Vol. XIV January, 1938 No. 1 THE Pan-Pacific Entomologist Published by the Pacific Coast Entomological Society in co-operation with The California Academy of Sciences CONTENTS VAN DYKE, NEW SPECIES OF RHYNCHOPHORA FROM WESTERN NORTH AMERICA 1 CHAMBERLIN, SIX NEW SPECIES OF CHRYSOBOTHRIS FROM THE WESTERN UNITED STATES 10 STONE, AN OCCURRENCE OF PROTHETELY IN MELANOTUS LON- GULUS - 16 BAILEY, A REDESCRIPTION OF TWO SPECIES OF CALIFORNIA THRIPS 19 TIMBERLAKE, NEW SPECIES OF ANDRENA FROM CALIFORNIA 24 SWENK, TWO NEW AMERICAN BUMBLEBEES 29 BLAISDELL, A NEW SPECIES OF SITONA FROM SAN MIGUEL ISLAND 31 VAN DUZEE, GENUS DICTYDEA UHLER.. 33 MICHENER, AMERICAN BEES OF THE GENUS CHELOSTOMA 36 PROCEEDINGS OF THE PACIFIC COAST ENTOMOLOGICAL SOCIETY 46 San Francisco, California 1938 THE PAN-PACIFIC ENTOMOLOGIST Published quarterly in January, April, July and October by the Pacific Coast Entomological Society in co-operation with the California Academy of Sciences. 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Subscribers failing to receive their numbers will please notify the editor at as early a date as possible. ★ ★ THE PACIFIC COAST ENTOMOLOGICAL SOCIETY Officers President C. D. Duncan Vice-President R. L. Usinger Secretary-Treasurer E. G. Linsley Publication Committee Editor E. P. Van Duzee Associate Editor E. C. Van Dyke Treasurer E. R. Leach Business Manager R. L. Usinger 1938 1939 1940 G. F. Ferris E. G. Linsley C. D. Duncan F. E. Blaisdell F. X. Williams J. A. Comstock E. O. Essig, Chairman S. F. Bailey H. H. Keifer ★ ★ Published at the California Academy of Sciences, Golden Gate Park, San Francisco, California. Entered as second class matter, February 10, 1925, at the postoffice at San Francisco, California, under Act of August 24, 1912. The Pan-Pacific Entomologist Vol. XIV, No. 1 January, 1938 NEW SPECIES OF RHYNCHOPHORA (COLEOPTERA) FROM WESTERN NORTH AMERICA BY EDWIN C. VAN DYKE University of California, Berkeley, California Genus Paracimbocera Van Dyke, new genus Of moderate size, elongate, more or less densely clothed with closely appressed scales and sparsely pilose. Head with trans- verse impression at base of rostrum; eyes of moderate size, coarsely granular, transverse, but not projecting beyond side margins of head; rostrum slightly longer than head, narrower, gradually dilated from frontal impression, feebly and broadly impressed above, arcuate as seen in profile and with a feeble triangular impression at middle of front margin, nasal plate obsolete; scrobes lateral, feebly arcuate, directed towards eyes but shallow, dilated and poorly defined behind; antennse robust, scape moderately clavate, reaching front margin of eye, funicle considerably longer, first segment twice as long as broad, second to sixth moniliform, seventh transverse, rather close to club and of similar vestiture, club arcuminate-cordate. Prothorax slightly broader than long with moderately arcuate sides, a feeble longitudinal impression at middle of disk, sculpturing concealed by scaly vestiture, and with ocular lobes and fimbriee well marked. Elytra elliptical, with humeral angles obliterated, finely striato-punctate and with scattered punctures on the intervals. Beneath with first and sec- ond ventral segments broad, the suture between arcuate. Legs stout, tibias but slightly expanded apically, corbels open, anterior and middle mucronate within at apices, third tarsal segment slightly wider than second, bilobed and with a small papillose tuft at the apex of each lobe, segments one to three laterally setose beneath and sparsely squamose between the rows of setae, claws free. Genotype: Paracimbocera atra, new species. This genus is established for the reception of another of those semidesert weevils which belong near Cimbocera because the scrobes are feebly inferior and poorly defined behind, the seventh segment of the antennal funicle near the club an,d sim- ilarly clothed with fine sericeous pile, and the soles of the tarsi 2 THE pan-pacific ENTOMOLOGIST [yOL. XIV, NO. 1 setose and squamose, not papillose. From Cimbocera it differs by having the third tarsal segment evidently broader than sec- ond, lobed and papillose beneath at apices of lobes and by having the postocular lobes of the prothorax well developed. From Miloderes, it differs by having a pronounced transverse impression in front of the eyes, seventh funicular segment dis- tinct from club, and third tarsal segment less broad and less papillose beneath; from Miloderoides Van Dyke by having the antennal scrobes less sharply defined, the postocular lobes prom- inent whereas absent in the other, and the third tarsal segment less broad and with a much more reduced papillose pad beneath; and from Cryptolepidus Van Dyke, which closely resembles Miloderoides, by having well developed postocular fimbriae and less expanded third tarsal segment which is also entirely setose in Cryptolepidus. In general appearance and many major fea- tures Paracimbocera greatly resembles some of the black species of Dyslobus where I was at first inclinad to place it until my attention was called to the tarsi by Mr. P. C. Ting. Paracimbocera atra Van Dyke, new species Rather small, elongate, black; head, pronotum and elytra densely clothed with black scales, those of head and pronotum some- what elevated, producing a granular effect, while those of the elytra are flatter and more closely attached; the head, prothorax and basal portion of elytra also provided with a few short, scattered, much inclined scales; the apical portion; of the elytra with long pile, denser on the declivity and inclined to be somewhat fulvous, