal and authors), from which it can immediately be distinguished by the acuminate fastigium of the vertex, which also is not in contact with the frontal fastigium, the short bispinose genicular lobes of the caudal femora and the non- dilated abdominal segments which have their dorsal margins not produced mesad. Fastigium acuminate, sulcate, carinate ventrad, separated from « Proc. Acad. Nat. Set. Phila., 1907, p. 373. «Ka'A2og, beautiful — Insara. 362 PROCEEDINGS OF THE ACADEMY OF [May, the frontal fastigium; eyes globose, prominent. Pronotum sub- sellate, dorsum expanding caudad, lateral angles more or less indicated; lateral lobes roughly quadrate, sublongitudinal. Tegmina elongate-lanceolate, costal and sutural margins subparallel, apex rounded; median vein simple, reaching the sutural margin, discoidal vein with three rami similar to the median vein; anterior ulnar vein with numerous oblique subparallel rami similar in form to the median vein and the rami of the discoidal vein. Femora with the genicular margins non-produced meso-dorsad. Tympanum of the cephalic tibiae open on both faces. Caudal femora elongate, armed beneath on both margins, genicular lobes brief, bispinose. Type. — C. clupeipennis n. sp. CaUinsara clupeipennis ^^ n. sp. Type: cf ; Misiones, Argentina. December 30, 1910. (P. Jor- gensen; No. 13.) [Acad. Nat. Sci. Phila., type No. 5,227.] Size medium; form subcompressed. Head with the base of the fastigium horizontal, thence moderately declivent, lateral margin moderately elevated, the apex rounded when seen from the side, Fig. 25.— CaUinsara clupeipennis n. gen. and sp. Lateral view of type. (X li? sublamellate ventrad; fastigium of face very broad, rounded, well separated from that of the vertex; eyes very prominent; face with strumose ridges distributed as follows: a brief postocular one, an oblique one from the ventral portion of the eye to the ventro-caudal angle of the gena and continued thence dorsad along the caudal margin of the gena half-way to the postocular bar, oblique line from the fastigium of the face to the corner of the clypeus and finally ridges outlining the clypeus dorsad and laterad. Pronotum appre- ciably sellate, the cephalic margin not at all greatly but sharply elevated, caudal portion gradually and slightly elevated; dorsum with the greatest caudal width contained one and one-quarter times ^ Clupea, herring; pennis, wing— in allusion to the "herring-bone" color pattern 1913.] NATURAL SCIENCES OF PHILADELPHIA, 363 in the length of the same; lateral angles indicated by callous ridges similar to those on the head, sinuate on the cephalic half, considerably diverging caudad, distinct but not at all strong humeral shoulders developed caudad, a very fine medio-longitudinal sulcus present on the dorsum; cephalic margin very slightly arcuato-emargi- nate, caudal margin considerably arcuate ; lateral lobes with the greatest depth contained one and one-third times in the length of the same, ventral margin sinuato- arcuate, ventro-caudal angle subtruncate, humeral sinus rotundato-rectangulate. Tegmina about one and one-half times as long as the body, greatest width of the marginal and discoidal fields contained about six times in the tegminal length, the width gradually narrowing to the middle, thence subequal to the well-rounded apex; marginal field with its greatest width at the proximal third, where jt is but little narrower than the adjacent portion of the discoidal field, gradually narrowing thence to practically the apex; costal transverse nervures near the base of the marginal field forked, simple distad, all subcallose, oblique; median vein diverging distinctly distad of the middle of the discoidal vein, short, sinuate, oblique, reaching the sutural margin; rami of the discoidal vein three in number, similar to the median vein in form, length, and direction, two reaching the sutural margin, the third reaching the apex; anterior ulnar vein with five veins similar to the others of the discoidal field in character and direction, the anterior ulnar vein far removed from the posterior ulnar vein and close to and subparallel with the discoidal vein; tympanum with the stridulating vein very strong, slightly oblique, speculum trig- onal, the margin little produced at the apex of the stridulating vein. Exposed portion of the wings slightly longer than the pronotum, sutural margin straight, costal margin rounding to the apex which is sutural in position. Lobes of the mesosternum and metasternum broadly rounded. Disto-dorsal abdominal segment produced, trun- cate, considerably emarginate laterad at the bases of the cerci; supra-anal plate slightly elongate, trigonal, the apex well rounded; Fig. 27. — Callinsara clupeipennis n. gen. and sp. Genicular region of caudal limb of type. (X 3.) Fig. 2S.— Callinsara clupeipennis n. gen. and sp. Dorsal outline of apex of abdomen of type. ( X 3.) 364 PROCEEDINGS OF THE ACADEMY OF [May, cerci simple, tapering, slightly bent near the middle, thence incurved, apex acute, spined; subgenital plate greatly produced, narrowing distad, distal margin deeply arcuato-angulate emarginate, supplied with rather short, distinct styles. Cephalic femora with two to three spines on the ventro-cephalic margin and a single spine on the ventro- caudal one; dorso-caudal margin of the cephalic tibiae with five spines, one of which, is placed on the proximal dilation and the other at the distal extremity, dorso-cephalic margin with only the single distal spine or another additional one. Median femora with three or four spines on the ventro-cephalic margin and one or two on the ventro-caudal one. Caudal femora about three-fourths the length of the tegmina, very slender, ventral margins with seven spines on each, placed on little more than the distal half, genicular lobes bluntly acute, not surpassing the dorsum of the femoral apex,- bispinose; caudal tibise appreciably exceeding the femora in length, all of the margins armed, the dorsal more thickly so than the ventral ones. General color oil green passing into clay color on the pleura and abdomen. Head with the frontal fastigium, the base of the labrum and the above-described strumose ridges cream color; eyes cinnamon; antennae washed with saffron yellow. Pronotum faintly washed with chrome yellow, median sulcation and the lateral angles dull cream color, the latter margined ventro-cephalad and ventro-caudad with ochraceous. Tegmina with a faint ochraceous tinge at the base of the humeral trunk; principal longitudinal veins whitish, the transverse veins of the marginal field, the rami of the anterior ulnar vein, the median vein and the rami of the discoidal vein similarly colored, on the marginal field the direct rami of the costales also are similarly colored, the rami of the anterior ulnar vein having their secondary ramifications for a very short distance each side of the main rami also whitish, while the median vein and the rami of the discoidal vein have this more extensive, involving the whole of certain of the minor ramifications, the entire pattern being very decided. Exposed portion of the wings with the principal veins whitish in the same fashion as on the tegmina. Spines on the femora black. Measurements. Length of body 16.3 mm. Length of pronotum 3 . 7 Greatest dorsal width of pronotum " 3 . Length of tegmen . 27 . Greatest width of tegmen 4 , 5 Length of caudal femur 20 . The type of this most interesting genus and species is unique. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 365 Ligocatinus spinatus (Brunner). 1878. A[m.aura] spinata Brunner, Monogr. der Phaneropt., p. 248, pi. V, fig. 74a-6. [Buenos Aires.] Buenos Aires. February 26, 1909. Three females. This species has been recorded from Caiza, Bohvian Chaco, San Lorenzo, Jujuy, and Buenos Aires, Argentina. We also have before us a pair from Rosario, Argentina, collected by Bruner. * Ligocatinus olivaceus (Brunner). 1891. Amaura olivacea Brunner, Verhandl. K.-K. Zool.-bot. Gesell., XLI, p. 123. [Rio Grande do Sul, Brazil.] IMisiones. February 1, 1910; March 20, 1909. Two females. It seems probable that L. borrellii Giglio-Tos*^ is either a synonym of the present species or certain of its supposed diagnostic characters are not constant, such as the black median line on the dorsum of the abdomen, which is strongly indicated in most of the specimens (five in all) before us and almost completely absent in one. The character of insertion of the lateral lobes of the pronotum is susceptible of much latitude in individual interpretation, while the length of the ovipositor and degree of angulation of the subgenital plate are not hard-and-fast characters, as in the first case personal equation is a factor in deter- mining the base of the ovipositor and in the second case the condition of the specimen and the amount of flexure and compression of the plate may lead to different conclusions. These specimens have been compared with individuals from Sapucay, Paraguay, which is the only locality aside from the type locality and that given above from which the species is known. *Ceraia cornutoides Caudell. 1906. Ceraia cornutoides Caudell, Proc. U. S. Nat. Mus., XXX, p. 237. [Sapucay, Paraguay.] IVIisiones. March 15, 1909. One female. This individual has been compared with topotypes. ♦Vellea cruenta (Burmeister). 1838. Ph[aneroptera] cruenta Burmeister, Handb. der Entom., II, Abth. II, pt. 1, p. 691. [Rio Janeiro, Brazil.] Misiones. April 14, 1909. One female. This interesting species has been recorded from San Jose, Costa Rica (Rehn), Demerara (Walker), Para (Walker), and Rio Janeiro (Burmeister; Brunner). This is the most southern record for the species. « Boll. Mus. Zool. Anat. Comp. Torino. XII, No. 302, p. 38. 366 PROCEEDINGS OF THE ACADEMY OF [May, Scaphura nigra (Thunberg). 1824. Griyllus] niger Thunberg, Mem. I'Acad. Imp. Sci. St. Pet^rsb., IX, p. 415. [Brazil.] Misiones. December 5, 1909. (No. 2.) One male, one female. We find no important color differences between the male specimen and individuals from Sapucay, Paraguay, previously reported by us.^ The female, on the other hand, belongs to the variety B of Brunner,^> with the description of which it completely agrees. Gymnocera elegans Serville. 1839. Gymnocera elegans Serville, Hist. Nat. Ins. Orthopt., p. 427. [Buenos Aires.] Mendoza, Prov. of Mendoza. Elev. 767 meters. January 5, 1909; January 14, 1907; March 19 and 30, 1908; April 4, 9, and 24, 1908; May 6, 1908; December 13-20, 1907. Two males, eleven females. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. Janu- ary 1-31, 1907; January 9, 1908; February 4-24, 1907; March 16-30, 1907; April 4-24, 1907; December 5 (juv.), 6 (juv.), 9 (juv.), and 17, 1907. Ten males, twenty-five females, four immature specimens. Potrerillos, Prov. of Mendoza. Elev. 1,368 meters. February 23, 1908; December 27, 1907. Two females. This very interesting series gives us some desirable and definite information on the extent of variation in this variable species as found at a single locality. All of the specimens of the present species are in the color phase which has metallic blue the most striking color characteristic. The variation here noted are all aside from this base color. The color of the tegmina also remains nearly uniform in the series, varying only moderately in the depth of the ferruginous or hazel of the same, the distal blackish area present on the tegmina of all of the specimens seen. The pale maculation on the facial fastigium and that on the fastigium of the vertex are invariably present, as is the broad patch of the same on the ventral portion of the lateral lobes of the pronotum and the obHque pale line on the pleura. The dorsum of the pronotum may be without pale markings, with a single small median pair or with an increasing number of pairs up to four, these always arranged along the median line and variable in size, but always in symmetrical pairs. Frequently the pairs run together, forming bars, which tendency in a single extreme specimen is so complete that we have paired pale lines extending from the cephalic ^ Proc. Acad. Nat. Sci. Phila., 1907, p. 377. ^^ Monogr. der Phaneropt., p. 2.58. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 3^7 to the caudal margins of the disk. The antennae may or may not be broadly annulate with buffy. In every case the caudal femora have a median buffy white patch. In size there is-considerable individual variation. The species has been recorded from localities extending from Buenos Aires and Montevideo south to Patagonia and west to Santiago, Chile. StilpnocMora incisa Brunner. 1878. St[ilpnochlora] incisa Brunner, ]\Ionogr. der Phaneropt., p. 361. [Peru.] Jujuy, Prov. of Jujuy. April, 1911. One female. This interesting species is known only from Peru, San Lorenzo (Giglio-Tos), and Jujuy, Prov. of Jujuy, Argentina. *Posidippus dentiferus (Walker). 1869. Steirodon dentiferum Walker, Catal. Derm. Salt. Brit. Mus., II, p. 391. [Locality unknown.] Misiones. December 20, 1910. One female. We have followed Kirby^^ i^ using this name for the present species. Information with our specimen is to the effect that the species is very uncommon. The localities from which the form is known are Peru, Surinam, Brazil, and the Misiones, Anaulacomera argentina n. sp. Type: cf ; Misiones, Argentina. January 1, 1910. (P. Jor- gensen.) [Acad. Nat. Sci. Phila., type No. 5,225.] Closely allied to A. laticauda Brunner from Mexico and Central America, but differing in the angularly emarginate subgenital plate of the male, the longer and less arcuate cerci of the same sex, the slenderer ovipositor of the female, the less compressed pronotum of both sexes, and the broader tympanum of the male. Size medium; form moderately compressed. Head with the occiput slightly declivent to the fastigium; fastigium broad at the base, strongly constricted mesad, distad moderately bulbous, deeply sulcate on the base and the constricted median portion, the sulcus represented for some distance on the adjacent portion of the occiput by a shallower sulcus, lateral margins of the fastigium elevated mesad and proximad, strongly diverging proximad; fastigium of the front very broad, touching that of the vertex, their contiguous margins subtruncate, the cephalic portions of both subdeplanate; eyes ^ Syn. Catal. Orth., U, p. 458. 368 PROCEEDINGS OF THE ACADEMY OF [May, broad-ovoid, very prominent; antennae reaching to the tips of the wings. Pronotum with the dorsum flattened, the greatest caudal width of the same contained about one and one-half times in its length; cephalic margin of the disk sinuato-truncate, caudal margin moderately arcuate, lateral angles rounded but quite apparent, middle of disk with an impressed U-shaped figure which is connected with the caudal margin by a very faint median sulcus; lateral lobes with the greatest depth subequal to the greatest length, cephalic margin gently arcuato-emarginate, ventral and caudal margin regularly and broadly arcuate, humeral sinus rectangularly incised. Tegmina about one and one-half times the length of the body, regularly lanceolate, the greatest width contained slightly more than five times in the length, apex well rounded; pattern of the tegminal cells similar to that found in many of the other species of Fig. 29. — Anaulacomera argenlina n. sp. Fig. 30. — Anaulacomera argentina Dorsal outline of apex of abdomen n. sp. Outline of ovipositor, of type. (X3.) (X3.) the genus; median vein diverging two-fifths the distance from the base of the tegmen, furcate, reaching the sutural margin very shortly before the apex; tympanum with the greatest width contained one and one-half times in the length of the same, stridulating vein slightly arcuato-oblique, sutural margin broadly rounded at the apex of the same vein. Wings with the exposed portion surpassing the tips of the tegmina by about the length of the head and pronotum. Cephalic and median femora unarmed on the dorsal margin, tympani of the cephalic tibiae exposed. Caudal femora about two-thirds the length of the tegmina, moderately inflated proximad, ventral margins armed with one (internal) or two (external) spines distad; caudal tibiae distinctly surpassing the femora in length. Disto-dorsal abdominal segment with the distal margin arcuato-emarginate mesad, the median portion of the segment with a broad longitudinal sulcus; supra-anal plate acute-trigonal; cerci elongate, tapering, moderately curved mesad, the apex slightly hooked and faintly enlarged, covered with erect hairs ; subgenital plate with the median portion somewhat produced, sharply narrowing, the distal extremity deeply V-emargi- nate, no styles present. General color of the abdomen maize yellow, passing into dull 1913.] NATURAL SCIENCES OF PHILADELPHIA. 369 chrome yellow on the head and to pale olive yellow on the pronotum. Tegmina and exposed portion of the wings very pale bice green, the femora of the general abdominal color passing into pale apple green on the tibiae. Eyes walnut brown. Tympanum of the tegmina washed with ferruginous with a dot of seal brown at the base and another at the apex. Dorsal part of the tympanal inflation of the ■cephalic tibiae marked with ferruginous. Allotype: 9 ; Misiones, Argentina. April 24, 1909. (P. Jor- gensen.) [Acad. Nat. Sci. Phila.] The following characters are chiefly those of difference from the opposite sex: Tegmina about one and one-third times the body length; median vein diverging but slightly proximad of the middle of the tegmen. Ovipositor slightly more than twice the length of the pronotum, gently arcuate, very broad, the greatest width contained three and one-half times in the length of the same, dorsal margin almost straight, ventral margin very faintly crenulate distad; subgenital plate subtrans verse. Color as in the male, but the base of the tegmina yellowish (possibly by discoloration) and the dorsum and lateral lobes of the pronotum iinely sprinkled with points of ferruginous. Measurements. Type Allotype (male). (female). Length of body 15.5 mm. 16.2 mm. Length of pronotum 3.8 " 3.8 Length of tegmen 26.5 " 22.5 Greatest width of tegmen 5. " 4.3 Length of caudal femur 15.5 " 15. Length of ovipositor 7.8 The typical pair are all we have seen of the species. jAnaulacomera dama n. sp. Type: d^ ; Misiones, Argentina. January, 1911. (P. Jorgensen.) [Acad. Nat. Sci. Phila., type No. 5,226.] Allied to A. cornucervi Brunner from Central Peru, having similar very peculiar cerviform cerci, but differing in the smaller general size .and in the cerci having the proximal fork non-spiniform, but expanded .and moderately palmate, while the distal extremity of the cercus is decidedly palmate, trifid, and incurved. Size small ; form moderately compressed. Head with the fastigium 370 PROCEEDINGS OF THE ACADEMY OF [May^ of the vertex very similar to that of A. argentina, but with the bulbous^ extremity less inflated and the median sulcation not continued over the vertex; frontal fastigium no wider than the fastigium of the vertex, the lateral margins subparallel, the extremity closely pressed against the fastigium of the vertex; eyes similar to those of argentina; antennae surpassing the tips of the wings by nearly the length of the tegmina. Pronotum more compressed than in argentina; dorsum subequal in width, the greatest width contained one and two-thirds times in the length of the same ; lateral angles distinct, but narrowly rounded; cephalic margin moderately arcuate emarginate, caudal margin gently arcuate, middle of the disk with a V-shaped impressed figure ; lateral lobes with the greatest length slightly greater than the depth, cephalic margin arcuato-emarginate, ventral margin gently Fig. 31. — Anaulacomera dama n. sp. Fig. 32. — Anaulacomera dama n. sp. Lateral outline of apex of abdomen Dorsal outline of apex of abdomen of type. (X3.) of type. (X3.) arcuate, passing by a little indicated and rounded angle into the oblique arcuate caudal margin, humeral sinus acutely incised. Teg- mina nearly half again as long as the body, general form and vein disposition similar to the type found in argentina, tympanum shorter and broader than argentina, the greatest width contained less than one and one-half times in the length, margin considerably though roundly projecting at the extremity of the stridulating vein. Wings with the exposed portion surpassing the tegmina by about the length, of the pronotum. Disto-dorsal abdominal segment with the distal margin truncato-emarginate, strongly emarginate laterad dorsad of the cerci; cerci cerviform, slightly longer than the dorsum of prono- tum, when seen from the dorsum strongly arcuate laterad, incurving, at the tips which are subcontiguous, when seen from the side there is seen to be a proximal fork diverging ventro-mesad, with its extremity compressed, lamellate, and bidentate, distad of the middle the cercus becomes palmate with one long distal ''tine" or fork, and dorsad and ventrad of the same are short acute ones of the same character; subgenital plate short, narrowing distad, the distal margin truncate, flanked laterad by short styliform processes. Caudal limbs lacking. General color gamboge yellow on the abdomen, passing into dull 1913.] NATURAL SCIENCES OF PHILADELPHIA. 371 sulphur yellow on the pleura, pronotum, and head. Tegmina maize yellow proximad, passing into pale apple green on the distal two- thirds; tympanum with the principal veins lined with burnt sienna; exposed portion of the wings pale apple green. Eyes chocolate. Measurements. Length of body 13 . 8 mm. Length of pronotum 3.2 '' Length of tegmen 17 . 3 " Greatest width of tegmen 3.4 " The type of this remarkable species is unique. *Grammadera albida Brunner. 1878. G[rammaderd\ albida Brunner, Monogr. der Phaneropt., p. 298. [Brazil.] Misiones. December 22, 1910. (No. 8.) One female. This species has been recorded from Sapucay, Paraguay (Rehn), in addition to the localities given above. Phylloptera ovalifolia BurmeLster. 1838. Ph[ylloptera] ovalifolia Burmeister, Handb. der Entom., II, Abth. II, pt. 1, p. 311. [South America.) Misiones. March 18 and 22, 1909. Two males. This widely distributed species has previously been recorded in Argentina only from Buenos Aires (Serville), while from southern Brazil it has been reported from Theresopolis (Saussure and Pictet), Rio Janeiro (Walker; Brunner), and Santa Catharina (Saussure and Pictet). *PhylIoptera spinulosa Brunner. 1878. Phiylloptera] spinulosa Brunner, Monogr. der Phaneropt., p. 314. [Ypanema, Sao Paulo, Brazil.] Misiones. March 15, 1909. One female. This specimen has been compared with a pair from Sapucay, Paraguay. The three localities here mentioned are all knoTNoi for the species. SubfamUy PSEUDOPHYLLIN^. Dasyscelis normalis Brunner. 1895. Dasyscelis normalis Brunner, Monogr. der Pseudophyll., p. 119. [Uruguay; Buenos Aires.] Buenos Aires. February 26, 1909. One male. 372 PROCEEDINGS OF THE ACADEMY OF [Majr,, *Dasyscelis dilatatus Brunner. 1895. Dasyscelis dilatatus Brunner, Monogr. der PseudophylL, p. 120. [Theresopolis, Brazil.] Misiones. November, 1910. One female. This specimen is slightly larger than the original measurements and is very strikingly marked on the pronotum, abdomen, and limbs with seal brown, but otherwise it fully agrees with the description. The species is known only from the types and the present specimen. Nannotettix bilineatus n. sp. Type: 9 ; Misiones, Argentina. December 10, 1910. (P. Jor- gensen.) [Acad. Nat. Sci. Phila., type No. 5,228.] Allied to N. guentheri and pallidevittatus Brunner from Sorata, Bolivia, but differing from the former in the paler face, the absence of black from the pronotum, in the broadly ovate instead of lanceolate tegmina, in the fewer femoral spines, the different subgenital plate and shorter caudal femora and ovipositor; from the latter in the non- tuberculate cephalic margin of the pronotum, the fewer femoral spines, the different coloration of the femora and abdomen and the longer tegmina. The striking yellowish postocular lines are sirhilar Fig. 33. — Nannotettix bilineatus n. sp. Lateral outline of type. (X H-) to those found in pallidevittatus, but the more uniformly colored limbs and abdomen will immediately separate the present species. Size medium; form rather elongate. Head with the vertex slightly declivent; fastigium acute, reaching to the margins of the antennal scrobes, margins distinctly elevated dorsad of the ocelli, the apex of the fastigium of the front not in contact with that of the vertex; face gently and roundly retreating; eyes subglobose, slightly directed cephalad, indistinctly flattened laterad; proximal antennal joint elongate, armed disto-laterad with a distinct spine. Pronotum with the length of the disk nearly twice the caudal width of the same ; cephalic margin of the disk arcuato-truncate, caudal margin moder- 1913.] NATURAL SCIENCES OF PHILADELPHIA. 373 ately arcuate; transverse sulci two in number, the cephalic placed about the cephalic third, the caudal placed immediately caudad of the middle, margins of the pronotum non-tuberculate; lateral carinae indicated by lines of low tubercles, which gradually converge to the caudal transverse sulcus, then more abruptly diverge to the caudal margin; lateral lobes with the greatest depth contained one and two-thirds times in the length of the lobes, ventral margin slightly sinuato-emarginate caudad, ventro-caudal angle slightly obtuse; surface of the dorsum and the lateral lobes of the pronotum shagreened. Tegmina subequal to the pronotum in length, broad ovate in form, the width two-thirds of the length, the extreme portion of the broadly rounded apex faintly truncate. Supra-anal plate trigonal with a distinct medio-longitudinal impression; cerci brief, acuminate; subgenital plate with the distal margin rectangulate emarginate mesad; ovipositor subequal to the length of the prono- tum and tegmina together, moderately arcuate, tapering, ventral margin serrulato-denticulate on the distal fourth. Cephalic femora very slightly longer than the length of the head and pronotum together, unarmed on the ventro-caudal margin, with three spines distad on the ventro-cephalic margin; cephalic tibiae unarmed dorsad, on the ventral margins with five (caudal) to six (cephalic) spines. Median femora very slightly longer than the cephalic femora, armed on the ventro-cephalic margin with two to three spines, unarmed on the ventro-caudal margin; median tibiae unarmed dorsad, ventro- caudal margin with four to five spines, ventro-cephalic margins with five to seven spines. Caudal femora about three times as long as the tegmina, moderately robust, considerably inflated proximad, ventro- cephalic margin with four decided distal spines, ventro-caudal margin unarmed; caudal tibiae slightly exceeding the femora in length, well spined. General color raw umber, becoming burnt umber on the dorsum of the head and pronotum, the tegmina walnut brown. Head with the face and portions of the genae straw yellow; a narrow postocular line naples yellow; eyes tawny ochraceous; antennae distad of the second joint tawny. Pronotum with the postocular line of the head con- tinued caudad over the tuberculations of the pronotum as narrow lines of naples yellow. Ovipositor with the margins and apex washed with burnt sienna. Cephalic and median femora ferruginous, becoming darker distad; cephalic and median til)i8e vinaceous-cinna- mon, rather darker proximad. Caudal femora ferruginous, slightly darkened distad, spines yellowish with the tips burnt sienna; caudal 374 PROCEEDINGS OF THE ACADEMY OF [May, tibiae cinnamon-rufous with the tip slightly washed with burnt sienna. • Measureme7its. Length of body 23 . mm. Length of pronotuni 5. " Length of tegmen 5 . " Length of caudal femur 15.8 " Length of ovipositor 9.8 " The type of this species is unique. Information with the specimen is to the effect that the species is "common." Subfamily CONOCEPHALIN^. -*Paroxyprora tenuicaudaKarny. 1907. Paroxyprora tenuicauda Karny, Abhandl. K. K. Zool.-bot. Gesell. Wien, IV, p. 13. [Rio Grande do Sul, Brazil.] Misiones. December 29, 1909. One male. The present male fully agrees with the individual of that sex from Puerto Bertoni, Paraguay, previously reported by us.^^ The three localities here mentioned are all known for the species. €aulopsis gracilis Redtenbacher.? 1891. Caulopsis gracilis Redtenbacher, Verhandl. K. K. Zool.-bot. Gesell. Wien, XLI, p. .377, pi. Ill, fig. 2.5. [Brazil; Buenos Aires; Montevideo; Rosario; Cuba.] Misiones. December 12, 1909. One female. This specimen is referred to the present species with some doubt, as it is considerably smaller than the measurements of the same sex given by Redtenbacher. The dimensions of our individual are as follows: length of body, 38.5 mm.; length of f astigium, 6 ; length of pronotum, 8.9; length of tegmen, 43.5; length of median femur, 7.7; length of caudal femur, 19.5; length of ovipositor, 20.5. Aside from the differences in measurements and the hardly carinate instead of "obtusely" carinate venter of the fastigium, our specimen agrees with the original description. * Neoconocephalus muticus iRedtenbacher). 1891. Conocephalus muticus Redtenbacher, ibid., XLI, p. 393. [Cuba; St. Vincent, Lesser Antilles.) IMisiones. March 5, 1910. (No. 3.) One female. This specimen very satisfactorily answers the description of the species, previously known only from localities in the West Indies, Central America and northern South America. « Entom. News, XXII, p. 254. 1913.] NATURAL SCIENCES OF PHILADELrHIA. 375 *Neooonocephalus redtenbacheri Kamy. 1907. Neoconncephalus redtenbacheri Karny, Abhandl. K. K. Zool.-bot. GeseU. Wien, IV, p. 32. [Rio Grande do Sul, BrazU.] Tucuman, Prov. of Tucuman. March 16, 1911. One male, two females. These specimens agree fully with the original description of the species. The male and one female are in a green phase, while the other female is in a brown phase very closely resembling N. obscurel- lus, from which it can be separated by the narrower fastigium. The type locality and Tucuman are the only points from which the species has been recorded. * Neooonocephalus saturatus (Griffini). 1891. Conocephalus saturatus Griffini, Miscell. Entom., VII, p. 5. [Based on Conocephalus infuscatus Redtenbacher (not of Scudder); Medellin; St. Vincent, Lesser Antilles; Cuba; Venezuela; Surinam; Cayenne; Brazil; Rio Grande and Theresopolis, Brazil.] Buenos Aires. January 14, 1909. One male. Misiones. March 16, 1911. One male. Neoconocephalus macropterus (Redtenbacher). 1891. Conocephalus macropterus Redtenbacher, Verhandl. K. K. Zool.-bot. GeseU. Wien, XLI, p. 402. [Mexico; Martinique; St. Vincent, Lesser Antilles; Cuba; San Francisco and Pernambuco, Brazil; Peru; Buenos Aires.] Posadas, Misiones. Elev. 80 meters. March 6, 1909. One female. This specimen has been compared with individuals from Rosario, Argentina, Mexico, and the West Indies. *Agraecia maculata Redtenbacher. 1891. Agraecia maculata Redtenbacher, ibid., XLI, p. 455, pi. IV, fig. 63. [Theresopolis, Brazil.] Misiones. November 12, 1909. One male. This specimen has been compared with individuals from Sapucay, Paraguay. Conocephalus longipes (Redtenbacher). 1891. Xiphidium longipes Redtenbacher, ibid., XLI, p. 505, pi. IV, fig. 81. [Buenos Aires; Montevideo; Rio Grande do Sul and Santa Catharina, Brazil; Peru (?).] Misiones. March 30 and April 19, 1909. One male, one female. Buenos Aires. February 26, 1909; May 3, 1907. One male, one female. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. Janu- ary 11, February 16, and April 7, 1907. Four males. 25 376 PROCEEDINGS OF THE ACADEMY OF [May, Mendoza, Prov. of Mendoza. Elev, 767 meters. April 4 and 9, 1908. Two males. San Ignacio, Prov. of Mendoza. Elev. 1,235 meters. March 15 and 22, April 5, 1908. Five males, six females. These specimens have been compared with material from Car- carana, Argentina, and Rio Grande do Sul, Brazil, determined by Bruner and Saussiire, respectively. * Phlugis Spinipes (Fabricius). 1775. [Locusta] spinipes Fabricius, Syst. Entom., p. 283. [Brazil.] Misiones. September 1, 1910. (No. 6.) One female. We have followed Kirby^ in using this name for the species in place of tener Stal. The only previous definite record for the species at all near that cited by us is Sao Paulo, Brazil. Family GRYLLID^. Subfamily GRYLLOTALPIN.E. * Scapteriscus borellii Giglio-Tos. 1894. S[capteriscus] borellii Giglio-Tos, Boll. Mus. Zool. Anat. Comp. Torino, IX, No. 184, p. 45, pi. figs. 12 and 15. [Colonia Risso, Rio Apa, Paraguay.] Misiones. December, 1910. One male. Chacras de Coria, Prov. of Mendoza. Elev. 936 m&ters. Decem- ber 9, 1907. One male. These specimens accord fully with the original description and figures. The species is here first recorded from Argentina. Subfamily GRYLLIN^. Nemobius longipennis Saussure. 1874. Nemobius longipennis Saussure, Miss. Scient. Mex., Rech. Zool., VI, p. 383. [Buenos Aires.] San Juan, Prov. of San Juan. Elev. 673 meters. January 20, 1909. One male, six females. Pedregal, Prov. of Mendoza. Elev. 696 meters. December 14, 1906. Two females. These specimens fully agree with the original description of the species. Previous records are from Paraguay and Asuncion, Sapu- cay^^ and Villa Rica, Paraguay; Santa Rosa, Salta, and San Pablo, Tucuman, Argentina. ^Synon. Catal. Orth., II, p. 285. ^ The material recorded by Caudell from Sapucay as N. fasciatus (Proc. U. S. Nat. Mus., XXX, p. 243) belongs to this species, the two males there recorded having been examined by us. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 377 *Nemobius rufus Saussure. 1877. Nemohius rufus Saussure, Mel. Orthopt., V, p. 256. [Brazil.] Misiones. December, 1910. One male, one female. The present specimens answer the original description very well, except that the last article of the palpi bears no black and the wings are fully developed and caudate. The latter fact shows the species to be dimorphic in wing length. The general appearance of the species is very similar to that of N. longipennis, but rufus can be separated from the latter by having the ovipositor longer, the dorsal margin of the apex of the same serrulate instead of serrate and the disto-dorsal spurs of the caudal tibiae unequal in length instead of equal. The species is only known from the type locality and the INIisiones. Gryllus argentinus Saussure. 1874. Gryllus argentinus Saussure, Miss. Scient. Mex., Rech. Zool., VI, p. 399. [Southern Brazil; Argentine Republic and the north of Patagonia; Buenos Aires; Bahia Blanca; Rio Negro of Patagonia.] Misiones. December 30, 1910. (Nos. 2 and 3.) Two females. Mendoza, Prov. of Mendoza. Elev. 767 meters. December 20, 1907. One male. Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. Janu- ary 16, 1908. Two females. One Misiones female has the wings caudate, the others having them not exceeding the tegmina. A typical female from Buenos Aires, received from Saussure, has the wings no longer than the tegmina. SubfamUy (ECANTHIX.E. (Ecanthus sp. Misiones. March 29 and December, 1910. Two males, one female. These specimens are too imperfect to be determined with certainty. Neoxabea brevipes n. sp. Type: 9 ; Misiones, Argentina. November 6, 1910. (P. Jor- gensen.) [Acad. Nat. Sci. Phila., type No. 5,229.] Closely related to N. hipunctata (De Geer), from which it differs in ihe less projecting ventral margins of the lateral lobes of the prono- tum, the shorter limbs, the shorter caudal tarsi and more uniform coloration. One of the more apparent differences is that the inflated proximal portion of the cephalic tibiae is less than half the entire length of the same in hipunctata and a full half that length in brevipes, the whole tibiae also being more robust in the new form. Size medium ; form as usual in the genus. Head with the occiput 378 PROCEEDINGS OF THE ACADEMY OF [May, slightly concave; eyes ovoid, rather small, not at all prominent when seen from the dorsum; antennae with the node on the proximal joint well developed, the tips of the antennae surpassing the tips of the tegmina. Pronotum of the general type found in the genus, narrow cephalad, regularly and considerably expanding caudad, the greatest width contained one and one-quarter times in the length of the same, F' 34 — A^ - cephalic margin of the disk truncate, caudal margin o X ah e a arcuato-sinuate laterad, disk with a pronounced trans- hrevipes^n.^ verse sulcus near the caudal margin, immediately outline o f cephalad of which is an incomplete circular sulcus, the pronotum imperfect portion of which is cephalad; ventral margins (X 4.) of the lateral lobes but little projecting, when seen from the lateral aspect this margin is slightly emargi- nato-sinuate dorsad of the insertion of the limbs, slightly arcuato- lobate immediately caudad of the same. Tegmina slightly more than twice the length of the head and pronotum together, of the general character found in females of this genus ; dorsal field with the general pattern of the venation regularly oblique, the areas more regular, more numerous and smaller than in N. bipunctata; lateral field broad, deeper than the breadth of the dorsal field, reticulations more numerous and smaller than in N. bipunctata. Wings projecting caudad of the tegmina a distance equal to nearly two-thirds the tegminal length. Ovipositor shorter than the combined length of Fig. 35. — Neoxabea brevipes n. sp. Out- Fig. 36. — Neoxabea brevipes n. sp. Cau- line of cephalic limb of type. (X 3.) dal tarsus of type. (X 6.) the head and pronotum. Cephalic and median limbs very short, the cephalic femora hardly as long as the head; cephalic tibiae very slightly longer than the femora, the inflated area surrounding the tympanum slightly longer than the narrow subequal distal extremity. Median limbs equally short as the cephalic ones. Caudal femora about two-thirds the length of the tegmina, when extended caudad reaching only to the base of the ovipositor, slender; caudal tibiae slightly longer than the femora; caudal tarsi very short when com- pared with those of bipunctata, the metatarsi comparatively shorter, no long than, instead of distinctly longer than, the remaining joints of the tarsi. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 379 General color of the head, pronotum, dorsum of tegmina, and exposed portion of the wings prout's brown, lateral aspect of the tegmina and the limbs wood brown. Eyes dull ferruginous; antennae dull naples yellow. Several irregular linear touches of seal brown are placed on the dorsal side of the humeral trunk on the distal half of the tegmina, these markings being co-extensive with certain linear cell areas of the same region. Ovipositor obscure burnt sienna with the tips blackish. Femora distinctly sprinkled with points of burnt umber, the tibiae with a few of the same character; the spots on the femora disposed in linear and, as a rule, balanced series. Measurements. Length of body 17. mm. Length of pronotum 3.3 Length of tegmen 12 .3 Length of exposed portion of the wing 7.2 " Length of caudal femur 7.3 " The type of this very interesting species is unique. SubfamUy TRIGONIDIIN.^. Thamnoscirtus amoenus (Burmeister). 1880. PhylloscirUts amoenus Burmeister, Abhandl. Naturfor. GeseU. Halle, XV, p. 18, pi. 1, figs. 8-10. [Mouth of the Riachuelo, Buenos Aires, Argentina.] Buenos Aires. February 20, 1909. Three males, one female. This striking species is a true Thamnoscirtus, and not a Phylloscir- tus, the head being vertical and not at all horizontal. Saussure has described a very closely related species from Guiana as Thamnoscirtus viridicatus.^^ Giglio-Tos has recorded this species from the Province of San Pedro, Paraguay, as ? Thamnoscirtus cicindeloides Gerstaecker,^^ later correcting the determination to Phylloscirtus amcenus.^^ SubfamUy ENEOPTERIN^. Diatrypa tuberculata Saussure. 1874. Diatrypa tuberculata Saussure, Miss. Scient. Me.x., Rech. Zool., VI, p. 479. [Buenos Aires.] IMisiones. April 30, 1910. (No. 1.) One male. This species has been recorded only from Buenos Aires, the Misiones and Sapucay, Paraguay (Caudell). Our specimen is striped on the pronotum in a similar fashion to the female examined by Caudell. ^^ ^Biol. Cent.-Amer., Orth., I, p. 240. " Boll. Mus. Zool. Anat. Comp. Torino, IX, No. 184, p. 40. ^Zool. Jahrb., Abth. Syst., VIII, p. 816. 59 Proc. U. S. Nat. Mus., XXX, p. 243. 380 PROCEEDINGS OF THE ACADEMY OF [May, NOTES UPON SOME LOWEK CALIFORNIAN HELICES. BY HENRY A. PILSBRY. The receipt of some Helices collected on Cerros (Cedros) Island, Lower California, by Mr. H. N. Lowe, has been made the occasion for giving plates illustrating the Micrariontas of Lower California and offering some notes upon the characters, variation, distribution, and type localities of the several forms. Information upon the habitats and stations of several species may be found in an article by Mr. Lowe in the Nautilus for July, 1913. The only recent work of an exact nature upon these snails is in. a paper published by Doctor W. H. Dall in Proc. Acad. Nat. Sci. Phila. for 1900, in which several new forms are defined. The fauna stands much in need of investigation by some one who can study the snails on the ground; who will look into the limits and characteristics of the snail colonies, locate them exactly, and keep the snails of different colonies separate. At present we have little knowledge of the association of forms or the range of variation within a colony. The first Helices from the Lower Californian coast seem to have been collected by Dr. Hinds, who accompanied Capt. Belcher as surgeon of H. M. S. Sulphur. The Sulphur was engaged in work of survey and exploration along the West Coast in 1839, and oppor- tunity for land collecting was had at San Diego and various points northward, San Quintin, Cerros Island, Turtle (San Bartolome) Bay, and Magdalena Bay. Two species collected by Hinds were described by Pfeiffer in 1845, Helix levis and H. areolata, both re- ported, in the original descriptions, as from "California," whether Lower or Upper not specified ; moreover, at the time of the Sulphur voyage the differentiation of the Californias seemed a small matter to Europeans, both being equally savage and remote. During 1846 the Herald and Pandora surveyed parts of the coast — Victoria, Esquimalt Harbor, Port Discovery, Port Townsend, San Francisco Bay, San Nicolas, S. Clemente, San Diego Bay, Los Coronados, San Quintin, Cerros Island, Magdalena Bay.^ A number ^Narrative of the Voyage of H. M. S. Herald during the years 1845-51, by Berthold Seemann, 1853. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 381 of West Coast shells were collected, but unfortunatelj^ the localities were badly mixed up, as in the Sulphur shells. Good accounts of the explorations of Veatch, Gabb, Scammon, and others of that period together with much historical and other infor- mation concerning the peninsula may be found in a book issued by the Lower California Company, entitled, "Lower California: Its Geography and Characteristics," New York, 1868. The most exten- sive recent reports by scientific observers are those published by the California Academy of Sciences. These deal chiefly with the Cape region, which differs widely from the peninsula further north by reason of its far greater rainfall. Helicoid and Bulimoid landsnails living in exposed places usually become more variegated than the related forms from sheltered or shaded places. When exposed to the sun, the ground color or the whole shell becomes opaque white, an adaptation to exclude light, which would shine through a brown, corneous, or yellowish shell, probably to the detriment of the snail. Compare Cerion, Hemi- trochus, Bulimulus schiedeanus, Leucochroa, etc. Among snails living in drj^, sunny places, there is also very often a tendency to multiply color-bands, in snails derived from stocks with one or few bands, as in Euparypha, Hemitrochus, Plecto stylus, etc. This may possibly be protective, as a variegated shell is less conspicuous on a bush or weed than a one-colored shell. The enhanced color development and variabilitj^ of snails living on trees or other plants lead to the formation of color varieties from diverse variations in different colonies. Where the topographic and other environmental conditions favor isolation of colonies, permanent races or species result, as among the Partulce and Achati- nellce. When the colonies occasionally mingle by changing condi- tions of vegetation, etc., we have polymorphic hybrid races — colonies where great individual diversity of pattern or form are seen. Lower California, exclusive of the Cape region, is probably an area of increasing aridity, like southern Arizona and Sonora, so that there is now a strong tendency towards restriction and consequent isolation of the snail colonies. The rather wide distribution of some of the species and the polymorphic coloration of many colonies leads us to believe that conditions formerly were much more favorable to migra- tion and mingling of land snails. Subsidence has also played a part in isolating the snails of the small islands along the coast. That the changes have often been unfavorable is shown by the dwarfed size of many races, as on San Geronimo, Natividad, and Asuncion Islands. 382 PROCEEDINGS OF THE ACADEMY OF [May, The irregular apertural thickening, lumps, and uneven "teeth" of some forms of M. levis and others show the unfavorable action of extreme aridity.^ The apparent absence of Helicidse on the comparatively well- watered southern end of the peninsula is an anomaly. I cannot help thinking that further search will bring some Helices to light. It is a region of fine Bulimuli. In the northeastern part of the peninsula and on the Coronado Islands, Micrarionta stearnsiana Gabb is found.^ Farther down and inland the closely related M. orcutti Dall occurs. This seems to be constant in its divergence from stearnsiana in the large lot I have seen. Far off shore on Guadalupe Island is the small M. guadalu- piana Dall, a perfectly distinct species of the typical group of Micra- rionta. On the sierra running down the peninsula near the eastern border there are several Sonorella-Wke species, such as Helix lohrii Gabb, unknown anatomically, but probably belonging to the desert group of Micrarionta characteristic of southwestern Arizona and south- eastern California. Micrarionta consists of three rather sharply differentiated groups or sections: (1) Micrarionta typical, small, compact shells with the lip strongly reflexed, insular in distribution, M. rujicincta, gabhi, facta, guadalupiana. (2) Section Eremarionta for M. desertorum P. & F., includes also M. hutsoni Clapp and probably all the Cali- fornian and Lower Californian species which have been referred to Sonorella. The lip is expanded, shell smooth. (3) Section Xerarionta for the capacious forms with the lip not expanded or but slightly so, the axis perforate or closed, the shell generally variegated, many- banded. M. veatchii may be taken as the type of this group, which extends from the Channel Islands of California to Magdalena Bay, on the islands and adjacent shore. Micrarionta pandoras (Forbes). PI. XV, figs. 17 to 23. Helix pandorce Forbes, P. Z. S., 1850, p. 55, pi. 9, f. 3 a, b. Binney, Land and Fresh-water Shells of N. A. I, p. 179. Epiphragmophora pandorce (Forbes), Dall, Proc. A. N. S. Phila., 1900, p. 101. Helix damascenus Gould, Proc. Boston Soc. N. H., VI, p. 11, 1856; Otia Conch, p. 219. Epiphragmophora pandorce bonitosensis Pils., Proc. A. N. S. Phila., 1898, p. 70, pi. 1. figs. 4, 5 (genitalia). This species was collected by H. M. S. Herald or Pandora, the 2 Cf. DaU, "On Insular Land Snail Faunas. " 3 This has been shown by Mr. G. H. Clapp to differ specifically from M. kelletti of the Channel Islands. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 383^ locality uncertain. On p. 53 of Forbes' article, he states that "Helix kellettii and pandorce, both new, are probably from the same country [i.e., neighborhood of the Columbia River], though the box in which they were contained was marked Santa Barbara. " On p. 55 he saj'^s, "collected near the Straits of Juan del Fuaco [Fuca]."'^ The Santa Barbara Island Helix of this type is tnjoni Newc. H. pandorce must have come from some southern locality. Since speci- mens exactly resembling Forbes' figure were taken by Anthony and others on San Benito Island, off the north end of Cerros Island, that place may for the present be taken as the type locality, as no other place has yet afforded shells agreeing so well with Forbes' figures. San Benito, or "Los Benitos," is west of the north end of Cerros Island and consists of two or three small and very barren islets. The name has also been spelled "San Bonito" (Captain C. M. Scammon) . Though we are considering Los Benitos the type locality of H. pandorce, it must be said that we have no definite information of where the original lot was taken. The Herald touched Cerros Island, and left the Pandora behind to complete the survey. No further report of the movements of the Pandora is given in the narrative, but it is not unlikely that S. Benito was visited in the course of the survey. The fact that Forbes named the species for the Pandora may be taken, in the absence of any information to the contrary, as some indication that it was obtained by members of the Pandora's surveying party. The locality "Santa Barbara, on Margarita Bay, Lower California, Forbes," quoted by Dall, I am unable to confirm, as I can find no place or bay so named on the coast of Lower California, on maps acces.sible to me. Dall has noted that this small species "varies from white to dark gray above, and below may be white or banded with ashy-gray. The nucleus is, however, invariably of a livid purplish color, and the surface is dull and conspicuously striate." It is sometimes pure white (pi. XV, fig. 23), or has a few diffuse reddish-purple bands on the last whorl (pi. XV, figs. 21, 22), the apex whitish or dark (fig. 22 photographed abnormally dark). The typical form (pi. XV, figs. 17, 18, 19, 20) is dull purplish above and banded below the periphery on a creamy ground, the apex purple * The Spanish Captain de Fuca has recently been canonized by a Cahforniaa conchologist, Bull. S. Cal. Acad. Sci., X, p. 54, 1911. 384 PROCEEDINGS OF THE ACADEMY OF [May, or reddish. The lip is very slightly expanded, narrowly white- bordered within, and the columellar margin concave with no trace of a tooth. The embryonic whorl, when unworn, has radial wrinkles as in veatchii; the spire is not granular, and the last whorl shows spiral incised lines. Alt. 15, diam. 18 mm., 4f whorls. It was this form which I dissected, under the name of "E. p. honitosensis." M. pandorw is anatomically similar to veatchii on a smaller scale. It belongs, I think, nearer veatchii than to any other species. As in other races of these small arid islands, pandorce is conspicuously reduced in size, probably through the continuous influence of short active and long dormant periods. The specimens figured are from S. Benito Island, collected by Anthony and Hemphill. Micrarionta veatchii ('Newc' Tryon). Plate XV, figs. 1 to 7 (varieties figs. 8 to 16). Arionta veitcMi [error for veatchii] Newcomb, Tryon, American Journal of Conchology, II, p. 316, pi. 22 (5), fig. 19, 1866. Ill, p. 162, 1867. Helix veatchii Stearns, Proc. Cal. Acad. Sci., Ill, p. 328, 1867. Helix areolata W. G. Binney, Land and Fresh-water Shells of N. A., I, p. 177, fig. 311, two figures in the middle. A fine species, known by its large size, turbinate, elevated shape (which, however, is variable), and the coloration, somewhat like Helix aspersa, but also very variable; the embryonic shell when unworn is finely irregularly wrinkled radially. There is never any trace of a columellar tooth. It was described from Cerros Island, where Veatch collected it in 1859, and the typical form at least is confined to that place. In specimens collected at the north end of Cerros Island by Mr. H. N. Lowe in 1912 (pi. XV, figs. 2, 3), the foot and sole are pale gray, back brownish-gray, paler towards the shell, near the edge yellowish -gray, under a lens seen to be closely peppered with yellow dots on a dark gray ground. A specimen of the same lot having the shell light colored (pi. XV, fig. 1) has the animal gray-brown through- out, a little darker on the back. The tail is depressed, back with the usual pair of grooves. In walking, the muscular waves extend entirely across the sole, and are about 5 mm. apart, more separated towards the tail. Foot about 60 mm. long. The shell in this lot (pi. XV, figs. 1, 2, 3) varies notably in degree of elevation and in color. The ground is pink-white; some shells are boldly marked with blackish-chocolate bands, as many as eleven in fig. 3. Others have the shoulder band well developed, several others weakly traced, fig. 2. In others, all the bands present are very weak, fig. 1 ; or again, the shoulder band alone is indicated by an interrupted dark fillet. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 385 •Granulation is weakly developed on the second and third whorls, and incised spiral lines are well developed on the last whorl. The type lot of veatchii consists of smaller shells, pi. XV, figs. 6, 7, in which the bands number 9 or 10, are brown or blackish and more or less speckled. Fine, distinct granulation (as in levis) may be seen •on the second and third whorls. The incised spirals of the last whorl are weak and much interrupted. The lip is slightly expanded, the •callus within making it appear more expanded than it really is. This feature is rather poorly shown in the figures because of the •darkness of the interiors in the photographs. In M. levis there is little or no expansion of the lip. The largest individual seen measures, alt. 26|, diam. 28| mm. It was collected by Hemphill (pi. XV, fig. 5). The highest in a series sent by Mr. H. N. Lowe measures, alt. 2Q^, diam. 25| mm.j with 6^ whorls (fig. 2) ; and the lowest, in the same lot, is, alt. 24^, diam. 28 mm., 5f whorls (fig. 1). The types were smaller, about 23 X 23 mm. Two of the type lot are figured, pi. XV, figs. 6, 7. In these the spiral incised lines are less developed than in the larger forms. The lip is less broadly expanded in many specimens, as in fig. 4, collected by Gabb. Besides the typical elevated form already noticed, there are several more or less divergent forms found on Cerros Island. I have referred to these by number, as their status cannot be discussed intelligently until careful field work locates the colonies and gives material for a study of the variations in each. (1) M. veatchii leucanthea Dall, from the eastern side of Cerros Island (pi. XV, fig. 10, a cotype, U. S. Nat. Mus. No. 107,627) is exactly like the lower forms of veatchii in shape of the shell and the rather broadly expanded lip. It differs by the absence of distinct bands on the pink-white surface and the more distinct granulation of the entire upper surface. The shell figured measures, alt. 23, diam. 26 mm., with 5| whorls. (2) Shells collected on Cerros Island by Hemphill, what part of the island not stated, resemble leucanthea in shape and sculpture, but differ in having the lip expansion very narrow. In one lot (pi. XV, figs. 15, 16) the fleshy-brown bands vary from weak and "curdled" (like the traces of a band in leucanthea) to moderately strong. (3) In another lot (pi. XV, figs. 13, 14) the last whorl has a pale brown tint; there are no bands whatever, but the surface is strewn with purplish-gray dots, translucent by transmitted light. The lip expands very narrowly. 386 PROCEEDINGS OF THE ACADEMY OF 'May, (4) Natividad Island, off the south end of Cerros. A shell col- lected by Anthony and sent me alive by Dr. Dall (pi. XV, fig. 12) is banded and streaked profusely with purplish-brown. The embryo is distinctly wrinkled and the inner whorls following are somewhat granulated; lip narrow. Alt. 21, diam. 23.8 mm., with 5| whorls. The genitalia of this individual were figured by me as "areolata" in Proc. A. N. S. Phila., 1898, pi. 1, figs. 6, 7. It certainly has nothing to do with the real areolata, but belongs to the veatchii group of forms. (5) Turtle Bay, collected by Hemphill (pi. XV, fig. 9), white or pink-white, immaculate or with a few fleshy dots. Embryonic whorl wrinkled, the rest of the upper surface granulated more or less, lip very narrow. Resembles varieties (2) and (3), except in color. (6) Turtle Bay, Hemphill (pi. XV, fig. 8). The white or pale embryonic whorl is nearly smooth (in 8 adult shells examined, no young ones seen); granulation appears weakly on the inner whorls, not on the last one or two. Lip expansion is narrow. The shell is compactly coiled. Bands speckled with white, either numerous, as in fig. 8, or reduced in number and intensity (as in fig. 15). Alt. 20, diam. 23 mm., with 5| whorls. This lot was sent out by Hemphill as "H. areolata var." (7) Turtle Bay (pi. XV, fig. 11). Same as No. 6, but white with the coloring of leucanthea, plus some scattered fleshy dots. Whether all of the Turtle Bay lots were from one colony or from several is not known. Mr. Hemphill sorted out his Helices into color forms, thereby destroying all evidence as to the composition of the colonies. M. veatchii was named in honor of John A. Veatch, who surveyed Cerros Island in search of copper and other minerals in June, July, and August, 1859. By an error or oversight the name was spelled "veitchii" in the original account. Micrarionta veatchii canescens (Adams and Reeve). Text fig. 1. A series collected by Mr. H. N. Lowe at South Bay, Cerros Island, agrees well with the figures and description of Helix canescens,^ 5 The original description follows: "Helix canescens. Shell globose, nearly covered perforate, opaque white, ornamented with oblique streaks and several interrupted blackish concentric lines and a conspicuous central band, whorls 5, the last rotund-inflated. Aperture lunate-rotund, peristome thickened within, callous in the columellar margin. Hab. Africa. A white globose shell with simple lip banded and minutely sprinkled with black. " (Adams and Reeve, in Zoology of the Voyaqe of H. M. S. Samarana, p. 62, pi. 16, fig. 10, 1848.) 1913.] NATURAL SCIENCES OF PHILADELPHIA. 387 which was described with the indefinite locality '' Africa" and has not been recognized by subsequent authors, although Tryon has called attention to its resemblance to veatchii, etc. Part of the specimens (fig. 1, a, h, c) have a columellar tooth; some, as fig. 1,6, have the coloration of Adams and Reeve's type figure in the Zoology of the Samarang, pi. XVI, fig. 10. Others, fig. 1, a, have the pattern shown by Reeve in the Conchologia Iconica. Still other examples «how but faint traces of dark markings, fig. 1, c. With these there were a few shells generally similai', but without the columellar tooth, fig. 1, d, which by themselves would be referred to M. veatchii var. No. 7, or with the tooth very weak, intergrading with the distinctly dentate form. Fig. 1. — Micrarionta v. canescens (A. & R.), South Bay, Cerros Island. The Samarang surveyed from Japan to Borneo, going and return- ing by the Cape route. They did not reach American shores, and touched Africa only at the Cape, where no such species as H. canescens is found. It seems to be one of several species without definite locality which Reeve inserted. Captain Belcher who com- manded the Samarang had previously explored Cerros Island in the ■Sulphur, and probably he added H. canescens to the Samarang shells from his former collection. By its columellar tooth M. canescens has affinity to M. levis. Whether it will eventually be united to veatchii or to levis remains to be decided, but it seems deserving of at least subspecific rank. Micrarionta levis (Pfeiffer). PI. XVI, figs. 48 to 52, 42 to 45. Helix levis Pfr., Zeitschrift fur Malakozoologie, II, 1845, p. 152; Syst. Conchyl. Cabinet, p. 249, pi. 36, fig. 17, type, fig. 16, var. Original description. — "Shell perforate, globose, thin, smooth, obliquely striate, obsoletely granulate, whitish, variously ornamented with series of dots or pellucid corneous bands. Spire short, rather acute. Whorls 5, but slightly convex, the last inflated. Aperture rotund-lunar, colored like the outside or fulvous within; peristome 388 PROCEEDINGS OF THE ACADEMY OF [May^ acute, somewhat labiate within, the columellar margin dilated above^ vaultingly reflexed, nearly covering the perforation. Alt. 13, diam. 46 [typographical error for 16] mm. Variety: with a sharplj^ defined, lengthened, tooth-like tubercle on the lower margin near the colu- mella (fig. 16)." Pfeiffer's figure of the type, pi. XVI, fig. 51, and of the variety pi. XVI, fig. 52, are copied photographically. This is a rather small species (diam. 17 to 20 mm.), compactly coiled, rather solid though generally somewhat thin, opaque white or very light brown, encircled with many blackish lines and narrow bands, which are more or less interrupted or speckled with white. The embryonic whorl is usually brown, rarely whitish. The surface of several post-embryonic whorls is minutely granulated. The last whorl is not distinctly striated spirally. Lip hardly expanded,, narrowly thickened within, at the columella it is dilated, and white- calloused within, the callus often ending abruptly below, or in form of a small tooth. Whorls 5 in small, up to 5| in large individuals. Specimens in the Academy are from San Rosario (Orcutt!); San Geronimo Island, fossil only (H. N. Lowe!); Lagoon Heads, Cerros Island, and Turtle Bay (H. Hemphill!); Asuncion Island, fossil only (Stearns). Also reported by Dall from Rosalia Bay, between the second and third localities above. Pfeiffer records that this species was taken by Hinds in "Cali- fornia." Hinds, on H. M. S. Sulphur, Capt. Belcher, visited Cali- fornia and Lower California, stopping October 28, 1839, at Turtle Bay, which is another name for S. Bartolome Bay, or Port, a good harbor a short distance below the projection of the peninsula below Cerros Island. As Hemphill found the species here in some abun- dance, I propose to select Port San Bartolome as the t3^pe locality. The Sulphur landed a party at this place to make observations for position. The geological features and marine shells are mentioned in Captain Beechey's narrative (Vol. I, p. 330), and I think it almost certain that Hinds, who was a good collector and conchologist^ picked up the Helix levis here. Small specimens, such as pi. XVI, fig. 45, and others of the same lot agree perfectly with Pfeiffer's description and his type figure. Others from Turtle Bay, such as figs. 42, 43, are larger, more elabo- rately decorated, and show more of a columellar tooth. Shells from San Rosario, Cerros Island (fig. 44), and Lagoon Heads, are practically identical with those from Turtle Bay. All of these places except Cerros Island are on the mainland. Other localities. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 389 have varying forms, which for the present I have designated by numbers, as follows: (1) Asuncion Island, not far below Turtle Bay, has a somewhat differing race (pi. XVI, fig. 48). The bands, translucent instead of brown, are usually fewer and broader — five or six, or sometimes as many as ten. Granulation indistinct or obsolete. Diam. 16 to 19 mm. All the specimens seen from this tiny, barren islet were dug out of fine sand. It probably occurs only fossil. It is much like Pfeiffer's figures of levis, but the granulation is scarcely visible^ (2) Var. crassula Dall (pi. XV, fig. 24) from Natividad Island (south of Cerros) is like the preceding in having few translucent bands, about 6 in the cotype figured. It is somewhat heavier than levis of equal size, and is a little more elevated. No granulation is now visible on the corroded surface. The columellar callus is heavy and prominent. Alt. 15, diam. 17 mm., with nearly oh whorls {levis of the same diameter has f of a whorl less). Fossil. (3) The variety from San Geronimo Island (pi. XVI, figs. 49, 50,. coll. by H. N. Lowe) resembles crassula in contour and banding. It is not quite so heavy, has a half whorl less, and is well enough preserved to show traces of granulation on the spire in some examples. It was found fossil. Specimens measure: Alt. 141, di am. 16^ mm.; 5 whorls. 14 , ' 151 " 5 " 14 , ' " 14.8 " 5 " ' 18 " (broken) It appears that on these small, barren islets the levis stock has deteriorated in size, often becoming more globose, and finally has died out. The weak sculpture and usually small number of bands (in comparison with Turtle Bay levis) are probably ancestral characters^ preserved in these isolated colonies. So far as I know, these dimin- ished races are extinct. The bands of these helices, brown or blackisk in life, become translucent gray in long dead or fossil specimens. (4) M. levis globosa n. subsp. PL XVI, figs. 46, 47. The shell is glohose-conic, higher than levis, with very little of the granulation of that species, solid, glossy, multilineate with brown on a white ground, or sometimes bluish-white without bands. Columella strongly- toothed. Alt. 20.3, diam. 22.3 mm., 5^ whorls; or higher, alt. and diam. 22 mm. Cerros Island, living. Probably Binney's two out- side figures 311, in Land and Fresh-water Shells, I, p. 177, represent this race. •390 PROCEEDINGS OF THE ACADEMY OF [May, Micrarionta areolata ('Sowb.' Pfr.). PI. XVI, figs. 25 to 33. Helix areolata Sowb. ms., Pfr. Zeitschr. f. Malak., II, p. 154, 184.5; in Philippi, Abbildungen, etc., II, p. 184, pi. 9, f. 4; Conchylien Cabinet, p. 248, pi. 36, f. 10-13. Crosse and Fischer, Miss. Sci. Mex., Moll., p. 262, pi. 11, f. 4. Epiphragmophora areolata (Sowerby) Dall, Proc. A. N. S. Phila., 1900, p. 100. Helix areolata was described by Pfeiffer from specimens brought liome by Hinds, with no more informing locaUty than ''California." In a later publication he adds " on the Columbia River in California. " Several places visited by Hinds on the Sulphur along the coast allow a wide range of choice for the type locality: San Quintin Bay, Cerros Island (where no shells seem to have been collected by Hinds) , Turtle (Bartolome) Bay, and Magdalena Bay, where several days were spent. Fig. 2. — a, b, c, type of Helix areolata; d, H. areolata, variety, graphically from the Conchylien Cabinet. Copied photo- Pfeiffer described it as having the columella unidentate," diam. maj. ^6, min. 23, alt. 18 mm.^ The specimen measured, presumably considered the type, was figured by Philippi (Abbildungen, etc.) and again in the Conchylien Cabinet, pi. XXXVl, figs. 10-12. These figures are copied photo- graphically in text-figure 2 a, b, c. Reeve and Crosse have figured specimens of the tessellated Magda- tena Bay form, and some in the Academy Museum, received from Sowerby many years ago (pi. XVI, fig. 4) are of the same rather •depressed race, and agree well with Pfeiffer's figures, though neither 6 Pfeiffer later qualified this by the expression "pkrumque unidentato," and in the Conchylien Cabinet he says the columella of the type is "iindeutlich ein- zdhnig," and recognizes two varieties: "Variety 1. Smaller, more globose; umbilical perforation almost closed; columellar tooth distinct and strong, fig. 13. Variety 2. With the columellar tooth entirely wanting." ' Pfeiffer measured the altitude of HeHces along a line parallel to the axis of the shell, and not to the base of the lip, as is now done. By the modern system it would be 22 mm. high. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 391 of them is fully mature. I think, therefore, that "Magdalena Bay" should undoubtedly be taken as the type locahty of H. areolata. Further information is needed to determine the exact place in that neighborhood where shells agreeing with Pfeiffer's figures 10-12 (my text-fig. 2) are found, whether on the mainland or on Margarita Island. None of the shells before me are exactly localized. They bear the general locality "Magdalena Bay." It is evident from the five lots seen that different colonies vary in size, elevation, and degree of maculation.* Pfeiffer's type and the specimens received from Sowerby are more depressed than most other lots. The more northern localities cited for areolata by Dr. Cooper and others pertain, I believe, to forms of the levis group, which is known to occur from Asuncion Island northward, a region where areolata does not occur. The known areas of levis and areolata are separated by a long reach of coast whence no land snails are known. The Natividad Island specimen I dissected as areolata (1898) is a form of veatchii. With the exception of var. exanimata Cooper, areolata is not known to occur elsewhere than about Magdalena Bay, where it inhabits one of the dryest regions in the world. The shell is opaque white, with ochre-lirown bands broken into square spots, very variable in number and arrangement, as shown in the figures. In one lot, markings are absent, or indistinct and corneous. The embryonic whorl is grayish corneous or yellowish corneous. The columella varies from simple to distinctly toothed. The size varies. Alt. 21 , diam. 25 mm.; b\ whorls. 18 , " 23.3 " 16.3, U ^Q u 4! '' (1) Var. arida (pi. XVI, figs. 39, 40, 41). Small, thin, white, or having sparse markings of typical form and color; lip hardly or not thickened, columella concave, not toothed. Descent of the last whorl to the aperture deeper and longer than in any other form of areolata. Alt. 14, diam. 18 mm.; 4| whorls. " 15, '' 181 '' 4f '' Magdalena Bay (R. C. Macgregor). *The locality "Margarita Bay, Newcomb," quoted by Dall, must have been an error or slip of Newcomb's for Magdalena Bay, or more likely Margarita Island, which guards the bay, since, so far as I can learn, there is no Margarita Bay on that coast. 26 392 PROCEEDINGS OF THE ACADEMY OF [May, (2) Var. scammoni (pi. XVI, figs. 34, 35, 36). Small, with many or few narrow brown bands (translucent gray in fossil or dead shells), continuous or nearly so, sometimes wanting. Columellar tooth usually developed, often weak, sometimes wanting. Alt. 15, diam. 20.3 mm.; whorls 4f. 17.8, " 22 " '' 4f. 17, '' 20.5 '' '' 5|. Magdalena Bay (W. M. Gabb), 14 specimens. Pfeiffer's fig. 13 (copied in my text-fig. 2, d) was probably this variety, which I name for Capt. Scammon, who has given a good account of this coast. (3) Var. aspersa (pi. XVI, figs. 37, 38). Small, last whorl ^Zo6ose, spire short. With wide marbled brown bands resembling those of M. veatchii or Helix aspersa in pattern. Columellar tooth distinct or indicated. Alt. 17.3, diam. 20 mm.; 4f whorls. " 14.8, " 17 " Magdalena Bay (W. M. Gabb). (4) Var. exanimata Cooper, Proc. Col. Acad. Sci. (2) III, p. 216, pi. XIV, fig. 7, from Espirito Santo Island, in the Gulf of California, is known "to me only by the original account. I would expect it to be specifically different. It is the only form of this group yet found on the gulf side of the peninsula. Helix decorata Pfr. (Conchyl. Cab., p. 249, pi. XXXVI, figs. 14, 15), the locality of which is unknown, may be a fully colored, thin, de- pressed form of areolata. It has been referred to H. pisana with doubt, and seems to-be a ''lost species. " It is not Helix decorata Fer. I have copied the figures of decorata in text-fig. 3. ^ «x«^ ^ Fig. Z.-^Helix decorata Pfr., copied from the Conchijlien Cabinet. Explanation of Plates XV, XVI. Plate XV. — Figs. 1, 2, 3. — Micrarionta veatchii 'Nc' Tryon. North end of Cerros Island. H. N. Lowe. A. N. S. P. No. 106,016. Fig. 4.—M. veatchii. Cerros I. Gabb. No. 10,261. Fig. 5.—M. veatchii. Cerros I. Hemphill. No. 60,034. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 393 Figs. 6, 7. — M. veatchii. Cerros I. Newcomb. Two of the cotypes. No, 10,263. Fig. 8.—M. veatchii, var. 6. Turtle Bay. Hemphill. No. 60,038. Fig. 9. — Micrarionta veatchii, var. 5. Turtle Bay. Hemphill. No. 60,046. Fig. 10. — Micrarionta veatchii, var. leucanthea Dall. Cotype, U. S. Nat. Mus. No. 107,627. Fig. 11. — Micrarionta veatchii, vax. 5. Turtle Bay. Hemphill. No. 60,041. Fig. 12. — Micrarionta veatchii, var. 4. Natividad Island. Anthony. No. 69,646. Figs. 13, 14:.— Micrarionta veatchii, var. 3. Cerros Island. Hemphill. No. 60,036. Figs. 15, 16. — Micrarionta veatchii, var. 2. Cerros Island. Hemphill. No. 60,035. Figs. 17-20. — Micrarionta pandorce Forbes. S. Benito Island. Anthony. No. 66,092. Figs. 21, 22, 23. — Micrarionta pandorce, Forbes. S. Benito Island. Hemp- hill. No. 10,297. Fig. 24. — Micrarionta areolata crassula, Dall. Cotype Natividad Island, Anthony. U. S. Nat. Mus. No. 107,623. Plate XVI.— Figs. 25, 2%.— Micrarionta areolata 'Sowb.' Pfr. Magdalena Bay. HemphiU. A. N. S. No. 10,298. Fig. 27.— ikf. areolata. White form. No. 10,299. Fig. 28. — M. areolata. Specimen received from Sowerby. No. 10,300. Figs. 29, 30, 31.— M. areolata. Magdalena Bay. W. M. Gabb. No. 10,264. Figs. 32, 33.— M. areolata. Santa Maria Bay. Stearns. No. 10,301. Figs. 34, 35.— M. areolata scammoni Fils. Cotypes. Magdalena Bay. Gabb. No. 10,302. Fig. 36.— il/. areolata scammoni Pils. Cotype. No. 10,266. Fig. 37, 38. — M. areolata aspersa Pils. Cotvpes. No. 10,265. Figs. 39, 40, 41.— M. areolata arida Pils. Cotypes. No. 76,208. Figs. 42, 43, 45.— M. levis Pfr. Turtle Bay. Nos. 60,045, 60,042. Fig. 44.— M. lems Pfr. Cerros Island. HemphUl. No. 60,037 Fig. 46.— ilf. levis globosa Pils. Type. W. M. Gabb. No. 10,304. Fig. 47.— M. levis globosa Pils. No. 10,305. Fig. 48. — Micrarionta levis var. Asuncion Island. R. E. C. Stearns. No. 10,306. Figs. 49, 50.— Micrarionta levis var. 1. San Geronimo Island. H. N. Lowe. No. 109,064. Fig. 51.— Micrarionta levis Pfr. Photographic copy of Pfeiffer's type figure. Fig. 52.— Micrarionta levis var. Photographic copy of Pfeiffer's figure. 394 PROCEEDINGS OF THE ACADEMY OF [June, A REVISION OF THE SPECIES OF THE GENUS NEMOBITJS (ORTHOPTERA . GRYLLID^) FOUND IN NORTH AMERICA NORTH OF THE ISTHMUS OF PANAMA. BY MORGAN HEBARD. The genus Nemohius is typical of the group Nemobiites, the other genera of which are more or less aberrant. The group Nemobiites stands at the head of the subfamily Gryllinae, which is the second division of the family Grylhdse. All of the species of Nemohius are of small size and are rather delicate in structure; their bodies are covered with long hairs. The plasticity in certain species, the lack of characters in the male genitalia and the great variability in size, wing length, and coloration, all combine to make the study of the genus difficult. Added to this, the many incorrect determinations and frequent synonyms have caused the task of correcting the nomenclature to be unusually complex. An effort is made in the present paper to afford sufficient information for subsequent workers to be able satisfactorily to determine material of either sex, but it is certain that, especially in the males of some species, no single specific character can be considered absolutely trustworthy, and careful consideration of all the specific differences must be made before a safe conclusion can be reached. The large series of different species before us show con- clusively that, where some character may be safely relied upon in a large series of the same species from one region, that character is often obscure or unreliable in series from other portions of the insects range and in consequence can only be used to supplement the com- bination of characters found in that species. Genus NEMOBIUS Serville. 1839. Nemohius Serville, Hist. Nat. Ins., Orth., p. 34.5. [Generic de- scription.] 1869. Argizala Walker, Cat. Dermap. Saltat. Br. Mus., I, p. 60. [Generic description.] 1874. Nemohius Saussure, Miss. Sci. Mex., Rech. Zool., VI, p. 380. [Key- to American species and descriptions of new species.] 1877. Nemohius Saussure, Melang. Orth., II, Fasc. V, p. 236. [Full generic description, key to species of the world and many descriptions of new species.] 1913.] NATURAL SCIENCES OF PHILADELPHIA. 395 1896. Nemobius Scudder, Jour. N. Y. Ent. Soc, IV, p. 99. [Key to North American species and descriptions of new species.] 1896. Noyiobius Pantel, Anal. Soc. Espan. Hist. Nat., XXV, p. 47. [Mor- phological studies.] 1896. Nemobius Scudder, Psyche, VII, p. 431. [Key to North American species and descriptions of new species.] 1897. Nemobius Saussure, Biol. Cent. Amer., Orth., I, p. 221. [Key to Central American species and descriptions of new species.] 1900. Nemobius Blatchley, Psyche, IX, p. 51. [The Indiana species with descriptions of new species.] 1903. Nemobius Blatchley, Orth. of Indiana, p. 419. [Numerous notes and description of one new species.] 1904. Nemobius E. M. Walker, Can. Ent., XXXVI, p. 181. [Numerous notes and descriptions of new species.] 1906. Nemobius Kirby, Synon. Catal. Orth., II, p. 13. [List of species.] The genus included two species. Genotype — Nemobius {Nevio- hius) sylvestris [Acheta sylvestris] (Bosc), selected by Kirby, 1906. Generic Description.— ^ize small; form compact; body pub.escent and sparsely clothed with long chsetiform hairs. Head rounded, a little flattened in front; interantennal protuberance feeble, obtuse and rather large; eyes oval, rather protuberant; maxillary palpi with distal extremity of terminal joint very moderately oblique. Pronotum a little wider cephalad than the head; lateral lobes with ventral margin horizontal, the ventro-cephalic and ventro-caudal angles projecting about the same and similarly rounded. Tegmina complete or abbreviate; in the male furnished with a rather simple tambourine, having only a single ulnar (oblique) vein which is longitud- inal, lengthened, developing from the angle of the stridulating (anal) vein; in the female the dorsal field is furnished with few but promi- nent longitudinal veins connected by transverse veinlets which are directed at right angles to the veins; the tegmina are always present in the North American species and are rounded at the apex; lateral field of tegmina occupied by five or six simple veins which are free from their bases. Wings strongly developed, abbreviate or absent. Ovipositor slender, long and straight, or shorter and very gently arcuate; apex very little enlarged, in all of the North American species the portion formed by the dorsal valves is armed with serra- tions or serrulations, the portion formed by the ventral valves is unarmed or supplied with minute, very widely spaced serrulations. Cerci of both sexes moderately long, tapering, and covered with hairs. Cephalic tibiae supplied with a few long slender hairs, caudal face only bearing a distinct tympanum, corresponding portion of cephalic face slightly swollen. Caudal femora greatly dilated; caudal tibiae with dorsal margin armed with a double row of extremely long, widely spaced, mobile spines (in the North American species, 396 PROCEEDINGS OF THE ACADEMY OF [June, four pairs are present on each tibia), and armed distad with three pairs of well developed spurs, the dorso-internal longer than any of the other distal spurs. Caudal metatarsus non-sulcate and unarmed dorsad, the distal extremity armed on both sides with long spines, of which the internal is much the longer, and above these are situated two minute teeth. Morphological Notes. — In the present genus the spines and spurs of the caudal tibiae are extremely interesting. In the study of the North American species Mr. A. N. Caudell first pointed out to the author a character in the distal spurs of the caudal tibiae which proves to be absolutely constant and of the greatest value. In four groups of North American species the internal disto-ventral spur is much longer than the external disto-ventral spur, in the remaining group these spurs are exactly equal in length. In the males of all of the North American species the proximo- internal spine of the caudal tibia is highly specialized in structure. It differs from the other spines in being very short, large at the base, irregularly conical, suddenly attenuate and soft to the immediate apex which is sharply pointed. The enlarged base is hard, of dark color and polished, the soft portion is light in color and somewhat translucent, while the immediate apex is hard and rather dark in color. Frequently the hard apex is missing, and in such cases there is every indication that it has been broken off. PanteP has carefully discussed this peculiar specialization in his interesting morphological studies in the present genus, and it has been casually noted in certain species by other authors." We find other interesting characters in the spines of the caudal tibiae of the North American species of the genus. In all of the species having the disto-ventral spurs unequal in length the spines (with the exception of the proximo-internal spine in the males, which we have discussed above) are above rounded and hairy, below concave with the margins of this sulcation minutely serrulate. In all of the species having the disto-ventral spurs equal in length, the disto-internal spine in the males is somewhat swollen near its base and its shaft is appreciably bent; the other spines (likewise with the exception of the proximo-internal spine in the males) are above rounded and hairy, below concave, but with the margins of this sulcation smooth. The apices of all of the spurs and spines of the 1 Anal. Soc. Esp. Hist. Nat., XXV, p. 47, 1896. 2 Saussure, Melarig. Orth., II, Fasc. V, p. 267, pi. 11, fig. VII, 6i, 1877. Brunner, Prodr. Europ. Orth., p. 424, 1882. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 397 Fig. 1. Fig. 2. Diagrammatic sketches of venation of male (Fig. 1) and female (Fig. 2) tegmina of Nemobius. 1 Mediastine Vein (Saussm-e and Brunner). 2 Humeral Vein (Saussure) = Anterior Radial Vein (Brunner). 3 Discoidal Vein (Saussure) = Posterior Radial Vein (Brunner). 4 Median Vein = False Discoidal Vein (Saussure) = Ramus of Posterior Radial Vein (Brunner). 5 Ulnar Vein = Oblique Vein (Saussure) = Anterior Ulnar Vein (Brunner) . 6 Anal Vein (Saussure) = Posterior Ulnar Vein (Brunner). A Axillary Veins. S. V Stridulating Vein. C Cordes or Postaxillary Veins. D. V Diagonal Vein. F Free Veins of Lateral Field. D.-A. R. B....Discoido-anal Root-basin. C. V Cross- veinlets. L. F Lateral Field. D. F Dorsal Field (which includes Apical Area). I. C Intermediate Channel. T Tambourine. A. N Anal Node, Musical Node, Node. A. A Apical or Distal Area. S. M Sutural Margin. C. M Costal Margin. Mgn. B. T... Approximate margin of Tegmina in brachypterous forms. M Speculum or Mirror. CC Cells formed by Cordes. I Interior Cell of Speculum. E Exterior Cell of Speculum. X Cells of Apical Area. S Stigma. 398 PROCEEDINGS OF THE ACADEMY OF [June, caudal tibiae are uncinate; smooth, sharp, and hard. Pantel has also discussed the peculiarities of the distal (or fourth) internal spine of the caudal tibia in his paper, where he has also given an excellent figure of the spines and spurs of the caudal tibia in the male and female of Nemobius Uneolatus Brulle. In the species having the disto-ventral spurs equal in length, the internal dorsal and median spurs have lateral fringes of hairs on these spurs more prominent and regular than in the other species. Comparison with Other Genera. — When compared with the genus to which it is most nearly related, Paranemohius Saussure, we find that Nemobius can be easily separated by the following characters: the lateral lobes of the pronotum are quadrate, not oblique; the tegmina of the male are provided with a tympanum; the vertex is slightly convex, not excavate and rostrate; the caudal tibiae are each armed with six, not five, distal spurs. The genus of next nearest relationship is Caconemobius Kirby, which differs in the lateral lobes of the pronotum which are not quadrate, the organs of flight which are absent and the cephalic tibiae which have no tympanum. From the other more nearly related genera, Nemobius may be readily separated by the characters found in the caudal tibiae which are armed with long, mobile, pilose spines and in the caudal metatarsi which are neither sulcate nor serrate dorsad. Distribution of the Genus in North America. — The northern boundary of the range of the genus is known to extend from Prince Edward Island westward across Canada to Calgary, Alberta; from the latter locality it has been found southward in the Yellowstone National Park and the Salt Lake Valley in Utah, these localities showing its extreme western distribution until southern Utah is reached, in which latitude it has been taken at St. George, Utah, Las Vegas, Nev., and the Panamint Valley in California to the Pacific coast at Los Angeles. The genus is apparently found everywhere else in the United States and Mexico south to the Isthmus of Panama, although the very few records from southern Mexico, Nicaragua, and Costa .Rica may possibly indicate that in these southern regions the genus is very scarce. In the West Indies the genus has been taken in the Bahamas, Cuba, and Granada. We consider the northern distribution of the genus in the Dominion of Canada probably limited by the spruce belt only, but so little work has been done so far north that nothing definite can at present be stated. No specimens have been taken in Arkansas, Oklahoma, 1913.] NATURAL SCIENCES OF PHILADELPHIA. 399 and on the majority of the West Indian islands, but careful work will show that the genus is well distributed in these regions with scarcely any doubt. No material is known from Yucatan, Honduras, Salvador and Panama, where the genus will almost certainly be found, though very possibly in few numbers. History. — The important references to the genus which apply to the North American species have already been given. Walker described the genus Argizala in 1869,^ which genus is monotypic and was synonymized by Saussure in 1877^ under Nemo- hius. We consider Argizala to be a valid subgenus, distinguished from the subgenus Allonemobius by the very large size, peculiar glossiness, much more transverse pronotum, longer spines of the caudal tibia and ovipositor with apex armed above with serrulations. This subgenus will probably be found to belong chiefly to the South American fauna when the species of the present genus from that continent have been carefully studied. Nemohius hrasiliensis, the genotype, is the only species of this subgenus known from North America. The following North American species have l)een wrongly referred to the genus Nemohius. In 1842, De Haan in Temminck'^ recorded two species of the genus Anaxipha as Gryllus (Nemohius) pulicarius and pumilus; this caused Walker to refer the first of these species with a query to Nemohius in 1869." Scudder described Nemohius circumcinctus in 1868,'^ which name was used by Walker,^ Thomas,^ and Saussure^*^ until 1896, when the species was correctly synonymized as Proihacustes mexicana Saussure by the original author of the synonym." In 1896,^- Scudder described two species of Gryllidae as Nemohius distinguendus and ensifer, and later in the same year^^ two more species as Nemohius pictus and delicatus. All four of these species unquestionably belong to the genus Miogryllus, as our examination of the types show. Saussure in the next year^^ followed Scudder 3 Cat. Dermap. Saltat. Br. ilf ms., I, p. 60. KMelang. Orth., II, pp. 241, 25.5, 256. = Verhand. Natuur. Gesch. Nederl. Overz. Bezitl., Orth., p. 226. « Cat. Dermap. Saltat. Br. Mus., I, p. 111. ' Proc. Bost. Soc. Nat. Hist., XII, p. 143. « 1869. Cat. Dermap. Saltat. Br. Mus., I, p. 57. 3 1870. Am. Ent., II, p. 206. 1° 1874. Miss. Sci. Me.v., Rech. Zool., VI, p. 385. " Jour. N. Y. Ent. Soc., IV, p. 99. ^^Jour. N. Y.Ent. Soc., IV, pp. 100, 101. 13 P.syche, VII, pp. 431, 433, 434. 1* Biol. Cent. Amer., Orth., I, pp. 222, 224. 400 PROCEEDINGS OF THE ACADEMY OF [June, when quoting the latter's records of distinguendus and ensifer. In 1906/5 Kirby followed Scudder in quoting pictus as a Nemohius, but two years later Rehn and Hebard^^ correctly quoted the species for the first time as a Miogryllus. Kirby also gives Nemohius exiguus Say in his list/^ though that species has long been known to belong to the genus Anaxipha. Examination of the types shows that Nemohius alleni Morse/^ belongs to a different genus. An exotic species has been recorded as a North American species but once. In 1906, CaudelP^ recorded as Nemohius fasciatus from Sapucay, Paraguay, specimens of the South American species Nemohius rufus. The following records cannot be determined without examination of the material. Theresa of Bavaria's-" record of Nemohius exiguus from Brazo de Loba, Lower Magdalena River, Colombia, South America, and Woodworth's-^ records of Nemohius mexicanus and neomexicanus from California. We have omitted Nemohius trinitatis Scudder, owing to the fact that until additional material from Trinidad is secured little definite can be said of this insect. The type series is in bad condition, and we feel justified in stating only that the specimens belong to the subgenus Eunemobius and may prove to be an insular race of Nemohius carolinus. Though the type series are all from the South American fauna, the specimens recorded by Brunner-- as Nemohius cuhensis from Balthazar, Granada, have been examined and found to belong probably to this insect. Material Examined. — ^2,088 specimens: 890 males, 1,144 females and 54 nymphs. In the preparation of the present work the types of the following species have been before us : — {Nemohius utahensis Scudder, synonym of Nemobius fasciatus (De Geer).) Nemohius fasciatus socius Scudder. (Nemohius canus Scudder, synonym of Nemohius fasciatus socius Scudder.) {Nemohius aterrimus Scudder, synonym of Nemohius fasciatus socius Scudder.) 15 Synon. Catal. Orth., II, p. 17. ^^Proc. Acad. Nat. Sci. Phila., 1908, p. 401. 17 1906. Synon. Catal. Orth., II, p. 19. 18 1905. Psyche, XII, pp. 21, 22. 19 Proc. U. S. Nat. Mus., XXX, p. 243. 20 1900. Berl. Ent. Zeitschr., XIV, p. 258. 21 1902. Univ. Cal. Agr. Exp. Sta. Bull, p. 142, fig. 7a. 22 1893. Proc. Zool. Soc. London, 1893, p. 609. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 401 {Nemobius hasiatus Saussure, synonym of Nemobius fasciatus socius Scudder.) Ndnobius fasciaius abortivus Caudell. Nemobius maculatus Blatchley. Nemobius griseus E. M. Walker. Nemobius griseus funeralis Hart. Nemobius ambitiosus Scudder. Nemobius brasiliensis {¥. Walker). av„ii-ov ^ {Nemobius melleus Scudder, synonym of hemobius brasihensis I . Walkei.) Nemobius patttdi n. sp. Ne))i(ihiiis Iirinitri n. sp. , • o \ (Ncninhuis rnlnlicus Scudder, synonym of Nemobius cubensis Saussure.) Nemuhiiis ciiIk itsis mormonius Scudder. {Nemobius comanchus Saussure, synonym of Nemobius cubensis mormonius Scudder.) Nemobius palustris Blatchley. Nemobius palustris aurantius Rehn and Hebard. Nemobius carolin us Scudder. c'„„rUav ^ {Nemobius angusticollis E. M. Walker, synonym of ^emoblus carolmus bcudder.J Nemobius caroUnus brevicaudus Bruner. Nemobius carolinus neomexicanus Scudder. Nemobius confusus Blatchley. A large portion of the material is located in the author's collection, that of the Academy of Natural Sciences of Philadelphia and the Hebard Collection ex Bruner. We are deeply indebted to Mr. W. S. Blatchley, Dr. E. M. Walker, and Mr. Charles A. Hart for the loan of their types of the genus; to Dr. Samuel Henshaw, for the privilege of studying all of the types and other material in the Scudder Col- lection and to Mr. A. N. Caudell, for the opportunity of studying the types of Nemobius in the National Museum and the loan of that institution's entire collection of Nemobius with the exception of the types. Mr. W. T. Davis, Messrs. Sherman and Brimley, Professor A. P. Morse, Mr. J. Chester Bradley, Mr. Charles Schaeffer of the Museum of the Brooklyn Institute of Arts and Sciences, and Mr. Lutz of the American Museum of Natural History, have also been very kind and have aided us greatly in sending their collections of Nemo- bins for examination. Key of the North American Species of the Genus Nemobius. A — Disto-ventral spurs of caudal tibia unequal in length. All spines of caudal tibia (excepting in the male the proximo- internal spine) concave below with margins of this sulcation minutely serrulate, the disto-internal spine not specialized. Ovipositor with ventral margin of apex unarmed. B.— Ovipositor nearly rigidly straight; nearly as long as or longer than the caudal femur (excepting in the geographic races Nemobius fasciatus socius and Nemobius griseus funeralis and in the species Nemobius panteli). 402 PROCEEDINGS OF THE ACADEMY OF [June,. C. — Ovipositor with dorsal margin of apex obliquely subtruncate,. armed with teeth (Subgenus AUonemohius).. D. — Ovipositor with dorsal margin of apex armed with not very sharp teeth. E. — Ovipositor distinctly longer than caudal femur (in occasional specimens this character does not hold). F. — Size large to small for genus. Apex of ovipositor narrowly sublanceolate, enlarged portion longer. Coloration rusty black to dusky brown, rather immaculate, occiput obscurely striped fasciatus (De Geer). FF. — Size medium to small for the genus. Apex of ovipositor sublanceolate, enlarged portion shorter. Coloration very dark, occipital stripes indistin- guishable .fasciatus abortivus Caudell. EE. — Ovipositor as long as or shorter than caudal femur,, (in occasional specimens this character does not hold). Coloration as in fasciatus fasciatus socius Scudder. DD.— Ovipositor with dorsal margin of apex armed with very sharp teeth. E. — Size medium, form robust. Ovipositor as long as caudal femur, this length constant. F. — Ovipositor with rather heavy sublanceolate apex armed with rather heavy teeth. Coloration dark brown maculate with piceous, pale yellowish line about eyes excepting on infra-ocular portion of the gense, no other striking markings on head maculatus Blatchley. FF. — Ovipositor with similar but somewhat shorter apex armed with somewhat heavier serrations. Colora- tion dark brown, somewhat maculate with a darker shade, head very strikingly and character- istically marked ambitiosus Scudder. EE. — Size somewhat smaller, form more slender. Ovipositor extremely variable in length. (Coloration of head below antennae strikingly piceous, occiput obscurely striped.) F. — Ovipositor usually much longer than caudal femur. Coloration light to dark brown with a grayish suffusion griseus E. M. Walker. FF. — Ovipositor shorter than caudal femur. Coloration very dark brown with a grayish suffusion griseus funeralis Hart. CC. — Ovipositor with dorsal margin of apex straight, armed with closely spaced serrulations. D. — Pronotum with length considerably more than half the width. Ovipositor considerably shorter than caudal 1913.] NATURAL SCIENCES OF PHILADELPHIA. 403 femur. Size large, form compact. Coloration very dark brown, not iridescent (Subgenus Brachynemobius) panteli n. sp. DD. — Pronotum with length approximately half the width. Ovipositor nearly as long as caudal femur. Size very large, form more graceful. Coloration very pale, cream buff to tawny olive, moderately iridescent (Subgenus Arigizala) brasiliensis F. Walker. BB. — Ovipositor gently curved; about two-thirds as long as caudal femur (Subgenus Neonemobius). C. — Ovipositor more decidedly curved, dorsal margin of apex armed with serrations. Form robust. D. — Size large. Ovipositor heavier and very decidedly curved for the genus; apex armed with blunt serrations. Coloration chestnut, decidedly marked with very dark brown toltecus Saussure. DD. — Size medium. Ovipositor less heav}^ and not as decidedly curved; apex armed with very sharp serrations. Coloration clay color, mottled and flecked with dark brown bruneri n. sp. CC. — Ovipositor very gently curved, dorsal margin of apex armed with very fine serrulations. Form not so robust. D. — Size small. Coloration not solid. E. — Form quite slender. Coloration dark brown, very little mottled, without occipital darker line cubensis Saussure. EE. — Form not as slender. Coloration usually not as dark brown, frequently very much paler, more mottled and with an occipital darker line cubensis mormonius Scudder. DD. — Size very small. Coloration solid. E. — Coloration of head, pronotum and liml)s solid Vandyke brown; tegmina and dorsal surface of abdomen dark clove brown palustris Blatchley. EE. — Coloration of head, pronotum and limbs almost uniform ochraceous; tegmina and dorsal surface of abdomen black palustris aurantius Rehn and Hebard. AA. — Disto-ventral spurs of caudal tibia equal in length. Disto- internal spine of caudal tibia specialized (in male only), all- other spines (excepting in the male the proximal internal spine) concave below with margins of this sulcation smooth. Ovipositor with ventral margin of apex armed with minute, widely spaced serrulations (Subgenus Eunemobius.) B. — Size medium. Maxillary palpi not immaculate, rather yellowish with tip of terminal segment darkened. Colora- tion rather pale brown, dorsal surface of female abdomen 404 PROCEEDINGS OF THE ACADEMY OF [June^ with three rows of paler spots. Apex of ovipositor sub- lanceolate, armament of same heavy. C. — Form rather stout. D. — Coloration dark mummy brown, spots of dorsal surface of female abdomen moderate in size. Ovipositor more than half as long as caudal femur carolinus Scudder. DD. — Coloration wood brown, spots of dorsal surface of female abdomen extremely large. Ovipositor less than half as long as caudal femur carolinus hrevicaudus Bruner. CC. — Form somewhat more slender. (Coloration usually con- siderably paler than in carolinus) carolinus neomexicanus Scudd. BB. — Size small. Maxillary palpi immaculate bone white. Colora- tion solid, very dark brown, dorsal surface of female abdo- men immaculate. Apex of ovipositor lanceolate, armament of same very heavy confusus Blatchley. The present key is of necessity somewhat involved owing to the difficulties found in the present genus and commented upon at the beginning of this paper. In some species it may be seen that certain characters, which are of little or no value in the majority of species, are of great importance. The color pattern of the head is distinctive in Nemobius maculatus, ambitiosus, griseus and griseus funeralis. The coloration of the maxillary palpi is distinctive in Nemobius carolinus and its races and particularly so in confusus. Certain important differences exist in the North American species of the genus which are of sufficient value to warrant the erection of four subgenera and the recognition of Walker's Argizala as another subgenus. A study of all the species of Nemobius of the world would probably show the advisability of considering some of these groups separate genera, while many other groups not found in North America would constitute still other genera and subgenera. The genotype of Nemobius is Nemobius sylvestris of Europe, which species belongs to a group differing very widely from any of those here treated in the following combination of characters. Spines of caudal tibia unmodified in both sexes, disto-ventral spurs of same unequal, but not nearly as much so as in the North American species having this character. Ovipositor longer than caudal femur, nearly rigidly straight; apex very narrowly sublanceolate and wholly unarmed. Color pattern of head distinctive. Nemobius sylvestris bears a superficial resemblance to Nemobius aynbitiosus. Examination of other exotic species shows that the genus Nemobius 1913.] NATURAL SCIENCES OF PHILADELPHIA. 405 is divided into numerous natural groups everywhere in its distribution as in North America. A number of species treated in the present paper are found in both brachypterous and macropterous forms, while others are known from brachypterous or macropterous individuals only. These facts have been treated under the Biological Notes for each species, as habit and environment appear to have been chiefly instrumental in such development. These differences are almost wholly without value as specific characters, and, since they have been frequently so used^ have given rise to much confusion in the past literature. Subgenus ALLONEMOBIUS n. subgen. The subgenus includes four species and three geographic races from North America. Type of Subgenus — Nemobius fasciatus [Gryllus fasciatus] (De Geer) . Suhgeneric Description. — Size large to small for the genus. Disto- ventral spurs of caudal tibia very unequal in length. Proximo- internal spine of caudal tibia in male specialized as described under Morphological Notes for the genus; other spines of caudal tibia below concave, with margins of this sulcation minutely serrulate in both sexes, the disto-internal spine not specialized. Ovipositor long and nearly rigidly straight; apex with margin of portion formed by dorsal valves obliquely subtruncate and armed with teeth, the portion formed by ventral valves unarmed. Nemobius fasciatus (DeGeer). 1773. Gryllus fasciatus De Geer, Mem. I'Hist. Ins., Ill, p. 522, PI. 43, fig. 5. (Original description.) [Pennsylvania.] 1775. A[cheta] hospes Fabricius, Syst. Ent., p. 281. (Description.) [America.] 1791. Gryllus hospes Olivier, Encycl. Meth., VI, p. 636. (First use of name.) 1835. Acheta servilis Harris, Hitch., Kept. Geol. Mass., 2d ed., p. 576. [Massachusetts.] 1841. Acheta vittata Harris, Ins. Inj. Veget., 1st ed., p. 123. (Description.) "1847. ^^ Acheta vittata Fitch, Am. Jour. Agr. Sci., VI, p. 146. [New York.]" 18.54. Acheta vittata Jaeger, No. Am. Ins., 1st ed., p. 160. [Brief notes on habits.] 1861. Nemobius viltatus Packard, Rept. Nat. Hist. Me., 1861, p. 376. [Chamberlain Farm, Maine.] 1862. N[emobius] exiguus Scudder (not Acheta exigua Say, 1825), Bost. Jour. Nat. Hist., VII, pp. 429, 430. [St. Louis, Missouri; Minnesota.] 1862. N[emobius] vittatus Scudder, Bost. Jour. Nat. Hist., VII, p. 430. [Massachusetts; Maine; Connecticut.] 1862. N[emobius] fasciatus Scudder, Bost. Jour. Nat. Hist., VII, pp. 430, 431. (In part.) [Massachusetts; Delphi, Indiana.] ^ A reference in quotation marks indicates in the present paper that the author has been unable to see that paper, otherwise all of the references have been verified. 406 PROCEEDINGS OF THE ACADEMY OF [June, 1863. Acheta vittata Rathvon, Rept. U. S. Dept. Agr., 1862, p. 380, PI. fig. 16. [Lancaster, Pennsylvania.] "1865. Nemobius viltatus Thomas, Trans. 111. St. Agr. Soc, V, p. 443. [Illinois.]" 1868. Nemobius fasciatus S. I. Smith, Proc. Portl. Soc. Nat. Hist., I, p. 144. [Norway, Maine, at light; Treats Island near Eastport, Maine.] 1868. Nemobius vittatus S. I. Smith, Proc. Portl. Soc. Nat. Hi,st., I, p. 144. [Norway, Maine. Abundant over State.] 1868. Nemobius vittatus Scudder, Proc. Bost. Soc. Nat. Hist., XI, pp. 308, 309. [New England. Notes on stridulation.] 1869. Nemobius fasciatus Walker, Cat. Dermap. Saltat. Br. Mus., I, p. 56. (In part.) [North America.] 1869. Nemobius riltaius Walker, Cat. Dermap. Saltat. Br. Mus., I, p. 57, 114. [North America; Indiana; Nova Scotia.] 1870. Nemobius viWiiu^ Riley, Am. Ent. and Bot., II, p. 373. [New Har- mony, Indiana. Gnaws fruit.] "1872. Nemobius vittatus Smith, Rept. Conn. Bd. Agr., 1872, pp. 353, 370." "1872. Nemobius fasciatus Smith, Rept. Conn. Bd. Agr., 1872, pp. 354, 379." 1872. Nemobius vittatus Walker, Can. Ent., IV, p. 30. [Nova Scotia.] 1872. Nemobius vittatus Scudder, Final Rept. U. S. Geol. Surv. Nebr., p. 249. [Banks of Platte River, Nebraska.] 1872. Nemobius vittatus Glover, Illust. N. A. Ent., PI. 3, figs. 9, 10. [Figures of cf and 9 .] 1872. Nemobius fasciatus Glover, Illust. N. A. Ent., PI. 6, fig. 13. [Figure of 9.] 1872. Nemobius exiguus Glover (not Acheta exigua Say, 1825), Illust. N. A. Ent., PL 7, fig. 18. [Figure of macropterous 9 •] 1874. Nemobius vittatus Scudder, Hitch. Rept. Geol. N. H., I, pp. 364, 365, fig. 48. [All over New Hampshire, even in White Mountain region.] 1874. Nemobius fasciatus Scudder, Hitch, Rept. Geol. N. H., I, p. 365. (In part.) [New Hampshire; Missouri.] 1876. Nemobius vittatus Provancher, Nat. Can., VIII, pp. 60, 61. [Better description. Quebec, Quebec. Very common everywhere in fields.] 1876. Nemobius fasciatus Provancher, Nat. Can., VIII, p. 61. [Better description. Quebec, Quebec] 1877. Nemobius fasciatus Saussure, Melang. Orth., II, p. 243. [Notes and measurements.] 1877. Nemobius vittatus C. E. Bessey, Bienn. Rept. Iowa Agr. Coll., VII, p. 206. [Central Iowa.] 1877. Nemobius vittatus Packard, Am. Nat., XI, p. 422. [Experiments on sense organs.] 1884. Nemobius vittatus Riley in Kingsley, Stand. Nat. Hist., II, p. 181. [Common in our fields and pastures, [Eastern United States].] 1885. Nemobius vittatus Bruner, Bull. Washb. Coll., I, p. 126. [Topeka; MacPherson and Barber Counties, Kansas.] 1886. Nemobius vittatus Caulfield, Can. Ent., XVII, p. 211. [Montreal, Quebec. Abundant.] 1886. Nemobius fasciatus Caulfield, Can. Ent., XVII, p. 211. [Montreal, Quebec. Not as abundant.] 1887. Nemobiiis vittatus Caulfield, Can. Rec. Sci., II, p. 393. [Toronto, Ontario. Common.] "1888. Nemobius fasciatus Fernald, Ann. Rept. Mass. Agr. Coll., XXX, p. 100. [New England.]" 1889. Nemobius vittatus Davis, Ent. Am., V, p. 79. (In part.) [Staten Island, New York.] 1890. Nemobius vittatus Crane in Smith, Cat. Ins. N. J., p. 408. [Caldwell, New Jersey. Common.] 1890. Nemobius fasciatus Bruner in Smith, Cat. Ins. N. J., p. 408. [James- burg, New Jersey.] 1890. Nemobius fasciatus Smith, BuU, N. J. Exp. Sta., K, p. 41. [On cranberry bogs.] 1913.] NATURAL SCIENCES OF PHILADELPHIA. 407 1891. Nemobius fasciatus McNeill, Psyche, VI, p. 6. [Rock Island, Illinois. Abundant everywhere.] 1891. Nemobius vittatus Osborn, U. S. Dept. Agr., Div. Ent., BuU. 23, p. 59. [Ames, Iowa. Completely covered the surface of the ground that year.] 1892. Nemobius vittatus Osborn, Proc. Iowa Acad. Sci., I, Pt. 2, p. 119. [Ames, Iowa, and State. Very common in meadows and especially hillsides with southern exposure.] 1892. Nemobius fasciatus Smith, Bull. X. J. Exp. Sta., XC, p. 31. [Xot rare in New Jersey.] 1892. Nemobius vittatus Smith, Bull. X. J. Exp. Sta., XC, p. 31. [Xot common in Xew Jersey.] 1892. Nemobius vittatus Blatchlej , Proc. Ind. Acad. Sci., 1891, pp. 135, 136. [Enormous numbers in Indiana.] 1893. Ne)7iobius fasciatus Bruner, Publ. Xebr. Acad. Sci., Ill, p. 32. [General and common in eastern half of Xebraska.] 1893. Nemobius vittatus Bruner, Publ. Xebr. Acad. Sci., Ill, p. 32. [About the same range in Xebraska as fasciatus.] 1894. Nemobius fasciatus Garman, Orth. of Ky., p. 6. [Very common everywhere in meadows and pastures in Kentucky. Brachypterous form much more common.] 1894. Nemobius fasciatus Beutenmiiller, Bull. Am. Mus. Xat. Hist., VI, pp. 266, 267, PI. 5, fig. 9. [Xew York, X. Y.] 1894. Nemobius fasciatus vittatus Beutenmiiller, Bull. Am. Mus. Xat. Hist., VI, p. 267, PI. 5, fig. 10. [Xew York, X. Y.] 1896. Nemobius fasciatus Scudder, Jour. X. Y. Ent. Soc, IV, pp. 100, 102, 103. (In part.) [Xorthern New England; Michigan; Manitoba; South Dakota; Big Horn Mountains and Pine Cliffs (Bluffs), Wyoming; South Bend, West Point, Sydney and Lincoln, Xebraska; Shawnee, Kansas; Vir- ginia; Mount Graylock, Massachusetts; Decatur, Alabama.] 1896. Nemobius utahensis Scudder, .Jour. X. Y. Ent. Soc, IV, pp. 100, 103, 104. (Description.) [Spring Lake and Salt Lake VaUey, Utah.] 1896. Nemobius cubensis Scudder, Jour. X. Y. Ent. Soc, IV, p. 105. (In part.) [Ogle County, Illinois.] 1896. Nemobius fasciatus Pantel, Anal. Soc. Espan. Hist. X^'at., XXV, p. 51. (Morphological studies.) 1896. Nemobius fasciatus Scudder, Psyche, VII, p. 432. (Xew key.) 1896. Nemobius utahensis Scudder, Psyche, VII, p. 432. (Xew key.) 1896. Nemobius fasciatus form vittatus Piers, Proc. and Trans. Xova Scotia Inst. Sci., IX, Pt. 2, pp. 210, 211. [Windsor and Halifax, Xova Scotia. Exceedingly abundant in fields. Xotes on appearance.] 1897. Nemobius fasciatus vittatus Zabriskie, Jour. X. Y. Microsc. Soc, XIII, pp. 1, 5, PI. 62, fig. 14. [Construction of musical rasps.] 1897. Nemobius vittatus Blatchley, Ins. in Gen. and Orth. Ind. in Particular, p. 23. [Indiana.] 1897. Nemobius fasciatus Blatchley, Ins. in Gen. and Orth. Ind. in Particular, p. 23. [Indiana.] 1897. Nemobius fasciatus Harvey and Knight, Psyche, VIII, p. 77. [Jack- man, Maine.] 1897. Nemobius fasciatus Ball, Proc. Iowa Acad. Sci., IV, p. 236. [Iowa, in fields.] 1898. Nemobius fasciatus form vittatus Lugger, Orth. Minn., pp. 262, 263, fig. 170. [Minnesota.] 1898. Nemobius fasciatus Lugger, Orth. Minn., pp. 261, 262. [Minnesota.] 1898. Nemobius fasciatus Lochhead, Ann. Rept. Ent. Soc Ont., XXVIII, p. 42, figs. 29, 30. [Studies.] 1898. Nemobius vittatus Lochhead, Ann. Rept. Ent. Soc. Ont., XXVIII, p. 42. [Studies.] "1899. Nemobius fasciatus vittatus Blatchley, Gleanings, p. 227, fig. 56." 1900. Nemobius fasciatus Xeedham, Occ Mem. Chicago Ent. Soc, I, p. 24. 1900. Nemobius fasciatus Blatchley, Psyche, IX, pp. 51, 52. [Indianapolis, Fort Wayne and other localities in northern Indiana.] 27 408 PROCEEDINGS OF THE ACADEMY OF [June, 1900. Nemobius fasciatus vittatus Blatchley, Psyche, IX, p. 52. [Indiana, abundant everywhere.] 1900. Xemobius fasciatus Fogg, Proc. jManchester Inst. Arts and Sci., I, p. 46. [Manchester, New Hampshu-e.] 1900. Nemobius fasciatus Scudder, Psyche, IX, p. 104. [Common every- where in New England.] 1900. Nemobius fasciatus Smith, Ins. of New Jersey, p. 164. [Staten Island, N. Y.; New Brunswick, N. J.] 1901. Nemobius fasciatus Pettit, Mich. St. Agr. Exp. Sta., Bull. 186, p. 39. [Au Train Falls, Mich.] 1902. Nemobius fasciatus Slosson, Ent. News, XIII, p. 8. [Summit of Mount Washington, N. H.] 1902. Nemobius fasciatus Fyles, 32d Ann. Kept. Ent. Soc. Ont., 1901, p. 92. [Quebec, Quebec. Common.] 1902. Nemobius maculatus E. M. Walker Cnot of Blatchley, 1900), 32d Ann. Rept. Ent. Soc. Ont., 1901, p. 109. [Tobermory, Ont.] 1903. Nemobius fasciatus Caudell, Proc. U. S. Nat. Mus., XXVI, pp. 808, 809. (In part.) [Fort Collins, Colo.] 1903. Nemobius utahensis Caudell, Proc. U. S. Nat. Mus., XXVI, p. 809. [Sedalia and Montevista, Colo.] 1903. Nemobius fasciatus Blatchley, Orth. of Indiana, pp. 420, 423. [Brach- ypterous from Terre Haute and all Indiana; macropterous from Round Lake in Whitley County, Indianapohs and Fort Wayne, Ind.] 1903. Nemobius canus Blatchley, Orth. of Indiana, pp. 420, 423, 424. [Sparingly in southern Indiana; Crawford County, Ind.] 1904. Nemobius fasciatus Mead, Dept. Zool. Ent. Ohio St. Univ., No. 19, p. 112. [Cedar Point, Ohio.] 1904. Nemobius fasciatus E. M. Walker, Can. Ent., XXXVI, pp. 182, 183. [Niagara Falls, Point Pelee, Arner, Chatham, Sarnia, Goderich, Southamp- ton, Bruce Peninsula, Owen Sound, Hamilton, Toronto, Lake Simcoe, Severn River, Lake Muskoka, Algonquin Park, North Bay and Stony Ijake in Peterboro County, Ont.] 1904. Nemobius canus E. M. Walker, Can. Ent., XXXVI, pp. 182, 184. [Arner, Ont.] 1904. Nemobius maculatus E. M. Walker (not of Blatchley, 1900), Can. Ent., XXXVI, pp. 182, 185. [Tobermory, Ont.] 1904. Nemobius fasciatus Rehn, Ent. News, XV, p. 269. [Pequaming, mainland opposite Pequaquawaming Point and Baraga County, Michigan. Great majority brachypterous.] 1904. Nemobius fasciatus Rehn, Ent. News, XV, p. 331. [Medford and Atsion, N. J.] 1904. Nemobius carolinus Rehn (not of Scudder, 1876), Ent. News,. XV, p. 331. [Near West Creek and Atsion, N. J.] 1905. Nemobius fasciatus Isely, Publ. Kan. Acad. Sci., p. 248. [Hiawatha, Atchison, Fairview, Clearwater, Sedgwick and Wichita, Kan.] 1905. Nemobius fasciatus Forbes, 111. St. Ent. 23d Rept., p. 214, figs. 225, 226. [Urbana, 111.] 1905. Nemobius fasciatus form vittatus Kellogg, Am. Ins., p. 159, fig. 225. [Popular notes.] 1906. Nemobius fasciatus Hart, 111. St. Lab. Nat. Hist. Descr. Syn. Ins. Coll., II, Orth., p. 89. [Illinois.] 1906. Nemobius fasciatus vittatus Hart, lU. St. Lab. Nat. Hist. Descr. Syn. Ins. Coll., II, Orth., p. 89. [lUinois.] 1906. Nemobius canus Hart, lU. St. Lab. Nat. Hist. Descr. Syn. Ins. Coll., II, Orth., p. 89. [Illinois.] 1906. Nemobius fasciatus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1906, p. 418. ' [Mammoth Hot Springs and Old Faithful Geyser, Yellow- stone National Park, Wyo.; Salt Lake City, Utah; St. Louis, Mo.] 1913.] NATURAL SCIENCES OF PHILADELPHIA. 409 1907. Nemobius fasciatus vittatus Hart, Bull. 111. St. Lab. Nat. Hist., VII, No. VII, pp. 235, 262. [Devils Neck, Moline Sand Hill and yicmity, 111.] ' 1907.' Nemobius fa sciahis Tucker, Kan. Univ. Sci. Bull., IV, No. 2, p. 75. [Douglas County, Kan.] 1907. Nemobius fasciatus var. vittatus Tucker, Kan. Univ. Sci. Bull., IV, No. 2, p. 75. [Douglas County, Kan.] . 1908. Nemobius fasciatus form vittatus Washburn, Press Bull. 32, Univ. Minn. Agr. Exp. Sta. [Eagle Bend, Minnesota. Devours eggs of Melano- plus [bi]vittatus.] 1908. Nemobius fasciatus Paxson, Ent. News, XIX, p. 328. [Devon, Pennsylvania. Numerous.] -■ ■ -ni -i 1909. Nemobius utahensis Rehn and Hebard, Proc. Acad. A at. Sci. Phila., 1909, p. 173. [Albuquerque, N. Mex.] 1909. Nemobius fasciatus E. M. Walker, Can. Ent., XLI, pp. 144, 211. [Bear Island and elsewhere in Temagami District, Ont.] 1910. Nemobius canus AUard, Proc. Ent. Soc. W^ash., XII, p. 41. [ihomp- son's Mills, Ga.] 1910. Nemobius fasciatus Hebard, Ent. News, XXI, p. 184. [New Haven, Conn. Common.] -to 1910. Nemobius fasciatus Rehn in Smith, Ann. Kept. N. J. State Mus. 1909, p. 191. [Throughout New Jersey, most common in pine barrens.] 1910 N[eynobius\ vittatus BeutenmiiUer insert in Rehn in Smith, Ann. Rept. N. J. State Mus. 1909, p. 191. [More northern records.] 1910. N[e7nobius] canus Rehn in Smith, Ann. Rept. N. J. State Mus. 1909, p. 192. [Sumner and Whitings, N. J.] 1910. N[emobius] macuMus Rehn in Smith (not of Blatchley, 1900), Ann. Rept. N. J. State Mus. 1909, p. 192. [Mount Pleasant, N J.] 1910. Nemobius fasciatus var. vittatus Allard, Ent. News, XXI, pp. 352, 355. [Oxford, Mass. Exceedingly common in fields.] 1910. Nemobius palustris Allard (not of Blatchley, 1900), Ent. News, XXI, pp. 352, 355. [Oxford, Mass. Cold damp places beneath loaves.] 1911. Nemobius fasciatus (vittatus) Allard, Ent. News, XXII, pp. 28, 32, 33, 37. [Oxford, Mass.] 1911. Nemobius palustris Allard (not of Blatchley, 1900), Ent. News, XXII, p. 37. [Misidentification first made in 1910.] ■ -r,. -, 1911. Nemobius fasciatus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1910, pp. 645, 646. [Sulphur Springs and Mount Pisgah, N. C; Bay- ville, Vir.] 1911 Nemobius maculatus Rehn and Hebard (not of Blatchley, 1900), Proc. Acad. Nat. Sci. Phila., 1910, p. 647. (In part.) [Sulphur Springs, N. C.] 1911. Nemobius fasciatus Hancock, Nature Sketches, p. 302, figs. [Lake- side, Berrien County, Mich. Attracted to hght.] 1911 N[emobius] fasciatus W^alden, Bull. 16, State Conn. State Geol. Nat. Hist. Surv., pp. 151, 152. [Throughout Connecticut. Very common, rarely macropterous.] , ^ . , -r^ . tvt or>i ta/t 1911. Nemobius fasciatus Sherman and Brimley, Ent. News, p. 391. [Moun- tains of North Carolina.] 1911. Nemobius fasciatus Shull, :\Iichigan Geol. and Biol. Surv., Publ. 4, Biol. Ser. 2, p. 229. [Huron County, Mich.] 1912. Nemobius canus Washburn, Jour. Econ. Ent., V, No. 2, p. 11 < . [Fergus 1912. Nemobius fasciatus Washburn, Jour. Econ. Ent., V, No. 2, p. 117. [Fergus Falls, Minn.] The present species finds its nearest relatives in .V. maculatus and N. griseus. From macidatus, typical fasciatus may be separated by its larger size, more uniform general coloration, striped occiput, 410 PROCEEDINGS OF THE ACADEMY OF [June, longer and less decidedly truncate tegmina in both sexes and in the female by the teeth of the dorsal margin of the apex of the ovipositor, which in fasciatus are rather prominent but not very sharp, while in maculatus these teeth are as prominent and verj' sharp. The ovi- positor in typical fasciatus is also longer and not so rigidly straight. From griseus the present species may be readily distinguished by its more robust proportions in even the smallest race, A'', fasciatus abortivus, the different general coloration, and also in characters of the ovipositor which in griseus are much as in maculatus. In fasciatus the lower face is never darker than the interocular portion of the same, while in griseus the lower face is strikinglj' darker than the other portions of the head. Certain individuals of this plastic species approach maculatus closely in general appearance, and those before us from Tobermory, Ont., Mount Pleasant, N. J., and Sulphur Springs, N. C, recorded, respectively, by E. M. Walker, Rehn, and Rehn and Hebard as that species, do indeed bear it a close resemblance. There are a number of other specimens in the present series likewise differing from typical fasciatus in being small, highly colored and more or less tawny, from numerous localities extending from New Jersey to North Carolina. No specimens in this series, however, have the peculiar color pattern of maculatus, nor the compact struc- ture and tegminal outline of that species. From the form here discussed to typical fasciatus, every gradation may be found in the material before us. The series of specimens from Thompson's Mills, Ga., recorded by Allard as N. canus bear a resemblance to the aberrant individuals discussed above, but are considerably larger and still more highly colored as described in the color notes on the following page. These specimens in consequence have a general fasces very different from that of typical fasciatus. Type: 9 ; Pennsylvania. (M. Acrelius.) [De Geer Collection.] We here describe a female from Philadelphia, Pa., taken August 22, 1898, as this city was probably the exact locality at which the type was captured. Size large for the genus, form compact; head rather large, full and rounded, about as wide as the pronotum. Maxillary palpi with penultimate joint about half as long as terminal joint, the latter expanding very gently distad, gently obliquely truncate. Eyes broad-ovate, moderately protruding. Pronotum with length con- 1913.] NATURAL SCIENCES OF PHILADELPHIA. 411 tained about one and four-tenths times in greatest (caudal) dorsal width, narrowing slightly in the cephalic portion. Tegmina nearly as long as the caudal femora, apex of same dorsal in position, distal margin of dorsal field rotundato-rectangulate, longitudinal veins rather conspicuous, cross-veinlets faint. Wings very long, twice as long as tegmina. Supra-anal plate very short and strongly transverse, sharply and suddenly depressed mesad, the caudal margin almost straight but slightly produced mesad, separated by a pronounced transverse fold from the supra-anal plate, which plate is shield-shaped. Cerci long, evenly tapering, thickly covered with hairs. Ovipositor very long, longer than caudal femora, rigid, with a scarcely perceptible arcuation, apex of same very narrowly sublanceolate enlarged with that portion formed by the dorsal valves armed, the upper margin dentate, these teeth regular, heavy, sharply cut, but with their immediate apices blunt. Subgenital plate scoop-shaped, rectangulate-emarginate mesad with Fig. 3. — Nemobius fasciatus. Ovipositor. (Greatly magnified.) the margins broadly rounded.-^ Caudal femora with greatest (meso-cephalic) width contained about three times in length. A male bearing the same data as the female here described affords the additional characters given below. Size very slightly smaller, proportions much as in female. The tegmina are translucent and when in repose the dorsal fields are hemi-elliptical in outline. Subgenital plate scoop-shaped, narrowing evenly but considerably caudad. The proximo-internal spine of the caudal tibia specialized as described under Morphological Notes in the generic discussion of the present paper. The brachypterous form of the present species differs in having the apex of the female tegmina at the humeral angle, the distal margin of the dorsal field roundly obhque, arcuato-truncate, while the sutural margin passes into the distal margin without angulation. 2^ In the present species the shape of the subgenital plate of the female varies from the present type to one similar to that of maculatus. 412 PROCEEDINGS OF THE ACADEMY OF [June, Measurements {in millimeters). Philadelphia, Pa. Specimens here described.^^ ^* 9 cf 9 cf Length of body 11.5 10. 9.5 10.6 Length of pronotum 2.3 2. 2.4 2.1 Caudal width of pronotum 3. 2.8 3. 3. Length of tegmina 7.4 7. 4.1 6.1 Length of wings 15 . 14 . Length of caudal femur 7.8 7.3 8. 7.6 Greatest width of caudal femur 2.7 2.4 2.7 2.7 Length of ovipositor 9.4 8.4 Oxford, Mass." MacNab's Id., N. S.^s 9 c? 9 cT Length of body 8. 8. 9. 7.2 Length of pronotum 1.8 1.8 1.7 1.8 Caudal width of pronotum 2.1 2.3 2.6 2.3 Length of tegmina 3.8 4.9 3.7 4.4 Length of wings Length of caudal femur 6. 5.7 6.6 5.7 Greatest width of caudal femur .1.9 1.8 2.1 2. Length of ovipositor 6.8 7. Specimens from Aweme, Man., show characters intermediate between A^. fasciatus abortivus and A", fasciatus. The upper dotted line includes all of the specimens of A^. fasciatus abortivus. The lower dotted line separates the majority of specimens of N. fasciatus socius (on the left) from the majority of specimens of A^. fasciatus (on the right). The diagonal line indicates the squares in which the length of the ovipositor is equal to that of the caudal femur. From the table on page 413 the relative measurements of the ovipositor and caudal femur of fasciatus and its geographic races are shown to be of use as a character, though exceedingly variable. Typical fasciatus has the ovipositor usually considerably 25 These specimens are examples of the largest macropterous form of the present species, from which form the type was unquestionably described as De Geer's figure shows. 26 These specimens are among the largest of the series of brachypterous specimens which we have before us. " These are among the smallest of the series of specimens which we have before us from the New England States. 2s The specimens from Nova Scotia are typical of the species over the extreme northeastern portion of its range. 1913. NATURAL SCIENCES OF PHILADELPHIA. 413 s. sz ^^ ^6 -TS 6 62 6^ 66 ^& Length ol 7- 7-^ Ov,p 7'}- 7C> V 0" 76 8 8Z 0. 8^ 56 8 6 9 9& 94^ f6 s^ ^.^ t^ \ ' 1 1 b / \ ! 1 1 Si, ^^v^ k B r 1" 1/ 1 1 S8 r\ B BBBB c / 6 \ c BH- ^A F / ' cz c \ s>. -,, D ^ ' 1 c; i T 7 i,^ ■ \\ ! ^6.6 Sz-r \ k E-H. ! H-H- \ 1 j z-rz ^ JK-K F JV G Gj.pa e i ^ 7 "e c TZ 5Z- zz ^^ F-GH H-J-a-iL GGC' 0- 1 1 H-0. j iNN-r s "^ svz- s n n-Hfis- iH-io " 1 5vr ki litis- H N NO- o-o- I VXXtT; p.Q. HIK 1- « 8 p S.S. Z \ "■^^^ K ^ l-o- H-0- a sx- T K-n-K w ...... G NO- ^8Z UYY \ — \ 3 56 X \ ^ 88 X \ w 9. Y X w VJ-X \ Fig. 4.- -Rclative length of ovipositor and caudal femur in Nemohius fasciatus and its races. The letters indicate the following localities: Nemobius fasciatus abortivus Caudell. A. Calgary, Alberta.' C. Aweme, Manitoba. B. Moose Jaw, Saskatchewan. D. Portal, North Dakota. Nemobius fasciatus (De Geer) . E. MacNab's Island, Xova Scotia. F. Pequaming, Michigan. G. Duluth, Minnesota. H. Oxford, Massachusetts. I. Marion, Mass. J. Pine Bluffs, Wyoming. K. Lincoln, Nebraska. L. La Junta, Colorado. M. St. Louis, Missouri. N. Castle Rock, Pennsylvania. O. Tinicum Island, Pa. P. Sulphur Springs, North Carolina. Q. Mount Pisgah, N. C. R. Thompson's JVIills, Georgia. Nemobius fasciatus socius Scudder. S. Raleigh, North Carolina. Y. Brunswick, Ga. T. Fayetteville, N. C. Z. Thomasville, Ga. U. Dallas, Texas. a. Pablo Beach, Florida. V. Galveston, Tex. b. Lakeland, Fla. W. Yemassee, South Carolina. c. Tampa, Fla. X. HomervUle, Georgia. 414 PROCEEDINGS OF THE ACADEMY OF [June, longer than the caudal femur and seldom under seven millimeters in length. The southern geographic race, fasciatus socius, has the ovipositor as short as or shorter than the caudal femur with scarcely an exception, while the northern prairie race, fasciatus abortivus, is distinguished from fasciatus by the usually shorter and differently shaped ovipositor and almost invariably shorter caudal femur. The letters indicating the distribution of fasciatus socius are S to c, while those of fasciatus abortivus are A to D. Color Notes. — The specimens here described are typical in coloration of the majority of specimens of the species found about Philadelphia. General color of head and pronotum clove brown shading to very dark mummy brown on the abdomen, limbs, and exposed portions of the wings. Head with occiput very obscurely striped with four longitudinal lines which are very slightly lighter than the rest of the occiput, eyes very dark mummy brown. Maxillary palpi mummy brown, the terminal segment darker. Tegmina of male translucent mummy brown, in the almost transparent portions shading to burnt umber, discoidal vein ivory white, this marking being so narrow as to be inconspicuous; of female prouts brown, the longitudinal veins Vandyke brown and the proximal portion of the intermediate channel Vandyke brown. The postocular portion of the gense and ventral margin of the lateral lobes of the pronotum are yellowish, these ye,llowish markings very obscure. Ovipositor very dark Vandyke brown. A few individuals from the same region are to be found of lighter coloration and in these the color pattern of the species is much more pronounced. In such the dorsal portion of the head, the eyes, and dorsum of the pronotum are prouts brown, the occipital stripes are distinct, while the interantennal protuberance is pale burnt umber shading to russet on the mouth parts. The last joint of the maxillary palpi is russet in these specimens for the proximal third, shading in the remaining portion to very dark brown. The upper portion of the lateral lobes of the pronotum is very dark brown, while the ventral margin of the same is prouts brown. The limbs and ventral surface of the abdomen are russet. This russet shade is frequently found to extend to the dorsal surface of the abdomen in such specimens of light coloration, when this is not the case that portion of the abdomen is clove brown. Interesting differences in coloration of series of the present species are found over its entire range of distribution, the more important of which are here considered. A series of large pale individuals from 1913.] NATURAL SCIENCES OF PHILADELPHIA. 415 Dallas, Tex., is before us, upon which Scudder based his N. canus; these specimens belong to the race fasciatus socius, while specimens from places in the region where fasciatus and fasciatus socius appar- ently intergrade, Raleigh, N. C, and Crawford County, Ind., are of the same light coloration but somewhat more slender. Specimens oi fasciatus proper from Long Island, N. Y., and Falls Church, Va., are equally pale, being russet in general coloration, but none are as robust as the individuals from Dallas, Tex. In all of these specimens as well as in a somewhat darker but very brilliantly colored series from Thompson's Mills, Ga., the males have the coloration of the discoidal vein more pronounced, while the area between this and the free veins of the lateral field is seal brown proximad and of that coloration to the end of the tegmen between the discoidal and medi- astine veins. It is interesting to note that in such pale specimens of the present species as well as in those of very dark coloration the longitudinal stripes of the occiput are absent, while these stripes become more and more pronounced between the extremes of light and dark coloration until in the absolute intermediates-^ they are usually well defined. Very dark individuals of fasciatus proper are to be found in almost every series, but this is much more pronounced in individuals from the more northern points of the species' distribution. In the material before us this is very noticeable in a series from Oxford, Mass., which are for the greater part small in size and very dark. In these speci- mens the light portion of the lateral lobes is much reduced and ob- scured while in the darkest specimens of the series it is absent, the yellowish coloration of the discoidal vein is scarcely perceptible to the naked eye. The few lighter specimens in this series, however, have the occipital stripes more pronounced than in any other speci- mens of the species before us. Every conceivable intergradation between the extremes of the species is to be found in the present series not only in coloration, but also in size and in length of tegmina, wings, caudal femur, and ovi- positor. Distribution.— Typicsd fasciatus is to be found from Prince Edward Island across the Dominion of Canada westward to the prairie region in Manitoba, where its place is occupied by fasciatus abortivus. South of this countrj^ that geographic race gives place again to 29 The intermediates here referred to are usually few in number, as by far the majority of individuals of the species approach the dark extremes more or less closely. 416 PROCEEDINGS OF THE ACADEMY OF fJune, fasciatus proper in northern North Dakota and Montana, and true fasciatus is to be found as far west as the Yellowstone National Park in Wyoming, to the base of the Rockies in Colorado, and a few specimens have been taken at Spring Lake, Utah. Its southern limits are marked by the fall line in the southeastern United States, and west of the Appalachians it is found as far south as Tennessee, Arkansas, Oklahoma, and, without doubt, the Panhandle of Texas, to Roswell and Albuquerque, N. Mex. South of this as far west as the dry country of Texas, fasciatus is supplanted by the geographic race, fasciatus socius. Biological N'otes. — The present species is one of the most abundant of the North American Gryllidse and is often found in great numbers over the greater part of its range. It flourishes not only in grassy uplands, but also in meadows and in the heavy grasses about marshes and swamps. It is also frequent along the borders of woodlands and is to be met with in open forests where the ground is somewhat grassy. It is particularly noticeable in areas of lush grasses about damp places in the northernmost portions of its range, where, as has been found in almost all insect life of the north, as numerous species disappear, those remaining and having a more northerly distribution are found in enormous numbers. The present species does not flourish under arid conditions, but its distribution is often extended into the arid west in many places where river bottoms and other watered spots afford a green vegetation well suited to this insect. The majority of specimens seen of fasciatus are brachypterous, al- though at times macropterous individuals appear in countless num- bers, and are then conspicuous, particularly about the lights at night. The writer has seen one flight which occurred in the fall of 1911 at Chestnut Hill, Phila., when, shortly after nightfall, the ground under the arc lights in that portion of Philadelphia swarmed with these crickets, although usually few if any specimens are to be found at that place attracted to light. The song of the insect is shrill and has been described as "tiiii- tiiii-tiiii" or " ti-ti-ti-ti-ti-ti-ti-ti " by Allard, and as "creeeeeee" or " creee-creee-creee-creee " by Rehn and Hebard. Piers states that "the stridulation is produced by lifting the wing covers about forty- five degrees above the abdomen and then shuffling them together, producing a sound resembling the word plee-e-e-e plee-e-e-e plee-e-e-e or cree-e-e-e." Morphological Notes. — An interesting variation in size is found in the present species. It appears that the insect decreases in size 1913.] NATURAL SCIENCES OF PHILADELPHIA. 417 northward from the centre of its distribution, but that occasional series of unusually small size are sometimes found in the central portion of its range. These smaller series would seem at first glance to belong to a different species, but close examination fails to disclose valid characters of any sort, which is also true of the occasional light colored specimens which have from time to time been referred to canus. Synonymy. — The synonymy of the present species is much involved owing to the fact that it is one of the oldest recognized species of North American Orthoptera as well as one of the most abundant and variable over the greater portion of its range. In 1775, Fabricius described Acheta hospes from America, this being a synonym based on the macropterous form oi fasciatus. Harris^°, in 1841, described the brach3^pterous form of the present species as Acheta vittata, which name since that time has been exten- sively used to designate the brachypterous form of the insect. Scudder, in 1862, most unfortunately recorded macropterous specimens of the present species as N(emobius) exiguus, confusing Say's Acheta exigua with fasciatus, which former species belongs to the genus Anaxipha. This mistake was repeated by Glover in 1872, and the introduction of that name in the nomenclature of the genus Nemohius resulted in the greatest confusion in the work of many subsequent authors. In 1896, Scudder described Nemohius utahensis, the type of which'''' cannot be distinguished from the brachypterous form of fasciatus, while since that time specimens of the present species have been referred by various authors to Nemohius utahensis, canu^-, maculatus, ■cubensis, palustris, and carolinusP Specimens Examined}^ — 641: 273 males, 353 females, and 15 nymphs. ^° In 1835 Harris included in his list of Massachusetts insects Say's manuscript name Acheta servilis based on the macropterous form of fasciatus, but, as there was no accompanying description, that name falls as a nomen nudum. ^1 We here select as single type a female specimen, taken at Spring Lake, Utah, in July, 1875, and now in the United States National Museum. ^2 See discussion of this name under the Synonymy of Nemohius fasciatus socius. ^^ The only other name probably applicable to the present species is Nemohius marginata of Murtfeldt, published in 1893 without description, hence a nomen nudum. ^' The following abbreviations are used to differentiate the specimens here recorded: Lg., large size; med., medium size; sm., small size; b., brachyp- terous; m., macropterous; pi., pale in coloration; dk., dark in coloration; br., brilliantly colored; maj., majority of specimens; v., very; n., nymph. 418 PROCEEDINGS OF THE ACADEMY OF [June,. Bothwell, Prince Edward Island, Aug. 24, 1912, (B. Long) 1 9 [A. N. S. P.].. Lg. b. Souris, P. E. I., Aug. 24, 1912, (B. Long) 2 9 [A. N. S. P. and Hebard Col- lection]. Lg. b. St. Andrews, P. E. I., Aug. 26, 1912, (B. Long) 1 9 [A. N. S. P.]. Lg. b. Bunbury, P. E. 1., Aug. 28, 1912, (B. Long) 1 9 [A. N. S. P.]. Lg. b. Charlottetown, P. E. I., Sept. 1, 1912, (B. Long) 2 cf , 2 9 [A. N. S. P. and Hebard Collection]. Med. b. Malpeque Bay, P. E. I., Aug. 29, 1912, (B. Long) 1 cf , 1 9 [Hebard Collec- tion]. Med. b. Cape Aylesbury, Malpeque Bay, P. E. L, Aug. 29, 1912, (B. Long) 2 9 [A. N. S. P.]. Med. b. MacNab's Island, Halifax, Nova Scotia, Sept. 9, 1903, (Perrin) 1 o^, 1 9 [Hebard Collection]. Med. b. Chateau Richer, Orit., Sept., 1894, (E. M.Walker) 1 9 [University, of Toronto]. Med. b. De Gras.si Point, Lake Simcoe, Ontario, Aug. 21, 13, 15, 1896, 1897, 1904, (E. M. Walker) 3 d' [University of Toronto]. Sm. high colored b., pair lg. b. ^ Isle d'Orleans, Ont., Aug. 24, 1904, (E. M. Walker) 1 cf [University of Toronto]. Sm. high colored b. Toronto, Ont., Oct. 8, 1893, (E. M. Walker) 1 d^, 1 9 [University of Toronto]. Sm. b. Tobermory, Ont., Aug. 24, 1901, (E. M. Walker) 1 c? 1 9 [University of Toronto]. Sm. high colored b. Southampton, Ont., Aug. 20, 1901, (E. M. Walker) 1 9 [Universitv of Toronto]. Sm. pi. b. Arner, Ont., Aug. 9, 1901, (E. M. Walker) 2 9 ]University of Toronto]. Both lg., 1 m. Mount Washington, New Hampshire, 1 9 [Scudder Collection]. White Mountains, N. H., 1 d", 3 9 [Scudder Collection]. Franconia, N. H., 3 cf , 3 9 [Scudder Collection]. Greylock Mt., Massachusetts, Aug., 1899, (Knab) 1 d", 1 9 [U. S. N. M.]. Med. dk. b. Boston, Mass., (Scudder) 1 cf [Scudder Collection]. South Natick, Mass., Oct. 26, 1905, (Morse) 1 d" [Blatchley Collection). Med., br. b. Cape Cod, Mass., Sept., (Scudder) 1 9 [Scudder Collection]. Oxford, Mass., Oct., 1909, (AUard) 4 c?, 12 9 [U. S. N. M.]. Maj. dk., d d' sm. 9 9 med., all b. Marion, Mass., Aug. 30, 1905, (H.) 1 d', 6 9 . Med. somewhat pi. b. New Haven, Connecticut, Oct., 1909, (H.) 2 d", 2 9 . dd sm. 9 9 med., all b. Glenville, Conn., Aug. 11, 1910, 1 c^, 1 9 , 2 9 n. [Am. Mus. N. H.]. Med. b. North Elba, New York, Oct., (Davis) 1 d" [Davis Collection]. Sm. b. Black Mtn., Lake George, N. Y., Aug. 21, 22, 23, 30, 1893, (Zabriskie) 2 .^^ 4 9 , 1 9 n. [Am. Mus. N. H.]. Med. and sm. dk., but rather highly colored, b. Clyde, N. Y., (Wood) 1 9 [U. S. N. M.]. Lg. b. Goshen, N. Y., Sept. 7, 1910, 2 d^, 3 9 [Am. Mus. N. H.]. d & sm. dk. 9 9 med., all b. De Brue, N. Y., Sept. 14, 1910, (Davis) 1 d', 3 9 [Davis Collection], d" sm. 9 9 med., all b. Suffern, N. Y., Sept. 17, 1910, 2 c^, 1 9 [Am. Mus. N. H.]. Med. dk. b. Nyack, N. Y., 1886, (Zabriskie) 2 9 [Am. Mus. N. H.]. Med. b.; 1 9 [U. S. N. M.]. Lg. b. Mosholu, N. Y., 3 d^, 3 9 [Am. Mus. N. H.]. All med, 2 9 m.: Sept. 4, 6, Oct. 18, 1902, 1 d^, 3 9 [Hebard Collection]. Med. b. New York, N. Y., (Angus) 2 cT, 9 9 [Am. Mus. N. H.]. Med. and lg. b. Montauk, Long Island, N. Y., Sept. 23, 1910, (Davis) 2 d', 1 9 [Davis Col- lection]. 1 d med., others lg., all b. Calverton, L. I., Sept. 29, 1910, (Davis) 1 d [Davis Collection]. Sm. b. Yaphank, L. I., July, 1909, Sept. 5, 1910, (Davis) 1 d^, 2 9 [Davis Collection]. Lg. b. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 419 ^ Rockaway, L. I., 1 c^ [Am. Mus N. H^j. Med„m. ' Sti4n Id'^N.'V.^'Augi'S-'i'e; 1905. (Davis) 2 d^, 6 9 [Davis CoUection]. "^io^hftilinl-Feknsyly^^^^^ 13, 1906, (B. Long) 1 cT, 1 9 [A. X. S. P.]. %^'e. Jamison City, Pai, Sept. .5, 1909, (Davis) 1 cT [Davis Collection]. ^^cintral, Pa., Sept. 4, 1909, (Davis) 1 9 [Davis Collection] Med. b. Greentown, Pa., Sept. 16, 1906, (B. Long 1 9 [A. N. S. P. . Lg. b. Shady Nook, Pa., Aug. 6-7, 1908, (Stone) 1 9 [A. N- S^P.]. Lg. b. Scotrun, Pa. Aug. 11, 1906, (B. Long) 1 9 [A X. S. P.]. Lg. m. Tobyhanna, Pa., Sept. 1, 1903, (H.) 1 d^. Med. b. Stroudsburg, Pa., Sept. 1, 1903, (H.) 1 cf ■ Med b Lehigh Gap, Pa., Oct. 5, 1903, (G. Greene) 1 9 [A. N . S. P.]^ Lg. b. Marysville, Pa., Oct. 6, 6 c^, 8 9 [Pa. St. Dept. Zool.] Med. b. Rociville, Pa., July 29, 1 c^ n., 1 9 n. [Pa St. Dept. ZooL] Harrisburg, Pa., Aug. 16, 19, .30 2 ^, 2 9 [Pa. St Dept. Zool.]. Med. b. Enola, Pa., Oct. 13, 8 cf , 5 9 [Pa St. Dept. Zool.]. Med. b. CamphiU, Cumberland Co., Pa., Oct. 19 1 c^ [Pa. St Dept. Zool.]. Med. b. Philadelphia, Pa., Aug. 22, 1898, (R.) 1 c^, 1 9; Aug. 1, 1901, (R.) 1 9. ^ cSnwells, Pa., Oct., 1906, (R. and H.) 2 o^ 1 9 . 1 c? sm., pair v. lg. rather ^^^Chesmut Hill, Pa., July 8, 1911, (H.) 3 c?, 3 9 . Lg. b. Mount Airv, Pa., Sept. 18, 1903, (H.) 1 cf • Lg. m. r^ „ ,• ^ Overbrook, Pa., Sept. 8, 1912, (G. Greene) 1 c?, 1 9 [Greene Collection]. ^^Pink Hill, Delaware Co., Pa., July 9, 1908, (R. and H.) 3 9 n pL Swirthmore Pa Sept. 13, 1906, (Cresson Jr.) 1 9 A. A. S. P.). Lg. b. CasTle Rock, Delaware Co., Pa.', Sept. 19, 1909 (R. and H.) 3 o^, 6 9 ; Sept. 9 IQT^ (G Greene) 1 d" [A. N. S. P.]. Med. b. ''CHili:CheXW,pi.,Sept.l9>08,(R^^a^^^^^^ Lg b Tinicum Id., Pa., Oct. 20, 1901, (G. Greene) 1 c? [A. N. fe. P.]; Sept. 9, 19, 1904, 1908, (R. and H.) 12 cf, 23 9. Lg., all b. except 1 m. 9 . Cameron Co., Pa., Oct., 190.5, (Fowler) 1 9 l^-^JJj^ ^ed. b Diamond Valley, Huntingdon Co Pa Sept^ 10, 190.o (R.) 8 o^ 9 9^ Lg^b- Chestnut Ridge, Westmoreland Co., Pa., (Brugger) 1 d^, 1 9 [A. N. S. P.]. ^^Palisades, New Jersey, Aug. 25, (Davis) 1 c? [p^yis Collection]. V. sm. b. Newark, N. J., Sept. 11, 1880, (Rockwood) 1 9 [U- S. N. MJ^. Lg. b. Bear Swamp, Ramapo Hills, N. J., Oct. 8, 1909, (Davis) 1 cT [Davis Collec- ^'"sindy Hook, N. J., (Davis) 1 9 [Davis Collection] Lg b. New Brunswick, N. J., Oct. 6, 11, 2 d^, 9 9 [Am Mus N. H.]^ Med. b. Jamesburg, N. J., Sept. 27, (Davis) 1 9 [Davis Collection^. Sm. b Trenton, N. J., Aug. 6, 1911, (Davis) 1 c^, 1 9 n. [Davis CoUection]. d^ sm. ^' Whifesville, N. J., Sept. 22, 1907, (R.) 1 o^, 19. Med. rather pi b. Lakehurst, N. J., Aug. 17, 18, Sept. 3, 4, 5, 14, 15, Oct. 3 6, 12, 18, 31, 190/ (Davis) 15 d^, 5 9 [Davis Collection], c^ c^ v. sm. and br., 9 9 med. only '"'^Medford, N. J., Sept. 7, 1902, (St^ne), 1 d^ tf Nf S- P-]- Lg- b- Riverton N. J., Sept. 11, 1904, (G. Greene) 1 cT [A- N- S. P.]. Lg. b. Sumner, N. J., Oct. 15, 1906, (B. Long) 1 d^, 1 9 [A. N. S. P.]. Sm. and med. ^'Atsion, N. J., Oct. 8, 1903, (H.) 2 c?, 1 9 . Med. b., 1 9 sm. br. Stafford's Forge, N. J., Sept. 16, 1905, (H.) 3 cT, 3 9 ; Aug. 18, 26, 31, 1907, OS 09 (R ) 3 d^, 1 9 • Rather sm. b., 2 d^ br. ^ .^ , r. l u Near West Cr;ek,N. J., Sept. 6, 1903, (R.) 1 d^ [A. N. S. P.]. Sm. br. b. ■ 420 PROCEEDINGS OF THE ACADEMY OF [June, Ocean View, N. J., Sept. 5, 1907, Aug. 11, 1908, (Fox) 1 c^, 2 9 [A. X. S. P.]. Med. b., cf br. Anglesea, N. J., Sept., 1 9 [Hebard Collection]. Med. dk. b. Cape May Co., N. J., Aug., 1910, (Davis) 1 9 [Davis Collection]. Lg. b. Mount Pleasant, N. J., Sept. 7, 1908, (Fox) 1 9 [A. N. S. P.]. Sm. br.-b. Cold Spring, N. J., Aug. 31, 1910, (Davis) 2 9 [Davis Collection]. Lg. b. Delaware, 1 9 [A. N. S. P.]. Lg. b. Chestertown, Maryland, Aug. 3, 10, 13, 20, 23, 1899, 1901, 04, (Vanatta) 7 cf, 7 9 [A. N. S. P.]. 1 9 pi., all med. b. Beltsville, Md., Sept. 26, 1911, (Davis) 1 d' [Davis CoUection]. Med. br. b- Montgomery Co., Md., Sept. 2.5, 1911, (Davis) 1 d" [Davis Collection]. Med- br. b. Plummer's Island, Md., Sept. 2, Oct. 11, 1906, (Caudell) 3 cf , 2 9 [U. S. N. M.]. Pair lg. m., others b. the cf & sm. br. Hyattsville, Md., Sept. 17, 1911, (Davis) 3 cf , 1 9 [Davis Collection]. Med. dk. b. Aurora, West Virginia, Aug., (Hirchman) 1 cf, 1 9 [U. S. N. M.]. Sm. br. b., 9 pi. Washington, D. C, 1 cf [Hebard Collection]. Sm. b.; Sept. 20, 1911, (Davis) 1 cf [Davis Collection]. Med. dk. m.; Oct. 6, 1880, 3 9 [U. S. N. M.]; Sept. 9, Oct. 16, 1909, Nov. 8, 13, 1911, 12, (Caudell) 1 cf , 7 9 [U. S. N. M.]. Lg. med. and sm. b. Fairfax Co., Virginia, Sept. 21, 1911, (Davis) 3 a" [Davis Collection]. Sm. br. b. Falls Church, Va., Sept. 4, Oct. 9, 1906, (Caudell) 9 cf , 8 9 [U. S. N. M.]. Med. and sm. br. b. Rosslyn, Va., Oct. 14, (Caudell) 1 cf [U. S. N. M.]. Med. br. b. Bayville, Va., July 19, 1908 (R.) 1 9 . Lg. b. Jefferson, North Carolina, Aug., 1907, (Sherman) 1 9 [Coll. N. C. Dept. Agr.]. Med. b. Cranberry, N. C, Oct. 2, 1907, (Sherman) 1 9 [Coll. N. C. Dept. Agr.]. Med. b. Grandfather Mtn., N. C, Sept. 11, 1908, (Metcalf) 3 9 [Coll. N. C. Dept. Agr.]. Med. b. Blowing Rock, N. C, Sept., 9, 10, 1908, (Metcalf) 3 cf , 2 9 [Coll. N. C. Dept. Agr.]. cf cf sm., 1 br. b.; 9 9 med. b. Black Mts., N. C, Aug. 16-31, Sept., 1900, (BeutenmuUer) 2 cf , 1 9 [Am. Mus. N. H.]. Med. br. b. Asheville, N. C, Sept. 24, 1904, (H.) 2 cf , 5 9 . Med. br. b. Mt. Pisgah, N. C, Oct. 1, 1904, (H.) 5 cf , 2 9 . Med. rather br., but 1 b. Balsam, N. C, Sept. 15-18, 1908, (Metcalf) 1 cf , 2 9 [Coll. N. C. Dept. Agr.]. Med. b. Waynesville, N. C, Sept. 19, 1908, (Metcalf) 1 d^, 2 9 [CoU. N. C. Dept. Agr.]. Med. b. Atlanta, Georgia, July 29, 1910, 2 d" [Collection State of Ga.]. Med. m. Thompson's MiUs, Ga., Oct., 1909, (AUard) 10 d^, 1 9 [U. S. N. M.]. Lg. v. br. b. Decatur, Alabama, (Shimek) 1 9 [Hebard Collection ex Bruner]. Med. m. Pequaming, Michigan, July 21, 28, 31, Aug. 1, 5, 8, 9, 30, 1903, 04, (H.) 8 (^, 6 9 . All sm. and dk. but one 9 pi. ; all but one pair b. La Salle Isle, Mich., Aug., 1899, (Blatchley) 1 d', 1 9 [Blatchley Collection.] Sm. dk. b. Duluth, Minnesota, Aug., 1906, (Stone) 3 cf , 17 9 [A. N. S. P.]. Med., 3 cf , 13 9 m. Beaver Dam, Wisconsin, Aug. 28, 1906, (W. E. Snyder) 3 d" [U. S. N. M.]. Med. dk. m. Sheridan, Indiana, Aug. 20, 1907, (Caudell) 1 9 [U. S. N. M.]. Lg. b. Buckeye Lake, Ohio, Sept. 28, 1912, 1 d" [Ohio State Univ. Collection]. Crawford County, Ind., Aug. 30, Sept. 4, Oct. 9, 1900, 1902, (Blatchley) 2 d". 3 9 [U. S. N. M. and Blatchley Collection]. Lg. very pi. b. Ogle County, Illinois, 1 9 [Scudder Collection]. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 421 Chicago, 111., Sept. 9, 1903, (H.) 1 d^, 1 o . Med. b. Moline, 111., Aug. 24, 26, (McNeill) 1 o^, 1 9 [Scudder Collection]. Urbana, 111., Oct. 1, 1904, (Knab) 2 cf , 1 ? [U. S. N. M.]. All b., pair med., one sm. Effingham, 111., Aug. 29, 1904, 1 d' n. [Hebard Collection]. Lg. pi. Dalla.s County, Iowa, Aug., (Allen) 1 d^ [Scudder Collection]. St. Louis, Mis.souri, Aug. 27, Sept. 4, 1904, (Heink; H.) 4 d", 9 9 [Hebard CoUection]. All med. b. 1 9 m.; Aug. 8, Oct. 22, 1875, 76, 5 9 [U. S. X. M.]. Lg. b. Nashville, Tennessee, (Shimek) 6 d", 1 9 [Hebard Collection]. Med. mod. pi. b. Chattanooga, Tenn., (Shimek) 4 d^ [Hebard Collection]. Med. mod. pi. b. Bismarck, North Dakota, Aug. 9, 188.5, 1 9 [Hebard Collection ex Bruner]. Med. mod. pi. b. Billings, Montana, July 28. 1909, (R. and H.) 1 d^, 2 9 n. o^ med. dk. b. Mammoth Hot Springs, Y. N. P., Wyoming, Aug. 5, 1904, (H.) 2 cf , 2 9 Med. dk. b. Upper Geyser Basin, Y. N. P., Wyo., Aug. 7, 1904, (H.) 1 d", 1 9 . Med. dk. b. Big Horn Mts., Wyo., Aug., 1894, (Bruner) 1 d' [Hebard Collection]. Med. dk. b. Pine Bluffs, Wyo., (Bruner) 2 d", 6 9 fHebard Collection]. Med. b. Glen, Nebraska, Aug., 190.3, (Bruner) i d" [Hebard Collection]. Med. dk. b. West Point, Nebr., Aug.-Oct., 1880-1901, 15 &, 21 9 [U. S. N. M., Hebard Collection]. All med., 1 d^, 5 9 m. North Platte, Nebr., July 28, 1910, (R. and H.) 1 d", 1 d' n., 1 9 n. d med. b. Sidney, Nebr., 1 9 [Hebard Collection]. Med. pi. b. Lincoln, Nebr., July 14-Sept. 3, 1889-1909, (Bruner), 4 o^, 13 9 [Hebard Collection ex Bruner]. All med. mod. pL, 2 d^, 10 9 m. Falls City, Nebr., Aug. 30, 1910, 1 o" [Davis Collection]. Med. dk. b. Fairview, Kansas, Aug., 1904, (Isely) 1 d", 2 9 [U. S. N. M.]. Lg., 19 m. Topeka, Kan., (Cragin) 1 d" [Hebard Collection ex Bruner]. Lg. b. W^ichita, Kan., July 23, 1904, (Lselv) 1 9 [U. S. N. M.]. Lg. h. Dodge City, Kan., Sept. 13, 1909, (H.) 1 d', 2 9 . Lg. b. Barber Co., Kan., (Cragin) 1 9 [Hebard Collection ex Bruner]. Lg. b. Ft. Collins, Colorado, Aug. 10, 1901, (Caudell) 1 d", 1 9 [U. S. N. M.]. Med. b Boulder, Colo., Oct. 7, 20, (Cockerell) 2 9 [U. S. N. M.]. 1 large and 1 med. b. La Junta, Colo., Sept. 11, 1909, (R. and H.) 2 9 . Med. m. Montevista, Colo., Aug. 13, 1901, (Caudell) 1 d [U. S. N. M.]. Med. b. Salt Lake City, Utah, Aug. 13, 1904, (H.) 1 d. Med. dk. b. Spring Lake, Utah, July, 1875, 1 d", 2 9 , 1 d" n. Type, paratypes, N. utahensis Sc. [U. S. N. M., Hebard Collection ex Bruner]. Med. b. Albuquerque, New Mexico, Sept. 14, 1907, (H.) 1 9 . Med b. Roswell, N. AL, Aug., 1902, (Cockerell) 2 9 [A. N. S. P.]. Lg. m. Nemobius fasciatus socius Scudder. 1862. N[etnohius\ fasciatus Scudder, Bost. Jour. Nat. Hist., VII p 431 (In part.) [Charleston, S. C] 1869. Nemobius fasciatus Walker, Cat. Dermap. Saltat. Br. Mus., I, p. 56 (In part.) [St. Johns Bluff, Fla.] 1874. Nemobius fasciatus Scudder, Hitch. Rept. Geol. N. H., I, p. 365. (In part.) [Louisiana; Texas.] 1877. Nemobius socius Scudder, Proc. Bost. Soc. Nat. Hist., XIX, p. 37. (Original de.scription.) [Georgia.] 1894. Nemobius fasciatus Ashmead, Ins. Life, VII, p. 25. [Utica, Miss.] 1896. Nemobius canus Scudder, Jour. N. Y. Ent. Soc, IV, pp. 100, 103. (Description.) [Dallas, Tex., and Texas.] 1896. Nemobius socius Scudder, Jour. N. Y. Ent. Soc, IV, pp. 100, 103. (In part.) [Sanford and Charlotte Harbor, Fla.; New Orleans, La.; Gulf coast of Texas.] 422 PROCEEDINGS OF THE ACADEMY OF [June, 1896. Nemohius aterrimus Scudder, Jour. N. Y. Ent. 8oc., IV, pp. 100, 105. (In part.) (Description of cf.) [Jacksonville, Fla.] 1896. Nemohius canus Scudder, Psyche, VII, p. 4.32. (New key.) 1896. Nemohius socius Scudder, Psyche, VII, p. 432. (New key.) 1897. Nemohius hastatus Saussure, Biol. Cent. Amer., Orth., I, pp. 221, 222. (Description.) [Mexico City at 8,190 ft.] 1903. Nemohius fasciatus Caudell, Proc. U. S. Nat. Mus., XXVI, pp. 808, 809. (In part.) [Victoria, Tex. Large numbers at light.] 1905. Nemohius maculatus Rehn and Hebard (not of Blatchley, 1900), Proc. Acad. Nat. Sci. Phila., 1904, p. 799. [Thomasville, Ga.] 1905. Nemohius socius Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1904, p. 800. [Thomasville, Ga.] 1905. Nemohius socius Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1905, p. 50. [Tampa, Fla.] 1906. Nemohius fasciatus vittatus Hart, Ent. News, XVII, p. 159. [Brazos County, Tex.] 1906. Nemohius socius Hart, Ent. News, XVII, p. 159. [College Station, Brazos River Bottoms and Galveston, Tex.] 1907. Nemohius socius Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1907, p. 316. [Pablo Beach, Gainesville, Bronson and Cedar Keys, Fla.] 1908. [Nemohius] fasciatus Brimley, Ent. News, XIX, p. 21. [Raleigh, N. C. Open fields.] 1908. [Nemohius] canus Brimley, Ent. News, XIX, p. 21. [Raleigh, N. C. Pine woods.] 1909. Nemohius fasciatus Tucker, Ent. News, XX, p. 297. [Piano, Tex.] 1911. Nemohius fasciatus socius Rehn and Hebard, Proc. Acad. Nat. Sci. PhUa., 1910, p. 596. [Bainbridge, Ga.] 1911. Nemohius fasciatus socius Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1910, p. 647. [Raleigh and New Berne, N. C] 1911. Nemohius canus Sherman and Brimley, Ent. News, XXII, p. 391. [Raleigh, N. C] 1911. Nemohius fasciatus socius Sherman and Brimlev, Ent. News, XXII, p. 391. [Raleigh, N. C] 1912. Nemohius fasciatus socius Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1912, p. 273. [Miami, Fla.] This geographic race can be distinguished from typical fasciatus solely by the proportions of the caudal femur and ovipositor; over its entire range there is an increase in the robustness of the caudal femur and in the female a decrease in the length of the ovipositor, which, when compared in length with the caudal femur, is found to be as short as or shorter than that member. So few exceptions are to be found to this that, in spite of the close affinity of these southern individuals to fasciatus in all other respects, they should certainly be considered to belong to a definite geographic race. Type: 9 ; Georgia. [Scudder Collection.] Description of Type. — Agrees perfectly with typical fasciatus, except that the caudal femora are proportionately longer and heavier and the ovipositor shorter, in consequence the length of the caudal femur is equal to that of the ovipositor. Males from the same State as the type do not differ from males of fasciatus except in their more robust caudal femora, and so great is the size variation in the species that, with no other than this differen- 1913. NATURAL SCIENCES OF PHILADELPHIA. 423 tial character, scattered males unaccompanied by females of this southern geographic race are scarcely separable from those of true fasciatus. Measurements {in millimeters) . Thomasville, Ga. Average of a typical series. Length of body 9 . 1 (8 . -10 . ) Length of pronotum 1.8 (1.7- 2. ) Caudal width of pronotum 2.5 (2.1- 2.7) Length of tegmen 5.1 (4.2- 6.1) Length of wing Length of caudal femur 6.5 (5.8- 7. ) Greatest width of caudal femur 2.4 (2. - 2.7) Length of ovipositor Thomasville, Ga, Average of a typical series, 9 9 9.6 (9.3-10. ) 2.1 (1.9- 2.3) 2.7 (2.3- 3. ) 4.6 (3.9- 6. ) 7.3 (7. - 7.8) 2.6 (2.3- 2.9) 6.4 (5.2- 7.1) Georgia. s. Type. Length of body : 9 . 5 ( 8 . 8-10 , Length of pronotum. 1.9 ( 1.8- 2 . Caudal width of pro- notum 2.6 ( 2.1- 3. Length of tegmen 6.2 ( 5.8- 6.7) Length of wing 13.8(12.8-15. ) 13.6(13.4-14. ) 9 9 9.7 ( 9.1-10. ) 1.9 ( 1.8- 2. ) 2.8 ( 2.4- 3.1) 6.3 ( 5.9- 6.9) 9 9.5 Length of caudal femur Greatest width of cau- dal femur Length of ovipositor 6.6 ( 6.3- 2.2 ( 2.1- 7. ) 7. ( 6.9- 7.2) 2.4) 2.5 ( 2.1- 2.7) . 6.5 ( 6. - 6.8) Dallas, Texas.^^ 6.25 Length of body 9 . 8 Length of pronotum 2 . 2 Caudal width of prono- tum 3.4 Length of tegmen 6 . 6 Length of wing Length of caudal femur Greatest width of caudal femur Length of ovipositor 9.8 2. 2.7 5.6 7 . 2.7 10.9 1.9 3. 6.4 14.8 7.3 2.6 9 10. 2.6 3.1 3.9 8^6 3.1 8.3 9 10.2 2.4 2.9 4.8 ...^...^ 2.8 7.8 ^= The brachypterous individuals from this locality are part of the type series of Scudder's Nemobius canus, while the macropterous specimen bears Scudder's label "N. socius." 424 PROCEEDINGS OF THE ACADEMY OF [June, Bronson, Bainbridge, Raleigh, Mexico City, Fla. Ga. N. C. Mex. cf 9 d' 9 9 Length of body 11.1 12. 7.9 7.6 7.7 Length of pronotum 2. 2.4 1.7 1.8 1.6 Caudal width of prono- tum 2.9 3.5 2.4 2.4 2.1 Length of tegmen 6.8 8.4 4.8 4.2 2.6 Length of wing 14.7 17.6 Length of caudal femur 7.9 8.9 6.3 6. 5.2 Greatest width of caudal femur 2.6 2.7 2. 2. 2.1 Length of ovipositor 8.9 5.4 5.2 The series from Thomasville, Ga., is typical oi fasciatus socius and shows the considerable variabihty in size found in a series of this geographic race from a single locaht}^ The specimens from Dallas, Tex., average larger than any series before us from east of the Appala- chians, but the male specimen from Bronson, Fla., and the female from Bainbridge, Ga., show that the largest individuals from the east considerably exceed in size those from Dallas, Tex. The majority of specimens before us from Raleigh, N. C, are of average size, but the series contains some of the smallest specimens of fasciatus socius before us, and the measurements of these are given above to show that extreme of the race. Color Notes. — Specimens from the south Atlantic and Gulf coasts which were taken in damp or marshy situations are without exception very dark brown in coloration. Those from the undergrowth of the pine woods in the south Atlantic States are frequently cinnamon or russet in general coloration, while some of the males taken under such conditions have the markings of typical fasciatus very conspicuous. Individuals taken at various places in the semi-dry interior of Texas are quite as pale as these, but are not so tawny and the males do not have the darker markings so well defined and conspicuous. As in fasciatus, the occipital bars are absent in all very light or very dark specimens while most conspicuous in those which are slightly lighter than the average. Distribution. — This geographic race is found over the southeastern United States, the northern limit of distribution being defined by the fall line. West of the Appalachians it is found from the Gulf of Mexico northward to Tennessee, Arkansas, and Oklahoma. These northern limits marking the line of intergradation into typical fasciatus. The most western localities at which fasciatus socius has 1913.] NATURAL SCIENCES OF PHILADELPHIA. 425 been taken are Victoria, Sarita, and Brownsville, Tex., and Mexico City. Biological Notes. — Though often found in large numbers, this geographic race is seldom met with in the myriads in which true fasciatus is so frequently found. In southern Georgia and along the Gulf coast the insect is to be found adult at all seasons except during the coldest portions of January, February, and ]March, while in southern Florida it is found mature throughout the entire year. The series before us indicates that more macropterous individuals are met with in this geographic race than in typical fasciatus. Morphological Notes. — The variability of the present species is nowhere more striking than in series of fasciatus socius from various localities. Very light individuals are to be found and others with heads or tegmina of unusual size and shape. The specimens from Dallas, Tex., upon which Scudder based N. canus, are very pale, though but little tinged with russet, and have abnormally large heads. There are many specimens before us which show the un- questionable intergradation from the various series to typical /ascmhis socius and also from one series to the other. Synonymy. — In 1896 Scudder described Nemohius canus from a series of six males and ten females of which we here select a male from Dallas, Tex. (Boll.) [Scudder Collection], as the type. We unhesitatingly place this species in the synonymy under fasciatiis socius, from which geographic race it can in no way be separated ; the specimens upon which it was based, including the type here selected, are large and rather pale individuals of fasciatus socius. In his original description Scudder states that it is possibly only a geographic race of fasciatus, remarkable for its cinereous aspect and the striped appearance of the female tegmina. The series before us show that the cinereous aspect is found in pale specimens of both fasciatus and fasciatus socius in varying degrees over their entire range, and the different appearance of the tegmina is solely due to the fact that in light specimens of the present species the dark markings are often conspicuous. In the same paper in which Scudder described A^ canus, he also described N . aterrimus. This is a most unfortunate result of careless- ness, for the unique male, which we here select as the type of aterri- mus, is a medium-sized, dark, brachypterous specimen of fasciatus socius, while the unique female belongs to N. cuhensis. A thoroughly brief and unsatisfactory description based on two specimens of dif- ferent species can hardly have been expected to do other than mislead when opportunity was lacking to examine the types. 426 PROCEEDINGS OF THE ACADEMY OF [JuHG, Saussure, in 1897, described Nemohius hastatus, basing that species on a single female from Mexico City.^^ Careful examination of this tjTJe proves it to be a synonym of the present geographic race of fasciatus. The specimen is of exceptionally small size, but Saussure's error was caused by his misconception of De Geer's fasciatus in the same paper, for the specimens which he there regards as that species belong in fact to the very different hrasilieyisis of Walker, and conse- quently he looked upon the specimen under consideration as new. Specimens Examined. — 274: 108 males, 157 females, and 9 nymphs. Raleigh, North Carolina,^^ July 8 to Dec. 7, 1904-08, (Sherman, Brimley, Wolgum, Bentley) 20 cf, 41 9 [N. C. Dept. Agr., U. S. N. M., Hebard Col- lection]. Nos. sm., maj. med., few Ig., many pi. med.; 1 cf Ig., 4 9 , m. New Berne, N. C, July 24, 1908, (R.) 1 d'. Med. b. Fayetteville, N. C, Sept. 9, 1911, (R. and H.) 6 cT, 9 9 . Med., 3 cf , 4 9 pL; aUb. Hamlet, N. C, late Oct., 1906, (Sherman) 3 cf , 5 9 [N. C. Dept. Agr.]. Med. and Ig. b. Lake Waccamaw, N. C, Sept. 8, 1911, (R. and H.) 1 d^, 2 9 . Med. b. Wilmington, N. C, Sept. 8, 1911, (R. and H.) 1 cf , 1 9 • Med. dk. b. Winter Park, N. C, Sept. 7, 1911, (R. and H.) 1 cf , 4 9 . c^ and 2 9 dk.; all med. b. Southport, N. C, Oct., 1906, (Sherman) 1 9 [N. C. Dept. Agr.]. Med. b. Smith Id., N. C, Oct., 1906, (Sherman) 1 d" [N. C. Dept. Agr.]. V. sm. b. N. end Sullivan Id., South Carolina, Sept. 5, 1911, (R. and H.) 1 d. Med. b. Yemassee, S. C, Sept. 4, 1911, (R. and H.) 6 d', 6 9,1 9 n. AU Ig.; 1 9 m. Tybee Id., Ga., Sept. 2, 1911, (H.) 1 d. Med. dk. b. Brunswick, Ga., Aug. 30, 1911, (H.) 1 c^, 3 9 . Lg. b. Cumberland, Id., Ga., Aug. 31, 1911, (R. and H.) 1 9 . V. Ig. m. Billy's Id., Okefenokee Swamp, Ga., July, 1912, (Bradley) 1 9 [Cornell Univ. Collection]. Lg. b. Homerville, Ga., Aug. 27, 1911, (R. and H.) 4 c^, 8 9 . Lg. b. Thomasville, Ga., May 21 to Dec. 11, 1903, (H; for H.) 6 d, 18 9 [Hebard CoUection]. Med.; some pi.; 1 c^ ; 10 9 m.: Mar. 18, 21, 1904, (H.) 4 n. Bainbridge, Ga., July 15-27, 1909, Sept. 2-7, 1910, (Bradley) 1 cf , 4 9 [Col- lection State of Ga.]. Pair med., others v. large; all m. Georgia, 1 9 Type. [Scudder Collection]. Med. b. Atlantic Beach, Florida, Aug. 24, 1911, (R. and H.) 2 cf , 1 9 . Lg. b. Pablo Beach, Fla., Aug. 11, 12, 1905, (R. and H.) 2 cT, 4 9 . Lg.; 2 9 m, Jacksonville, Fla., (Slosson) 1 cf [Scudder Collection] ; (Pridday) 1 cf. Type, A'', aterrimus Sc. [Hebard Collection ex Bruner]. Med. dk. b. Gamesville, Fla., Aug. IS, 1905, (R. and H.) 1 9 . Lg. b. Bronson, Fla., Aug. 16, 1905, (R. and H.) 1 d^. Lg. m. . Cedar Key, Fla., Aug. 17, 1905, (R. and H.) 1 d^, 1 9 . Med. b. Sanford, Fla., 1 d [Scudder Collection]. Orlando, Fla., Nov. 15, 1901, (Polk) 1 9 [U. S. N. M.]. Sm. dk. b. Lakeland. Fla., Nov. 8, 1911, (Davis) 5 d', 2 9 [Davis Collection and U. S. N. M.]. Med. b., 1 d m. Tampa, Fla., Jan. 16, 1904, (H.) 1 9,1 9 n. Sm. b.; 1 c?, 2 9 [Collection State of Ga.]. Med. dk. m. '^ This locality is wronglj'^ given with the original description in the Biologia as Ciudad in Durango. 3' This large series is of particular interest owing to the great amount of varia- tion shown not only in size, but also in color. As the locaUty would suggest, the present series contains many intermediates between fasciatus and fasciatus socius. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 427 Sarasota, Fla., Jan. 29, Mar. 1, 1911, (Blatchley) 1 d", 2 9 [Blatchley Collec- tion]. Med. b. Charlotte Harbor, Fla., 1 9 [Scudder Collection]. Fort Myers, Fla., Mar. 12, 1911, (Blatchley) 1 d^ [Blatchlev Collection]. Med. b. Miami, Fla., Mar. 28, 1910, (H.) 1 cf . Med. dk. m. Homestead, Fla., July 10, 12, 1912, (R. and H.) 1 cf . Sm. dk. b. New Orleans, Louisiana, Nov.-Dec, 1882, (Shufeldt) 1 cf [U. S. N. M.]. Med. b. De Kalb, Texas, Sept. 1, 1904, (C. R. Jones) 1 cf [U. S. N. M.]. Med. pi. m. Dallas, Tex., (Boll) 5 o", 7 9 , 2 — n.^s [Scudder Collection, Hebard Collection ex Bruner, U. S. N. M.]. Med. and Ig., pi.; 1 d" m. College Station, Tex., Dec. 27-29, 1905, (Hart) 5 d', 2 9 [111. State Lab. Nat. Hi.st.] Med. b. Beaumont, Tex., July 23, 1912, (H.) 10 d', 8 9. Med., 5 d', 4 9 m. (at light). Columbus, Tex., June 10, 1879, 1 9 [U. S. N. M.]. Med. pi. b. Galveston, Tex., July 19-21, 1912, (H.) 9 cf , 7 9 ; Jan. 3, 1906, (Hart) 1 9 [111. State Lab. Nat. Hist.]. Med. b. Virginia Point, Tex., July 21, 1912, (H.) 1 d^. Med. b. Webster, Tex., Julv 19, 1912, (H.) 1 9 . Med. b. Rosenberg, Tex., July 25-26, 1912, (H.) 19. Lg. b. Victoria, Tex.. June, 1902, (Caudell) 1 c?, 2 9 [U. S. N. M.]. Med. pi. m. Sarita, Tex., Dec. 5, 1911, (Hart) 1 9 [111. State Lab. Nat. HLst.]. Lg. dk. b. Brownsville, Tex., Julv 31-Aug. 5. 1912, (H.) 1 9 n.; (Townsend) 1 o". Med. m. Mexico City, Mexico, 8,190 feet, (Forrer) 1 9 . Type, N. hastatus Sauss. [Br. Mus.]. V. sm. dk. b. Nemobias fasciatus abortivus Caudell. 1904. Nemobius fasciatus var. abortivus Caudell, Can. Ent., XXXVI, p. 248. (Original description.) [Moose Jaw, Saskatchewan.] 1906. Nemobius fasciatus var. abortivus E. M. Walker, Can. Ent., XXXVIII, p. 59. [Common everywhere on prairies, Manitoba, Assiniboia (Sas- katchewan), Alberta.] 1908. Nemobius fasciatus abortivus Caudell. Proc. U. S. Nat. Mus., XXXIV, p. 81. [Calgary, Medicine Hat, Moose Jaw, Canada; Portal, N. Dak.] 1910. Nemobius fasciatus abortivus E. M. Walker, Can. Ent., XLII, p. 355. [Aweme, Elkhorn, Manitoba; Yellow Grass, Moosomin, Vonda, Sas- katchewan.] 1911. Nemobius fasciatus form abortivus Rehn and Hebard, Ent. News, XXII, p. 10. [Aweme, Manitoba.] 1911. Nemobius fasciatus abortivus E. M. Walker, Can. Ent., XLIII, p. 304. [Ft. William, Ont.] 1912. Nemobius fasciatus abortivus Caudell and Hebai'd, Proc. Acad. Nat. Sci. Phila., 1912, p. 168. (Single type fixation.) Individuals of the present geographic race of N. fas&iatus are found to differ from typical specimens of the species in their much smaller size, very dark coloration, extreme abbreviation of the tegmina, and, in the female, by differences in the ovipositor, the apex of which is fully as much enlarged but for a less di.stance than in fasciatus, being more obliquely subtruncate, and is provided with more pronounced teeth. 38 All belong to the type series of the synonymous Neynobius cayius Scudder, 1th the exception of the macropterous specimen, which is labelled .V. socius by with the exception of the macropterous Scudder. 428 PROCEEDINGS OF THE ACADExMY OF [June, Though resembhng N. maculatus closely in size and somewhat in form, individuals of this race may be separated by the absence of light markings on the head, immaculate and dark coloration, less sharply truncate tegmina in both sexes, more shiny appearance in the males, and different apex of the ovipositor in the females. Type: cf ;- Moose Jaw, Saskatchewan. In grass along borders of draw on prairie. August 24, 1903. (Caudell) [U. S. N. M. Collection.] Description of Type. — Size smallest of the races of fasciatus, similar to A'', maculatus in size, but form not quite so robust. Head, eyes, and pronotum as in fasciatus. Tegmina not as long as the caudal femur, translucent and rather abruptly rounded distad, though not as sharply truncate as in typical maculatus. Wings absent. Abdominal appendages and first proximal internal spine of caudal tibiae as in fasciatus. Limbs as in fasciatus. Allotypic 9 , here selected, bears the same data as the type. Description of Allotype. — Size larger, but proportions much as in the type. Tegmina much shorter than the caudal femur, broadly rounded distad, though not as much so as in typical maculatus, longitudinal veins rather conspicuous, cross veinlets faint. Wings absent. Ovipositor long, longer than caudal femur, rigid, with a scarcely perceptible arcuation, apex of same sublanceolate, enlarged for a shorter distance than in fasciatus and more obliquely subtrun- cate than in that species, with that portion formed by the dorsal valves armed, the upper margin dentate, these teeth rather irregular, heavy, and sharply cut. Fig. 5. — Xcmobius fasciatus ahortivus. Ovipositor. (Greatly magnified.) Measurements {in millimeters) . Allotype. Type. Average of paratypic series. 9 c^ 9 9 d'd' Length of body 9. 7.4 8.2(7.3-9.) 7.3(6.7-8.) Length of tegmina 3.5 4.8 3 . 6 (3 . 1-4 . 6) 4 . 9 (4 . 3-5 . 8) Length of caudal femur .5.4 5.1 5 . 8 (5 . 4-6 . 2) 5 . 2 (4 . 9-5 . 5) Greatest width of caudal femur 1.8 1.7 1.9(1.8-2.1) 1.8(1.7-1.9) Length of ovipositor 6.2 6.8(6.2-7.4) The above measurements show that when compared with the smallest individuals of fasciatus, the length of the caudal femur of 1913.] NATURAL SCIENCES OF PHILADELPHIA. 429 this race averages considerably less, while the length of the ovipositor is also less in the majority of cases. The small dark form of fasciatus fomid in eastern Ontario and Michigan, of which Walker speaks,^^ is, as he has stated, but a degenerate and does not, as Caudell has supposed,^"^ belong to the present geographic race. From this it may be separated by the general coloration, which although dark, is not as nearly black as in fasciatus abortivus, and the ovipositor which is exactly as in fasciatus. Intermediates between such individuals and fasciatus abortivus will undoubtedly be found frequently in the area of intergradation be- tween fasciatus and the present geographic race. The individuals from Aweme, Man., before us, do not show the characters which define the geographic race as distinctly as do the specimens from the type locality, all of the other specimens here treated are typical. Color Notes. — The males of the present geographic race appear to be shiny black to the naked eye, but under a Zeiss binocular are found to lie shiny dark clove brown in general coloration. The maxillary palpi are darker than in typical fasciatus. The yellow line of the discoidal vein of the males is extremely narrow, and the yellowish markings of the postocular portion of the genae and ventral margin of the lateral lobes are absent or very greatly reduced and obscured in both sexes. The tegmina of the females have the dorsal field sepia in general color with the longitudinal veins tinged with tawny and the median vein distinctly outlined in clove brown, which is also the color of the entire lateral field with the exception of the intermediate channel which is of the same color as the dorsal field. Several of the females of fasciatus abortivus before us have a general coloration which is somewhat less dark, and in these specimens the dorsal surface of the insect approaches sepia with a faint tawny cast and in one or two individuals the pale stripes of the occiput are faintly indicated. Distribution. — This geographic race is found over the prairie region of Manitoba, Saskatchewan, and Alberta in the Dominion of Canada, and in the adjacent portions of the United States. It has also been taken as far east as Fort William, in extreme western Ontario. Biological Notes. — Caudell has found this race plentiful in the grass along the borders of a draw on the prairie at IMoose Jaw, Sask., while Walker states that it is common everywhere on the prairies of Manitoba, Saskatchewan, and Alberta. The latter author 39 Can. Ent., XXXVI, p. 184. " Can. Ent., XXXVI, p. 248. 430 PROCEEDINGS OF THE ACADEMY OF [JunC, when at Fort William, Ont., noted that its song differed from that oifasciatus and described it as " a low continuous trill. " No macrop- terous specimens have been taken. Specimens Examined. — 48: 19 males, 29 females. Aweme, Manitoba, Aug. 8, 24, 25, 30, Sept. 22, Oct. 5, 6, 1904-09, (Criddle) 4 cf , 7 9 [Hebard, University of Toronto, and A. N. S. P. Collection]. Portal, North Dakota, Aug. 25, 26, 1906, (Caudell) 1 cf , 1 9 [U. S. N. M.]. Moose Jaw, Saskatchewan, Aug. 24, 1903, (Caudell) 9 cf, 14 9, Type, allo- type, paratypes; August, 1906, (Caudell) 4 c?, 4 9 [U. S. N. M., Blatchley and Hebard Collection]. Medicine Hat, Alberta, August, 1906, (Caudell) 2 9 [U. S. N. M.]. Calgary, Alta., August, 1906, (Caudell) 1 cf , 1 9 [U. S. N. M.]. Nemobius maculatus Blatchley. 1900. Nemobius maculatus Blatchley, Psyche, IX, pp. 52, 53. (Original description.) [Marion and Vigo Counties, Ind. In small numbers.] 1903. Nemobius maculatus Blatchley, Orth. of Indiana, pp. 420, 424, 425. [Marion and Vigo Counties, Ind. Low open woods, near and under logs.] 1903. Nemobius confusus Blatchley, Orth. of Indiana, pp. 421, 428, 429. (In part.) (Description of cf ■) [Tippecanoe Lake, Kosciusko County, Ind. Low damp woods.] 1904. Nemobius maculatus Mead, Dept. Zool. Ent. Ohio State Univ., No. 19, pp. 110, 112. [Franklin County, O.] 1906. Nemobius maculatus Hart, 111. State Lab. Nat. Hist., Descr. Syn. Ins. Coll., II, Orth., p. 89. [Illinois. About logs and dead wood in sparse woods and near streams.] 1908. [Nemobius] maculatus Brimley, Ent. News, XIX, p. 21. [Raleigh, N. C. Mixed woods.] 1911. Nemobius maculatus Sherman and Brimley, Ent. News, XXII, p. 391. [Raleigh and Jefferson, N. C] The long straight ovipositor of the present species having the dorsal margin of its apex obliquely subtruncate and armed with teeth places it at once in the first of the North American subgenera, Allonemobius, of which fasciatus is the type. From typical N. fasciatus it is possible to distinguish maculatus by its smaller size and more compact structure, the different markings on the head and maxillary palpi and more mottled general color pattern, the short tegmina which are more quadrate in the male and more nearly squarely truncate in the female, and the shorter more rigid ovipositor which is armed with very sharp teeth. From N. griseus it may be distinguished by all the characters which separate that species from all other species of the subgenus. A general superficial resemblance to N. amhitiosus is noticeable, but examination at once reveals the many differential characters of that aberrant species. Described from one male and nine females from two localities. Single type here designated: 9 ; Marion County, Indiana, in low open woods. October 6, 1895. (Blatchley.) [Blatchley Collection.] 1913. NATURAL SCIENCES OF PHILADELPHIA. 431 We here describe a female paratype bearing the same data as the type, excepting the date, which is September 10, 1895, in the United States National Museum. Size medium for the genus, form robust; head rather large, full and rounded, about as wide as the pronotum. Maxillary palpi of much the same form as in fasciatus, but with joints not quite as much produced as in that species. Eyes broad-ovate, moderately pro- truding. Pronotum, when compared with that of fasciatus, slightly less transverse, narrowing very slightly cephalad. Tegmina not half as long as caudal femur, apex at humeral angle broadly but distinctly obtuse- angulate, sutural margin passes into distal margin with a distinct angulation, longi- tudinal veins rather conspicuous, cross- veinlets very weak. Wings absent. Supra- anal plate and cerci as in fasciatus. Ovi- positor long, equal to the caudal femur in length, rigid, almost straight, apex similar to that of fasciatus, but armed Avith very sharp teeth.*^ Subgenital plate scoop- shaped, caudal margin arcuato-truncate, briefly cleft mesad.'*^ Caudal femora slightly more robust than in fasciatus. Fig. 6. — Nemobins macu- lalus. Dorsal view of female here described. (X3.) Fig. 7, Fig. 8. Figs. 7, 8. — Nemobius maculatus. Ovipositor; normal (Fig. 7) and distorted (Fig. 8). (Greatly magnified.) A topotypic male taken October 16, 1904, by Blatchley, and in the Blatchley Collection, affords the additional data given below. *i The series of specimens before us show that, when the ovipositor has received usage, these teeth become blunt, and in some cases have been worn down until their bases alone remain. ^ The degree of truncation and division of the subgenital plate is variable in this species as well as in fasciatus. 432 PROCEEDINGS OF THE ACADEMY OF [June, Size slightly smaller, proportions much as in the female. The tegmina are translucent, and when in repose the dorsal fields are quadrate in outline, with the caudal margin broadly arcuato-truncate. Subgenital plate as in fasciatus. Proximo-internal spine of caudal tibia as described under Morphological Notes in the generic discussion of the present paper. Measurements (in millimeters) . Marion County, Ind. Paratype. Average of series. 9 cf cf 9 9 Length of body 8.3 7 . 3 (6 . 5-8 . 4) 8.3(7.7-9. ) Length of pronotum 1.9 1.8 2. (1.9-2.2) Caudal width of pronotum 2.7 2 . 5 (2 . 3-2 . 7) 2.7(2.4-2.8) Length of tegmen 2.7 3.8 2 . 9 (2 . 5-3 . 1) Length of caudal femur 6.1 5.6(5.2-5.9) 6 . 5 (6 . 1-6 . 8) Greatest width of caudal femur 2.3 2 . 2 . 4 (2 . 2-2 . 6) Length of ovipositor 6 6.4 (5.9-6.8) Cabin John Run, Chestnut Hill, Md. Pa. Average of series. d' & 9 9 cf 9 Length of bodv 7.5(7.-8.) 8.4(7.6-9.1) 8.2 9. Length of pronotum 1.8(1.7-1.9) 1.9(1.8-2.1) 1.9 2. Caudal width of prono- tum 2 . 5 (2 . 4-2 . 7) 2 . 5 (2 . 4-2 . 7) 2.4 2.6 Length of tegmen 3.8(3.5-4.) 2.5(2.-3.1) 4.3 3.2 Length of caudal femur... 5 . 8 (5 . 6-6 . ) 6 . (5.4-6.4) 5.7 6.1 Greatest width of caudal femur 2.1(2.-2.2) 2.2(2.-2.6) 2.1 2.1 Leng-th of ovipositor 6. (5.-6.8) 5.8 As in other characters, there is very much less variation in the size and proportions of the present species than in fasciatus. In the entire series before us there are no specimens noticeably larger or smaller than those whose measurements are given above. Color Notes. — The specimens here described are typical in colora- tion of the great majority of specimens of the species before us. General color bistre with a tawny suffusion, the dorsum of the pronotum dotted, and the caudal limbs mottled with darker brown. Head with a narrow pale yellowish line about the eyes except on the infra-ocular portion of the gense, a medio-longitudinal line of the same color faintly indicated on the occiput. Maxillary palpi, of male with proximal portion of penultimate segment pale, of female with penultimate segment and proximal portion of terminal segment 1913.] NATURAL SCIENCES OF PHILADELPHIA. 433 russet."*^ Lateral lobes of pronotum broadly barred with clove brown, the immediate ventral margin of the general coloration of the insect. Tegmina with dorsal field of male translucent bistre, with discoidal vein narrowly outlined in ivory white; dorsal field of female bistre with a tawny suffusion, the median vein pale yellowish; lateral field in both sexes clove brown. Ovipositor very dark Vandyke brown. As has been noted, the males are usually darker than the females and in consequence have the abdomen wholly clove brown, while in the females this portion of the body is usually bistre, more or less suffused with tawny. In a few of the specimens of darkest coloration the light markings on the head are, as would be expected, considerably obscured. Distribution. — The present species is distributed over the Upper Austral Zone of the eastern United States and has been taken from Flatbush, L. I., N. Y., southward through New Jersey, Pennsylvania, Maryland, and Virginia, as far as Raleigh, N. C, and westward through Ohio and Indiana to Illinois. Biological Notes. — This is a secretive species which is almost always found among leaves and about logs in woods, particularly in damp situations. In such places colonies of considerable size are some- times to be found, but unless special effort is made to locate these, the little insects in most cases wholly escape the notice of the col- lector. This is one of the species of Nemobius in which the reduction of the tegmina has reached an advanced stage, and we are consequently not surprised to find no macropterous individuals in the series of specimens before us. Synonymy. — No synonyms of the present species have been erected. Specimens of the diminutive and peculiarly colored type of fasciatus discussed under that species have been referred by Walker on Scudder's identification, and bj^ Rehn and Hebard to the present species. Specimens Examined. — 81: 27 males, 53 females, and 1 nymph. Flatbush, Long Island, New York, Sept. 30, 1890, (Zabriskie) 1 9 [Am. Mus. Nat. Hist.] Normal. Staten Island, N. Y., Sept. 19, (Davis) 1 cf, 1 9 [Davis Collection]. Normal. ■»3 This difference of coloration is due to the fact that the female is lighter than the male, this is usually the case in the present species. The series before us indicates that, in maculatus as in fasciatus, the lightest portion of the maxillary palpi is the proximal portion of the penultimate segment. In pale specimens the light coloration extends from the apex of the segment which precedes the penultimate to the base of the terminal segment. 434 PROCEEDINGS OF THE ACADEMY OF [June> Camphill, Cumberland Co., Pennsylvania, Oct. 19, 1 tf [Pa. St. Sept. Zool.]. Normal. Chestnut Hill, Pa., Oct. 4, 1903, (H.) 2 cf, 4 9 . Few somewhat rufous. Cabin John Run, Maryland, Sept. 19, 1911, (Davis) 7 cf , 18 9 , 1 cT n. [Davis Collection]. Rather. Plummers Island, Md., Oct. 6, 10, 1906, 1909, (Caudell, Fisher, Barber) 2 d',. 6 9 [U. S. N. M.]. Normal and somewhat rufous. Washington, D. C, Sept. 20, 1911, (Davis) 1 d' [Davis Collection]; Oct.,. 1909, (Caudell) 1 9 [U. S. N. M.]. d normal, 9 verv rufous. Fairfax County, Virginia, Sept. 21, 1911, (Davis) 1 c^, 2 9 [Davis Collection]. Normal. Alexandria County, Va., Sept., 1911, (Davis) 1 cf, 10 9 [Davis Collection]. Rather dark. Cherrydale, Va., Oct. 9, 1908, (Caudell) 1 d^, 2 9 [U. S. N. M.]. Pale rufous. Dead Run, Va., Aug. 12, 1912, (Caudell) 1 d [U. S. N. M.]. Rather dark. Raleigh, North Carolina, Oct. 30, 1905, (Brimley) 1 cT, 2 9 [Brimley and: Hebard Collection]. Very pale, rufous. Tippecanoe Lake, Kosciusco County, Indiana, Aug. 26, 1902, (Blatchley) 2 cT. Part of type series of N. confusus. [Blatchley Collection]. Dark. Marion County, Ind., Sept. 10, 1895, (Blatchlev) 1 9 . Paratype [U. S. N. M.];: Oct. 16, 1904, (Blatchley) 3 c^, 4 9 [A. N. S. P., U. S. N. M., Hebard Collection]. 1 cf , 3 9 rather rufous. Vigo County, Ind., (Blatchley) 1 9 . Paratype [Hebard Collection]. Buckeye Lake, Ohio, Sept. 12, 1912, 1 d [Ohio State Univ.]. Sugar Grove, Ohio, Sept. 28, 1912, 1 cf [Ohio State Univ.]. Cincinnati, Ohio, Oct. 19, 1912, 1 d [Ohio State Univ.]. Nemobius griseus E. M. Walker. 1900. Nemobius cubensis Blatchley (not of Saussure, 1874), Psyche, IX, p. 54. [Terre Haute, Ind. Sandy canal.] 1903. Nemobius cubensis Blatchley (not of Saussure, 1874), Orth. of Indiana,, pp. 420, 425. (Material recorded in 1900.) 1904. Nemobius griseus E. M. Walker, Can. Ent., XXXVI, pp. 181, 182. (Original description.) [High Park at Toronto, Sarnia, and de Grassi Point on Lake Simcoe, Ontario. On sandy soil.] The present insect is an aberrant member of the subgenus Allo- nemobius, typical individuals of which may be distinguished from the other species by the proportionately longer ovipositor, which usually exceeds the length of the caudal femur by about one-quarter, the more grayish general coloration and the distinctive coloration and marking of the head which is deep shining piceous below the antennae, and grayish or brownish gray above, with two or three usually distinct dark narrow longitudinal stripes on the occiput. Described from twelve males and thirteen females from three localities. Single type here designated: 9 ; High Park, Toronto, Ontario. On sandy soil. September 8, 1902. (E. M. Walker.) [University of Toronto Fig. 9. — Nemobius Collection.] v?ew^of fe^rnale. Description of Type. — Size medium for the (X 3.) genus; form moderately slender; head rather 1913.] NATURAL SCIENCES OP PHILADELPHIA. 435 large, full and rounded, about as wide as the pronotum. Maxillary palpi much as in fasciatus in general form, but with joints not as much produced. Eyes not as prominent as in that species, somewhat more broadly ovate. Pronotum, when compared with that of fasciatus, slightly less transverse, narrowing very slightly cephalad. Tegmina more than half as long as caudal femora, apex at humeral angle nearly rectangulate and sharply rounded, sutural margin passes into distal margin with an appreciable angulation, longitudinal veins very conspicuous, cross-veinlets numerous but very faint. Wings absent. Ovipositor very long, exceeding the length of the caudal femur by about one-quarter, nearly straight, stout, apex of same of Fig. 10. Fig. 11. Figs. 10 and 11. — Nemobius griseus. Cephalic (Fig. 10) and dorsal (Fig. 11) aspect of color pattern of head. ( X 4.) the fasciatus type but slightly shorter and heavier, with dorsal margin armed with prominent, sharp, regularly spaced teeth. Allotypic male, here selected, bears the same data as the tj^pe excepting that it was taken August 16, 1902; it is also in the Univer- sity of Toronto Collection. Description of Allotype. Size considerably smaller; form more slender than the type. Tegmina are translucent and when in repose the dorsal fields have the sides subparallel with the caudal margin arcuato-truncate. Spines of caudal tibiae somewhat more slender than in fasciatus. Measurements {in millimeters) . Toronto, Ont. Type. Allotype. Paratypes. 9 cf 9 9 9 d' Length of body 8.2 7.3 8. 8.6 7.8 7.5 Length of pronotum 1.9 1.6 2.1 1.7 1.6 1.5 Caudal width of prono- - tum 2.5 2.1 2.4 2.3 2.2 2. Length of tegmina 4. 4. 3. 4.9 2.9 4.1 Length of wings 10.9 Length of caudal femur ... 6.9 5.2 6.8 6.3 5.8 5. ■Greatest width of caudal femur 2.3 1.7 2.1 2. 2. 1.7 Length of ovipo.sitor 8.9 8.3 8.2 8 436 ' PROCEEDINGS OF THE ACADEMY OF [June, de Grassi Point, Ont. Terre Craw- ■ ' ^ Haute, ford Co., Paratype. Ind. Ind. 9 & d" & d' Length of body 7.6 6.8 6.8 7. 8. Length of pronotum 1.6 1.4 1.4 1.6 1.8 Caudal width of pronotum. 2.1 2.1 1.9 2.2 2.5 Length of tegmma 2.9 4. 4. 4.2 4.9 Length of wings Length of caudal femur 5.7 5. 4.9 5.3 6. Greatest width of caudal femur 2. 1.8 1.7 1.9 2. Length of ovipositor 7.2 The measurements of all the specimens before us of the present species are given above, these indicate that there is considerable variation in the proportions of griseus, but in other respects the specimens are very similar. Color Notes. — The specimens we have examined are quite similar in coloration. General color, in pale specimens, hair brown; in dark specimens, clove brown washed with grayish. Head below the antennae deep shining piceous, above of the general coloration with two or sometimes three usually distinct, dark, narrow, longitudinal stripes on the occiput. Eyes wood brown. Maxillary palpi with Fig. 12. — Netnobius griseus. Ovipositor. (Greatly magnified.) penultimate segment the palest, terminal segment very dark. Dor- sum of pronotum, dorsal surface of abdomen and of caudal femora of the general coloration, excepting that the first segments of the abdomen, concealed beneath the tegmina, are shining black, while the exposed segments have each a small dark median spot. Lateral lobes of pronotum broadly banded with clove brown, the ventral margin narrowly marked with buff, which marking is, in the majority of specimens, a mere line. Tegmina translucent; male with dorsal field of the general coloration, the discoidal vein narrowly outlined in buff, lateral fields clove brown becoming pale toward the costal margin; female with dorsal field broccoli brown, in some specimens somewhat tinged with rufous, intermediate channel somewhat paler with a black line on the dorsal margin bordering the median vein, lateral field similar in coloration to the dorsal field with the exception of a dark area between the humeral and mediastine veins, which in 1913.] NATURAL SCIENCES OF PHILADELPHIA. 437 pale specimens is seal brown and in dark specimens black. Ventral surface of body, caudal femora and sometimes other limbs wood brown, more or less suffused with russet in the males, and all but the median portion obscured with dark brown in one female. Cephalic and median limbs and caudal tibiae clove brown maculate with a paler shade. Distribution. — This insect is known from the type localities in the central portion of eastern Ontario and from southwestern Indiana. Biological Notes. — The insect has been found only on sandy soil among scant vegetation. Dr. Walker tells us that its pale colors render it very inconspicuous against the sand. Thirty specimens of the present species have now been recorded, of which but one is macropterous. Synonymy. — No synonyms of the present species exist. Blatchley, however, was led to record specimens of this insect as iV. cubensis in 1900 and 1903, owing to Scudder's incorrect determination. Specimens Examined. — 13: 7 males, 6 females. De Grassi Point, Lake Simcoe, Ontario, Sept. 1.5, 1901, (E. M.Walker) 1 9. Paratype; Aug. 14, 1904, (E. M. Walker) 2 c?, 1 9 [University of Toronto and U. S. N. M.]. High Park, Toronto, Ont., Aug. 16, Sept. S, 1902, (E. M. Walker) 3 d', 3 9 . Type, Allotype, Paratypes. [University of Toronto and A. N. S. P.]. Terre Haute, Indiana, Oct. 9, 1893, (Blatchley) 2 cf [Blatchley Collection]. Crawford County, Ind., Sept. 4, 1902, (Blatchley) 1 & [Blatchley Collection]. Nemobius griseus funeralis Hart. 1900. Ncmohius funeralis Hart, Ent. News, XVII, p. 159. (Description.) [College Station, Tex.] The present interesting insect is very different from any of the other species found in Texas, but, although known from the unique type only, comparisons with the type and other specimens of Walker's N. griseus show without question that it is a geographic race of that species differing only in the darker coloration, more obscure color pattern and much shorter ovipositor. Material from the country which intervenes between the type locality and the range of typical griseus will doubtless show intermediates much as those found between N.fasciatus and its southern race N.fasciatus sociiis, although in the present race the differentiation appears to have reached a more advanced degree. Type: 9 ; College Station, Brazos County, Texas. December 26, 1905. (Charles A. Hart) [lUinois State Laboratory of Natural History Collection.] Description of Type. — Size and form similar to that of smaller individuals of N. griseus. Head, maxillary palpi, eyes, pronotum, 438 PROCEEDINGS OF THE ACADEMY OF [Juiie, and tegmina"** as in that species. Wings absent. Ovipositor^^ pre- cisely as in griseus, but very much shorter, little over three-quarters the length of the caudal femur. Measurements (in millimeters) . Type, 9. College Station, Tex. Length of body . 7.9 Length of pronotum 1 . 7 Caudal width of pronotum . 2 . Length of tegmina 2.7, 2.9 Length of caudal femur 5 . 6 Greatest width of caudal femur 1.8 Length of ovipositor 4 . ^^ Color Notes. — The type is much darker than the series of N. griseus before us, being in general coloration very dark clove brown (almost black) washed with grayish, but the distinctive markings of that insect are all present in this dark specimen although less prominent. The portion of the head below the antennse is deep shining piceous, exactly as in griseus, while the occipital stripes though faint are clearly discernible under a Zeiss binocular. Eyes clove brown and maxillary palpi of the same color, the distal portion of the third segment and the entire penultimate segment somewhat paler. Pronotum wholly of general coloration excepting in the cephalic portion which is somewhat paler, particularly so on the lateral lobes. Tegmina with dorsal field broccoli brown faintly tinged with rufous, intermediate channel of same coloration with the black line of the dorsal margin (often striking in griseus) very narrow; lateral fields black. Femora and ventral surface of body black; other portions of limbs bistre. Distribution. — The present insect is known only from College Station, in central southeastern Texas. Specimens Examined. — 1 : 1 female. College Station, Texas, Dec. 26, 1905, (Hart) 1 9 . Type N. funeralis Hart. (HI. State Lab. Nat. Hist.] b. 44 The right tegmen of the type is slightly shrivelled. ■*5 The ovipositor of the type has the dorsal and ventral valves considerably separated at their extremities as is so frequently found in .V. bruneri. ^^ Hart gives in the original description 3.5 mm. for this length, probably because he measured the length of the exposed ventral surface of the shaft. The measurements given throughout the present paper for this length are taken from the base of the ovipositor, within the subgenital plate, to the apex of the ovipositor. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 439 Nemobius ambitiosus Scudder. 1877. Nemobius ambitiosus Scudder, Proc. Bost. Soc. Nat. Hist., XIX, pp. 81, 82. (Original description.) [Fort Reed, Fla.] 1896. Nemobius ambitiosus Scudder, Jn. N. Y. Ent. Soc, IV, pp. 99, 104. [Fort Reed, Charlotte Harbor, Sandford, Indian River, and Jacksonville, Fla.] 1896. Nemobius ambitiosus Scudder, Psyche, VII, p. 432. [New key.] 1902. Nemobius ambitiosus Blatchley, A Nature Wooing, pp. 40, 223. [Ormond, Fla.] 1905. Nemobius ambitiosus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1904, p. 800. [Thomasville, Ga., Leon County, Fla. In pine straw.] 1905. Nemobius ambitiosus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1905, p. 50. [Miami, Tampa, Fla. In dead leaves.] 1907. Nemobius ambitiosus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1907, p. 317. [Pablo Reach, San Pablo, and Gainesville, Fla. Under- growth in pine woods and in palmetto scrub.] 1909. Nemobius ambitiosus Hebard, Ent. News, XX, p. 115. [Thomasville, Ga. Frequent in pine woods. December.] 1911. Nemobius ambitiosus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1910, p. 596. [Bainbridge, Ga.] 1911. Nemobius ambitiosus Allard, Ent. News, XXII, p. 156. [Thompson's Mills, Ga. One of the commonest and earliest species.] 1912. Nemobius ambitiosus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1912, p. 273. [Miami and Homestead, Fla. Undergrowth in pine woods.] This trim insect may be immediately distinguished from all other North American species of the genus by the very strilving marlvings of the head and the usually distinctly striped caudal femora. More- over, in the males, the evenness of the dorsal field of the tegmina, which is bounded by a pale narrow line not only laterad, but caudad as well, gives this sex a very clean-cut appearance, while the scarcely Figs. 13 and 14:.^Nemobius ambitiosus. Cephalic (Fig. 13) and dorsal (Fig. 14) aspect of color pattern of head. (X 4.) enlarged apical portion of the ovipositor in the opposite sex is dis- tinctive. The insect is a very aberrant member of the subgenus Allonemohius. Although a small amount of variation exists in size, proportions, and tone of general coloration, the peculiarly striking color pattern is constant in the present species. Described from a series of eleven specimens from a single locality. Single type here designated: 9 ; Fort Reed, Florida. April 20-22, 1876. (Comstock.) [Scudder Collection.] We here describe a female from Gainesville, Fla., taken August 16, 1905, in the undergrowth of the pine woods by Rehn and Hebard. 29 440 PROCEEDINGS OF THE ACADEMY OF [June, Size medium for the genus, form robust; head rather large and rounded, but considerably flattened in front. Maxillary palpi much as in N. griseus, but with the penultimate segment much more de- cidedly constricted in the proximal portion. Eyes broad-ovate, not at all protruding. Pronotum as in griseus. Tegmina less than half as long as caudal femora, apex at humeral angle very broadly and roundly obtuse-angulate, distal margin of dorsal field oblique, passing into the sutural margin arcuately without angulation, the intermediate channel not conspicuous and forming part of the dorsal field, longi- tudinal veins very heavy and straight, cross-veinlets numerous but very faint. Wings absent. Ovipositor slightly longer than the caudal femora,'*'^ rigidly straight, apex of same scarcely enlarged, dorsal margin of apex armed with an even series of heavy, sharp teeth. Subgenital plate scoop-shaped, shorter than in N. fasciatus, with caudal margin straight. Caudal femora with greatest width (meso-cephalic) contained less than three times in the length. Spines of caudal tibiae stiff, covered with very short hairs, margins very finely serrate; caudal metatarsus furnished on dorsal and ventral margins with unusually heavy bristles. Fig. 15. — Nemobius ambitiosus. Ovipositor. (Greatly magnified.) A male bearing the same data as the female here described furnishes the additional information given below. Size slightly smaller, form similar to female. The tegmina are translucent and shiny, with the dorsal field when in repose having the sides subparallel and the caudal margin broadly and very evenly arcuate. Subgenital plate similar to that of N. fasciatus. Measurements {in millimeters). Thompson's Mills, Ga. Averages of series. cfd^ 9 9 Length of body 7 . 2 (6 . 6-7 . 8) 7 . 5 (6 . 9-8 . ) Length of pronotum 1.6(1.5-1.7) 2 . (1.9-2.1) Caudal width of pronotum 2.1 (1 . 9-2 .3) 2 . 4 (2 . 3-2 . 5) Length of tegmina 4 . 4 (4 . 2-4 . 5) 2 . 9 (2 . 7-3 . 1) Length of caudal femur 5 . 6 (5 . 4-6 . ) 6 . (5.7-6. 3) Greatest width of caudal femur 2 . 2 (2 . 1-2 . 4) 2 . 3 (2 . 2-2 . 4) Length of ovipositor 5.2 (4 . 9-5 . 6) *^ Examination of the large series before us shows that the length of the ovi- positor is variable in the present species and the average measurements show that it is usually not as long as the caudal femora. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 441 Thomasville, Ga. Averages of series. cf cf 9 9 Length of body 6 . 8 (6 . 1-7 . 8) 7 . 1 (6 . 1-8 . 2) Length of pronotum 1.7(1.6-1.9) 1.8(1.7-2. ) Caudal width of pronotum 2 . 2 (2 . 1-2 . 4) 2 . 2 (2 . -2 . 4) Length of tegmina 4 . 2 (4 . -4 . 5) 2 . 8 (2 . 6-3 . 3) Length of caudal femur 5 . 4 (4 . 8-5 . 8) 5 . 6 (5 . 2-6 . ) Greatest width of caudal femur 2 . (1.8-2.3) 2.1 (1 . 8-2 . 4) Length of ovipositor 4.5 (3.9-4.8) Gainesville, Fla. Extremes of series. cf d^ 9 9 Length of body 5.9 8. 6. 7.4 Length of pronotum 1.2 1.7 1.6 1.8 Caudal width of pronotum 1.9 2.3 2 . 2.6 Length of tegmina 3.2 3.9 2.2 2.8 Length of caudal femur 4.8 6. 4.9 6.1 Greatest width of caudal femur 1.7 2.3 1.7 2.4 Length of ovipositor 4.2 6.4 Homestead, Fla. cf d' d^ 9 9 Length of body 6.3 6.1 6.5 7.7 7.6 Length of pronotum 1.6 1.7 1.8 1.8 2. Caudal width of pronotum . 2 . 2. 2.2 2.2 2.5 Length of tegmina 3.7 3.6 3.8 2.4 2.7 Length of caudal femur 5.6 5.2 5.5 5.9 5.8 Greatest width of caudal femur 2. 2. 2.1 2.2 2.4 Length of ovipositor 4.8 6.1 Although the variation in size and proportions is well demon- strated by the above measurements, we find the species to vary but little in its distinctive color pattern and tegminal structure. Over the distribution of ambitiosus there is no gradual increase or decrease in size, local conditions governing such variation ; this is shown by the extremes given for the series from Gainesville, Fla., which series averages rather large, but contains not only the largest, but also the smallest specimens before us. Color Notes. — The general coloration ranges from cinnamon to clove brown tinged with tawnj^, frequently more or less flecked with a darker shade and occasionally with grayish, which gives to certain females a rather' close superficial resemblance to N. maculatus. Both extremes are represented by numerous specimens in the series 442 PROCEEDINGS OF THE ACADEMY OF [June, before us, those of cinnamon coloration having in ahnost every case been taken in the undergrowth of the pine woods. The coloration of the specimens here described is as follows. Occi- put and vertex mars brown; face shining piceous, sharply delineated from the vertex by a paler edging of the latter and crossed by a very striking but narrow supra-ocellar band; post-ocular region pale russet. Maxillary palpi with proximal segments cinnamon, terminal segment dark, shading abruptly from cinnamon to clove brown in the proximal fifth. Pronotum mars brown with ventro-caudal angle of lateral lobes clove brown, the immediate margin at this point very pale. Dorsal surfaces of limbs russet, flecked with darker brown; external face of caudal femora, however, strikingly marked with two narrow longitudinal bands of clove brown tinged with tawny. Teg- mina of male shining piceous, discoidal vein cream color, which coloration is continued as a narrow distal border to both dorsal and lateral fields, thereby giving the insect a very trim appearance; of female shining piceous, the intermediate channel buffy. Dorsal surface of abdomen of male clove brown tinged with tawny; of female mars brown, that portion hidden by the tegmina piceous in both sexes. In both sexes the ventral surface of the body and limbs is cinnamon. A number of females before us have the entire dorsal fields of the tegmina of the same paler coloration as the intermediate channel and in such specimens this surface is usually flecked with darker brown. Some specimens have the lateral lobes of the pronotum unicolorous, dark or light brown, and the pale coloration of the margin of the ventro-caudal angle is often much reduced or entirely absent. In a very few of the palest colored specimens the striking markings of the external faces of the caudal tibiae are absent. The striking cephalic markings are always distinct and are an excellent specific character. Distrihution. — The present species is known to range from Florence, South Carolina, and Gwinnett County in northern Georgia, south- ward over that State and throughout the mainland of Florida. Biological Notes. — Allard states that the present species is the first to appear at Thompson's Mills in north Georgia, and describes its song as a very brief, high-pitched, and shrill "tiiiiiiii-tiiiiii-tiiiiiiiii- tiiiiiiii." He further remarks, ''It is one of the commonest species of Nemobius in this vicinity and begins to stridulate as soon as spring opens in March and April. In April, 1910, very cold periods of weather with considerable sleet and snow completely silenced these 1913.] NATURAL SCIENCES OF PHILADELPHIA. 443 hardy crickets. Notwithstanding this inclement weather, these crickets were always in active stridulation as soon as the days became warmer." The present author has often noticed the same hardiness of this species at Thomasville, Ga., during the winter months, and from there southward the insects are found adult throughout the year. It seems singular that a species showing such hardy habits is so limited in northward distribution. It is our opinion that no macropterous form of the present species exists. Speciinens Examined. — 161: 76 males, 73 females, and 12 nymphs. Florence, South Carolina, Sept. 6, 1911, (R. and H.) 1 d^, 1 9 . Thompson's Mills, Gwinnett Countv, Georgia, April 17, 1910, (AUard) 3 d' , 4 9, 2 c^ n., 1 ? n. [U. S. N. M.]. Jesup, Ga., December, (H.) 1 d"] Sept. 1, 1911, (R. and H.) .3 9. Spring Creek near Bainbridge, Ga., June 7-23, 1911, July, 1912, (Bradley) 2 9 [Cornell Univ.]. Thomasville, Ga., Feb., Mar., Apr., Oct., Nov., Dec, 1903, 1904, (H. and for H.) 16 cf , 8 9. Homerville, Ga., Aug. 27, 1911, (R. and H.) 4 d', 4 9 . Lot 328, 12th Distr., Ware Countv, N. edge Okefenokee Swamp, Ga., Aug. 28, 1911, (R. and H.) 2 o^, 2 9. Billy's Island, Okefenokee Swamp, Ga., June, 1912, (Bradley) 1 cf , 1 9 , 1 d" n. [Cornell Univ.]. Honey Island, Okefenokee Swamp, Ga., June, 1912, (Bradley) 1 9 [Cornell Univ.]. St. Simon's Island, Ga., Aug. 30, 1911, (R. and H.) 5 d", 6 9 . Cumberland Island, Ga., Aug. 31, 1911, (R. and H.) 6 o', 5 9 . Leon County, Georgia State Line, Florida, Spring of 1903, (H.) 1 d". Live Oak, Fla., Aug. 26, 1911, (R. and H.) 3 9 . Jacksonville, Fla., Nov., 188.5, (Ashmead) 2 d [Hebard Collection ex Bruner]; (Pridday) 1 9 [Hebard Collection ex Bruner]; Nov. 3, 5, 1911, (Davis) 3 d', 3 9 [Davis Collection]. Atlantic Beach, Fla., Aug. 24, 1911, (R. and H.) 1 9. Pablo Beach, Fla., Aug. 12, 190.5, (R. and H.) 1 9 n. San Pablo, Fla., Aug. 13, 190.5, (R. and H.) 1 9 . Ormond, Fla., Mar. 26, Apr. 9, 1899, (Blatchley) 2 d", 2 9 [Hebard Collection, A. N. S. P.]. Gainesville, Fla., Aug. 16, 1905, (R. and H.) 15 d', 14 9 . Indian River, Fla., (Priddav) 1 d" [Hebard Collection ex Bruner]. Lakeland, Fla., Nov. 8, 9, 10, 1911, (Davis) 1 c?, 4 9 [Davis Collection]. Tampa, Fla., Jan. 16, 17, 1904, (H.) 1 c?, 1 9. Sarasota, Fla., Feb. 16, 21, 22, 1911, (Blatchley) 3 c?, 3 9 [Blatchley Col- lection]. Punta Gorda, Fla., Nov. 12, 14, 1911, (Davis) 1 d", 1 9, 1 o' n. [Davis Col- lection, U. S. N. M.]. Miami, Fla.. Feb. 6, 7, 1904, Mar. 20, 28, 1910, (H.) 4 d^, 1 9 , 4 d^ n., 2 9 n. Homestead, Fla., Mar. 17-19, 1910, (H.) 2 d", 2 9 ; July 10-12, 1912, (R. and H.) 1 d. . Subgenus BRACHYNEMOBIUS n. subgen. The subgenus is monotypic. Type of subgenus — Nemohius panteli n. sp. Subgeneric Description. — Size large for genus. Disto-ventral spurs of caudal tibia very unequal in length. Proximo-internal spine of caudal tibia in male specialized as described under Morphological 444 PROCEEDINGS OF THE ACADEMY OF [June, Notes for the genus; other spines short and heavy, below concave, with margins of this sulcation minutely serrulate in both sexes, the disto-internal spine not specialized. Ovipositor moderately long, nearly rigidly straight ; apex with the margin of that portion formed by the dorsal valves straight and armed with serrulations, the portion formed by the ventral valves unarmed. The present subgenus finds its nearest relationship in the North American subgenera to Allonemohius, from which it differs in the shorter heavier spines of the caudal tibiae, the ovipositor which has the apex with that portion formed by the dorsal valves not obliquelj- subtruncate or armed with teeth and a more robust general appear- ance. Nemobius panteli n. sp. 1896. Nemobius mexicanus Scudder (not of Walker, 1869), Jour. N. Y. Ent. Soc, IV, p. 107. (In part.) [Mescico, Mex.] This species appears to be related more nearly to Nemobius fasciatus socius than to any of the other North American species of the genus. It differs distinctly from that species in the characters given in separating the present subgenus from the subgenus Allonemohius as well as in certain important characters of color pattern. A certain relationship is shown to Nemobius brasiliensis in the characters of the apex of the ovipositor, but in other respects these species differ very widely. Fig. 16. — Nemobius panteli. Ovipositor. (Greatly magnified.) Type: 9; Mescico, Mexico. (E. Palmer.) [Scudder Collection.] Description of Type. — Size large, form robust; head large, very full and rounded, about as wide as the pronotum. Maxillary palpi much as in N. fasciatus, and eyes and pronotal proportions likewise similar. Tegmina not as long as caudal femora, apex at humeral angle less broadly obtuse-angulate than in most species, sutural margin passes into distal margin with scarcely any angulation, longitudinal veins not heavy, cross-veinlets very faint. Wings absent. Ovipositor considerably shorter than the caudal femur, nearly rigidly straight, stout; apex with that portion formed by the dorsal valves straight and armed with serrulations. Spines of caudal tibiae distinctive, as given in description of subgenus. The allotype bears the same data as the type and is also in the Scudder Collection. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 445 Descnptio?i of Allotype. — Very similar to female. Tegmina similar to those of N. fasciatus. Wings absent. Proximo-internal spine of caudal tibia as in fasciatus. Spurs and spines of caudal tibiae distinctive, as given in description of subgenus. Measurements {in millimeters) . San Jose, Mescico, Mex. Costa Rica. Type 9. Allot j-pic cf. c? Length of body 9.2 8.4 7.5 Length of pronotum 1.9 1.9 1.9 Caudal width of pronotum 2.4 2.3 2.3 Length of tegmina 4 . 5.2 4.4 Length of caudal femur. 6 . 6 . 6 . Greatest width of caudal femur 2.3 2.3 2.1 Length of ovipositor 4.7 Color Notes. — General coloration of head, pronotum, tegmina, and abdomen clove brown; the dorso-caudal jDortion of the occiput is russet, this marking extending on the sides of the head as a narrow line which borders the caudal margin of the eyes, the remaining post-ocular portion of the gense being of the darker general colora- tion. In front of the paler marking of the occiput there is an indica- tion of four very narrow and faint longitudinal lines of this color and the dorsum of the pronotum is also minutely dotted with russet. In the female the intermediate channel of the tegmina is broccoli brown, in the male wood brown. The limbs are bistre in the female, drab in the male. Ovipositor dark burnt umber. The specimen from Costa Rica was taken when it had recently reached the adult condition ; this specimen shows scarcely any cephalic markings. Distribution. — The present species is known only from ^Mescico, Mex., and San Jose, Costa Rica. Synonymy. — It is surprising that Scudder, in 1896, considered his specimens of this aberrant species to be the same as the very different Nemohius cuhensis mormonius, which insect he then erroneously believed to be Nemohius mexicanus Walker. Specimens Examined. — 13: 6 males and 7 females. Mescico, Mexico (near), (E. Palmer) 5 cf, 7 9. Type, Allotype, Paratypes. [Scudder Collection.] San Jose, Costa Rica (border of river Maria Aguilar), June, 1905. (P. BioUey) 1 cf [A. N. S. P.]. Subgenus ARGIZALA Walker. The subgenus is monotypic. Type of subgenus — Nemohius hrasiliensis [Argizala hrasiliensis] (Walker). 446 PROCEEDINGS OF THE ACADEMY OF [June, Suhgeneric Description. — Size very large for the genus. Pronotum with width almost twice the length, much more transverse than in the other North American subgenera. Disto-ventral spurs of caudal tibia very unequal in length. Proximal-internal spine of caudal tibia in male specialized as described under Morphological Notes for the genus; other spines very long, below concave, with margins of this sulcation minutely serrulate in both sexes, the disto-internal spine not specialized. Ovipositor long, nearly rigidly straight; apex with the margin of that portion armed by the dorsal valves straight and armed with serrulations, the portion formed by the ventral valves unarmed. The glossiness of the only known North American species of this subgenus is very striking. The present subgenus finds its nearest relationship in the North American subgenera to Allonemobius and Brachynemobius. In form it is perhaps somewhat nearer the former, while the shape and armament of the apex of the ovipositor is similar to that found in the latter subgenus. Nemobius brasiliensis (Walker). 1869. Argizala brasiliensis Walker, Cat. Dermap. Saltat. Br. Mus., I, p. 61. (Original description.) [Santarem, Brazil, and Brazil.] 1877. Nemobius brasiliensis Saussure, Melang. Orth., II, pp. 241, 255, 256. [Brazil.] 1884. Nemobius fasciatus Bolivar (not Gryllus fasciatus De Geer, 1773), Viaje al Pacifico., Neur. y Ort., p. 107. [Huasco, Peru.] 1895. Nemobius longipennis Bruner (not of Saussure, 1874), Bull. Lab. Nat. Hist. Univ. Iowa, III, Pt. 3, p. 67. [Castillo, Nicaragua. In deep woods.] 1896. Nemobius melleus Scudder, Psyche, VII, pp. 432, 434. (Description.) [San Rafael, Vera Cruz, Mex.] 1897. Nemobius fasciatus Saussure (not Gryllus fasciatus De Geer, 1773), Biol. Cent. Amer., Orth., I, p. 243. [San Juan Bautista, Teapa, Tabasco, Mex.] 1906. Nemobius melleus Caudell, Proc. U. S. Nat. Mus., XXX, p. 243. [Sapucay, Paraguay.] This insect is distinguished from all other species of the genus Nemobius, excepting A^". major, by its very large size, peculiar color pattern and glossiness, and ovipositor with the straight dorsal margin of the apex armed with serrulations. Without being able to examine the type of major, we do not feel warranted in considering it a brachypterous individual of the .present species. Saussure's description shows major to be very closely allied to brasiliensis, differing from it in the less transverse pronotum, with bands on either side of the same, and the longer ovipositor. Based on two females from Brazil. Single type here designated: 9 ; Santarem, Brazil. (Bates) [British Museum]. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 447 We here describe a female taken at Medellin, Vera Cruz, Mex., in September, 1895, and in the Hebard Collection. Size very large for the genus; form compact; head rather large and rounded but a little flattened in front. Maxillary palpi of much the same form as in N. fasdatus. Pronotum extremely transverse with length contained nearly twice in greatest (caudal) dorsal width, narrowing evenly and considerably cephalad and with a slight medio-longitudinal sulcus in the cephalic portion. Tegmina nearly as long as the caudal femora, apex of the same dorsal in position, distal margin of dorsal field rotundato-acute-angulate, lon- gitudinal veins conspicuous, cross-veinlets numerous and heavy, faint cross-veinlets are also present in the intermediate channel and traces of such are to be found even between the veins of the lateral fields. Wings very long, considerably more than twice as long as the tegmina. Ovipositor long though shorter than the caudal femur, rigid, straight, apex of same very narrowly sublanceolate, with the margin of that portion formed by the FtiJ" l^oT^a^v ?e w'of ensts. female. (X 3.) dorsal valves straight and armed evenly with serrulations. Subgenital plate scoop-shaped, more elongate than in N. fasdatus, with a deep acute- angulate emargination mesad. Caudal femora with greatest (meso- cephalic) width contained over three times in the length.^^ Spines of caudal tibiae very long, covered with long hairs and having the margins armed with serrulations which are more than usually con- spicuous. Caudal tibiae and tarsi heavily supplied with fine short hairs. A male from Castillo, Nicaragua, taken in February, 1893, by B. Shimek and now in the Hebard Collection ex Bruner, affords the additional characters given below. Size considerably smaller; proportions much as in the female. Tegmina transparent and when in repose the dorsal fields are hemi- ^* In the Paraguayan specimens this character does not hold. 448 PROCEEDINGS OF THE ACADEMY OF [June, elliptical in outline. Subgenital plate and first proximal internal spine of caudal tibia much as in fasciatus. Measurements {in millimeters) . Medellin, San Rafael, Sapucay, Castillo, V. C, V. C, Paraguay. Nicaragua. Mexico. Mexico. , ' v cf 9 9 9 9 Length of body 9. 11.4 11.7 11.6 11.1 Length of pronotum 1.4 1.8 1.8 1.9 1.9 Greatest width of prono- tum 2.7 3.4 3.5 3.7 3.2 Length of tegmen 5.6 6.4 6.8 6.9 6.9 Length of wings 11.6 14.1 15.9 15.1 16.5 Length of caudal femur 6.5 8.3 8.3 7.7 7.5 Greatest width of caudal femur 2. 2.7 2.7 2.7 2.8 Length of ovipositor 6.4 7.1 6. 7.7 The specimens before us indicate that there is a moderate amount of size variation in the present species, particularly in the length of the ovipositor, but the specimens from Mexico and Paraguay are surprisingly similar for material from localities so widely separated. Color Notes.— The specimens before us are very similar in colora- tion; those from Nicaragua, Brazil, and Paraguay are slightly darker than the Mexican individuals. General color glossy cream-buff or Fig. 98. — A^emobius hrasiliensis. Ovipositor. (Greatly magnified.) very pale glossy tawny-olive, the underparts somewhat paler. Head of general coloration, the occiput distinctly striped with three longi- tudinal lines of mummy brown, eyes bistre. Maxillary palpi covered with short dark hairs, of general coloration with the exception of the extreme apex of the terminal segment which is bistre. Pronotum of general coloration with a large meso-dorsal maculation of mummy brown, the caudo-lateral portions of this maculation are of somewhat darker coloration and remain as two dark dots in the palest specimens in which the dark markings are very much reduced. In the palest specimens the tegmina and wings are of the general coloration, with the exception of a very small dark area at the discoido-anal root basin of the tegmina which in the darker specimens is greatly expanded and the entire exposed portions of the tegmina and wings are suffused with mummy brown; intermediate channel very slightly paler than 1913.] NATURAL SCIENCES OF PHILADELPHIA. 449 lateral fields of tegmina. Ovipositor russet, the apex burnt umber. The glossy and characteristic coloration combined with the large size and certain different proportions give the present insect a very distinctive appearance. Distrihution. — Though known from few specimens, the present species has the widest distribution of anj^ American species of the genus, being found from the state of Vera Cruz in Mexico southward through Nicaragua and Brazil to Paraguay and westward to the province of Atacama in Chile. Biological Notes. — No brachj-pterous specimens of the present species are known. Synonymy. — Scudder, in 1896, described Nemohius melleus from a single specimen from San Rafael, Vera Cruz, Mex., apparently omitting comparison with or reference to the South American species of the genus. We here place this species in the s>Tionymy under hrasiliensis, for after careful examination of the types of the two species we find that no differential characters exist. Specimens Examined.— 7 : 1 male, 6 females. San Rafael, Vera Cruz, Mexico, (TowTisend) 1 9 . Type, N. melleus Sc. IHebard Collection ex Bruner]. Medellin, V. C, Alex., Sept., 1895, 1 9 [Hebard Collection]. San Juan Bautista, Teapa, Tabasco, Mex., Jan., (H. H. Smith) 19" [Br. Mus.]. Castillo, Nicaragua, Feb., 1893, (B. Shimek) 1 cf [Hebard Collection ex Bruner]. Santarem, Brazil, (Bates) 1 9 , Type [Br. Mus.]. Sapucay, Paraguay, Feb. 10, 24, 1901, (W. T. Foster) 2 9 [U. S. X. M.]. Subgenus NEONEMOBIUS n. subgen. This subgenus includes four species and two geographic races from North America. Type of Subgenus — Nemohius cubensis Saussure. Subgeneric Description. — Size medium to verj^ small for the genus. Disto-ventral spurs of caudal tibia verj' unequal in length. Proximo- internal spine of caudal tibiae in male specialized as described under Morphological Notes for the genus ; other spines of caudal tibiae below concave, with margins of this sulcation very minutely serrulate in both sexes, the disto-internal spine not specialized. Ovipositor short, about two-thirds the length of the caudal femur, gently curved^" *^ This specimen was unfortunately recorded as N. fasciatus by Saussure in the Biologia. 5" We find the species Nemobius bruneri to be a somewhat aberrant member of this subgenus, having a more decidedly curved and slightly heavier ovi- positor than in the other species, the apex of which has the dorsal margin armed with serrations. The species Nemohius tollecus shows all of these aberrations to an even greater degree. Both of these species are considerably more robust than the other species of the present subgenus. 450 PROCEEDINGS OF THE ACADEMY OF [Juiie^ and more slender than in the species having a more rigid ovipositor;, apex with margin of portion formed by dorsal valves nearly straight or obliquely subtruncate and armed with serrulations or serrations, the portion formed by the ventral valves unarmed. Nemobius toltecus Saussure. 1859. N[emobius] toltecus Saussure, Rev. et Mag. Zool., 2e Ser., XI, p. 316. ' (Original description.) [Mexico.] 1869. Nemobius mexicanus Walker, Cat. Dermapt. Saltat. Br. Mus., I, p. 57. (Description.) [Oajaca, Mex.] 1874. Nemobius toltecus Saussure, Miss. Sci. Mex., Rech. Zool., VI, pp. 386,. 387. [Oajaca, Mex. From notes, probably on material originally described. Type lost.] 1897. Nemobius toltecus Saussure, Biol. Cent. Amer., Orth., I, pp. 223, 224. [Omilteme in Guerrero, Mex. Scudder's incorrect localities also given.] This striking species has a decided superficial resemblance to the Old World N. sylveshis, from which species it differs in being a little smaller and in having the ovipositor curved and armed and the tegmina not obliquely truncate. From the North American species it may be separated readily by its color pattern combined with the characters of the ovipositor which is considerably heavier and more curved than in any of these. Type: 9 ; Mexico (probably State of Oaxaca). [Type lost.] We here describe a female from Omilteme, Guerrero, Mex., taken in July at an elevation of 8,000 feet by H. H. Smith and now in the British Museum. Size large (for the genus), form heavy and compact; head rather large, full and rounded, about as wide as the pronotum. Pronotum. with length contained not quite one and four-tenths times in greatest (caudal) dorsal width, narrowing slightly cephalad. Tegmina very short, not half as long as the caudal femora; distal margin of dorsal field almost transverse, very broadly arcuato-truncate; intermediate channel distinctly depressed; longitudinal veins rather heavy; cross-veinlets faint. Wings absent. Ovipositor very heavy, length contained about one and one-half times in that of the caudal femora, distinctly arcuate (decidedly so for the genus) , apex of same narrowly sublanceolate enlarged with that portion formed by the dorsal valves armed, the upper margin serrate, these serrations small, short and blunt (heavier than in any of the other North American species having a curved ovipositor). Caudal femora heavy, greatest (meso- cephalic) width contained slightly more than two and one-half times. in length. The male of the present species is unknown. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 451 Measurements {in millimeters) . Oajaca (?), Omilteme, Mexico. Guerrero, Mexico. 9 9 Length of body 9 . 10 . Length of pronotum 2.^ ■Caudal width of pronotum 2.7 Length of tegmina 2.7 Length of caudal femur 6. 6.4 •Greatest width of caudal femur 2.5 Length of ovipositor 4.5 4.3 Color iVofes.— The coloration of this species shows a similarity to that of the European N. sylvestris. Head and dorsum of pronotum •chestnut, maxillary palpi yellowish with distal portion of ultimate Joint dark brown. Dorsal field of tegmina straw color, lateral lobes of pronotum and lateral field of tegmina very dark brown. Body and limbs brown, somewhat tinged with reddish. Distribution. — The present species is known from probably but three specimens, these taken in the states of Guerrero and Oaxaca, Mex. Biological Notes. — All of the known specimens of the present species are brachypterous. Synonymy.— In 1869, Walker very inadequately described N. mexi- canus from Oaxaca, Mex., which species Saussure, in 1874, synon- ymized with his A^. toltecus (described in 1859 from Mexico, probably Oaxaca). Scudder, however, in 1896, resurrected mexicanus without having examined the type, and the specimens so recorded at that time were so quoted in the Biologia by Saussure the following year, without doubt because Scudder's recent revision of the North Ameri- can species of Nemohius should have indicated that his knowledge of the North American members of the genus was superior to that of others. It is the opinion of the present author that Saussure was entirely correct in synonymizing mexicanus with his toltecus, and in the present paper the opinion which he held in 1874 is followed. We have not been able to find the type of mexicanus Walker, but we have before us the series of specimens which Scudder considered mexicanus, and it is our opinion that these do not fit Walker's original description, but that that description agrees much better with the description .and the specimen examined of toltecus. We are further strengthened in this opinion by the series of Nemohius which Scudder considered toltecus in the same paper of 1896, but which in fact belong to the very different N. carolinus neomexicanus, which series is now before us. 452 PROCEEDINGS OF THE ACADEMY OF [June, Specimens Examined. — 1 : 1 female. OmUteme, Guerrero, Mex., July, 8,000 feet, (H. H. Smith) 1 9 [Br. Mus.]. Nemobius bruneri n. sp. 1885. Nemobius sp. Bruner, Bull. Washb. Coll. Lab. Nat. Hist., IV, No. 4, p. 126. [Topeka, Kan. In woods among fallen leaves.] 1893. Cyrtoxyphus ? mriegatus Bruner, (Mss.), Publ. Nebr. Acad. Sci., III> p. 32. (Without description.) [West Point, Nebr.] 1897. Nemobius carolinus Blatchley (not of Scudder, 1877), Ins. in Gen. and Orth. Ind. in Particular, p. 23. [Indiana.] 1900. Nemobius carolinus Blatchley (not of Scudder, 1877), Psyche, IX, p. 53. [Vigo, Putnam, and Monroe Counties, Ind. Rather common. Grass- covered banks of streams and in open spaces in woods. Description.] 1903. Nemobius carolinus Blatchley (not of Scudder, 1877), Orth. of Indiana, pp. 421, 427. [Localities previously given. Description.] 1905. Nemobius carolinus Isely (not of Scudder, 1877), Publ. Kan. Acad. Sci., p. 248. [Dale's Pond, Wichita, Kan.] This species is related to N. toltecus in the shape and armament of the ovipositor, but differs in being smaller, of very different color pattern and having a much less heavy ovipositor. It may be readily separated from all other North American species by its head markings and peculiar color pattern which gives it a dotted and speckled appearance, and also by the characters of the ovipositor. The insect is in no way nearly related to any other species of Nemobius found north of the Rio Grande, but some of the more mottled specimens of N. cube7isis mormonius from Texas bear it a certain amount of superficial resemblance. Type: cf; West Point, Cuming County, Nebraska, September 1. (Bruner.) [Hebard Collection ex Bruner.] Description of Type. — Size medium; form a little robust; head large, full, and rounded, about as wide as the pronotum. Maxillary palpi not as attenuate as in N. fasciatus. Eyes broad ovate, very moderately protruding. Pronotum with length contained about one and three-tenths times in greatest (caudal) dorsal width, narrow- ing very slightly cephalad, with a slight medio-longitudinal sulcus in the cephalic portion. Head and pronotum supplied with rather long, bristly, black, scattered hairs. Tegmina with length but little inferior to that of caudal femora (.8 mm.), translucent, almost transparent, when in repose hemi-elliptical in outline. Wings absent. Subgenital plate scoop-shaped, narrowing somewhat roundly but rather decidedly caudad. Caudal femora short and heavy, having the greatest (meso-cephalic) width contained less than three times in length. Allotypic 9 . Putnam County, Indiana, August 25, 1901. (Blatch- ley.) [United States National Museum Collection.] 1913.] NATURAL SCIENCES OF PHILADELPHIA. 453 Description of Allotype. — Size larger than male; form robust. Head, maxillary palpi, eyes, and pronotum much as in the type. Tegmina almost equal in length to caudal femora, apex at humeral angle broadly but distinctly obtuse-angulate, sutural margin passes into distal margin with a distinct sharply rounded obtuse-angulation, longitudinal veins very conspicuous, cross-veinlets faint. Wings absent. Supra-anal plate and cerci much as in fasciaius. Ovipositor Fig. 19. Fig. 20. Figs. 19 and 20. — Nemobius bruneri. Cephalic (Fig. 19) and dorsal (Fig. 20) aspect of color pattern of head. (X 4.) moderately heavy, a little over half as long as the caudal femora, slightly but noticeably curved, apex of same very narrowly sub- lanceolate^^ with that portion formed by the dorsal valves armed, the upper margin serrate, these teeth regular, heavj^ with immediate apices very sharp. Subgenital plate scoop-shaped, very acute- angulate emarginate mesad with margins broadly rounded. Fig. 21. — Nemobius bruneri. Ovipositor. (Greatly magnified.) Measurements {in millimeters). West Point, Nebr. Putnam Co., Ind. c? Type. cf cf 9 Allotype. Length of body 6.8 6.4 6.5 7.4 Length of pronotum 1.4 1.4 1.5 1.9 Caudal width of pronotum 1.8 1.8 2. 2.1 Length of tegmina 4. 4.1 4.1 3. Length of caudal femur 4.8 4.7 5. 6. Greatest width of caudal femur 1.7 1.8 2. 2.1 Length of ovipositor .3.8 51 This specimen, as well as all but two of the others of the present species before us, has the dorsal and ventral valves of the ovipositor considerably sepa- rated at their extremities; the two specimens mentioned also indicate this cleavage, but to a much less degree. We have noted this peculiarity to be very rare in other species of Nemobius, and in all cases the irregularity of its proportions and the distorted appearance of the apices of the valves prove it to be an abnormality. It is quite probable that peculiarities in the oviposition of the insects has brought about this result, and a study of these habits in this and other species should prove most interesting. 454 PROCEEDINGS OF THE ACADEMY OF [June, Wichita, Washington, Cabin John Kan. D. C Run, Md. cT 9 9 (? ^ 9 Length of body 7.5 9.1 9.4 7. 6.6 9.1 Length of pronotum 1.7 1.9 2. 1.6 1.9 2. Caudal width of prono- tum 2.1 2.1 2.7 2. 2.2 2.4 Length of tegmina 4.4 3.1 3.6 3.9 2.8 3.9 Length of caudal femur. 5.6 6. 6.4 5. 5.2 6.7 Greatest width of caudal femur 2.1 2.4 2.5 2. 2. 2.5 Length of ovipositor 3.4 3.5 3.7 4.1 There is considerable variation in proportion and size in the series before us, large and small individuals being found in the same region as the measurements of the Washington and Cabin John Run speci- mens show. The majority of specimens from the Atlantic coast are about intermediate in size between the extremes. Color Notes. — The coloration of the specimens here described is typical of the series before us, the only variation shown being a small amount of intensification or diminution of the color pattern in a few specimens. General coloration clay color mottled and flecked with mummy brown. Head below and including the interantennal space shining Vandyke brown, above cinnamon more or less maculate with mummy brown above the interantennal space and on the base of the occiput, the broad occipital bar of cinnamon thus formed usually rather conspicuous, eyes dark bistre. Maxillary palpi clay color, the distal portion of the terminal segment mummy brown. Pronotum clay color, more or less mottled and flecked with mummy brown, this mottling often heavy in the median portion of the dorsum, and particularly so on the lateral lobes. Tegmina of male sepia, discoidal vein cream color but usually very inconspicuous, discoido-anal root- basin and upper portion of lateral field bistre; of female bistre, with veins and intermediate channel clay color. Dorsal surface of abdo- men of male (concealed by tegmina) clove brown; of female cephahc portion (concealed by tegmina) clove brown, exposed portion clay color more or less maculate with clove brown. Ovipositor burnt umber. Ventral surface of body clay color. Limbs clay color tinged with russet and more or less mottled and flecked with prouts brown. The specimens from Wichita, Kan., differ from the rest of the series in having the lower portion of the head cinnamon instead of Vandyke brown, and the intermediate channel of the female tegmina 1913.] NATURAL SCIENCES OF PHILADELPHIA. 455 is more decidedly defined in the paler color than in the other speci- mens. In every other respect, however, these specimens are typical. Distribution. — The present species is known from the vicinity of the District of Columbia, west-central Indiana, northeastern Nebraska, and northeastern and south-central Kansas. Biological Notes. — No macropterous specimens of this insect are known. Synonymy. — The history of the present species is a succession of unfortunate occurrences. In 1885, Bruner recorded specimens of Nemobius sp. from Topeka, Kan., which belong to this species; later, in 1893, he drew up a description of the species which was never published, hence his Cyrtoxyphus ? variegatus Bruner (Mss.), an unidentifiable ijame from the literature, but the material before us from the Bruner Collection shows it to be this species. Before 1897, Blatchley sent a series of Indiana specimens of Nemobius to Scudder for determination, and the present species was inexcusably identified for him as N. carolinus Scudder, hence his subsequent misconception of that species, and Caudell upon seeing specimens of Blatchley's material so labelled followed him in this error; thus material sent him for determination by Isely was likewise recorded as carolinus. Specimens Examined. — 19: 10 males, 9 females. Cabin John Run, Maryland, Sept. 23, 1911, (Davis) 1 9 [Davis Collection]. Plummer's Island, Md., Oct. 11, 12, 1906, (CaudeU) 1 c^, 1 9 [U. S. N. M.j. Washington, D. C, Oct. 5, (CaudeU) 3 o^, 3 9 [U. S. N. M.]. Glencarlyn, Virginia, Sept. 6, (Caudell) 2 d" [U. S. N. M.]. Putnam County, Indiana, Oct. 7, 1894, Aug. 25, 1901, (Blatchley) 1 cf , 1 9 . 9 Allotype [U. S. N. M.]. Fairview, Kansas, Aug. 15, 1904, (Isely) 1 9 [tJ. S. N. M.]. Wichita, Kan., June, 1904, (Isely) 1 c^, 2 9 [U. S. N. M.]. West Point, Nebraska, Sept. 1, (Bruner) 2 d^. Type, Paratype [Hebard Collection]. Nemobius cubensis Saussure. 1874. Nemobius cubensis Saussure, Miss. Sci. Mex., Rech. Zool., VI, pp. 384, 385, PI. 7, fig. 5. (Original description.) [Cuba; Mexico; Brazil.] 1877. Nemobius volaticus Scudder, Proe. Bost. Soc. Nat. Hist., XIX, pp. 36,37. (In part.) (Description of cf.) [Georgia.] 1888. N[emobius] cubensis Bolivar, Mem. Zool. Soc. France, I, p. 156. [Cuba.] 1891. Nemobius cubensis Gundlach, Ent. Cuba, II, p. 367. [Cardenas, Cuba.] 1893. Nemobius cubensis Brunner, Proc. Zool. Soc. London, 1893, p. 609. (In part.) [Costa Rica.] 1895. Nemobius cubensis Bruner, Bull. Lab. Nat. Hist. Univ. Iowa, III, pt. 3, p. 67. [Castillo, Nicaragua.] 1896. Nemobius carolinus Scudder, Jour. N. Y. Ent. Soc, IV, p. 107. (In part.) [Lake Worth, Fla.] 30 456 PROCEEDINGS OF THE ACADEMY OF [June, 1896. Nemobius cubensis Scudder, Jour. N. Y. Ent. Soc, IV, pp. 99, 105, 106. (In part.) Lake Worth, Sanford, and Capron, Fla.] 1896. Nemobius aterrimus Scudder, Jour. N. Y. Ent. Soc, IV, pp. 100, 105. (In part.) (Description of 9 .) [Jacksonville, Fla.] 1896. Nemobius cubensis Pantel, Anal. Soc. Espan. Hist. Nat., XXV, p. 51. (Morphological studies.) 1896. Nemobius aterrimus Scudder, Psyche, VII, p. 432. (In part.) (New key.) 1896. Nemobius cubensis Scudder, Psyche, VII, p. 432. (New key.) 1905. Nemobius aterrimus Rehn and Hebard (in part of Scudder, 1896), Proc. Acad. Nat. Sci. Phila., 1905, p. 50. [Tampa, Fla.] 1909. Nemobius cubensis Rehn, 2d Rept. Centr. Exp. Sta. Rep. Cuba, p. 218. [Cayamas, Cuba.] 1911. Nemobius cubensis Sherman and Brimley, Ent. News, XXII, p. 391. [Raleigh, N. C] 1912. Nemobius cubensis Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1912, p. 273. [Homestead, Fla.] The large series of the present species, which is the type of the subgenus Neonemobius, before us shows that a very close relationship exists to N. palustris. although typical N. cubensis looks very different from that species, being larger, of less dark and solid coloration, with tegmina almost always much less abbreviate. A careful study of the material at hand shows that there are, however, specimens in the series of cubensis which can scarcely be separated from palustris. These few extreme individuals are as small and of much the same form as palustris, with wings lacking and tegmina quite as abbreviate as in that species. Almost every one of these specimens, however, is not as solid in coloration, and all but two are more pale in general coloration. The majority of specimens of cubensis wanting wmgs have the tegmina considerably less abbreviate than in palustris, a number of these having the tegmina quite as well developed as in those specimens having the longest wings. In summing up the differences between the two species we may add that, in addition to the other differential characters, cubensis usually has the under por- tions of the body quite pale, much paler than is normal in palustris. From typical specimens of the western race, A^. cubensis mormonius, typical individuals of the present species may be readily separated by their less robust build and more solid coloration without the characteristic cephalic and tegminal markings of that race. In fact, so different are typical specimens of the two that, were it not for the very large series before us which reveals the vast amount of variability found in these insects, we should certainly have considered them distinct species. Small dark macropterous males of N. fasciatus have been mistaken for this species, but the heavier build and less smooth appearance 1913.] NATURAL SCIENCES OF PHILADELPHIA. 457 of that species should always distinguish readily even the most aberrant males from cubensis, while the ovipositor characters of the females show the two species to belong to different subgenera. Little has apparently been known of the life history of the present species, and it is probably due to the fact that the majority of speci- mens collected have been taken flying to lights at night that so few brachypterous specimens have been previously recorded. Types: 4 c?", 5 9; Cuba. (Poey.) [Saussure Collection.] We here describe a female from Cuba, taken by Gundlach, and now in the Scudder Collection. Size small, form slender for the genus; head small but full and rounded, wider than cephalic width of pronotum. ]\Iaxillary palpi of much the same form as in .V. fasciatus, but with joints not quite as much produced. Eyes broad-ovate, very mildly prominent, though somewhat more so than in A^. jmlustris. Pronotum of much the same Fig. 22. — N^emobius cubensis. Ovipositor. (Greatlj- magnified.) proportions as in fasciatus, but of smaller relative size to rest of body. Tegmina long, extending beyond end of abdomen, apex of same dorsal in position, distal margin of dorsal field rotundate acute- angulate, longitudinal veins not very prominent, cross-veinlets very faint. Wings absent. Ovipositor more than two-thirds as long as caudal femur, distinctly though very feebly arcuate; apex of same very narrowly sublanceolate, with that portion formed by the dorsal valves armed, the upper margin serrulate, these serrulations very closely arranged, regular, minute, sharp. Caudal femora with greatest (meso-cephalic) width contained about three times in length. Spines of caudal tibiae more slender than in fasciatus, not quite as slender as in palustris. A male in the Scudder Collection, bearing the same data as the female here described', affords the following additional information. Size very slightly smaller, proportions very much the same. The tegmina are translucent, and when in repose the dorsal fields are hemi- elliptical in outline. Wings very long. Proximo-internal spine of caudal tibiae similar to that oi fasciatus. 458 PROCEEDINGS OF THE ACADEMY OF [June, Measurements {in millimeters) . Homestead, Fla. Cuba. Macropterous extremes. Brachypterous extremes. (f 9 cTcT 9 9 d'd' Length of body 7. 7.2 7. - 7.1 6.9- 7.4 5.7-6.6 Length of prono- tum L6 1.4 1.4- 1.4 1.3- 1.5 1.2-1.7 Caudal width of pronotum 2.4 2.3 2,2- 2.4 2.2- 2.3 1.9-2.2 Length of teg- mina 4.6 4.7 4.1- 4.3 4.4- 4.9 3.9-4. Length of wings . 11 10.3-10.7 10.4-11.4 Length of caudal femur 5.3 5.4 5.1- 5.4 5.3- 5.1 4.2-5.1 Greatest width of caudal femur 1.5 1.7 1.6- 1.7 1.8- 1.8 1.8-1.9 Length of ovi- positor 4 3.8- 3.8 Raleigh, Washington, N. C. D. C. Brachypt. Macropt. extremes. extremes. 9 9 9 9 Length of body 6.6-8. 6.8-7.4 Length of pronotum 1,7-1.7 1.4-1.6 Caudal width of pronotum 2.1-2.3 2.1-2.2 Length of tegmina 2.9-3.4 4.6-4.8 Length of wrings 10.7-10.4 Length of caudal femur 5.4-5,6 5.1- 5.6 Greatest width of caudal femur 2.-2. 1.6-2. Length of ovipositor 3.4-3.9 3.9-4. Vera Cruz, Mex. Macropt, extremes, cf 9 9 Length of body 7.1 6.-6.9 Length of pronotum 1.2 1 .3-1.6 Caudal width of pronotum 2 . 2.-2.1 Length of tegmina 4.8 4.-4.4 Length of wings 9.6 8.9-9.7 Length of caudal femur 4.6 4 . 7-5 . Greatest width of caudal femur 1,6 1 , 7-1 . 8 Length of ovipositor 2.7-2.9 9 9 5.6-7. 1.6-1.7 2. -2,2 2,9-3.1 5. -5.2 1.7-1.9 3.6-4. Staten Island, N, Y. 9 7,4 1.7 2.3 4.5 11. 5.4 1.8 3.7 Castillo, Nica- ragua. / . 1.4 2.1 4.1 9.4 4,7 1,7 2,8 1913.] NATURAL SCIENCES OF PHILADELPHIA. 459 It is evident that the variation in the present species and its races is further emphasized by the measurements given above. It is true that the specimens from Vera Cruz, Mexico, and Castillo, Nicaragua, have in the female sex ovipositors very much shorter than are found in any of the other specimens before us. These specimens are also different in being the only ones at hand having the lower portion of the head much paler than the upper portion, and the maxillary palpi pale with only the distal portion of the terminal segment very dark. In other respects these specimens agree almost perfectly with typical ciibensis, and after a careful consideration of the variation in the species, these differences do not warrant considering this material worthy of racial distinction. Color Notes. — -The specimens here described agree well with other macropterous specimens of the species before us in the coloration- here given. General color very dark Vandyke brown, glossj% shading to burnt umber on limbs and tegmina. Head and pronotum very dark Vandyke brown, immaculate, shining; eyes equally dark. Maxillary palpi^^ Vandyke brown, the terminal segment very dark. That portion of the head which fits under the pronotum may be seen to be a very little paler than the other parts of the head when examined closely. Tegmina translucent, shading from Vandyke brown in the proximal portion to burnt umber on the greater part of both dorsal and lateral fields; intermediate channel very faintly defined in burnt umber. Dorsal surface of abdomen shining black. Exposed portion of wings burnt umber, concealed portion very white when folded. Limbs and ventral surface of insect immaculate, limbs above prouts brown, ventral surface pale^ but varying con- siderably in depth of coloration. We have but one large series of brachypterous specimens of cubensis before us, these from Homestead, Fla.,the majority of which specimens are not of as solid coloration and are of somewhat lighter shade than the specimens described above. In these the penultimate segment of the maxillary palpi is mummy brown, the other segments of the very dark general coloration. Pronotum a little maculate with mummy brown, tegmina marked with the same color, the intermediate channel quite distinctly defined in the lighter color in several speci- mens. Limbs prouts brown, maculate to a slight degree with darker shades. 52 In some very dark specimens before us, the penultimate segment of the maxillary palpi is nearly white, while the other segments are very dark; in a few of the other specimens only the distal portion of the terminal segment is very dark. 460 PROCEEDINGS OF THE ACADEMY OF [June, Other brachypterous specimens before us are even darker than the normal coloration, being colored very similarly to A^. palustris, but in almost all cases having much longer tegmina, and in the one or two cases where this is not true they are larger than the largest specimens of that species. Distribution. — The present species is known from Staten Island, N. Y., south along the Atlantic coast to the extreme southern portion of the mainland of Florida, and also from Cuba, Vera Cruz in Mexico, Nicaragua and Costa Rica to Brazil. Its western distribution in the United States appears to be limited bj^ the fall-line. The records given Ijy Scudder and Blatchley for Illinois and Indiana pertain to other species. Biological Notes. — Though seldom numerous, the present insect appears to be always much more plentiful near the sea than elsewhere ; the writer has found it in large numbers but once, in the high grass of the everglades. Of all the North American species of Nemohius it develops in the macropterous form proportionately the longest tegmina and wings. The majority of macropterous specimens taken have been captured flying to lights at night ; about such places we have never found this insect anything but very scarce. Con- sidering the usual extreme development of the tegmina and wings in the present species, it is surprising to find some brachypterous specimens with tegmina quite as much aborted as in A'', palustris. Synonymy. — In 1877, Scudder described Nemohius volaticus, which species he himself placed in the synonymy under cubensis in 1896. We here select a male of that series from Georgia in the Scudder Collection as single type.^^ In Scudder's 1896 paper on the North American species of the genus, he unfortunately created confusion by misidentifying much material, one instance of which was the crediting of specimens of the present species from Lake Worth, Fla., to A^. carolinus and another in taking a small dark brachypterous female of cubensis as the basis of the description of that sex of his new and doubly invalid A^. aterri- mus. In 1905, Rehn and Hebard, at a loss to fathom the literature, credited a pair of dark cubensis, having long tegmina but no wings, from Tampa, Fla., to aterrimus. Specimens Examined.^* — 67: 14 males, 52 females, and 1 nymph. *3 The female before us is a macropterous specimen of N. carolinus. ^* The following abbreviations are used to differentiate the specimens here recorded: b., brachypterous; m., macropterous; I. teg. only, long tegmina only; med., medium; v., very. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 461 Staten Island, New York, Aug. 22, (Davis) 1 9 [Davis Collection], m. Cape May County, New Jersey, Aug., 1910, (Davis) 1 9 [Davis Collection]. V. b. Montgomery County, Maryland, Sept. 2,5, 1911, (Davis) 1 9 [Davis Col- lection]. V. b. Washington, D. C, .\ug. 24, 29, (Havenstein) 9 9 [U. S. N. M.]. m. but 1 1. teg. only. Raleigh, North Carolina, Aug. 15, 16, 17, Sept. 6, 12, 190.5, 06, 08, 09, (Brimley) 6 9 [Brimley Collection], med. b. but 1 m. Florence, South Carolina, Sept. 6, 1911, (R. & H.) 1 cf. b. Georgia, 1 d^. Type N. volaticus Sc. Jesup, Ga., Sept. 1, 1911, (R. & H.) 1 9 . 1. teg. only. Jacksonville, Florida, Nov., 1885, (Ashmead) 1 9 . Paratype A\ aterrimus Sc. [Hebard Collection ex Bruner]. V. b. Sanford, Fla., (Frazer) 1 cf , 1 9 [Scudder Collection]. Capron, Fla., Jan. 16, Apr. 12, .3 9 [U. S. N. M. and Scudder Collection], m. Tampa, Fla., Jan. 17, 1904, (H.) 1 o", 1 9 . 1. teg. only. Lake Worth, Fla., (Slosson) 1 d" , 1 9 [Scudder Collection]. V. b. Miami, Fla., Feb. 4, 1903, (H.) 1 d^. m. Homestead, Fla., Mar. 17-19, 1910, (H.) 7 a", 14 9,1 n.; July 10-12, 1912, (R. & H.) 1 9 . med. b., 3 c^, 2 9 m. Cuba, (Gundlach) 2 cf , 3 9 [Scudder Collection], m. Vera Cruz, Vera Cruz, Mexico, (Knab) 1 cf , 8 9 [U. S. N. M.]. m. but 1 I. teg. only. Castillo, Nicaragua, Feb., 1893, (Shimek) 1 9 [Hebard Collection ex Bruner]. m, Nemobius cubensis mormonius Scudder. 1893. Nemobius sp. Bruner, N. Amer. Fauna, VII, p. 266. [Death Valley region (Panamint Valley) and Los Angeles, Cal.] 1893. Nemobius cubensis Brunner, Proc. Zool. Soc. London, 1893, p. 609. (In part.) [New Orleans, La.] 1896. Nemobius carolinus Scudder, Jour. N. Y. Ent. Soc, IV. p. 107. (In part.) [Texas.] 1896. Nemobius mexicanus Scudder (not of Walker, 1869), Jour. N. Y. Ent. Soc, IV, pp. 100, 106, 107. (In part.) [Mexico, Jalapa, Orizaba and Minatitlan, Mex.] 1896. Nemobius mormonius Scudder, Jour. N. Y. Ent. Soc, IV, pp. 101, 106. (Original description.) [St. George, Utah.] 1896. Nemobius neomexicanus Scudder, Jour. N. Y. Ent. Soc, IV, p. 104. (In part.) [Sierra el Taste, Lower Cal.] 1896. Nemobius mormonius Scudder, Psyche, VII, p. 433. (New key.) 1896. Nemobius cubensis Scudder, Jour. N. Y. Ent. Soc, IV, p. 106. (In part.) [San Jose del Cabo, Lower Cal.] 1896. Nemobius mexicanus Scudder (not of Walker, 1869), Psyche, VII, p. 433. (New key.) 1897. Nemobius cubensis Saussure, Biol. Cent. Amer., Orth., I, p. 222. [Teapa, Tabasco, Mex.] 1897. Nemobius comanchus Saussure, Biol. Cent. Amer., Orth., I, pp. 221, 222. (Description.) [Durango and (or) Sinaloa, Mex.] 1897. Nemobius mexicanus Saussure, Biol. Cent. Amer., Orth., I, pp. 221, 224. (Scudder's wrong characters and records given.) 1906. Nemobius mexicanus Hart (not of Walker, 1869), Ent. News, XVII, p. 160. [College Station, Tex.] 1907. Nemobius sp. Rehn, Ent. News, XVIII, p. 212. [Brownsville, Tex.] 1909. Nemobius cubensis Tucker, Ent. News, XX, p. 297. [Piano, Tex.] 1910. Nemobius mormonius Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1909, p. 483. [Las Vegas, Nev.] The present geographic race varies widely in general appearance, owing probably to the facts that its range includes a great variety of territory, and that as this range includes so much of the semiarid 462 PROCEEDINGS OF THE ACADEMY OF [June, and desert regions of the West, it is found more or less isolated at a great number of localities. Brachypterous individuals somewhat outnumber the macropterous. Though the specimens in each respect- ive series from Texas, from Nevada, and from Vera Cruz, Mex., are quite similar, each series has a decidedly distinctive appearance; intermediates between these are, however, always to be found. The general resemblance to A^. carolinus neomexicanus is sometimes so very close that, were it not for the fact that in this species the disto-dorsal spurs of the caudal femora are unequal, while in carolinus neomexicanus they are equal, it would be impossible to distinguish some of the males of the two, though the females are readily separable by the very different characters of the ovipositor as well. So different are individuals from the Texan region, the arid South- west and southern Mexico, that there is little wonder that several synonyms of the present insect exist, and it would seem advisable to recognize at least three geographic races, were it not for the fact that practically all of the differences are due to coloration, probably caused by the immediate environment and, as would be expected in such a case, every conceivable intergradation is found in the large series before us. The insect differs from N. cubensis in being less slender, in having Fig. 23. — Nemobius cubensis mormoniiis. Ovipositor of specimen from Texas. (Greatly magnified.) a different color pattern, and in being more mottled and almost always considerably paler in general coloration. The color pattern and its variations, consequently important in determining the present insect, is fully treated in the Color Notes. Described from two females and a nymph from a single locality. Single type here designated: 9 ; St. George, Utah. April. (Palmer.) [Scudder Collection.] We here describe the paratypic female now in the Hebard Col- lection ex Bruner. Size small; form not as slender as in N. cubensis, rather compact; head small, full, and rounded, wider than cephalic width of pronotum. Eyes and maxillary palpi much as in cubensis. Pronotum with length almost equal to caudal width, narrowing very little cephalad. Teg- mina short, covering little over half of abdomen, three-fifths the 1913.] NATURAL SCIENCES OF PHILADELPHIA. 463 length of the caudal femora; apex at humeral angle very broadly and roundly obtuse-angulate, distal margin of dorsal field almost transverse, very broadly arcuato-truncate, sutural margin passes into distal margin with a distinct, rather sharply rounded angulation at an angle of slightly more than ninety degrees; intermediate channel not conspicuously depressed and forming part of the dorsal field, this field rounding very slightly; longitudinal veins few but conspicuous, cross-veinlets^^ exceedingly faint. Wings absent. Ovi- positor^*^ a little more than two-thirds as long as the caudal femur, ^ Fig. 2A.—Nemohius cubensis mormonius. Ovipositor of specimen from Vera Cruz, Mex. (Greatly magnified.) distinctly though feebly arcuate, form and armament much as in cubensis. Caudal femora and spines of caudal tibiae much as in that species. We here select as allotype, a male from Las Vegas, Nevada, taken Sept. 2, 1909, by Rehn and Hebard, and in the Hebard Collection. Description of Allotype. — Size smaller than female, proportions much the same. The tegmina are translucent and when in repose the dorsal fields are hemi-elliptical in outline. Wrings absent. Measurements {in millimeters) . St. George, Utah. Las Vegas, Nev. Type Paratype Allotype 9 9 d^ d^d^ 9 9 Length of body 7.5 7. 7. 7. (6.6-7.4) 7.4(6.6-8.2) Length of pronotum. 2.2 1.9 1.6 1.6(1.4-1.8) 1.7(1.6-1.9) Caudal width of pro- notum 2.3 2.1 2.1 2.1(2.1) 2.2(2.1-2.3) Length of tegmina 3. 2.9 4.1 4.1 (3.9-4.3) 2.9 (2.7-3. ) Length of caudal femur 5. 5. 5. 4.9(4.8-5.) 5.2(5.1-5.3) Greatest width of caudal femur 2. 2. 2. 1.9(1.7-2.) 2. (2.) Length of ovipositor... 3.8 3.8 (3.5-4. ) 55 These cross-veinlets are so faint in some specimens as to be scarcely visible under a Zeiss binocular. 56 As the ovipositor of the paratype before us is broken, we have drawn up this portion of the description from the type. 464 PROCEEDINGS OF THE ACADEMY OF [Juiie, Beaumont, Tex. c^d^ 9 9 c^ 9" Length of body 6 . 7 (5 . 3-7 . 5) 7 . 6 (7 . 1-8 . ) 7.2 7.1 Length of pronotum .. 1.6(1.3-1.8) 1.7(1.6-1.8) 1.4 1.6 Caudal width of pro- notum 2. (1.9-2.1) 2. (1.9-2.1) 2.4 2.3 Length of tegmina 4.5 (4.2-4.8) 3.7 (3. -5. ) 4.4 5.6 Length of wings 9.4 10.8 I^ength of caudal femur 5. (4.7-5.3) 5.3(5.-5.6) 5.1 5.6 Greatest width of caudal femur 1.9(1.8-2.) 2. (2.) 2. 2. Length of ovipositor 3.9(3.6-4.2) '3.4 Durango Orizaba, Cordoba, Mex. or Sinaloa, Mex. (Extremes) . 9' ^ 9 "" d^cf 9 9 Length of body 8.5 7.6 6.5 6.8-7.9 7.1-7.9 Length of pronotum 1.8 1.6 1.8 1.4-1.5 1.4-1.9 Caudal width of pro- notum 2.3 2.1 2.1 2.1-2.4 2.1-2.2 Length of tegmina 5.6 4.1 2.9 4.6-5. 4.4-5. Length of wings 12.4 10.2-10.4 10. -11.1 Length of caudal femur 5.8 5. 5.1 5.-5.2 5.1-5.5 Greatest width of cau- dal femur 2.3 2. 2. 1.8-2. 2.-2.1 Length of ovipositor 4.2 3.6 4.-4. Averages in Ovipositor Length. Galveston, Tex. 3.5(3.4-3.7) Brownsville, Tex. 3 . 8 (3 . 5-4 . 1) Uvalde, Tex . 3.6(3.2-3.9) Fort Yuma, Cal. 3.7 Los Angeles Co., Cal. 3.8 Tia Juana, Cal... 3.6 Jalapa, Mex. 3.7 Though some amount of variation is shown in each of the series before us, there appears to be little difference in the size and pro- portions of specimens from the various natural divisions of the range of the present insect. As has been noticed in other species, macrop- terous specimens always are found to have the pronotum more widened caudad. Color Notes. — The great majority of specimens from Texas are of °' This specimen is the type of A^. comanchus Saussure. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 465 the type of coloration here described. General color mummy brown, inconspicuously marbled with sepia and bistre. Head raw umber, a very narrow line of darker shade extending across the occiput from the caudal margin of the eyes, the remaining caudal portion of the occiput and postocular portion of the gense somewhat paler than the rest of the head. Eyes prouts brown. Maxillary palpi raw umber, the distal half of the terminal segment clove brown. Pronotum mummy brown clouded with bistre, under a Zeiss binocular small dots of wood brown are apparent. Tegmina translucent; of male with dorsal field a very dark shade of bistre particularly pronounced in the proximal portion, discoidal vein obscurely outlined in cream color, lateral fields clove brown ; of female bistre much suffused with raw umber, the longitudinal veins of the dorsal field, the intermediate channel and ventral margin of lateral fields raw umber, remaining portion of lateral fields clove brown. Dorsal surface of abdomen of males and macropterous females (concealed beneath tegmina) shining black; of brachypterous females, proximal (concealed) portion of the same color, remaining portion black somewhat maculate with raw umber and covered with hairs of the same color. Ovi- positor Vandyke brown. Limbs tawny olive slightly mottled with raw umber, the outer face of the caudal femora marked with two faint longitudinal bars of the latter color. The material before us from the state of Vera Cruz, Mex., resembles these specimens, but the majority are somewhat darker with a more russet suffusion, and the markings which give most of the specimens from Texas a somewhat marbled appearance are considerably reduced. The distinctive markings of the head are^^, however, in most cases more pronounced. This type of coloration, as well as intermediates between it and the normal Texan type, is represented by a number of specimens from Texas. The majority of specimens from Fort Yuma, Cal, and Lower California, are of a very pale desert type of coloration. So pale are these that the color pattern has in most cases almost disappeared. General color wood brown, faintly marked with a darker shade. Head mars brown, a paler caudal portion of the occiput only detect- able under the Zeiss binocular. Disk of pronotum of general color ^ Scudder, in his treatment of the specimens which are now before us, and which he wrongly considered N. mexicanus, gave these color characters very well in his key, "longitudinal markings of head interrupted at the crown, the whole back portion immaculate, sharply defined from the portions in front at the summit, which is feebly subcarinate transversely." 466 PROCEEDINGS OF THE ACADEMY OF fjune;. marbled with a darker shade, lateral lobes heavily marked with very dark bistre. Tegmina mummy brown marked cephalad with dark bistre. Ovipositor burnt umber. Limbs and ventral surface of body wood brown tinged with russet, the longitudinal markings on the outer surface of the caudal femora very faintly indicated. Inter- mediates between this and the normal Texan type are to be found in specimens from San Jose del Cabo, L. Cal., Las Vegas, Nev., and Brownsville, Tex. The typical series from St. George, Utah, all of the Californian specimens except those from Fort Yuma, and almost the entire series from Las Vegas, Nev., belong to a color phase closely resembling that of the specimens from Vera Cruz, excepting that these specimens, are not so much tinged with russet, the usually distinctive cephalic markings are very obscure (practically absent in many cases), while the females have the intermediate channel of the tegmina strikingly cream colored. Intermediates between this type of coloration and that of the Mexican series are at hand, but in none of the Texan series is a close approach to this to be found. In all other respects,. however, the specimens are inseparable and consequently not worthy of even racial distinction. Distribution. — The present geographic race is known to range from Biloxi, Miss., to the Pacific coast, and southward as far as the state of Tabasco, Mex. The most northern localities at which it has been taken are St. George, Utah, Las Vegas, Nev., and the Panamint Valley, Cal. Biological Notes. — In the desert regions of the southwestern. United States this insect is but very occasionally met with in the short grasses growing near streams and other restricted damp areas, but in the semiarid mesquite region of Texas it is widely distributed in the short grasses which are there so frequently encountered; and its range extends still further eastward, where it is found in the typical undergrowth of the long-leaf pine forests. A few macropter- ous specimens have been taken at light at Beaumont, Brownsville, and Del Rio, Tex. ; other than at light this long-winged form has scarcely ever been encountered. Morphological Notes. — It is the opinion of the author that the considerable amount of variation found in the present insect is due to its frequent isolation together with its very extensive distribution. Though ranging over all the desert regions of the southwest, this insect, like all other North American Nemobius, is never found unless a certain amount of moisture is present. In its desert distribution 1913.] NATURAL SCIENCES OF PHILADELPHIA. 467 there are consequently often hundreds of square miles utterly unfit for the insect, since it is only found where some dampness is derived from a river or stream, a lake, or some subterranean water supply. There is little variation in any of the specimens from the heavier portion of the Texan mesquite belt where its range is not discontinuous. Synonymy. — When the present geographic race was described in 1896, Scudder wrongly believed a series of specimens of this insect from the state of Vera Cruz, Mex., to belong to the poorly described N. mexicanus of Walker, and he also failed to recognize as such pale specimens of the same from Texas and Lower California which he determined as N. carolinus and A^. neomexicanus (both belonging to the subgenus Eunemobius, which has the disto-ventral spurs of the caudal tibiae equal and the apex of the ovipositor an.ied above and below). In 1897, Saussure, supposing Scudder to be correct in his statements, followed him in quoting the records of what Scudder supposed to be mexicanus, but without seeing the material, and so a single specimen of the pale color form of cuhensis mormonius in his possession from Durango or Sinaloa, Mex., was to him apparently new and so de- scribed as A'', comanchus. In the same paper Saussure considered specimens from Tabasco, Mex., to be N. cubensis. Hart recorded this insect as N. mexicanus in 1906. Specimens Examined. — 1.31: 66 males, 61 females, and 4 nymphs. BUoxi, Mississippi, March 11, (F. M. Jones) 1 cT [A. N. S. P.]. b. Texas, (Belfrage) 2 cT [Scudder Collection]. 1 m. College Station, Tex., Dec. 23, 1905, (Hart) 1 & [111. State Lab. Nat. Hist.], b. Beaumont, Tex., July 23, 1912, (H.) 9 d^, 6 ? , 1 n. 1 cf , 2 9 , m. Webster, Tex., July 19, 1912, (H.) Id', b. Dickinson, Tex., July 20, 1912, (H.) 7 d', 4 9 . b. Galveston, Tex., July 19-21, 1912, (H.) 7 d^, 6 9 , 1 n. 19 m. Rosenberg, Tex., July 25, 26, 1912, (H.) 1 9 . b. Columbus, Tex., Dec. 15, 1878, (Schwartz) 2 d', 2 9 [U. S. N. M.]. Under old leaves near Brazos River. Sm. b. Kerrville, Tex., Aug. 17, 18, 1912, (R. and H.) 1 d'. b Victoria, Tex., Aug. 8, 1902, (W. E. Hinds) 1 9 [U. S. N. M.]. Lg. m. Brownsville, Tex., June, (Snow) 2 9 [A. N. S. P.]. m.; May 1, 4, 1904, (Barber) 3 9 [U. S. N. M.]. sm. m.; July 31-Aug. 5, 1912, (R. and H.) 7 cf , 6 9 , 1 n. 2 9m.; June 23, 1908, Nov. 21, 24, Dec. 19, 1910 (Hart) 3 d', 7 9 . 1 n. [111. State Lab. Nat. Hist.]. 1 d', 3 9 m. .Piper Plantation, Brownsville, Tex., Aug. 3, 1912, (R. and H.) 1 d", 2 9 . 9 9 m. Esperanza Plantation, Brownsville, Tex., May 3, 1903, (Schaeffer) 1 9 [Bklyn. Inst. A. and S.]. b. Uvalde, Tex., Aug. 21, 22, 1912. (R. and H.) 5 d', 4 9 . b. Del Rio, Tex., Aug. 22, 23, 1912, (R. and H.) 2 cf , 1 9 . m. St. George, Utah, April, (Palmer) 2 9 , 1 n. Type and Paratypes [Scudder and Hebard Collection ex Bruner]. Dk. b. 468 PROCEEDINGS OF THE ACADEMY OF [June, Las Vegas, Nevada, Aug. 10, 1907, (H.) 2 d', 1 9 . b.; Sept. 2, 1909, (R. and H.) 5 c?, 7 9. Dk. b. Fort Yuma, California, (Wickham) 1 cf , 2 9 [Hebard Collection ex Bruner]. V. pi. m. Panamint Valley, Cal., (Koebele) 1 d' [Hebard Collection ex Bruner]. Dk. b. Tia Juana, Cal., Aug. 16, 1907, (H.) 19. Dk. b. Los Angeles County, Cal., (Coquillett) 1 9 [U. S. N. M.]. Dk. b. Mexico, (Sumichrast) 2 cT, 1 9 [Scudder Collection], b. Sierra el Taste, Lower California, 1 9 [Hebard Collection ex Bruner]. V. pi. m. San Jose del Cabo, L. Cal., 1 cf , 3 9 [Hebard Collection ex Bruner]. Lg. m. Durango or Sinaloa, Mexico, (Forrer) 1 9 . Type of N. comanchus. [Biologia Collection in Br. Mus.]. Lg. v. pi. b. Jalapa, Vera Cruz, Mex., 1 9 [Hebard Collection ex Bruner]. b. Medellin. V. C, Mex., 2 cf [Hebard Collection ex Bruner]. 1 m. Orizaba, V. C, Mex., Nov., 1887, (Bruner) 1 cf, 1 9 [Hebard Collection ex Bruner]. b. San Rafael, V. C, Mex., (Townsend) 1 cf [Hebard Collection ex Bruner]. m. Minatitlan, V. C, Mex., Feb. 1, 1892, 1 9 [Hebard Collection ex Bruner]. b. Teapa, Tabasco, Mex., (H. H. Smith) 1 cf [Biologia Collection in Br. Mus.]. b. Nemobius palustris Blatchley. 1896. Nemobius carolinus Scudder, Jn. N. Y. Ent. Soc, IV, p. 107. (In part.) [South Kent and Canaan, Conn.] 1900. Nemobius palustris Blatchley, Psyche, IX, p. 53. (Original descrip- tion.) [Northern Indiana. Tamarack swamps and cranberry bogs.] 1903. Nemobius palustris Blatchley, Orth. of Indiana, pp. 421, 427, 428. [Marshall, Fulton, and Starke Counties, Ind. In sphagnum mosses of swamps and bogs.] 1904. Nemobius palustris E. M. Walker, 34th Ann. Rept. Ent. Soc. Ont.,. No. 19, p. 97. [Algonquin Park, Ont. In sphagnum moss of floating cranberry bog.] 1904. Nemobius palustris E. M. Walker, Can Ent., XXXVI, pp. 182, 185. [Ragged Lake, Algonquin Park, Ont. In sphagnum swamp. Recorded material.] 1906. Nemobius palustris Morse, Psyche, XIII, p. 158. [Wellesley, Dover, and Natick, Mass. Sphagnum moss of bogs and wet meadows.] 1909. Nemobius palustris Davis, Jn. N. Y. Ent. Soc, XVII, p. 188. [Low- lands of Lakehurst and at Lake Hopatcong, N. J.] 1910. Nemobius palustris Rehn in Smith, Ann. Rept. N. J. State Mus., 1909, p. 192. [Stafford's Forge, N. J.] 1911. Nemobius palustris Walden, Bull. 16, State of Conn., St. Geol. and Nat. Hist. Surv., pp. 151, 152, 153. [Salisbury, Lyme, and New Haven, Conn. Swampy places, often in sphagnum moss.] This species, the smallest of the North American members of the genus, may be separated from the other North American species of Nemobius belonging to the subgenus Neonemobius by its very small size, slender build, and very dark solid coloration. The species resembles N. confusus closely in general appearance, but examination quickly shows that species to belong to the subgenus Eunemobius. The closest affinity is found in N. cubensis, from which species it differs in being smaller in the great majority of cases, of darker and more solid coloration, without tegminal markings of any kind. In the male the tegmina are almost always less broad, and in the female are usually more abbreviate. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 469 Described from an unspecified series of specimens from northern Indiana. Single type here designated: 9 ; Fulton County, Indiana. October 5, 1898. (Blatchley.) [Blatchley Collection]. Descriptioji of Type. — Size very small and form slender for the genus, head small, but full and rounded, wider than the cephalic width of the pronotum. Maxillary palpi of much the same form as in N.fasciatus, but with segments not as much produced. Eyes broad- ovate, not prominent. Pronotum^^ of much the same proportions as in fasciatus, but of smaller relative size to the rest of the body. Tegmina very shghtly more than half as long as the caudal femora; apex at humeral angle, very broadly and roundly obtuse-angulate; distal margin of dorsal field very slightly oblique, very broadly arcuato-truncate ; sutural margin passes into distal margin with a dis- tinct but broadly rounded angulation at an angle of slightly more than ninety degrees; intermediate channel not- conspicuously de- pressed and forming part of the dorsal field, this field unusually evenly rounded; longitudinal veins very conspicuous, cross-veinlets very few and extremely obscure. Wings absent. Ovipositor about two-thirds as long as caudal femora, distinctly though feebly arcuate; apex of same narrowly sublanceolate, with that portion formed by the dorsal valves armed, the upper margin serrulate, Fig. 25. — iV e m obi us palnstris. D o x- s a 1 view of type, female. (X 3.) Fig. 26. — Nemobiusjpalustris. Ovipositor. (Greatly magnified.) these serrulations regular, minute, sharp, as closely arranged as in N. cuhensis. Caudal femora with greatest (meso-cephalic) width contained slightl}^ more than three times in the length. Spines of caudal tibiae considerably more slender than in fasciatus and supplied with fewer hairs. ^^ The series of the present species before us shows that though the majority have the pronotum narrowing very slightly cephalad, some few have the cephalic and caudal width of the same subequal, while in other specimens the pronotum narrows decidedly cephalad. 470 PROCEEDINGS OF THE ACADEMY OF [June, A male in the Blatchley Collection, bearing the same data as the type, is here selected as the allotype. Description of Allotype. — Size smaller, proportions somewhat more slender than in the female. The tegmina are translucent and when in repose the dorsal fields are very narrowly hemi-ellipitical in outline. Wings absent. Measurements (in millimeters). Fulton County, Ind. Type. Allotype. Average of topotj'pes. 9 cf 9 9 d'd' ^ Length of body 6.2 5.8 6 . 1 (5 . 9-6 . 4) 5 . 7 (5 . 2-6 . 2) Length of pronotum 1.4 1.2 1.5(1.3-1.6) 1.3(1.-1.5) Caudal width of pro- notum 2. 1.9 2. (1.8-2.1) 1.9(1.6-2.1) Length of tegmen 2.5 4. 2.4(2.1-2.8) 3.9(3.8-4.) Length of caudal femur 4.8 4.6 4.6(4.-4.9) 4.6(4.2-5.) Greatest width of cau- dal femur 1.6 1.6 1 .7 (1 .4-1 .8) 1 .6 (1 .3-1 .7) Length of ovipositor 3.4 3.2(3.1-3.4) Ragged Lake, Algonquin Park, Natiek, Dover, Wilmington, Ont. Mass. Mass. N. C. ^9 cT 9 cf 9 cT' Length of body 6. 5.3 6.8 6.2 6.8 5.7 Length of pronotum 1. 1. 1.6 1.4 1.9 1.4 Caudal width of pro- notum 1.8 1.6 1.9 1.9 2.4 2. Length of tegmen 2.7 3.4 3.2 3.7 3.1 3.9 Length of caudal femur .. 4.1 3.9 4.6 4.8 5.4 4.8 Greatest width of cau- dal femur 1.3 1.4 1.7 1.7 2.1 1.8 Length of ovipositor 3.6 3.7 3.8 The specimens from Ontario are the smallest before us, while those from North Carolina are the largest. Additional material at hand bears out this evidence that the species increases in size very gradually from north to south over its range. Comparatively little variation IS shown, however, in the present species. Color Notes. — The types here described are of the same coloration as the majority of topotypic specimens before us. The head, pro- notum, and limbs are solid Vandyke brown. Maxillary palpi Vandyke brown with the exception of the terminal joint which is wholly clove 1913.] NATURAL SCIENCES OF PHILADELPHIA. 471 brown. Tegmina and dorsal surface of abdomen dark clove brown. Ovipositor dark Vandyke brown. The majority of specimens not from Indiana are, however, some- what differently colored. These specimens have the entire dorsal surface of the body dark clove brown, while underneath the usual coloration is raw umber. In such specmiens the maxillary palpi usually have the third joint a rather light brown, the penultimate joint considerably paler and the terminal joint wholly clove brown. Both males and females of the present species have a rather shiny appearance. Distribution. — The present species has been found on the Atlantic coast from Natick and Dover, Mass., to Wilmington and Lake Waccamaw, N. C, and inland has been taken as far north as Algon- quin Park, Ont., and as far west as Starke County, Ind. It is a swamp and bog inhabiting species, and is consequentlj^ very local in distribution. Biological Notes. — The present species is extremely secretive, living in the recesses of swamps and bogs, usually in and about sphagnum mosses. In such situations palustris may sometimes be found in very large numbers, but the peculiar habitat combined with the small size and sombre coloration of the insects themselves, explains their usual scarcity in collections. When disturbed, indi- viduals of })alustris leap about vigorouslj^ and then burrow into the sphagnum mosses or hide under roots or debris. Dr. Walker de- scribes the song of this species as "a continuous and rather feeble trill" and notes a similarity to that of carolimis. No macropterous specimens of the species have been taken, and it is our opinion that such do not occur, owing to the fact that in the present species the reduction of the tegmina has reached a rather advanced stage and is found to vary to an extremely small degree. Synonymy. — No synonyms of the present species have occurred, but AUard has unfortunately recorded small dark specimens of N. fasciatus as this species. Specimens Examined. — 56: 28 males, 28 females. Ragged Lake, Algonquin Park, Ontario, Aug. 18, 1903, (E. M. Walker) 2 cT, 3 ? [University of Toronto and Blatchley Collection]. Fulton County, Indiana, Oct. 5, 1898, (Blatchley) 2 d^, 2 9 . Type, Allotype, Paratvpes. [Blatchley Collection, U. S. N. M.]; Aug. 15, 1902, (Blatchlev) 5 d" , 6 9 [t'. S. X. M., A. N. S. P., Hebard Collection]. Natick, Massachusetts, Oct. 16, 1905, (from Morse) 3 9 [Hebard Collection]. Dover, Mass., Oct. 11, 1905, (from Morse) Sd", 1 9 [Hebard and Blatchley Collection]. New Haven, Connecticut, Aug. 18, 1910, (Walden) 1 cf', 1 9 [Hebard Col- lection]. 31 472 PROCEEDINGS OF THE ACADEMY OF [June, Lake Hopatcong, New Jersey, Aug. 30, 1908, (Davis) 1 c? [Davis Collection]. Lakehurst, N. J., Sept. 3, 14, 1907, (Davis) 2 d', 2 9 [Davis Collection]. Stafford's Forge, Ocean County, N. J., Sept. 16, 1905, (H.) 4 d". Stroudsburg, Pennsylvania, Sept., 1903, (H.) 2 9 . Tinicum Island, Pa., Sept. 19, 1908, (R. and H.) 1 9 . Washington, D. C, Sept. 23, 1911, (Davis) 1 d' [Davis Collection]. Fayetteville, North Carolina, Sept. 9, 1911, (R. and H.) 3 d^, 2 9. Lake Waccamaw, N. C, Sept. 8, 1911, (R. and H.) 1 d^. Wilmington, N. C, Sept. 8, 1911, (R. and H.) 3 cf, 5 9 . Nemobius palustris aurantius Rehn and Hebard. 1905. Nemobius carolirms (not of Scudder, 1877) Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1905, p. 801. [Thomasville, Ga. In beds of sphagnum.] 1911. Nemobius palustris aurantius Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1911, p. 597. (Original description.) [Same material as 1905.] 1912. Nemobius palustris aurantius Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1912, p. 109. (Single Type fixation.) Tlie present insect is in all probability a southern race of N. palus- tris, distinguished only from that species by its peculiar and striking coloration. Unsuccessful efforts have been made to obtain additional material from the region in which the type series was taken, and until this can be done it is, in our opinion, advisable to consider the present insect a geographic race, although it may eventually prove to be a mere color variety. Type: d^; Thomasville, Georgia. In sphagnum. December 6, 1903. (Hebard.) [Hebard Collection.] Description of Type. — The head, pronotum, and ventral surface of the insect is ochraceous-rufous, the limbs almost uniform ochraceous, and the tegmina and dorsal portion of the abdomen shining black. The maxillary palpi are pale yellowish, with the exception of the last segment, which is darker at the base, shading to clove brown in the apical half. The female allotype, here selected, bears the same data as the type and is in the same collection; it is slightly larger than the type, but of the same coloration. Measurements {in millimeters) . Thomasville, Ga. Type. Allotype. Average of paratypic series, cf 9 d^cf 9 9 Length of body 6.5 7. 6.2(6. -6.5) 6.2(5.9-6.7) Length of pronotum 1.2 1.5 1.1(1.-1.2) 1.4(1.3-1.5) Caudal width of pronotum 1.8 1.9 1.7(1.6-1.8) 1.9(1.8-2.1) Length of tegmina 3.8 3.2 3.9(3.8-4.) 2.6(2.1-3.) Length of caudal femur 4.2 4.8 4 . 3 (4 . 1-4 . 6) 4 . 6 (4 . 4-5 . ) Greatest width of caudal femur 1.4 1.8 1.6(1.4-1.8) 1.8(1.7-1.9) Length of ovipositor 3.5 3.6 (3.2-3.9) 1913.] NATURAL SCIENCES OF PHILADELPHIA. 473 Color Notes. — The contrasting and solid coloration given in the description is distinctive and varies but little in tone in the series. Distribution.- — The insect is known only from Thomasville, in southwestern Georgia. Biological Notes. — The series was taken near the town in a small area of moist ground where the pine woods gave way to the magnolias and beeches of the "branch" forest growth. All of the specimens were captured in sphagnum growing among the roots of these latter trees. The entire series is brachypterous. Specimens Examined. — 13: 5 males, 8 females. Thomasville, Ga., December 6, 1903, (H.) 5 cf, 8 Q. Type, allotype, paratypes. [Hebard and A. N. S. P. Collection.] Subgenus EUNEMOBIUS n. subgen. This distinctive subgenus includes two species and two geographic races from North America. Type of subgenus — Nemohius carolinus Scudder. Suhgeneric Description. — Size medium for the genus. Disto-- ventral spurs of caudal tibia equal in length. Proximal and distal internal spines of male specialized as described under Morphological Notes for the genus; other spines of caudal tibia below concave, with margins of this sulcation smooth in both sexes. Ovipositor very short, almost always less than two-thirds the length of the caudal femur, gently curved; apex with dorsal margin armed with heavy teeth, ventral margin armed with minute, widely spaced serrulations. Ventral segments of abdomen in male broadened, extending outward and upward on sides of abdomen above the normal dorsal segments, thus making the abdomen unusually broad and its entire dorsal surface concave. The present subgenus is widely separated from the other North American subgenera by the majority of the characters given above. Nemobius carolinus Scudder. 1876. Nemobius exiguus Provancher (not Acheta exigua Say, 1825), Nat. Can., VIII, p. 61. [Province of Quebec, Can.] 1877. Nemobius carolinus Scudder, Proc. Bost. Soc. Nat. Hist., XIX, p. 36. (Original description.) [North Carolina.] 1877. Ne7tiobius volaticus Scudder, Proc. Bost. Soc. Nat. Hist., XIX, p. 36. (In part.) (Description of 9 •) [Georgia.] 1877. Nemobius {Anaxipha) septentrionalis Provancher, Nat. Can., IX, p. 292. (Correction of name used in 1876.) 1877. Nemobius (Anexipha) septentrionalis Provancher, Faune Ent. Can., II, p. 24. (Description.) (Records of 1876.) 1887. Nemobius (Anexipha) septentrionalis Caulfield, Can. Rec. Sci., II, p. 393. [Montreal, Quebec and Rat Portage, Can.] 474 PROCEEDINGS OF THE ACADEMY OF [June, 1889. Nemobius vittatus Davis, Ent. Am., V, p. 79. (In part.) [Staten Island, N. Y. "Small form generally included."] 1892. Nemobius exiguus Blatchley (not Acheta exigua Say, 1825), Proc. Ind. Acad. Sci., 1891, p. 136. [Indiana. Very common.] 1893. Nemobius exiguus (?) Bruner (not Acheta exigua Say, 1825), Publ. Nebr. Acad. Sci., Ill, p. 32. [Eastern half of Nebraska. Not at all rare.] 1893. Nemobius volaticus (?) Bruner (In part of Scudder, 1877), Publ. Nebr. Acad. Sci., Ill, p. 32. [Timbered district of eastern Nebraska.] 1894. Nemobius affinis Beutenmiiller, Bull. Am. Mus. Nat. Hist., VI, pp. 249, 250, 267, PI. 5, fig. 11. (Description.) [New York, N. Y.] 1896. Nemobius carolinus Scudder, Jn. N. Y. Ent. Soc, IV, pp. 100, 107. (In part.) [Jackman and Norway, Me.; Blue Hill, Milton, and Adams, Mass.; Ithaca, N. Y.; Orange, N. J.; Maryland; Vigo County, Ind.; District of Columbia; Virginia; Lake Worth and Lake Okechobee, Fla.; New Orleans, La.; Texas; Lincoln, West Point, and South Bend, Nebr.] 1896. Nemobius cubensis Scudder, Jour. N. Y. Ent. Soc, IV, p. 105. (In part.) [Ogle County and Chicago, 111.; Norway, Me.; Charlotte Harbor and Indian River, Fla.] 1896. Nemobius carolinus Scudder, Psyche, VII, p. 433. (New key.) 1869. Nemobius carolinus Davis, Proc. Nat. Sci. Assn. Staten Id., V, p. 96. ■ (Notes, nomenclatural and on stridulation.) 1897. Nemobius carolinus Ball, Proc. Iowa Acad. Sci., IV, p. 236. Iowa. Common in woods. 1897. Nemobius carolinus Blatchley, Ins. in Gen. and Orth. Ind. in Particu- lar, p. 23. [Indiana.] 1898. Nemobius socius Lugger (not of Scudder, 1877), Orth. Minn., p. 263. [St. Paul, Minn.] 1898. Nemobius exiguus Lugger (not Acheta exigua Say, 1825), Orth. Minn., p. 268. [Minnesota.] 1900. Nemobius exiguus Blatchley, Psyche, IX, pp. 53, 54. (Description.) [Indiana. Half as common as N. fasciatus.] 1900. Nemobius carolinus Scudder, Psyche, IX, p. 104. [Connecticut. Not common in New England.] 1900. Nemobius cubensis Scudder (not of Saussure, 1874), Psyche, IX, p. 104. (Previous incorrect record.) 1900. Nemobius affinis Smith, Ins. of New Jersey, p. 164. [Staten Island, N. Y. Common.] 1902. Nemobius palustris E. M. Walker (not of Blatchley, 1900), 32d Ann. Rept. Ent. Soc. Ont., 1901, No. 19, p. 109. [Lake Simcoe, Sarnia, South- ampton and Owen Sound, Ont.] 1903. Nemobius exiguus Blatchley, Orth. of Indiana, pp. 420, 426. (General information.) 1904. Nemobius confusus E. M. Walker (not of Blatchlev, 1903), 34th Ann. Rept. Ent. Soc. Ont., 1903, No. 19, p. 97. (Wrong correction.) 1904. Nemobius angusticollis E. M. Walker, Can. Ent., XXXVI, pp. 182, 186. (Description.) [Toronto, de Grassi Point on Lake Simcoe and Severn River, Ont.] (Correction 1902 and 1904 records.) 1904. Nemobius carolinus Rehn, Ent. News, XV, p. 331. [Atsion and West Creek, N. J.] 1904. Nemobius exiguus Mead, Dept. Zool. Ent. Ohio State Univ., No. 19, p. 112. [Ohio.] 1905. Nemobius exiguus Isely, Trans. Kansas Acad. Sci., p. 248. [Fairview, Clearwater, and Wichita, Ivans. Under stones in wet places.] 1905. Nemobius carolinus Isely, Trans. Kansas Acad. Sci., p. 248. [Dale's Pond, near Wichita, Kan.] 1905. Nemobius exiguus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1904, p. 800. [Thomasville and Ocklockonee River (Thomas County), Ga.] 1905. Nemobius cubensis Rehn and Hebard (not of Saussure, 1874), Proc. Acad. Nat. Sci. Phila., 1904, p. 800. [Thomasville, Ga.] 1906. Nemobius carolinus Hart, Ent. News, XVII, p. 160. [Brazos River bottoms near College Station and Houston, Tex.] 1913.] NATURAL SCIENCES OF PHILADELPHIA. 475 1906. Nemohius palustris Morse, Psyche, XIII, p. 158. (In part.) (Scud- der's incorrect 1896 records given.) 1906. Nemohius janus Kirby, Sjmon. Catal. Orth., II, p. 19. (New name proposed.) 1907. Nernobius carolinus Hart, Bull. Illinois State Lab. Nat. Hist., VII, No. VII, p. 235. [Thompson Lake, lU. In damp woods.] 1908. {Nemobius) exiguus Brimley, Ent. News, XIX, p. 21. [Raleigh, N. C. Lowland and upland in damp places.] 1908. (Nemobius) carolinus Brimley, Ent. News, XIX, p. 21. [Raleigh, N. C] 1909. Nemobius Carolina Hebard, Ent. News, XX, p. 115. [Thomasville, Ga. In "branch."] 1909. Nemobius carolinus E. M. Walker, Can. Ent., XLI, pp. 144, 211. [Temagami District, Ont. Common.] 1910. N{emobius) ajfmis Insert by Smith in Rehn in Smith, Ann. Rept. N. J. State Mus., 1909, p. 192. (New Jersey notes.) 1910. N{emobius) carolinus Rehn et al. in Smith, Ann. Kept. N. J. State Mus., 1909, p. 192. [Mahwah, Ft. Lee, Cranford, Brookside, Lakehurst, Jamesburg and Stafford's Forge, N. J.; Staten Island, N. Y.] 1910. N{emobius) janus Rehn in Smith, Ann. Rept. N. J. State Mus., 1909, p. 192. [National Park, N. J.] 1911. Nemobius janus Allard, Ent. News, XXII, p. 37. [Washington, District of Columbia.] 1911. Nemobius aterrimus Rehn and Hebard (not of Scudder, 1896), Proc. Acad. Nat. Sci. Phila., 1910, p. 596. [Bainbridge. Ga.] 1911. Nemobius cubensis Rehn and Hebard (not of Saussure, 1874), Proc. Acad. Nat. Sci. Phila., 1910, p. 596. [Bainbridge, Ga.] 1911. Nemobius carolinus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1910, p. 647. [Balsam and Raleigh, N. C] 1911. Nemobius janus Allard, Ent. News, XXII, p. 157. (Additional notes.) 1911. N(emobius) carolinus Walden, Bull. 16, State Conn. State Geol. Nat. Hist. Surv., pp. 151, 152. [West Woodstock and Lyme, Conn. Not common. Sunny spots in open woods.] 1911. Nemobius carolinus Sherman and Brimley, Ent. News, XXII, p. 391. [Raleigh westward in North CaroUna.] 1912. N^emobius carolinus Washburn, Jn. Econ. Ent., V, No. 2, p. 117. [Fergus Falls, Minn.] 1912. Nemobius carolinus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1912, p. 273. [Homestead, Fla.] This species, type of the subgenus Eimemobius, is very different from N. confusus, the only other known North American species belonging to that subgenus. The present insect is almost invariably larger in size, has a more robust structure, less glossy appearance, different color pattern and usually paler coloration; it has also differently colored maxillary palpi and a very different ovipositor in the female. The coloration of the maxillary palpi is of the greatest value as a certain and ready character for the separation of the two species. Like N. cubensis, the present species has a widely distributed paler western race, but, unlike that species, the great majority of macrop- terous individuals are found in the western series. Based on an unspecified series from North Carolina. Single type here designated: d^; North Carolina. [Scudder Collection.] 476 PROCEEDINGS OF THE ACADEMY OF [June, We here describe a female taken at Lake Waccamaw, N. C, September 8, 1911, by Rehn and Hebard and in the Hebard Col- lection. Size medimii, form rather stout, head small but prominent and wider than cephalic width of pronotum, interantennal projection moderate. Eyes small but prominent, broad-ovate, proportionately broader than in A^ fasciatus, moderately protruding. Maxillary palpi of much the same form as in that species, but less attenuate. Pronotum with length contained nearly one and two-fifths times in width, narrowing very slightly cephalad, but more abruptly in cephalic third; with a median impressed line more noticeable in the cephalic portion. Tegmina^^ very slightly more than half as long as caudal Fig. 27. — Nemobiiis carolinus. Ovipositor. (Greatly magnified.) femur; longitudinal veins decided, not as conspicuous as in N. confusus, cross-veinlets very faint. Wings absent. Ovipositor slightly less than two-thirds the length of the caudal femur, distinctly though feebly arcuate; apex of same narrowly sublanceolate, with both dorsal and ventral margins armed, the former with heavy, rather widely separated teeth, the latter with minute very widely spaced serrulations. Limbs delicate, spines of caudal tibia? rather slender. We here describe a male bearing the same data as the female described above. Slightly smaller but proportionately broader, particularly in the abdominal portion. Tegmina transparent and delicate, very broad and completely enveloping all but the ventral surface of the pecu- liarly broadened abdomen; when in repose the dorsal fields are very flat and hemi-elliptical in outline, the lateral margins slightly bowed, subparallel. Wings absent. The ventral segments of the abdomen are extremely broadened and extend outward and upward on the sides of the abdomen above the normal dorsal segments, thus making the abdomen unusually broad and its entire dorsal surface deeply concave. 60 The form of the female tegmina is useless as a character in the present species owing to its variabiUty. We have before us brachypterous specimens ranging from those which have the distal margins of the dorsal field transverse, to those which have these margins decidedly oblique, the degree of angulation of the tegmina also varying considerably. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 477 Measurements {in millimeters) . North Lake Waccamaw, N. C. Carolina " < Type d' d' d" ? 9 Length of body 7.6 8 . 5 (8 . 2-8 . 8) 7 . 2 (6 . 3-8 . 4) Length of pronotum 2. 1.8(1.7-2. ) 1.9(1.6-2. ) Caudal width of pronotum . 2.7 2 . 7 (2 . 5-2 . 9) 2 . 4 (2 . -2 . 7) Length of tegmina 5.2 5 .4 (5 . -5 .8) 3 . (2.9-3.4) Length of wings Length of caudal femur 6.2 6 . 1 (5 . 9-6 . 4) 5 . 8 (5 . -6 . 4) Greatest width of caudal femur 2.3 2.2(2. -2.5) 2.1(1.9-2.2) Length of ovipositor ' 3.5 (2.6-3.8) Chestnut Hill, Pa. d^ 9 9 d' 9~^ Length of body 7.4(6.9-7.8) 7.2(6.4-7.8) 7.7 6.7 Length of pronotum 1.8(1.7-2.) 1.7(1.6-1.9) 1.6 1.7 Caudal width of prono- tum 2.6(2.1-2.8) 2.4(2.1-2.7) 2.6 2.7 Length of tegmina 5 . 1 (4 . 8-5 . 4) 3 . 5 (3 . 3-3 . 7) 5 . 4.4 Length of wings ' 9.2 10.4 Lengthof caudal femur . 5.5 (5.8-6. ) 5.4 (5. -6. ) 5.5 5.7 Greatest width of caudal femur 2. (1.9-2.1) 2.1(2.-2.3) 1.9 2. Length of ovipositor 3.5(3.2-3.8) 3.5 Averages in Extremes in female ovipositor length. tegminal length. De Grassi Point, Ont 3 . 7 (3 . 6-3 . 9) 3.5-3.7 Raleigh, N. C 3.2 (3. -3.4) 3. -3.4 Florence, S. C 3.5 (3.1-3.7) 3. -3.8 Thomasville, Ga 3.1(3. -3.2) 2.4-3. Beaumont, Tex 3 . 2 (3 . 1-3 . 4) 3.-3.2 The specimens before us indicate that there is a certain amount of decrease in both ovipositor and tegminal length in female specimens of the present species southward in its distribution. In size the species is somewhat variable over its entire range, the smallest specimens before us being found in series from Ontario, Pennsylvania, Georgia, and Florida. Macropterous specimens are exceedingly scarce in the north, almost all of the long-winged specimens before us are from Georgia and Florida. Color Notes. — The individuals here described are typical of the majority of the specimens at hand. Head very dark mummy brown, the faintest kind of longitudinal lineation barely suggested on the caudal portion of the occiput, which portion is slightly paler than 478 PEOCEEDINGS OF THE ACADEMY OF [Juiie, the rest of the head. Eyes very dark brown. Maxillary palpi cream color, the first three segments and base of the fourth much suffused with very dark brown, terminal segment cream color with the immediate apex very dark brown. Pronotum very dark mummy brown, shading to almost black on the lateral lobes. Tegmina of both sexes dark mummy brown, shining, transparent ; intermediate channel of the same color as the other portions. Limbs raw umber, above very slightly maculate with mummy brown. Under portions of limbs and body raw umber. Entire dorsal surface of abdomen of male (concealed) and concealed portion of same in female very dark brown, polished; exposed portion of same in female very dark mummy brown marked with four regular rows of small raw-umber spots. In the large series of specimens before us there are many some- what paler or darker than those here described. In the lighter specimens the dark lateral lobes of the pronotum are usually much more noticeable and the spots on the exposed dorsal surface of the abdomen in the female are more distinct. The pale color of the maxillary palpi is more yellowish. The darker specimens are often almost black on the dorsal surface, the ventral surface mummy brown. The spots on the exposed dorsal surface of the abdomen in the female are greatly reduced or wholly absent. The pale color of the maxillary palpi is almost always white with no yellowish suffusion. The markings of the maxillary palpi in this species varies from a type having the apical half of the ultimate joint darkened, to one which bears only a trace of this dark coloration at the extreme apex; this trace of darker coloration is never missing, however, and serves as a character to separate this species from A'', confusus. Distribution. — This insect is known from the province of Quebec to the most southern portion of the mainland of Florida, and west to the great plains and the mesquite region of Texas. Aside from N. fasciatus and its southern race, this species is the most abundant of the genus over almost its entire range. Only in extreme southern Florida is this not true, where N. cuhensis is the most plentiful of the species of the genus. The present insect may be found in a great variety of situations; it appears to prefer thick grasses growing along the edges of woodlands, the leaf-covered almost bare ground about streams and ponds in heavy woods, dark swamps, or marsh land under cat-tails. The song is a high-pitched and continuous trill, more pleasant to the ear than that of N. fasciatus. The majority of southern macropterous 1913.] NATURAL SCIENCES OF PHILADELPHIA. 479 specimens before us were taken when attracted to light at night. Specimens taken on the border of woodlands and in marshlands are^ as would be expected, usually pale, while those from the other situa- tions mentioned are almost always dark; no other differences of any kind exist between these. Biologicai Notes. — We find that the peculiarly developed abdomen of the males of the present species acts as a sounding-board for the tympanum. The tegmina fit tightly over the raised margins of the concave dorsal surface of the abdomen in this sex, their apex just covering and fitting closely to the distal extremity of the abdomen. Small, dark macropterous specimens of this species from the southern United States have been recorded as N. cuhensis owing to their great superficial resemblance to that species, which, however, belongs to a different subgenus having very different characters. Over the greater portion of the range of this species, macropterous individuals are exceedingly scarce. Synony?ny. — In 1776, Provancher recorded the present species as Nemohius exiguus. This was doubtless due to the fact that at that time Scudder had not properly placed Say's Acheta exigua,^^ which species is now known to belong to the genus Anaxipha, for Scudder had used the name Nemohius exiguus to record specimens which he realized later belonged in fact to N. fasciatus. In 1877, Scudder, described Nemohius volaticus, the males of which are macropterous specimens of N. cuhensis, the females macropterous specimens of N . carolinus, as an examination of the types clearly shows. In October of 1877, Provancher corrected his 1876 record, using Nemohius (Anaxipha) septentrionalis, as suggested by Scudder (who did not realize that his own species, described the previous April as Nemohius carolinus, was the same) but without describing the species ; the next month, however, he described the insect under that name. This name was again used by Caulfield in 1887, and first placed in the synonymy under the present species by E. M. Walker in 1909, though Davis recognized this fact as early as 1896. In 1890, Smith wrongly used the name Nemohius exiguus in giving Davis' correct record of Anaxipha exigua.^- In 1892, Blatchley used the name Nemohius exiguus, and in 1900, considering it a new species, he gave under the same name a full description, but, as he was unable to validate a name based originally " 1825. Jour. Acad. Nat. Sci. Phila., IV, p. .309. ^^ Am. Nat., XXII, p. 1148. 480 PROCEEDINGS OF THE ACADEMY OF [June, by Scudder on a misidentification, this name could not stand even if Blatchley's species were not an absolute synonym of Scudder's N. carolinus, as a comparison of a topotypic series of the former from Blatchley with the type of the latter shows us beyond the slightest doubt. Blatchley cannot in any way be criticised for believing the species undescribed, for Scudder, having examined specimens for him, identified individuals of Nemohius bruneri (described in the present paper and then known only by the latter from specimens bearing Bruner's invalid name Cyrtoxyphus (?) variegatus) as Nemohius carolinus, and advised him to describe specimens of true Nemohius carolinus, Scudder's own species, as new. This great carelessness resulted in Nemohius carolinus being recorded as Nemohius exiguus by Bruner (with a query) in 1893, Lugger in 1898, Blatchley in 1903, Mead in 1904, Isely and Rehn and Hebard in 1905, and Brimley in 1908. In 1893, Bruner recorded the species as N. volaticus with a query. In 1894, Beutenmiiller described Nemohius affinis, which species was two years later correctly placed in the synonymy under carolinus by Scudder, but which name was used by Smith in 1900 and 1910. In 1896 and 1900, Scudder recorded specimens of A^. cuhensis and N. palustris as the present species, specimens of which latter he also recorded as N. cuhensis. His discussion of Provancher's "Nemohius {Anaxipha) septentrionalis" in the former paper is incorrect. Lugger's 1898 record of A^. socius should probably apply to the present species. In 1902, E. M. Walker misidentified a large series of the present species from Ontario as N. palustris, and in 1904 believing these records wrong corrected the name to N. confusus. The same year he described Nemohius angusticollis, placing the specimens from which the above incorrect records were given in the typical series. This name is an absolute synonym of A^. carolinus, as was first stated by E. M. Walker himself in 1909. Rehn and Hebard, in 1905 and 1911, mistook macropterous specimens of this insect for N. cuhensis and so recorded them. Morse, in 1906, repeated Scudder's incorrect records of 1896 of the present species under A'^. palustris. The same year Kirby, realizing Blatchley's name A^. exiguus invalid, proposed as a new name Nemohius janus; this name was used by Rehn in 1910 and twice by AUard in 1911. Specimens Examined. — 418: 185 males, 225 females, and 8 nymphs. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 481 Chateau Richer, Ontario, Sept., 1904, (E. M. Walker) 1 cT, 1 9 [U. S. N. M. and University of Toronto], b. , ^ ttt o >- at i Owen Sound, Ont., Aug. 31, 1901, (E. M. Walker) 1 cf , 1 9 [U. S. ^. M. and University of Toronto], b. ,^ ,,„.,, x ,, o r^ r \ m a x> de Grassi Point, Ont., Sept. 14, 1901, (E. M. Walker) 1 cf, 2 9 [A. N. S. P. .and University of Toronto], b. r^ „ .• , u Franconia, New Hampshire, (Slosson) 1 9 [Scudder Collection], b. WoUaston, Massachusetts, Aug. 16, Sept. 1, 1895, 96, (F. H. Sprague) 1 cf , 1 9 [Scudder Collection], b. _, , , ^ „ ,■ i u South Natick, Mass., Oct. 22, 1905, (Morse) 1 9 [Blatchley Collection], b. Oxford, Mass., Oct., 1909, (Allard) 2 c?, 2 9 [U. S. N^^M.]. b Ramapo, New York, Oct. 1, 1905, (Davis) 2 cf , 1 9 [Davis Collection], b. Suffern, N. Y., Oct. 6, (Davis) 1 9 [Davis CoUectionj. b. Bronxville, N. Y., Aug. 23, 1908, (Davis) 1 c?, 1 9 [Davis Collection . b. New York, N. Y., Sept. 29, 1907, (Davis) 1 9 [Davis Collection], b. Staten Island, N. Y., Aug. 22, 26, Sept. 2, 5, 19, Oct. 3, 8, 1896-1906, (Davis) •9 cf, 8 9, 1 n. [Davis Collection]. Pair m. Springs, Long Island, N. Y., Sept. 21, 1910, (Davis) 1 9 [Davis Collection], b. Lakehurst, New Jersev, Oct. 6, 1906, (Davis) 1 9 [Davis Collection], -b. Cranford, N. J., Aug. 27, (Davis) 2 cT, 1 9 [Davis Collection], b Jamison City, Pennsylvania, Sept. 5, 1909, (Davis) 2 cT, 2 9 [Davis Col- lection], b. .. ^. r, T^l Harrisburg, Pa., Aug. 21, 1 9 [A. N. S. P.]. m. Cornwells, Pa., Oct., 1906, (R. and H.) 1 cT, 1 9. b^ ,„ ^ oq ^ on o Chestnut Hill, Pa., July 8, Aug. 7, Sept. 9, 19, 1904, 08, 11, (H.) 28 cf , 29 9 . ■^ WiSahickon Creek, White Marsh Valley, Pa., Sept. 20, 1903, (H.) 2 cf . 4 9 • b. Tinicum Island, Pa., Aug. 13, Sept. 9, 19, 1904, 08, 11, (R. and H.) 13 cf , Diamond Valley, Huntingdon County, Pa., Sept. 10, 1905, (R.) 1 9 . b Chestnut Ridge, Westmoreland County, Pa., (Brugger) 1 9 [A. N. S. 1 . |. b. Cabin John Run, Maryland, Sept. 19, 1911, (Davis) 14 d^, 11 9,1 n. [Davis Collection], b. „ , . ^ r^r n t.t n* i u Rummer's Island, Md., Oct., 1909, (Barber) 2 9 [U- S N. M.] b. Washington, D. C, Aug. 16, 29, Oct. 5, 16, Nov. 9, 1883-1909, (CaudeU et al.) .3 c?, 7 9 [U. S. N. M.]. 3 9 m. Alexandria County, Virginia, Sept., 1911, (Davis) 1 cf, 5 9 [Davis Collection], b. Dead Run, Va., Aug. 29, 1912, (Caudell) 2 <^ [U S N. M ] b. Rosslyn, Va., Sept. 26, Oct. 20, Nov. 3, 1901, (Caudel )3 d^, 1 9 U. S. N. M ]. b. Fairfax Countv, Va., Sept. 21, 1911, (Davis) 1 9 [Davis Collection] b. Falls Church, Va., Sept. 4, 1906, (Caudell) 7 cf . 9 9 , 4 n. [L. &. N M ]. b. North Carolina, 1 d^, 1 9- Type, Allotype [Scudder and Blatchley Col- *' Rareigh,^N. C, Aug. 4, 21, Sept. 5, 9, 15, 28, Oct. 10 12, 28,. 30, Nov. 2, 13, 19, .30, 1904-1908, (Brimley, Sherman, Bentley) 11 d^, 15 9 [Brimley, N. C. Dept. Agr. and Hebard Collection]. 2 cf m., 1 at light. Fayetteville, N. C, Sept. 9, 1911, (R. and H.) 1^, 1 9 • b Lake Waccamaw, N. C, Sept. 8, 1911, (R. and H.) 3 o^, 8 9 . b Blowing Rock, N. C, Aug. 29, 1902, (Sherman)! oMN.C. Dept. Agr.]. b. Newton, N. C, Aug., 1906, (Sherman) 1 oMN. C. Dept. Agr.]. m Black Mountains, N. C, Sept., (Beutenmiiller) 1 d^, 2 9 [Am. Mus. Nat. Hist.], b. Balsam, N. C, Oct. 7, 1905, (H.) 1 ^. 2 9 . b Highlands N. C, Sept., 1908, (Sherman) 4 d^, 1 9 [N. C. Dept. Agr.]. b. Florence, South Carohna, Sept. 6, 1911, (R. and H.) 10 cT 11 9 , 2 n. b. Swansea S. C, June, 1908, (C. C. Craft) 1 9 [U. S. N. M ] m. North end Sullivan Island, N. C, Sept. 5, 1911, (R^and H.) 19. b. Georgia 1 9 From tvpe series A'', volaticus Sc. [Blatchley Collection], m. Thompson's Mills, Ga., Oct., 1909, (Allard) 1 cf [U. S. N M ]. b. Brunswick, Ga., May 2, 1911, 1 9 [Collection State of Ga.]. m Bainbridge, Ga., June-Sept., 1909-11, (Bradley) 4 d^, 1 9 [Cornell Univ.]. m. 482 PROCEEDINGS OF THE ACADEMY OF [Juiie^ Thomasville, Ga., Jan. 1, Mar. 18, 21, 29, May 19, June 13, 15, 23, Nov. 23, Deo. 1, 11, 13, 14, 17, 18, 22, 1903-08, (H. and for H.) 21 d^, 30 9 . 1 c?, 6 9 m. Daytona, Florida, Sept. 16, 1911, (Englehardt) 1 cf , 1 9 [Bklyn. Jnst. A. and S.]. m. Indian River, Fla., (Pridday) 1 cf [Hebard Collection ex Brunerj. m. Lakeland, Fla., Nov. 10, 1911, (Davis) 1 9 [Davis Collection!, m. Sarasota, Fla., Jan. 31, Feb. 14, 23, 25. Mar. 3, 1911, (Blatchley) 2 d", 5:9 [Blatchley Collection], b., 1 9 1. teg. only. Charlotte Harbor, Fla., (Slosson) 1 o^ [Scudder Collection], m. Lake Worth, Fla., (Slosson) 1 9 [Scudder Collection], m. Biscayne Bay, Fla., (Slosson) 4 cf , 1 9 [Scudder Collection]. S d , I 9 ni. Homestead, Fla., Mar. 17-19, 1910, (H.) 1 cf . b.; Julv 10-12, 1912, (R.andH.) 1 d^, 1 9. b. Olivier, Louisiana, (E. S. G. Titus) 1 d" [U. S. N. M.]. b. Doucette, Texas, July 24, 1912, (H.) 1 o^. b. Beaumont, Tex., Julv 23, 1912, (H.) 3 d^, 6 9 . 1 9 m. College Station, Tex., Dec. 29, 1905, (Hart) 1 9 [111. State Lab. Nat. Hist.], b.. Houston, Tex., Jan. 5, 1906, (Hart) 1 9 [111. State Lab. Nat. Hist.], b. Columbus, Ohio, Oct. 2, 1903, (Mead) 1 cf, 1 9 [Ohio State Univ.]. b. Cedar Point, Ohio, Aug. 21, 1912, 3 cf , 3 9 [Ohio State Univ.]. Pair m. Sugar Grove, Ohio, Sept. 12, 1912, 1 cf , 1 9 [Ohio State Univ.]. b. Cincinnati, Ohio, Oct. 19, 1912, 1 9 [Ohio State Univ.] b. Kosciusko County, Indiana, Aug. 17, 1903, (Blatchley) 2 9 [A. N. S. P.]. b. Marion County, Ind., Oct. 30, 1904, (Blatchley) I d', 2 9 [U. S. N. M.]. b. Vigo County, Ind., Oct. 5, 1894, (Blatchley) 1 d^, 1 9 [U. S. N. M.]. b. Knox County, Ind., Nov. 5, 1903, (Blatchlev) 1 d" [U. S. N. M.]. b. Crawford County, Ind., Sept. 8, 1903, (Blatchley) 1 cf [A. N. S. P.]. b. Ogle County, Illinois, (Allen) 1 9 [Scudder Collection]. L. teg. only. Chicago, 111., (Palmer) 1 9 [Scudder Collection]. L. teg. only. Dallas County, Iowa, (J. A. Allen) 1 9 [Scudder Collection]. " m. West Point, Nebaska, Oct. 16, 1 cf [Hebard Collection ex Bruner]. b. Lincoln, Nebr., Sept., 1894, (Bruner) 2 9 [Hebard Collection ex Bruner]. 1 m. at light. South Bend, Nebr., Oct., 1889, 1 d", 1 9 [Hebard Collection ex Bruner]. b. Clearwater, Kansas, Aug., 1904, (Isely) 1 9 [U. S. N. M.]. b. Atchison, Kan., Aug. 1, 1904, (Iselv) 1 cf ]U. S. N. M.]. b. Fairview, Kan., Aug., 1904, (Isely) 2 d", 2 9 [U. S. N. M.]. b., 191. teg. only. Nemobius carolinus brevioaudus Bruner. 1904. Nemohius brevicaudus Bruner, Bull. 94, Agr. Exp. Sta. Colo. Agr. Coll., p. 57. (Original description.) [Fort Collins, Colo.] 1912. Nemohius brevicaudus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1912, p. 122. (Single type fixation.) This insect is known from the types only, which specimens show it to be very near N. carolinus. From that species this geographic race differs in being very pale in coloration, with the spots on the dorsal surface of the female abdomen greatly enlarged. The types are also as robust as the largest specimens of carolinus before us, while the ovipositor is very short. Type: 9; Fort Collins, Colorado. October 4, 1901. [Hebard Collection ex Bruner.] Description of Type.- — Size medium, form robust. Similar to N . carolinus except in the paler coloration, exaggerated color pattern 1913.] NATURAL SCIENCES OP PHILADELPHIA. 483 and in the ovipositor which is short (probably^^ similar to that of JV. caroUnus neomexicanus in normal specimens). We here describe the unique allotypic male which bears the same •data as the type. "Fig. 28. — Xemobius carolinus brevicaudus. Malformed ovipositor of type. (Greatly magnified.) Description of Allotype. — Similar to female in size and proportions. Differing from A^. carolinus in coloration and pattern as given in above description. Measurements {in mUlimeters) . Fort CoUins, Colo. Type Allotype 9 d^ 9. 8.2 1.8 1.8 2.4 2.5 3.2 4.6 5.6 5.8 1.9 2. 2.2 Length of body Length of pronotum Caudal width of pronotum Length of tegmina Length of caudal femur Greatest width of caudal femur Length of ovipositor As has been noted, the ovipositor in this specimen is malformed, the apex being misshapen as the figure shows. Color Notes. — General color wood brown washed with russet. Head with the faint occipital markings described under carolinus more pronounced and extending as far as the vertex, the lighter color wood brown, the darker wood brown washed with russet. Eyes clove brown. Maxillary palpi wood brown, the terminal portion of the last segment Vandyke brown. Pronotum with dorsal surface and lateral lobes wood brown, somewhat maculate with pale russet. Tegmina transparent wood brown. Dorsal surface of abdomen in male (concealed) and concealed portion of same in female vandyke brown; exposed portion of same in female with four rows of pale spots as in carolinus, but with these spots greatly enlarged, the narrow medio-longitudinal portion between the two median rows of spots ^' In this .specimen, the only known female, the ovipositor is clearly malformed as indicated in Fig. 28. 484 PROCEEDINGS OF THE ACADEMY OF [June^ Vandyke brown, the other narrow interstices between the spots, russet. Ovipositor burnt umber. Limbs and ventral surface of insect of general coloration. Distribution. — Though known only from Fort Collins, Colo., it is probable that this insect will be found rather widely distributed in favorable localities over the great plains. Specimens Examined. — 2: 1 male and 1 female. Fort Collins, Colo., October 4, 1901, 1 d^; 1 9 . Allotype, Type. [Hebard Collection ex Brunerl. Nemobius carolinus neomexicanus Scudder. 1896. Nemobius neomexicanus Scudder, Jour. N. Y. Ent. Soc, IV, pp. 100, 104. (Original description.) (In part.) [Las Cruces, New Mex. Los Angeles (County), Cal.; Comondu, Lower Cal.] 1896. Nemobius toltecus Scudder (not of Saussure, 1859), Jour. N. Y. Ent. Soc, lY, pp. 101, 106. [Orizaba and Jalapa, Vera Cruz, Mex.; Tepic,, (Tepic), Mex.] 1896. Nemobius neomexicanus Scudder, Psyche, VII, p. 432. (New key.) 1896. Nemobius toltecus Scudder (not of Saussure, 1859), Psyche, VII, p. 433. (New key.) 1896. Nemobius neomexicanus Cockerell, Ent. News, VII, p. 297. [Las Cruces, Mesilla and Colorado, New Mexico.] 1897. Nemobius neomexicanus Saussure, Biol. Cent. Amer., Orth., II, p. 223. [Durango and (or) Sinaloa, Mex.; Teapa, Tabasco, Mex.] 1897. Nemobius denticulatus Saussure, Biol. Cent. Amer., Orth., II, pi. II,, fig. 25. (Figure name only.) 1902. Nemobius neomexicanus Scudder and Cockerell, Proc. Davenp. Acad. Sci., IX, p. .59. [Las Cruces and Mesilla, New Mex. Common. At- tracted to light.] 1904. Nemobius neomexicanus Rehn, Proc. Acad. Nat. Sci. Phila., 1904,. p. 575. [Florence, Ariz.] 1904. Nemobius neomexicanus Caudell, Mus. Bklyn. Inst. Arts and Sciences,, I, No. 4, p. 115. [Esperanza Ranch, near Brownsville, and Brownsville,. Tex.] 1907. Nemobius neomexicanus Rehn, Proc. Acad. Nat. Sci. Phila., 1907,. p. 65. [Douglas, Ariz.] 1907. Nemobius neomexicanus Rehn, Ent. News, XVIII, p. 212. [Browns- ville, Tex.] 1907. Nemobius neomexicanus Rehn in Snow, Trans. Kansas Acad. Sci., XX, pt. II, p. 39. [San Bernardino Ranch, Ariz.] 1908. Nemobius neomexicanus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1908, p. 399. [Tucson and Yuma, Ariz.] 1908. Nemobius neomexicanus Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1909, p. 172. [Alamogordo, New Mex.] The present geographic race differs from typical Nemobhis carolinus in being usually of paler coloration over the arid or semiarid portions of its distribution, while in these specimens the great majority are somewhat more slender. The series from the state of Vera Cruz, Mex,, differs from carolinus in being more russet in general coloration, the dorsal abdominal spots of the females being, moreover, very large. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 485 In all of these series the ovipositor is almost invariably considerably shorter than in carolinus and consequently shows even less curv- ature. Based on a series of five specimens of both sexes from four localities. "^^ Single type here designated: 9 ; Las Cruces, New Mexico^ (Cockerell) [Hebard Collection ex Bruner]. Description of Type.— Size, form, and structure much as in N. carolinus. Tegmina nearly as long as caudal femur. Wings more Fig. 29. — Nernobms carolinus neomexi- canus. Ovipositor of Type. (Greatly magnified.) Fig. 30. — A^emobius carolinus neomexi- canus. Ovipositor of specimen from Vera Cruz, Mexico. (Greatly mag- nified.) than twice as long as tegmina. Ovipositor a little more than half the length of the caudal femur, very feebly arcuate, almost straight,, distal third narrowly sublanceolate and armed as in carolinus. The allotype here selected bears the same data as the type and is in the Scudder Collection. Description of Allotype. — Size smaller, but very similar to female in general proportions. Tegmina of same character and abdomen likewise peculiarly developed as in carolinus. Measurements {in millimeters) . Las Cruces, N. M. Shovel Mtn., Tex.. Type Allotype 9 cf 9 c^ Length of body 7.7 7. 8.3 6.9 Length of pronotum 1.6 1.5 1.4 1.4 Caudal width of pronotum 2.3 2. 2.3 2.3 Length of tegmina 4.8 4.8 4.2 4.5 Length of wings 11. 10.8 9.7 9.8 Length of caudal femur 5.1 4.8 4.5 4.7 Greatest width of caudal femur 1.7 1.7 1.7 1.7 Length of ovipositor 2.7 2.4 ^ One specimen, a female from Sierra el Taste, Lower California, does not belong to this geographic race, but to N. cubensis mormonius. 486 PROCEEDINGS OF THE ACADEMY OF [June, Brownsville, Tex. (Extremes.) 9 9 ' d^d" ~^ Length of body 7.-8. 6.3-8.3 Length of pronotum 1.4-1.6 1.3-1.7 Caudal width of pro- notum 2.4-2.1 2.3-2.7 Length of tegmina 4.2-4.8 4.1-5.2 Length of wings 10. -10.9 9.9-11.4 Length of caudal femur 4.8-5. 4.7-5.2 ■Greatest width of caudal ■ femur 1.7-1.8 1.7-1.9 Length of ovipositor 2.9- 3. Alamogordo, N. Mex. 9 7.1 1.7 2.1 3.4 2.1 2.8 7.6 1.7 2.4 5.1 "5^1 1.8 Co., Cal. Length of body 8.4 Length of pronotum. 1.8 •Caudal width of prono- tum 2.6 Length of tegmina 4.8 Length of wings 11.3 Length of caudal femur . 5 . 8 •Greatest width of caudal femur 1 .9 Length of ovipositor 2 . 9 1 Orizaba, V. C, Mex. (Extremes.) Motzc V. C, 9 7.8 1.8 »rongo, , Mex. 9 9 5.8-7.3 1.6-1.8 5.2-8.1 1.2-1.9 7.2 1.5 2.1-2.3 2.7-3. 2. -2.3 3.6-5.4 2.3 2.7 v." 2.5 4.4 4.8-5.4 4.6-5.7 5. 1.8-2.1 2.8-3. 1.6-2.1 1.9 3.1 1.9 Extremes in Ovipositor Length. Columbus, Tex 2.9-3.3 Carrizo Springs, Tex 2 . 5-2 . 8 Yuma, Ariz • 2 . 9-3 . 1 Comondu, L. Cal 2.6-2.9 Trinidad 2.8 Costa Rica. 3 The considerable variation in the present insect does not seem to be affected by distribution, the extremes of the species before us being found in both series from Brownsville, Tex., and Orizaba, Mex. The greatest ovipositor length is seen to about equal the minimum found in N. carolinus, though rare exceptions are found in that species where the length of the ovipositor is less than even the average of the present race. Color Notes. — We here describe the coloration of the type. Head, pronotum and tegmina mummy brown shading to raw umber on 1913.] NATURAL SCIENCES OF PHILADELPHIA. 487 the limbs and with intermediate channel of tegmina and exposed portions of wings tawny olive. Under portions of insect pale tawny olive. Maxillary palpi yellowish, the extreme apex of the terminal segment very narrowly marked with very dark brown. The majority of the specimens from the arid and semiarid portions of the range of the insect are somewhat darker than the type, the general color being Vandyke brown, and in some of these individuals the occipital markings described under carolinus are faintly apparent. There are very few brachypterous females from this portion of the distribu- tion of the race, and all of these but one are in a poor state of preservation. The specimen from Brownsville, Tex., in good condi- tion, shows the color pattern of the exposed dorsal surface of the abdomen similar to that of typical carolinus. The majority of the specimens from the state of Vera Cruz resemble carolinus closely in coloration and color pattern, but are almost without exception more russet. The few specimens from that region, which differ from these in coloration, are colored much as in typical carolinus neomexicanus, and all have the ovipositor as is typical in that race. With scarcely an exception, the limbs of the specimens before us are immaculate. The maxillary palpi have the dark marking of the apex of the ultimate joint invariably exceedingly narrow. Distribution. — The present insect is known from the more arid regions of the western United States, southward to the state of Vera Cruz, Mex., and Costa Rica. The most northern localities at which it has been taken are Shovel Mountain, Tex., Jemez Hot Springs"^, New Mex., and Florence, Ariz. From Shovel Mountain, Tex., it is found south to the Gulf coast and is checked in its eastern distribu- tion by this boundary. The most southern locality is Costa Rica, while it appears to be only limited in its western distribution by the Pacific coast. Biological Notes. — All we know of the life of the present race has been learned from material taken in the southwestern United States. There the species appears to enjoy a wide but rather local distribution. It was very seldom found by us in any numbers, and occasional macropterous specimens attracted to light were the usual indication of the presence of the species. We have found it but once in the brachypterous form, then .it was not extremely scarce, but very difficult to capture, in low irrigated grass near the station at " These specimens are intermediates between this race and typical N. carolinus. 32 488 PROCEEDINGS OF THE ACADEMY OF [June, Albuquerque, New Mex. Occasional trills from this grass plot indi- cated the presence of the insects in the afternoon, specimens could doubtless have been taken there with ease after nightfall. The series before us suggests that the species is far more plentiful in the region discussed during June than later in the season. The same conditions which govern the distribution of .V. cubensis mor- monius are applicable to the present species as well. Synonymy. — In 1896, Scudder incorrectly recorded the series of specimens of the present insect from the state of Vera Cruz, Mex., as N. toltecus, in the same paper in which he described neomexicanus. That year that name was again used by him for the same specimens in his key in Psyche. Saussure, in 1897, finding that a species which he was describing for the Biologia was the same as the present insect, corrected the name in the text, but accidentally left his name Nemobius denticulatus as the name for the figure. Specimens Examined. — 121: 61 males, 59 females, and 1 nymph. Shovel Mountain, Texas, July 9, 10, Sept. 5, Oct. 4, 1901, (Schaupp) 3 d", 3 9 [A. N. S. P.]. m. Columbus, Tex., Sept. 7, 2 9 [U. S. N. M.]. m. Victoria, Tex., (W. E. Hinds) 1 c? [U. S. N. M.]. m. Carrizo Springs, Tex., Oct., 1884, (Wadgymar) 2 9 [Hebard Collection ex Bruner]. m.. San Diego, Tex., (Schwarz) 1 & [U. S. N. M.]. m. Brownsville, Tex., June, 1904, (Barber) 3 cf , 2 9 ; June, (Snow) 1 cf, 2 9 ; 6 cf , 4 9 [Bklyn. Inst. A. and S., A. N. S. P., U. S. N. M.]. m.: Apr. 11, (Dohr- ner) 1 9 ; June 23, 1908, Nov. 21, Dec. 20, 1910 (Hart) 17 cf , 12 9 [HI. State Lab. Nat. Hist.]. All but 1 9 , m. Los Borregos, Brownsville, Tex., June 5, 6, 1904, (Barber) 4 cf , 2 9 [U. S. N. M.]. m. Esperanza Ranch, Brownsville, Tex., (Schaeffer) 3 cf [Bklyn. Inst. A. and S.]. m. Jemez Hot Springs, New Mexico, Sept. 7, 1911, (Woodgate) 2 9 [Hebard Collection], b. Colorado, N. M., (CockereU) 2 cf , 2 9 [Scudder Collection]. Alamogordo, N. M., July 16, 1907, (H.) 1 cf, 1 9, 1 n. b. Las Cruces, N. M., (CockereU) 1 cf, 1 9. Allotype, Type [Scudder and Hebard Collection ex Bruner]. m. Mesilla, N. M., (Cockerel!) 1 cf , 1 9 [Scudder and U. S. N.M. Collection], m. Florence, Arizona, July, 1903, (Biederman) 1 9 [A. N. S. P.]. m. Tucson, Ariz., July 23, 1907, (R. and H.) 1 9 . m. Yuma, Ariz., July 28, 1907, Oct. 1, 1910, (R. and H.) 2 cf , 4 9 . m. Los Angeles County, California, July, (Coquillett) 2 9 [Paratype in Hebard Collection ex Bruner; 1 9 , U. S. N. M.]. m. Comondu, Lower California, Mar., 1889, (C. D. Haines) 3 9 [Paratype in Scudder Collection; 2 9 , Hebard Collection ex Bruner]. m. San Jose del Cabo, L. Cal., 1 cf , 1 9 [Hebard Collection ex Bruner]. m. Venis Mecas,^^ Mexico, Jan. 6, 1878, (Palmer) 1 d" [Scudder Collection], b. Monterey, Nuevo Leon, Mex., July 3, 1908, 1 9 [HI. State Lab. Nat. Hist.], m. Durango or Sinaloa, Mex., (Forrer) 1 cf , 1 9 [Br. Mus.]. b. «5 We are at present unable to find the exact location of this place. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 489 Tepic, Mex., 1 cT [Hebard Collection ex Bruner]. b. Jalapa, Vera Cruz, Mex., 1 9 [Hebard Collection ex Bruner]. b. Medellin, V. C, Mex., 1 9 [Hebard Collection ex Bruner]. m. Presidio, V. C, Mex., (Forrer) 1 9 [Br. Mus.]. b. Orizaba, V. C, Mex., Jan., 1892, 7 cf , 4 9 [Hebard Collection ex Bruner]. b. Motzorongo, V. C, Max., Feb., 1892, 2 d^, 1 9 [Hebard Collection ex Bruner]. b. San Rafael, V. C, Mex., (Townsend) 1 9 [Hebard Collection ex Bruner]. m. Teapa, Tabasco, Mex., March, (H. H. Smith) 2 ^ [Br. Mus.]. b. Costa Rica, (Carriker) 1 9 [Hebard Collection], m. Nemobius confusus Blatchley. 1903. Nemobius confu&us Blatchley, Orth. of Indiana, pp. 421, 428, 429. (In part.) (Original description of 9 •) [Tippecanoe Lake and Posey County, Ind. In low damp woods.] 1908. Nemobius confusus Brimley, Ent. News, XIX, p. 21. [Raleigh, N, C. Damp places near water.] 1911. Nemobius confusus Sherman and Brimley, Ent. News, XXII, p. 391. [Raleigh, N. C] Tills species, wliicli also belongs to the subgenus Eunemobius, is one of the most distinctive of the North American species of the genus Ne7nohiiis. In the original description the supposed male of the present species was in fact N. maculatus, and in consequence that composite description is highly misleading. There is a superficial resemblance of this species to N. palustris, but examination shows that it belongs to a different subgenus, since in cojifusus the disto- ventral spurs of the caudal tibiae are equal in length and the ovi- positor is of the shorter type, armed at the apex above with heavy teeth, below with widely spaced serrations. The bone-white maxillary palpi in both sexes distinguish the present species from all other North American members of the genus. The nearest relationship is found in A^. caroUnus, from which species confusus differs widely in the different color pattern, much darker general coloration and ovipositor which is different in shape and armament. Based on a series of specimens from two localities in Indiana. Single type here designated: 9 ; Tippecanoe Lake, Kosciusko County, Indiana, August 26, 1902. (Blatchley) [Blatchley Col- lection]. Description of Type. — Size small, form graceful; head small, not as full and with interantennal projection not as prominent as in carolinus, wider than the cephalic width of the pronotum. Maxillary palpi sunilar to those of carolinus. Eyes broad ovate, not at all prominent. Pronotum with proportions much as in carolinus, narrowing slightly cephalad and with a medio-longitudinal impressed line more noticeable in the cephalic portion. Tegmina half as long 490 PROCEEDINGS OF THE ACADEMY OF [June, as caudal femora, resembling those of N. palustris excepting that in the present species the humeral vein is more conspicuous and the tegmina are divided by this vein into less rounded dorsal (here including the intermediate channel) and more nearly perpendicular lateral fields. Wings absent. Ovipositor slightly more than half as long as the caudal femora, feebly arcuate, distal third of same heavy, lanceolate; with both dorsal and ventral margins of apex armed, the former with rather widely spaced, very heavy, and some- what recurved teeth, the latter with' widely spaced serrulations. The limbs are somewhat more delicate than in carolinus ana, the spines of the caudal femora somewhat more slender than in that species. Fig. .31. — Xew.obius confusus. Ovipositor of t^-pe. (Greatly magnified.) The allotypic male, here selected, taken at Dead Run, Virginia, August 29, 1912, by Caudell and in the United States National Museum, furnishes the additional data given below. Description of Allotype. — Smaller but very similar to female in general appearance. Tegmina transparent and very delicate; of same character as in carolinus but not as much wider than abdomen as in that species, when in repose the lateral margins of the dorsal field are more nearly straight, subparallel. Wings absent. Measurements {in millimeters) . Tippecanoe Lake, Ind. Dead Run, Va. Type Allotype Average of series. 9 9 d' cr^d^ 9 Length of body 7. 6.8 6.3 6.2(6.-6.6) 7.3 Length of pronotum 1.9 1.9 1.4 1.5(1.4-1.7) 1.7 Caudal width of prono- tum 2.2 2.3 2. 1.9(1.8-2.1) 2.1 Length of tegmina 3. 2.9 4. 4.1(3.8-4.8) 3.1 Length of caudal femur 5.3 5 . 4 . 7 4 . 7 (4 . 6-4 . 9) 5.3 Greatest width of caudal femur 2. 1.9 1.8 1.7(1.6-1.9) 1.8 Length of ovipo.sitor 2.9 2.9 2.6 1913.] NATURAL SCIENCES OF PHILADELPHIA. 491 Cabin John Run, Md. Average of series. d'd' 9 9 Length of body 6.4(5.7-7. ) 6.7(6.6-6.9) Length of pronotum 1.6 (1.4-1.7) 1.7 (1.4-1.8) Caudal width of pronotum 2 . (1.9-2.1) 2.1(1.9-2.3) Length of tegmma 4.2 (4. -4.4) 2.9 (2.8-3. ) Length of caudal femur 4 . 4 (4 . 1-4 . 7) 4 . 9 (4 . 8-5 . 3) Greatest width of caudal femur 1 .7 (1 .6-1 .8) 1 .9 (1 .8-2 . ) Length of ovipositor 2.7 (2.5-2.8) The extremes in size found in the material before us are given in the above measurements. Although the series are not large, it is possible to see that there is but little variation in the species. The eastern specimens average somewhat .smaller than those from Indiana. In the original description the measurements for the male sex are, as has been stated, taken from a specimen of .V. maculatus, while those of the female are, unfortunately, in almost every case exaggerated. Color Notes. — All of the specimens before us are of very much the same coloration. Head, pronotum, and tegmina shining piceous, the latter transparent in the male, nearly transparent in the female. Maxillary palpi with proximal segments piceous, last two segments white and very striking. Dorsal surface of abdomen dark bistre; in the specimens of somewhat lighter coloration, bistre with the margins of the segments darker. Limbs and ventral surface of body immaculate raw umber; in dark specimens mummy brown. Both males and females of the present species have a very shiny appearance. Distribution. — The present species has been taken on the Atlantic coast from a few miles northwest of Washington, D. C, to Raleigh, N. C. The only other known point of distribution is the type locality in northern Indiana. Biological Notes. — Among the secretive species of Nemobius, this species is at present one of the least known. We learn from Blatchley that it was first found, "quite common in some low, damp woods bordering Tippecanoe Lake .... living among the fallen leaves and beneath small chunks and chips." No macropterous specimens are known, but it is probable that a long-winged form of the present species exists. Synony^ny. — It is strange that although Blatchley found this insect plentiful when the type series was taken, he apparently secured no males, but having taken males of N. maculatus in the same locality, unfortunately supposed these to be males of the new species. 492 PROCEEDINGS OF THE ACADEMY OF [June, The result is that the original description is a composite of the two species. We have at present before us two males and two females of the type series which bear this out fully, as the males are both maculatus. E. M. Walker has noted that Professor Morse pronounced the males of Blatchley's confusus a different species from the females, but that writer incorrectly surmised that the females were probably synonymous with N. carolinus Scudder. Specimens Exmnined. — 32: 8 males, 22 femaleS; and 2 nymphs. Cabin John Run, Maryland, Sept. 19, 1911, (Davis) 3 cf , 3 9 [Davis Col- lection]. Plummer's Island, Md., Sept. 4, 11, 1902, 03, (Barber) 2 9 [U. S. N. M.] Dead Run, Virginia. Aug. 29, 1912, (Caudell) 4 cf, 2 9 , 2 9 n., including cf Allotype [U. S. N. M.]'. Falls Church, Va., Sept. 2, 4, 1906, (Caudell, Banks) 1 cf , 6 9 [U. S. N. M.] Alexandria County, Va., Sept., 1911, (Davis) 4 9 [Davis Collection]. Raleigh, North CaroHna, Sept. 25, 1907, (Brimley) 2 9 [Brimlev Collection, U. S. N. M.]. i^ > > J I . Tippecanoe Lake, Indiana, Aug. 26, 1902 (Blatchley) 2 9 . Type and Para- type [Blatchley Collection]. Kosciusko County, Ind., Oct. 29, 1902, (Blatchley) 1 9. Paratvpe [U. S. N. M.j. 1913.] NATURAL SCIENCES OF PHILADELPHIA, 493 TWO COLLECTIONS OF PLEISTOCENE FOSSILS FKOM THE ISTHMUS OF PANAMA. BY AMOS P. BROWN AND HENRY A, PILSBRY. The two collections of fossils treated of in this paper were briefly alluded to in our second paper on the Gatun Formation,^ issued in January of this year. They were collected by Professor W. B. Scott, 1911, with the assistance of Mr. D. F. Macdonald, geologist of the Isthmian Canal Commission. As noted in our former paper, they came from two localities near the north end of the canal. Collection 1. — From the oyster-shell bearing layers in the Black Swamp near Mount Hope {Monkey Hill). — The top of these beds is some four feet above the present sea level and they are encountered in digging for sewers in the town of Colon. They are also known from Toro Point, across the bay from Colon. The material consists largely of coral mud, with corals and coralline fragments and many molluscan remains mixed with more or less silt containing vegetable matter. It was evidently shipped to us just as it came from the excavations, and contained the small species as they were imbedded in the mud of the sea bottom. No volcanic ash was detected in this material. While the species represented are almost all recent, some of them may be extinct, and at any rate have not yet been found in the living state. In a paper published in 1912, Dr. DalP has described four of these found in our material. Besides these four described by Dall, we now add three additional new species ; and a number of others were among the specimens in the collection, but not in sufficiently good form for description. We have found some of these described new species in collections of recent shells in the A. N. S. P. collection, and it may be that none of these new species will be found to be really extinct when the molluscan fauna of that part of the Caribbean is fully known. The fauna of these beds (which Professor Scott has named the Mount Hope Formation) numbers in this collection 69 named species of Gastropods, with 3 additional species named only as to genus; 45 named species of Pelecypods, with 3 additional species named as to genus; 2 Scaphopods; 6 species of corals and one barnacle. 1 Fauna of the Gatun Formation, Isthmus of Panama, II. Froc. A. X. S. P., 1912, pp. .500-519. - New Species of Fossil Shells from Panama and Costa Rica, by W. H. Dall, SmUhxonian Misc. Coll., vol. 59, No. 2, 1912. 494 PROCEEDINGS OF THE ACADEMY OF [July, Collection 2. From the oyster-shell areas in the black, unconsolidated mud, uncomjormable on the Gatun Formation at the lower (north) end of the Gatun Locks. — This deposit of mud extends from a few feet below sea level to about 10 feet above it at this point. The black character of the deposit and the finding of definite vegetable remains in it, coupled with the observation that the oysters grew attached to mangroves or similar plants, shows that this was a deposit accumu- lated at the head of a bay or in an estuary. From the clean condition in which this material reached us, it seems likely that this collection was the result of the screening of the discharge from a suction dredge. This would also account for the absence of all small specimens from the collection. The species present indicate shallow, probably brackish, water conditions. The most notable species is the oyster (evidently growing attached to plants) and the great number of Congeria shells. The oyster shells are often seen to be covered with barnacles. Besides the one species of barnacle, there were three species of Gastropods and five species of Pelecypods. One of the Gastropods, Neritina virginea Lam., has the color pattern of the shell beautifully preserved. This deposit is probably more recent than that at Mount Hope, but is probably, like it. Pleistocene. We are indebted to Mr. J. B. Henderson, of Washington, for working over and determining a large part of the species listed below. List of Species from the Oyster-shell Layers from the Black Swamp near Mount Hope. — Collection L Balanus eburneus Gould. Tornatina canalicidata (Say). R.^ Cylichnella bidentata (Orb.). Atys Sander soni Dall. Bullaria occidentalis (A. Ad.). C. Haminea canalis Dall. Haminea antillarum (Orb.). R. Terebra spei n. sp. Conus proteus Hwass. R. Drillia leucocyma Dall. Drillia ostrearum Stearns. Drillia harfordiana (Reeve), var. colonensis n. v. R. Clathurella jewettii Stearns. R. Cythara balteata (Reeve). Cythara biconica (C. B. Ad.). C. Marinula colonia Dall. R. OUvella myrmecoon Dall. C. ' The abundance or rarity of the species is indicated by the letters R. (rare) nd C. (common). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 495 Marginella cincta Kien. C. Margi7iella pallida (L.). R. Marginella minuta Pfr. Voluta alfaroi Dall. R. Fasciolaria sp. R. Specimen too young to determine. Latirus cingulifera (Lam.). R. Phos intricatus Dall. R. Engina turbinella (Kien.). R. Nassa vibex Say. Columbella mercatoria (L.). Anachis avara (Say). R. Anachis sa7nanensis Dall. C. Anachis pulchfUa (Kien.). R. Aspella scalawides (Blainv.). R. Strombus bitiiberculatus Lam. Strombus pugilis L. Trivia pediculus (L.). R. Murex rufus Lam. R. Murex pomum Gmel. Murex riodatus Reeve. C. Urosalpinx sp. R. Eulinia bifasciata (Orb.). R. Cymatium vcspaceum (Lam.). R. Cymatium tuberosum (Lam.). R. Cerithiopsis sp. R. Bittium varium Pfr. C. Cerithium literatum (Born.). R. €erithium algicola C. B. Ad. C. Cerithium medium Dall. R. Cerithium variabile C. B. Ad. Cerithidea varicosa Sby. R. Modulus modulus (L.). C. Modulus catenulatus Phil. R. Littorina angulifera Lam. R. Vermetus nigricans Phil.(?). R. Alabina cerithioides Dall. Alaba tervaricosa Ad. R. Rissoina Icevigata C. B. Ad. var. browniana Orb. Rissoina striatocostata Orb. R. Rissoina cancellata Phil. R. Rissoina elegantissima Orb. R. Crepidula convexa Say. C. Crepidula plana Say. R. Calyptrcea candeana Orb. C. Natica pusilla Say. R. Sigaretus perspectivus Say. R. Phasianella pulchella C. B. Ad. C. Turbo crenidatus Gmel. R. Astralium brevispina (Lam.). R. Astralium tuberosum (Phil.) (?). 496 PROCEEDINGS OF THE ACADEMY OF [Julv, Tegula fasciata (Born.). Fissuridea alternata (Say). Suhemarginula emarginata (Blainv.). Suhemarg inula rollandii (Fischer). Acmcea punctulata (Gmel.). Neritina viridis Lam. C. Tonicia schrammi Shuttl. R. Dentalium callithrix Dall. C. Cadulus vaughani Dall. C. Leda vulgaris n. sp. C. Leda acuta Conr. R. Yoldia perprotrada Dall. C. Area unihonata Lam. R. Area imhrieata Brug. R. Area antiquata L. C. Area deshayesi Hanley. C. Area eampeachiensis Dillw. R. Area adamsi Smith. Area oeeidentalis Phil. R. Area retieulata Gmel. R. Seapharea pittieri Dall. C. Byssoarca fusea Brug. C. Melina ephippium (L.). C. Ostrea virginica Gmel. C. Peeten ziczac (L.). C. Pecten exasperatus Sowb. C. Peeten gihbus (L.). Peeten gihbus disloeatus Say. R. Mytilus exustus Lam. R. Chama sp. R. Chama sp. C. Crassinella guadalupensis (Orb.). R. Diplodonta mediamericana n. sp. R. Diplodonta soror C. B. Ad. C. Codakia orbicidata (Mont.). R. Codakia antillarum Reeve. R. Lucina chrysostoma Phil. C. Phaeoides lintea (Conr.). R. Phaeoides near crenulatus (Conr.). R. Phaeoides antillarum Reeve. R. Phaeoides leucoeyma Dall. R. Phaeoides peetinatus (Gmel.). C. Phaeoides sp. Cuspidaria (Cardiomya) costellata Desh. R. Cardium serratum L. C. Cardium medium L. Cardium murieatum L. C. Gafrarium (Gouldia) eerina (C. B. Ad.). R. Pitar suharresta Dall. 1913. NATURAL SCIENCES OF PHILADELPHIA. 497 Chione cancellata (L.)- C. Tellina {EurytelUna) alter nata Say. C. Tellina (Cyclotellina) fausta Don. Tellina (Angulus) versicolor Coz. Tellina (Angulus) promera Dall. Abra cequalis (Say). R. Corhula equivalvis Phil. C. Corbula swif liana C. B. Ad. C. Manicina areolata (L.), Porites porites (Pallas). Agaricia agaricites (L.). Cladocora orhuscula (Le Sueur). Siderastrea sidera (Ell. and Sal.). Favia jragum (Pallas). List of Species obtained from the black mud unconformable ON the Gatun Formation at the lOwer end of the Gatun Locks.— Collection 2. Balanus ehurneus Gould. Melongena melongena (L.). Cerithidea varicosa Sby. Neritina virginea Lam. C. Ostrea virginiai Gmel. C. Congeria iMijtilopsis) cochleata Kick. C. Phacoides pedinatus (Gmel.). C. Anomalocardia cuneimeris Con. R. Cyrena (Polymesoda) acuta Prime. R. Descriptions of new species. Terebra spei n. sp. Fig. 1. The shell is small, slender, the diameter contained five times in the length. Apex lost, 11^ whorls remaining are slightly convex. Sculpture consists of rather sharp axial ribs, narrower than their concave intervals, curving backward in the middle, on the last whorl 22 in number, and continued as far as the anterior contraction; a spiral groove, equally deep over ribs and intervals, defines a posterior fasciole which is somewhat less than one-third the width of each whorl; below this there are seven spiral cords wider than their interstices, prominent in the concave inter- Fig. 1. — Terebra spei n. sp. 498 PROCEEDINGS OF THE ACADEMY OF [July, costal spaces, but almost effaced where they pass over the crests of the axial ribs. The aperture is trapezoidal; columella not plicate, but its lower edge is slightly prominent. Length 15, diam. 3.25, length of aperture 3.3 mm. Mount Hope bed. While related to T. protexta, this species differs by the convexity of the whorls. Drillia harfordiana var. colonensis n. var. The shell resembles Pleurotoma harfordiana Rve. in form, but is very much smaller. The anal fasciole is rather wide, concave, with a single prominent spiral cord near the suture. Below the fasciole there are 'rounded, slightly protractive axial ribs, strongest at the shoulder, rapidly diminishing downwards, and ten in number on the penultimate whorl. They are crossed by rather widely spaced spiral cords, of which three are visible on the penultimate, about a dozen on the last whorl. The cOrds are equally developed on the ribs and in their intervals, and the spaces between them are occupied by very fine spiral striae, especially well developed on the fasciole. The €oloration, though faded, is visible on some specimens. There is a white band at the shoulder and several white lines below, on a tawny ground. Length 12, diam. 5.5 mm.; about 9 whorls. Mount Hope bed. An allied recent form from Nicaragua is described below. Drillia harfordiana var. flucki n. v. Similar to var. colonensis except in the following details. The axial ribs are much more numerous, seventeen on the penultimate whorl; on the last whorl they diminish very rapidly below the periphery, and the spiral cords are noticeably enlarged and prominent on the summits of the ribs; the 6th and 7th below the shoulder are white. From the shoulder to the suture the surface is buff-white, and the growth strise somewhat lamellar; elsewhere the shell is dark mineral -red (of Ridgway's Color Standards). Length 19.3, diam. 8, length of aperture 8.2 mm.; 10 whorls, the tip wanting. King's Keys, Nicaragua, recent. Rev. W. H. Fluck. The figure of D. harfordiana Rve. measures, length 27.5, diam. 12.5 mm. The habitat of the species was and still is unknown, and it has not been described with sufficient detail; but these Central American forms resemble it in general features and may well be local forms of the same species. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 499 Diplodonta mediamericana n. sp. Fig. 2. The shell is of the usual orbicular shape, the length and altitude about equal, diameter nearly two-thirds of the length; rather thin; surface densely and very delicately striate, smoother towards the beaks, which are somewhat prominent. Margins somewhat straightened on both sides of the beaks; the anterior end a little more broadly rounded than the posterior. Teeth rather strong. Length 15.5, alt. 15.1, diam. 9.8 mm. Porto Barrios and Livingston, Guatemala,, in mud brought up on an anchor, S. L. Schumo, cotypes No. 76,479 A. N. S. P. Fig. 2. -~ Diplodonta medi- ^^^^^ ^j^_ jj^pg Professor W. B. Scott. amencuna n. sp. . , , i i tn This species closely resembles D. puiic- turella Dall, but differs in the sculpture and proportions. D. nuclei- formis (Wagner) is a much smaller and more obese form. Leda vulgaris n. sp. Fig. .3. The shell is rather solid, plump, equivalve; beaks median, small, contiguous. Anterior end rounded, its upper margin convex. Pos- terior end rapidly tapering, attenuate, its upper margin concave. Surface glossy, with fine, regular sculpture of concentric grooves as wide as the in- tervening ridges. The posterior dor- sal surface is flattened, striate, bounded by strong ridges, giving the appearance of a large, lanceolate escutcheon. There are 16 anterior and about 26 posterior teeth. Length 12, alt. 6.3, diam. 5.2 mm. Length 11.5, alt. 6.3, diam, 6 mm. This species, which is extremely abundant in the Mount Hope For- mation, was also obtained in mud from an anchor collected by Mr. S. L. Schumo at Porto Barrios, Livingston, Belize, and INIonkey River, and is therefore a common form of the Central American litoral. L, commutata Phil., which seems closely related, is a wider species, the basal margin being more deeply arcuate. L. mauritiana Sowerby is very similar, but in various details is nearer to L. jamai- censis Orb. Fig. 3. — Leda vulgaris n. sp. 500 PROCEEDINGS OF THE ACADEMY OF [July, Leda vulgaris var. obliterata n. v. A form closely related to L. vulgaris was collected by Mr. Clarence B. Moore in Indian Pass, Appalachicola Bay, Calhoun Co., Fla. It differs by having the valve smooth until it reaches an altitude of about 4 mm., after which it is concentrically grooved as in vulgaris. There are about 16 teeth before, 18 behind the beaks. Length 10.7, alt. 6, semidiameter 2.2 mm. Seventeen detached valves but no complete shells were taken. Cotypes No. 109,049 A. N. S. P. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 501 NEW SPECIES OF THE GENUS MOHNIA FROM THE NORTH PACIFIC. BY WILLIAM HEALEY DALL. In arranging for study the unequalled collection of Chrysodominse of the National Museum, I found an unexpected number of species of the genus Mohnia Friele, of which one or two species, including the type, are found in the North Atlantic. Diagnoses of some of the undescribed forms are appended. Mohnia robusta "• sp. Shell solid, stout, of about eight whorls, the apical ones being always eroded in adult shells; the upper whorls with 15-16 axial, rounded, little elevated, nearly straight riblets, which become feebler and finally vanish on the last whorl; suture appressed, slightly constricted; other axial sculpture of rather irregular, retractively arcuate incremental lines; spiral sculpture of obscurely channelled grooves which become wider with age and on the penultimate whorl are about 14 in number; on the last whorl they are coarser on the base, but nowhere sharp or clean cut; the whole surface is covered with a dark olive periostracum, under which the shell is white; aperture ovate, the body erased white, the pillar gyrate but not pervious, the outer lip thin, sharp ; the canal rather wide and strongly recurved. The nucleus is not preserved on any of the specimens. The operculum is dark horn color and forms about one whorl . Length of type specimen (about five whorls) 36.5; of last whorl 25; maximum diameter 15 mm. Bering Sea in 987 fathoms, off the Pribiloff Islands. Mohnia corbis n. sp. Shell with the apex eroded and about five rounded whorls remain- ing; white, covered with an olivaceous yellow periostracum; suture appressed; axial sculpture of numerous, rather irregular, prominent incremental lines; spiral sculpture of, between the sutures, about seven cord-like ridges, which on the last whorl become flatter and strap-like; the interspaces are irregular, but usually wider; between the cord at the shoulder and the suture behind there is a flattish space with four or five obsolete finer spirals; contrary to custom, the base of the last whorl and canal have no spiral sculpture; aperture 502 PROCEEDINGS OF THE ACADEMY OF [Aug.^ short-oval, the. outer lip thin, short, the body erased white, the pillar gyrate and minutely pervious; canal very short, wide, and slightly recurved; operculum with a small subspiral nucleus. Length of shell 31; of last whorl 20 ; maximum diameter 14 mm. Bering Sea, off the Pribiloff Islands in 1,771 fathoms. Mohnia vernalis "■ sp. Shell small, thin, white under a light green periostracum, of about seven whorls; the apex apparently blunt, but always more or less eroded; the nepionic whorls with a few spiral grooves, the following whorl or two with about 16 rather prominent short ribs, most promi- nent at the periphery, with narrower interspaces crossed by fine spiral striae with wider interspaces; the ribs rapidly become obsolete and on the last three whorls are absent, the surface being then only marked by very arcuate incremental lines, the striae becoming obso- lete, except on the base near the canal where there are a few coarse spirals; aperture short-ovate, the outer lip thin, sharp, the body erased, the canal short, wide, slightly recurved, the pillar gyrate, minutely pervious; the operculum with a subspiral nucleus. Length of five whorls (the apex being eroded) 21 ; of last whorl 14; maximum diameter 10 mm. Off Tillamook Bay, Oregon, in 786 fathoms. Mohnia siphonoides n.'sp. Shell solid, rotund, white, with an olivaceous polished periostracum, and with about six whorls; apex eroded, apparently blunt; sculpture of faint incremental lines and sparse zigzag oljsolete ridges recalling those of Tritonofusus hypolispus Dall, but less distinct; whorls rather flattish, aperture ovate; outer lip slightly reflected, body with a thin layer of callus, pillar gyrate, not pervious, canal short, recurved. Operculum with a small subspiral nucleus. Length (eroded) 34; length of last whorl 26; maximum diameter 15 mm. Bering Sea, off Pribiloff Islands, in 987 fathoms. If it were not for the operculum, this shell would certainly be referred to Tritonofusus. Mohnia exquisita n. sp. Shell delicate, white under a greenish periostracum, with about seven whorls; suture not appressed; axial sculpture of incremental lines which cut the spiral keels and minutely serrate their edges occasionally; spiral sculpture, fundamentally of two prominently elevated keels; one at the shoulder recurved, the other vertical to its base; with ten or twelve not prominent spiral cords on the base. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 503 In one specimen the space between the keels has no spiral sculpture, in another there are one or two minor keels and numerous faint spirals; this specimen also has a minor keel marginating the base. Aperture rather small, the outer lip sharp, thin, modified by the keels; inner lip erased, white; pillar gyrate, minutely pervious; canal short, wide, hardly recurved. Operculum with subspiral nucleus and much transparent enamel on the margin of the proximal surface. Length 31; length of last whorl 20; maximum diameter 14 mm. Bering Sea, off Koniugi Islands, in 1,766 fathoms. Mohnia buccinoides n. sp. Shell large, thin, with more than six whorls; white, covered with an unpolished pale gray periostracum; suture not appressed; whorls well rounded; spiral sculpture of a single moderately prominent cord at the periphery, and numerous fine spiral striae, with somewhat irregular wider interspaces; axial sculpture only of incremental lines which are not conspicuous; aperture rounded-quadrate, the outer lip thin, sharp, the body erased, the pillar gyrate, minutely pervious; canal short, wide, recurved; operculum with a subspiral nucleus. Length of (eroded) shell 38; of last whorl 27; maximum diameter 19 mm. Off Hondo, Japan, in 905 fathoms. This would certainly be taken for an immature Biiccinini? if it were not for the operculum. Mohnia japonica n. si>. Shell small, polished, white under a dark green periostracum, the apex eroded, but having apparentlj^ about six whorls; the first intact whorl shows faint indications of obsolete ribbing, the later whorls are smooth except for faint incremental lines and obscure, almost microscopic spiral stride; on the base there are the usual spiral threads near the canal. Aperture elongate-ovate, outer lip thin, sharp; body erased, canal short, wide, recurved, axis gyrate, not pervious. Length of shell (eroded) 19; of last whorl 13; maximum diameter 8.5 mm. Off Sado Island, Japan Sea, in 225 fathoms. Mohnia kurilana n. sj. Shell small, very delicate, with a blunt nucleus and six and a half well-rounded whorls; whitish under a thin olivaceous velvety periostracum; nucleus blunt, axially minutely sharply ribbed; the next whorl with many minute riblets is cancellated by. revolving threads; the subsequent whorls have six or seven nearly uniform 33 504 PROCEEDINGS OF THE ACADEMY OF [Aug., revolving grooves separated by wider flattish interspaces, which, on the last whorl, cover the whole surface, including the base; suture distinct, not appressed; aperture short, the outer lip very thin, sharp, the body without callus, the axis gyrate, minutely pervious; the canal short, hardly recurved; operculum with a subspiral nucleus. Length of shell 14; of last whorl 9; maximum (hameter 7.5 mm. Off the Kuril Islands, in 229 fathoms. This shell has the aspect of Thalassoplanes, hnt the operculum of Mohnia. Mohnia hondoensis n. sj.. Shell small, of about six whorls, whitish, covered by an olivaceous periostracum; first two whorls denuded, the next with a peripheral carina and about ten ribs which are prominent only at the periphery, and as well as the carina become obsolete on the last whorl; there are also faint microscopic spiral striae here and there; aperture narrow, outer lip sharp, body erased; pillar gyrate, not pervious; canal short, wide, slightly recurved. Length of shell 12; of last whorl 9.5; maximum diameter 6 mm. Off Hondo, Japan, in 76 fathoms. The above species were dredged at various times liy the II. S. Bureau of Fisheries steamer Albatross. PROC. ACAD. NAT. SCI. PHILA. d91.: FOWLER: AMPHIBIANS AND JREPTILES FROM ECUADOR, M VENEZUELA, AND YUCATAN.i : ■ Bufo cseruleocellatus sp. nov. i.Bufo chanchanensis sp. nov. PROC. ACAD. NAT. SCI. PHILA. 191,3. PLATE VI. FOWLER: AMPHIBIANS AND REPTILES FROM ECUADOR, VENEZUELA, AND YUCATAN. Hyla chimboe sp. nov. Hvia riobambsB .sd. mov. PROC. ACAD. NAT. SCI. PHILA. 191.3. PLATE VII. FOWLER: AMPHIBIANS AND REPTILES FROM ECUADOR, VENEZUELA, AND YUCATAN. Hyla quitCB .sp. nov. Hyla quinquefasciata sp. uuv. PROC. ACAD. NAT. SCI. PHILA. 191.5 FOWLER: AMPHIBIANS AND REPTILES FROM ECUADOR, VENEZUELA, AND YUCATAN. Hylodes pagms sp. nov. Hvloxalus huiarae so. nov. PROC. ACAD. NAT. SCI. PHILA. 1913. PLATE IX. FOWLER: AMPHIBIANS AND REPTILES r^FROM ECUADOR, VENEZUELA, AND YUCATAN. Rana brevipalmata rhoadsi subsp. nov. Rana brevioalmata Cone. PROC. ACAD. NAT. SCI. PHILA. 1 FOWLER: AMPHIBIANS AND REPTILES FROM ECUADOR, VENEZUELA, AND YUCATAN. Anolis nitens bondi subsp. nov. PROC. ACAD. NAT. SCI. PHILA. iOl.3. -"■H^'- li 'f i# • •A ^j^ _^ 6 BANKS: AMERICAN SPIDERS. PROC. ACAD. NAT. SCI. PHILA. 1913. BANKS: AMERICAN SPIDERS. PROC. ACAD. NAT. SCI. PHILA. 19i: PLATE .XIII, BANKS: AMERICAN SPIDERS. PROC. ACAD. NAT. SCI. PHILA. 191.3. PLATE XIV. CALVERT: FOSSIL ODONATE PHENACOLESTES. PROC. ACAD. NAT. SCI. PHILA. 191.'3. PLATE XV UlibSacsr-* /^. •^-v*. t*.M^'« i~ 10 ^ &»/ ~^ v-~ ^^ 15 -,0^^' 16 17 i.*^ 22 19 ^ ■'23 20 24' PILSBRY: LOWER CALIFORNIAN HELICES. PROC. ACAD. NAT. SCI. PHILA. 1913. ^^ 29 37 jt"^^ 41 49 26 30 34 38 ^SS^. • '^ 46 50 27 ^v^ \: 35 39 43 47 5 1 ^dr±:^ ^ 36 40 44 -# 48 % PILSBRY: LOWER CALIFORNIAN HELICES. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 505 REPTILES COLLECTED BY THE YALE PERUVIAN EXPEDITION OF 1912. BY THOMAS BARBOUR. Dr. Hiram Bingham has sent me two small lots of snakes, nine specimens in all, from Machu Pichu, 9,000-10,000 feet altitude, Department of Cuzco, Southern Peru. They were collected by Dr. George P. Eaton and Mr. EUwood C. Erdis. Four species are represented, of which two are new. The types of the new species have been studied by Dr. A. G. Ruthven, and the description of one of them appears under his name. The other he returned, since he had no material of the genus Drepanodon for direct comparison, and since the Yale specimen had its teeth badly broken he was loath to describe it. I have, however, a specimen of D. anomalus Jan., which I obtained in Bolivia, and am enabled to make quite sure, I think, that the second specimen represents an undescribed species of this genus. The fact that Dr. Ruthven was leaving for South America on a collecting trip, and the desirability of reporting on this material at once, has led me to describe one species myself with Dr. Ruthven's consent, and to include his description of the other with my own. Dr. Bingham has kindly added these specimens to the Reptile Collection of the Museum of Comparative Zoology. Atractus badius (Boie). Boie, Isis, 1S27, p. 540. Boulenger, Cat. Sn. B. M., 2, 1894, p. 308. Four specimens from Machu Pichu. In squamation these all fall within the limits indicated by Boulenger (I.e.). In coloration, however, they do not agree quite so well. It is also noteworthy that these four examples from the same locality are exactly alike in pattern and shade of color. They are pale reddish-brown above, with more or less irregular darker blotches above which have a tendency to fall into alternating series upon the dorsal region. The ventral surface is covered with blotches of brownish-black, many of which are often confluent. This coloration combines some of the characters described by Boulenger for what he calls var. B. and C. Nevertheless, it is quite different and may be confined to specimens from this part of Peru. If this turns out to be the case, it will be advisable to name this race. 34 506 PROCEEDINGS OF THE ACADEMY OF [Sept., Drepanodon erdisii sp. nov. Type, Mus. Comp. ZooL, No. 8,829, from Machu Pichu, Peru, 1912; collected by the Yale Peruvian Expedition of that year. Head rather distinct from neck; eye moderate, with vertically elliptical pupil. Body quite strongly compressed; scales smooth, no apical pits, in nineteen rows; ventrals 198, rounded; anal un- divided; subcaudals in 64 pairs. Rostral broader than high, just visible from above ; nostril in the suture between two nasals ; frontal longer than broad, almost triangular, the apex being directed back- ward; loreal not conspicuously small, almost a rectangle; one prse- and two postoculars; temporals 2+3; eight upper labials, of which the fourth and fifth enter the eye ; four lower labials in contact with the anterior chin shields, which are al)Out equal in length to the posterior pair. In color the head is black, with an incomplete collar interrupted on the nape (red in life undoubtedly and white in spirits). The body is crossed by twenty-seven broad black bands, which are about twelve scales wide dorsally and much more narrow ventrally, usually covering but four ventrals. The result is an equal number of inter- spaces, wide below and narrow dorsally, which are white in spirits (probably also red in life). There are numerous black spots in the white (red?) areas dorsally and a few in the lateral interspaces. Ten black rings upon tail, including the tip, which is black, the interspaces being very narrow. Named for Mr. Ellwood C. Erdis, who, with Dr. Eaton, collected these specimens. Drepanodon eatoni Ruthven sp. nov. Type. Mus. Comp. ZooL, No. 8,831, from Machu Pichu, Peru, 1912; collected by the Yale Peruvian Expedition of that year. "There are 12-13 small maxillary teeth subequal or slightly in- creasing in length, followed after a short interspace by two enlarged and compressed teeth. Mandibular teeth subequal. Head distinct from neck; eye moderate with vertically elliptic pupil. Body a little compressed; scales smooth and without pits, in fifteen rows throughout; ventrals 165, rounded. Tail moderate, subcaudals in 32 pairs; anal plate entire. Rostral normal, just visible from above; two nasals; frontal slightly broader than long, with an obtuse angle posteriorly; loreal very small and low; preoculars 1 and 2; post- oculars 2; temporals 1-2 and 2-2; upper labials 7, third and fourth beneath the eye; 7 lower labials, four in contact with the anterior 1913.] NATURAL SCIENCES OF PHILADELPHIA. 507 chill shields, which are of about the .same length as the posterior pair. "Anteriorly the back is crossed by black bars about 4 scales broad, which are imperfectly continued on the sides of the belly and mostly interrupted on the median line. Toward the middle of the body the lateral parts of the bars tend to become displaced to form a pattern of alternating blotches, which are sometimes connected on the lower part of the sides. Near the tail the black markings are again united into cross bars and on the tail again broken up into alternating spots. The interspaces are about 3 scales wide, and scales are mostly pale (reddish in life?) , relieved by small pale brown lines or spots and generally a poorly defined dark brown spot or line. There is an irregular light collar, from which a poorly defined con- tinuation extends on the temple. Sides of head with pale mark; chin much spotted with black. "It will be noted that the characters of this snake are not exactly the same as those ascribed to the genus Drepanodon. The principal differences from the other species are the slightly greater number of maxillary teeth and the shape of the body, but the writer believes that the forms have enough in common to make it advisable to refer the species tentatively to this genus." The collection also contains a single paratj^je of this species. Named for Dr. George F. Eaton, who, with Mr. Erdis, collected these specimens. Lachesis lanceolatus (Lac^pede). Lac^pede, Serp., 2, 1789, pp. 80, 121, pi. 5. fig. 1. Boulenger, Cat. Sn. B. M., 3, 1896, p. 535. Two t\T)ical examples of this dangerous and wide-ranging species. Explanation of the Plate XVII. Fig. 1. — Dorsal view of head of type of Drepanodon eatonii Ruthven. Four times natural size. Fig. 2. — Lateral view of head of same specimen. Similar enlargement. Fig. 3. — Dorsal view of head of type of Drepanodon erdisii Barbour. Four times natural size. Fig. 4. — Lateral view of head of same specimen. Similar enlargement. 508 PROCEEDINGS OF THE ACADEMY OF [Sept., CONTRIBUTIONS TO THE SYNONYMY OF SERPENTS IN THE FAMILY ELAPIDa:. BY JOSEPH C. THOMPSON, SURGEON, U. S. N. In Mr. Ruthven's epoch-making monograph, Variations and Ge- netic Relationships of the Garter-snakes, one reads: "An examination of the systematic work that has been done upon the snakes shows, as might be expected, that it is largely analytical in its nature, being for the most part descriptive of the existing diversities";^ and a little further along, he adds: "After analysis, therefore, as has been said, comes the need of a larger synthesis."- The first step in the synthetic work is the reexamination of speci- mens that have been made the types of new species. This note calls attention to five that should be stricken from the list of valid species. Described as New. Correct Status. Naja tripudians samarensis Peters Naja tripudians Merrem. Naja morgani Mocquard. Walterinnesia mgyptica Latastc. Callophis boettgeri Fritze. Calliophis japonicus Guenther. Calliophis swinhoei Denburgh. Calliophis macclellandii (Rein- hardt) . Flaps heterochilus Mocquard. Elaps spixii (Wagler). Naja tripudians Merrem. Type. — Naja tripudians Laur., nova var. Samarensis, Peters.^ Berlin Museum. Loquilocun, Samar, Philippine Islands. The subspecies of Peters, which was later promoted to the rank of a species, is based upon a cobra that is normal in every respect, with the exception that the supralabials are reduced from seven to six. This is brought about by the fusion of the normal third and fourth shields. As the result of this two more characters become altered: there is but one labial, the fused shield, entering the eye, and the rostral shield becomes a trifle wider. Four specimens from Samar have been examined at the United States National Museum and at the Senckenberg Museum. In these specimens the rostral and the supralabial shields were normal, the scale count averaged twenty-one 1 1908, Btdletin 61, U. S. National Museum, p. 1. ^Loc. ciL, p. 2. 3 1861, Mon. Berl. Akad., p. 690. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 509 rows on the neck and nineteen on the body, the gastrosteges one hundred sixty-nine, the urosteges fifty, and the total two hundred nineteen. In the Catalogue of the Snakes in the British Museum there is a full page of synonymy for Naja tripudians, followed by the remark: "This species, as here understood, varies very considerably, and the forms enumerated hereafter might be regarded as distinct species but for the absence of any sharp demarcation-lines between them." Instead of this serving as an object lesson of the futility of the en- deavor to divide a complex and variable species such as the cobra into endless subspecies, labor is still being expended. The present vogue is to arrange the cobras in an arithmetical series, calculated from the number of ventral and subcaudal shields or from the sum of both. Where a gap in the series is discovered (which gap is regularly due to lack of sufficient material) , there to boldly draw a line between this and that subspecies. On one occasion no demarca- tion-lines whatever were needed to reestablish a subspecies. We learn * that the variety leucodira comes from Sumatra and sputatrix from Java. The distinguishing characters of the two are presented in tabular form: Variety. Locality. Scales. Gastro- steges. Urosteges. Neck. Body. leucodivw , Sumatra Java 25-23-21 25-23 21-19-17 23-21-19 174-193 163-183 46-55 44-53 In other words, this table shows: Sumatran specimens to be characterized by having at times two scale rows less on the neck, two less on the body, ten more gas- trosteges, and two more urosteges than some Javan specimens. Javan specimens to be distinguishable bj^ occasionally having two more scale rows on the body, eleven gastrosteges less, and two uro- steges less than some Sumatran specimens. As a matter of fact, when two groups of animals require to be defined in terms of this nature, it really means that they belong to the same species, and that the only tangible difference between them is to be found on the locality label. Walterinnesia aegyptica Lataste. Type. — Naja morgani Mocquard.^ Mus. d'Hist. Nat., No. 04-562. Arabistan, Persia. n912, Mem. Mus. Comp. Zool, Vol. XLIV, No. 1, pp. 135, 136. 5 190.5, Bull. Mm. Paris, XI, p. 78. 510 PROCEEDINGS OF THE ACADEMY OF [Sept., Squamation. — Scales in 23 rows on the neck and 22 rows on the anterior part of the body; gastrosteges 184; anal divided; urosteges 44 pairs, the first to the ninth entire. Rostral deeper than broad, portion visible from above measuring three-fourths its distance from the frontal; frontal longer than wide (7 mm. by 5 mm.) ; one preocular, two postoculars, and one subocular; two anterior and three posterior temporals; seven supralabials, the third and fourth entering the eye,. third the deepest, fifth touches the inferior postocular on the right but not on the left side ; anterior geneials longer than the posterior. Anatomy. — Head 34 mm. long; snout 10.6 mm., projecting 4 mm. beyond the tip of the lower jaw; diameter of the eye 3.5 mm., its distance from the mouth 4.8 mm. Maxillary bone extending for- wards beyond the palatine, and bearing in addition to the fangs two small grooved teeth. CoTYPEs. — Naja morgani Mocquard. Mus. d'Hist. Nat., No. 04-563. Arabistan, Persia. Squamation. — Scales in 24 rows on the neck; gastrosteges 182^, the 182d shield is divided; anal divided; urosteges 46 pairs, the second partly divided, the third entire. Mus. d'Hist. Nat., No. 04-564. Arabistan, Persia. Total length 562, tail 70 mm. Squamation. — Scales in 25 rows on the neck and 23 on the anterior part of the body; gastrosteges 196|; urosteges 40 pairs, the first to the third entire. Rostral broader than deep, portion visible from above three-fourths as long as its distance from the frontal; frontal longer than broad (4.7 mm. by 3 mm.) ; one preocular, two postoculars, and one subocular; two anterior and three posterior temporals. Anatomy. — Head 23.5 mm. long; snout 7.5 mm.; diameter of the eye 2.6 mm., its distance from the mouth 3 mm.; pupil oval. Mus. d'Hist. Nat., No. 04-565. Arabistan, Persia. Total length 650, tail 92 mm. Squamation. — Scales in 25 rows on the neck and 23 on the anterior part of the body; gastrosteges 186|; anal divided; urosteges 45 pairs, the second to the ninth entire. Internasals 3.2 mm. long; prefrontals 3.3 mm. long; frontal 5.6 mm. long and 4.1 mm. broad, its distance from the rostral 4.2 mm. Anatomy. — Head 23 mm. long and 16 mm. broad; snout 8.5 mm. long; diameter of the eye 3 mm., its distance from the mouth 3.6 mm. Mus. d'Hist. Nat., No. 04-566. Arabistan, Persia. Squamation. — Scales in 23 rows on the neck and 21 on the ante- 1913.] NATURAL SCIENCES OF PHILADELPHIA. 511 rior part of the body; gastrosteges 193 ; anal divided ; urosteges 43 pairs, the second to the sixth entire. Rostral 3.3 mm. long, 2.3 mm. broad, portion visible from above equals 1.5 mm., its distance from the fron- tal 2.5 mm.; internasals 2 mm. long; prefrontals 2 mm. long; parietals 5.2 mm. long; two preoculars, two postoculars, and one subocular; two anterior temporals, two posterior on the right and three on the left side. Anatomy. — Head 15 mm. long; snout 5 mm. long; diameter of the eye 1.8 mm., its distance from the mouth 1.8 mm. Calliophis japonicus Guenther. Type. — Callophis boettgeri Fritze.*^ Mus. Senckenbergianum No. 9395. Tokuchimura, Okinawa, Loo Choo Islands. Male; total length 384, tail 37 mm. Squamation. — Temporals one anterior, one median, and two pos- terior on the right, and one anterior, two median, and two posterior on the left side. Coloration. — Five longitudinal stripes, broader than the intervals; the lateral pair terminate at the base of the tail. Body with nine, tail with one cross-band. The records of the color pattern show that the longitudinal mark- ings vary in number and width from a single narrow vertebral line to five stripes that are broader than the intervals. Furthermore, between the extremes there exist the following unbroken series of intermediate designs: A median stripe. A median stripe with trace of the intermediate pair. A median stripe and the intermediate pair. A median stripe, the intermediate pair, and a trace of the lateral pair. A median stripe, the intermediate, and the lateral stripes, narroAver than the intervals. A median stripe, the intermediate, and the lateral stripes, broader than the intervals. Specimens possessing these various color patterns do not have associated with them the slightest diversity in structure. The ser- pents with five stripes that are broader than the intervals have been elevated to specific rank as C alio phis boettgeri Fritze. The name has been correctly assigned to synonymy^ and should be allowed to remain there. 6 1894, Zool. Jahrb., VII, p. 861. 7 1896, Boulenger, Cat. Sn. Brit. Mus., Ill, p. .39.5. 512 PROCEEDINGS OF THE ACADEMY OF [Sept., Major Wall mentions two specimens as having tiie last ventral shield divided. This condition seems to be prevalent to a marked degree in Asiatic Elapidse. The local name aka-mata, signifying ''red-death", is a simple reference to the color and the dangerous nature of the beast. The mata element of the phrase is the Malayo-Polynesian root form mean- ing "death", and is used in this connection from Madagascar in the west to Hawaii in the east. Calliophis macclellandii (Rcinhardt). Type. — Calliophis swinhoei Denburgh.^ California Acad. Sci., No. 14,978. Suishako, Central Formosa. Female; total length 220, tail 20 mm. This synonym is based upon a specimen that was purchased from a dealer in Japan. The description or the type does not mention any character by which it may be distinguished from a normal Calliophis macclellandii; the diagnosis, which is an epitome of the description, reads, "Similar to Calliophis macclellandii, but with more numerous gastrosteges and urosteges; the sum of the gastrosteges and urosteges always more than 256." The distribution of Calliophis macclellandii is from northern India to Formosa. It belongs to a group in which a particularly wide range in the number of vertebrae frequently occurs in the same species. If the records be tabulated, one may see at a glance the following data: Gastrosteges: Range in 17 specimens .' 182-240 Range in 12 from mainland 182-231 Range in 5 from Formosa 219-240 Overlapping of mainland and island specimens: In terms of gastrosteges 12 In percentage of range 20.6% Urosteges : Range in 17 specimens 25-41 Range in 12 from mainland 25-36 Range in 5 from Formosa 32-41 Overlapping of mainland and island specimens: In terms of gastrosteges : 5 In percentage of range 30% S1912, Proc. Cal. Ac. Sci., (4), Vol. Ill, p. 255. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 513 Sum of the gastrosteges and urosteges: Range in 17 specimens. 210-274 Range in 12 from mainland 210-250 Range in 5 from Formosa „ 200-274 Gap between mainland and island specimens: In terms of gastrosteges 4 In percentage of range ; 6i% If this data be plotted on squared paper, due regard being taken of the gastrostege and the urostege count, an instructive diagram will result. The solid dots represent mainland and the circles island specimens; where the sex has been recorded there is added the con- ventional sign. Su )ra irin » " fro MO 5A - IFO UEN d" }RM OSA fsi KIM Jfi CHI lA IRM )?A , fllN ff OAR JEE LIN > •° EEL f ? - - 25 VkL .S2 * 190 200 210 220 230 240 ^•n ~h 1 ^ ■^ ^ ■"^ ■■■ ^ "" ^ " ^ ^ ^ ^ ^ gg ^ r^ MO * ^ ^ BB a J _ _ -L ! 1 Observations along these lines are of interest when carried out as studies in geographical variation, but when thej^ become the basis of new species nothing but confusion will eventually result. The point that these tables really make clear is that the island specimens differ from those of the mainland in having an increased number of vertebrae. This is a well-known phenomenon, and it occurs in almost all the species of Colubrinse, Najidse, and Crotalinae that inhabit both the mainland of Asia and the adjacent island arcs. To estal^lish C. swinhoei involved the following procedure: From the records of twelve mainland and five island specimens, seventeen in all, certain additions and subtractions were made, and a difference of four vertebrae in a range of sixty-four, equivalent to Gj%, was discovered. This Gj% variation in a single character was added to the locality label, and the sum was a new species. Where the same species inhabits the mainland and an adjacent 514 PROCEEDINGS OF THE ACADEMY OF [Sept., island, and where but a few examples are studied from each locality, it is but the application of the most elementary arithmetic to dem- onstrate that a small gap exists betAveen the two groups. Where these two groups are recognized in taxonomy, and where the series increases and the gap disappears, then but one criterion is left by which the determination of a specimen may be accomplished — namely, the locality label. Elaps spixii (Wagler). Type. — Elaps heterochilus Mocquard.^ Mus. d'Hist. Nat., No. 87-122. Brazil. Total length 553, tail 43 mm. Squamation. — Scales in 15 continuous rows; gastrosteges 209; anal entire; urosteges 29 pairs, the 3d to the 8th, and the 24th entire. One preocular and two postoculars; six supralabials, the third and fourth entering the eye. Coloration. — Thirty-six subequal black rings; distinct arrangement in triads is present only in the first three sets, posteriorly the inter- spaces between the sets are distinguished by being a trifle wider and by having the red scales with a slightly smaller black spot at the tip. Anatomy. — Diameter of the eye 1.6 mm., its distance from the mouth 2 mm. There are nearly forty species of Elaps, and all have seven supra- labials. There is no genus of anything like this size with so uniform a count. The reduction to six supralabials seen in this specimen is caused by the fusion of the normal first and second; this fused shield shows on its lower margin an indenture and a very short suture ex- tending upward. The reduction in the number of infralabials is due to the fusion of the normal first and second; the right shield has a short incisure from the oral rim. These dents and short sutures indicate the position of the normal line of separation. The temporals are irregular ; the anterior shield on the right side being fused with all the lateral cephalic shields as far back as the last labial; the posterior temporal on the left side is fused with the shield that normally inter- venes between it and the azygos plate l)ehind the parietals. E. heterochilus has been based upon a specimen having a number of the normal shields fused and others not completely divided. M. Mocquard suggested that these conditions might be abnormal when he wrote, "La disposition observes ici pourrait done n'etre qu'une simple anomalie." U. S. F. S. Albatross, July 6, 1913. 9 1887, Bull. Soc. Philom., (7), XI, p. .39. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 515 October 7. ^Ir. Charles Morris in the Chair. Twenty-one persons present. The Publication Committee reported that since the last meeting, papers under the following titles had been accepted for publication in the Proceedings : ''A revision of the species of the genus Nemobius (Orthoptera: Gryllidse) found in North America north of the Isthmus of Panama," by Morgan Hebard (June 5). ''Reptiles collected by the Yale Peruvian Expedition of 1912," by Thomas Barbour (June 23). "Two collections of Pleistocene fossils from the Isthmus of Panama," by Amos P. Brown and Henry A. Pilsbry (June 26). "A study of the species of the genus Dichopetala (Orthoptera: Tettigoniidse) , " by James A. G. Rehn and Morgan Hebard (July 18). "Contributions to the synonymy of serpents in the family Elapidse," by Joseph C. Thompson (July 21). "New species of the genus Mohnia, " by William Heah' Dall (July 29). "Fishes from the Madeira River, Brazil," by Henry W. Fowler (August 15). "The land and fresh-water mollusks of the Stanford Expedition to Brazil," by Fred Baker (September 25). A paper entitled "Evolution of the color pattern in the micro- lepidopterous genus Lithocolletis, " by Annette Frances Braun (Sep- tember 22), was accepted as a contribution to the Journal. The deaths of the following members were announced: William S. Grant, June 18, 1912. Charles H. Cramp, June 6, 1913. Philip P. Kelly, June 13. Lucy H. Baird, June 19. Horace F. Jayne, July 8. Orlando Crease, July 30. Anna Blanchard, August 2. The deaths of the following Correspondents were also announced: Lord Avebury, May 26, 1913. Philip L. Sclater, June 27. Joseph H. Corson, July 24. Igino Cocchi, August 18. 516 proceedings of the academy of [oct., October 21. Mr. Charles Morris in the Chair. Ten persons present. Clarence E. McClung, Ph.D., and Edward B. Krumbhaar were elected members. The following was ordered to be published: 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 517 FISHES FROM THE MADEIRA RIVER, BRAZIL. BY HENRY W. FOWLER. The fishes described in the present paper were collected by iMr. Edgar A. Smith, in 1912 and 1913. They were secured at various localities along the Madeira River or in its tributaries during jVIr. Smith's last trip to Brazil. As natural history was but an inci- dental feature of the journey, and opportunities for collecting being very hmited, Mr. Smith was fortunate in securing an interesting collection. The specimens are all small. A number of the species appear to be undescribed, or possibly hydrographical forms of their allies. As very few species have previously been recorded from the Madeira River, the present account is offered as a contribution to Brazilian ichthyology. The Academy is indebted to Mr. Smith for the gift of the collection to its museum. The accompanying figures are all drawn to scale, the line given with each one expressing millimeters. CHARACID^. CURIMATIX.E. Curimatus cyprinoides (Linnaeus). Fig. 1. Two examples, 125 and 135 mm. long, from about 20 miles north of Porto Velho, in the Madeira River, October, 1912. Fig. 1. ^Curimatus cpyrinoides (Linnaeus). (Young.) 518 PROCEEDINGS OF THE ACADEMY OF [Oct., Eighteen young examples, of which one is figured, from tributaries of the Madeira River near Porto Velho. January and February, 1913. In color they are pale uniform brownish, without spots or other markings. The singular pectoral fin of these specimens first attracted my attention, as it is composed of a rather long basal fleshy lobe surrounded by the rays, which are given out from all sides, except in front. That these specimens are identical with the present species appears to me unquestionable. This is of importance as two recently proposed genera are therefore very likel}^ parallel cases. I refer to Archecheir Eigenmann and Dermatocheir Durbin. Archeicheir is thus doubtless a synonym of the earlier (by page priority) Poecilohrycon Eigenmann, and Dermatocheir is synonymous with Hijphessobrycon Durbin. Curimatus tigris sp. nov. Fig. 2. Head 2|; depth 2f ; D. ii, 8; A. ii, 8; P. i, 10; V. i, 8; about 38 scales in median lateral series from shoulder to caudal base; about 19 scales in transverse series between dorsal and ventral origins; about 15 predorsal scales; head width 2 in its length, measured from mandible tip; head depth at occiput If; first branched dorsal ray 1^; first branched anal ray If; upper caudal lobe lyV; least depth of caudal peduncle 2*; length of pectoral 2f ; ventral 2|; snout 3f in head, measured from upper jaw tip; eye 3|; mouth width 3|; maxillary 4|; interorbital 3. Body elongately ovoid, well compressed, predorsal slightly con- stricted, postdorsal with slight median groove, pre ventral rounded convexly, and postventral constricted. Body deepest at dorsal origin. Caudal peduncle well compressed, and measured from last anal ray base, about long as deep. Head large, compressed, broader above, more or less flattened sides constricted below, and profiles similar. Snout nearly straight in profile, convex over surface, and length about f its width. Eye large, rounded, high, placed near first f in head. Eyelid free, not adipose-like. Pupil moderate. Mouth with short commissure, broad, opens superiorly and broadly in front. Lips broad, rather fleshy, smooth. Maxillary not very distinct, scarcely free, and extends back to hind nostril. Each jaw with a row of small, flexible, weak, conic teeth. Mandible with broad rami, slightly protrudes beyond snout tip, elevated and swollen in mouth and fitting in corresponding large cavities in upper jaw on each side posteriorly. Tongue not evident. Nostrils together, anterior simple pore and posterior in crescent, both faUing close to eye near last fourth in 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 519 snout length. Interorbital broadlj^ convex. Suborbital chain nar- row, and leaves cheek broadly exposed. Preopercle with ridge nearly vertical. Opercle large, smooth. Gill-opening forward, nearly opposite hind pupil edge. No rakers. Gill-filaments 1| in eye. Isthmus narrowly constricted, slender, and surface with rather narrow lengthwise groove. Branchiostegals moderately long and slender. Scales of more or less uniform size, cycloid, well exposed in longitu- dinal parallel series. No axillary scaly flaps, and no scales on bases of fins. L. 1. onlj' slightly developed as 4 simple pores at shoulder. Fig. 2. — Curimatus ligris Fowler. (Type.) Dorsal inserted anteriorly, or about midway between snout tip and end of adipose fin, first branched ray longest, and depressed fin reaches about If to caudal base. Adipose fin small, placed just behind anal base. Anal inserted a little nearer ventral origin than caudal base, first branched ray longest, extends well beyond rest of fin or till opposite caudal base, and lower edge of fin nearly straight. Caudal moderate, well forked, with equal pointed lobes. Pectoral with rather long fleshy base, surrounded on all its free edges by rays, of which upper a little longer than others. Ventral inserted about midway between pectoral and anal origins, and fin extends back -I to anal. Vent close in front of anal. Color in alcohol largely pale brownish, more or less uniform gen- erally. Back with about 14 lateral vertical dark or dusky streaks, 520 PROCEEDINGS OF THE ACADEMY OF [Oct., all narrower than their interspaces and last few broken up into spots. Fins all pale. Dorsal Avith large jet-black blotch anteriorly at basal half of fin, and distal portion with three transverse pale dusky streaks, uppermost terminal. Anal with 3 transverse pale dusky streaks. Iris slaty. Length 30 mm. Type, No. 39,156, A. N. S. P. Tributary of the Madeira River, near Porto Velho, Brazil. January or February, 1913. Edgar A. Smith. Also Nos. 39,157 to 39,186, A. N. S. P., same data, paratypes. A number of these show: Head 2| to 2f ; depth 2f to 3; D. ii, 8 or II, 9; A. ii, 8 or ii, 9; scales 38 to 40 in lateral series to caudal base, and sometimes 1 or 2 more on latter; 18 or 19 scales trans- versely between dorsal and ventral origins; 12 to 16 predorsal scales; snout 3f to 3f in head, measured from upper jaw tip; eye 3i to 3|; mouth width 3i to 3J; interorbital 3i to 3^; length 26 to 30 mm. This species is apparently related to Curimatus vittatus Kner,^ though that species is without the black dorsal blotch and has the scales much smaller (56). {Tiypt?^ tiger, with reference to the dark stripes on the back.) PROCHILODIN.E. Prochilodus pterostigma sp. nov. Fig. 3. Head 3f; depth 3|; D. iii, 9, i; A. iii, 7, i; P. i, 12; V. i, 7; scales 44 in 1. 1. to caudal base, and 2 more on latter; 7 scales above 1. 1.; 6 scales below 1. 1. to ventral origin; 5 scales below 1. 1. to anal origin; 16 predorsal scales; head width IfV in its length; head depth at occiput 1^; snout 3|; eye 3|; mouth width 3; maxillary 4; interorbital 2f; first branched dorsal ray lyV; first branched anal ray If; least depth of caudal peduncle 2f ; pectoral If; ventral If. Body moderately long and compressed, deepest at dorsal origin, back slightly elevated, and edges all more or less convex. Posterior half of predorsal with slight median keel extending to dorsal origin. Upper and lower surfaces of caudal peduncle with slight median keel. On each side of preventral a slight or obsolete keel extending to origin of fin. Caudal peduncle moderately compressed, least depth about 1^ its length. Head moderate, compressed, lower profile a little more inclined and convex in front than upper, and nearly level sides not con- 1 Curimatus (Anodus) mltatus Kner, Denk. Ak. Wiss., Wien, XVII, 18.5.5, p. 139, PI. 1, fig. 1. Rio Guapore and Rio Negro. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 521 stricted above or below, so that these surfaces equally broad and convex. Snout convex over surface and in profile, length about f its width, and as viewed from above broadly convex. Eye large, rounded, high, centre falls about first f in head. Pupil large. Adi- pose eyelid large and covers good portion of eye. Mouth broadly transverse, with shallow horizontal commissure extending about opposite front nostril. Snout tip protrudes well beyond upper jaw edge. Jaw edges rather trenchant, cartilaginous, firm, and without lips. No teeth. Mandible shallow, broad, with slight symphyseal knob fitting in depression in upper jaw. Inner buccal folds narrow. Tongue broad, as transverse cartilaginous truncate keel in front, Prochilodus pterostigma Fowler. (Type.) otherwise fleshy or thick and its extent ill defined. Maxillary small, extends down obliquely in short fleshy point below until opposite front nostril. Nostrils together, anterior simple pore and posterior exposed in crescent, placed at last third in snout length. Inter- orbital broadly convex. Suborbitals broad, well developed, infra- orbital entirely covering cheek and its surface with a few obsolete striae. Four large mucous tubes on preopercle, and its hind edge very slightly inclined back. Opercle large, with a few obsolete radi- ating striae. Occipital fontanel quite long, extends from just behind posterior nostrils to end of occipital process, and widens gradually, from in front backward, its entire length. Gill-opening extends forward about opposite posterior edge of pupil. Rakers about 10+20? short weak points, uniform in 35 522 PROCEEDINGS OF THE ACADEMY OF [Oct., length, and at least ^ or more in filaments, latter If in eye. Isthmus broadly convex. Branchiostegals large, subequal. Scales moderately large, well exposed, edges entire, of mostly uniform size, and disposed in series parallel with 1. 1. Striae on scales concentric or obscure. Scales on caudal base slightly smaller than elsewhere. Ventral with free pointed axillary scaly flap, its length about 3 in fin. Front base of adipose fin scaled. L. 1. com- plete, midway along side of body, very slightly curved. Tubes simple, anteriorly less exposed than behind, where they reach over first half of scale exposure at least. Dorsal origin slightly nearer snout tip than caudal base, first branched ray longest, extends back beyond all of others, though fin depressed back reaches a little less than half way to caudal base. Adipose fin inserted slightly nearer caudal base than last dorsal ray base, texture of fin somewhat ray-like above. Anal inserted slightly before adipose fin origin, first branched ray longest, and depressed fin reaches back | to caudal base, its lower or hind edge slightly emarginate. Caudal well forked, with long slender pointed and equal lobes, longer than head. Pectoral low, rather small, upper rays longest, and depressed fin reaches f to ventral origin. Ventral inserted a little nearer pectoral than anal origin, and depressed fin reaches f to anal. Vent placed nearly opposite tips of depressed ventrals or well before anal origin. Color in alcohol pale grayish-brown generally, lower surface scarcely paler. A narrow underlaid pale slaty streak begins at shoulder close over, or one scale above, 1. 1., extends concurrently with 1. 1. till after dorsal fin when it falls closer, so that 1. 1. marks rest of its lower boundary, and on caudal base it forms small dusky spot, which rather obscure and about size of pupil. Dusky caudal spot or lateral streak not reflected out on median caudal rays. At median branched dorsal rays basally a dusky blotch about size of pupil. No humeral blotch. Fins, otherwise than mentioned, pale grayish, lower ones slightly paler. Iris deep slaty. Length 85 mm. Type, No. 39,187, A. N. S. P. Madeira River, about twenty miles north of Porto Velho, Brazil. October, 1912. Edgar A. Smith. Only the type known. Characteristic of this species is the dark spot at the base of the dorsal fin medianly, spot at caudal base medianly, and the underlaid lateral streak. In these respects it differs from almost all the species of the genus. (Ihepov, fin; nt close before anal. Color in alcohol largely dull or pale brownish. Scales on back all broadly marked with dusk}- submarginal wide-angled streaks. Each scale on predorsal, postdorsal and scales along base of dorsal, with conspicuous rounded dusky or dark spot. Head brownish above, also on lips. Iris slaty. Lower surface of head, and belly, whitish. Along side, from head to caudal base broad area of brown- ish dots, these larger and more sparse on cheek and side of abdomen. Within this lateral area of dusky dots narrow brownish band extends from shoulder straight to median cau lal base, where continued out on middle rays of caudal as blackish streak, and streak not quite wide as pupil diameter. No distinct caudal spot. Humeral region 552 PROCEEDINGS OF THE ACADEMY OF [Oct., with elliptical horizontal dusky or blackish blotch a little less in length than eye. From lower edge a short vertical branch of dusky given off from humeral streak. Fins pale, with very slight dusky tinge distally, though all more or less whitish basally. Length 42 mm. Type, No. 39,232, A. N. S. P. Madeira River, about 200 miles east of W. Long. 62° 20', Brazil. September, 1912. Edgar A. Smith. Also Nos. 39,233 to 39,289, A. N. S. P., paratypes, same data. One example from the Madeira River above the Falls of Guajara- mirim, approximately S. Lat. 10° 47', W. Long. 65° 23', Brazil. September, 1912. Nine examples from Igarape de Candelaria, tributary of the Madeira River, about S. Lat. 8° 45', W. Long. 63° 54', Brazil. Sep- tember, 1912. Fifty-three examples from tributaries of the Madeira River near Porto Velho, Brazil. January-February, 1913. All the specimens representing this species are smaller than the type and were collected by Mr. Smith. Changes with age are noticeable in color, small or young specimens showing an obscure humeral blotch and usually no black on caudal. A narrow line of dusky dots* extends along parallel with the anal base on lower side of trunk. The species is related to Hyphessobrycon heUotti (Stein- dachner),^ though differs in the absence of maxillary teeth and the dark humeral blotch not surrounded by a bright ring. {Agulha, the native name.) Creagrutus anary sp. nov. Fig. 16. "Anary." Head 3f; depth 3f ; D. iii, 8; A. m, 11, i; P. i, 13; V. i, 7; scales 37 in 1. 1. to caudal base and 5 more on latter; 5 scales above 1. 1.; 3 scales below 1. 1. to ventral origin; 4 scales below 1. 1. to anal origin; 8 predorsal scales to hind end of occipital process; head width If its length; head depth at occiput 1^; snout 3|; eye 2|; maxillary 2|; interorbital 3; first branched dorsal ray 1|; first branched anal ray 1|; least depth of caudal peduncle 2|; upper caudal lobe 1; pectoral Ij; ventral 1|. Body moderately long, compressed, of robust appearance, deepest at dorsal origin, back very slightly elevated, and edges all convexly rounded, though slight constriction just before dorsal origin. Caudal » Denk. Ak. Wiss., Wien, XLYI, I, 1883, p. 34. Tabatinga. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 553 peduncle well compressed, its least depth about H in its length measured from last anal ray base. Head moderate, robust, compressed, flattened sides not converg- ing, and upper profile a little more convex than lower. Snout well convex in profile and over surface, well protruded beyond mandible and its length about | its width. Eye large, rounded, high, and centre falls about first | in head. Pupil large, rounded. Eyelids free, narrow, not adipose-like. Mouth inferiorly terminal, broad, with short curved commissure. Maxillary strong, bent, slips below preorbital all along its upper edge, extends well below and slightly beyond front eye edge. Lips thick, fleshy, not free. Teeth rather Fig. IG. — Creagrutus aiiary Fowler. (Type.) large, tricuspid or quincuspid. Upper jaw with. 3 series of large teeth, forming considerable dental area. Mandible with single series of teeth, large, quincuspid, subequal. Maxillary with several small denticles, simple, and appear as continuation of upper inner- most teeth. Inner buccal folds broad. Tongue depressed, rounded and free in front. Mandible obtuse, strong, and rami short and low. Nostrils together close before eye, anterior simple and posterior crescentic. Suborbitals broad, nearly cover cheek, only slight naked strip below. Hind edge of preopercle straight, inclined slightly posteriorly. Opercle deep, narrow, upper hind edge notched. Parietal-frontal fontanel well developed, extends to occipital process, and latter about \ to dorsal origin. Gill-opening extends forward opposite front pupil edge. Rakers 37 554 PROCEEDINGS OF THE ACADEMY OF [Oct., 6 + 16, slender, lanceolate, much less than filaments, and latter about f of eye. Isthmus narrowly constricted in front, broad behind, and surface convex. Branchiostegals moderate, subequal. Scales moderate, well exposed in longitudinal series parallel with 1, 1., each with a few radiating strise, and of mostly uniform size. Caudal covered with a number of small scales over greater basal portion. Scales large along anterior base of dorsal and form sheath, and similar ones on anal. Ventral with free pointed axillary scaly flap, its length nearly | that of fin. L. 1. complete, slightly decurved till about f in greatest body depth, and extends a little low along side of caudal peduncle to median caudal base. Tubes simple, moderately exposed anteriorly. Dorsal origin about midway between snout tip and hind edge of adipose fin, first branched ray longest, and depressed fin reaches 2j to caudal base. Adipose fin placed over last anal rays basally, or about last | in space between dorsal origin and caudal base, fin about equals eye. Anal inserted close after dorsal base, first branched ray longest, though with other anterior anal rays not forming distinct lobe. Caudal well forked, lobes longer than head, broad, pointed, equal, and rudimentary rays well developed. Pec- toral low, rounded, upper rays longest and extend | to ventral origin. Ventral inserted slightly behind dorsal origin, and extends back to anal origin. Vent about last f in postventral space. Color in alcohol very pale brownish generally. Edges of scales on back dotted with brownish, though no median dark streak. Upper surface of head brownish, sides, muzzle, and lower surface whitish. Iris slaty. Above third scale of 1. 1. vertical dusky humeral blotch, its vertical diameter about equal to pupil. Evidently a silvery lateral streak, narrow, and best defined posteriorly. A narrow dark underlaid streak, made up of dusky dots, vertebral along side of body, begins opposite tip of depressed pectoral and extends to median caudal base, and most distinct in median part of its course. Slight dusky spot at bases of median caudal rays, and lower lobe sprinkled with minute dusky dots. Upper or apical portion of dorsal sprinkled with dusky dots. Fins, otherwise than noted above, pale or whitish. Length 42 mm. Type, No. 39,290, A. N. S. P. Madeira River, about 200 miles east of Long. W. 62° 20', Brazil. September, 1912. Edgar A. Smith. Also No. 39,291, A. N. S. P., paratype, same data. Head 3^; 1913.] NATURAL SCIENCES OF PHILADELPHIA. 555 depth 3|; D. ii, 8; A. iii, 11, i; scales 36 in 1. 1. to caudal base, and 4 more on latter; 5 scales above 1. 1.; 3 scales below 1. I. to ventral origin; 3 scales below 1. 1. to anal origin; 9 scales before dorsal to occipital process; snout 3f in head; eye 3; maxillary 2|; interorbital 3; length 34 mm. It appears related to Creagndus affinis Steindachner,'' Creagrutus magdaleiue Eigenmann/ and Creagrutus hrevipinnis Eigenmann,* all of which, however, have no dark caudal spot. Creagrutus avary has three teeth, rather enlarged, forming its posterior premaxillary series. {Anary, the native name.) Bryconamericus jacunda sp. nov. Fig. 17. "Jacunda." Head 3^; depth 3; D. ii, 8; A. iii, 23, i; P. i, 10; V. i, 8; scales 35 in 1. 1. to caudal base and 3 more on latter; 5 scales above 1. 1.; 4 scales below 1. 1. to ventral origin, or to anal origin; 12 predorsal scales; head width 2 in its length; head depth at occiput 1^; snout 4; eye 2f ; maxillary 2f ; interorbital 2^; first branched dorsal ray lyV; first branched anal ray If; least depth of caudal peduncle 2|; pectoral lyV; ventral 1|. Body elongate, moderately compressed, lower profile a little more convex than upper, greatest depth at dorsal origin, and edges all convexly rounded. Caudal peduncle well compressed, length about f its least depth. Head moderately large, compressed, profiles convex with upper a little more bulging, and flattened sides very slightly constricted below. Snout convex over surface and in profile, short, and its length half its width. Eye large, rounded, though deeper vertically than horizontal width, midway in- head depth, and hind pupil edge about midway in head leng-th. Pupil vertically ellipsoid. Eyelids narrow, free, not adipose-like. Mouth small, terminal, broad, very short in commissure. Lips thick, fleshy, firm. Maxillary slender, oblique, extends back about opposite front eye edge, free distally short extent, and upper edge largely slips below preorbital. Teeth quincuspid, with median point to each largest. Upper teeth biserial, outer in an irregular row of small ones, and inner row of 5 large, broad ones. No maxillary teeth. Mandible with single series of large teeth in front. Inner buccal folds broad. Tongue broad. 6 Denk. Ak. Wiss., Wien, XLII, 1884, p. 27. Cauca, near Caceres, Colombia. ^ Indiana Univ. Studies, March, 1913, p. 8. Girardot, Honda, Penas Blancas, and Apulo, Colombia. 8 L.c, p. 10. Piedra Moler, Paila, Cartago, Colombia. 556 PROCEEDINGS OF THE ACADEMY OF [Oct., depressed, free and rounded in front. Mandible robust, convex, strong, rami not elevated in mouth, and upper jaw moderately protruded beyond when mouth closes. Nostrils together, large, close before eye above, anterior simple pore and posterior crescent ic. Interorbital broadly convex. Preorbital narrow. Infraorbital broad, smooth, completely covers cheek. Hind preopercle edge vertical. Opercle deep, smooth, hind edge above slightly emarginate. Broad fontanel from between frontals and parietals to occipital process, latter short and triangular. Gill-opening extends forward about opposite first | in eye. Rakers about 5+9, slender, lanceolate, much less than filaments, and Fig. 17. — Bryconamericus jacimda Fowler. (Tj'pe.) latter about | of eye. Isthmus constricted, surface convex. Branchi- ostegals large, subequal. Scales moderate, moderately imbricated, disposed in longitudinal series parallel with 1. 1., those on middle of side little larger than others. Caudal with greater portion basally covered with small close-set scales. Anal with bSsal series of scales its whole extent, though graduated smaller posteriorly. Ventral with free pointed axillary scaly flap about I length of fin. L. 1. complete, decurved till about f in greatest body depth, and extends a little low along caudal peduncle side till midway at caudal base. Tubes simple, and each one extends anteriorly on scale exposure about f its extent. Dorsal origin about midway between front eye edge and caudal 1913.] NATURAL SCIENCES OF PHILADELPHIA. 557 base, first branched ray longest, and fin extends back If to caudal base. Adipose fin elongate, its base over last anal ray bases. Anal well anterior, inserted little behind dorsal origin, anterior rays elevated with first branched longest, though not forming distinct lobe, rays being graduated down behind with straight edge. Caudal longer than head, well eraarginated or forked, and pointed lobes about equal. Pectoral long, pointed, low, upper rays longest, and depressed fin extends back about f to anal origin. Ventral inserted about last f in space between pectoral and anal origins, and extends back a little beyond front of anal. Vent close before anal. Color in alcohol pale brownish generally. Back and sides sprinkled with numerous dusky dots, these also extend over anal basally, and over most of caudal. Area above 1. 1. to about seventh scale of its course pale or not dusted with dark dots, except on third and fourth scales a vertical streak equal to vertical eye-diameter extends upward slightly inclined posteriorly, and this streak made up of dark larger dots. Head brownish above, sides, muzzle, and below paler or whitish. Iris slaty. Except as noted above, fins pale. Median streak of dull brownish dots down back. Pale lateral vertebral line of dark dots begins on dotted part of side and continues to caudal base, where evidence of faded or pale dusky blotch medianly. Length 31 mm. Type, No. 39,292, A. N. S. P. IMadeira River, about 200 miles east of W. Long. 62° 20'. Brazil. September. 1912. Edgar A. Smith. Only the type known. Brijconamericus alburnus (Hensel) differs in the smaller head (4f), though agrees in the absence of maxillary teeth, scales, etc. (Jacunda, the native name.) Bryconamericus smithi sp. nov. Fig. 18. Head 4; depth 2|; D. ii, 7; A. iii, 25, i; P. i, 10; V. i, 7; 37 scales in 1. 1. to caudal base and 2 more on latter; 6 scales above 1. 1.; 4 scales below 1. 1. to ventral origin; 5 scales below 1. 1. to anal origin; 14 predorsal scales; head width 1| its length; head depth at occiput liV; snout 3h; eye 2f; maxillary 2; interorbital 2|; first branched dorsal ray 1; least depth of caudal peduncle 2|; first branched anal ray 1|; pectoral 1|; ventral 1|. Body moderately long, of ovoid contour with lower profile a little more convex anteriorly, greatest depth at dorsal origin and edges all convexly rounded, except trenchant post ventral. Caudal peduncle compressed, about long as deep. 558 PROCEEDINGS OF THE ACADEMY OF [Oct., Head rather small, well compressed, profiles similarly and slightly convex, and flattened head sides slightly constricted below. Snout convex over surface and in profile, length about f its basal width. Eye large, rounded, slightly elevated, centre about first f in head length. Eyelid free, without adipose-like development. Pupil rounded. Mouth broad, with short commissure. Maxillary largely free, slender, well inclined, extends back slightly beyond front eye edge, though not quite to that of pupil. Lips fleshy, not free. Upper teeth biserial, outer row of small unevenly arranged teeth in a wavy line and deeply imbedded, appearing as single cusps or tricuspid, the outer cusps being quite small. Inner upper row of Bryconatnericus smithi Fowler. (Tj'pe.) t(.eth large, broadly triangular, quincuspid, 6 in number. No maxillary teeth. Mandibular teeth uniserial, quincuspid, and .suddenly stopping along front of rami, so that posterior teeth, if present, very small. Mandible moderate, included so snout slightly protrudes beyond closed jaws, convex, and rami not elevated inside mouth. Inner buccal folds moderate. Tongue depressed, rounded and free in front. Nostrils together close before upper front rim of eye, anterior simple pore and posterior much larger and broadly crescentic. Interorbital broadly convex. Suborbitals large, espe- cially infraorbital, and completely 'covering cheek. Hind preopercle ridge nearly vertical, entire. Opercle deep, smooth, its upper pos- terior edge not emarginate. Occipital fontanel broad, extends 1913.] NATURAL SCIENCES OF PHILADELPHIA. 559 from frontals to occipital process, and latter siiort, narrowly tri- angular. Gill-opening extends forward about opposite front edge of pupil. Rakers about 7+10?, slender, lanceolate, much less than filaments, and latter about | of eye. Isthmus narrowly constricted, surface convex. Branchiostegals rather large, subequal. Scaler moderately small, disposed in longitudinal series parallel with 1. 1., each well exposed, cycloid, and of mostly uniform size. Along base of anal on trunk scales become smaller, and along base of anal its entire length a series of scales, which larger anteriorly and diminishing posteriorly. Caudal base scaled, and lobes of fin also covered with small scales over greater portions. Free pointed axillary scaly flap to ventral j length of fin. L. 1. complete, slightly decurved till f in greatest body depth, extending a little low along side of caudal peduncle 'till reaching caudal base medianly. Tubes simple, extend over first half of scale at least. Dorsal origin midway between snout tip and caudal base, first branched ray longest, with depressed fin extending half way to caudal base. Adipose fin slender, about 1| in eye, its origin about last y in space between dorsal origin and caudal base. Caudal well forked, lobes pointed, similar, equal. Anal inserted well forward, nearly midway between centre of eye and caudal base, first branched ray longest and with anterior rays elevated slightly, though not forming distinct lobe, and base long and straight. Pectoral low, upper rays longest, pointed, and depressed fin extends back slightly beyond ventral base. Ventral inserted well before dorsal, reaches anal. Vent close before anal. Color pale brownish generally. Back and trunk above anal finely dotted with, dull or pale dusky. Median pale lateral streak from eye to caudal base, less than eye diameter in width. Shoulder with large pale area, within which vertical, narrow, dusky streak about equal to eye diameter. A narrow pale dusky vertebral lateral streak posteriorly forms upper boundary of silvery lateral streak. Fins all pale or grayish. No caudal blotch. Head brownish above, silvered or whitish on sides and below. Iris silvery with dusky ver- tical streak. Teeth pale. Length 35 mm. Type, No. 39,293, A. N. S. P. Tributary of the Madeira River near Porto Velho, Brazil. January-February, 1913. Edgar A. Smith. Also, Nos. 39,294 to 39,298, A. N. S. P., paratypes, same data. 560 PROCEEDINGS OF THE ACADEMY OF [Oct., Head 3f to 3|; depth 3 to 3^; D. ii, 7 or ii, 8; A. iii, 24, i to iii, 27, i; scales 34 to 36 in 1. 1. to caudal base and 2 or 3 more on latter; 6 scales above 1. 1.; 5 scales below 1. 1. to anal origin; 12 or 13 pre- dorsal scales; snout 3| to 3f in head; eye 2^ to 2|; maxillary 2} to 24; interorbital 2f to 2f ; length 24 to 33 mm. Closely related to the preceding specie-, though apparently differs in the smaller head and deeper body. (Named for Mr. Edgar A. Smith.) CHALCIN.E. Chalcinus angulatus (Agassiz). Five from the Falls of Guajaramirim, Madeira River, approxi- mately Lat. S. 10° 47', Long. W. 65° 23', Brazil. September, 1912. One young example from the Madeira River near Porto Velho, Brazil. January-February, 1913. GASTEROPELECIN.E. . Gasteropelecus securis Filippi. One from the Madeira River, about 200 miles east of W. Long. 63° 54', Brazil. September, 1912. Five from tributary of Madeira River near Porto Velho, Brazil. January-February, 1913. These specimens all appear to be identical with Filippi's account.^ They also agree with examples I have studied, from Pebas and the Ambyiacu River, as Gasteropelecus stellatus Kner,'" and thus fall within my subgenus Thoracocharax. - GNATHOCHARAX gen. nov. Type Gnathocharax steindachneri sp. nov. Body elongately ovoid, profiles unlike anteriorly, upper straight and lower convex. Preventral with median keel, over which scales pass. Head rather upturned. Snout short, broad. Eye very large, with free eyelids. Mouth terminal above. Maxillary very oblique, elongate. Teeth uniserial in jaws, none on maxillary and mandible with several canines. Mandible slightly project?. Inter- orbital low. Gill-rakers lanceolate, 3+9, long. Scales large, cycloid. Caudal and anal bases scaly. Lateral line incomplete, only on few scales from shoulder. Dorsal inserted posteriorly, moderate. Adipose fin placed over last anal rays. Anal long, ^Rev. Mag. Zool, 1853, p. 165. Rio Napo. ^^Proc. Acad. Nat. Sci. Phila., 1906, p.. 4.52. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 561 inserted little before dorsal. Caudal well forked. Pectorals large, falcate, reach back well beyond dorsal base. Ventrals small. No humeral blotch. Caudal with black blotch. Small fishes of the Amazon basin. They are remarkable for the simple dentition, in this respect differing from the rest of the members of this subfamily. They also suggest certain Characince, as Asiphon- ichthys, though differ in the larger pectorals and conic teeth. Pos- sibly they are more closely allied with Pseudocorynopoma of the present subfamily, but differ in the incomplete lateral line, as well as the dentition. (/Vacyoc, jaw; Xafia':^ Cliarax; with reference to the long maxillary.) Gnathocharax steindachneri sp. nov. Fig. 19. Head 3|; depth 3i; D. ii, 6, i; A. iii, 31, i; P. i, 15; V. i, 7; scales 33 in median lateral series to caudal base and 2 more on latter ; 10 scales transversely between dorsal origin and that of anal; 14 predorsal scales; head width 1| in its length; head depth at occiput 1^-; mandible 1^; first branched dorsal ray 1^; first branched anal ray \\; least depth of caudal peduncle 3^; ventral 2; snout 4| in head measured from upper jaw tip; eye 2\; maxillary 1^; inter- orbital 3|. Body elongate, greatly compressed, deepest at dorsal origin, upper predorsal profile nearly straight and little inclined, and lower anterior profile well curved convexly. Upper edges convex, preventral largely convex with slight median keel and postventral constricted. Caudal peduncle well compressed, about long as deep. Head moderate, well compressed, upper profile straight and little inclined, lower profile well inclined convexly, and rather convex sides slope evenly above and below. Snout short, near/y straight in profile, convex over surface, and length about half its width. Eye large, rounded, little elevated, and centre slightly anterior to middle in head length. Pupil moderatelj^ large, rounded. Eyelids free, not adipose-like. Mouth large, superiorly terminal. Maxillary very long, slender, slips below preorbital edge most of its length, extends down below eye till opposite last | in eye diameter, and. its greatest expan'^ion about 5 in eye. Lips thin, firm, little developed. Teeth uniserial in jaws, conic, somewhat irregular, sharply pointed, and rather short. Mandible with 3 pairs of wide-set canines anteriorly. No maxillary or palatine teeth. Inner buccal folds moderate. Tongue rather small, depressed, a little elongate, nearly truncate, and free in front. Mandible slightly protrudes when closing, strong, rather shallow with convex surface and rami not elevated inside 562 PROCEEDINGS OF THE ACADEMY OF [Oct., mouth. Nostrils together, large, close before eye, anterior simple pore and posterior broadly crescentic. Interorbital broadly convex. Preorbital narrow. Infraorbital broad, smooth, large, completely €overs cheek. Hind edge of premaxillary entire, well inclined for- ward. Opercle smooth, rather broad, and hind edge scarcely emar- ginate. Top of head with large fontanel, begins on interorbital nearly opposite front edge of nostril and extends back to occipital process. Latter short and triangular. Gill-opening extends forward opposite front pupil edge. Rakers 3+9, lanceolate, slender, nearly twice length of filaments or about Fig. 19. — Gnathocharax steindachneri Fowler. (Type.) \ of eye diameter. Isthmus narrowly constricted, surface convex. Branchiostegals rather short, subeciual. Scales rather large, cycloid, well exposed in lengthwise series, those on predorsal rather oblique and somewhat more imbricated, and all of more or less uniform size. Caudal base scaly. Row of small scales along base of anal anteriorly. No axillary ventral scaly flap. L. 1. incomplete, comprises six simple tubes or series of scales from shoulder, each tube only extending over first half of scale exposure. Dorsal origin about opposite eye centre and caudal base, first branched ray longest, and depressed fin extends slightly over half 1913.] NATURAL SCIENCES OF PHILADELPHIA. 563 way to caudal base. Adipose fin equals about f eye diameter, inserted near last fourth in space between hind pupil edge and caudal base. Anal inserted slightly before dorsal origin, first branched ray longest, together with anterior rays, which elevated, forms pointed lobe. Caudal a little longer than head, well forked, and lobes pointed, upper slightly longer. Pectoral enlarged, about equals length of head and an eye diameter, moderately low in its insertion, upper rays longest. Ventral small, inserted about midway between mandible tip and origin of adipose fin. ^>nt close before anal. Color in alcohol pale brownish generally, paler on under surface. Head brownish above, whitish below. Muzzle brownish, though only including upper half of mandible. Suborbitals with rather large, wide-set brownish dots. Iris slaty. Opercles and flanks dusted with brownish, and behind dusky narrow lateral vertebral blackish line to caudal base, which latter entirely blackish, though area included less than eye. Median streak down back dusky, also edges of scales on back sprinkled with minute dusky dots. Along base of anal and close above on trunk, though nearly parallel, line of dusky dots. Fins all pale, sprinkled with dusky dots on outer portions. Adipose fin pale. Length 33 mm. Type, No. 39,309, A. N. S. P. Igarape de Candelaria, tributary of the Madeira River, and approximately two miles distant, in Lat. S. 8° 45' W., Long. 63° 54', Brazil. September, 1912. Edgar A. Smith. No. 39,310, A. N. S. P., paratype Madeira River about 200 miles east of W. Long. 62° 20', Brazil. September, 1912. Edgar A. Smith. No. 39,311, A. N. S. P., paratype. Tributary of the Madeira River near Porto Velho, Brazil. January-February, 1913. Edgar A. Smith. (Named for Dr. Franz Steindachner.) CHARACIN^. TYTTOCHARAX gen. nov. Type Tyltocharax madeirce sp. nov. Body oblong, well compressed. Head moderate. Snout short. Eye large, without adipose eyelids. Mouth broad, short. Maxillary free, oblique, with few simple conic teeth. Teeth in jaws conic, in bands, and some externally similar ones on lips. Few symphyseal teeth canine-like. Interorbital broad. Occipital process short and triangular. Gill-membranes free from isthmus. Rakers minute. 564 PROCEEDINGS OF THE ACADEMY OF [Oct., Scales large, cycloid, well exposed, extend on caudal base and form anal sheath basally. No 1. 1. Dorsal fin inserted behind middle in body length. Adipose fin moderate. Caudal moderately forked, lobes equal. Anal inserted before dorsal origin, with moderate basis. Pectoral long, pointed, passes ventral base. Ventral not reaching anal. Dark lateral streak. Shoulder and caudal each with dark blotch. Minute fishes of the Madeira River basin. They show affinity with certain of the Tetragonopterinx in the large scales, but the conical teeth and external tooth-like processes are more features of the present subfamily. One species. ('/'utOo?^ tiny; .A'«/>«l, Charax.) Tyttooharax madeirse sp. nov. Fig. 20. Head 3|; depth 3; D. ii, 7; A. ii, 16; P. i, 9; V. i, 7; scale? 30 in median lateral series to caudal base, and 2 more on latter; 10 scales transversely between dorsal and anal origins; 10 predorsal scales; head width 1| in its length; head depth at occiput 1|; snout 4; eye 2|; maxillary 3; interorbital 2f ; first branched dorsal ray 1^; first branched anal ray 1|; least depth of caudal peduncle 2|; lower caudal lobe 1; pectoral 1^; ventral If. Body moderately long, well compressed, lower profile more convex anteriorly than upper, postventral trenchant, and other edges con- vexly rounded. Caudal peduncle compressed, about long as deep. Head moderate, compressed, lower profile more convex and inclined than upper, and its flattened sides slightly constricted below. Snout short, convex over surface and in profile, length abqut half its width. Eye large, rounded, rather high, and hind edge of pupil about midway in head length. Pupil rounded, moderate. Eyelids free, not adipose-like. Mouth broad, short and inclined in commis- sure. Lips firmly fleshy. Maxillary well inclined, slender, free, extends down opposite lower eye margin and slightly beyond anterior eye margin, though not nearly to front pupil edge. Teeth all conic, simple, moderately large, in bands in jaws, and outer mostly with appearance as if imbedded in lips. Some of teeth at symphyseal region slightly recurved and enlarged a little, appearing somewhat canine-like. On lips a number of denticles or tooth-like structures protruded through the integument. Maxillary with a few irregular small and inconspicuous teeth along upper edge. Apparently no other teeth. Buccal fold moderate inside mouth. Tongue de- pressed, rounded and free in front. Mandible small, strong, shallow low rami not elevated inside mouth, and when closed very slightly 1913.] NATURAL SCIENCES OF PHILADELPHIA. 565 protrude beyond snout tip. Nostrils together, large, anterior simple pore, posterior larger, crescentic. Interorbital broadly convex. Infraorbital broad, covers cheek. Hind preopercle edge nearly vertical. Opercle smooth, deep, hind edge rounded. Fon- tanel broad, extends from frontals to occipital process. Gill-opening extends forward about opposite front pupil edge. Rakers a few minute points. Filaments about | of eye. Isthmus moderately constricted, its surface convex. Branchiostegals mod- crate, subequal. Scales large, well exposed in lengthwi«!e series, cj'cloid, and of mostly uniform size, along base of anal extending out without Fig. 20. — Tijltocharaz madeirw Fowler. (Type.) % similar one forks out below eye to opercle. Fins all largely pale. or whitish. Caudal whitish, filaments grayish, and along upper, concurrently blackish streak. Along side of caudal peduncle at junction of each scute small, rounded, whitish spot. Length to caudal base 100 mm., to end of caudal filaments 173 mm. Type, No. 39,313, A. N. S. P. Madeira River, about 200 miles east of W. Long. 62° 20', Brazil. 1912. Edgar A. Smith. Also No. 39,314, A. N. S. P., paratype. Tributary of the Madeira River near Porto Velho, Brazil. January-February, 1913. Edgar A. Smith. This specimen is quite small, though is apparently the young. Only the above examples known. The species is related to Farlowella gladuis (Boulenger),^^ Farlowella oxyrhynchus (Kner),^' and Farlowella natter eri Steindachner.^* From the first two it differs in the larger eye and in the shorter pectoral and presence of four scutes between the pectoral origins. (Named for Mr. Edgar A. Smith.) OIOHLID^. .Equidens madeirae sp. nov. Fig. 25. Head 3yV; depth 2§; D. xvi, 9, i; A. in, 8; P. i, 14; V. i, 5; scales 18 in upper branch of 1. 1.; 4 scales between spinous dorsal origin and 1. 1.; 2 scales between rayed dorsal origin and 1. 1.; 6 scales obliquely back from anal origin to beginning of lower branch of 1. 1.; 9 predorsal scales; head width 1| in its length; head depth at occiput 1; snout 3yo; eye 3|; maxillary 4|; interorbital 3; mandible 2f ; sixth dorsal spine 2; sixteenth dorsal spine 2\; fifth dorsal ray If; third anal spine 2|; fourth ray If; least depth of caudal peduncle 2|; caudal 1; pectoral lyV; ventral 1|. Body rather ovoid in contour, well compressed, back well elevated with upper profile more convex than lower profile, and greatest depth about opposite tip of depressed ventral spine tip. Body edges all rounded convexly, except very obsolete median predorsal keel. Caudal peduncle well compressed, about long as deep. Head moderate, well compressed, upper profile more inclined than lower, very slightly concave before eye above, and lower profile little inclined. Sides of head slightly convex, and sloping off in ^"^ Acestra gladius Boulenger, Trans. Zool. Soc, London, XIV, 1897, p. 425, PI. 41, fig. 2. Rio Jurua. ^^ Acestra oxyrhynchus Kner, Denk. Ak. Wiss., Wien, VI, 1853, p. 95, PI. 8, fig. 2. 1* Annul. Naturh. Hofmus., Wien, 1910, p. 403. Middle Amazon (possibly Rio Negro). 1913.] NATURAL SCIENCES OF PHILADELPHIA 577 similar convex fashion above and below. Snout convex over surface and in profile, and its length about f its width. Eye circular, well elevated, close to upper profile, and hind pupil edge about midway in head length. Eyelid free, narrow. Pupil circular. Mouth rather small, a little broad, commissure slightly inclined forward. Muzzle rather prominent, somewhat protruded downward, and jaws equal. Premaxillaries very protractile. Maxillary narrow, extends about f in snout length, and largely concealed by preorbital. Lips moderate, fleshy, firm, at corners of mouth form rather thick Fig. 25. — Mquidens madeirce Fowler. (Type.) fold. Jaws with an outer series of slightly enlarged, conical, curved teeth, followed by a moderate inner band of smaller villiform teeth. No other teeth. Upper buccal folds present inside mouth, moderate, lower not developed. Tongue thick, fleshy, rather conic end not free. Mandible shallow, rami low, surface convex. Nostrils small, anterior trifle larger, about last f in snout length, and posterior small pore opposite front eye edge above within interorbital. Inter- orbital broadly convex. Hind preopercle edge slightly undulated, inclined forward, its entire extent minutely serrated. Membrane along hind edge of gill-opening narrow. Gill-opening extends forward about midway in head. Rakers 578 PROCEEDINGS OF THE ACADEMY OF [Oct., 1+7, short, weak, fleshy stumps, about 4 in filaments, and latter 2 in eye. No pseudobranchiae. Isthmus constricted until extremely narrow in front, convex broadly behind. Branchiostegals rather long, narrow, subequal. Scales rather large, well exposed, finely ctenoid, in longitudinal series, and slightly smaller on breast than elsewhere on trunk. Fins scaleless, except caudal base, and that covered with numerous small scales. Head largely naked, except 4 series of scales on cheek, 6 rows on opercular region, and scaly occipital region. No pointed axillary scaly flaps. Mandible below with 4 pores on each ramus, and along preopercular edge 4 more large pores. L. 1. interrupted below front of soft dorsal, begins at shoulder and curves up until level with upper eye edge, and then sloping gradually and slightly down rest of its course. Lower portion of 1. 1. begins opposite end of upper, about level with lower eye edge, straight or horizontal and extending out on caudal base. Tubes simple, well exposed, and mostly extending to hind edges of scales. Spinous dorsal inserted nearer snout tip than first third of space comprised in combined head and trunk length, spines graduated up to sixth, after which all subequally a trifle shorter to last. Edge of spinous dorsal deeply notched, tip of each spine with a well-developed cutaneous flap. Rayed dorsal with median rays longest, forming rather well-defined point, begins before end of upper 1. 1., and edge entire. Spinous anal inserted opposite fourteenth dorsal spine base or a trifle nearer ventral origin than caudal base, spines graduated up to third which longest, membranes notched and tip of each spine with a well-developed free cutaneous flap. Rayed anal like rayed dorsal, though origin of fin slightly before origin of rayed dorsal. Caudal with hind edge convex, median rays longest. Pectoral large, rather long, reaches about | to anal. Ventral inserted about midway between snout tip and anal origin in vertical, entirely behind pectoral base, when depressed not quite reaching anal, and rather strong spine about If in fin. Vent placed at last sixth in space between ventral and anal origins. Color in alcohol with ground-color brownish above or on back, becoming paler below, more or less whitish on under surface of head, breast, and belly. Head brownish above, like back. Dusky-brown bar, broader than pupil extends up each side of snout from mouth to eye, bordered above and below with paler, of which latter most contrasted. From upper hind eye edge dark streak narrower and continued to suprascapula. From lower eye edge till down behind 1913.] NATURAL SCIENCES OF PHILADELPHIA. 579 €nd of maxillary pale brownish streak, narrower than pupil in width and also with pale lower border. Opercle and cheek brownish. Predorsal scales, and those on back above 1. 1., with pale brownish lengthwise streaks over or between upper and lower boundaries of scale exposures. Back with eight dusky-brown saddles, gradually smaller until only evident as viewed from above at caudal peduncle, though four extend slightly below course of upper 1. 1. Ill-defined ■dusky streak along middle of side, extends to caudal base medianly, marked with six dusky-brown large blotches through its extent, and these alternating with dorsal saddles. At caudal base median lateral band reflected out on median caudal rays. Iris slaty, though traversed by dark band from snout. Dorsals grayish, spinous fin very obscurely mottled sparsely with paler, and on rayed fin 5 or 6 transverse broad whitish streaks form. Caudal, except as noted, pale, with several series of dark spots on membranes, most distinct within dark area distally extending from lateral streak. Other fins all pale grayish. Length 68 mm. Type, No. 39,315, A. N. S. P. Igarape de Candelaria, tributary of the Madeira River, approximately two miles distant in Lat. S. 8° 45', W. Long., 63° 54', Brazil. September, 1912. Edgar A. Smith. Only the type obtained. It is related to Mquidens tetramerus (Heckel), in the 4 series of scales on the cheek, and scaleless preopercle, characters shared equally with ^. rivulatus (Giinther) and ^. geayi (Pellegrin). It differs from all, however, in coloration. (Named for the Madeira River.) TETRODONTID^ . -ColomeSUS psittaCUS (Schneider). Three small examples from the Madeira River about 200 miles .east of W. Long. 63° 54', Brazil. September, 1912. 580 PROCEEDINGS OF THE ACADEMY OF [NOV.^ November 4. Mr. Charles Morris in the Chair. Nine persons present. The presentation of a paper entitled " Contribution to the x\natomy of the Ilysiidae," by Joseph C. Thompson, Surgeon U. S. N., was reported. The death of Philip R. Uhler, a member, October 21, was announced. November 18. The President, Samuel G. Dixon, M.D., LL.D., in the Chair. The Publication Committee reported the reception of papers under the following titles: — • " On the Orthoptera found on the Florida Keys and in extreme Southern Florida. II." By James A. G. Rehn and Morgan Hebard (November 7). "Notes on some Costa Rica Arachnida." By Nathan Banks (November 14). The Chair announced the death of Prof. Arnim Balzer, a corre- spondent, November 4, 1913. The following were elected members: Harvey Stamp, M.D. Herbert H. Gushing, M.D. J. Ewing Mears, M.D. The meeting was held in association with the Biological and Microscopical Section. The Collecting and Preparation of Diatoms. — Mr. T. Chalkley Palmer, prefacing his remarks on collection and preparation of diatoms, deplored the threatened extinction of the amateur, especially in branches of science involving the use of the microscope. He men- 1913.] NATURAL SCIENCES OF PHILADELPHIA. 581 tioned illustrious amateurs, both living and dead, whose work has added greatly to our knowledge of nature. The abundance of diatoms in clear waters was indicated, and ap- paratus useful in making collections were exhibited and described. Methods of separating diatoms into pure condition were explained in outline, and those depending on motile activity were emphasized as preferable in many cases to chemical treatments and laborious •decantations. Sedentary forms, such as Synedra, growing on algae, etc., may often be separated by exposing the gathering to sunlight, when the diatoms fall off the buoyant mass and deposit as a perfectly clean layer on the bottom of the bottle. Filamentous forms may usually be cleaned by gentle agitation in distilled water, exposure to sunlight causing flotation, and by other similar means. Motile forms, if in gelatinous aggregates, as Cijmbella, Gotnphonema, are put into a Petri dish with distilled water and permitted to wander out of the unpromising aggregate into thin films or pure groupings on the bottom of the vessel. Unequal lighting of the dish will generally cause preponderant groupings toward the light. The clean frustules are transferred to watch-glasses of distilled water, working with a capillary pipette and low-power binocular microscope. Tenacious or leathery layers of Nitzschia, on stones in rapid waters, are cut off with a knife, and after freeing from detachable mud are left in a small flat bottle of distilled water for 24 hours. The diatoms expand on the upright glass walls, especially upon the lighted side, into thin, coherent films of great purity, detachable with a sharp needle or similar instrument. Larger Naviculse not coherent, but aggregated in patches on the bottom of a spring, are lifted with as little mud as possible, and separated from organic and inorganic flocculence in the same bottle; and a separation in course of Pinnularia, was exhibited, in which the large frustules could be seen, with the aid of a pocket lens, expanding on the glass. Distilled water, if well aerated and uncontaminated with metals, especially copper, seems to stimulate the desired activities. The diatoms having been segregated by such means, they are transferred with a capillary pipette to a clean cover-glass, dried and burned to whiteness. The glass is supported on a thin piece of platinum, which in turn rests on a piece of fireclay ground flat. The fireclay is heated to bright redness with a gas burner, the platinum showing only a faint glow. In about fifteen minutes the frustules are free from organic matter, and the mount may be made in the usual way with Canada balsam or styrax. The biological method of cleaning, apart from its facility in handling sparse or unpromising material, gives opportunity for interesting observations on the living diatoms. On Diatoms of Philadelphia. — Mr, Charles S. Boyer described the diatomaceous fiora of Philadelphia, stating that he was able to add seventy-one names to the catalogue of species heretofore re- 582 PROCEEDINGS OF THE ACADEMY OF [NoV.^ corded. Some are entirely new to the United States, while others are quite rare. Among these may be mentioned Actmocyclus barkleyi aggregatu» Rattr., Navicula placenta Ehr., Polymyxus coronalis L. W. Bail, Amphiprora conspicua Grev., Nitzschia clausii Hantzsch. Brackish and marine forms occur in the blue-clay deposits in various parts of the city. Other rare species were described. The entire flora of the city and immediate vicinity numbers probably three hundred distinct species. Illustrations of many diatoms were shown, including some of those found in the city water supply. The Critical Point in Liquids. — Mr. Hugo Bilgram remarked that of the various inclusions found in quartz those of liquid dioxide of carbon are among the most interesting. Within more or less irregular microscopic cavities are inclosed three distinctly visible fluids: water, liquid dioxide, and within this a bubble of dioxide vapor. When the temperature is raised, the liquid dioxide is turned into vapor and the bubble disappears. Upon cooling the object, the vapor bubble suddenly reappears. In many cases not a single, but a number of bubbles make their appearance, making it look as if the inclusion were boiling. How is this phenomenon to be explained? It is well known that water boils when heated to 100 degrees Celsius; but if exposed to a reduced pressure, its boiling point is lower, and if exposed to a pressure higher than that of the atmos- phere, the boiling point is higher. If the relation of the vapor pressure to the temperature is represented by a curve, it can be seen that at a point somewhat over 300 degrees the pressure curve extends to infinity. This shows that above this temperature water cannot exist in liquid form, no matter how high the pressure, and this degree of heat is termed the "critical point." All volatile liquids show the same peculiarity, but the critical point is different for different liquids. That of dioxide of carbon is in the neighborhood of 28 degrees Celsius, and the phenomena above described present the change of dioxide of carbon from the liquid to the gaseous state and vice versa at a temperature which is near the critical point. From the peculiar features of the phenomena very interesting inferences can be derived. There is a sharp distinction between fluids and gases, as we know them, the principal differences being in relation to elasticity, cohe- sion, and expansion by heat. While gases are highly compressible and have a high coefficient of expansion by heat, compressibility of liquids is very slight and expansion by heat not very great. While gases readily expand if the space of their confinement is increased, liquids maintain their volume. In gases there is a total absence of cohesion, while in the case of liquids the molecules cohere. When water or any other liquid is converted into steam, the change from the liquid to the vapor state is abrupt. But the phenomena exhibited 1913.] NATURAL SCIENCES OF PHILADELPHIA. 583 by the dioxide inclusions indicate that when a liquid is heated to its critical point and is finally converted into a gas, it gradually passes from one to the other state. A slight rise in temperature causes the inclosed bubbles rapidly to diminish in size, indicating a high expansion coefficient of the liquid portion. After the bubbles have disappeared, a further advance of temperature does not burst the walls of the cavity, showing the liquid to be compressible. In cooling, the bubble or bubbles suddenly appear of a definite size instead of growing from a mere point. Before that moment the contents of the cavity are no doubt in a liquid condition, otherwise bubbles could not be seen. By cooling the prevailing high pressure is reduced until it falls below the vapor pressure of the dioxide corresponding to the temperature, and there is a tendency to form a small bubble. But its formation is resisted by the cohesion of the molecules. Only after the pre- vailing pressure has been lowered so much that the excess of the vapor pressure is competent to overcome cohesion will a sudden rupture take place, attended by an instantaneous reduction of the volume of the liquid due to the sudden increase of pressure. This accounts for the sudden appearance of bubbles at a definite size. We can therefore conclude that a liquid, when near its critical point, is in a state that is intermediate between the liquid and the gaseous states. Mr. Van Sickle described a method of making detailed labels for microscopic slides by photographic reduction. The following was ordered to be printed: 584 PROCEEDINGS OF THE ACADEMY OF [NoV. NOTES ON THE GEOLOGY OF THE ISLAND OF ANTIGUA. BY AMOS P. BROWN, PH.D. During parts of July and August, 1913, I made a vi^it to the island of Antigua in the hope of finding a place where the Oligocene fauna of the rocks of the island would be in a condition to per- mit of extensive collection. I was in hopes that the fossils would be found in incoherent or soft material as I found them at Panama and as Gabb found them in Santo Domingo. With this in view, I made a rather close examination of practically all places from which fossils had been obtained that were known to the local naturalists of the island. Three weeks were spent on the island and many locaUties were visited. In this search I was aided by Mr. W. R. Forrest, a resident of St. John's, and by Mr. H. A. Tempany, Super- intendent of Agriculture of the Leeward Islands, also of St. John's. To both of these gentlemen I was indebted for many courtesies, and each of them acted as my guide to localities on several occasions. I was not successful in finding any place where the fossiliferous deposits were in a condition permitting of the ready extraction of the specimens, although from what I was able to observe the fauna represented is a large one. The island of Antigua lies in latitude 17° to 17° 10' north and between longitude 61° 40' and 61° 55' west of Greenwich. It lies in the outer row of calcareous islands in the Leeward group, which comprises eastern Guadaloupe (Grande Terre), Marie Galante, Antigua, Barbuda, St. Bartholomew, St. Martins, Anguilla and Sombrero. It measures about 9| miles from north to south and 12 miles from east to west, with a coast-line of some 70 miles and an area of 108 square miles. The*hape of the island is roughly trape- zoidal or nearly triangular, the coast-line is deeply indented by bays on the northeast and east sides, with Willoughby Bay at the southeast corner, English and Falmouth Harbors on the south coast, and Morris Bay, Five Islands Harbor and St. John's Harbor on the west side. Numerous smaller bays and roadsteads have received names and are used by the coasting boats calling at points along the south and west shores. The surface of the island is roughly divided into 1913.] NATURAL SCIENCES OF PHILADELPHIA. 585 three regions by the Central Plain, which extends diagonally across the island from St. John's Harbor in the northwest to Willoughby Bay in the southeast; a region that is generally flat and at no great elevation above the sea, but with several hills rising from the plain to an altitude of 200-350 feet. To the northeast of this Central Plain is the marl or limestone belt, a region of undulating land at a somewhat higher elevation than the Central Plain (150-200 feet), with hills rising to 250 up to 350 feet; and in the southeast, in St. Philip's Parish, to an elevation of above 400 feet. To the southwest of the Central Plain is the more mountainous part of the island, the distinctly volcanic portion, where the hills rise to an elevation in some cases of more than 1000 feet. The highest of these hills is Boggy Peak, with an elevation stated as 1360 feet, and several others, as Bottle Peak and McNish Mountain, reach 1000 feet. These hills are of volcanic materials and show, as Spencer points out, the erosion features of a mountain plateau region, with narrow ridges separating the valleys. No distinct volcanic cone exists in this part of the island, but several hollows in the hills have been described as volcanic craters. It is doubtful if any crater is still in a recognizable state in the island. The hills around Five Islands Harbor are of the same volcanic materials as those in the southwest of the island, but here again there is no definite crater, unless indeed the basin of the harbor represent such a one. Southwest of the Central Plain the ground is too hilly to allow of large continuous cultivations such as are found in the Central Plain and in the limestone country to the northeast, and in this volcanic portion extensive cultivation has been largely abandoned, although the woods have been mostly cut off for fire wood. The rest of the island is and has been under cultivation for a long period mostly in sugar cane, and, like all of these sugar-producing islands, the land is held by large estates. The only considerable town is the capital, St. John's, where there is a hotel. Access to outlying localities must be had mainly by driving. In this way I visited points along the coast and certain places in the interior. Such localities as could be reached by walking from St. John's were also visited. As the island is not large, the three weeks spent at St. J(ihn's enabled me to visit most of the localities where fossils were likely to be met with. I was also able to examine collections of the rocks of the island at the office of Mr. Tempany, and Mr, Forrest presented me with specimens of the landshells and some fossils. To compare with the marine shells found in the soil of the Central Plain, collections were made of the marine fauna along the shores 39 586 PROCEEDINGS OF THE ACADEMY OF [NoV., of St. John's Harbor and north to Corbizon Point. The land shells now living in the island were collected (when encountered) for comparison with the faunas of neighboring islands, but this collection is probably not complete. Upon the field notes and observations on the geology the following description of the geology of Antigua is based. The first notice of the geology of the island of Antigua appeared in 1819 as a preliminary paper in the American Journal of Science,^ by Dr. Nicholas Nugent, of Antigua, but this was followed two years later by a fuller paper by Dr. Nugent, entitled, ''A Sketch of the Geology of the Island of Antigua, "^ published in the Transactions of the Geological Society of London. Dr. Nugent's paper was communicated to the 'Geological Society on November 5, 1819, and was accompanied by a collection of rocks and fossils to illustrate the paper; of which collection the fossil corals have been studied about forty years after their presentation by P. Martin Duncan. The moUusks have never been worked over and a list of the species published. Later, in 1839, Professor S. Hovey, of Yale and Amherst Colleges, visited the island, and with Dr. Nugent as guide, examined some of the principal localities. Upon his return to America he published a paper ^ on the ''Geology of Antigua," compiled, as he himself states in this communication, frmn Nugent's "Sketch" and from a paper by Dr. Thomas Nicholson, written for the Antigua Almanac and Register. Dr. Nugent divides the geological formations of the island into four, of which the basal member. No. 1, is described as "trap and trap-breccia," No. 2 is "stratified conglomerate," No. 3 is "chert," and No. 4 is "marl or calcareous rock. " In his maps he reverses the order of the " strati- fied conglomerate" and the "chert," but explains in the Appendix'^ that this was a mistake, although he at one time entertained this view of the structure of the island. Dr. Nugent's paper, which shows keen observation, remained for long the classic on Antiguan geology, until the appearance of M. J. C. Purves's Geological Sketch of the 1 Am. Jour. Sci., ser. 1, Vol. I (1819), p. 140. Wm. Maclure refers to the island of Antigua in his "Observations on the Geology of the West Indian Islands, from Barbadoes to Santa Cruz, " but he did not visit the island. See Jturnal Acad. Nat. Sci. Philadelphia, Vol. I, pt. 1, 1817. 2 Trans. Geol. Soc. ser. 1, Vol. V (1821), pp. 459-475. ^ "Geology of Antigua, " by Prof. S. Hovey, Amer. Jour. Sci., ser. 1, Vol. XXXV (1839), pp. 75-85. * Extracts from a letter to Professor William Buckland, one of the Vice- presidents of the Geological Society of London, from Dr. Nugent. Trans. Geol. Soc, series 1, Vol. V (1821), p. 470. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 587 island of Antigua, which was published in 1885, in the Bulletin du Musee Royal d'Histoire NatureUe de Belgique/-' This paper by M. Purves is much fuller than that by Nugent, and he distinguishes more divisions in the geological formations. The divisions of M. Purves are as follows: H. Horizontal marls. G. Upper limestones and marls. F. Upper tuffs. E. Lacustrine or fresh-water chert. D. Volcanic sands and sandstones. C. Lower limestone or marine chert B. Lower stratified tuffs. A. Porphyrites and volcanic agglomerates. Of these *'A. Porphyrites and volcanic agglomerates" is the No. 1 of Nugent, "trap and trap-breccia" ; "B. Lower stratified tuffs" is the "stratified conglomerate" No. 2 of Nugent; C, D, E, and F, of Purves come in the "chert" of Nugent No. 3, who did not recognize any distinction between the marine and the fresh-water cherts; while divisions G and H of Purves are included in the "marl or calcareous beds," No. 4 of Nugent. Indeed, it is rather doubtful if Nugent recognized the horizontal marls at all. This paper of M. Purves is accompanied by a geological map of Antigua, upon which the divisions which he recognizes are set down, and a geological section from St. Mary's Rectory to Drew's Hill and thence to Hodge Bay is given to show the structure. This map indicates a fault, with upthrow to the northeast and general N. W.-S. E. strike, dis- locating the formations so that D, "the volcanic sands," is brought to the surface and lies next to F, the "upper tuffs." This makes the lacustrine or fresh-water cherts appear at the surface in two bands traversing the island from northwest to southeast. Several minor faults are shown on this map, and I observed a number which have not been mapped. This fault, as indicated by Purves, runs from about ^ mile south of Corbizon Point on the northwest coast to the small bay between Isaac Point and Standfast Point which lies to the southwest of Willoughby Bay at the southeast of the island. It is of interest in connection with the paper by Guppy mentioned below. Each of the eight divisions of the formations of the island enumerated by Purves is described in detail as regards its composi- tion and character, but little information is given in regard to the 5 "Esquisse geologique de I'lle d'Antigoa." Btill. Mus. Roy. Hist. Nat. Bela.^ Vol. Ill, 1884-85, pp. 273-318. 588 PROCEEDINGS OF THE ACADEMY OF [NoV., organic remains, and that of a very general kind, only the genus being noted in many cases. A short list of corals from the lower marine chert and limestone, C, is given, however, which will be referred to later in this paper. Some reference to the movements of elevation and subsidence of Antigua is given in a paper by Dr. J. W. Gregory, "On the Palaeon- tology and Physical Geology of the West Indies, "" and a few additions to the palseontology of Antigua are there noted. The next paper to be published dealing with the geology of Antigua is by Professor J. W. W. Spencer, "On the Geological and Physical Development of Antigua"^ which appeared in 1901. This gives a revision of the formations of the island, as follows, the basal member being placed at the bottom: 8. Recent deposits, raised beaches. 7. Cassada Garden gravels. 6. Friars Hill series, pebbles and marl. 5. Hodge's Hill calcareous sandstones. 4. White limestone or Antigua formation. 3. Tuffs and included marls and chert. 2. Seaforth limestone. 1. Igneous basement. Comparing this with the divisions as recognized by Purves, given above, the first division, 1, corresponds to his A; that is, the "igneous basement" of Spencer is the "porphyrites and volcanic agglomerates" of Purves. Spencer's Seaforth limestone does not seem to have been recognized by Purves, although it doubtless exists near Seaforth; and I was shown specimens from this horizon by several collectors, said to have come from the base of the stratified tuffs. Spencer's No. 3, "Tuffs and included marls and chert," includes divisions B, C, D, E, and F of Purves, these formations occupying the "Central Plain" of Antigua. Purves's division G, upper limestones and marls, is the same as Spencer's No. 4, "White limestone or Antigua forma- tion," and may also include his division 5, Hodge's Hill calcareous sandstone. Spencer's divisions 6 and 7, "Friars Hill series" and "Cassada Garden gravels," were not recognized by Purves; while his division 8 is the same as the "horizontal marl" of Purves. Upon the whole, this division of the formations recognized by Spencer agrees with the observations which I was able to make while on the island better than do those of Purves or Nugent, although in each 6 Quart. Jour. Geol. Soc. London, LI, 1895, p. 295. ^ Quart. Jour. Geol. Soc. London, LVII (1901), pp. 490-505. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 589 case the formation described may be readily recognized. Spencer's divisions seem to be more in accordance with the history of the devel- opment of the island as indicated in the record preserved in the rocks. Spencer's paper is accompanied by a geological map of Antigua upon which he has laid down his divisions 1, 3, and 4; the other divisions which he recognizes being probably too local and too ill- defined in outline to be mapped. No faults are shown and no geological section accompanies the map. The latest paper upon the geology of Antigua which has appeared is by R. J. Lechmere Guppy,^ following an examination of the island made in 1910. As Mr, Guppy states, this examination, on account of his physical disabilities, was necessarily incomplete. His visit to the island was to see if any trace of the "Great Antillean Disloca- tion," postulated in his paper, "Geological Connections of the Carib- bean Region"^ as extending from Trinidad to Sombrero and thence through the northern part of the island of Haiti, was to be found in Antigua. This great fault, Mr. Guppy thinks, passes through An- tigua, through the Central Plain, from Willoughby Bay to St. John's Harbor; the occurrence of which two bays is his principal argument in favor of this fault. Purves, on his map of Antigua, indicates a fault in somewhat the same position as this Great Dislocation of Guppy, but the fault as shown by Purves does not take the same course, running from a little south of Corbizon Point on the northwest coast, about 2 miles to the north of the fault indicated by Guppy (which starts at St. John's Harbor), to a bay between Isaac Point and Steadfast Point, about a mile to the west of the head of Willoughby Bay. Moreover, the fault shown by Purves is not indicated as a dislocation of great magnitude, while that of Guppy is a "Great Dislocation," bringing up the "older beds" of the Antigua Formation of Spencer, which, according to Mr. Guppy, "is of a very Cretaceous aspect." Upon what he bases this statement is not explained, the evidence of the fossils contained in this Antigua formation points to its being of Oligocene age, as will be shown later. But Mr. Guppy, it seems, is not a believer in the occurrence of the Oligocene in the West Indies, as he remarks in this paper (p. 684) : " Even so eminent a professor as J. W. Gregory has fallen into the common error of mixing up the Miocene with the Eocene, and calling the result 'Oligocene. ' " Guppy 's paper does not .add much data for fixing the * R. J. L. Guppy, "On the Geology of Antigua and other West Indian Islands with reference to the Physical History of the Caribbean Region," Quart. Jour. Geol. Soc. London (1911), Vol. LXVII, pp. 681-700. 3 Guppy, Tratis. Canad. Inst., Vol. VIII, 1908-1909, p. .373. 590 PROCEEDINGS OF THE ACADEMY OF [Nov. age of the white limestone or Antigua formation, although he records having visited "a marl pit about 2 miles from St. John's" with Mr. W. R. Forrest (doubtless the one on Marble Hill, which I visited twice, once in company with Mr. Forrest) in which he found casts of Pholadomya and also of Turritella. Upon my visit to this locality in company with Mr. Forrest, we were not so fortunate, finding only the small, badly preserved branching corals, common in the marl everywhere, but Mr. Forrest remarked to me that Turri- tellas were sometimes found here as casts, and also casts of bivalves. The preservation of the fossils in these soft marls is very imperfect, and secondary crystallization obscures the structure. They are rarely determinable specifically. The major part of Mr. Guppy's paper is taken up in discussing the "Great Dislocation," of which, during my stay upon the island, I did not see any evidence; nor has its presence been detected by Mr. R. W. Forrest, who has given much attention to the geology of the island. The general succession of the formations in Antigua has been discussed by Nugent, Purves, and Spencer, and a brief review of their several arrangements of the strata has been given above and their correlations indicated. From my own observations, a slightly differ- ent arrangement has been deduced, as follows: Table of the Geological Formation of Antigua. Recent and Pleistocene... 9 Salt pond and mangrove swamp deposits, in process of formation. 8 Raised beaches, horizontal marls of Purves. 7 Shell beds of the Central Plain, probably including the Cassada Garden gravels of Spencer. 6 Friar's Hill gravels and marls of Spencer. Break. Break. Oligocene 5 Hodge's Hill calcareous sandstone. 4 Antigua formation of Spencer, white marls and white lime- stone. 3 Water-deposited tuffs and shales, with included marls and cherts. 2 Seaforth limestone (perhaps Eocene). Eocene (?) 1 Igneous basement, mainly of volcanic materials, but inter- sected by dykes as late as the white limestone of the Oligo- cene. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 591 The water-deposited beds of the island are apparently all included in the Oligocene and Pleistocene; the Miocene and Pliocene are entirely wanting, indicating that the island was not submerged during this time. But a submergence occurred at the end of the Pliocene which permitted the formation of marine deposits in many parts of the island. The movement of the island at present appears to be upward, and the formation of salt pond and mangrove swamp deposits at many places along the coast line is still in progress. The age of the accumulation of the "igneous basement" is set down in the above table as possibly Eocene, not from any fossils which it contains, but because the bedded deposits of the Oligocene appear to overlie it. The volcanic activity continued, however, into the Oligocene during the time of the deposit of the tuffs, and the white limestone itself is intersected by dykes of the igneous material. These deposits will now be described in more detail. 1. The Igneous Basement. This is what Dr. Nugent has called the "trap formation"; it is M. Purves's "porphyrites and volcanic agglomerates," or the 'foundation rocks of the island" or "igneous basement" of Spencer. I have used Spencer's term. The rocks included in this formation lie to the west of a line drawn from the head of Five Islands Bay, southeasterly towards English Harbor, and they lie in the southwest part of the island. They are exposed along the coast from the mouth of Five Islands Bay to the southwest corner of the island and thence east to the head of Falmouth Harbor. I inspected this region in company with Mr. Forrest from St. John's to St. Mary's, Old Road (nearly due south of St. John's), and thence along the south coast to St. Mary's Rectory at the southwest extremity, and from there up the west coast to St. Mary's in the Valley, and back to St. John's by the Central Plain. Mr. Tempany showed me his collection of these rocks, which corresponded with those seen on the trip with Mr. Forrest. They consist of massive igneous flows and subaerially deposited ashes, mainly in layers, and with many volcanic agglomerates, consisting of ash and volcanic fragments held together by the material of the flows. Large volcanic bombs occur in this agglomerate with fragments down to fine lapilli and o-sh. The flows are mainly pyroxene andesite, often compact; and also basalt, or the same material as the pyroxene andesite with much olivine. Dykes of compact andesite and basalt intersect the tuffs and agglom- erates. The rocks are prevailingly andesitic, and the tuff and 592 PROCEEDINGS OF THE ACADEMY OF [NoV., agglomerate is in excess of the material in the form of flows. Many of the tuffs and other materials have midergone alteration, and, according to the statements of Mr. Tempany, metamorphosed sediments occur. Such is the Seaforth limestone as described by Spencer, but specimens of this rock which I was shown in collections do not show metamorphism to any considerable extent. Water- deposited tuff may occur, at least near the borders of this formation, and in the tuffs of the Central Plain area I saw deposits not greatly different from those observed in these igneous foundation rocks of the island. No definite volcanic cone from which these deposits came is now in existence, all the hills being much eroded and dis- sected. Remnants of such cones may exist near Five Islands Bay, or the bay itself may represent the site of a crater. Another remnant of a crater was reported as being in existence near the southwest corner of the island, but no cone exists there at present. 2. The Seaforth Limestone. I did not visit the type locality of this material, and only had the opportunity of inspecting two lots of specimens from the formation. Spencer describes it as ''occurring at a few points in the valleys of the mountain zone" or among the rocks of the igneous basement; and states that it is a compact dark gray limestone. Mr. Tempany gave a similar description of its appearance and occurrence, but the specimen of it which he showed me in his collection was a somewhat flinty rock with undoubted Orbitoides in it. Mr. Gillie, rector of the parish of St. Mary's, who resides near the southwest corner of the island, showed me some pieces of a limestone from Seaforth of quite a different character. It was a dark gray compact limestone, but crowded with the shells of bivalves, probably oysters, that were specifically undeterminable. There was nothing in either of these specimens to lead me to suppose that they were older than Oligocene, while the occurrence of the Orbitoides, in a form not greatly different from that found in the white limestone, rather pointed to this age for the deposit. Purves did not recognize this Seaforth limestone. 3. Water-deposited Tuffs and Shales, with included Marls AND Cherts. These formations occupy almost the entire area of the Central Plain. They include the divisions recognized by Purves under the names B, Lower stratified tuffs; C, Lower limestone and marine chert; D, Volcanic sands and sandstones; E, Lacustrine and fresh- 1913.] NATURAL SCIENCES OF PHILADELPHIA. 593^^ water chert; F, Upper tuffs. They have been placed together by Spencer as one group of deposits, and while it may be possible locally to recognize the divisions made by Purves, the cherty limestones of marine origin, and possibly also those of fresh-water origin, are in more or less lenticular deposits and not continuous. The division D of Purves, "Volcanic sands and sandstones," is locally developed and underlies in some places the fresh-water cherts or the layer containing the fossil wood, but it does not differ very much in appear- ance from some phases of B, the lower stratified tuffs. This division B of Purves, the lowest member of this group of deposits, is found to the west of the Central Plain, and well developed along the southern shore of St. John's Harbor. The beds have the appearance of a buff-colored sandstone, but on close examination the fragments of which it is composed are seen to be angular, not water worn, and to consist of volcanic rock and feldspar. These lower beds maj^ have a higher dip than those of the Central Plain — 20°-30°, as against 12°-15° — and the dip is more to the north in many cases. But as the higher rocks in this lower series of tuffs are encountered, the dip diminishes and becomes more northeast. At the level of the lower limestone and marine chert as seen just to the south of St. John's (about a mile south of the town) the tuff becomes almost white from admixed kaolin, and has this lower dip of 12° N. E. It is in some places, soft, in others hard and compact, and almost pure white except for black specks of magnetite. This magnetite forms black layers on many of the recent sea-beaches and consists of octahedral crystals and angular fragments of crystals. The limestone deposit, which in places is altered to a flint or chert, contains corals, those from the Nugent collection in the possession of the Geological Society of London have yielded the following species (Duncan) :^° Astrwa cellulosa var. curvata Duncan. Astrcea megalaxona Duncan. Astrcea antillarum Duncan. Solenastroea turonensis Mich. Isastrcea conferta Duncan. Isastrcea turbinata Duncan. Stephanocce7iia tenuis Duncan, also found in the lower tuffs. Coeloria dens-elephantis Duncan. Astroria polygonalis Duncan. Astroria affinis Duncan. Astroria antiguensis Duncan. Astroccenia ornatd Ed. and H. Alveopora dcedala Blainv., also vars. regularis and minor. Styloccenia lobato-rotundata (Mich.). 10 Quart. Jour. Geol. Soc. London, Vol. XIX, 1863, p. 477. 594 PROCEEDINGS OF THE ACADEMY OF [NoV., These cherts and cherty limestones occur also at Jackass Point in St. John's Harbor. The same character of rock, marly limestone with associated flint and chert, and with corals, etc., is found in the town of St. John's, and is, in fact, the material upon which the cathe- dral is built. At the cathedral it is mostly chert, and the flint and chert are found to the southeast of the town along the roads. Mol- lusks have been reported from this chert, but no species have been determined, although doubtless a considerable fauna will be found in the Nugent collection when it comes to be studied. This last hne of this rock, which runs southeast from St. John's Cathedral, is probably another layer of the marl and chert parallel to the one mentioned as running from Jackass Point southeast to near the sugar factory, one mile south of St. John's. It is seen exposed, and fragments of the flint are plentiful along the roads to the southeast of the town, south of the Botanic Station; indeed, it forms some of the small hills in this section. These deposits seem to be more or less discontinuous and are only to be seen where the ground becomes too hilly or the soil too stony for cane culti- vation. The "volcanic sands and sandstones," bed D, of Purves are even more discontinuous. They are characteristically developed, as he describes them, along the northwest sea-coast at Dry Hill and at Corbizon Point, where they are overlaid by the "lacustrine chert" of Purves. Traces of these "volcanic sands" are seen in some places to the east of St. John's, but their horizon is only marked in some places by sandy lumps and concretions in the white tufaceous rock. Sands at the horizon for these "D" beds are seen in patches from Corbizon Point to the southeast, into the interior of the island; but that they are often wanting, as may be seen on the hills east of the Botanic Station, where a continuous section of the white tuffs, some with sandy modules or concretions representing the horizon of "D," the "volcanic sands," is overlain by the "lacustrine chert" with fresh-water shells imbedded in its mass. At the Public Ceme- tery, also, the sands are wanting, only the sandy nodules mark the horizon of these beds. The white tuffs above the "marine chert" are sometimes partly replaced by the lenticular masses of the volcanic sands, or sometimes these sands are entirely wanting. These white tuffs owe their color to kaolin from the alteration of feldspar in the volcanic ash, and are mixtures of ash (usually fragments of feldspar) and kaolin. The admixture of kaolin becomes so plentiful in the upper beds that the rock might be called either a water-deposited 1913.] NATURAL SCIENCES OF PHILADELPHIA. 595 tuff or a shale; in fact, it is of much the composition of pipe-clay. This is particularly true of the layers above the lacustrine chert horizon, where these virtual shales become very white and thin- bedded and are hard to distinguish, when massive, from the overlying marls. These are the upper tuffs of Purves, and are quarried at Scotts Hill. When the ''volcanic sands and sandstones" are typically developed, ^s at Dry Hill or at Corbizon Point, they form the base of the section. They are dark reddish or purplish in color, with numerous concre- tions, resembling boulders, of a somewhat harder character, and are made up of volcanic sand and gravel, all water worn, with small pebbles of the compact hard andesite of the igneous basement, from which they are doubtless derived. They are but slightly compacted; firm, but yielding readily to the pick, and crumbling easily in the fingers when in detached fragments. They are overlaid by a few feet of yellowish tuff conglomerate, consisting of rolled fragments of a lighter color, with much green earth in minute particles, which gradually passes into the impure yellowish marls with the flint layers of the "lacustrine or fresh-water chert." The exposure of these flinty layers at Dry Hill follows the strike of the rock for some distance, and these beds at this point have furnished the following section : Section at Dry Hill. 5. Compact shale with plant impressions 10 ft. 4. Hard impure limestone with two, or sometimes three, layers of flint, carrying fresh-water shells; the flint layers varying from one inch to four inches thick, and the fossils occupying about one inch thickness in each case 2 ft. 3. Hard impure limestone without fossil layers 2 ft. 2. Yellowish tuff conglomerate, pebbles of tuff and andesite 5 ft. 1. Dark reddish or purplish volcanic sandstone 18 ft.-f The base of the volcanic sands is not exposed at this locality nor at Corbizon Point. Several small faults exist near the north end of the Dry Hill exposure, one dislocates the measures about 25 ft. with an upthrow to the north, and one or more must exist between Dry Hill and Corbizon Point, the total upthrow to the north aggregating upwards of 400 feet, as the same succession of beds is to be noted at Corbizon Point as is given in the above section at Dry Hill. No exposures of the rock in place can be seen along the coast between Dry Hill and Corbizon Point, the beach being fiat and sandy; and 596 PROCEEDINGS OF THE ACADEMY OF [NoV.^ inland there is a salt pond, while still further inland the cane cul- tivation covers all exposures. At Corbizon Point, however, the upper flinty layers carry fragments of silicified wood, and this is the horizon of the silicified wood for which Antigua is noted. This horizon may be traced across the island by the silicified wood and to some distance to the southeast by the flint and chert with the fresh-water fossils. Mr. W. R. Forrest informs me that the silicified wood is in place along the north shore of Willoughby Bay; but, if so, it is not this layer, always supposing that the map of Purves is correct. The fresh-water fossils have not been determined specifically, a list of the genera found is given by Purves. Collections of them which I obtained at Dry Hill are now being studied and will be reported upon later. The silicified wood, for which the island is noted, probably all comes from this horizon. It is found throughout the Central Plain, especially in the central part of the island, and lies about on the surface in fragments of varying sizes, although nowhere, at present, are trunks of 14 feet long by one foot or more in diameter encoun- tered, such as are described by Dr. Nugent. These silicified woods are found scattered about upon the surface, but are rarely seen in situ; they are very plentiful at Bellevue and at Cassada Garden. They include both Monocotyledons and Dicotyledons, but have never been studied specifically. Purves mentions having found stems and fruit of Chara 'in the beds carrying these deposits. The shales at Dry Hill which overlie the fresh-water, mollusk-l^earing flinty layers carry fragments of leaves of palms and other vegetable matter; these beds are mixtures of kaolin and volcanic ash, and, while brownish or dun-colored from the admixed vegetable matter, they are evidently a part of the white shales and tuffs of the upper layers of this division. As has been stated, these upper shales and tuffs are well exposed at Scotts Hill, some two miles to the southeast of St. John's, where they are quarried for road metal. They are here hard and compact, breaking into angular fragments on exposure, and wearing down, when used on the roads, to a tenacious clay. This rock consists, as seen under the microscope, of kaolin mixed with volcanic ash, the kaolin largely predominating. It is partly ce- mented by secondary silica from the feldspar of the volcanic ash. It becomes calcareous towards the top and passes upward into the marls of the white limestone or Antigua formation. Indeed, when it is hard and compact, this rock closely resembles the harder parts of the marl, and the application of an acid is often necessary to distinguish it from the true mark 1913.] NATURAL SCIENCES OF PHILADELPHIA. 597 The total thickness of this division is upwards of 2000 feet or more, and of this more than half is below the lacustrine flint layer; the bottom of the formation is hard to define, as it is not easily dis- tinguished from the bedded deposits of the basal igneous complex. But of the distinctly bedded deposits, which are exposed in many places and always with the same general north or northeast dip, the thickness must be at least 2000 feet. The division is composed of the volcanic material of the igneous basement, reworked by water, and water deposited; mixed likely with other volcanic material which, erupted during the deposition of these beds, fell into the water, and was distributed on the sea bottom. As indicated above, these tuff beds, with their included marls and cherts, appear to pass upward into the marls and limestones of the Antigua formation without any stratigraphic break, or the Antigua formation rests conformably upon them. At several places along the contact of the marls with the tuffs and shales shallow wells have been sunk for water, and while the contact of these two forma- tions is seldom exposed, the conformable character of it is indicated by these diggings. When the Antigua formation itself is found well exposed near the contact, the dip of the marls is about the same as that of the tuffs, and is in the same direction; that is, the marls are found to dip gently at 10°-12° to the northeast in the same way as the tuffs. There is certainly no indication of a fault separating the two formations as suggested by Mr. Guppy. The fossils of the included marls and cherts, interbedded with the tuffs and shales, do not indicate any other age than Oligocene, which is the age of the Antigua limestone as indicated by its fossils. But the species that have been observed in the Antigua limestone are only in part the same as have been determined from the tuffs and included marls and cherts. These tuffs were, in part at least, shallow water forma- tions; mud cracks and even ripple marks were observed by me in the tuffs underlying the lacustrine cherts, and the presence of these fresh-water deposits (the lacustrine cherts) indicates land at this time. The tuffs may have accumulated rapidly when they are €oarse in grain, as these volcanic conglomerates which underlie the fresh-water deposits, but the finer material of the thin-bedded tuffs which overlie this horizon were probably slowly deposited and in water of greater depth. This was likely the case with the marls of the Antigua formation also, in great part; although some of the harder limestone beds of this deposit have the appearance of coral- reef material. 598 proceedings of the academy of [nov., 4. The Antigua Formation of Spencer. East of a line running from near Wetherill's Point to the head of Willoughby Bay the surface of the island is composed of the Antigua Formation (as Spencer has named it), a white chalky or marly rock with harder layers which may be properly called limestone. In the cane cultivations with which the island is covered from the Central Plain easterly, this formation may often be recognized by a pronounced blackness of the soil where the marls are encountered. They are often exposed in road-cuttings, or on the hillsides by artificial diggings ("marl pits") for material to be used as road metal; and where soft, the dip is obscure, but where more hard the same northeasterly dip is seen that was so characteristic of the tuffs and shales. As soon as the harder limestone layers are encountered, they make hills with a gentle easterly slope, but a steeper westerly one on the escarpment side of the hill; and this harder part of the marl or the harder lime- stone is often exposed upon this escarpment side of the hill in con- siderable cliffs. Where the harder limestones outcrop along the coast as at Wetherill Bay and Hodge's Bay along the north coast, and at High Point and other places to windward along the east coast, around to Willoughby Bay on the southeast coast, these harder layers form sea cliffs. These harder layers, too, form in many cases the capping of the hills, which are ridges with an even summit in such cases. Where the dip can be seen, on such harder layers, it is uniformly to the northeast, and the thickness of this Antigua for- mation, as indicated by this dip, must be upwards of 1500 feet at least. The harder layers have generallj^ the same organic remains, and this seems to indicate (unless the formation is faulted) that there are several parallel hard layers. The fossils contained in the softer marls are usually corals, in a much altered and crystallized condition; the crystallization being due to the deposit of carbonates (as calcite and dolomite) or to silica in the form of quartz, crystals of which substance are frequently seen in the marls. The harder layers are often compact limestone, sometimes nearly barren of fossils, at other times crowded with organic remains. The most characteristic fossil in the harder layers is an Orbitoides, which has been determined by T. Rupert Jones (and this determination later confirmed by Dr. Lang, of the British Museum) as Orbitoides mantelli Mort. This Orbitoides, in many cases, forms the bulk of the limestone, and water-worn pebbles from the seashore frequently show only sections of this Orbitoides with no other fossil. But in other layers are found shells of oysters, pectens, and other pelecypods, while in 1913.] NATURAL SCIENCES OF PHILADELPHIA. 599 other cases the rock is composed of masses and fragments of corals. The corals of the Nugent collection were determined by Duncan," who gives the following list of species: Duncan's List of Corals in the Nugent Collection from the Antigua Formation. AstroEa crassolamellata Duncan, with the varieties magnetica., pulchella, nohilis, minor, nugenti, magnifica. Astrcea antiguensis Duncan. Astrcea endothecata Duncan. Astrcea tenuis Duncan. Astrcea harhadensis Duncan. Astrcea radiata Lam., var. intermedia Duncan. Astrcea costata Duncan. Rhodaraa irregularis Duncan. Alveopora dcedala Blainv., var. regularis Duncan. Alveopora microscopica Duncan. Alveopora fenestrata Dana. Of these the species Alveopora dadala Blainv. is common to the tuffs and to the Antigua Formation. The corals collected by Pro- fessor Spencer were referred to Dr. T. Wayland Vaughan for deter- mination, who reported the following list: Trochosmilia n. sp. Stylophora sp. Stephanocoenia sp. ■\Astrocainia ornata Ed. and H. Brachyphyllia sp. *Orbicella (Astrcea) crassolamellata (Duncan). ^Orbicella cellulosa (Duncan). *Orbicella endothecata (Duncan). Orbicella sp. Symphyllia n. sp. ■\Astroria polygonalis Duncan. Oroseris n. sp. ■\*Alveopora regidaris Duncan. Porites n. sp. Of these species, the ones marked with an asterisk (*) are in Duncan's list from the white Antigua limestone, and the ones marked with a dagger (f) are found in Duncan's list of the corals in the Nugent collection from the tuffs. Dr. Vaughan recognizes eight species not in Duncan's list. One species is common to the tuffs and the white limestone (f*). As Spencer remarks, this Quart. Jour. Geol. Soc. London, Vol. XIX, 1863, p. 410. ^00 PROCEEDINGS OF THE ACADEMY OF [NoV., finding of the same species in both the tuffs and the white limestone would point to their forming really but one geological unit, "although characterized by great changes in the physical conditions during the accumulation of the system." What has been said of the gradual passage of the upper shales and tuffs into the marls and their apparent ■conformability point to these formations forming one geological unit. As to the age of the corals examined by Dr. Vaughan, he notes that the coral fauna of the Antigua formation "is identical with that of the lower beds of the upper Oligocene formation of southwestern Georgia." The mollusks collected by Spencer were referred to Dr. Dall, who afterwards determined one of the forms as Peden (Chlamys) anguil- lensis Guppy, and described one as Peden (Plagiodenium) gahhi Dall, referred to below in the list of species in the collection made by me in Antigua. Professor Gregory,^- lists two species of echinoids sent to him by Mr. Forrest, and these are also among the species collected by me in Antigua. They are, as given by Gregory, Echinanthus concavus (Cott.) and Echinanthus antillarum (Cott.). With the exceptions of the two Pectens noted above, as determined by Dr. Dall, no mollusks appear to have been recorded from this Antigua white limestone, so that the few which I was able to secure will help to fix the age of the formation. The limestones in some places carry many species of Pectens, and as these are frequently determinable even in frag- ments, more attention was given to collecting them than to corals, foramenifera, etc. Although difficult to extract from the rock, I was fortunate enough to obtain five known species or varieties of Oligocene Pectens as well as two new species of this genus, and a new species of oyster, a Turritella, and six or seven species of echinoids. These, with the corals that have been determined as Oligocene, will serve to confirm the age of the formation. The list of species col- lected from* this Antigua formation is given below. Species collected from the Antigua Formation. Diplothecanthus concavus (Cott.). Clypeasier concavus Cott., 1875.— Cotteau, Kongl. Sv. Vet. Akad. Hand- lingar, B. 13, No. 6, p. 16, pi. II, figs. 4-8. ^ , c, t , Echinanthus concavus (Cott.).— Gregory, Quart. Jour. Geol. boc. London, Vol. LI (1895), p. 295. This is the commonest echinoid in the Antigua white limestone, " Gregory, Quart. Jour. Geol. Soc. London, Vol. LI, 1895, p. 295. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 601 and was found in great numbers at Hodge's Bay and along the shores at Willoughby Bay, and also commonly at High Point. Diplothecanthus antillarum (Cott.). Clypeaster antillarum Cott., 1875.— Cotteau, loc. cit., p. 15, pi. II, figs. 1-3. Echinanthus antillarum (Cott.).— Gregory, loc. cit., p. 295. Not Echinanthus antillarum Cott., 1875.— Cotteau, loc. cit., p. 2b, pi. IV, figs. 9-12. Less common than D. concavus (Cott.), this large species was found at Willoughby Bay only. Sismondia antillarum Cott. Sismondia antillarum Cott., 1875.— Cotteau, loc. cit., p. 17, pi. Ill, figs. 1-4. A small species found only at Willoughby Bay. Schizaster clevei Cott. Schizaster clevei Cott., 1875.— Cotteau, loc. cit., p. 29, pi. V, figs. 7, 8. A rather small specimen which probably belongs to this species was collected at Willoughby Bay. It may prove to be new. Echinolampas anguillae Cott. Echinolampas anguillce Cott., 1875.— Cotteau, loc. cit., p. 24, pi. IV, figs. .5-8. A single example of this species was collected at Willoughby Bay. Metalia sp. indet. Fragments of two additional species, one probably belonging to the genus Metalia and the other to Ewpatagus, were collected, some at Hodge's Point and some at Willoughby Bay. While several frag- ments of each species were collected, none are in sufficiently perfect condition to describe. One specimen from Hodge's Bay is a frag- ment of a very large species, but somewhat less than one-third of the test is represented. Pecten (.ffiquipecten) oxygonum Sowb. Pecten oxygonum Sowb.— Quart. Jour. Geol. Soc. London, VI, 1849, p. 52. This is the species which Gabb has determined as belonging to this unfigured species of Sowerby; the specimens collected agree perfectly with those determined by Gabb as belonging to this species in his specimens from Santo Domingo (now in the A. N. S. P. collection). It was collected at Hodge's Bay. Pecten oxygonum optimum B. and P. Pecten oxygonum optimum B. and P.— Brown and Pilsbry, Proc. A. N. S. P., 1912, p. 511, pi. XXIII (numbered XXIV), fig. 2. Pecten paranensis d 'Orb.— Gabb., Journ. A. N. S. P., VIII, p. 347, pi. 45, fig. 24. Not of d'Orbigny, Voy. Amer. Merid. Palseont, p. 132. This variety of P. oxygonum^ described in 'Tauna of the Gatun Formation, Isthmus of Panama, II," a year ago, is based upon a 40 602 PROCEEDINGS OF THE ACADEMY OF [NoV., specimen referred by Gabb to P. paranensis d'Orb. It was found at Willoughby Bay, several specimens being taken. Gabb's specimen came from the Reventazon River, Costa Rica, and not, as noted by Dall, from Santo Domingo. Pecten (Chlamys) anguillensis Guppy. Plate XVIII, figs. 4, 6, 7, 8. Pecten anguillensis Guppy. — Proc. Sci. Asso. Trinidad, 1867, p. 175, figured in Geol. Mag. Decade, II, Vol. I, 1874, pi. XVIII, fig. 24. This species was the commonest Pecten in the Antigua limestone, and is recorded as having been brought from Antigua by Spencer (see Dall, "Tertiary Fauna of Florida," p. 715). It was collected by me at Wetherill's, Hodge's Bay, and Willoughby Bay. It was particularly plentiful at Wetherill's Bay, but few specimens could be detached entire from the rock surfaces. The figure given by Guppy does not show the secondary radial striation, and is thus misleading, but the species may readily be recognized by its 10-11 ribs, much fewer than in the other fossil Pectens of Antigua. Its living representatives, probably descendants in one case, are P. antillarum Recluz of Guadaloupe and other islands of the West Indies, and P. luculentus Reeve of North Australia. Pecten (.ffiquipecten) thetidis Sowb. Peclen thetidis Sowb.— Quart. Jour. Geol. Soc, VI, 1849, p. 52. Pecten thetidis Sowb. — Gabb, Trans. Amer. Phil. Soc, new series, XV, p. 256. This species was collected at Hodge's Bay, and agrees well with specimens so named by Gabb in his Santo Domingo collection in The Academy of Natural Sciences of Philadelphia. It was fairly common; did not become silicified so commonly as the last species, and commonly acquired a black color on exposure to the weather. The species is small, evenly ribbed, and seems to belong to the first of the two varieties mentioned by Gabb. Pecten (Plagioctenium) gabbi Dall. Pecten (Plagioctenium) gabbi Dall, Tertiary Fauna of Florida," p. 717, pi. 29, fig. 3. Not Pecten paranensis d'Orb., as cited by Gabb. — Jour. Acad. Nat. Sci. Phila., 2d series, VIII, p. 347. This species is represented by one entire valve and several more or less well-preserved fragments of valves from Willoughby Bay, and, while it does not agree exactly with Dall's figure, it does agree with his description of P. gabbi Dall. The figure is from a specimen collected by Spencer in Antigua. The specimen referred to Pecten paranensis d'Orb. by Gabb was from Reventazon River, Costa Rica, not from Santo Domingo, as stated by Dall. As already noted, this Costa Rica specimen is the P. oxygonum optimum B. and P., and does " Trans. Wagner Free Inst. Sci., Ill, p. 715. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 603 not at all resemble this Antigua species. But while Dall's figure of Spencer's Antigua specimen is not exactly like this species, his de- scription agrees so well with the Willoughby Bay specimens that I do not doubt this species is P. gabbi Dall. Pecten (Amusium) antiguensis n. sp. Plate XVIII, figs. 1, 2, 3, 5. This large Amusium is very common in the Antigua limestone on the sea beach at Wetherill's Bay and especially at Hodge's Bay. Its description will be found under "Descriptions of New Species." While plentiful at Hodge's Bay, the specimens were so firmly attached to the rock or imbedded in it as to make it almost an impossibility to extract entire, unbroken specimens. This species and the P. anguillensis Guppy were especially likely to be found silicified. This silicification has sometimes obliterated the secondary sculpture, but in other cases has preserved it in most remarkably perfect con- dition, as in some of these specimens. If it were not for this silici- fication, it would be very difficult to obtain any specimens from this hard, white limestone; but this alteration, in part or wholly, to silica makes the specimens weather out in almost complete and perfect condition. Pecten nugenti n. sp. Plate XIX, figs. 2, 5, 6. Hodge's Bay. Ostrea antiguensis n. sp. Plate XIX, fig. 7; plate XX, figs. 1, 5, 6. In some of the exposures of this limestone along the seashore, notably at Hodge's Bay and at Wetherill's Bay, the hard limestone contained many isolated oyster shells. Of these, the specimens collected at Hodge's Bay I at first referred to Ostrea gatunensis B. and P., but upon further examination I find that they are the same as those collected at High Point and Wetherill's Bay. These are specimens of a new species to which I have given the name of Ostrea antiguensis. At Willoughby Bay a much larger species of oyster was observed, perhaps 0. haitensis Sowb., but specimens could not be obtained, as they were imbedded in the hard, compact limestone. Spondylus sp. indet. A single young specimen of a Spondylus was collected at High Point. It seems to resemble Spondylus bostrichites Guppy, but is too young and too fragmentary to be determined with certainty. This shell was silicified also. Turritella forresti n. sp. Plate XX, figs. 2-4, 7. 8. Found at Willoughby Bay by Mr. W. R. Forrest. See "Descrip- tions of New Species." 604 PROCEEDINGS OF THE ACADEMY OF [NoV,, If incoherent or soft fossiliferous beds could be found in Antigua, such as occur in Santo Domingo or on the Isthmus of Panama and in Costa Rica, the fauna obtainable from this Antigua limestone would undoubtedly be a large one. I examined the island carefully for such deposits^ but none of this soft character were met with. Fur- ther research may disclose such deposits, but unfortunately the tuffs in which they might be found have undergone much compression and they are too much altered, where they have, thus far, been found to carry fossils, to give much hope of finding them fossiliferous and at the same time soft. The limestone is sometimes in the form of a soft marl, but even this has usually undergone alteration and the fossils have been subjected to crystallization which has obliterated many characters. In some cases the organic remains have been dissolved and replaced by silica, or the shells have been dissolved away leaving a cast of the cavity, but no mould to show the exterior of the organism. The most favorable place for collecting specimens to represent the fauna that was seen was the region of Willoughby Bay, and from what I saw there it is evident that the fauna is a very large one. That the igneous activity continued during the Oligocene, after the deposit of these limestones, is indicated by the occurrence at Crosbies of a dyke of dark andesite which has been injected into the white marl and has altered it in places, the dyke itself being also altered. This dyke is 15 feet wide or more, and is compact and not porous. This locality at Crosbies is near the northern shore and about a mile to the southwest of Hodge's Bay. Purves mentions this locality, but places it on the seashore. Angular lapilli of volcanic ash were found in the limestone at Hodge's Bay, indicating volcanic action at this time. 5. Hodge's Hill Calcareous Sandstone (of Spencei?). Professor Spencer has given this name to a calcite sandstone composed of water-worn grains of coral, shell, and other calcareous matter, found at Hodge's Hill in the northeastern corner of the island. These beds are seen along the shore at Hodge's Bay over- lying the hard Antigua limestone, and resting upon them with a very fiat dip. Spencer regards this contact as unconformable, but there seems to be no erosion unconformity, and the difference in dip is very slight. The material has a very different appearance (as regards compactness, for example) from the harder Antigua limestone which it overlies, but I have no doubt that it is really a part of the 1913.] NATURAL SCIENCES OF PHILADELPHIA. 605 same formation. It contained the Orbitoides antl many fragments of echinoids, and furnished a recognizable Scala, referred to below. Spencer^^ remarks of these sandstones that "one suspects the Hodge's Hill sandstones belong to an epoch not long subsequent to that of the former rocks" (Antigua limestones); a conclusion in which I certainly concur. In fact, it seems more than probable that thej^ are only the continuation upward of this same Antigua formation. 6. Friar's Hill Gravels and Marls (of Spencer). An undoubted unconformity, representing a break in the deposi- tion of the formations lasting through the Miocene and Pliocene, separates these gravels and marls from the Oligocene of the Antigua formation. These deposits of Friar's Hill rest upon the eroded sur- faces of the Antigua limestone, and consist, at the. base, of water- worn pebbles, derived from the underlying formations; and this layer of pebbles is overlaid by a compact, buff-colored marl stated by Spencer to have a thickness of about 12 feet, and doubtless likewise derived in large part from the underlying marl itself. The material seems to be always not greatly different from the underlying marls of the Oligocene, as though derived in each case from rock in the immediate vicinity. Spencer, also, notes that the material does not seem to have been transported to any distance. I am inclined to think it should be connected with the Cassada Garden gravels as the shore deposit that was formed during this depression of the island when the shell beds of the Central Plain were being laid down, and the Cassada Garden gravels are the current-transported materials of the same general age. I have not seen these Cassada Garden gravels overlying the Friar's Hill deposits, and at Cassada Garden the gravels rest upon the tuffs under the Antigua formation. No fossils, except those that are derived from the marls, are found in the Friar's Hill deposits, but, up to at least 150 feet above sea level, the shells of the next division cover the ground in the region of the Central Plain. The Friar's Hill gravels, according to Spencer, occur up to 200 feet above sea level, while I have traced the shell deposits of the Central Plain (as above stated) up to at least 150 feet above the sea level. 7. Shell Beds of the Central Plain. Throughout the Central Plain of Antigua, from the neighborhood of St. John's to Willoughby Bay, sea shells are encountered in the soil 14 Quart. Jour. Geol. Soc. London, Vol. LVII, 1901, p. 499. 606 PROCEEDINGS OF THE ACADEMY OF [NoV., and lying about on the surface, being brought up in every excavation and digging up to, in the region of St. John's, 125 feet above sea level. They are found in some places upon hills to a level of 150 feet above the sea. They are not confined to the Central Plain entirely, for they were seen near St. Mary's Rectory, in the volcanic part of the island, at least 100 feet above sea level. In the vicinity of Willoughby Bay they were seen in the soil of the Central Plain at elevations of upwards of 100 feet also, but they were not noted in the soil upon the high hills near the Montpelier estate in this vicinity. The species were those now living in the sea surrounding the island. They occur in the surface soil, but it cannot be said that there is any very recog- nizable deposit which contains them. As they are in a superficial deposit, this is not to be wondered at; the surface soil everywhere has been disturbed for some depth on account of the cane cultivation, which covers all the available cane-producing land in the island. In some places these marine shells are found associated with recent land shells, as has been described of the raised beaches or horizontal marls of Purves, although these land shells are the species now living in the places where these marine shells occur, and have come into the soil much more recently than the marine shells. During the time of the deposition of these shell deposits the island must have stood at a level of at least 150 feet lower than at present and, in fact, have been divided into two or more islands by the sea, which occupied the Central Plain. Across this plain the sea must have been driven by the trade winds, this wind drift making a current (during the time of greatest depression) running through the Central Plain from Willoughby Bay to St. John's Harbor. The excavating power of this current may have had its part in the formation of these two bays, and of the depressions along the coast from St. John's Harbor north to Corbizon Point, such as Dickenson's Bay. The rise of tide in Antigua is slight, but it must have produced a very appreciable current in this central depression; and during the ebb and flow of the tide, until a channel was established across the inland during the time of sinking, currents due to this cause must have run in and out of the bays. Even during the time of greatest submergence such currents must have been formed and in their flow have had a tendenc}^ to scour the bottom of the bays at either end of the central depression. The currents set up by the tide or (during the time of maximum submergence) by the wind drift would be strong enough to produce the water-worn character observed in the Cassada Garden gravels. And the appearance observed in these materials of having 1913.] NATURAL SCIENCES OF PHILADELPHIA. 607 been transported a considerable distance would be explained by the existence of such currents. The Cassada Garden gravels, as I saw them at the type locality, occupy depressions in the general surface, where they have accumulated, and they also occur as low hills or mounds above the general surface. They may represent local channel or even shore deposits when the sea occupied this central plain. More to the east, in the bays that would be formed by such a depression, the Friar's Hill gravels and marls might have been locally formed. The general occurrence of marine shells up to 125-150 feet above sea level, wherever either in the Central Plain or in the volcanic region to the southwestern part of the island the surface soil was exposed by cultivation, is a character of the geology of the island that at once strikes the observer. And from this higher elevation down to the sea level such occurences of sea shells are com- mon all over the island. In the Central Plain the form of surface characterizing a raised beach has not been preserved, but nearer the sea level there are definite raised beaches, some of which were ob- served by Purves and named the "horizontal marls." They no doubt had an origin similar to that of the salt pond and mangrove swamp deposits that are still forming. But the marine shells of the older submergence were in large part or entirely the same species as those of these later deposits. And since the greatest depression of the island during which these shell beds of this submergence were laid down, the general movement of the island has been upward. Indeed, old maps like that accompanying Nugent's paper, compared with present conditions, would indicate that this upward movement is still going on. Evidence of the submergence is to be seen not only in the marine shells found in the soil; the underground water from the region of the Central Plain carries a large percentage of sodium chloride. In wells in this Central Plain and in the water from springs in this region the amount of sodium chloride is so high as to become characterictic of the water of the region. Thus at Gam- ble's Spring it amounts to 1137 parts in 100,000, as determined from an analysis made in 1906, and at Gunthorpe's well, according to an analysis made in 1905, the sodium chloride content rose to 1458 parts per 100,000.^^ At Cassada Garden the sodium chloride content in the water is much less— 390 parts per 100,000. Away from this Central Plain depression the amount of sodium chloride is found to decrease, and this is a characteristic of the limestone district; for instance, at 15 "The Water Supply of Antigua," by H. A. Tempany, West Indian Bulletin, Vol. XII, No. 4. 608 PROCEEDINGS OF THE ACADEMY OF [NoV., Parham, New Work, the salt in the water was only 14.7 parts per 100,000 in 1911. On the other hand, in the raised beach deposits in the east of the island the content of sodium chloride in the water is often as much as, or more than, that of the Cassada Garden well, and this is doubtless true of all districts recently covered by salt ponds, although they now may show no evidence of recent sub- mergence. The marine shells found scattered through these shell beds are apparently all recent species; they include many gastropods and a much larger number of pelecypods. A few specimens were gathered and some of the larger species simply noted. Among the gastropods the large Strombus gigas L. was occasionally seen, also Melongena melongena L., and Livona pica L. were often encountered. A few specimens of Purpura were seen and P. deltoidea Lam. was collected, as was also Bullaria occidentalis (A. Ad.) and Modulus modulus (L.). The pelecypods collected include Area chemnitzii Phil., Cardium muricatum L., Chione cancellata L., and two varieties of Anomalo- cardia flexuosa L., but many other species were seen, especially Codakia orbicularis (L.) and Codakia orbiculata Mont. A limpet, Fissuridea barbadensis Gmel., was observed. Land shells, particularly Bulimulus guadalupensis Brug., are plentiful in the soil mixed with the marine shells, they have probably been recently introduced into this deposit from forms living in the Central Plain when it was first cleared and settled. 8. Raised Beaches, Horizontal Marls of Purves. Along a part of the north shore of the island and also along the northeast shore down to St. George's Church there are, at certain places, definite horizontal deposits, consisting of marl with marine and land shells often mixed together, imbedded in the deposit. These have been described by Purves as the horizontal marls, and are well developed in the vicinity of St. George's Church. They are not seen at any great elevation above the present sea level, not more than 10-12 feet, and are probably old salt pond deposits. The one at St. George's Church contains plentiful remains of land shells mixed with marine species. Here I saw Pleurodonte formosa (Fer.) with the deeper pigment bands still showing their color; although the finer color pattern characterictic of the recent shell is lost. Dry)nceus elongatus Bolt, was also plentiful, but the specimens of P. Jormosa (Fer.) outnumbered the Drymceus about three to one. This Antigua species of Pleurodonte was only known alive, to the local collectors 1913] NATURAL SCIENCES OF PHILADELPHIA. 609 from the volcanic part of the island, in St. Mary's, and is not now living, so far as known, in the north of the island. I found it living at Montpelier in the limestone district of the southeast extremity of the island in St. Philip's Parish. I collected at St. George's also the extinct Helicina named by Purves, Helicina crosbyi, which appears to be a good species, not hitherto described or figured, but his Succineas do not differ from the living Succinea harhadensis Guild. These two Succineas found in this marl Purves has named S. boonii and S. boonii var. elongata,^^ and he states that they are not now living in Antigua, but they seem to me to be simply variations of the living S. barbadensis Guild, which is found living everywhere in the limestone district. It is to be noted that these so-called extinct forms are larger than the normal living forms; and also a large "semi-fossil" Succinea has been collected in Santa Cruz which belongs to the same species as these from the horizontal marls. The Helicina crosbyi of Purves is not known in the living state in Antigua, it seems to be really extinct. It is not the species found in the neighboring island of Barbuda, and more closely resembles one of the Jamaica species of Helicina than any known species, but, as stated, it is probably a good species. It is described with other undescribed species in this paper. The list of species given by Purves of the land shells found in these marls includes Cistula antiguensis Shutt., now living at Wetherill's and near Montpelier, that is, at the northwest and at the southeast corners of the island, but not seen living elsewhere; and also Subulina octona Brug., found everywhere. The only really extinct form is the Helicina crosbyi. None of the marine species observed are extinct, and all are still living about the shores of the island. Such a deposit as this one at St. George's (and similar ones are known along the north- east and north shore to Boone's Point) was probably formed in much the same way as the present salt ponds. It was at one time a shallow bay, the mouth of which was cut off by the growth of man- groves, and it thus became a lagoon. Into this lagoon, the washings from the hills brought down the land shells that cover the ground, even at present. This part of the island must have been grown up in "bush" similar to the vegetation that now covers Barbuda, in which bush Pleurodonte formosa, Helicina crosbyi, Cistida antiguensis, Drymceus elongatus, Bulimulus guadalupensis, and other land shells lived; and probably also the water of the lagoon, as it 1® The authority placed after these species (Nob.) is a contraction for nobis and means simply Purves. 610 PROCEEDINGS OF THE ACADEMY OF [NoV., dried up, became in places fresh, so that fresh-water forms could live in it and become mixed with the already deposited marine forms and the land forms. The wells near this St. George's locality show much sodium chloride in the water, as though it might have passed through a salt-pond stage. Such salt-pond deposits may have formed during the last stages of the rising of the island from the submergence at the time of the deposit of the shell layers in the Central Plain, already noted. Salt ponds now occur along the west coast of the island, but I did not personally observe them along the east coast; these "raised beaches" are probably such deposits in the limestone along the east coast. They are not likely to be of any great antiquity, and are not greatly different in their origin from what is now forming in the salt ponds of the western side of the island. 9. Salt Pond and Mangrove Swamp Deposits. As just noted above, these deposits are characteristic of certain places on the western shore line, from Corbizon Point to the vicinity of St. Mary's, Old Road. They are shallow bays that are gradually filling up. They are seen in all stages of development, for instance in the region of the head of Five Islands Bay and between this and St. John's Harbor. Salt pond deposits exist about a mile beyond the Union Sugar Mill. Evidently here a connection existed at no very distant time between Five Islands Bay and St. John's Harbor, and, indeed, upon Nugent's map this district is represented as a swamp. This same map shows a bay open to the sea east of the stretch of beach between Dry Hill and Corbizon Point, where a salt pond now exists; and open water on the north side of St. John's Harbor where a salt pond is now forming. Some ten such salt ponds are shown upon this Nugent map from Ships Stern (at the entrance of St. John's Harbor) to St. Mary's, Old Road. These shallow bays are first cut off from the sea by the growth of mangroves and such plants as can exist in presence of the salt water; a fringe of such mangroves near the mouth of the bay becomes a place for deposition of sand and other inorganic matter washed up by the waves, and a sand tract forms, cutting off the mouth of the bay. This bar grad- ually grows until the salt water only reaches in to the pond in time of high wind or tide. The water in the pond becomes brackish from the surface drainage getting into it, and the salt-water forms living in it, when freely open to the sea, are killed off, giving place to brackish-water and finally to fresh-water forms, if the pond continues to exist so long. When such a pond is near higher ground, the 1913.] NATURAL SCIENCES OF PHILADELPHIA. 611 washing from the hills carries land shells into the pond, and these are mingled with the salt-water and brackish-water forms. But in many cases, the swamp water becomes so foul during the change from salt to fresh that no brackish-water forms can live in it. Appar- ently, too, the change is rapid in some cases and no brackish-water forms migrate in. The shallow ponds become swamps and finally, draining to the sea, dry up completely and form level stretches which are occupied by the "bush," and eventually by cultivations of some kind. One such level stretch, formerly occupied, no doubt, by one of these salt pond swamps, is now under cultivation as a cocoanut plantation, near St. Mary's in the Valley. Along the east coast such salt ponds were not visited, and perhaps they may no longer exist, but they are indicated on Nugent's map as occurring at several places along the northeast coast of the island. I have no doubt that the "horizontal marl" deposits in the vicinity of St. George's Church have had some such history; and if the general movement of the island is an upward one at present, as seems to be the case, other shallow bays such as are found along this east coast may develop into such salt ponds in the future. But the upward movement would seem to be more characteristic of the west coast than of the windward region, and the salt ponds of the west side of the island are now forming and show all stages of development. That such deposits must have occurred during the last emergence of the island and that traces of them are still to be seen in the interior (in the Central Plain, for instance) there can be little doubt. When they are very shallow and dry up when in the salt stage, leaving deposits of salt impregnating the surface soils, is probably indicated in the large amount of salt found in the shallow surface wells in some places at the present time. This salt impregnation of the soil in certain parts of the Central Plain has been noted under the "shell beds of the Central Plain." A local development of the same ■character, due to the accumulation of salt in hollows, subsequent to the last emergence of the island from the sea may be the cause of the "gall spots" noted in the cane cultivations in the Central Plain and eastward. These are places where the growth of the cane is poor, and they are generally marked by a yellowness of the cane itself. Mr. Tempany, Superintendent of Agriculture for the Leeward Islands, who has made many soil and water analyses, agrees with me that the gall spots are apparently places where soluble salts in the soil have accumulated to a point which interferes with the growth of the plants. 612 proceedings of the academy of [nov.^ Descriptions of New Species. Helicina crosbyi n. sp. Plate XIX, figs. 1, 3, 8. Helicina crosbyi Purves, Bull. Mus. Roy. Hist. Nat. Belg., Vol. Ill, 1884, p. 310. Name only. No description or figure. Shell depressed, conic, of about four and one-half whorls, marked by growth-lines, periphery somewhat keeled up to the last whorl, where it becomes rounded. Outer lip much thickened and heavy, the inner lip expanding and covering the umbilicus with a heavy callus. The thickened outer lip rises abruptly from the last whorl in a ridge, which continues to beyond the columella and forms the border of the heavy callus of the inner Yvp, but this elevation of the lip dies away and the callus of the inner lip thins down until it reaches the level of the base of the last whorl. Slope of the spire even, the sutures not depressed, spire somewhat convex. Operculum unknown. Alt. 7.7 mm., cham. 11 mm. Types A. N. S. P. Collection No. 109,109. This species was named by Purves H. crosbyi, but apparently never described nor figured. It is easily identified a's the species referred to by M. Purves, as it occurs fossil in the "horizontal marls'* at several points noted by him, but is unknown in the living state and appears to be extinct. The "semi-fossil" shells are entirely without pigment, so that what colors the original shell possessed must remain unknown. The form of the heavy callus and the great thickening of the outer lip which characterize this species recall the lip and callus of the Jamaican Helicina neritella angulata C. B. Ad., which, however, differs from this species in having the angulation of the periphery continued on the last whorl out to the lip. The specimens were collected at St. George's Church and at Hodge's Bay, Antigua. Pleistocene. Scala (Sthenorhytis) antiguensis n. sp. Plate XX, fig. 9. Shell turbinate, of about five whorls, rapidly enlarging; the suture impressed, whorls rounded, crossed by about sixteen varices which are acute edged and rise abruptly from the whorl. The intervarical spaces are crossed by five raised revolving cords with a secondary sculpture of fine, somewhat irregularly spaced revolving lines and crossed by radial lines parallel to the varices. This secondary sculpture which covers the varices also, is best observed with a lens. From the excavated form of the base of the shell, it is probable that the mouth was circular, but this portion of the shell is imperfect. Alt. 30 mm., diam. 19 mm. From the Hodge's Hill limestone (Antigua formation), Hodge's Bay, Antigua. Oligocene. Type A. N. S. P. Collection, invertebrate fossils. No. 1,645. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 613 Turritella forresti n. sp. Plate XX, figs. 2, 3, 4, 7, 8. Shell elongate, slowly tapering, of many whorls, with a raised sculpture of three major spiral ridges, of which the one towards the apex is double and beaded, the next one is at first single, but later becomes double and beaded, while the third is, in the younger stage, not beaded. Between these major revolving spiral ridges are finer revolving spirals, about five between the first and second major spirals, and the same number between the second and third major spirals, with a like number from the third spiral to the suture. These secondary spirals may become knotty and beaded when crossed by the diagonal growth lines, and the doubling of the major spirals comes from one of these minor spirals becoming enlarged on that side of the major spiral towards the apex. The suture becomes depressed by the shell being excavated above the suture or on the basal side of the whorl. A fragment of 14 mm. tapers from 4 mm. to 2 mm. in six Avhorls. A larger fragment tapers from 6 mm. to 4 mm. in a length of 13 mm. From Willoughby Bay, collected by Mr. W. R. Forrest, in whose honor the species is named. Antigua limestone, Oligocene. Only small fragments were obtained, but these show the scuplture well and the species will undoubtedly be easily recognizable from these specimens. Types A. N. S. P. Collection, invertebrate fossils. No. 1,644. Pecten (Amusium) antiguensis n. sp. Plate XVIII, figs, l, 2, 3, 5. Inequivalve, shell orbicular, rather thin, convex; the surface cov- ■ered with a fine concentric sculpture, following the growth lines; with about 13 radial ribs running from the beaks, where they are very pronounced, and, in one valve, apparently disappearing towards the margin, but in the other valve continued as undulations of the shell to the margin. The interior of the shell has radial ribs extending to the margin, where the adjacent pairs of ribs contract and are then seen to be paired, but otherwise seeming to be equally spread as in P. (Amusium) hjonii Gabb, from which this species differs in having a strong concentric sculpture (wanting in P. lyonii), and also in the external radial ribbing being continued for a greater distance from the beak than in Gabb's species. The species is likewise related to P. sol B, and P., but this latter has shorter radial external ribs and the internal ribs are paired. The ears are separated from the rest of the valve by a depression, as is the case in P. sol. Length and iieight about equal — 70-75 mm. Hodge's Bay and Wetherill's Bay in the Antigua limestone, with 614 PROCEEDINGS OF THE ACADEMY OF [NoV.^ Orbitoides, etc., Oligocene. Cotypes A. N. S. P. Collection, inverte- brate fossils, No. 1,648. Pecten nugenti n. sp. Plate XIX, figs. 2, 5, 6. Shell inequivalve, oval in outline, with 17 distinct rounded radial ribs (and probably 2 additional less distinct ones) separated by narrower interspaces, the whole exterior surface covered by concen- tric growth lines which are raised and produce a nearly microscopic sculpture extending equally over ribs and interspaces. Internally smooth, except near the margin, where raised ribs are seen, occupying the intervals between the raised external ribs. On the flatter valve, externally the raised ribs are equal in width with the intervals between them, and the concentric sculpture, while extending over ribs and interspaces, is stronger in the intervals between the ribs. Ears moderate, apparently not ribbed. The specimens vary considerably in size; the one figured, a small specimen, measures: length 41 mm. by height 36 mm. Others were much larger, attaining a length of 55 mm. or more. Named in honor of Dr. Christopher Nugent, the first to publish an account of the geology of Antigua. Collected at Hodge's Bay. Cotypes, A. N. S. P. Collection, invertebrate fossils, No. 1,656. Ostrea antiguensis n. sp. Plate XIX, fig. 7; plate XX, figs, l, o, 6. Shell ovate or nearly orbicular, thick and dense, externally radially plicate or sometimes nearly smooth, the plications on the lower, deep valve begin at the beak and are usually seven in number, of which a group of five ridges is separated from the other two by a broad depression; the ridges sharp and spinose or obtuse and even, the furrows or depressions smooth and rounded. Hinge moderate, the shell rapidly widening beyond the end of the hinge line, the plications usually dying away as the margin of the adult shell is reached, and this margin in the lower valve being turned up abruptly for one-half inch or more, making a cup-shaped valve. The upper or flat valve has the margin strongly reflexed to fit the upturned margin of the deep valve. The muscle impression is distinct, more strongly impressed in the case of the deep valve; situated on the left and nearer to the beak than to the opposite margin. The lower valve is more or less excavated internally, the upper valve is flat. When strongly plicate and even spinose, this species closely resembles 0. gatunensis B. and P., except that this latter species has not the heavy shell of 0. antiguensis nor has it the turned-up margin. 0. haitensis Sowb. has the rugose exterior of this species in its strongly plicate 1913.] NATURAL SCIENCES OF PHILADELPHIA. 615 form, but while the shell is heavy, it lacks the upturned edge of 0. antiguensis. Length 85 mm., alt. 80 mm., depth of lower valve 30 mm. Cotypes, A. N. S. P. Collection, invertebrate fossils, Nos. 1,653 and 1,655. In size and plication 0. antiguensis varies largely, but of the specimens collected the longest shells do not run far from 90 mm. in altitude. As regards plication, some are nearly smooth and some are strongly rugose, even in some cases spinose, but all may be distinguished by the broad furrow which runs across the exterior of the lower valve about opposite to the muscle impression and which divides the rugse into a group of five and one of two. The species differs also from all other closely related American species by the upturned margin of this lower valve and the correspondingly reflexed margin of the upper or flat valve. Explanation of Plates XVIII, XIX, XX. Plate XVIII. — Fig. 1 . — Peden (Amusium) antiguensis n. sp. View of the exterior of a silicified specimen, showing some of the original shell surface. Natural size. Fig. 2.— Peden (Amusium.) antiguensis n. sp. Interior view of shell. Nat- ural size. Fig. 3. — Peden {Amusium) antiguensis n. sp. Exterior, showing hinge, of a non-silicified specimen, partly imbedded in the rock. Natural size. Fig. 4. — Peden {Chlamys) anguillensis Gupp3^ Exterior of a siUcified specimen, in which the original surface was destroyed by the siUcification. Natural size. Fig. .5. — Peden (Amusium) antiguensis n. sp. Detail of a portion of speci- men 1. X 3. Fig. 6 — Peden (Chlamys) anguillensis Guppy. Exterior of an unsilicified specimen, showing the distinctive secondary ribbing. Natural size. Fig. 7. — Peden (Chlamys) anguillensis Guppy. Interior of valve. Natural size. Fig. 8— Peden (Chlamys) anguillensis Guppy. Exterior of a silicified specimen, showing traces of the secondary ribbing. Natural size. Plate XIX. — Fig. 1. — Helicina crosbyi n. sp. Mouth view of a specimen. X 2. Fig. 2. — Peden nugenti n. sp. Interior view of the shell, showing the hinge. Figure slightly above natural size. Fig. 3. — Helicina crosbyi n. sp. Under side of shell, showing the heavy umbilical callus and thickened lip. X 2. Fig. 4. — Orbitoides manteUi Mort. The figure shows a fragment of the rock with two specimens of this large species. About natural size. Fig. 5. — Peden nugenti n. sp. Exterior aspect of the deeper valve. Very slightly enlarged. Fig. 6. — Peden nugenti n. sp. Enlarged view of a fragment of the exterior of the shell, showing the concentric secondary sculpture. X 3. Fig. 7. — Ostrea antiguensis n. sp. Interior of shell, showing muscle impres- sion and hinge. Natural size. Fig. 8. — Helicina crosbyi n. sp. Lateral view of shell, showing the raised and thickened outer part of the lip. X 2. Plate XX. — Fig. 1. — Ostrea antiguensis n. sp. Exterior of the deep valve of a nearly smooth specimen. The figure is shghtly above the natural size. Figs. 2-4. — Turritella forresli n. sp. X 3. 616 PROCEEDINGS OF THE ACADEMY OF [NoV., Fig 5. — Ostrea antiguensis n. sp. Exterior of the deep valve of a rugose specimen. Slightly enlarged above natural size. Fig. t). — Ostrea antiguensis n. sp. Interior of the flat valve, partly imbedded in the limestone. This specimen shows the strongly reHexed margin of this valve. The concentric markings are due to partial sihcification. Figs. ?, 8. — Turritella forresti n. sp. X 3. Fig. 9. — Scala {Sthenorhytis) antiguensis n. sp. Natural size. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 617 December 2. Mr. Benjamin Smith Lyman in the Chair. Forty-eight persons present. The death of Alfred Russel Wallace, a correspondent, November 7, was announced. The following was unanimously adopted: Whereas, The Academy has been informed by the Council of the receipt and adoption of a final report on the Centenary Celebration and the discharge of the Committee having charge thereof, Resolved, That the Academy, approving of the action of the Council, desires to express its obligation to the Committee and to record on the minutes its thanks for the entirely adequate and satisfactory discharge of its duties, resulting in a record of achieve- ment which cannot fail to be an incentive to those who will celebrate the second centenary of the Academy in 2012. Dr. Edgar T. Wherry made an illustrated report on the Twelfth International Geological Congress. (No abstract.) Another report on the same subject was read from Prof. R. A. F. Penrose, Jr. December 16. The President, Samuel G. Dixon, M.D., LL.D., in the Chair. The Publication Committee reported the reception of papers under the following titles: "The anatomy of two Brazilian land shells, Anostoma depressum and Tomigerus clausus," by Harold Heath (November 24). "Data on the orthopteran faunistics of Eastern Pennsylvania and Southern New Jersey," by Henry Fox (December 3, 1913). The following were ordered to be printed: 41 618 PROCEEDINGS OF THE ACADEMY OF [DeC, THE LAND AND FRESH- WATER MOLLUSKS OF THE STANFORD EXPEDITION TO BRAZIL. BY FRED BAKER, M.D. It was my good fortune to accompany the Stanford Expedition to Brazil, Dr. J. C. Branner, Director, in the smnmer of 1911, and I have been requested by Dr. Branner to report on the land and fresh- water mollusks. For apparently good reasons, the report on the marine mollusks will occupy a later paper. Mollusks were taken at nearly all points visited by the members of the Expedition, and a large number were sent to me after my return to the United States by the Goeldi Museum of the cit}' of Para, through the kindness of the Acting Director, Dr. Emilia Snethlage, and from the Museu Rocha in the city of Ceara, through the kindness of Mr. Francisco Dias da Rocha, who owns this museum and who deserves great credit for his scientific spirit and untiring work in bringing together this very valuable collection. I beg to acknowledge this great courtesy, as well as the assistance rendered to me personally and to the other members of the Expedition during our stay in Para and Ceara by these well-known Brazilian naturalists. After about four months spent in northeastern Brazil, six members of the Expedition returned to the United States, leaving Mr. W. M. Mann and the writer. We made the trip up the Amazon and Rio Negro to Manaos. There we met Mr. R. H. May, of the contracting firm of May, Jekyll & Randolph, who were then completing the Madeira-Mamore R. R. around the falls of the Madeira and Mamore Rivers, to give access to the rich rubber country on the navigable waters of the tributaries of the Madeira River system and to furnish a feasible route into Bolivia from the north. On his invitation, we went aboard one of their steamers clown to Itacoatiara, below the mouth of the Madeira River, thence up the Madeira to Porto Velho, the starting point of the railroad. At this point we were tendered all the facilities of the road and we were the guests of the contractors for about two months, travelling over the whole line to the Guajara-Assu Falls, the upper falls of the Mamore River, just above which point navigable water is reached and the terminus of the road is to be located. On this portion of the trip we crossed 1913.] NATURAL SCIENCES OF PHILADELPHIA. 619 the river into Bolivia on three occasions. I wish here to extend my most sincere thanks to Messrs. May, Jekyll & Randolph for their courtesy, which made the work done on this part of the trip possible, and to the many employes of the Madeira-Mamore Co. who rendered us assistance and personal courtesies in very large measure during this most delightful journey. By a curious difference in the time of the dry season of the different districts visited, all the work of the Expedition was done during the dry season in each district, except that the rainy season was just beginning as we left the Madeira River and during our last short stay in Para. Everywhere we found shells sestivating, and it is probable that this accounts for the somewhat limited list of species actually taken by the members of the Expedition and for the large number of dead shells which made up much of the collection. The ground covered by the Expedition and by the locations from which the mollusks here reviewed wer^ taken can be divided easily and naturally into two distinct districts, the second of which, on account of the great extent of the country included and because a distance of nearly five hundred miles intervenes between the two nearest locations, can be again divided conveniently into two dis- tricts. The first, northeastern Brazil, includes about all of the States of Rio Grande do Norte and Ceara; it is scantily timbered as a rule, dry, with an average rainfall of from ten to twenty inches, and a climate not unlike that of Southern California, Arizona, and New Mexico. The coast region is generallj^ low, with a few low ranges of mountains, the interior higher. In this district are included Natal, Pirangy, Papary, Estremoz, Ceara-Mirim, Taipii, Baixa Verde, Limoeira, and the Mossoro region, Ceara, Maranguape ]Moun- tain, Mongiiba, Buturite, Quixada, and Camocim. The other main district, with Maranhao on the outskirts, includes all other locations mentioned in this paper, beginning with Para and ascending the Amazon and its tributaries, the Tocantins, Jary, Jamauchim, Maccurii, Tapajoz, Madeira, Mamore, and various other small streams. This district is an immense, low, alluvial plain, almost universally heavily timbered, in most of which there is a long rainy season, the annual rainfall averaging up towards a hundred inches in many years, filling many streams more than bank full and producing great sloughs and lakes. Naturally, the climates of the two districts are radically different, although a considerable number of species overlap. As noted above, it is convenient to divide this district into two at any point between the mouth of the Tapajoz 620 PROCEEDINGS OF THE ACADEMY OF [Dec, River and Itacoatiara, leaving in the first subdistrict Maranhao, Para, and all points on the lower Amazon and its tributaries up to, and including, the Tapajoz and including in the second subdistrict Itacoatiara on the Amazon and all of the Madeira River and its tributaries. The shells here reported represent 43 genera, 93 species, and 20 subspecies, of which 33 species and 12 subspecies seem to be new. The types of all of the species and subspecies are deposited in the collection of the Academy of Natural Sciences of Philadelphia, and cotypes of many of them will be deposited in the collection of the Leland Stanford Jr. University at Palo Alto, California, and in the Museu Goeldi at Para, Brazil. In the following list, the species and subspecies are considered with reference to the three districts herein marked out, column one representing the first district, including Rio Grande do Norte and Ceara; column two representing the second district, extending from Maranhao to the Rio Tapajoz and its tributaries, and column three representing the third district, including Itacoatiara and the whole of the Madeira River System. Index of Species and Subspecies with General Locations. Species and Subspecies. Ampullaria bridgesii Rve " crassa Swains " figulina Spix " ffigas Spix " insularum Orb " lineata Spix '... " nobilis Rve " peristomata Orb " testudinea Rve Anodontites bartschi n. sp " dalli n. sp " ensiformis Spix " trapesialis anserinus Spix Anostoma depressum Lam " octodentatmn F. de Wald Bifidaria servilis Gld Bulimulus erectus Rve , " pubescens Moric " rochai n. sp " " suturalis n. subsp.... " " taipuensis n. subsp.. " tenuissimus Orb , Coecilioides gundlachi Pfr Castalia ambigua Lam " quadrilatera Orb 12 3 XXX X X X X X X X X X X ...:. X X X X X X X X X X X X X X X X XXX X X X X Page. 660 659 659 659 660 660 668 667 667 667 643 644 646 635 635 636 637 636 635 646 1913. NATURAL SCIENCES OF PHILADELPHIA. 621 Species and Subspecies. Corona regalis Hupe " regina Fer Diplodon kelseyi n. sp " obsolescens n. sp Doryssa bullata Lea " cachoeiroe n. sp " " sulcata n. suhsp " globosa n. sp " heathi n. sp " iheringi n. sp " inconspicua Brot " rex Pils. n. sp " " regina Pils. n. subsp " starksi n. sp " transversa jaryensis Pils. n. subsp " " var. neax Macapa Moric " " tapajosensis Pils. n. subsp.. " tucunareensis n. sp Drymceus branneri n. sp " expansus Pfr " linnstoma suprapundatus n. Entodlud jcki/llr n. sp EuglaiiiliiKi slrinla Miiller .' EupiTd I nil let. ,s]) Gundldchid hdl:-rri Pils. n. sp Guppijd nidiji II. sp Happui sntihlagei n. sp Helicina guajarana n. sp " lirifera Ancey " schereri Ti. sp Hemisinus brasiliensis Moric " flammeus n. sp " " elongatus n. subsp. Hyria corrugata exasperata Sby " jamauchimensis n. sp Idiopyrgus pilsbryi n. sp Leptinaria imperforata n. sp " lamellata P. & M " " concentrica Rve " perforata n. sp Littoridina manni n. sp Marisa cornu-arietis Linn Odontostomus inflatus Wagner x " " costulatus Ancey x " " fasciatus P. & M ! x " " mar angimpensis n. subsp | x " scabreUus cylindricus n. subsp. beckianum Pfr gracile Hutton " odogyrmn Pfr " opella Pils. & Van Orthalicus sultana Dillw Oxystyla pulchella Spix " " prototypus Pils Physa rivalis M. & R Planorbis anatinus Orb Page. 639 639 665 666 651 655 656 651 653 654 650 650 651 652 649 650 649 656 637 637 638 630 627 663 663 632 629 626 625 625 657 657 656 658 646 645 645 645 658 661 640 641 64 i 641 642 644 644 644 645 639 638 638 661 622 PROCEEDINGS OF THE ACADEMY OF [Dec, Species and Subspecies. Planorbis cimex Moric " cultratus Orb " depressissirnus Moric " guadeloupensis Sby " peregrinus Orb " stramineus Dkr Plekocheilus piyiiadinus Orb Prisodon obliquus Schum " syrrnatophorus Meusch Psadara derbyi cearana n. subsp SegiiK nfiiKi pn/xiri/oisis n. sp Sohiriipsis najiU m I_)ohrn Sin/itd.ri'^ (ihinui(n.'. Two specimens taken in the Rio Jamauchim, at a different date and possibly at a different location from the preceding, dift"er from 658 PROCEEDINGS OF THE ACADEMY OF [DeC, the type by being more slender, more irregularly flammulate, less distinctly shouldered below the sutures, and by having the spiral sulci more persistent and deeper and the aperture broader and shorter. Alt. 21, diam. 9, length of aperture 9, width 4.25 mm.; whorls 3|. AMNICOLID^. • Genus LITTORIDINA Souleyet. Littoridina manni n. sp. PI. XXVI, fig. 15. Shell distinctly rimate, but not perforate, rather thin, ovate conic, of a dark olivaceous-yellow color, lightly marked by growth lines, crossed by more distinct, irregularly sized and spaced spiral costulse, showing under a glass on the last two whorls; spire straightly conic, apex minute, slightly obtuse and dimpled. Whorls 4|, all moderately convex and regularly increasing; sutures well defined, but not im- pressed. Aperture veiy slightly oblique, ovate, white; peristome simple, continuous, very evenly curved, and showing a very delicate, whitish thickening within; outer lip joining the parietal wall at an angle of about ninety degrees; inner margin continuous, in contact with the preceding whorl; a delicate, deeply sinused callus joining the extremities and extending well within the aperture. Alt. 3.17, diam. 2, alt. of mouth 1.15 mm. Two specimens differing slightly in size were taken on the north bank of the chief affluent of Papary Lake near its mouth. The species resembles L. charruana Orb., but differs by the presence of spiral striations and by the distribution of callus within the mouth. I have named the species for Mr. W. M. Mann, the entomologist of the Expedition, who alone, of the members of the Expedition, accompanied me on that portion of the trip extending up the Amazon and to the ^Madeira and Mamore Rivers, and who aided me greatly in the collection of mollusks. Genus IDIOPYRGUS Pilsbry. Idiopyrgus pilsbryi n. sp. PI. XXVI, figs. 13, 14. Shell perforate, turreted, solid, opaque, olive-green, becoming lighter on the last whorl; spire tapering regularly to the apex, which is eroded in both specimens; surface smooth except for faint growth lines, rather dull. Whorls 4|, all strongly convex, separated by deep sutures. Aperture oval, oblique, the basal margin only slightly advanced, the outer lip retracting upward; peristome continuous, outer lip slightly expanded, somewhat thickened within, with a rounded sinus jiist below the upper insertion and a small sinus at 1913.] NATURAL SCIENCES OF PHILADELPHIA. 659 the juncture of the outer and basal margins; columella and parietal margins continuous, forming a raised ledge across the parietal wall. Alt., estimated in full, 4.1, diam. 2.15, length of aperture 1.15 mm. Two specimens were taken with the last near the head of Papary Lake. This species differs from /. souleyetanus Pils. by its darker color, fewer whorls and slightly smaller size. It is the second species of the genus to be taken, the other, I. souleyetanus Pils., having been taken at Rio Doce, state "of Espiritu Santo, in southern Brazil. In his description Dr. Pilsbry remarks, ''It is probably a straggler from the fauna of eastern Brazil, of which little is known," a shrewd deduction which the discovery of 7. pUshryi confirms. The species is named for Dr. H. A. Pilsbry, who characterized the genus. AMPULLARIID^. Genus AMPULLARIA Lamarck. Ampullaria gigas Spix. Testae, fluv. bras., p. 1, tab. 1, 2. Ten specimens were taken at Itacoatiara and one large and four half-grown specimens were sent from the Goeldi Museum, the first taken on the Island of Mexiana, two at Baiao on the right bank of the Rio Tocantins, and two at Arumanduba, Parana de Almeirim. Ampullaria figulina Spix. L.C., p. 4, tab. iv, fig. 4. Dead shells of this species were taken quite commonly on the shores of Lake Estremoz and three specimens taken in the Igarape de Paituna, near Monte Alegre, Fazenda Ponto, and eight taken ''in the wet plains near Arumanduba," Parana de Almeirim, were sent from the Goeldi Museum. Ampullaria insularum Orbigny. Voyage dans rAmer. ]Merid., p. 371, pi. 51, figs. 1, 2. This shell was rather common in the streams about Papar>^, asso- ciated with the commoner A. testudinea Rve., and the Goeldi Museum sent seven specimens taken in the Rio Nhamunda at Fazenda Paraiso, near Faro, six from Boim e Pinhel, on the right bank of the Rio Tapajoz, three from Monte Alegre, Igarape Pucii, and five from Arumanduba, Parana de Almeirim. Von Ihering (Anal. Mus. Nac. Bs. As., VI, Aug. 3, 1898) considers this species synonymous with A. gigas Spix. All shells examined, while showing the same general form and deep sutures, were easily separated by the much lighter weight of the shells and the more open umbilicus. 660 PROCEEDINGS OF THE ACADEMY OF [DeC.,. Ampullaria lineata Spix. L.c, p. 3, tab. V, fig. 2. Four specimens were taken in the artificial lake on the water front at Ceara, a single specimen near the Guajara-Assu Falls on the Mamore River, and two specimens were sent by Mr. G. A. Waring "from the lower portion of the Rio Mossoro in the state of Rio Grande do Norte. Ampullaria nobilis Reeve. Conch. Icon., 1858, pi. ii, fig. 8. Five specimens were taken in a small stream in the suburbs of Para and ten taken on the Island of Mexiana, one from the Rio Jamauchim and one from Baiao on the right bank of the Rio Tocan- tins were sent from the Goeldi Museum. Ampullaria peristomata Orbigny. Magazin de Zoologie, 1835, p. 32; Voyage, pi. 52, figs. 4-6. Three or four specimens of this species, which is characteristic of the head waters of the Madeira River System, were taken on a sand bank below the Guajara-Assu Falls and about thirty specimens at Camp 43, M. & M. R. R.; three specimens were sent from the Goeldi Museum, one each from the Rios Tapajoz, Jamauchim, and Maccurii. Two specimens brought through without water proved, to be alive and in good condition when put into water at the Academy of Natural Sciences in Philadelphia about two months later. Ampullaria testudinea Reeve. Conch. Icon., X, pi. xxiv, fig. 114 (1856). This was the commonest Ampullaria at Papary and at Ceara- Mirim; three young shells were taken at Maranhao, and a single specimen from the Rio Maccuru was sent from the Goeldi Museum. Ampullaria bridgesii Reeve. Conch. Icon., X, pi. .\i, fig. 50, (1856). About forty specimens were taken at Para, a single very large and. heavy dead specimen at Camp 43, M. & M. R. R., two specimens were sent by Mr. G. A. Waring from "the lower portion of the Rio. Mossoro, Rio Grande do Norte," and four were sent from the Goeldi Museum, one from the Igarape de Paituna near Monte Alegre, Fazenda Ponto, two from the Rio Maccuru, and one from the Igarape Pucii, Monte Alegre. Ampullaria crassa Swainson. Zoological Illustrations, No. 28, tab. 136. Six specimens taken "in the water-filled stone holes in the drv bed 1913.] NATURAL SCIENCES OF PHILADELPHIA, 661 of a small affluent of the Rio Jary near the great falls" near St. Antonio da Cachoeira were sent from the Goeldi Museum. They seem to fall into this species, although they are proportionally slightly narrower than is typical for the species. Genus MAEISA Gray. Marisa cornu-arietis Linne. Syst. Nat., X, p. 771, No. 590. A single specimen of this species, taken at Alcobaga, on the Rio Tocantins, was sent from the Goeldi Museum. PHYSID^. Genus PHYSA Draparnaud. Physa rivalis (Maton and Rackett). Bulla rivalis M. and R., Trans. Linn. Soc. London, VIH, 1807, p. 126, pL 4, fig. 2. Physa sowerbyana Orbigny, in Sagi'a, Hist. fis. polit. e nat. de la Isla de Cuba, Moluscos, p. 101, pi. 13, figs. 11-13, 1845. About fifty specimens were taken in an artificial lake in the park in front of the Cathedral of Para, half a dozen in Papar}^ Lake, and a single dead specimen taken at Ceara-Mirim seems to be the same. Physa sp. undet. Forty or fifty young specimens taken at Maranhao seem somewhat different from the preceding, but may be the same. They are too young to diagnose with certainty. PLANORBID^. Genus PLANORBIS ISIiiller. Planorbis anatinus Orbigny. P. anatinus (Planorbe des Canardes) Orb., Voyage, V, pt. 3, p. 361, pi. 45, figs. 17-20. About twenty-five specimens were taken with Physa rivalis in the artificial lake in Para. Planorbis cultratus Orbigny. In Sagra, I.e., p. 105, No. 115, pi. xiv, figs. 5, 8. Half a dozen specimens were taken near the mouth of the principal affluent of Lake Papar^^ . This is the southern known limit for the species. Planorbis cimex Moricand. Thirteen specimens were taken with the preceding. Planorbis guadeloupensis Sowerby. Genera of Shells, Planorbis, fig. 2, (1824?). This shell was taken commonly with the preceding two near Lake 662 PROCEEDINGS OF THE ACADEMY OF [DeC, Papary and was not rare on the shores of Lake Estremoz, all specimens having been taken dead. So far as is known to the writer, this species has not been taken before in South America, and this is the southern known limit for the species. Flanorbis stramineus Dunker. Conchylien Cabinet, p. 4, pi. v, fig. 7a. Specimens were taken with the preceding at Papary Lake, at Ceara-Mirim, and at Ceara. There are about half a dozen very similar forms of Planorbis described from South America, not figured or imperfectly figured, quite possibly reducible to one or two species. Planorbis stramineus Dunker seems to be the first of these to be described. Planorbis depressissimus Moricand. Mem. de la Soc. de Phys. et d'Hist. Nat. de Geneve, VIII, 1S39, p. 143, pL 3, figs. 10, 11. One specimen of this species "from the Coast Region of Ceara" was sent by Mr. Rocha. Planorbis peregrinus Orbigny. Magazin de Zoologie, 1835, p. 26; Voyage, p. 348, pi. 44, figs. 13-16. One specimen ''from the Coast Region of Ceara" was sent by Mr. Rocha. Segmentina paparyensis n. sp. PI. XXVI, figs. 9, 10, 11. Shell dextral, broadly, rather deeply umbilicate, rather solid, planorboid, everywhere sculptured with minute, retractive, sharp costulse, irregularly sized and spaced, the interspaces being broader, and showing on the base, under a strong glass, minute spiral striations formed by the crinkling of the radiating costulae; light horn colored. Whorls 4, regularly increasing, the last subangulate below the periphery behind the outer lip for about \ turn, scarcely angulate below, very sharply descending at the mouth; apex depressed, only the last two whorls reaching the upper level of the shell. Aperture very oblique, subhorizontal, rounded; lip simple, not thickened nor sharpened, slightly reflected at the lower angle, extremities, approaching, and joined by a slight callus in some specimens; aper- tural lamellae five, two parietal and three (palatal) on the outer wall; upper parietal lamella about central, the lower about midway between this and the columellar junction and appearing about half the size on external inspection, both showing a nearly triangular section, the lower sides being nearly horizontal, the upper ascending; lower palatal lamella beginning near the suture and extending nearly 1913.] NATURAL SCIENCES OF PHILADELPHIA. 663 transversely across the base, and slightly up the outer side, straight and rather evenly arched; remaining palatal lamellae deep within the shell, nearly horizontal, short, the lower one slightly larger. Greatest diam. 6, least diam. 5.25, alt. 2 mm. Two specimens of this species, which seems to be new, were taken near the mouth of the main affluent of Papar^^ Lake with the species noted above. It differs from S. janeirensis Clessin by the unusually deep descent of the last whorl at the aperture. Genus GUNDLACHIA Pfeiffer. Gundlaohia bakeri Pilsbry, n. sp. Several specimens of this species were taken with Physa rivalis and Planorbis anatinus in the artificial lake in Para. They were not noticed at the time of collection, but were discovered in a bottle of alcoholics containing the Physa rivalis and Planorbis anatinus noted above. They are described by Dr. Pilsbry in a supplementary paper. ^ SPH^IRIID^. Genus EUPEKA Bourguignat. Eupera. PI. XXVI, fig. 12. Shell rather small, delicate, very inequipartite, compressed, trans- versely oblong, subrhomboidal, narrowing positively, and well rounded anteriorly, the lower margin moderately curved, the pos- terior broad and subtruncate, angulate above at the extremity of the hinge line, subangulate below, sharply compressed posteriorly below the hinge line, producing a sulcus extending from the umbo to the posterior end of the valve at an angle of about thirty degrees from the horizontal; everywhere sculptured with nearly even and evenly spaced concentric costulse, about twelve to the millimeter on the middle of the valve and considerably finer near the beaks; color a slightly glistening yellow horn color, maculated irregularly and rather closely with small purplish to black dots distributed in rather radiating patterns and massing posteriorly to an irregular line along the posterior sulcus. Beaks small, closely approaching, and pointing forward, calyculate ; cartilage moderately exposed ; hinge line narrow, straight posteriorly, very slightly curved anteriorly, armed with a single, almo.st obsolete cardinal in each valve, two moderately strong, simple laterals in the right valve and a simple anterior and a strongly bifid posterior lateral in the left valve. Length 6, diam. 3, alt. 4 mm. 664 PROCEEDINGS OF THE ACADEMY OF [DeC, About twenty specimens of this species were taken from the roots of the water hyacinth on the left bank of the main affluent of Lake Papar5% In view of the difficulty of the group, several closely similar forms being described, some of them imperfectly, it has been thought best to leave this species nameless. The description and figure should enable some future reviser to determine the Lake Papary form. UNIONID^. Genus CASTALIA Lamarck. Castalia ambigua Lamarck. An. sans Vert., VI, 1819, p. 67. Tetraplodon ambiguus Lam., Simpson, Proc. Nat. Mus., Vol. XXII, p. 863. One perfect, dead specimen and with several valves, were taken just below the Guajara-Assii Falls, and about twenty dead specimens were taken on a sand bank below Camp 43, M. & M. R. R.; three valves taken on the Ilha de Goyana, in the Rio Tapajoz, and one from the Ilha Itaiuna, near Cameta, Rio Tocantins, were sent from the Goeldi ]\Iuseum. Castalia quadrilatera Orbigny. Guerin, Mag. de ZooL, No. 62, 1835, p. 42. Tetra'plodon quadr Hater um (Orbigny), Simpson, I.e., p. 864. A single mature specimen taken in the Rio Jamauchim was sent from the Goeldi Museum. Genus HYRIA Lamarck. Hyria corrugata Lamarck, var. exasperata (Sowerby). Hyria exasperata Sowerby, Conch, Icon., XVII, 1869, pi. 2, fig. 3. Simpson {I.e., p. 869) unites the variety with the type. About a dozen specimens were taken at Camp 43, M. & M. R. R., all of which were almost exactly alike, and all of which correspond so exactly with Sowerby's figure that it seems to the writer that the variety must be valid. Hyria jamauchimensis n. sp. PL XXVII, figs. 8, 9. Shell rather light, compressed, subrhomboidal, inequipartite; beaks low, eroded, but still showing signs of strong radial sculpture which extends over the disk about half way to the margin, the central bars anastomosing and dividing irregularly, a few of them extending brokenly nearly to the edge of the shell; anterior and posterior bars nearly horizontal and more defined; growth lines close, but fairly distinct, decussating the radial sculpture throughout; epidermis rather delicate, light yellow-olive; a small anterior wing with a slightly upturned angle and more distinctly winged posteriorly, the 1913.] NATURAL SCIENCES OF PHILADELPHIA. 665 posterior wing being distinctly twisted to the left side; posterior ridge not prominent, indistinctly duplicated, producing an indistinct biangulation; posterior groove scarcely perceptible; superior margin slightly arcuate, anterior narrowed, sharply curved above and gradually and regularly extending into and through the basal margin in an evenly decreasing curve to the lower, posterior angle; posterior margin obliquely truncate; hinge line sharply curved; right valve with three pseudocardinals, two small, simple, widely diverging, including between them a large, triangular middle pseudocardinal which is split into six irregular denticles, and a long, narrow, low- arched lateral lying well within the margin of the posterior wing; left valve with three pseudocardinals, the anterior simple and promi- nent, the posterior two flattened and irregularly divided into denti- cles, and two long laterals which coalesce anteriorly over about one- third of their length; anterior muscle scar rather evenly rounded, well impressed, posterior elongate and indistinct; pallial line well marked; nacre pearly-white, iridescent posteriorly; ligament mod- erate, thickened posteriorly. Animal unknown. Length 45.75, width 31, diam. 11.75 mm. A young specimen of this species which seems to be new, taken in the Rio Jamauchim, was sent from the Goeldi Museum. The sculpture suggests H. rugossissima Sby., but is very much finer than in that species. Genus PRISODON Schumacher. Frisodon obliquus Schumacher. Ess. Nouv. Syst., 1817, p. 139, pi. xl, fig. 2. Simpson, I.e., p. 871. One specimen taken at Boim, on the Rio Tapajoz, was sent from the Goeldi Museum. Prisodon syrmatophorus (Meuschen). Mya syrmatophora Meuschen, in Gronovius, Zooph., 1781, pi. xviii, figs. 1, 2. Prisondon (,yrmatophorus (Meuschen), Simpson, I.e., p. 870. Seventeen specimens taken in the Rio Jamauchim were sent from the Goeldi Museum. Genua DIPLODON Spix. Diplodon kelseyi n. sp. PI. XXVII, figs. 5, 6, 7. Shell transversely subrhomboidal, rather heavy, of moderate size, very inequipartite; epidermis dark brown to black, rayless and almost lustreless; dorsal margin markedly curved, the basal nearly' straight, narrowly, evenly rounded in front, obliquely truncate 44 666 PROCEEDINGS OF THE ACADEMY OF [DeC, behind, producing a subangulation above and below, scarcely alate; beaks rather low, sculptured with strong ribs, nearly vertical in front, more radiating posteriorly and changing abruptly to nearly horizontal in the posterior sulcus; everywhere marked by strong concentric growth lines which decussate the beak sculpture and become almost lamellate in the posterior sulcus, and very faintly marked by obsolete radiating lines discoverable over most of the shell; posterior ridge low, posterior gToove shallow and flat ; hinge line much curved, right valve with a large and a small compressed pseudocardinal, which are nearly parallel, the upper (anterior) thin, straight, and regular, the other much heavier, but varying in different specimens, both variously corrugated and lined on their adjacent surfaces and nearly smooth on their distal surfaces, and, on the same valve, a long, slender lateral which is generally roughened on the inner surface and minutely, irregularly serrate on the edge ; left valve with two compressed pseu- docardinals, one in front of the other, the anterior one roughened and much the larger, and two long, slender, and nearly parallel laterals ; beak cavities moderately deep ; cicatrices deeply impressed and well defined, the anterior irregularly incised on the posterior edge; nacre not brilliant, bluish -white, slightly iridescent behind. Length 59.5, width 37.5, diam. 28 mm. Thirteen specimens of this species, which seems to be new, taken in the Rio Jamauchim, were sent from the Goeldi Museum. The species is named for Professor F. W. Kelsey, of San Diego, Cal., who has kindly undertaken the photographing of the shells illus- trated in this paper. Diplodon obsolescens n. sp. PI. XXII, figs. 16, 17. Shell rather thin, elongate subrhomboidal, rather full, very inequi- partite; beaks low, eroded, but apparently presenting the peculiar radial sculpture characteristic of the genus; everywhere marked by concentric growth lines and with about two-fifths of the disk marked by extensions of the radial sculpture of the beaks; epidermis rather heavy, black, rayless; anterior margin rather evenly rounded; basal margin nearly straight; posterior margin truncate with evenly rounded upper and lower angles; superior margin slightly curved; hinge line distinctly angulate below the umbones; teeth very poorly developed, the outer (anterior) pseudocardinal of the right valve being restricted to a narrow, scarcely perceptible ridge, the other being broader but only slightly more elevated, the long lateral a little more prominent than either pseudocardinal; pseudocardinals of the left valve equally obsolete, while the two laterals are fairly 1913.] NATURAL SCIENCES OF PHILADELPHIA. 667 developed; location of teeth and general shape characteristic of the genus; beak cavities very shallow, nacre dull bluish-white. Length 57, width 25.5, diam. 16.5 mm. One complete specimen and four broken valves of this species, which seems to be new, taken in the Rio Jamauchim, were sent from the Goeldi Museum. All of the specimens are more or less damaged, but it seemed best to describe the species from the material at hand on account of the remarkable obsolescence of the hinge teeth. Genus ANODONTITES Bruguiere. Anodontites ensiformis (Spis). Anodon ensiformis Spix. Test. fluv. bras., 1827, p. 31, pi. xxiv, fig. 1. Glabaris ensiformis (Spix) Simpson, I.e., p. 932. A single valve was taken at Camp 43, M. & M. R. R. Anodontites trapezialis Lamarck, var. anserinus (Spix). Anodon anserina Spix, I.e., p. 29, pi. xvii, figs. 1, 2. A single mature specimen taken in the Rio Jamauchim was sent from the Goeldi Museum. Anodontites dalli n. sp. PI. XXVII. figs. 1, 2. Shell oblong elliptical, rather heavy, moderately full, very inequi- partite; beaks rather low, eroded, but apparently nearly smooth; epidermis moderately dense, chestnut colored, light at the beaks, becoming dark at the margins, very slightly shining; rayless; every- where showing rather distant, low-rounded, concentric growi;h ridges with many fine, wavy, concentric, incised lines between and overlying them; obsolete radiating lines perceptible without a glass over most of the surface ; posterior ridge low, rounded, posterior sulcus shallow and not well defined, much roughened by the growth lines; hinge line nearly straight, about half the length of the shell, with a long, thin ligament, edentulous; anterior margin narrowly and rather evenly rounded, base a long, even curve; posterior margin very obliquely truncate above, sharply rounded below; beak cavities broad and shallow, cicatrices smooth, showing continuous nacreous layers, anterior distinct and well impressed, posterior scarcely defined; nacre silvery -white, iridescent throughout; pallial line distinct. Animal unknown. Length 77, width 37, diam. 23 mm. A single well-preserved specimen of this species, taken on the Island of Mexiana, was sent from the Goeldi Museum. The species is nd^med for Dr. W. H. Dall, of the National Museum. 668 PROCEEDINGS OF THE ACADEMY OF [DeC, Anodontites bartschi n. sp. PI. XXVII, 3, 4. Shell small, uniformly thin, obliquely subelliptical, moderately full, inequipartite; rather smooth, the growth lines being fine and low, and with obsolete radiating lines produced by a peculiar wrinkle striation irregularly placed, which is not constant, having largely disappeared from the type; epidermis thin, light yellow-olive to dark yellow-olive, rayless; posterior ridge low, with a small, sharp duplication, posterior sulcus shallow; anterior margin subangulate above, regularly and slantingly rounded into the base, the outline of the base becoming nearly straight posteriorly; posterior margin obliquely truncate, forming a straight line contained 2| times in the greatest length; obtusely angulate above, terminating below in a rather broad posterior point; upper margin and hinge line slightly curved; edentulous with a very narrow, thin ligament; beaks rather full, eroded, but apparently smooth; beak cavities moderate, cica- trices indistinct, the anterior very large; pallial line indistinct; nacre silvery-white, not brilliant, but slightly iridescent throughout. Animal unknown. Greatest length 35.5, width 25, diam. 14 mm. Three specimens of this species, all probably somewhat immature, taken at Boim e Pinhel, on the left bank of the Rio Tapajoz, were sent from the Goeldi Museum. The species differs from all the round species of Anodontites by the truncation of the posterior extremity. It is named for Dr. Paul Bartsch, of the National Museumi. Anodontites sp. undet. A single specimen of this genus, taken with the preceding, too young to identify, but not corresponding to any of the foregoing species, was sent from the Goeldi Museum. Appendix: Notes on Gundlachia Pfr., by H. A. Pilsbry. The peculiar Ancyloids known as Gundlachia have been the occa- sion of some speculation and difference of opinion among concholo- gists. That Gundlachia is dimorphic, sometimes maturing as an Ajicylus without the intervention of a septate stage, was first intimated by Guppy in 1870 ^ and later by several other naturalists. It was observed by the present writer about 1886,- and recently by Mr. J. A. Allen, who proved the identity of the septate and non- septate forms by breeding them in jars. ^ Guppy, American Journal of Conchology, VI, 1870, p. 311. 2 Pilsbry, Nautilus, IX, 1895, p. 63. Cf. also Bryant Walker, Nautilus, XXI, 1907, p. 14. * 1913.] NATURAL SCIENCES OF PHILADELPHIA. 669 Nordenskiold ^ and Dall'' consider Gundlachia to be merely a dry season or winter stage of Ancylus. As Dr. Dall expresses it, "an Ancylus which has under favorable circumstances been able to form a calcareous epiphragm and survive the winter, which ordinarily kills the great mass of individuals, and while retaining the shell of the first year, to secrete an enlarged and somewhat discrepant shell during its second summer," this ability not being possessed by all Ancyli. The rarity and sporadic occurrence of Gundlachia are apparently favorable to this view; yet on closer inspection, less favorable than at first appears. Of the Gundlachias I have myself collected, or known from specimens taken in regions where the Ancylus fauna is well known, not one can be regarded as a form of any known Ancylus of the region. Each one of the known United States forms of Gundlachia is specifically distinct from any Ancylus, wholly apart from the septum-forming ability. The case would be quite different if the only difference between a Gundlachia and some Ancylus of the same fauna was the presence of a septum in some individuals. Ancylus commonly lives over winter in this latitude. I have repeatedly collected specimens in the spring, in which the previous season's growth was distinguishable from the new growth by greater solidity and a coat of iron stain. In the Delaware River I have taken specimens in winter from under stones at low water, in places which had previously been covered with ice. In size they varied from quite small to full grown. The only case known to me where a Gundlachia has been identified with a known species of Ancylus is Nordenskiold's reference of a form from the Chaco region to A. moricandi Orb. It is quite possible that this identification might l^e altered on thorough comparison of authentic specimens. Dr. Dall has proposed a convenient terminology for the post- embryonic stages in the life of Gundlachia, as follows: I. Ancyloid stage, shell simple, .4nc?/Zws-shaped. II, Septate stage, a deck or septum added. III. Gundlachia stage,^ an Ancylus-like shell added to the margins of the aperture of the septate stage, the latter lying obliquely upon it. The form in which there is no septate stage, and which is indis- 3 Zoologischer Anzeiger, XXVI, 1903, p. 590. ^ Nautilus, XVII, Jan., 1904, p. 97; American Naturalist, XLV, March, 1911, p. 175. ' The genus Gundlachia was originally described from specimens in the "septate stage," but later was found in the third stage. 670 PROCEEDINGS OF THE ACADEMY OF [DeC, tinguishable from Ancylus, may be termed the non-septate form. It is not merely the ancyloid stage grown large, because the young non-septate never has the shape of the ancyloid stage. When of the same length as that, it is a wider shell. This is certainly the case in the Illinois species which I collected about 1886, and, so far as I can make out, in Mr. Allen's Ohio specimens also. It appears, therefore, that in all post-embrj'onic stages the septate form differs from the non-septate. It seems certain that the tj^pical forms of Ancylus and the great majorit}' of known species never develop a septate form, which, from Mr. Allen's observations, seems dependent upon physical conditions. Whether Gundlachia is to be retained as a genus depends upon whether we consider the ability to produce the septate form to be a character of taxonomic value. To me it appears to be so, even though the character is not expressed in all individuals or under all conditions. Gundlachia bakeri n. sp. PI. XXVI, figs. 1, 2, 3. In the second or septate stage the shell is oblong, the width con- tained twice in the length; sides slightly convex. The obtuse, rounded summit is very close to the posterior end and overhangs the right margin. Back and left slope are strongly convex; posterior and right slopes short and steep. There are a few low, wave-like concentric wrinkles near the embryonic shell and some faint radial lines on the anterior part. The sides curve into the deck, except posteriorly where there is an angle or keel at junction of upper surface and deck. The deck or septum is convex and covers about two-thirds of the lower face. The aperture is oval, its margins elevated, blackish, and a little reflexed. Length 2.8, width 1.4, alt. 1 mm. Several dozen specimens were taken during the dry season in an artificial lake or pond in one of the small parks of the city of Para situated between the public market and the Cathedral. Over a hundred specimens of Physa rivalis M. & R., Planorbis anatinus Orb., and what the collector supposed to be Ancylus were taken from the dead leaves and debris in the pond and preserved together in alcohol. Part of the collecting was done by stripping the leaves. On examina- tion of the bottle after arrival in Philadelphia a number of specimens of the septate form of Gundlachia were discovered and the supposed Ancylus is probably the non-septate form, presumably of the same species. The pond is two hundred or more feet long, rather narrow and 1913.] NATURAL SCIENCES OF PHILADELPHIA. 671 winding, and averages three or four feet deep. It empties by an overflow and is supplied by a small fountain which was always playing on the numerous occasions when the park was visited. The large amount of dead leaves and debris on the bottom of the pond makes it probable that it has not been drained for a long time, if ever, since its construction. This species, named for Dr. Fred Baker, who collected the series, differs from the form figured by Nordenskiold by its smaller size and the far more eccentric apex. The position of the apex will also serve to separate G. bakeri from G. textilina Guppy of Trinidad and all other known species of the genus. A large series taken is very constant in size and form. Specimens in the first or Ancyloid stage and others with the septum in various degrees of development occurred in the same gathering. There were none, however, in the third or complete Gundlachia stage. With the Gundlachia just described there were many specimens of an Ancyloid which may be the dimorphic form alluded to above, in which the septate stage is omitted, or possibly it inaj^ be a distinct species of true Ancylus.'^ These shells (PI. XXVI, figs. 4 to 8) are thin, fragile, corneous, and diaphanous, oval, the apex slightly behind the posterior fourth of the length and almost overhanging the right margin; anterior and left slopes convex, posterior and right slopes more or less concave; apex rounded, with a slight apical depression, the embryonic shell minutely pitted; surface elsewhere marked with faint growth lines and minute, unequal radial striae, wanting on the short slope below the apex. Length 4.1, width 3, height 1 mm. With some resemblance to A. excentricus Morelet, this form differs by its broader contour and more eccentric apex. The young shell, 2.4 mm. long (PL XXVI, fig 4), is much wider than the ancyloid stage of G. bakeri of similar length, the breadth con- tained only about 1.4 times in the length, while an Ancyloid of the same length is twice as long as broad. Whether this form will turn out to be the non-septate form of G. bakeri or a distinct species of Ancylus is an open question, but I incline to the former view. 6 The South American Ancyli do not belong to any of the subgenera estab- lished for northern species. In most of them the embryonic shell is punctate, pitted, or pock-marked and of an obtuse, rounded shape, with the usual apical depression. This group may be called Hebetancyliis, type A. moricandi Orb. Others have an acute, hooked apex, also shghtly punctate near the margin of the embryonic shell, subgenus Uncancylus, type A. barilensis Moricand. Both groups are sinistral. 672 proceedings of the academy of [dec, Reference to Plates XXI-XXVII. Plate XXI. — Figs. 1, 2.^Helicina schereri n. sp. Fig. 3. — Helicina guajarana n. sp. Figs. 4, 5. — Helicina laterculus n sp. Figs. 6, 7. — Guppya mayi, n. sp. Figs. 8, 9. — Strobilops braziliana n. sp. Fig. 10. — Leptinaria imperforata n. sp. Fig. 11. — Leptinaria perforata n. sp. Figs. 12-14. — Zonitoides par ana n. sp. Plate XXII. — Figs. 1, 2. — Solaropsis rugifera Dohrn. Figs. 3, 4.—Happia snethlagei n. sp. Figs. 5-7. — -Streptaxis cookeana n. sp. Figs. 8~10. ^AStreptaxis abunaensis n. sp. Figs. 11-13. — -Eiitodina jeckylii n. sp. Figs. 14, 15. — Systrophia eatoni n. sp. Figs. 16, 17. — Diplfldon obsolescens n. sp. Fig. 18. — Orlhalicus sultana meobambensis Pfr. Fig. 19. — Psadara derbyi cearana n. subsp. Plate XXIII. — Figs. 1-4. — Drymceus branneri n. sp. Figs. 5-8. — Drymoeus linostoma suprapunctatus n. subsp. Figs. 9, 10. — Tomigerus ]iilsbryi n. sp. Figs. 11, 12. — Odontostomus inflatus costulatus Anc. Figs. 13, 14. — Buliinulus rochai suturalis n. subsp. Figs. 15, 16. — Odontostomus scabrellus cylindricus n. subsp. Fig. 17. — Buliinuliis rnrhai taipuensis n. subsp. Fig. 18. — OdoNtos/oiinis infhitus maranguapensis n. subsp. Figs. 19, 20. — Bulimulus rochai n. sp. -Figs. 21, 22. — -Corona regalis Hupe. Plate XXIV. — Figs. 1-7. — Doryssa transversa jaryensis n. subsp. Figs. 8, 9. — Doryssa transversa tapajosensis n. subsp. Fig. 10. — Doryssa rex n. sp. Figs. 11, 12. — Doryssa transversa tapajosensis n. subsp. Figs. 13, 14. — Doryssa transversa, var. near macapa. Fig. 15. — Doryssa rex n. sp. Figs. 16, 17. — Doryssa rex regina n. subsp. Plate XXV. — Figs. 1, 2. — Doryssa globosa n. sp. Figs. 3, 4. — Doryssa heathi n. sp. Figs. 5, 6. — Doryssa starksi n. sp. Fig. 7. — Doryssa heathi n. sp., young shell. Fig. 8. — Doryssa iheringi n. sp. Fig. 9. — Doryssa cachoeircE n. sp. Fig. 10. — Doryssa cachoerioe. sulcata n. subsp. Figs. 11, 12. — Doryssa tucunareensis n. sp. Figs. 13, 14. — Doryssa starksi n. sp. Fig. 15. — Hemisinus flammeus n. sp. Fig. 16. — Hemisinus flammeus elongatus n. subsp. Plate XXVI. — Figs. 1, 2, 3. — Gundlachia baker i Pils., n. sp. Dorsal, lateral, and ventral views of the type. Fig. 4. — Gundlachia bakcri. Very young individual of non-septate form. Figs. 5-8. — Gundlachia bakeri. Non-septate form, dorsal, lateral, ventral, and posterior views of the adult stage. Figs. Q-ll. —Segmentina paparyensis n. sp. Fig. 12. — Eupera sp. undet. Figs. 13, 14. — Idiopyrgus pilsbryi n. sp. Fig. 15. — Littoridina manni n. sp. Plate XXVII.— Figs. 1, 2.—Anodontites dalli n. sp. Figs. 3, 4. — Anodontites bartschi n. sp. Fig. 5. — Diplodon kelseyi n. sp., young. Figs. 6, 7. — Diplodon kelseyi n. sp. Figs. 8, 9. — Hijrin jamauchimensis n. sp. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 673 CTJRIMATUS SPILUEUS COPE, A WRONGLY IDENTIFIED CHARACIN. BY HENRY W. FOWLER. In 1878 Prof. Cope lists the specimens described below as Curimaiusr spilurus Giinther without comment. In 1906 I followed this identi- fication, though recently have been able to examine Gunther's species, and find it distinct. Cope's species therefore requires a new name, and is evidently the type of a new subgenus as well. XYROCHARAX subgen. nov. Type Curimatus stigmaturus sp. nom. nov. Back elevated or hunched conspicuously in front. Scales large, smooth, in even lengthwise series. Caudal lobes naked. Small fishes of the Amazons. {Eupov, razor; Mpa^, Charax; with reference to the trenchant elevated predorsal region.) Curimatus stigmaturus sp. nom. nov. Curimatus spilurus (not of Giinther) Cope, Proc. Aincr. Philos. Soc. Phila.,. XVII, 1878, p. 684. Peruvian Amazon. Curimata spilura Fowler, Proc. Acad. Nat. Sci. Phila.. 1906, p. 297, tig. 4 (Cope's material). Head 2^; depth 2|; D. iii, 9; A. iii, 8; P. i, 10; V. i, 8; scales 30 in 1. 1. to caudal base, and 3? more on latter; 6 scales above 1. 1. to dorsal origin; 5 scales below 1. 1. to ventral origin; 4 scales below 1. 1. to anal origin; predorsal scales 9? (damaged); snout 3| in head; eye2|; maxillary 4|; interorbital 2f ; least depth of caudal peduncle 21 Body elongate, well compressed, deepest or hunched at dorsal origin, so that predorsal forms well-curved convex profile sloping very steeply to occiput, the incline not broken. Predorsal also trenchant or with slight median keel. Postdorsal constricted, though convex. Preventral and postanal convex, first broadly so. Post- ventral apparently trenchant. Caudal peduncle compressed, deep, and least depth nearly equals its length. Head large, depressed above or in front, which level and obliquely and steeply inclined to predorsal in nearly straight line, as seen in profile. Head with sides flattened and well constricted below to form rather narrow edge wich nearly horizontal profile. Snout 674 PROCEEDINGS OF THE ACADEMY OF [DeC, broad, depressed or flattened, and trifle wider than long. Eye large, little elevated, a little anterior. Adipose eyelid not developed. Mouth broad, terminal, with short commissure about half way in snout length. Maxillary small, thin, about f in snout. Lips thin, and rather firm cutaneous edges without cilia. Tongue not distinct. Jaws about even, rami wide and little elevated in mouth. Nostrils together, about last third in snout length, anterior simple pore and posterior in crescent. Interorbital broad, flat. Preorbital rather narrow, equals long infraorbital, both smooth. Preopercle con- current with infraorbital and cheek thus covered entirely by last. Opercle large, smooth. Occipital fontanel broad, uninterrupted from internasal space to occiput. Occipital process short and equilaterally triangular. Gill-opening extends forward about midway in eye. No gill- rakers. Filaments about half of eye. Isthmus narrowly constricted, convex. Scales large, cycloid, exposed edges entire, attached edges usually with 3 lobules. Scales of mostly uniform size, though a little smaller on caudal base. Scales on isthmus slightly smaller than those on breast, and latter equal those on sides of body, also of uniform size over their area. Ventral with small axillary pointed scaly flap. L. 1. complete, straight, inclined parallel with axis of body from shoulder to caudal base medianly. Tubes simple, and about equally developed anteriorly as elsewhere. Hind edge of each scale in 1. 1. with slight notch. ^ Dorsal origin midway between snout tip and origin of adipose fin, and apparently front rays little longer than others (fin damaged). Adipose fin slender, about long as eye. Anal inserted well before front of adipose fin, or about midway between ventral origin and caudal base, front rays longest (fin damaged). Pectoral short (damaged). Ventral inserted about opposite middle of dorsal base, iin pointed and nearly reaches anal. Vent close before anal. Color in alcohol brownish, paler on sides of head and body, and lower regions, where also with slightly silvery tinge. Iris whitish. Including 1. 1. for width of its scales its entire extent paler band. Caudal blackish basally, or spot thus formed about equal to eye, and but slightly reflected on median rays for a short space. Fins pale brownish. Length 38 mm. (caudal damaged). Not shown on my figure in Proc, 1906. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 675 Type, No. 21,424, A. N. S. P. Nauta, on the Maranon River, Peru. 1873, Prof. James Orton. From Prof. E. D. Cope. Also Nos. 21,425 to 21,427, A. N. S. P., paratypes, same data. These show: Head 2f to 2|; depth 2| to 2f ; D. iii, 9; A. iii, 7 or iii, 8; scales 29 or 30 in 1. 1. to caudal base and 3 more on latter; 5 or 6 scales above 1. 1.; 5 scales below 1. 1. to ventral origin; 10 predorsal scales (mostly damaged); snout 3| to 3f in head; eye 2f to 2|; maxillary 4f to 4f; interorbital 2| to 2f ; length 33 to 38 mm. (caudals damaged). This species is related to Ciirimatus dorsalis Eigenmann and Eigenmann.2 In C. dorsalis the preventral region is described with a median series of large scales, though in the present species they are uniform in size. C. dorsalis has persistent scales, with the broadly rounded posterior margin crenate, and in C. stigmaturus the scales have the rounded posterior margin entire. C. dorsalis has the pores of the anterior scales of the lateral line imperfectly developed or wanting, while in C. stigmaturus they are about equally developed. C. dorsalis has origin of dorsal midway between tip of snout and tip of adipose fin, while it is more anterior in C. stigmaturus. The other characters given for C. dorsalis are largely in agreement, though do not appear to me to be construed as due to age. (Iriyfia, blotch; oopa, tail; on account of the dark caudal spot.) s Ann. N. Y. Acad. Sci., IV, 1889, pp. 4-20. » 676 PROCEEDINGS OF THE ACADEMY OF [DeC. NOTES ON SOME COSTA RICAN ARACHNIDA BY NATHAN BANKS. In the Proceedings of the Academy of Natural Sciences of Philadelphia for 1909, pp. 194-234, I published a list of Arachnida from Costa Rica kindly sent me for determination by Prof. Tristan and Dr. Biolley. Since then Prof. Tristan has sent a further con- signment of these animals, and Prof. Calvert has sent me the Arach- nids collected during his trip in that country (May, 1909, to May, 1910) . The following notes are based on these collections. The types from the material sent by Prof. Calvert are in the Academy of Natural Sciences of Philadelphia, the others are in the author's collection. DRASSID^. ZIMIROMUS n. gen. A Drassid; eyes as figured; both rows strongly procurved; A.. M. E. larger than the other eyes; lip nearly square, maxillae long and impressed, a black ridge on the outer tip, inner tip with brush of black hairs; a short dorsal groove; spinnerets similar to Zimiris; legs slender, with spines, trochanter about one-half the length of the coxa; claws distinctly toothed. Differs from the other Prodidomoid Drassids in the strongly procurved eye-rows and large A. M. E. Zimiromus fragilis n. sp. PL XXVIII, fig. 9. Cephalothorax, mandibles, and sternum pale yellowish; legs very pale, femora darker; abdomen gray, nearly ])lack above, un- marked, w^ith stiff black hairs at base. Legs slender, with only a few spines on anterior pairs, more numerous on the hind legs, the latter much longer than the abdomen. Vulva large; a long cavity containing a pale transversely ridged tongue. Length 5 mm. From Turrialba, Costa Rica (Tristan). Teminius conjuncta n. sp. Pl. XXVIII, fig. 2. Cephalothorax, mandibles, and sternum dark reddish-brown; legs more yellowish, blacker on femora above and more red-brown on the tarsi and metatarsi I and II; abdomen dark gray, with black 1913.] NATURAL SCIENCES OF PHILADELPHIA. 677 hair. Cephalothorax moderately long, much narrowed in front, legs rather stout, tarsi and metatarsi I and II heavily scopulate beneath, tibia I with one apical spine beneath, tibia II with an apical spine and one near the middle; no spines above on tibise III or IV, but several below and on sides. Posterior eye-row barely procurved, M. E. scarcely oval, slightly more than their diameter apart, and about twice as far from the equal laterals. Anterior eye-row procurved, all large, M. E. less than their diameter apart, .and about half as far from the slightly smaller laterals. Length 12 mm. From St. Maria Dota, Costa Rica (Tristan). CLUBIONIDiE. Clubiona tigrina Cambridge. Near Hacienda Guachipelin, Guanacaste; 1,700 feet. Jan. 15, 1910 (Calvert). Chemmis punctigera Cambr. PI. XXVIII, fig. 8. This form may be distinct from C. frederid Simon; the figure I give of the vulva agrees better with that given by the elder Cam- I)ridge for this species and is quite unlike that given by the younger Cambridge for C. frederici; the markings are broken up into small spots. Turrialba, Costa Rica (Tristan). Juan Vifias, clearing near Rio Reventazon, May 3, 1910 (Calvert). Pelayo insignis Bka. PI. XXVIII, fig. 14. A female of this species from St. Maria Dota, Costa Rica, vulva .as shown in figure ; the basal median mark of the abdomen is broken up into three spots and the apical mark contains a transverse pale spot. Anypliaena pretiosa n. sp. PI. XXVIII, fig. 4. Pale yellowish, a dark stripe each side on the cephalothorax; many small dark spots on abdomen, in the middle behind they unite to form a series of chevrons, a dark spot at base of the tibiae; tibiae I and II with four pairs of spines l^eneath. Mandibles vertical, each with two dark lines in front. A. ]M. E. much smaller than the other eyes. Vulva as figured. Length 5 mm. From St. Maria Dota, Costa Rica (Tristan). Anyphaena furcatella n. sp. PI. XXVIII, fig. 5. Pale yellowish; a faint dark stripe each side on the cephalothorax; legs very long and slender and with very long spines; coxae all 678 PROCEEDINGS OF THE ACADEMY OF [DeC.^ unarmed. A. M. E. very much smaller than the other eyes; man- dibles slender, vertical; the tibia of the male palpus is broad and at tip with two acute projections, one of which has a short upper spur. A female, which may belong to the same species, is unmarked, and has a vulva as figured. Length 5 mm. From St. Maria Dota, Costa Rica (Tristan). Sillns putUS Cambridge. Cache, March 7, 1910 (Calvert). AGBLENIDJE. Agelsena sp. Juan Viiias, 3,200 feet, in a bromeliad, April 26, 1910, a young^ specimen (Calvert). THERIDIID^. Theridion bioUeyi Banks. PI. XXVIII, fig. 7. The palpus of the male (previously unknown) is shown in figure; the markings are similar to those of the female. Lithyphantes lugubris Cambr. From Cache, March 9, 1910 (Calvert). BPEIRID^. Edricus tricuspis Getaz. Unknown to the Biologia; one female from Juan Vinas, "farther waterfall," 29 Sept., 1909 (Calvert). A figure of the dorsum is given; the abdomen is shorter than in E. crassicauda. The length, 5 mm., given in the Biologia is wrong, as Getaz says the abdomen is 9 mm. long. Tetragnatha alba Cambridge. Santa Cruz, Jan. 20, 1910, and Quebrada de Panteon de Liberia, Jan. 12, 1910, both in Guanacaste (Calvert). Tetragnatha antillana Simon. Cache, stream through coffee plantation, March 3, 1910 (Calvert) - Tetragnatha guatemalensis Cambridge. Banana River region, Nov. 4-10, 1910 (Calvert). Tetragnatha mexicana Keyserling. Juan Vinas, laguna, 3,300 feet, Feb. 18, 1910 (Calvert). Tetragnatha tenuissima Cambridge. Juan Vinas, Feb. 15, 1910 (Calvert). Leucauge hortornm Hentz. Juan Vinas, laguna, Oct. 5, 1909 (Calvert). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 679 Singa dotana n. sp. PI. XXVIII, fig. 1. Cephalothorax wholly pale yellowish, also the mandibles, palpi^ and sternum; legs with deep black bands on apices of all femora, on tips, and partly on sides of patellae, and a fine dot near middle and tip of tibiae. Abdomen gray, with some irregular blackish patches on the basal part, and many silvery -white spots above and below; each side of the spinnerets is a jet-black spot. Abdomen much broader than long and concave behind. Length 3 mm., width of the abdomen 3 mm. From St. Maria Dota, Costa Rica (Tristan). Related to S. abbreviata, but distinct by markings and shape of the vulva. Argiope argentata Fabricius. Alajuela, Sept. 9, 1909 (Calvert). Mangora trilineata Cambridge. Juan Vinas, 2,500 feet. May 3, 1910; 3,300 feet, Oct. 5. 1909 (Calvert). Mangora picta Cambridge. Juan Vinas, Reventazon Valley, 2,500 feet, in unrolled Heliconia leaves. May 1, 1910 (Calvert). Acrosoma inaequalis Cambridge. Near Cartago, Feb. 1910; Juan Vinas, 3,300 feet, July 27 and Sept. 29, 1909 (Calvert). Acrosoma 12-spinosa Keyseriing. Alajuela, Sept. 6, 1909 (Calvert). Gasteraoantha koohi Butler. Juan Vinas, ''farther waterfall," Sept. 29, 1909 (Calvert). SPARASSID^. Selenops mexioana Keyseriing. Pefia Blanca, Rio Naranjo Valley, near Cache, in arboricolous bromeUad, March 9, 1910 (Calvert). OTENID^. Cupiennius coccineus Cambr. Described from Panama; one from Peha Blanca near Cache, in arboricolous bromeliad, 19 March, 1910 (Calvert). Cupiennius griseus Cambridge. Juan Vinas, April 29, 1910, one specimen in house (Calvert). Treohalea oonvexa Cambridge. Quebrada de Salas, east of Atenas Station, Pacific Railroad^ 680 PROCEEDINGS OF THE ACADEMY OF [DeC, April 8, 1910; Quebrada Clara, north of Liberia', Guanacaste, Jan. 13, 1910, immersed itself clinging to rock face (Calvert). Ctenus sp. Juan Yifias, 3,200 feet, in arboricolous bromeliad, April 26, 1910, one immature specimen (Calvert). Tinus nigrinus Cambridge. Rio Liberia and Quebrada de Panteon, Liberia, Guanacaste, Jan. 11 and 12, 1910; along the banks; wings, etc., of Odonata {Hetcerina, Argia and Perithemis) , in its webs, one female with its €gg-ball (Calvert). LYOOSIDiE. Xycosa brevitarsis Cambridge. Near Hacienda Guachipelin, Guanacaste, 1,700 feet, Jan. 15, 1910 (Calvert). Pardosa sp. Crater of Volcano Irazu, 10,880 feet, April 1, 1910, one young ,specimen (Calvert). OXYOPIDiE. Oxyopeidon molestum Cambr. Juan Villas, near Rio Reventazon, May 3, 1910 (Calvert). ATTID^. Dendryphantes maxillosus Cambr. From Juan Vinas, July, 1909 (Calvert). Cobanus mandibnlaris Peck. From Banana River region, 4 Nov., 1909 (Calvert). Sidusa fulvoguttata Cambridge.' Juan Vinas, 3,200 feet, in arboricolons bromeliad, April 26, 1910 (Calvert). Thiodina retarius Hentz. Juan Vinas, 2, .500 feet, near Rio Reventazon, March 21, 1910 (Calvert). PHALANQID^. Hernandria ventralis n. sp. Black; ventral segments with silvery basal band, also silvery on sides of the posterior segments. Eye-tubercle smooth, with two small granules each side above; dorsal scutum divided into three transverse parts; each with a pair of pale spots, the first part also 1913.] NATURAL SCIENCES OF PHILADELPHIA. 681 divided on the middle line ; the surface of scutum smooth ; posterior segments each with a transverse row of granules, a median one on the third segment much larger than the others; legs, especially the hind pair, with rows of granules, bearing fine hairs; a large spur above on tip of coxa IV; tarsal joints 5, 6, 8, 6. Palpi with long bristles; tibia and tarsus each with four on outer side, the first and third long, the others very short. Length 6 mm. From St. Maria Dota, Costa Rica (Tristan). The silvery bands on the venter are very characteristic. Cynorta bip^uttata Cambridge. i La Emilia, near Rio Santa Clara, 980 feet, Nov. 17-19, and Juan Villas, 3,300 feet, Oct. 1, 1909, in bromeliads (Calvert). Cynorta flavornata n. sp. Dark brown; sides reticulate with yellowish, and emitting branches to middle of the body; two dots on the eye-tubercle; two large • yellow spots above on the anal segment almost touching each other ; a large yellow spot on each hind coxa; legs pale, densely marked with fine black lines. Dorsum with a pair of low, basal, acute tubercles and a pair of long spines behind, not one-half their length apart, and with very slender tips; surface of dorsum and posterior segments without granules. Femur IV twice as long as the width of body and plainly longer than length of body; tarsal joints six, fourteen, nine, and ten; first three of tarsus I enlarged. Length 6 mm., hind femur 10 mm. From San Jose, Costa Rica (Tristan). Cynorta longispina Cambridge. La Emilia, in epiphytic bromeliad, Nov. 16, 1909 (Calvert). Cynorta oculata n. sp. Red-brown, legs pale, finely maculate with black, dorsum with four white rings surrounding the four tubercles, venter with two of the basal segments pale on the middle of hind margin, last segment with white mark each side, white spot surrounding the spiracles, and a white stripe above coxae IV. Dorsum smooth, with four humps, the basal pair low and blunt, the apical pair high, but more 1 [Mr. Banks has recently re-examined a couple of specimens from the same bromeliad, quoted on page 405 of volume XXII of Entomological News as Cynorta sp., and writes: "The Phalangids are young Cynorta; have long palpi; when mature, palpi are very much shorter. I cannot be sure of species; looks like C. albomaculata Cambr., which is common in Costa Rica." The locality whence these specimens came was Juan Vinas, Oct. 3 and 4, 1909.^ — P. P, Calvert.) 45 682 PROCEEDINGS OF THE ACADEMY OF [DeC, than twice their height apart, and each with a rounded tip; tarsal joints 6, 14, 9, 10; hind coxae with a few granules on outer side. Length 5.5 mm., femur II, 10 mm.; femur IV, 9 mm. From Ste. Maria Dota, Costa Rica (Tristan). Cynorta oonspersa n. sp. Related to C. flavornata, with large yellow spot on outer side of each hind coxa and small dots on the eye-eminence, and a pair of large spots behind on last segment; these last marks, however, are plainly made up of three spots joined together. The dorsum has a great number of small, rounded yellow dots, often marking an eleva- tion, these are most numerous on the sides, two in front of eye-emi- nence on the front margin. The posterior spines are more slender than in C. flavornata and more than their length apart, there are no anterior humps. The tarsal joints are 6, 13, 9, 11 ; femora II and IV are much longer than the body, second joint of mandible scabrous above, the palpal joints not as broad as in that species. . Length 5 mm.; femur I, 8 mm.; femur IV, 7 mm. From Juan Vinas, 2,500-3,000 feet, in arboricolous bromeliads, March 20 and 21, 1910 (Calvert). STYGNOLEPTES n. gen. A Gonyleptid ; the hind coxae larger than others and much broader than first segment of abdomen; all coxae distinct; hind coxae sepa- rated by a triangular plate; spiracles distinct. Palpi not one-half the length of the body, rather slender, with bristles; all legs short, and tarsi with few joints; eye-tubercle broad and low, with a little granule above on each side near eyes. Cephalothorax small com- pared to the abdomen, the basal dorsal scutum of abdomen undivided by grooves or furrows. Stygnoleptes analis n. sp. PI. XXVIII, fig. 6. Body reddish, palpi yellowish, legs mostly brown, the bases and the articulations pale. Dorsal surface finely granulate. The cephalothorax not more than one-third as wide nor more than one-fourth as long as the abdomen; the dorsal. scutum of abdomen with serrate sides, beyond are four posterior segments, in one speci- men the third and fourth bear a pair of submedian tubercles, about twice their length apart; on the anal plate is a long spine projecting behind the body. The palpi have two bristles on outer edge of both tibia and tarsus, and near base of the femur are two situate on tubercles. The coxae are coarsely granulate, the legs short, none of the femora more than one-half the width of the body; the hind 1913.] NATURAL SCIENCES OF PHILADELPHIA. 683 legs are rather longer than the second pair, femora I and II have beneath one or two small spines near tip; leg IV is heavier than the others, and more coarsely granulate; the trochanter has a stout spur, a row of spurs beneath on the femur, one above near tip of the patella, the tibia with one above near base, and a very large one below at middle, and beyond are two smaller ones; all the legs are slightly roughened and provided with very fine, short hairs; tarsus I has three joints, II with six joints, III with four joints, the basal one as long as others together; IV with five joints, the basal one the longest. Length 3.5 mm. From Turrialba, Costa Rica (Tristan). Meterginus signatus Banks. Juan Vinas, in epiphytic bromeliad ("fourth bromeliad") ou Rio Reventazon Road, Oct. 3 and 4, 1909 (Calvert; quoted in Ent. News, vol. XXII, p. 405, 1911). Liobunum biolleyi Banks. Cerro Las Pilas, west of Santa Cruz, Guanacaste, a swarm in a dry brook bed, Jan. 21, 1910 (Calvert). Liobunum foveolatum Cambridge. Rio Oro Valley near Cache, March 8, 1910, a swarm (Calvert). PSBUDOSOORPIONIDA. Chelanops nodulimanus Tomosv. On the Harlequin beetle, Acrocinus longimanus, from Juan Vifias (Calvert). Chelanops uniformis n. sp. PI. XXIX, fig. 16. Hard parts reddish -brown, legs paler. Body rather long, the cephalothorax plainly longer than broad behind, narrowed and rounded in front, minutely granulate, with two transverse furrows, the first at about middle, surface with many short clavate hairs; no eye-spots. The abdominal scutse finely granulate, each with about seven clavate hairs behind. Pedipalpi slender, longer than the body; trochanter, femur, and tibia finely granulate, and with clavate or subclavate hairs, hand smooth and with simple hairs; femur fully as long as the cephalothorax, nearly straight in front, slightly convex behind; tibia rather shorter than femur, strongly convex on inner basal part, outer side more convex near tip; hand but little broader than tibia, twice as long as broad, neither side much convex, fingers nearly as long as the hand, but little curved; 684 PROCEEDINGS OF THE ACADEMY OF [DeC, legs with some clavate hairs near tip of femora, and on the tibia above. Length 3 mm.; pedipalpi 3.3 mm. From bromeliads at La Emilia, Juan Vinas, and Reventazon Valley, below Juan Viiias, Costa Rica, Oct. and Nov., 1909; March and April, 1910 (Calvert). The pedipalpi are very similar to those of CheUfer canestrinii Balzan. SOORPIONIDA. Centrurus bicolor Pocock. One specimen taken in the office of Philadelphia South Farm (Banana River district), Costa Rica, Nov. 7, 1909 (Calvert). Centrurus margaritatus Gerv. From Turrucares, August 14 and 15, 1909 (Calvert). SOLPUGIDA. Ammotrecha stoUi Pocock. Atenas Station, Pacific Railroad, one specimen running about in bed at hotel, April 8, 1910, 9 P.M. AOARINA. Canestrinia blattophaga Banks. From Santa Cruz, 21 Jan., 1910 (Calvert), in a vial with various insects, including a large cockroach, Archimandrita marmorata Stoll, identified by Mr. J. A. G. Rehn. Trombidium furcipes n. sp. PI. xxx, fig. 21. Red. Body nearly twice as long as broad, broadest at humeri, constricted behind the humeri and again at insertion of third legs; crista metopica (or groove) reaching to abdomen, with a papilla near posterior third; two sessile eyes each side, the inner one much the smaller. Body densely clothed with minute, short, dense fascicles of hair, each arising from -a pit; so close are these as to give the abdo- men a pitted appearance from' above; legs with short, fine hairs, leg I longer than body, leg IV plainly shorter, and all tarsi at end have a long deep slit in which are located the claws, each side of slit the hairs are long and dense, so that seen from the side the tarsi appear abruptly clavate at tip, and from above appear forked; tarsi longer than preceding joint; palpi quite long, with only short hairs, the thumb fusiform and hardly longer than the long claw. Length 2 mm. From Juan Vinas, Costa Rica, June 23 to 29, 1910 (Calvert). 1913.] NATURAL SCIENCES OF PHILADELPHIA. 685 Ehyncholophus stolli n. sp. PI. XXX, fig. 22. Red. Body about one and two-thirds as long as broad, broadest at humeri, slightly narrowed at insertion of third legs, broadly rounded behind, clothed with very short dense simple hairs, dorsal groove long, reaching much behind eyes, and with a papilla at about one-third way from end; one eye each side. Legs slender, first pair about as long as body, second pair very short, last joint of leg I about one-half the length of the preceding, last joint of leg IV about one-third of preceding joint; palpi with large clavate thumb; genital aperture about one-half its length in front of the small anal aperture, the latter with a dark strip reaching out each side. Length 3.5 mm. From San Jose, Costa Rica (Tristan). TJropoda olavisetosa n. sp. PI. XXIX, fig. 19. Yellowish. Body about one and a half times as long as broad, broadest behind middle, but not narrowed much in front; dorsum with many long, stout bristles, those around the margin (about 15 each side) are simple, some toward tip are very long, four in front are close together in pairs, on middle of dorsum the bristles are plainly clavate, especially in front, those behind hardly so; legs rather stout, all with few simple bristles, hind coxte more approximate than others, hardly more than diameter apart; venter with an oblique ridge behind hind femur; anus about its length in front of margin, a pair of bristles behind it. Length .65 mm. From Juan Vinas, Costa Rica (Calvert), on the Harlequin beetle, Acrocinus longimanus. Uropoda bisetosa n. sp. PI. XXIX fig. 15. Brownish-yellow. Body about once and two-thirds as long as broad, broadest rather behind the middle, broadly rounded behind, in front tapering, and near tip with concave margins so that there is a prominent process in front which bears two small bristles; dor- sum smooth, without hairs; coxae I rather longer than usual, all legs very short, and all but leg I stout, with few hairs, a few spine- like bristles on tarsi; epigynum of female more than twice as long as broad, narrowed behind; anus hardly its length in front of hind .margin; behind leg II the peritreme bends suddenly outward and then at once back and bends to leg III. Length .5 mm. From Juan Vinas, Costa Rica (Calvert), on the Harlequin beetle, Acrocimis longimanus. 686 PROCEEDINGS OF THE ACADEMY OF [DeC, Celaenopsis angustus n. sp. PI. XXX, fig. 20. Reddish-brown. Body fully twice as long as broad, middle sides nearly parallel, tapering and almost pointed behind, in front rather concavely narrowed to the rounded front; dorsum smooth, with a few short scattered bristles, these bristles not one-half as long as distance between them, a row of curved bristles over front margin; sternum about as long as broad behind, a bristle in each anterior corner, one each side, and a submedian pair behind; vulva as figured; hind coxae not their diameter apart; anus nearly three times its length in front of hind margin, a pair of bristles behind it toward tip; first legs slender, with many fine hairs especially at tip, other legs thicker, and with few bristles, hind legs reaching barely beyond abdomen. Length .6 mm. On the Scarabseid, Dynastes hercules, from Costa Rica (Calvert). Hypoaspis distans n. sp. PI. XIX, fig. 17. Yellowish. Body about twice as long as broad, broadest at middle, tapering each way, but most behind; dorsum with a number of short hairs set in hyaline dots, and on margin longer hairs, some of them very long, one each side behind is fully one-half the width of the body; sternal shield rather longer than broad; epistome very long and slender; legs rather long, second pair of male stoutest, all with bristles, some under leg II spine-like, a very long bristle on femur IV, much shorter one on femur III, in female there is also a very long one on femur II. Length 1 mm. On the Scarabseid, Dynastes hercules, from Costa Rica (Calvert). Explanation of Plates XXVIII-XXX. Plate XXVIII. — Fig. 1. — Singa dotana. Fig. 2. — Teminius conjunda, vulva. Fig. 3. — Zimiromus fragilis, spinnerets. Fig. 4. — Anyphcena pretiosa, vulva. Fig. 5. — Anyphaena furcalella, palpus. Fig. 6. — Stygnoleptes analis, leg IV. Fig. 7. — Theridion biolleyi, palpus. Fig. 8. — Chetnmis punctigera, vulva. Fig. 9. — Zimiromus fragilis, eyes. Fig. 10. — Anyphcena fiMTcaiella, vulva. Fig. 11. — Singa dotana, vulva. Fig. 12. — Zimiromus fragilis, vulva. Fig. 13. — Stygnoleptes analis, palpus. Fig. 14. — Pelayo insignis, vulva. Plate XXIX. — Fig. 15. — Uropoda bisetosa. Fig. 16. — Chelanops uniformis. Fig. 17. — Hypoaspis distaiis, and epistome. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 687 Fig. 18. — Chelanops uniformis. Fig. 19. — Uropoda clavisetosa, and hairs. Fig. 20. — Ccelenopsis angustus. Plate XXX. — Fig. 21. — Tromhidium furcipes, palpus, tarsus, and hairs on dorsum. Fig. 22. — Rhyncholophus stolli, palpus. Fig. 23. — Edricus tricuspis. Fig. 24. — Rhyncholophus stolli. Fig. 25. — Rhtjncholophus stolli, legs I and IV. 688 PROCEEDINGS OF THE ACADEMY OF [DeC, THE ANATOMY OF TWO BRAZILIAN LAND SHELLS, ANOSTOMA DEPRESSITM AND TOMIGERUS CLAUSUS. BY HAROLD HEATH. Among the many strange species of Brazilian land shells, those belonging to the genus Anostoma and Tomigerus present the most unusual characters. In the first named the last whorl of the shell is "straightened, turning toward the margin and upward" (Pilsbry^), so that the visceral mass is carried upside down. Pilsbry has sug- gested that, judging by the growth lines, the shell is carried at first with the equatorial plane nearly vertical, and that as the last whorl is being added the animal falls to the right, thus undergoing a twist- ing process which brings the spire of the shell into a reversed position. Unfortunately, no young, living individuals were secured by the Stanford Expedition, but in the shell (PI. XXXI, figs. 2, 4) of one imma- ture specimen the free borders are highly angular, and if held in an upright position, as Pilsbry suggests, would offer the least possible resistance in moving about through the grassy regions where these snails abound. The specimens of Anostoma on which this paper is based were found in the low hilly country in the neighborhood of Baixa Verde, a small settlement between 40 and 50 kilometers to the northwest of Natal. A fire had swept the region in comparatively recent times, and fragments of shells were everywhere abundant in the scrubby under- brush of the rocky hills. Extended search brought to light a single living individual in a profound state of sestivation, Avhich a prolonged stay in a moist chamber failed to terminate. In addition, five dead shells were discovered in a heap of stones, and were measured and described in the field. According to my notes made at the time, they vary in greatest diameter from 33 to 37 mm. ; in lesser diameter from 24.5 to 28.5 mm.; and in altitude from 16 to 17.5 mm. Also in regard to the number and position of the apertural teeth or lamella? there is considerable variation. In two specimens there are seven, two of them being parietal ; in another there are likewise two parietal folds, but the columellar lamella is absent; in the remaining two there are three parietal folds, the middle one curving behind the 1 Manual of Conchology, Vol. XIV. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 689 angle lamella as in A. ododentatum , while of the lip teeth the colu- mellar fold is lacking entirely in one specimen, and is almost com- pletely obsolete in the other. Where the color persisted, the peristome was pinkish-brown or flesh tinted and characteristic of the species. The immature shell measures 21 by 18 mm. in width, with an altitude of 10.5 mm.; the axis is hollow and the mouth possesses no lamellae. After the living specimen had been decalcified and sketched (PI. XXXI, fig. 3), it was stained and sectioned, all the study of the various systems being made from reconstructions. The head region was highly contracted, and was not examined to any considerable extent. The unusual length of the mantle cavity, extending from the peri- cardium to the external pore, is reflected in the great length of the mantle arteries and veins, as well as that of the ureter and portions of the reproductive system. Otherwise there are no especially noteworthy features beyond what are indicated in the figures. The kidney, placed between the pericardial and body walls on the anterior face of the last fold, presents the usual sac-like appearance. Evidently the reno-pericardial opening is minute, if it exists at all, for a careful study of sections failed to disclose its whereabouts. The ureter, likewise, is difficult to trace throughout a portion of its course. Its external opening is immediately behind that of the alimentary canal, and from this point is readily followed to the region of the pericardium, where it decreases in caliber and passes into a network of blood vessels. Furthermore, the present specimen was slightly damaged in the region of the columellar muscle, thus adding to the difficulty of tracing the connections. It appears that the kidney is in contact, along its inner face, with a slender sack or tube with which the ureter communicates. The digestive system (PI. XXXI, fig. 6) requires no especial descrip- tion. A highly intelligent native lad of Baixa Verde is responsible for the statement that Anostoma lives solely on vegetable matter; at all events, several specimens, that he kept for several months, thrived on garden vegetables and moss. He had made no observa- tions on the position of the body in young individuals. The description of the reproductive system of A. ringens, as described by Fischer ,2 applies in all essential details to A. depressum^ with the exception of a penis retractor muscle attached to the vas deferens. In A. depressum the external reproductive pore, located ^Joiir. de Conchyl, 1869, p. 261. 690 PROCEEDINGS OF THE ACADEMY OF [DeC, on the right side of the head, leads into a small atrium with which the penis, hermaphroditic duct, and seminal receptacle attach. The first named is a heavy, muscular organ, accompanied by the usual slender vas deferens, their union being effected at some distance from the distal end of the penis, which thus forms a flagellum (PI. XXXI, fig. 7, f). As the flagellum thus holds identically the same position as the so-called penis retractor in A. ringeris, I am strongl}^ inclined to the opinion that we are actually dealing with flagella in both instances. In the present specimen the penis and flagellum are both sharply defined and appear to be without muscular attach- ments, though bound to the body wall by delicate connective tissue strands. In the neighborhood of the outer opening, however, the penis sheath affords attachment for three or four slender muscle bands that I am inclined to regard as penis retractors. The hermaphroditic duct, a highly glandular duct of comparatively even diameter, traverses the greater portion of the first coil of the body to enter the accessory glands. All of these structures are in a quiescent condition, and in size and configuration probably fall far short of their fully developed state in the sexually mature condition. The same is likewise true of the gonad. While the duct leading to it from the accessory glands is clearly apparent throughout the first part of its course, it gradually approaches the vanishing point, and cannot with certainty be traced to a gonad, which is accordingly drawn in its hypothetical position. Two living specimens of Tomigerus clausus were found beneath stones in the vicinity of Ceara-Mirim, a town about midway between Baixa Verde and Natal. Both were in a state of aestivation, and failed to revive, though kept in a moist chamber for several days. It is evident from several features of the shell and internal organiza- tion that the shell in this genus is carried with its principal axis transverse to the longitudinal axis of the foot; that is, the spire is directed to the right. The flattened surface of the outer whorl thus rests upon the dorsal surface of the foot or upon the substratum when the animal is in a state of aestivation, a position which they had assumed in both instances. As each individual was in a highly contracted state, with foot and head drawn far within the shell, external features are difficult to determine. It appears certain, however, that the mantle, with more highly thickened margins and more glandular epithelium than in Anosto7na, extends throughout the first whorl of the shell to the region adjacent to the aperture. It thus terminates at the point 1913.] NATURAL SCIENCES OF PHILADELPHIA. 691 where the ureter (PI. XXXI, fig. 5, u) bends abruptly upon itself. The external openings of the ureter and intestine occupy the usual positions on the right side, and from this point pursue a course parallel to the external surface of the body in close contact with the mantle cavity. As noted previously^ the ureter bends sharply upon itself at the termination of the mantle cavity, and, dorsally placed with reference to this chamber, proceeds anteriorly to unite with the forward extremity of the kidney. This last-named body is a com- pact, sac-like body consisting, as usual, of highly folded glandular epithelium confined, in the posterior half of the organ, to the outer face. As may be seen in the diagram (PI. XXXI fig. 5), the peri- cardium (p) is in contact with this glandular section throughout its entire length, but is scarcely more than half as extensive. The reno-pericardial opening was not observed. It may be added that the kidney is placed dorsally with reference to the pericardium. The reproductive system, considering that the gonad is in a highly quiescent state, is comparatively large and more compact than in Anostoma. The gonad consists of several slender diverticula (probably three times as many as are indicated in PI. XXXI, fig. 1), located in the apical whorls of the visceral mass. These contain primitive sex cells undifferentiated into sperms and ova. The hermaphroditic duct extends ventrally, close to the columella, and shortly before entering the accessory glands attaches to a slender pear-shaped organ, possibly a seminal vesicle, consisting of upwards of ten small diverticula imbedded in a muscular sheath. These are empty and give no sign of glandular activity. The accessory glands are volummous, though inactive organs, whose general extent is indicated in PL XXXI, fig. 1, ag, though several lobes give them a much greater dorso-ventral thickness than can be shown in the figure. The duct leading from the accessory glands becomes con- siderably widened near its proximal extremity, and possibly functions as a shell gland. As in Anostoma, the duct from the seminal recep- tacle springs from this point, and, as a slender canal, proceeds to the spacious sack situated in close proximity to the accessory glands. The vas deferens, likewise, unites with the penis some distance from its distal extremity, thus forming a flagellum (PL XXXI, fig. 1). No penis retractor has been discovered in this region. On the other hand, several strands attaching to the penis sheath in the neighbor- hood of the outer opening may operate as retractors. The digestive system is sufficiently illustrated (PL XXXI, fig. 5) to require no further explanation beyond the statement that three distinct bile ducts open into the stomach. 692 PROCEEDINGS OF THE ACADEMY OF [DeC, Explanation of Plate XXXI. Fig. 1 .—Reproductive system of Tomigerus clausus, dorsal view, ag, accessory glands; f, flagellum; g, gonad; r, seminal receptacle; v, seminal vesicle. Fig. 2. — Shell of young Anostoma depressum. Fig. 3. — Heart and kidney (k) of A. depressum, viewed from underside of spire. Fig. 4. — Shell of young A. depressum. Fig. 5. — Dorsal view of digestive tract, kidney (k), and pericardium (p) of Tomigerus clausus. Contracted specimen. Fig. 6. — Digestive tract of A . depressum viewed from apex of spire. Fig. 7. — Reproductive system of A. depressum viewed from apex of shell, ag,. accessory glands; f, flagellum; g, gonad; r, seminal receptacle. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 693 The following Reports for 1913 were ordered to be printed: REPORT OF THE RECORDING SECRETARY. The past year of the Academy has been tranquil and prosperous. While nothing of unusual interest has transpired, the results of routine work, in the increase of the Museum and Library and the issue of the publications, are matters of congratulation. The difficulty of securing desirable attendance at the meetings, noticed in my last report, continues, the committee appointed to look after the interests involved having been active only during the latter part of the year. Better results may be secured for the coming sessions. Ten meetings were addressed by F. D. Weidman, Edw. H. Thompson, Johii M. Macfarlane, Philip P. Calvert, H. Newell Wardle, William E. Hughes, Henry Skinner, T. Chalkley Palmer, Charles S. Boyer, Hugo Bilgram, and W. H. van Sickle. Forty-four papers have been presented for publication as follows : Henry W. Fowler, 7; Joseph C. Thompson, 4; A. P. Brown and H. A. Pilsbry, 2; Amos P. Brown, 2; James A. G. Rehn, 2; J. A. G. Rehn and Morgan Hebard, 2; Nathan Banks, 2; Morgan Hebard, 1 Will F. Thompson, 1; R. A. Speath, 1; Francis W. Pennell, 1 T. D. A. Cockerell, 1; E. G. Vanatta, 1; S. Stillman Berry, 1 Frederick D. W>idman, 1; Edgar T. W^herry, 1; Witmer Stone, 1 Clarence B. Moore, 1; Dr. A. Hrdlicka, 1; Herbert Campion, 1 Philip P. Calvert, 1 ; Henry A. Pilsbry, 1 ; R. W. Shufeldt 1 ; Thomas Barbour, 1; William H. Dall, 1; Frederick Baker, 1; Annette Frances Braun, 1; N. E. Mclndoo, 1; Harold Heath, 1, and Henry Fox, 1. Thirty-three of these have been printed, two have been returned to the authors, and nine remain in the editor's hands awaiting publi- cation. The papers by Mr. Clarence B. Moore and Dr. Hrdlicka con- stitute the first part of the sixteenth volume of the Journal. It forms, as usual, a beautiful contribution to anthropological science. The expense of publication has been borne by Mr. Moore. The contribution from Miss Annette F. Braun begins the second part of the sixteenth volume of the Journal. It will be illustrated by text figures and by two fine plates printed in color and furnished by the author. 694 PROCEEDINGS OF THE ACADEMY OF [DeC.^ The parts of the Proceedings published have amounted to 670 pages and 25 plates. Mr. Moore's contribution to the Journal embraces 102 pages and two plates beautifully printed in color^ besides a number of fine halftone illustrations. Of the Transac- tions OF the American Entomological Society (Entomological Section of the Academy), 248 pages and 26 plates have been pub- lished, and of the Entomological News 432 pages and 14 plates have appeared. Two numbers of the Manual of Conchology, consisting of 112 pages and 27 plates, make the total output for the year 1,564 pages and 94 plates. A careful revision of the exchange list has been made by Mr. Fox^ Letters have been sent to a number of derelict societies asking for a supply of deficiencies and announcing a suspension of correspondence until their indebtedness be cancelled. This action has been produc- tive of some good results. Eight members and one correspondent have been elected. The deaths of sixteen members and six correspondents have been an- nounced. Resignations of membership have been accepted from Joshua L. Bailey, William S. Newcomet, and S. Harbert Hamilton. The Curator of the William S. Vaux Collections, the Custodian of the Isaac Lea Collections, and the Solicitor of the Academy in position last year were reappointed by the Council. The interest so loyally manifested during his life by the Rev. Leander T. Chamberlain in the condition and growth of the collection of Eocene fossils associated with the memory of his father-in-law, Isaac Lea, was further shown by a bequest of $5,000 for the care and increase of the collection. Dr. Chamberlain died May 16, 1913. A bequest of .$10,000 has been received from Miss Anna Blanchard, who died August 2, 1913. The Academy formally thanked Dr. Thomas Biddle for the valuable additions he has made to the mammalian collections, especially for the skeletons and mounted specimens of anthropoids. I regret to report that a bill which had passed the Senate and House of Representatives, appropriating $90,000 to tKe Academy, failed to receive the signature of the Governor and was therefore inoperative. Samuel G. Gordon has been appointed a Jessup Fund student. Miss Harriet Newell Wardle was reappointed on the female branch of the endowment. In the Monday evening course of lectures, extending from January 6 to May 5, three lectures on problems of bird life were delivered 1913.J NATURAL SCIENCES OF PHILADELPHIA. 695 by Dr. Witmer Stone ; one on milk-born epidemics of communicable diseases by Dr. B. F. Royer; one on a sanitary survey of the Alle- gheny water shed by Mr. T. Herbert Snow; three on anthropology and ethnology by Dr. Spencer Trotter; three on entomology' by Dr. Henry Skinner; three on studies in local plant life by Mr. Stewardson Brown, and three on the natural history of the Hawaiian Islands by Dr. Henry A. Pilsbry. The afternoon course for students of the Girls' High School began October 8, and was largely attended. Two lectures each were delivered by the following: Dr. Henry Skinner on insects; Dr. Henry A. Pilsbry on crustaceans and mollusks; Dr. J. Percy Moore on reptiles and mammals; Dr. Witmer Stone on birds, and INIr. Stewardson Brown on plants. There has been a gratifying increase in attendance on all the courses. Edward J. Nolan, Recording Secretary. REPORT OF THE CORRESPONDING SECRETARY. The toll of death from among correspondents of -the Academy for the year just closed was unusually heavy. The reported deceased are Professor Robert Collett, Lord Avebury, Dr. Philip Lutley Sclater, Professor Igino Cocchi, Dr. Joseph K. Corson, Professor Arnim Baltzer, and Alfred Russel Wallace. Colonel Wm. C. Gorgas, U. S. A., was elected a correspondent. Invitations were received to send delegates or to participate otherwise in the following-named projects of scientific interest: The celebration of the fiftieth anniversary of the foundation of the Dumfriesiiire and Galloway Natural History and Anti- quarian Society; the movement for the establishment of a memorial to Giovanni Schiaparelli ; the Twelfth International Geological Congress, at which the Academy was represented by Professor Edgar T. Wherry, Professor Florence Bascom, and Dr. R. A. F. Penrose; the bicentenary jubilee of the Imperial Botanical Gardens of St. Petersburg; the Ninth International Congress of Zoology, to which the Prince of Monaco, Professor Ulric Dahlgren, and Dr. Edward J. Nolan were appointed delegates; the fiftj'-year birthday celebration of the Natural Science Society of Braunschweig; the one hundred and twenty-fifth anniversary of the granting of the first charter to the University of Pittsburgh ; the fiftieth anniversary 696 PROCEEDINGS OF THE ACADEMY OF [DeC, jubilee of the Entomological Society of Ontario, which Dr. C. G. Hewitt attended as the Academy's delegate; the Ninth International Congress on Hydrology, Climatology and Geology-; the inauguration exercises of the new President of Ursinus College, and the fiftieth anniversary of the founding of the Imperial Society of the Friends of Natural History, Anthropology and Ethnography of Moscow. Letters of congratulation or more formal addresses were forwarded to the executive officers of most of the events named, special attention being given to those at which the Academy found it impossible to be represented. Several communications from individuals or organizations, thank- ing the Academy for courtesies extended, were received. Many letters requesting information were answered or suitably referred, and the routine correspondence was conducted as usual as shown in the summary that follows: Communications received: Acknowledging receipt of the Academy's publications 455 Transmitting publications to the Academy... 54 Requesting exchanges or the supply of deficiencies 3 Invitations to learned gatherings, celebrations, etc 14 Notices of deaths of scientific men ._ _. 5 Circulars concerning the administration of scientific and educational institutions, etc 20 Photographs and biographies of correspondents ■ 2 Letters from correspondents 10 Miscellaneous letters 135 Total received 698 Communications forwarded: Acknowledging gifts to the Library 1,094 Requesting the supply of deficiencies 112 Acknowledging gifts to the Museum 75 Acknowledging photographs and biographies 1 Letters of sympathy or congratulation, addresses, etc 16 Diplomas and notices of election of correspondents and delegates' creden- tials 9 Miscellaneous letters 157 Annual reports sent to correspondents 248 Total forwarded 1,712 Respectfully submitted, J. Percy Moore, Corresponding Secretary. REPORT OF THE LIBRARIAN. I am happy to report a gratifying growth of the library during the past year, the accessions amounting to a total of 9,735, an increase 1913.] NATURAL SCIENCES OF PHILADELPHIA. 697 of nearly 1,000 more than the additions of the preceding year. The sources of accession were as follows: Exchanges I. V. Williamson Fund General Appropriation United States Department of Agriculture Authors James Aitken Meigs Fund Editors United States Bureau of Educa- tion Dr. W. D. Bayley Geological Survey of Kentucky.. Thomas B. Wilson Fund Government of India Imperial Department of Agri- culture, British West Indies.. New York Agricultural Experi- ment Station United States Department of the Interior Imperial Geological Survey of Japan University of Nebraska Agri- cultural Experiment Station... Government of Costa Rica Dr. W. U.Abbott Pan-American Union Ministerio de la Agi-icultura, Argentine Republic Botanical Section of the Academy Trustees of the British Museum.. Tennessee State Board of Ento- mology Dr. C. W. Richmond Estacion Seismologica de Cartuj a Dr. E. J. Nolan United States War Department.. United States Department of Commerce and Labor WilUam J. Fox American Iron and Steel Insti- tute Dr. H. A. Pilsbry Colorado Agricultural College Wyoming State Geologist Dr. Henry Skinner Albert I, Prince de Monaco University of Wyoming Pennsylvania State Library Comrnission of Conservation of Canada Massachusetts Agricultm-al Ex- periment Station PubUcation Committee of the Academy Maryland Geological Survey 46 4,288 1,954 1,330 1,188 192 131 63 52 50 42 40 28 25 Ceylon Marine Biological Lab- oratory State Entomologist of lUinois... New Mexico College of Agri- . culture Pennsylvania Department of Agriculture Pennsylvania Chestnut Tree Blight Commission Wisconsin Geological and Natural History Survey Victoria Department of Mines.. Rockefeller Sanitary Institute.... Wyoming State Board of Immi- gration Illinois State Geological Survey Geological Survey of Alabama.. Illinois Bureau of Labor Statis- tics Geological Survey of New Jersey Ciierpo de Ingenieros de Minas del Peru Commission de la Belgica Washington Geological Survey.. Estate of Caleb J. Milne C. H. Fernald Florida State Geological Survey Iowa Geological Survey University of Pittsburgh Board of Park Commissioners, San Francisco Missouri Bureau of Geology and Mines John Laurence Government of Formosa Mrs. W. A. Lemly American Federation of Hygiene Danish Government Mrs. John Marcou French Government National Electric Lamp Asso- ciation Herbert A. Gill University College, London New Orleans Progressive Union Geological Survey of Georgia Geological Survey of Ohio Minnesota Historical Society Miss A. L. Fries Delaware Valley Ornithological Club ._ Ventura County Horticultural Society Illinois State Museum Louisiana State Museum F. E. Fischer, Leipzig United States Brewers' Asso- ciation 698 PROCEEDINGS OF THE ACADEMY OF [DeC, Of these 7,957 were pamphlets and parts of periodicals; 969 volumes, and 809 maps. They were distributed to the several departments of the library as follows : Journals 6,193 Mineralogy 33 Agriculture 1,297 Encyclopedias 27 Geography 700 Mammalogy 17 Geology 480 Physical Science 11 Botany 240 Bibliography ;.... 10 Entomology 154 Herpetology 9 General Natural History 134 Ichthyology 4 Voyages and Travels 118 Medicine 3 Anatomy and Physiology 94 Mathematics 2 Anthropology 65 Philology 2 Helminthology 39 Chemistry 1 Ornithology 37 Miscellaneous 47 Conchology 36 Among the serials not before in the collection and secured by subscription, purchase, or exchange may be named: American Ethnological Society Publications. Apuntes de Historia Natural. Buenos Aires. Archives Botaniques du Nord de la France. Lille. Comptes Rendus, Conferences Internationale de Genetique. Eugenics Record Office, Bulletin and Memoirs. Fortschritte der Mineralogie, etc. Jena. Istituto Geologico della R. Universita di Padova, Memorie. Mededeelingen, Rijksopsporing van Delfstoffen. s'Gravenhage, Naturwissenschaften (Die). Berlin. Norsk Geologisk Tidsskrift. Palaeobotanische Zeitschrift. Berlin. Palaeontologische Zeitschrift. Berlin. Physiological Researches. Baltimore. Studies from Museum of Zoology, University College, Dundee. Termeszet. Budapest. Zeitschrift f. Pflanzenzuchtung. Berlin. Journal of the Polynesian Society, 4 vols. Memoires d'Histoire Naturelle (Societe Eduenne). Autun. Mitteilungen der Grossh. Badischen Geologischen Landesanstalt. Heidelbei-g. Zeitschrift f. Geognosie. Weimar. Academia Romana, Bulletin de la Section Scientifique. Academie Malgache, Bulletin. Tananarive. American Museum of Natural History, Monographs. New York. Bulletin of the University of Colorado. Boulder. Dansk Geologisk Forening, Meddelelser. Copenhagen. Department of Agriculture. Ceylon. Journal of the College of Agriculture, Tohoku Imperial University. Minnesota School of Mines Experiment Station. Bulletin. Mittheilungen der k. sachsischen forstliche Versuchsanstalt zu Tharandt. Resources of Tennessee. Societe Historique et Scientifique des Deux-Sevres. Niort. Societe Ouralienne des Amis des Sciences Naturelles, etc. Ekaterinburg. Tennessee State Geological Survey, Bulletin. Verein f. Naturwissenschaften an der Unterweser. Separate Schriften. Geeste- munde. Washington University Studies. St. Louis. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 699 As of special importance may be mentioned: Freyer. Beitraege z. Geschichte europ. Schmetterlinge. 3 vols. Freyer. Neuere Beitraege z. Schmetterlingskunde. 7 vols. Millais. British Diving Ducks. Coal Resources of the World, 2 vols., text and folio Atlas. A specially illustrated copy of the Centenary volume of the Journal, bound in two volumes, has been presented by the Record- ing Secretary. They contain samples of all the documents and cards used in connection with the centenary celebration, photographs of, and autograph letters from everyone taking part in the meetings or contributing communications to the volume, a photograph of the dining hall with seated guests, lists of subscribers to the general expense fund and to the dinner fund, proof and plates of an omitted paper, statistics of distribution, text of the secretarj^'s unpublished "Reminiscences," and a copy of the printers' bill. These volumes cannot fail to be of increasing interest as the years go on. They have been presented on condition that they be kept under lock and key and inspected only in the presence of an officer of the Academy or an attache of the library. Five hundred and eight volumes have been bound. The stack has been thoroughly cleaned and the windows so pro- tected as to minimize the access of dust. We are indebted to Miss A. L. Fries for a collection of one hundred and thirty-one letters addressed by American and foreign naturalists to the Rev. David Lewis De Schweinitz with his certificates of membership in the Academy and the Linnean Society of Paris. The letters mostly relate to the work of Dr. De Schweinitz on the fungi. In compliance with the law, 199 duplicate pamphlets and 58 maps have been returned to the U. S. Department of Agriculture. A proposition to alter the by-laws so as to permit of the loaning of books, which had been long under consideration by the Council, was reported on negatively. It gives me pleasure to again acknowledge my indebtedness to my assistants, William J. Fox and Furman Shepherd Wilde, for the conscientious and intelligent discharge of their duties. Edward J. Nolan, Libranan. REPORT OF THE CURATORS. During the past year the work of the museum staff has been mainly devoted to completing and improving the arrangement of 700 PROCEEDINGS OF THE ACADEMY OF [DeC, the study collections, which, as stated in last year's report, had nearly all been moved into new or renovated quarters, upon the completion of the building operations in 1912. A large amount of work along these lines was necessary, and the appended reports of the special departments will show in detail the results that have been attained. In the departments of Entomology, Ornithology, and Botany, which underwent the greatest changes, immense improvements have been made in the arrangement of the collections, rendering them much more accessible and providing for the accommodation of additional accessions. Furthermore, these arrangements and the acquirement of addi- tional storage cases will permit of the withdrawing of duplicate material now on exhibition, especially in the departments of Con- chology and Ornithology, and facilitate the display of the remainder to much better advantage. In this connection the preparation of descriptive labels is contemplated, while groups illustrative of the life history of the species will be substituted for single mounts. Comparatively little change has been possible in the arrangement of exhibits this year owing to the crowded condition of many of the cases and the lack of new cases for the north wing. The former condition will be remedied during the coming year, as already explained, while it is hoped that enough new cases may be obtained to permit of the reopening of the north wing. The greater part of the collection of vertebrate fossils has been thoroughly cleansed, removed from the old table cases, and arranged systematically in trays which have been temporarily placed under the mahogany cases containing the exhibition series of fossil mol- lusca. Here they are readily accessible for study until permanent cases can be provided. The removal of the Wm. S. Vaux collection of minerals to the old library hall has been completed and Mr. F. J. Keeley has rearranged the specimens; while under his direction Mr. S. G. Gordon, a student on the Jessup Fund, has continued the cataloguing of the collection which was begun some years ago. The skeleton of the large Sperm Whale, secured in 1911, has been placed temporarily in the centre of this hall, where it has attracted much attention. This skeleton together with one of the Mesoplodon makes the Academy's series of the larger Cetaceans almost complete as far as genera are concerned. Mr. Clarence B. Moore has continued his investigations of the Indian mounds of the southern United States and has added a 1913.] NATURAL SCIENCES OF PHILADELPHIA. 701 number of valuable specimens to his collection. The general archaeo- logical collection has benefited as heretofore from the attention of Miss H. N. Warden. Mr. Henry W. Fowler has, as usual, cared for the ichthj^ological collection and has also incorporated all of the additions to the col- lection of reptiles and amphibians and examined and rearranged the entire series of alcoholic crustaceans. Dr. J. P. Moore has cared for the collections of worms as in previous years. Work in other departments is described in the appended special reports. In addition to the work of the museum staff, the Curators are indebted to Mr, F. J. Keeley for the care of the Wm. S. Vaux col- lection of minerals ; to Mr. Morgan Hebard for furnishing an assistant in the entomological department to mount specimens of Orthoptera ; to Dr. Amos P. Brown for the identification of many specimens of invertebrate fossils, and to ]Messrs. S. S. VanPelt and Bayard Long for the care of the local herbarium. Several notable expeditions have been undertaken liy members of the museum staff. Dr. H. A. Pilsbry spent the first three months of the year in the Hawaiian Islands making studies and collections for a monograph of Hawaiian tree snails. Details of his work will be found in the special report appended hereto. Mr. J. A. G. Rehn spent the month of July with Mr. Morgan Hebard investigating the Orthoptera of the Southern States from Virginia to Georgia. They made a valuable joint collection. Mr. Stewardson Brown again visited Bermuda in company with Dr. N. L. Britton, in September, and continued the investigation of the flora of the island. Many short trips were also undertaken which have added largely to the local collections of fishes, reptiles, insects, moUusks, plants, etc. Fifty-two storage cases and two-hundred and two insect boxes have been purchased during the year. Many valuable additions have been received bj' gift, purchase, and exchange, as set forth in the accompanying list of accessions. The Delaware Valley Ornithological Club, Philadelphia Botanical Club, and Pennsylvania Audubon Society have held their meetings regularly at the Academy during the year and the American Asso- ciation of Museums convened here for their annual meeting in April. The attendance in the museum is constantly increasing, especially 702 PROCEEDINGS OF THE ACADEMY OF [DeC, school classes accompanied by teachers. Out-of-town schools have visited the museum in a body, while Philadelphia schools, notably the High School for Girls, have sent the scholars in sections for the study of special departments in regular sequence. The classes from the School of Industrial Art have also attended regularly for the purpose of sketching the osteological and other exhibits. Extensive use has been made of the study collections in all depart- ments by visiting specialists, while specimens have been loaned to Robert Ridgway, W. W. Cooke, W. G. Mazyck, M. L. Fernald, H. W. Henshaw, J. H. Ashworth, R. H. Howe, O. P. Hay, R. South- ern, E. W. Nelson, E. S. Shumann, F. M. Chapman, M. J. Rathbun, and H. C. Oberholser. A series of mounted mammals of Pennsylvania was contrib- uted to the exhibition of the State Forestry Association. Samuel G. Dixon, Executive Curator. Report of the Department of Mollusca. Accessions to the collection of mollusks have been received from 66 persons and institutions during the year. Valuable material has been collected by several expeditions made by members or friends of the Academy. Mr. J. H. Ferriss spent four months in Arizona, exploring the Santa Catalina and White Mountains, finding an abundant fauna of land mollusks at elevations up to 13,000 feet. As the localities had not been visited before by a collector of shells and the species are largely local, he secured a large number of species new- to science and valuable zoogeographic data. The collections made have been generously shared with the Academy. Doctor Amos P. Brown gave the Academy a collection of the mollusca of the island of Antigua, B. W. I., taken by him during the summer. It is probably nearly or quite complete for land forms and includes also a considerable number of marine shells. The Special Curator spent a few days over three months in visiting the Hawaiian Islands, chiefly for the purpose of studying land snails of the family Achatinellidm, both in the field and in Hawaiian col- lections. Over 1,000 lots of shells in trays and bottles have been labelled and catalogued, and about an equal number remain to be worked over. Special attention was given to the deposits of fossil land shells, and about 20,000 specimens of fossils were collected. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 703 So far as studied, these collections show that the fossil faunas of the several islands are much more closel}" related to one another than are the living faunas. The theory that the islands are portions of a former large land-area, now dismembered by subsidence, is therefore, emphatically supported by the new data obtained. Collections were made on Oahu, Molokai, Hawaii, and the uninhabited island Kahoolawe. The success of the expedition was largely due to the generous hospitality of the Bishop Pauahi Museum, Doctor C. Montague Cooke, Mr. George Cooke, Mr. Irwin Spalding, Mr. D. Thaanum, and others, who in many ways assisted the investigation. The time of the Special Curator since his return has been largely occupied with work on material brought back and with the current work of the department. Papers have been published on Lower Californian Helices and various other topics and Mr. Vanatta pub- lished upon new marine mollusks. With the assistance of Dr. A. P. Brown, who devoted considerable time to the work, progress has been made in the arrangement of the invertebrate fossils. Dr. Brown has presented to the Academy a collection of Oligocene fossils which he made in Antigua and de- scribed in the Proceedings of the Academy. Miss Winchester, artist of the department, has continued her work throughout the year. Mr. Vanatta was assigned to work in the Entomological Department on April 1st, but since December 1st has returned to the Department of MoUusca. The Curator has also had the assistance of Miss Ziegler, who has spent five months in assorting minute shells from the Hawaiian Islands. H. A. PiLSBRY, Special Curator. Report of Curator of William S. Vaux Collections. During the past year, the collection of minerals was removed to its new quarters in what was formerly the Library Hall, and during the past few months, with the assistance of Mr. S. G. Gordon, rapid progress has been made on the cataloguing, and numbering of the mineral specimens. Twenty-two specimens have been added to the collection during the year, in the selection of which, the established precedent of securing quality rather than quantity has been adhered to. The most important accessions include a suite of aerolites from Hol- brook, Ariz.; tantalum, Altai Mountains; andorite, Oruro; enargite. 704 PROCEEDINGS OF THE ACADEMY OF [DeC, Morococha; monticellite, Magnet Cove; natrochalcite, Chuoui- camata; diamond in matrix, S. Africa; ehiastolite, California; gageite, Franklin, N. J.; delafossite and mottramite, Bisbee, Ariz. Respectfully submitted, F. J. Keeley, Curator William S. Vaux Collection. REPORTS OF SECTIONS. Biological and Microscopical Section. The Section held nine regular meetings during the year with the usual attendance. Various communications were made by Messrs. Morris, Palmer, Keeley, Stewart, Van Sickel, Schuino, Bilgram, and Boyer. At the annual meeting with the Academy, the program included addresses by Mr. T. C. Palmer, on the collecting and preparing of Diatoms; by Mr. Charles S. Boyer, on Philadelphia Diatoms; by Mr, W. H. Van Sickel, on the methods of labelling shdes; and by Mr. Hugo Bilgram, on rock inclusions. The following officers were elected for the ensuing year: Director Dr. J. Cheston Morris. Vice-Director T. Chalkley Palmer. Recorder .*. Charles S. Boyer. Corresponding Secretary Silas L. Schumo. Treasurer Dr. Thomas S. Stewart. Curator ., F. J. Keeley. Charles S. Boyer, Recorder. Report of the Entomological Section. Two hundred and fourteen glass-covered boxes have been pur- chased to accommodate the growth of the collections. Nine thousand one hundred and eighty-seven specimens have been added by gift, purchase, and exchange, and most of them have been mounted and incorporated. Thirty-four drawers of Lepidoptera have been transferred to make room for other insects and one cabinet was emptied and sold. The families Geometridse and Sphingidse, the genera Ornithoptera and Papilio, and the life-histories have been rearranged. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 705 In the Coleoptera the exotic species from CicindeUdse to Scara- beidse have been transferred to the Ridings cabinets. All the named exotic species that were not incorporated have been added to the exotic collection. The Zimmerman collection, the Poey, Cuban collection and the Salle collection of Mexican species have all been labelled. In the North American series the rearrangement of the Carabidse and the Gyrinidse have been completed and the Hydrophilidie in part. The Horn types in Carabidse and Elateridse have been labelled; also the Curculionidse and some of the smaller families. The following families have also been rearranged : Rhinomaceridae^ Rhynchitidse, Attelabidae, Brysopidse, Otiorhynchidse, Curculionid8&, Brenthidse, Calandridae, Scolytidae, Anthribidse, Haliplidse, and Dytiscidse. More than a hundred species undetermined in the Horn collection have been named by specialists and incorporated. In the order Hymenoptera the family Chalcididae has been re- arranged. In the Diptera the Sapromyzidae and Agromyzidce have been determined and rearranged, and the Stratiomyidae, Culicidae, and SyriphidsB have been put in better order. The Odonata have all been transferred to glass-topped drawers with the exception of some specimens on which studies are being made. The work on the order Orthoptera has been as follows: The North American and exotic collections of Dermaptera and Blattidee have been rearranged in the large glass-top boxes in which the whole collection of these orders will eventually be displayed. Some thousands of specimens from numerous exotic localities have been relaxed and mounted and in part permanently labelled, pre- paratory to study. The series of the genera Dichopetala, Insara, and Arethcea have been critically studied by Messrs. Rehn and Hebard, the latter spending a number of months monographically studying the North and Central American crickets of the genus Nemobius. To complete these studies, all the types in America and certain of those in European collections were examined by one or other of the authors. A faunistic paper on the Orthoptera of the Florida Keys and extreme Florida was prepared by the same workers, based wholly on material collected by the Hebard- Academy Expedition of 1912. Mr. Relm has studied two extensive 706 PROCEEDINGS OF THE ACADEMY OF [DeC, collections of Argentine Orthoptera, the first set of each becoming the property of the Academy, while work by him on a large series of Brazilian material is now under way. During the summer of 1912 Messrs. Rehn and Hebard spent four weeks in the field in the Piedmont regions of the Southeastern States collecting Orthoptera, while in October and November Mr. Hebard made collections in Jamaica and Panama which will, when studied, add greatly to the value of the series of Orthoptera. Mr. Hebard during the last year deposited the last section of his collection in the Academy. Numerous specimens have been received from him as distributions of the Bruner Collection material, these often of great value on account of their determination by their former owner. Mr. Hebard has continued to employ help in preparing the series of Dermaptera and Orthoptera secured by field work in which he is interested, thus affording material assistance to the department. The Academy has acquired by purchase a valuable series of Orthoptera from Trinidad, British Guiana, Peru, Ecuador, and Colombia. The Orthoptera collections of German Central African Expedition of 1910-1911, have been received for study, as well as a number of other series from different sources. There is now assembled in one room in the Academy the largest series of Orthoptera and Dermaptera in America and one of the largest in the world, the number of specimens exceeding one hundred and fifty thousand, almost entirely an accumulation of the last fifteen years. The Conservator spent several weeks during the summer col- lecting in the White Mountains of New Hampshire and succeeded in securing a number of rare species for the collection. The usual meetings of the Section have been held, with an average attendance of eight persons. Four Associates have been elected. At the annual meeting, held December 8, the following persons were elected to serve as officers for the ensuing year. Director Philip Laurent. Vice-Director Henry W. Wenzel. Treasurer Ezra T. Cresson. Conservator Henry Skinner. Secretary James A. G. Rehn. Recorder Henry Skinner. Publication Committee E.T. Cresson and E.T. Cresson, Jr. Henry Skinner, Recorder. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 707 Report of the Botanical Section. During the year, following the policy of replacement of the old wooden cases by metal ones, further changes have been made in the arrangement of the herbarium. The Academy has furnished the herbarium during the year twenty additional tins, part of which have been installed in the place of the wooden cases formerly occupying the east wall of the north room, the balance having been used to relieve the crowding in the central room. The wooden cases thus removed have been placed on the east wall of the local room, relieving temporarily the over- crowding of this rapidly growing section. The cases taken from the local room have been re-erected in the central gallery room and are being used at present for storage. More than 10,000 specimens have been added to the general herbarium during the year, the largest accessions being the herbarium of Dr. C. D. Fretz, of Sellersville, Pa., presented to the Academy. It numbers approximately 5,000 sheets, about one-third of which have been assigned to the local herbarium. A large exchange of several thousand plants has been secured from the Trenton Museum, and smaller collections from the New York Botanical Garden, Gray Herbarium, and University of Pennsylvania, with donations from Charles S. WilUam5on and others. A majority of these plants have been mounted and installed in the collections. During September the Conservator spent three weeks in Bermuda, continuing his studies there in company with Dr. and Mrs. N. L. Britton, of the New York Botanical Garden. On this occasion particular attention was paid to the plants in several of the old gar- dens in the vicinity of Hamilton and St. George's, much assistance being rendered by Mr. E. J. Wortley, of the Agricultural Gardens. Many specimens of interesting tropical plants were collected. They wall add greatly to the value of our study material. During the year the Philadelphia Botanical Club has held its meetings regularly in the herbarium rooms, and its members as well as many visiting botanists have made much use of the collections. Mr. S. S. Van Pelt has continued his valued services in the care of the local collection, and the Section is indebted to Mr. Bayard Long for important assistance in the same field. At the annual meeting held November 20, the following officers were elected. 708 PROCEEDINGS OF THE ACADEMY OF [DeC,^ Director Benjamin H. Smith. Vice-Director Joseph Crawford. Recorder Charles S. Williamson. Treasurer and Conservator Stewardson Brown. Respectfully submitted Stewardson Brown, Conservator. MiNERALOGICAL AND GEOLOGICAL SECTION. The Section has held four meetings this year, with an average attendance of twelve. Communications were made by Dr. E. T. Wherry, on crystal analysis; by Dr. Thomas C. Brown, on the geology of the Catskill Aqueduct; by Dr. T. C. Brown, on a canoe trip in Northern Quebec; and by Dr. Florence Bascom, on an excursion of the International Geological Congress north of Lake Ontario. There were alsO' shorter communications and various discussions. In addition, the Section had one meeting in conjunction with the Academy, and Dr. E. T. Wherry then reported on the International Geological Congress held at Toronto last August. The Section had six field excursions, with an average attendance of .17. Visits were made to: (1) Crystalline rocks near Glen Mills and Lenni, on Chester Creek and at Black Horse, Delaware County; (2) Crystalline rocks and their minerals near the Falls of French Creek, Chester County; (3) Crystalline rocks near Holmesburg and Rolandsville, Philadelphia; (4) New Red Perkasie shales and Pottstown shales and trap, near Schwenksville, Montgomery County; (5) Graphite deposits near Byers, Chester County; (6) Crystalline rocks and Cambrian, near Pennypack Creek, Montgomery County. One new member and tAvo associate members were elected. The following officers of the Section have been elected for the year 1914: Director Benjamin Smith Lyman. Vice-Director Frank J. Keeley. Recorder and Secretary Silas L. Schumo. Treasurer William B. Davis. Conservator George Vaux, Jr. Respectfully submitted by order of the Section. Benjamin Smith Lyman, Director, 1913.] natural sciences of philadelphia. 709 Report of the Ornithological Section. More progress has been made in the arrangement of the study series of birds during the year just closed than has been possible for many years past. Mr. D. E. Culver, who has occupied a Jessup studentship during the year, has devoted nearly all of his time to the relaxing and renovation of the old unmounted specimens. Many hundreds of these birds have thus been converted into excellent skin specimens, while the cases have been thoroughlj^ cleansed as the work continued. All of the lower groups of birds, comprising those of large size, liave been worked over in this way, as well as the whole series of Picariae, most of the Clamatores, and one or two families of the Oscines, so that the work will be easily completed early in the coming year. The Conservator took up each family of the water birds as the relaxing was completed and arranged them systematically, reidentify- ing many specimens and checking them up in Sharpe's Hand List. He also interpolated in the collection some 5,000 specimens that have been acquired during past years but not systematically arranged for lack of cases, a need that was met this year by the addition of ten double-sized metal storage cases. Iron-pipe racks were also erected for holding the cases in place of the temporary wooden racks previously in use, while the fronts of all the cases have been painted cream color, which gives them a much neater appearance and adds materially to the light in the alcoves. The floor of the room has also been painted with cemitite, which has hardened the concrete and stopped the constant wearing away of the surface in the form of fine dust. The removal of certain old wooden cases will permit the arrange- ment of the local collection to much better advantage. A number of additions have been made during the year to the local .exhibition collection, and others are in the course of preparation. No rearrangement or further reduction of the general exhibition •collection has been possible, but with the acquisition of additional storage cases it is hoped in the coming year to unmount a number of duplicates and arrange the remaining specimens to much better advantage. There have been a number of very important accessions to the study collection during the year, notable among which were two hundred and thirty-seven West African birds, obtained from George 710 PROCEEDINGS OF THE ACADEMY OF [DeC.^ L. Bates, and four hundred and fifty specimens from Santa Marta^ Colombia. These added many species not heretofore represented. The Delaware Valley Ornithological Club and Pennsylvania Audubon Society have held their meetings regularly at the Academy and have done much to stimulate interest in the department, while numerous ornithologists from other institutions have made use of the collections. At the annual meeting of the Section, held December 4, 1913, the following officers were elected for the ensuing year: Director Spencer Trotter, M.D. Vice-Director George Spencer Morris. Recorder Stewardson Brown. Secretary William A. Shryock. Treasurer and Conservator Witmer Stone. WiTMER Stone, Conservator. The annual election of Officers, Councillors, and Members of the Committee on Accounts was held December 16, with the following result: President Samuel G. Dixon, M.D., LL.D. Vice-Presidents Edwin G. Conklin, Ph.D., Sc.D. John Cadwalader, A.M. Recording Secretary Edward J. Nolan, M.D. Corresponding Secretary J. Percy Moore, Ph.D. Treasurer George Vaux, Jr. Librarian Edward J. Nolan, M.D. Curators Samuel G. Dixon, M.D., LL.D., Henry A. Pilsbry, Sc.D., Witmer Stone, A.M., Sc.D., Henry Tucker, M.D. Councillors to serve three YEARS.Edwin S. Dixon, Henry Skinner, M.D., Robert G. LeConte, M.D., George Spencer Morris. Committee on Accounts Charles Morris, Samuel N. Rhoads, John G. Rothermel, Thomas S. Stewart, M.D., Walter Horstman. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 711 COUNCIL FOR 1914. Ex-Officio.—^Simuel G. Dixon, M.D., LL.D., Edwin G. Conklin, Ph.D., John Cadwalader, A.M., Edward J. Nolan, M.D., J. Percy Moore, Ph.D., George Vaux, Jr., Henry A. Pilsbry, Sc.D., Witmer Stone, A.M., Sc.D., Henry Tucker, M.D. To serve three years. — Edwin S. Dixon, Henry Skinner, M.D., Sc.D.,. Robert G. LeConte, M.D., George Spencer Morris. To serve two ymrs.— Philip P. Calvert, Ph.D., Thomas Biddle, M.D., Frank J. Keeley, Thomas G. Ashton, M.D. To serve one year. — Charles B. Penrose, M.D., LL.D., Ph.D., Charles Morris, Spencer Trotter, M.D., William E. Hughes, M.D. Councillor George Vaux, Jr. Curator of Mollusca Henry A. Pilsbry, Sc.D. Curator of William S. Vaux Col- lections ' Frank J. Keele3^ Custodian of Isaac Lea Collection Joseph Willcox. Assistant Librarian William J. Fox. Assistants to Curators Henry Skinner, M.D., Sc.D.^ Stewardson Brown, J. Percy Moore, Ph.D., Edward G. Vanatta, Henry W. Fowler, James A. G. Rehn, Ezra T. Cresson, Jr. Assistant in Library Furman Sheppard Wilde. Aid in Archeology Harriet Newell Wardle. Aid in Herbarium Ada Allen. Taxidermist David M. McCadden. Janitors .-. Charles Clappier, Daniel Heckler, James Tague, Jacob Aebley, Adam E. Heckler. STANDING COMMITTEES. Finance. — John Cadwalader, A.M., Edwin S. Dixon, Effingham B. Morris, William D. Winsor, and the Treasurer. Publications. — Henry Skinner, M.D., Sc.D., Witmer Stone, A.M., Henry A. Pilsbry, Sc.D., William S. Fox, Edward J. Nolan, M.D. 712 PROCEEDINGS OF THE ACADEMY OF [DeC, Library. — George Vaux, Jr., Henry Tucker, M.D., Frank J. Keeley, Thomas Biddle, M.D., Witmer Stone, Sc.D. Instruction and Lectures. — Henry A. Pilsbry, Sc.D., Charles Morris, Henry Tucker, M.D., George Spencer Morris, and Stewardson Brown. ELECTIONS IN 1913. Members. January 21. — Alfred M. Collins, E. Marshall Scull, J. Henry Scatter- good. October ;gi .— ClarenceE. McClung, Ph.D., Edw. B. Krumbhaar, M.D. November 18. — Herbert H. Gushing, M.D., Harley Stamp, M.D., J. Ewing Mears, M.D. Correspondent. MarcK'lS. — Col. W. C. Gorgas, of Panama. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 713 ADDITIONS TO THE MUSEUM, 1913. Ai.EXANDER Calder. A statuette of Alexander Wilson. Mammals. Dr. W. L. Abbott (through Miss Gertrude Abbott). Pair of Elephant tusks, East Africa. Charles W. Beck. Whale vertebrae, Beach Haven, N. J. Dr. Thomas Biddle. Mounted specimens of Siamang {Symphalangus syn- dactylus), two species of gibbons {Hylohales agilis and leuciscus), and Black Ape {Cynopithecus niger), Fairmoitnt Park Ac. uarium. Harbor Seal {Phoca viiuUna) . Prepared as skin and skull. Miss Laurie V. Groves. Skin and skull of Cow Moose {Alces americanus) . Tree trunk cut by Beavers. Dr. Morris Lewis. Mounted head of Moose {Alces americanus), Alaska. George W. MacWilliams. Persian Cat (Pure chinchilla "Normandy") Mounted. Richard Moessner and D. P. Currey. Ziphoid Whale {Mesoplodon sp.), Corson's Inlet, N. J. Edgar A. Smith. Phyllo.stominc bat {ArtiheuR sp.), Rio Madeira, Brazil. James Stanton. Skull of Bottle-nosed Dolphin {Tursiops truncaliis) , Two Mile Beach, N. J. Zoological Society of Philadelphia. Mounted: Jaguar (Felis onca); European Wild Cat {Felis catus). Prepared as skin and skeleton: Mountain Zebra {Equ us zebra); Cheetah {Cynailurus jubalus); Red River Hog {Potamochoe- Tus porcus). Prepared as skin and skull: Vervet Monkey {Lasiopyga pygery- thra); Silky Marmoset {Leontocebus rosalia); Golden Cat {Felis temmincki); Water Mongoose {Herpestes brachyurus); Japanese Bear {Ursus japonicus); California Sea Lion {Zalophus californianus) . Prepared as skin: Dasyure {Dasyurus sp.). Prepared as skeleton: Puma {Felis concolor); Clouded Leopard {Felis nebulosa); Persian Wild Ass {Eguus onager). Prepared as skull: Fishing Cat (Felis viverrina); Indian Antelope {Antilopc cervicapra) ; Azara's Aguti {Dasyprocta azarce). Purchased. Female Orang-utan {Pongo pygmoeus). Birds. Dr. W. L. Abbott (through Miss Gertrude Abbott). Collection of nests of Edible-nest Swiftlet. F. H. Kennard. Nine skins of the Heath Hen {Tympanuchus cupido), Martha's Vineyard, Mass. Delaware Valley Ornithological Club. Several nests and sets of eggs of Pennsylvania and New Jersey birds. •47 714 PROCEEDINGS OF THE ACADEMY OF [DeC, Abbott H. Thayer. Skin of Perisoreus infaustus. Nelson E. Varnum. Albino Kingbird {Tyrannus lyrannus), Atco, N. J- Mrs. Pendleton G. Watmough. Two Rhea eggs. Zoological Society of Philadelphia. Mounted: South African Ostrich {StTuthio camelus); Helmeted Cassowary (Casuarius uniappendiculahis occipi- talis). Prepared as skin and skeleton: Penguin {Spheniscus magellanicus) . Pre- pared as skin: Meyer's Parrot {Poeocephalus meyeri); Mississippi Kite (Ictinia mississippiensis) . Egg of Agapornis nigrigenis. Purchased. Four Kirtland's Warblers {Dendroica kirllandi), Michigan; 237 birds from Cameroons, West Africa; 470 birds from Santa Marta, Colombia. Reptiles and Amphibians. Richard M. Abbott. Four specimens of Spadefoot Toad {Scaphiopus hol- brookii), Trenton, N. J. August and Karl Behr. Jar of salamanders, Jennings, Md. Dr. Ward Brinton. Small collection of reptiles, Chitzen Itza, Yucatan. H. H. Burton. Collection of reptiles, Mattawa, Canada. Elwood R. Casey. Lizard {Liocephalus sp.?), Cuba. California Academy of Sciences. Several frogs and salamanders. Loo Choos, Japan and California. Delos E. Culver. Three lots of reptiles and amphibians, Pennsylvania. D. E. Culver and A. Lahey. Coluber constrictor and Thamnophis sirlalis, Delaware County, Pa. A. and O. Dorr. Water Snake (Matrix sipedon), Connelton, W. Va. Fairmount Park Aquarium. Loggerhead Turtle (Caretla caretta), New Jersey coast. J. H. Ferris. Snake. Lizard (Phrynosoma solare), Arizona. Dr. J. W. Renney. Two snakes, Iquitos, Peru. Dr. Henry Tucker. Diadophis punctatus, Clearwater, Fla. R. W. Wehrle. Collection of amphibians, Indiana, Pa. Dr. H. B. Wood. Ambystoma punctatum, Rhode Island. Zoological Society of Philadelphia. Galapagos tortoise (Testudo sp.?) and young Mud Turtle (Kinosternon flavescens). Fishes. Ralph Adams. Seahorse (Hippocampus) . American Museum of Natural History (in exchange). Small collection of fishes. A. R. Burton and H. W. Fowler. Four jars of fishes. Ocean City, Md. H. H. Burton. Four jars of fishes, Mattawa, Canada. H. H. Burton and H. W. Fowler. Two lots of fishes, Pennsylvania. Delos E. Culver. Three lots of fishes, Pennsylvania. L. M. DoRSEY, Jr. Panlodon bucholtzi. Miss Mary C. Du Boise. Dry Burr-fish (Diodon sp.?). H. W. Fowler. Several jars of fishes, Delaware. Edward Nolan Fox. Two small collections of fishes. Sea Isle City, N. J. William J. Fox. Trumpet fish (Fistularia) from Anglesea, N. J. W. T. Innes. Small bottle of fishes, Cuba. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 715 Leland Stanford Junior University. Collection of cotypes of fishes. Western North America. David McCadden. Two file fishes {Stephayiolepis hispidus), Ocean City, N. J. Hake (Phycis regius), Ocean City, N. J. H. L. Mather, Jr., and H. W. Fowler. Four jars of fresh-water fishes, York County, Pa. W. E. Meehan. Gar (Lepisosteus osseus), Maryland. Calico bass (Poinoxis), Philadelphia Aquarium. F. J. Myers. Spawning sculpins (Cottus gracilis), Bethlehem, Pa. F. J. Myers and H. W. Fowler. Five jars of fresh-water fishes, mountains of Pennsylvania, in Monroe County. R. F. Miller. Small fish, Philadelphia. Henry A. Pilsbry. Four fishes, Hawaiian Islands. Edgar A. Smith. Two jars of fishes, Rio Madeira, Brazil. F. L. Tappan. Small collection of fishes, Minnesota. Mrs. Pendleton G. Watmough. Lamprey. R. W. Wehrle. Three lots of fishes, including two larval lampreys, Indiana, Pa. H. T. Wolf. Seahorse {Hippocampus), Florida. Purchased. Collection of West African fresh-water fishes. Recent Mollusca. Jacob Aebly. Limax flaims from Philadelphia, Pa., and a pearl from an oyster. John A. Allen. Ten species of land and fresh-water shells from Oregon Connecticut, and Ohio. C. A. Baker. Praticolella from Zellwood, Fla. Dr. Fred Baker. Eighty-three trays of shells from California and Brazil. F. C. Baker. Pyramidula occidentalis Marts, from Idaho. F. H. Baker. Two marine shells from Australia. M. J. Becker. Cavolinia pacifica Dall from Pacific Grove, California. S. S. Berry. Two species of Succinea from Winnecook, Montana. Dr. a. p. Brown. Forty-four trays of land and fresh-water shells from Antigua. H. H. Burton. Lynmcea paluslris from Ontario, Canada. G. H. Clapp. Cotypes of Carychium nanum CI. from Alabama. A. M. Collins and E. M. Scull. Six trays of land and marine shells from East Africa. Richard A. Cooke. Four trays of land shells from Oahu. David L. Crawford. Thirty-three trays of land and fresh-water shells from Mexico. Delos E. Culver. Polygyra thyroides Say and Pyramidula alternata Say from Whites Island, Bucks County, Pa. L. E. Daniels. One hundred and thirty-three trays of land shells from Montana. Mrs. E. D. Douglas. Fifteen species of marine shells. H. Edson. Cotype of Sonorella argus Ed. from Inyo County, California. J. S. Emerson. Clausilia emersoni from Malta and Philonesia from Micro- J. H. Ferriss. Sixty-eight trays of land and fresh-water shells from Arizona and Texas. 716 PROCEEDINGS OF THE ACADEMY OF [DeC, W. R. Forrest. Twenty trays of land shells from Barbuda and Antigua (presented through Dr. A. P. Brown). H. W. Fowler. Nassa obsoleta Say from Cape Henlopen, Delaware. L. S. Frierson. Quadrula apiculata Say var. from San Jacinto River, Texas. Dr. J.'W. Harshberger. Five trays of land and marine shells from Florida. M. Heb.\rd and J. Rehn. Thirty-two trays of land shells from the Southern States. J. B. Henderson. Twenty-three trays of Urocoptis from Cuba. Junius Henderson. Ten trays of land and fresh-water shells from Colorado. A. L. Hettrich. Dentalimn vulgare Da C. A. A. HiNKLEY. One hundred and fifty-three trays of shells from Mexico and Guatemala. (Purchased.) F. J. Keeley. Polygyra tridentata Say from Graters Ford, Pa. Mrs. a. F. Kenyon. Thirty-one trays of marine shells from Victoria, Australia. Bayard Long. Twenty-seven trays of shells from the eastern United States. H. X. Lowe. Two species of Micrarionta from Lower California and Cerros • Island . J. G. Malone. Seven trays of marine shells from Oregon. T. H. May. Cyproea xanthodon from Bundaberg, Australia. William G. Mazyck. Five trays of land and fresh-water shells from Charles- ton, S. C. R. A. McConnell and D. L. Crawford. Eighteen trays of land and fresh- water shells from Guadalajara, Mexico. (Purchased.) Dr. H. E. and G. W. H. Meyer. Fovxr marine shells. Clarence B. Moore. Fourteen trays of shells from Arkansas, Louisiana, and Florida. C. R. Orcutt. Modiolus and Pomatiopsis from Manzanillo, Mexico. W. H. Over. Fifty-five trays of land and fresh-water shells from South Dakota. H. A. PiLSBRY. Five hundred and thirty-six trays of shells from the Hawaiian Islands; also seventeen trays of shells from California and Cuba. C. T. Ramsden. Twenty-two trays of land shells from Cuba. J. A. G. Rehn. Gaslrodonta intertexla Say. S. N. Rhoads. Two hundred and ten trays of marine shells from Panama. (Purchased.) S. Raymond Roberts. Thirty-four trays of marine shells from Australia and Japan. F. A. Sampson. Polygyra claiisa Say and one Campeloma from Dent County, Missouri. Prof. B. Shimek. Succinea loitteri Shimek from Coralville, Iowa. E. R. Sims. Oliva scripta Lam. from Santiago de Cuba. Irwin Spalding. One hundred and one trays of Hawaiian land shells. George C. Spence. Twelve species of land shells from England. J. B. Steere. Nenia steeriana Sykes from Plains of Cajamarco, Peru. WiTMER Stone. Polygyra fraterna Say and one Sphoerium from Lopez, Pa. D. Thaanum. Three hundred and forty-eight trays of Hawaiian shells. Hon. L. a. Thurston. Cotypes of Achatinella thurstoni from Oahu, H. I. Mrs, T. V. E. Titus. Striatura ferrea Mse. from nineteen miles south of St. Fabien, Canada. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 717 Dr. Henry Tucker. Limax maximns L. from Morton, Pa. University of Wisconsin. Three trays of Hawaiian land shells. E. G. Vanatta. Polygyra appressa Say from the. banks of the Chester River, Queen Anne County, Maryland. T. Van Hyning. Eleven trays of land and fresh-water shells from Georgia and Iowa. Gilbert Van Ingen. Helix hortensis Miill. from Conception Bay, New- foundland. Bryant Walker. Sixteen trays of land and fresh-water shells. W. F. Webb. Dryniceus inusitatus Fult., Chiriqui Lagoon, Panama. W. D. Wilder. Six trays of Hawaiian land shells. Helen Winchester. Polygyra albolnbris Say from Canadensis, Pa. Unknown. Twelve trays of Scaphopoda from Australia. Purchased. Two hundred and thirty-six lots of land and marine shells. Insects. J. Aebly. Five insects, Philadelphia. B. Albertson. Fly, Massachusetts. C. R. Alexander. Forty-one Tipulida;, United States. W. Beutenmuller. Seven insects, United States. Annette F. Braun. I'ourteen butterflies, United States. Brooklyn Institute of Arts and Sciences. Three Orthoptera. Stewardson Brown. Two Coleoptera, Philadelphia; Orthopteron, Bermuda. P. P. Calvert. Nine insects, Scotland and Pennsylvania. E. R. Casey. Three insects, Philadelphia. T. D. A. CocKERELL. Twenty-two bees, two Phenacoledes (fossil). W. P. CoMSTOCK. Two Theda immaculosis. Utah (paratypes). C. W. GoLE, Jr. Five hundred and sixty-six insects, Alberta and British Columbia, Canada. E. T. Cresson, Jr. Thirty-six insects, Pennsylvania. Delos E. Culver. Odonate, Philadelphia. J. H. Ferris. Beetle, Arizona. Henry Fox. Three thousand five hundred Orthoptera, Pennsylvania, New Jersey, and Massachusetts. W. J. Fox. Beetle, Philadelphia. H. W. Fowler. Six Coleoptera, Pennsylvania. C. W. Frost. Five insects, Pennsylvania. G. M. Greene. Twenty-five insects, United States; four Coleoptera, exotic. J. P. C. Griffith. Phyllium, Pharnacia, Ceylon. H. S. Harbeck. One Blattid. Dr. J. W. Harshberger. Moth, Florida. Morgan Hebard. Sixty-four Insara, United States, Mexico, Central America; one hundred and seven Dichopetala, Mexico and Texas; one hundred and forty- one Orthoptera, United States and Mexico; sixty-nine Orthoptera, Arizona; Texas, Florida; forty-seven insects. United States; one hundred and fourteen Coleoptera, Georgia; eighty-five Odonata, Michigan; two hundred and sixty-four Lepidoptera, Florida; one hundred and thirty-six insects. United States; one thousand six hundred and thirteen Lepidoptera, American and exotic. 718 PROCEEDINGS OF THE ACADEMY OF [DeC, Hebard-Academy Expeditions of 1909, 1910, 1912 and 1913. About 19,000 specimens of Orthoptera, southern and western United States. A. D. Hopkins. Five Dendrodonus, United States. Herman Hornig. Seventy-one insects, Philadelphia. P. Jorgensen. One hundred and fifty-four Orthoptera, Argentina. Bayard Long. Three hundred Orthoptera, Canada; one hundred and forty-one insects, Prince Edwards Island; twenty-five butterflies, Pennsylvania; nine Orthoptera, New Jersey. Philip Laurent. Two moths and larvae. Carlos Lizer. Twenty-three Orthoptera, Argentina. Charles Liebeck. Six earwigs, Canada. W. M. Mann. Six Orthoptera, United States. William Moore. Seventy-seven Orthoptera, Transvaal. Museum of Compar.'VTIVe Zoology. Nine Dichopelala, Mexico. EsBiA PiTUSEN. Thirty-two Orthoptera, Argentina. C. T. Ramsden. Six Butterflies and three Orthoptera, Cuba. F. W. R.AWLE, Jr. Moth, England. J. A. G. Rehn and Morgan Hebard. Four Plusiotis, Texas. C. Schrottky. Twenty-five Orthoptera, Paraguay. Henry Skinner. One hundred and thirty-seven insects, White Mountains, New Hampshire; two moths, Pennsylvania; thirteen butterflies, Alaska and California. Witmer Stone. Two hundred and twenty-four Orthoptera, Maryland, Minnesota, Wisconsin. United States National Museum. Two Dichopelala, Texas. E. G. Vanatta. Two hundred and sixty insects. New Jersey, Mar3dand, Pennsylvania. H. W. Wenzel. Fourteen Coleoptera, Pennsylvania; Orthopteron, New Jersey. L. H. Wild. Thirty-eight Hymenoptera, Washington. E,. C. W^iLLiAMS. Sixteen Pamphila, New Mexico. E. B. Williamson. Three moths, Indiana; twelve Orthoptera, Ontario. Purchased. Six hundred Coleoptera, British Guiana; six Ornithoptera, exotic; five hundred and ninety-eight Orthoptera, exotic; six hundred and seventy Orthoptera, Trinidad; eight hundred and thirty-seven Orthoptera, British Guiana; Collection of insects from Ecuador (S. N. Rhoads). Other Invertebrates. August and Karl Behr. Jar of crayfish, Jennings, Md. Dr. Amos P. Brown. Tray of Cypris, Antigua. D. E. Culver. Small collection of arachnida, Delaware County, Pa. Three starfish, Old Point Comfort, Va. Mrs. E. D. Douglass. Mellita lesludinala, Wildwood, N. J. H. W. Fowler. Several jars of crustaceans, Delaware; Balanus from High- land Beach, N. J. W. J. Fox. Vial of copepods from shark. Sea Isle Citj', N. J. Holothurian (Thyone), Townsend's Inlet, N. J. D. McCadden. Lernean parasite. Ocean City, N. J. Prawn {Penceus), Ocean City, N. J. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 719 H. L. Mather, Jr. Crayfish {Catnbarus hartonii), Cobb's Creek, N. J. Mrs. T. H. Montgomery. The T. H. Montgomery Collection of North American Spiders. Henry A. Pilsbry. Twenty-three species of invertebrates, Hawaiian Islands. Provident Life and Trust Co. Centipede {Scolopendra subspinipes), cap- tured in basement. E. G. Vanatta. Vial of Scolopendra, Philadelphia. Vial of Porcellio, Haddon Heights, N. J. R. W. Wehrle. Collection of crustaceans, Indiana, Pa. Fossil Invertebrates. Morgan Hebard and .J. A. G. Rehn. Gryphoea from Weatherford, Texas. Dr. a. p. Brown. One hundred and thirty-seven trays of Oligocene fossils from Antigua and Panama. Dr. W. H. Dall. Ten trays of Pliocene fossils from Panama and Costa Rica. Recent Plants. Charles F. Batchelder. Three hundred New England plants. Bermuda Expedition. Numerous cultivated species. J. Chester Bradley. Four specimens, Billy's Island, Ga. Dr. C. D. Fretz. Four thousand nine hundred and eightj'-two plants, mainly from Pennsylvania, but also from California, Florida, and North Carolina. Mrs. Joseph M. Fox. Four specimens from South Carolina. Gray Herbarium. One hundred and twelve Juncus, eastern United States and Canada. Dr. J. W. Harshberger. One hundred and seventy-five plants from Florida, etc. Bayard Long. One himdred and ninety-five plants from Bailey's Island, Me., and Pocono Plateau, Pa. Henry A. Lang. Forty-seven plants from Jamaica and four from New Hampshire. New York Botanic Garden. Ninety-one sheets from Cuba. Philadelphia Botanical Club. Three thousand three hundred and forty- one sheets. Harold W. Pretz. Twenty-three Pennsylvania and New Jersey plants. Harold St. John. Twenty-seven sheets of New England plants. Trenton Museum (exchange). One thousand eight hundred plants from United States and Canada. Miss Watson. Collection of Darjiling P>rns. Charles S. Williamson. Six hundred and seventy plants from Lake Superior, etc. University of Pennsylvania. Sixty-six sheets of Gerardia. Fossil Plants. Empire Co.\l Mining Co. Slab of plant impressions in coal slate. W. H. Wehrle. R. W. Collection of fossil plant fragments. Ethnology and Archeology. Edw. K. Bispham. Gorget, Philadelphia. Mrs. E. D. Douglass. String of shell beads; Pacific Islands. 720 ■ PROCEEDINGS OF THE ACADEMY OF [Dec, Wallace Early. Malay kris, probably from Philippine Islands. Charles Morris. Stone pestle and two grooved axe-heads, Mantua Farm, collected in 1810. Clarence B. Moore. Specimens of pottery, etc., from Indian mounds of the Southern States, added to the Clarence B. Moore Collection. Dr. Ludwig Pfeiffer. Six blocks of calcareous tufa, five worked flints, six specimens representing Rhinoceros and Equus. PateoHthic beds at Taubach Ehringsdorf, Weimar, Germany. Dr. N. W. Thoma.s. Two whale harpoons. Miss H. N. Wardle. Lock of hair from a Tsantsa, Ecuador. Minerals. Twenty-two specimens pm-cha.sed for the William .S. Vaux Collection. 1913.] NATURAL SCIENCES OF PHILADELPHIA. '21 INDEX TO GENERA, SPECIES, ETC., DESCRIBED AND REFERRED TO IN THE PROCEEDINGS FOR 1913. Species described as new are indicated by heavy-faced, synonyms by italic numerals. Abra lequalis 497 Abraeris nebulosa 339 signatipes 339 Ace^tra gladius 576 oxyrhynchus .., 576 Achatina concentrica 645 gundlachi 646 lamellata 645 pulchella 639 Acheta exigua 406, 417, 479 hospes 405,417 servilis 405, AM sylvestris 395 vittata.. 405, 406, 417 Achirus fasciatus 65 Acipenser sturio 62 Acmsea punctulata '496 Acontista bimaculata 284 Acornus 48 Acridida; 304 Acridinse 83 Acridium cruentatum 334 electum 334 omnicolor 334 paranense 112,340 peregrinum 112 Acris 161 Acrocinus longimanus 685 Acrorchilus alopecias 202 Acrosoma 12-spinosa 679 insequalis 679 Aery diina; 82 Aerydium latreillei 88 punctatum 316 Actinocyclus barkleyi aggrega- tus .582 Actitis maeularia 192 Adeorbis beaui 27 Admestina ! 187 iEquidens geayi 579 madeirse 576 rivulatus 579 tetramerus 579 Agaricia agarieites 497 Agathemera millepunctata 300 Agelsena sp 67S Agelaius icterocephalus 211 Agelena hentzi 182 naevia 182 pennsylvanica 183 Agrsecia maeulata 375 Agrioenemis 221 Agriolestes 257 Agrion eiehstattense 247 Aidemona 112 azteca 112 Ajaia ajaja 193 Alaba tervarieosa 495 Alabina cerithioides 495 Alcedinidaj 197 Alcedo amazona 197 americana 197 inda 197 torquata 197 Alenas brachypterus 338 gracilis 338 lincatus 338 vitticoUis 338 Algansea ant ica 69, ^.9 formosa 70, 70, 71 AUodape 29 Allolestes 259, 262 Allonemobius, 399, 402, 405, 430, 434. 444, 446 Allopodagrion, 234, 236, 237, 251, 258. 262, 263 nebulosum 250 Alosa sapidissima 62 Alveopora daedala 593, 599 fenestrata 599 microscopica 599 minor 593 regularis 593,599 Amaura olivacea 365 spinata 365 Amaurobius pictus 181 severus 181 nevadensis 181 Amazona amazonica 197 ochrocephala 197 '22 PROCEEDINGS OF THE ACADEMY OF [Dec, .\mblodon bubalus 45 45 cyprinella 45 45 169 Amblysr-aiihcus glaucipe.s lineatus 318 318 318 Amblytropidia robusta. . . . Ameiva ameiva septemlineata Ammotrecha stolli Amorphopus antennatus . -Vniphilestes 315 173 170 684 82 258 Amphiprora conspicua 582 246,248 Ampullaria 622 bridgesii crassa 620,660 620, 660 figulina 620,659 620, 659 insularum lineata nobilis peristomata testudinea Ampullariidpe Ainusium Aiiab lysis Anachis avara pulchella samanensis Anaulacomera argentina . cornucervi dama 620,659 620,660 620,660 620, 660 1120,659,660 . 623 . 603 102 495 495 495 367,370 369 367 367 Anaxipha 399,400,417,479 exigiia 479 Anchovia mitchillii 62 Ancylus 668,669,670 "barilensis 671 excentricus 671 moricandi 669,671 Andrenopsis 28 Androgynella 29 Anhima cornuta Anhinga anhinga 194 194 . 194 Aniara proxima Anisomorpha dentata Anisophlebia Anodon anserina ensiformis. . 360 300 252, 253, 254 667 667 AnodoH'tites 623 bartschi dalH 620,668 620,667 ensiformis 620,667 . . 668 trapesialis anserinus Anolis gemmosus nitens 620,667 169 172 Anohs n. bondi 171 Anomalocardia cuneimeris 497 flexuosa 608 Anostoma 622, 688-891 depressum 620, 643, 644, 689 octodentatum 620, 644, 689 ringens 690 Anthoglossa 28 Anthophora 29 pulchra 44 rhodoscymna 44 Anthoscenus superba 202 Anthracothorax gramineus 201 nigricoUis 201 Anthus lutescens 208 Antiphanes 101 nodicollis 102 Anypha^na furcatella 677 pretiosa 677 Aphyocharacina; 527 Aphyocharax avary 533 eques 534 Aplodinotus 45 grunniens 45 Apotettix bruneri 304 Ara araraima 196 Araniidcs cajanea 191 Arut intra aTUjiinosus 196 l("uc(jphthalmus 196 Area adamsi 496 antiquata 496 campeachiensis 496 chemnitzii 608 'deshayesi. 496 imbricata 496 occidentalis 496 reticulata 496 umbonata 496 Archecheir 518 Archilestes 246 Archimandrita marmorata 684 Arctosa cinerea 182 Ardea cocoi 193 helias 193 Hneata 193 striata 193 violacea 193 Ardeida; 193 Argiolestes 235, 243, 260, 261, 263 icteromelas 234, 243, 249, 250 postnodalis 261 Argiope argentata 679 Argizala... 39/^, 399, 403, 404, 445 brasiliensis 445, 446 Argonauta 74 Argyrtria chionopectus 201 fimbriata 201 Arionta veatchii 384 Arundinicola leucocephala 203 Ascaris mystax 148 Asiphonichthys 561 1913. NATURAL SCIENCES OF PHILADELPHIA. 723 Aspella scalaroides 495 Brunneria brasiliensis 284 Ast ra>a ant iouensis 599 subaptera 284 antillaruni 593 Bryconamericus alburnus 557 barbadensis 599 jacunda 555 cellulosa var. curvata. 593 smithi 557 costata 599 Bubonidae 196 crassolamellata 599 Bucco bicinctus 199 endothecata 599 dysoni 199 intermedia 599 Bucconidse 199 magnetica 599 Bufo americanus 62 magnifica 599 ciBruleocellatus 154 megalaxona 593 cteruleostictus 155 minor 599 chanchanensis 155 nobilis 599 glaberrimus 1.55 nugenti 599 hsmatiticus 155 l)iilchella 599 marmus 153 radiata 599 thaul 1.56 tenuis 599 tvphonius 153 Astralium brevispina 495 Bulimulus 622 tuberosum 495 (Protoglyptus) durus 626 Astroca-nia ornata 593 ,599 (Bulimulus) erectus 620, 635 Astroma chloroptenini compact um 311 guadalupensis ()0S . 609 308 ,311 (Rhinus) pubescens t;2() ^ 635 foliatum. 311 (Rhinus) rochai 620 ,636 Astroria affinis 593 (Rhinus) r. suturalis 620 , 637 antiguensis 593 (Rhinus) r. taipuensis 620 ,636 polygonalis 593 ,.599 sarochilus 636 Astroscopus guttatus Asturina nitida 65 194 schiedeanus (Bulimulus) tenuissimus.. .^620 381 1,635 A t rach elacr is olivaceus 340 vesicaHs uruguayensis 636 grammeus unicolor 340 Bulimus beckianus 6',', 340 erectus 635 Atractus badius 168 , 505 expansus 6S7 Atvs sandersoni 494 gracilis b-U Azilia vagepicta 180 meobambensis octogyrus 64U 6U Bairdiella chrysura 64 octonus h'/^/, Balanus eburneus 494 ,497 regalis 640 Basileuterus auricapillus olivas- tenuissmius . 635 cens 190 ,20S maxunus 634 vermivorus olivascens. W8 pulchellus 637 Basiliscus galeritus 169 Bulla rivalis 661 Bathyphantes 179 Bullaria occidentalis 494 ,608 Belonopterus cayennensis . 192 Burgilis 354 Bifidaria 622 curta 3.54 servilis 620 ,646 grandis 354,356 , 3.58 , 3.59 Binghamiella 28 mendosensis 354 , 357 , 3.59 antipodes 32 missionum 354 ,358 Bittium varium 49b Busarellus nit^ricollis 195 Blabera fraterna ^8^ Buti'ogalhis a'ciuiiioctialis 195 fumigata 282 Butoridcs striata 193 Blaberus fraternus 282 Byssoarca f usca 496 Blatta biguttata ^8^ germanica '.. 277 277 ''11 limbata Caconemobius 398 Blat tella germanica 277 Cadulus vaughani 496 Blattida? 275 Csecilioides 622 Boiidse 171 (Geostilbia) gundlachi 620 Brachynemobius 403, 443, 446 | Caeloria dens-elephantis 593 Brachvphyllia sp 599 Caiman 173 Brevoortia tyrannus 62 i Caletodes 98 724 PROCEEDINGS OF THE ACADEMY OF [Dec. Caletodes alatus 98 fest£e 98 pulchripes 98 Callinectes sapidus 64 Callinsaria 361 clupeipennis 362 Calliophis japonious 508, 509 macclellandii 508,512 swinhoei 508, 512, 513 Calliste desmarestii 210 Calliteuthis 76 asteroessa 75 (Meleagroteuthis) heteropsis .. 75 Callithera aulica 187 Callomelitta 28, 32 picta 32 Callophis boettgeri 508, 511 Calopteryx 255 Calyptroea candeana 495 Campephilus melanoleucos 200 Campylopterus ensipennis 200 Campylorhynchus nuchalis 206 Canestrinia blattophaga 684 Canuleius inermis 300 Caprimulgidae 198 Caprimulgus acutipennis 198 albiooUis 198 ' leuoopygus ; 198 [ Cardium medium 496 j muricatum 496, 608 I serratum 496 Carpiodes 45 carpio 46 cutisanserinus 46, 47 cyprinus 46 difformis 46, 47 elongatiis 47 grayi 47 nummifer 4^,46 selene 47 thompsoni 46, 47 tumidus 46 , velifer 47 ; Castalia 623 ambigua 620,664 quadrilatera &1Q,664 Castianeira bicalcarata 181 Cathartidse 194 Catostomus 48 alticolus .52 ardens 52 catostomus 51 chloropteron 55 commersonnii 52 c. sucklii 52 cypho 55 cyprinus 45 fecundus 53 gila 52 humboldtianus -^5,48 insignis 53 Catostomus labiatus JfS, 48, 4^, 51 I latipinnis 48 i nigricans 53, 56- occidentalis 48, 51 o. humboldtianus 48 o. lacus-anserinus Jf9 plebeius 47 retropinnis 48 snyderi .. 51 tahoensis. 52' teres 55 texanus -54, 55 tsiltcoosensis .48 warnerensis 51 Caulopsis gracilis 374 Celaenopsis angustus 686 [ Celeus elegans hellmayri 200 I Centrurus bicolor 684 margaritatus 684 Centurus terricolor 200 Ceophloeus lineatus 200 Cephalocoema costulata 307 lineata 307 Cepolis (Hemitrochus) graminicola 6 Ceraia cornutoides 365 Ceratistus 301, 302 j Ceratura 221 Cercopithecus mona 147 j potas 147 sabseus 147 Cerion 381 Cerithidea varicosa 495, 497 Cerithiopsis sp 495 Cerithium algicola 495 literatum 495 medium 495 variabile 495 Ceroys coronatus 300' similis 300' Certhia caeruleus 210 cinnamomea 203' Certhiola luteola '... 209 Ceryle amazona 197 americana 190, 197 inda 197 torquata 197 Chsemepelia rufipennis 191 Chaetsessa burmeisteri 28/i. Chalcinse ■... 560 Chalcinus angulatus 560 Chalcopteryx 246, 247 Chama sp 496 Chara 598 Characidse 517 Characinae 561, 563 Charadriidae 192 Charax goeldii 568 sardina 566, 571 Chasmistes 53 brevirostris 53 chamberlaini 54 1913. NATURAL SCIENCES OF PHILADELPHIA. 725 Chasmistes cujus ^^'^A liorus ^'^ luxatus '^1 stomias ^^ Chelanops nodulimanus 683 uniformis 683 Chelifer canestrinii 684 Chelydra serpentina 62 Chemmis frederici 67/ Colonia radiata '— "^ Colopteryx galeatus _ 205 Coluber corais I'l. I'-' Colubridse ^^^' ^m Columba rufina 191 Columbella mercatoria 495 Columbidae 191 Columbina rufipennis 191 Compsothylypis pitiayumi ele- punctigera. 677 210 198 peruviana, stolli Chione cancellata 497, 608 Chiroxiphia lanceolata 190, 206 Chlocaltis conspersa 314 Chlorestes notatus 202 Chloridella empusa 64 Chlorolestes, 221, 222, 244, 26U, 262^ fasciata 221,222,244 longicauda 221, 223 Chlorophanes spiza Chordeiles acutipennis Chromacris ^^ miles 33- 3.32, 333 62 200 300 202 576 181 ISO 180 180 180 180 180 Circus buffoni IQ'l Cistula antiguensis 609 Cladocerapis 28 Cladocora orbuscula 497 Clathurella jowettii 494 Clubiona tigrina 677 Clypeaster aiitillarum 601 Chrvsemys picta .■• Chrysoptilus punctigula puncti- pectus punctipectus Chrysuronia ocnone Cichlidse Cicurina arcuata. atomaria ludovicina. nevadensis robusta simplex gans .190, 208 497 375 375 375 374 375 494 Congeria (Mytilop.5is) cochleata Conocephalus infuscatus longipes macropteras muticus satiu-atus Conus proteus Copiocera 9^ lepida..... 94 specularis.... 94 Surinam ensis... "* Coptopteryx ^ _ 285 argentma -,. ^^^. _ claraziana 285, 286, 28/ constricta 285,286,291 crenaticoUis 285-28/ gavi 285, 286, 288, 288-291 thoracica 285,286,288 Corallus cookii 171 Corbula equivalvis 49/^ swiftiana 49/ Coriarachne versicolor 183 Corinna amoena... 183 bivittata 183 cingulata 183 ornata Ig tricolor i»3 ^°™"" :62i,6ao .621,640 330 ^ 600 Cnemidophorus lemniscatus 173 Cobanus mandibularis 680 Coccyzus pumilus 198 Cochlogena maxima 634 Codakia antillarum 496 orbicularis 608 orbiculata 496,608 -Coelioxys ■ •■ 29 •Coeloptema ^^'^ Ccelotes bimucronatus 180 Coelurichthys 535 Ccereba luteola 209 Coerebidae 209 Colibri delphinse 201 Colomesus psittacus 5/9 205 64 203 regma •■ • Coryacris angustipennis diversipes Cotingidse Crago septemspinosus Craspedoprion olivaceus guianen- sis Crassinella guadalupensis 49b Crax alector 190 Creagrutus affinis ■■■-■ 555 anary ^®"' ^^^ brevipinnis 555 magdalenae 555 Crepidula convexa 495 plana 495 Crocisa 29 pantalon 29 Crocodilidse 1^3 Crocomorphus semicinnamomeus.. 200 Crotalidffi 169 Crotophaga ani 198 major 198 726 PROCEEDINGS OF THE ACADEMY OF [Dec, Cryphoeca peckhami 180 Crypturus boucardi 190 columbianus 190, 190 Ctenobrycon alleni 540 rhabdops 537 Ctenosaura acanthura 173 Ctenus sp 680 Cuculidae 198 Cupiennius coccineus 679 griseus 679 Curimata spilura 673 Curimatinse 517 Curimatus cyprinoides 517 dorsalis 675 spilurus 673 stigmaturus 673, 675 tigris 518 vittatus 520 Cuspidaria (Cardiomya) cos- tellata '. 496 Cyanerpes caeruleus 210 cyaneus 209 Cyanocephalus porcarius 147 sphinx 147 Cybseus morosus 180 pusillus 180 reticulatus 180 Cycleptus elongatus 45 Cyclorhis flavipectus 207 gujanensis flavipectus 207 Cylichnella bidentata 494 Cymatium tuberosum 495 vespaceum 495 Cymbella 581 Cynorta albomaculata 681 biguttata 681 conspersa 682 flavornata 681,682 longispina 68 1 oculata 681 Cynoscion nebulosus 64 regalis 64 Cyprinodon variegatus 63 Cyrena (Polymesoda) acuta 497 Cyrtocharax 568 Cyrtoxyphus variegatus... .4-3^, 455, 480 Cysticercus tenuicollis 149 Cystignathidffi 161 Cythara balteata 494 biconica 494 Dacnis cayana 209 Dasyscelis dilatatus 372 normalis 371 Deltistes 54 luxatus 53, 54 Dendrobates trivittatus 164 Dendrobatidae 164 Dendrocincla meruloides phaeo- chroa 190,203 phffiochroa 203 Dendrocolaptidae Dendroica a^stiva Dendroplex albolineatus picirostris Dendryphantes aestivalis maxillosus militaris octavus Dentalium callithrix Dermatocheir Dianthidium Diatrypa tuberculata Dichroplus amoenus bergii I brasiliensis I con^persus I dubius I elongatus. ! olivaceus peruvianus pratensis punctulatus ' robustulus vittatus Diedronotus angulat us discoideus Isevipes rosulentus Dimeragrion, 238, 254, 259, 262, percubitale 238, 239, 250, Diplodon kelseyi 621, obsolescens 621, Diplodonta mediamericana 496, nucleiformis puncturella soror Diplothecanthus antillarum concavus 600, Diponthus argentinus crassus electus festivus paraguayensis Dipsadidse Dipsadomorphinse Discopsis costulatum .r omalos schumoi Dolichocerus bicornis Donacobius atricapillus Doryssa 622, aquatilis buUata 621,648, cachoeirae 621, c. sulcata 621, consolidata devians 202 208. 203 203 186 680' 186 186 496 518 29 379 113 113 345 345 344 344 341 3JfO- 113 341 343 345 344 88 330 330 330 88 263, 265 ,265 622 499 499 499 496 601 601 336 335 334 335 335 80 78 25 25 24 141 207 648 648 651 650' 1913.J NATURAL SCIENCES OF PHILADELPHIA. 727' Doryssa globosa 621, 651, 654 heathi 621, 653, 655 hohenackeri 656 iheringi 621,654 inconspicua 621, 650, 657 lumbricus 648 macapa 648, 650, 651 pernambucensis 653 rex 621,650 r. regina 621, 651 r'x3sa 654 starksi 621,652 transversa 648, 649, 651, 657 t. jaryensis 621, 649 t. tapajosensis 621, 649 tuc unareensis 62 1 , 656 Drepanodon 505, 507 anomalus 505 eatoni 506 erdisii 506 Drillia harfordiana var. colonen- sis 494,498 h. var. flucki 498 leucocyma 494 ostrearum 494 Drymaeus 622 branneri 621, 637 elongatus 608,609 eximnsus 62 1 , 637 hidalgoi 639 linostoma 638 1. suprapunctatus 621, 638, 639 similaris 638 strigatus 638 subsimilaris '. 638 Drymobius boddsertii 168, 171 dendrophis 168 Dynastes hercvdes 686 Dysagrion, 220, 230, 231, 246, 251, 252, 257, 261, 262 fredericii 220,231 packardii 231,250 Ebo oblonga 179 Echinanthus antillarum 600, 601 concavus 600, 600 Echinolampas anguillse 601 Edricus crassicauda 678 tricuspis 678 Ela^nea flavogaster 204 gaimardii 204 g. guianensis 204 sp , 203 Eteochlora angustipennis 330 viridicata 331 Elainopsis 204 Elanus leucurus 196 Elapin* 168 Elaps 514 fraseri 168 fulvius 173 Elaps heterochilus 508, 514 spixii 508,514 Emberiza militaris 211 Emyglossa tenuicornis 34 Engina turbinella 495 Engystomatidse 164, 173 Entodina 622 jekylli 621,630 reyrei 631 Eomorphopus 82 granulatus 82 Epallage 246 Epeira hispida 184 ravilla 184 Epeolus 29 Epilampra caizana 279 stigmatiphora 279 testacea 279 verticalis 28 1 Ep iphr agmophor a ar eolata S90 pandorse 382 p. bonitosensis 35^,384 Eremarionta 382 Erimyzon sucetta 55 s. oblongus 56 Eris aurigera 186 Eritettix 315 Erpetodryas fuscus 168 sexcarinatus 171 Erythrolamprina; .78,80 Erythrolamprus 80 sesculapii., 78 Erythroxyrhopus 80 Etropus microstomus 65 Euglandina 623 n. sp 627 striata 621,627 Eulima bifasciata 495 Eumastacinse 82 Eunemobius, 400, 403, 467, 468, 473, 475, 489 Euophrys amabilis 186 humilis 186 leucophsea 186 obf uscata 187 Eupagurus longicarpus 64 Euparypha 381 Eupatagus 601 Eupera 622 sp 621,663 Euphffia _. 246 longiventris 252 Euphseopsis 248,252-254 multinervis 246, 250, 251 Euphonia trinitatis 210 Euplectrotettix conspersus .319, 320 prasinus 319,320 schulzi 319,320 Euprosopis 28 elegans 43- e. var. sydneyana 43. ■28 PROCEEDINGS OF THE ACADEMY OF [Dec. Euprosopis nodosicornis 43 Euryglossa 29, 34, 35 aurantifera 33 carnosa 33 depressa 33 , 34 frenchii 36 geminata 33 haematura 36 leptospermi 36 neglectula 37 nigrocaerulea 33, 34 ruberrima 36 rubricata 36 salaris 36 schomburgki 34 sinapina 35 sinapipes 35 sanguinosa 35 subsericea 33, 34 terminata 36 Euryglossella 29 Eurvglos.-iii('nia 581 Geothlypis ajquinoctialis 208 Geranospizias cajrulescens 194 Glabaris ensiformis 667 Glauconia albifrons... 173 Glauconida; 173 Glaucis hirsuta 200 Glenognatha emertoni 180 Gnathocharax 560 steindachneri 560, 561 Gnathoprosopis 28, 38 Gomphocerus (Sinipta) dalmani ... 315 (Hyalopteryx) paganus 313 Gonatodes caudiscutatus 169 Gonatus fabricii 76, 76, 77 magister 76 Goniocolletes 28 Grammadera albida 371 GryUidae 376 Gryllus aegyptius 110 argentinus 377 brevicornis 313 fasciatus ....405, Jfi5, U6, 476 frenatus 92 hospes Jfi5 (Locusta) miles 332 niger 366 perspicillatus 102 1913. NATURAL SCIENCES OF PHILADELPHIA. 729 GrylJus (Mantis) precarius 299 (Nemobius) pulicarius 399 (Nemobius) pumilus 399 punctulatus 343 (Bulla) serratus 330 violaceus 353 Guara rubra 193 Gundlachia 622, 668, 669, 670 bakeri 621, 663, 670, 671 textilina 671 Guppya 622 mayi....... 621,632 seminlini 632 Gymnocera elegans 366 Gymnomystax mexicanus 211 Habrocestum pulex 187 Halictus 29 leai 32 Haminea antillarum 494 canalis 494 Haplocochlias cvclophorous 24 swifti ". 23 Happia 623 snethlagei 621,629 Hebetancylus 671 Heleodytes minor 206 nuchalis 206 Helicina 623 aureola 7 (Lucidella) aureola 10 bourguignatiana 626 crosbyi 609,612 guajarana 621,626 laterculus 626 lirifera 621,626 neritella angulata 612 schereri 621,625 Helicops angulatus 171 Helix areolata 380, 384, 390, 391 aureola 3, 7, 7, 10 canescens 386, 387 cseca 63B cantagallana 634 damascenus 382 decorata 392 deformis 627 kellettii 383 levis 380, 387, 388, 389, 391 oblonga 634 pandoriE 382, 383 pintadina 635 pisana 392 (Bulimus) pubescens (Cochlitoma) regina rugifera selenostoma striata sultana tenuissima...: tryoni 48 640 633 633 627 640 635 383 Helix veatchii 384 Hemigrammus melanochrous 543 ocellifer 545 schmardse 545 Hemiphlebia 221 Hemisinus 622 bieinctus 657 brasiliensis 621,657 flammeus 621,657 f. elongatus 621, 657 venezuelensis 657 zebra 657 Hemitrochus 381 Henia 92 boliviana 92 Hernandria ventralis 680 Herpetotheres cachinnans 195 sociabilis 195 Heteragrion 262, 263, 264 chrysops 222, 223, 264 erythrogastrum 234 petiolatum 260 tricellulare 234, 239, 250 Heterapis 29 Heteropodagrion, 240, 259, 260, 262, 263 Himantodes gemmistriatus 173 Hirundinida; 206 Hirundo albiventer 206 chalybea 206 Holoprion 535 Holoquiscalus lugubris 212 Holoshesthes 535 Homalopsinse 168 Hormilia 361 Hyalopteryx asinus 313 gracilis 313 rufipennis 312 specularis 313 Hydrocorax vigua 194 Hyla auraria 161 chimboe 157 depressiceps 159 labialis 159 maxima : 156, 170 mesophsea 160 nebulosa 159 phiEota 159 quinquefasciata 160 quitoe 159 riobambae 157 rubra 156,157 venulosa 160 Hylaeoides 29 Hylidaj... 170 Hylocharis cyanus viridiventris 202 Hylodes achatinus 163 buckleyi 163 conspicillatus 161 longirostris '. 164 pagmsB 162 730 PROCEEDINGS OF THE ACADEMY OF [Dec, Hylodes surdus 163 unistrigatus 162, 163 whymperi 163 Hyloxalus bocagei....: 166 huigrse 165 Hyperophora angustipennis 360 brasiliensis 360 major 360 minor 360 Hyphessobrycon 518 agulha 549 bellotti.... 552 hasemani 545 minor 547 stigmatias 547 Hypoaspis distans 686 Hyponeura 235 Hyria corrugata exasperata 621, 664 exasperata 664 jamauchimensis 621, 664 rugossissima 665 Ibididae 193 Icteridaj 211 Icterus am-icapillus 190, 211 chrysocephalus 212 xanthornus 212 Ictiobus 45 Idiopyrgus • 622 pilsbryi 621,658 souleyetanus.. 659 Iguana tuberculata 172 Iguanida; 169, 171, 173 Innuus ecaudatus 147 erythryacus 147 Insara 361 Inusia pallida 337 Iridoprocne albiventer 206 Isastrsea conferta 593 turbinata 593 Ischnoptera brasiliensis 276 marginata 276 rufa 276 Ischnura denticoUis 222, 224 granti 222,224 Isophlebia 252, 253, 254 Jacana jacana 192 Jacanidse 192 Jacaretinga sclerops 173 Janus albocinctus 187 gibberosus 187 Jodacris nebulosa 339 Kinosternon pensylvanicum 62 Lachesis lanceolatus 507 microphthalmus 169 schlegelii 169 Lactista pulchripennis 85 Lagodon rhomboides 64 Lampropeltis micropholis 168 Lampropsar guianensis 212 tangrinus guianensis 212 Lanius canadensis 202 carbo 210 cayanus 205 dominicensis 205 lictor 20Jf. pitangua 205 punctatus 202 Laphyctes satrapa 205 Laridaj..... 192 Latirus cingulifera 495 Leda acuta 496 commutata 499 j amaicensis 499 mauritiana 499 vulgaris 496,499,500 V. var. obliterata 500 Leiotettix flavipes 348 hastatus 348 politus 346 pulcher 348 sanguineus 346 Leistes militaris 211 Leptinaria 623 anomala 646 imperforata 621,646 lamellata 621,645 1. concentrica 621, 645 perforata 621, 645 Leptodeira albofusca 168 personata 173 Leptodon uncinatus 196 Leptognathus andianus 169 ellipsifera 169 Leptophis occidentalis 168 Leptotila insularis 191 verreauxi insularis 191 Leptysma filiformis 336 obscura 336 Leptysmina pallida 337 Lerneaenicus radiatus 62 Lestis 29 serata 44 bombylans 44 Leucauge hortorum 678 Leuciscus 70 lineatus , 71 Leucochroa 381 Leucopternus albicoUis 195 Leucos 66 Leucus dimidiatus 66, 67 olivaceus 66, m Libellago 235 Ligocatinus borrellii 365 olivaceus 365 spinatus 365 Linyphia galbea 179 Liobunum biolleyi 683 foveolatum 683 1913.] NATURAL SCIENCES OF PHILADELPHIA. 731 Liocephalus guntheri 170 iridescens 170 Liophis albiventris 168 Lipomyzon 53, 54 brevirostris 53 cujus oU liorus 53 Lithagrion, 232, 251, 254, 259, 262, 263 hyalinum 250 Lithurgus 29 Littoridina 622 charruana 658 maniii 621, 658 Littorina angulifera 495 Livona pica 608 Locusta spinipes 376 Locustinae 88 Lophopsetta maculata 65 Loricariidse 571 Loricariinse 574 Loxia americana 208 grisea 208 minuta 208 Lucania parva 63 Lucidella 3 aureola 3-8, 10-12, 15, 16, 18 a. var. granulosa 7,7 a. minor 16 granulosa 3-7, 11-18 montegoensis 12 undulata 7, 7 Lucina chrysostoma 496 Lycosa aspera 182 brevitarsis 680 exalbida 182 febriculosa 182 hellus 182 Lygophis 80 Lymnaea columella 62 Lystrophis dorbigny 216 semicinctus 215 Mabuya agilis 173 M achetornis flavigularis 203 Msevia annulipes 187 aurulenta 187 cristata 187 lineata 187 niger 187 pallida 187 pehcillata 187 sulphurea 187 tibialis 187 vittata 186,187 Malmagrion eichstattense 247 Mangora picta 679 trilineata 679 Manicina areolata 497 Mantida; 284 Mantis argentina 286 crenaticoUis 290,2^\ Mantis gayi 290 hyaloptera 298 lobipes 299^ rustica 29!^ unipunctata 298 Mantoida burmeisteri 284 Marginella cincta 495 minuta 495 pallida 495 Marinula colonia 494 Marisa 622 cornu-arietis 621,661 Marpissa undata 187 varia 187 Mastax nigra 82 Maypacius floridanus 181 Mecistogaster 234 Megachile 29 cornifera 44 fumipennis 44 monstrosa 44 m. cornifera 44 semiluctuosa 44 Megaloprepus 234,235 I Megalostrata venifica 183 Megamyrmecion californicum 181 Meganeurula 245 Megapodagrion...236, 237, 258, 262, 263 j nebulosum 236 Megarhynchus pitangua 205 Megastomatobus 45 Melanagrion, 220, 231, 249, 251, 257, I 261-26S umbratum 250 ' Melania batesii ,. 648. branca 648 bullata 651 charpentieri 648 transversa 6J^9 ventricosa 648 Melanopsis brasiliensis 657 Meleagroteuthis 76 hoylei 75,75 Melestora adspersicollis 283 fulvella 28S fuscella 283 Melina ephippium 496 Melittosmithia 29 Mellitidia 29 Melongena melongena 497, 608 Menidia beryllina 63 menidia notata 63 Menticirrhus saxatilis 64 Meroglossa 28 desponsa var. kershawi 32 . ion 240, 261-263 Mesopodagrion 258,262 Metacyrba 187 Metagrion 261 Metaleptea minor SIJ^ Metalia sp 601 732 PROCEEDINGS OF THE ACADEMY OF [Dec. Meterginus signatus 683 JVIetula amosi 22 elongata 23 gabbi 23 Miathyria simplex 248 Micrarionta 382 areolata 386, 390, 392 a. var. arida 391 A. var. aspersa 392 a. var. exanimata 391,392 a. var. scammoni 392 desertorum 382 facta 382 gabbi 382 guadaloupiana 382 hutsoni 382 kelletti 382 leucanthea 385, 386 levis 382,387 1. var. crassula 389 1. globosa..' 389 orcutti 382 pandorjB 382,384 ruficincta 382 .stearnsiana 382 veatchii 382, 384, 386, 387 V. canescens 386 V. leucanthea 385 M icromerus 235 Micropogon undulatus 64 M icr orhopias grisea intermedia. .190, 202 JVIicrostigma 235 Milvus leucurus 196 Mimidae 207 Mimus gilvus melanopterus 207 melanopterus W7 Minvtrema melanops 56 Miogryllus ......399,400 Mionectes oleagineus pallidiven- tris 203 Miopteryx rustica 294 Misumena georgiana 179 spinosa 179 Mniotiltida? 207 Modulus catenulatus 495 modulus 495,608 Mrenkhausia cotinho 549 lepidura 543 1. gracilima 543 '1. madeirse '. 540 Mohnia buccinoides 503 corbis 501 exquisita 502 hondoensis 503 japonica 503 kurilana 503 robusta 501 siphonoides 502 vernalis 502 Monastria biguttata 282 JMorone americana 64 Motacilla sequinoctialis 208 estiva 208 cayana 209 cyanea 209 galeata 205 novaboracensis 208 spiza 210 Motacillida; 208 Moxostoma 60 alleghaniensis 58 anisurum » 56 aureolum 57-59 austrinum 57 breviceps 59 cervinum 60 claviformis 56 coUapsum 57 congestum 55, 57 crassilabre 59 duquesnei 58 erythrurum 57, 59 kemerlyi 55, 55 lachrymale 58 lesueurii 58 macrolepidotum 58 robustum 57 rupiscartes 60 Mugil curema 63 Murex nodatus 495 pomum 495 rufus 495 Muscicapa maculata 204 pica 203 rufa 205 tyrannus 205 Muscicapara gaimardii 204 Muscivora tyrannus 205 Musculium partumeium 62 Mustelus canis 62 Mya syrmatophora 665 Mycetes seniculus 147 Myiarchus ferox venezuelensis 205 venezuelensis 205 Myiodynastes maculatus 204 Myiozetetes similis columbianus, 190, 204, 204 Myloleucus 66 bicolor 69 parovanus 69 pulverulentus 71 thalassinus 68, 69 Myospiza manimbe 209 Myrmarachne 188 hentzi 188 Mytilus exustus 496 Naja leucodira 509 morgani 508, 509 tripudians samarensis 508 sputatrix 509 tripudians 508, 509 t. var. samarensis 508 1913. NATURAL SCIENCES OF PHILADELPHIA. ■33 523 Nannostominse ■_ Nannostomus stigmasemion 523 Nannotettix bilineatus 372 guentheri 372 pallidevittatus 372 Nassa vibex 495 Natica pusilla 495 Navicula placenta Oqq Necator americana 13o Nemobius, 394, 395, 398-401, 404, 417, 433, 446, 451-453, 455, 460, 466, 468, 489, 491 affinis 474,4?5,480 aUeni 400 ambitiosus, 401, 402, 404, 430, 439, 441 angusticoUis 401, 47^, 480 aterrimus, 400, 425, ^56, 460, U75 brasiliensis, 399, 401, 403, 426, 444-^46, 44^ brevicaudus -4^^ bruneri, 401, 403, 438, 449, 452, 480 canus, 400, .',08, 409, 415, 417, 423 425, 427 carolinus, 400, 401, 404, 408, 417, 452, 455, 4-55, 460, 461, 467, 468, 471 472-475, 479, 480, 482-490 j c. brevicaudus 401,404,482 , c. neomexicanus, 401, 404, 451, j 462,483,484,487 circumcinctus 399 comanchus 401, 461, 464 confusus, 401, 404, 430, 468, 474, 475, 478, 480, 489, 492 cubensis, 400, 401, 403, 407, 417, 425, 434, 437, 455-457, 460-463, 468, 469, 474, 47o, 479, 480 c. mormonius, 401, 403, 445, 452, 456, 461, 467, 485, 488 delicatus 399 denticulatus '^^^'^' ^ distinguendus 399,400 ensifer. 399,400 exiguus, 400, 405, 417, 473, 474, 475, 479, 480 fasciatus, 376, 400, 402, 405, 407- 410 412-417, 422-433, 435, 437, 440, 444-447, 452, 456, 457, 469. 471, 478, 479 f. abortivus, 401, 402, 412-415, 427, 429 f. socius, 400, 401, 402, 412-416, 424-426, 437 f. vittatus 407,408,409 funeralis -^37 eriseus, 401, 402, 404, 409, 410, 430, 434, 436-438, 440 g. funeralis 401, 402, 404, 437 hastatus 401,426 janus 475,480 Nemobius lineolatus 398 longipennis 376,377,446 maculatus, 401, 402, 404, 4O8, 409, 409, 410, 411, 417, 428, 430, 433, 441,489,491,492 major j-tb marginatus 41/ melleus 401,44^,449 mexicanus, 400, 444, 445, 4^0, 451, 467,465,467 mormonius -^61 neomexicanus 400, 467, 4^4, 488 palustris, 401, 403, 409, 417, 4.56, 4.57, 460, 468, 471, 472, 474, 47o, 480, 489, 490 p. aurantius 401, 403, 4/2 panteli 401,443,444 pictus 399,400 mfus 377,400 (anaxipha) septentnonalis, 4' 3, socius 423,427,474,480 svlvestris 395, 405, 450, 451 toltecus. 403, 449-451, /M, 488 trinitatis 400 utahensis 400, 407, 4O8, 409, 417 vittatus 405, 4O6, 407, 409, 474 volaticus, 401, 4oo, 460, 473, 474^ 479,480 Nemosia nigrogenis...: Neoceratina Neoconocephalus macropt erus muticus redtenbacheri saturatus Neonemobius 403, 449, 456, Neopasiphae Neoxabea brevipes ■_ bipunctata 377, Neritina virginea 494, viridis Nesolestes 245,258, Neuragrion, 240, 241, 2.57, 259, 262, mysticum 221, Neurolestes 245, 2.57, 262, trinervis 221,223, Neurothemis Nitzschia clausii Nomada Nomia austraUca flavoviridis Nomioides Notolepidomyzon... Nototrema marsupiatum. Nyctibora limbata Nyctidromus albicollis Nyctinassa violacea Nyctiprogne leucopyga . . -209 29 375 374 375 37.'> 46H 29 377 378 497 490 262 26a 223 264 245 255 581 582 20 29 44 44 44 29 47 161 277 198 193 198 734 PROCEEDINGS OF THE ACADEMY OF [Dec, Octopus (Polypus) 77 granulatus 77 4 Idontostilbe drepanon 529 fugitiva 529,532 madeirae 527 < )dontostomus 622 costulatus 62 1 fasciatus 621 (Cyclodontina) inflatus 621, 640 (Cyclodontina) i. costulatus, 641, 642 (Cyclodontina) i. fasciatus, 641, 642 (Cyclodontina) i. marangua- pensis 641 maranguapensis 621 scabrellus 642 s. cylindricus 621 clamata 167 RanidjE 164 Ranula brevipalmata 167 Rhadinsea cobella .171 Rhesus macaque 147 Rhicnoda jorgenseni 27" rugosa 21 1 Rhinagrion 258, 262 Rhinocypha biforata 235 Rhinophrynus dorsalis. 173 Rhinus 636 Rhipidolestes, 241, 249, 256, 257, 262. 263 aculeata 241,250 Rhodarsea irregularis 599 Rhomalea peruviana 88 Rhynchocyclus assimilis 20 J^ olivaceus guianensis 203 sulphurescens assimilis 204 Rhyncholophus stolli 685 Rhynchops cinerascens 192 nigra cinerescens 192 Rissoina cancellata 495 elegantissima 495 laevigata var . browniana 495 striatocostat a 495 Roccus lineatus 64 Rostrhamus sociabilis 195 Rupornis magnirostris 195 ' Rutilus 66,70 1 anticus 69 bicolor 69 formosus 70 olivaceus 66 ] oregonensis 67 symmetricus 70 tiialassinus 68 ! Saltator oiivascens 209 I Salticus albocinctus 188 ephippiatus 188 I scenicus 187 738 PROCEEDINGS OF THE ACADEMY OF [Dec. iSaparus 101 sequatorialis 101 Sarcorhampus papa 194 Saropoda 29 bombif ormis 44 Saucerottea erythronota feliciae 201 Saurophagus rufipennis 204 Scala (Sthenorhytis) antiguensis. . 612 Scapharca pittieri 496 Scaphura nigra 366 Scapteriscus borellii 376 Scardafella ridgwayi 191 Scartomyzon 59 Schistocerca 110 segyptia 110 jBqualis Ill, 112 desiliens 111,112 infumata 339 peregrina 112 paranensis ....' 112, 340 vaga 110,111 V. brevis 110,111 Schizaster clevei 601 Sciaenops ocellatus 64 Scincidse 173 Sclateria naevia 202 Sclenops mexicana 679 Sclerognathus 45 cyprinella 45 Scolodonta 628 Scolopacidae 192 Scolopax rubra 193 brasiliensis 192 Scomber scombrus 64 Scyllina 318 picta 321 Segmentina 622 janeirensis 663 paparyensis 622, 662 Seiurus novaboracensis 208 Sergiolus cyaneiventris 181 Serinopsis arvensis minor 209 Sicalis colombiana 209 •Siderastrea sidera 497 Sidusa fulvoguttata 680 Sigaretus perspectivus 495 Silliis putus 678 Singa abbreviata 679 dotana 679 vanbruysellii 182 Sinipta dalmani 315 Siphateles 66 vittatus 66,^7 Sisantum gracilicorne 316 Sismondia antillarum 601 Sitalces 105 balzapambse 105 debilis 108 nudus 108 trinitatis 106 volvexemi 105 Sitta nsevia 202 Solaropsis 622 rugifera 622,633 r. var. jumana 634 Solenastrsea turonensis 593 Sonorella.... 382 Sosilaus spiniger ;... 182 Sosippus californicus 182 Sparvius caerulescens 194 Spathalium 86,325 bolivari 329 cyanopterum 329 hispidum 86 klugii 329 paranense 86 serrulatum 329 sommeri 86 stali 329 Sphecodes 29 Spheroides maculatus 65 Spilotes pullatus 171 Spiroptera 129, 132. 137 incerta 126, 131, 133, 146 pungens 126 sanguinolenta 137, 139 Spondylus bostrichites 603 sp... 603 Sporophila americana 208 grisea 208 minuta 208 Stagmatoptera hyaloptera 298 precaria 299 Staurorhectus glaucipes 318 intermedius 318 longicornis 317,318 Steirodon dentiferum 367 Steleopteron 246, 248, 249, 251-255 deichmiilleri 250 Steleoxiphus catastates 301 Stelgidopteryx ruficollis aequalis... 206 Stenobothrus signatipennis 321, 322 Stenodictya 255 Stenophlebia 252, 253, 254 Stenopoda bohlsii 338 Stenotomus chrysops 64 Stenotritus 29 Stephanocsenia sp 599 tenuis 593 Stilpnochlora incisa 367 Stilpnosoma 28 Sterna chloropoda 192 Stirapleura bruneri 321 Stratocles 301 Streptaxis 623,629 abunaensis 622, 629 comboides laevigata 622, 627 cookeana 622,628 cumingianus 629 deformis 622,627 deplanchei 622,628 d. quixadaensis 622, 628 1913.] NATURAL SCIENCES OF PHILADELPHIA. 739 Streptaxis glaber 629 subregularis 622, 627 Strix perspicillata 196 Strobilops 622 *brasiliana 622,647 Strombus bituberculatus 495 gigas 608 pugillus 495 Strophocheilus 622 (Borus) cantagallanus 622, 634 (Boms) maximus 622,634 (Bonis) oblongus 622, 634 8tygnoleptes 682 analis 682 StylocEenia lobato-rotundata 593 Stylophora sp 599 Subemarginula emarginata 496 roUandii 496 Subulina 622 octona 609,622 Succinea 622 barbadensis 609 boonii 609 elongata 609 pusilla , 622,647 Sycalis columbiana 209 minor 209 Sylvia chivi 207 Symphyllia n. sp 599 Synallaxis albescens albigularis 203 albigularis 203 alopecias 202 cinnamomea 203 Synapterpes sp 646 Synedra 581 Synema nigromaculata 179 parvula 179 Synemosyna formica 187 Syngnathus fuscus 64 Synlestes 245, 258, 262 %strophia 622 eatoni 622,631 helicycloides 631 stenogyra 631 Tachyphonus rufus 210 surinamus 211 Taenia echinococcus 149 marginata 149, 150 Taeniophora 91 dentipes 91 femorata 91 geniculata 91 Tamatia bicincta 199 Tanagra desmerestii 190, 210 melanoptera 210 rufa : 210 sclateri .' 210 trinitatis 190,210 Tangaridae 210 Tarsophlebia 252-254 1 Tarsophlebia eximia 248-253 ; westwoodi 252 I Tautoga onitis 65 Tegenaria emertoni 180 nana 181 Tegula fasciata 496 ! Teiidffi 170,173 Teinostoma bartschi 26 I hondurasensis 26, 27 schumoi 25, 26 solida 26 Tellina (Eurytellina) alternata 497 (Cyclotellina) f aust a 497 (Angulus) promera 497 (Angulus) versicolor 497 I Teminius conjuncta 676 Teratodes depressus 183 Terebra protexta 498 spei 494,497 Teretulus 60 Testudinida?.. 173 Testudo denticulata 173 Tetana grisea 353 Tet anorhynchus borellii 306 Tetragnatha alba 678 antillana 678 I guatemalensis 678 ! mexicana 678 tenuissima 678 Tetragonopterinae 537, 564 : alleni 540 Tetraplodon ambiguus 664 quadrilaterum 664 Tetrodontid* 579 Tettigidea annulipes 304 arcuata 306 chichimeca 304 multicostata 306 paratecta 304 prorsa 304 scudderi 304 tecta , 304 Tettigonidse 353 Tettix lobulata 304 Thalurania refulgens 201 Thamnophilus canadensis 202 punctatus 202 Thamnoscirtus amoenus 379 cicindeloides 379 viridicatus 379 Thaumatias chionopectus 201 Thaumatoneura, 221, 224, 233-237, 249, 253, 255, 257, 261, 263, 264 inopinata 221, 233, 250 pellucida 221, 233, 250 Thaumatosoma 29, 35 Theocly tes surinamensis 299 Theridion biolleyi 678 Theridium glaucescens 182 Thespis livida 295 Thesprotia vidua 296 740 PROCEEDINGS OF THE ACADEMY OF [Dec.,. Thiodina retarius 680 Thoracocharax 560 Thore 255 Thraupis episcopus sclateri 210 palmarum melanoptera 210 Thryophilus rufalbus castano- notus 190,206 Thryothorus rut ilus. 206 Thysanophora 622 cffica 622,632 Tibellus 181 Tigrisoma lineatum 193 Tinamida; 190 Tinus nigi-inus 680 Titiotus californicus 181 TitjTa cayana 205 Tmarus floridensis 179 griseus 1 79 Todirostrum cinereum 204 maculatum 205 Todus cinereus 204 maculatus 205 Tomigerus 622,688 clausus 622, 642, 643, 690 cumingii 643 Iffivis 622, 642, 643 pilsbryi 622,643 rochai 622, 642, 643 Tonicia schrammi 496 Tornatina canaliculata 494 Toxopterus miniatus 317 Tramea 255 Trapidonotus Isevipes..... -. 330 rosulentus 88 Trechalea convexa 679 Trichocolletes 28 Tricocephalus 148 affinis 1 48 crenatus 1 48 depressicollis 148 dispar 147,148 felis 148 lemuris 147 palaeformis 147 serratus 148 unguiculatus 148 Trigona 29 Trimerotropis pallidipennis 322 vinculata 322 Tringa macularia 192 Trirhinopholis styani 213 Tritonofusus hypolispus 502 Trivia pediciilus 495 Trochilida; 200 Trochilus ensipennis 200 fimbriatvis 201 gramineus 201 hirsutus 200 mellivorus 201 nigricoUis 201 notatus 202 I Trochilus superbus Trochosmilia n. sp Troglodytes musculus clarus Troglodytidae Trogon viridis Trogonidse Trombidium furcipes Tropidacris cardinalis cristata dux latreillei Tropidocerca 1 42, bispinosa certa contorta 141 , 1 46, fississpini globosa gynsecophila inermis paradoxa tenuis Tropidurus torquatus Tropinotus angulatus discoideus Tropisuris 142, Truxalis brevicornis obscura Tupinambis nigropunctatus teguexin Turbo crenulatus Turdida; Turdus atricapilla phseopygoides surinamus Turnerella Turritella 590, forrestii 603, Tutelina elegans Tylosurus marinus Tyrannidaj Tyrannus dominicensis melancholicus satrapa Tyttocharax madeirse 563, 202 599 207 206 198 198 684 Uncancylus Urophycis regius Uropoda clavisetosa bisetosa Urosalpinx sp Urotheca later istriga... Urubitinga anthracina urubitinga 89 88 146 147 147 150 147 147 147 147 147 147 172 330 330 146 313. 336 173 173 495 207 207 207 211 29' 600 612. 187 63 203 205 205 563 564 671 65 685 685 495 168 195 195 Vellea cruenta 365 Vermetus nigricans 495 Vilerna 98 rugulosa 98 Vireo chivi 207 Vireonidge 207 1913. NATURAL SCIENCES OF PHILADELPHIA. 741 Vitrinella helicoidea 24 hemphilli 24 megastoma 24 multistriata 24 tryoni 24 Volatinia j acarini splendens 208 Voluta alfaroi 495 Vultur papa 194 Wahnesia ! 244, 260, 261 Wala mitrata 187 Walterinnesia segyptica .508, 509 Xanthornus decumanus 211 Xanthostoma 180 Xerarionta 382 Xiphicera viridicata 331 Xiphidium longipes 375 Xiphophasma 301 missionum 302 Xylocopa 29 Xyrauchen texanus 54 uncomphagre 55 Xyrocharax 673 Xysticus benefactor 178 discursans ,.... 177 emertoni 178 Xysticus gulosus 178, 183 hamatus 178 lenis 178 limbatus 177 locuples 178 luctans 183 punctatus 178 j 4-lineatus 178 stomachosus 178, 179, 183 striatus 178 variabilis 178, 179 I Yoldia perprotracta 496 j Zimiris 676 Zimiromus , 676 fragilis 676 Zoniopoda cruentata 334 iheringi 333 omnicolor 334 tarsata 334 Zonitoides 622 parana 622, 632 Zoolea lobipes 299 Zygoclistron 96 acutum 96 superbum 96,98 742 PROCEEDINGS OF THE ACADEMY OF [Dec. GENERAL INDEX. 1913. Additions to Museum, 712. Aebley, Jacob, Janitor, 711. Allen, Ada, Aid in Herbarium, 711. Ashton, Thomas G., M.D., Member of Council, 711. Avebury, Lord, announcement of death of, 515. Baird, Lucy H., announcement of death of, 515. Baker, Fred. The land and fresh water moUusks of the Stanford Expedition to Brazil (Plates XXI- XXVII), 515, 618. Banks, Nathan. Notes on the types of some American spiders in Euro- pean collections (Plates XI, XII, XIII), 152, 177. Notes on some Costa Ricau Arachnida (Plates XXVIII-XXX), 580, 676. Balzer, Armin, announcement of death of, 580. Barbour, Thomas. Reptiles collected by the Yale Expedition of 1912 (Plate XVII), 505, 515. Berry, S. Stillman. Notes on some West American Cephalopods, 73, 81. Biddle, Thomas, M.D. Committee on library, 2. Thanks to, 2. Mem- ber of Council, 711. Bilgram, Hugo. The critical point in Uquids, 582. Billings, .lohn S., M.D., announcement of death of, 152. Biological and Microscopical Section, report of, 704. Blanchard, Anna, announcement of death of, 515. Botanical Section, report of, 707. Boyer, Charles S. On the diatoms of Philadelphia, 581. Report of Bio- logical and Microscopical Section, 704. Braun, Annette Frances. Evolution of" the color pattern in the microlepi- dopterous genus LithocoUetis, 515. Brown, Amos P. Variation in two species of Lucidella from Jamaica (Plate I), 1, 3. Notes on the geology of the Island of Antigua (Plates XVIII-XX), 584. Brown, Amos P., and Henry A. Pilsbry. Two collections of Pleistocene fossils from the Isthmus of Panama, 493, 515. Brown, Stewardson, report of Botanical Section, 707. Assistant to Curators, 711. Recorder of Ornithological Section, 710. Assistant to Curators, 711. Cadwalader, John. Committee on Finance, 1. Vice-President of Academy, 710. Calvert, Philip P., Ph.D. The fossil Odonate Phenacolestes, with a dis- cussion of the venation of the legion Podagrion Selys (Plate XIV), 219, 225. Member of Council, 711. Campion, Herbert. The antenodal reticulation of the wings of agrionine dragonflies, 219, 220. Centenary Committee, thanks to, 617. Chamberlain, Rev. Leander T., an- nouncement of death of, 219. Clappier, Charles, Janitor, 711. Cocchi, Igino, announcement of death of, 515. Cockerell, T. D. A. Some Australian bees, 28, 81. CoUett, Robert, announcement of death of, 81. Collins, Alfred M., elected a member, 2. Conklin, Edwin G., Vice-President of Academy, 710. Corresponding Secretary, report of, 695. Corson, Joseph H., announcement of death of, 515. Council for 1914, 711. Cramp, Charles H., announcement of death of, 515. Crawford, Joseph, Vice-Director of Botanical Section, 708. Crease, Orlando, announcement of death of, 515. Cresson, Ezra T., Treasurer and member of Publication Committee of Entomological Section, 706. 1913.1 NATURAL SCIENCES OF PHILADELPHIA. 743 Cresson, Ezra T., Jr., Member of Publication Committee of the Ento- mological Section, 706. Assistant ' to Cm-ators, 711. Curators, report of, 699. Curtin, Roland G., M.D., announce- ment of death of, 81. Cushing, Herbert H., elected a mem- ber, .580. Dall, WilHam Healey. New species of the genus Mohnia from the North , Pacific, 501, 51.5. Davis, William B., Treasurer of Mineralogical and Geological Sec- tion, 708. Department of MoUusca, report of, 702. Dixon, Edwin S., Committee on Finance, 1. Member of Council, 710. Dixon, Samuel G., M.D., LL.D. Report of Curators, 702. President of Academy, 710. Curator of Academy, 710. Member of Council, 711. Entomological Section, report of, 704. Fenton, Thomas H., M.D., Committee on Library, 2. Finance, Committee on, 1. Fowler, Henry W. Notes on catos- tomoid fishes, 45, 81. Notes on the fishes of the Chincoteague region of Virginia, 61, 81. Some type-speci- I mens of the American cyprinoid fishes of the genus Rutilus, 66, 81. Amphibians and reptiles from Ecua- dor, Venezuela, and Yucatan (Plates V-X), 152, 153. Fishes from the Madeira River, Brazil, 515, 517. Curimatus spilurus Cope, a wrongly identified Characin, 673. Assistant to Curators, 711. Fox, Henry. Data on the orthopteran faunistics of eastern Pennsylvania and southern New Jersey, 617. Fox, WiUiam J., Committee on Pub- lications, 2. Assistant Librarian 710. Gorgas, Col. W. C, elected a Cor- respondent, 81. Grant, WiUiam S., announcement of death of, 515. Heath, Harold. The anatomy of two Brazilian land snails, Anostoma depressum and Tomigerus clausus (Plate XXXI), 617, 688. Hebard, Morgan. A revision of the species of the genus Nemobius (Orthoptera, Gryllidje) found in North America, north of the Isthmus i of Panama, 394, 515. Heckler, Adam, Janitor, 711. Heckler, Daniel, Janitor, 711. Horstman, Walter, Committee on Accounts, 710. Hughes, William E., M.D., on a winter exploration of Bolivia and Peru (no abstract), 219. Member of Council, 711. Index to Genera, 721. Instruction and Lectm-es, Committee on, 2. Jayne, Horace F., announcement of death of, 515. Keeley, Frank J., Committee on Librarj^, 2. Curator of William S. Vaux collections, 2. Report of Curator of William S. Vaux Col- lections, 703. Member of Council, 711. Curator of Biological and Microscopical Section, 704. Vice- Director of Mineralogical and Geo- logical Section, 706. Member of Council, 711. KeUy, Philip P., announcement of death of, 515. Koenig, George A., announcement of death of, 1 . Krumbhaar, Edward B., elected a member, 516. Laurent, Philip, Director of Entomo- logical Section, 706. LeConte, Robert G., M.D., Member of Council, 710. Librarian, report of, 696. Library, Committee on, 2. Lyman, Benjamin Smith, Dii-ector of the Mineralogical and Geological Section, 708. McCadden, David, Taxidermist, 711. McClellan, George, M.D., announce- ment of death of, 152. McClung, Clarence E., Ph.D., elected a member, 516. Macfarlane, John M., M.D., on the origin and distribution of animals and plants (no abstract), 152. Mears, J. Ewing, M.D., elected a member, 580. Mineralogical and ■ Geological Section, report of, 708. Moore, Clarence B. Some aboriginal sites in Louisiana and Arkansas, 152. Moore, J. Percy, report of Correspond- ing Secretary, 695. Corresponding Secretary of Academy, 710. Mem- ber of Council, 711. Morris, Charles, Committee on In- struction and Lectures, 2. Com- mittee on Accounts, 710. Member of Council, 711. '44 PROCEEDINGS OF THE ACADEMY OF [Dec, ^Morris, Effingham B., Committee on Finance, 1. Morris, George S., Committee on Instruction and Lectures, 2. Vice- Director of Ornithological Section, 710. Member of Council, 710. Morris, J. Cheston, Director of Bio- logical and Microscopical Section, 704. [Morris, Theodore W., announcement of death of, 81. Nolan, Edward J., M.D., Committee on Publications, 2. Report of Recording Secretary, 693. Report of Librarian, 096. Librarian and Recording Secretary of Academy, 710. Member of Council, 711. Officers, Councillors, etc., 1914, 710. Ornithological Section, report of, 709. Palmer, T. Chalkley. The collecting and preparation of diatoms, 580. Vice-Director of Biological and Mi- croscopical Section, 704. Pennell, Francis W. Further notes on the flora of the Conowingo Barrens of Southeastern Pennsylvania, 1. Penrose, Charles B., M.D., Member of Council, 711. Penrose, R. A. F., Jr., on the Twelfth International Congress (no abstract), 617. Pilsbry, Henry, Sc.D. Committee on Publications, 2. Committee on Instruction and Lectures, 2. The Helices of Lower California (Plates XV, XVI), 219, 380. Report of the Department of Mollusca, 702. Cura- tor of Academy, 710. Member of Council, 711. Publications, Committee on, 2. Recording Secretary, report of, 693. Rehn, James A. G. Description and records of South American Orthop- tera, with description of a new species from Clarion Island, 81, 82. A contribution to a knowledge of the Orthoptera of Argentina, 219, 273. Secretary of Entomological Section, 706. Assistant tQ Curators, 711. Rehn, James A. G., and Morgan Hebard. A study of the species of the genus Dichopetala (Orthoptera, Tettigoniidaj), 515. On the Orthop- tera found on the Florida Keys and in extreme southern Plorida, II, 580. Report of Biological and Microscopical Section, 704. Report of the Botanical Section, 707. Report of Corresponding Secretary, 695. Report of the Curators, 699. Report of the Department of Mollusca, 702. Report of Entomological Section, 704. Report of Librarian, 696. Report of Mineralogical and Geological Section, 708. Report of Ornithological Section, 709. Report of Recording Secretary, 693. Report on the William S. Vaux Collections, 703. I Reports of Sections, 704. I Rhoads, Samuel M., Committee on Accounts, 710. Rothermel, John G., Committee on Accounts, 710. Scull, E. Marshall, elected a member, 2. Scattergood, J. Henry, elected a member, 2. Schumo, Silas L., Corresponding Secre- tary of Biological and Microscopical Section, 704. Recorder and Secre- tary of the Mineralogical and Geo- logical Section, 708. Sclater, Philip L., announcement of death of, 515. Shryock, William A., Secretary of Ornithological Section, 710. Skinner, Henry, M.D., Committee on Publications, 2. Report of Ento- mological Section, 704. Conservator and Recorder of Entomological Sec- tion, 706. Member of Council, 711. Smith, Benjamin H., Director of Botanical Section, 708. ] Spaeth, R. A. The distribution of the genus Cyclops in the vicinity of Haverford, Pennsylvania, 1. Stamp, Harvey, M.D., elected a member, 580. Standing Committees, 1. Steinbach, Lewis W., announcement of death of, 81. Stewart, Thomas S., M.D., Treasurer ! of Biological and Microscopical Section, 704. Committee on Accounts, 710. Stone, Witmer, Sc.D., Committee on Publications, 2. Committee on Instruction and Lectures, 2. On a collection of birds obtained by the Francis E. Bond Expedition to the Orinoco Delta, 152, 189. Report of Ornithological Section, -710. ^ Con- servator of Ornithological Section, 710. Curator of Academy, 710. Member of Council, 711. Tague, James, Janitor, 711. Thompson, Edward H., on the ancient t ruins of Yucatan and its modern I inhabitants (no abstract), 81. 1913.] NATURAL SCIENCES OF PHILADELPHIA. 745 Thomson, J. C, M.D. Oxyrhopus trigeminus Dum. et Bibr. the type of Erythroxyrhopus gen. nov., 1, 78. Notes on serpents in the family Colubridae, 152, 213. Contributions to the synonymy of serpents in the family Elapidaj, 508, 515. Contri- bution to the anatomy of the Ilysiida;, 580. Trotter, Spencer, M.D., Director of Ornithological Section, 710. Mem- ber of Council, 711. Tucker, Henry, M.D., Committee on Library, 2. Committee on Instruc- tion and Lectures, 2. Curator of Academy, 710. Member of Council, 711. Uhler, Philip R., announcement of death of, 580. Vanatta, E. G. Descriptions of new species of marine shells (Plate II), 22, 81. Assistant to Curators, 711. Van Sickle, W. H., on labels for Micro- scopic slides (no abstract), 583. Vaux, George, Jr., Committee on Finance, 1. Committee on Library, 2. Solicitor of Academy, 2. Con- servator of Mineralogical and Geo- logical Section, 708. Treasurer of Academy, 710. Member 6i Council, 711. Wallace, Alfred Russell, announcement of death of, 617. Wardle, H. Newell, on the miniature temples and temple pjTamids of the ancient Mexicans (no abstract), 219. Assistant in archaeology, 711. Weidman, F. D. A study of the metazoan parasites found in the Philadelphia Zoological Garden (Plate IV), 2, 81, 126. Wenzel, Henry W., Vice-Director of Entomological Section, 706. Wherry, Edgar T. North border relations of the Triassic in Pennsyl- vania (Plate III), 81, 114. On the Twelfth International Geological Congress (no abstract), 617. Willcox, Jos., Custodian of Isaac Lea Collections, 2. Wilde, Furman S., Assistant in Library, 711. Williamson, Charles S., Recorder of Botanical Section, 708. Winsor, James D., Committee on Finance, 1. 49 PROC. ACAD. NAT. SCI. PHILA. 1913. PLATE XVII. BARBOUR : DREPANODON EATONII, D. ERDISII. PROC. ACAD. NAT. SCI. PHILA. 1913. PLATE XVIII. A. P. BROWN: GEOLOGY OF ANTIGUA. PROC. ACAD. NAT. SCI. PHILA. 1913. A. P. BROWN: GEOLOGY OF ANTIGUA, PROC. ACAD. NAT. SCI. PHILA. 1913. PLATE XX. J^^" A. P. BROWN, GEOLOGY OF ANTIGUA. PROC. ACAD. NAT. SCI. PHILA. 1913. PLATE XXI. BAKER: MOLLUSKS OF BRAZIL, PROC. ACAD. NAT. SCI. PHILA. 19-13. PLATE XXII. BAKER: MOLLUSKS OF BRAZIL. PROC. ACAD. NAT. SCI. PHILA. 1913. PLATE XXIII. BAKER: MOLLUSKS OF BRAZIL. PROC. ACAD. NAT. SCI. PHILA. 1913. PLATE XXIV. BAKER: MOLLUSKS OF BRAZIL. PROC. ACAD. NAT. SCI. PHlLA. 1913. PLATE XXV. BAKER: MOLLUSKS OF BRAZIL. PROC. ACAD. NAT. SCI. PHlLA. 1913. PLATE XXVI. BAKER: MOLLUSKS OF BRAZIL. PROC. ACAD. NAT. SCI. PHILA. 1913. PLATE XXVII. BAKER: MOLLUSKS OF BRAZIL. PROC. ACAD. NAT. SCI. PHILA. 191:^. PLATE XXVIII. BANKS: COSTA RICA ARACHNIDA. PROC. ACAD. NAT. SCI. PHILA. 1913. PLATE XXIX. BANKS: COSTA RICA ARACHNIDA. PROC. ACAD. NAT. SCI. PHILA. 1913. PLATE XXX. BANKS: COSTA RICA ARACHNIDA. PROC. ACAD. NAT. SCI. PHILA. 1913. PLATE XXXI. HEATH: ANOSTOMA DEPRESSUM. TOMIGERUS CLAUSUS. lilH IflSE E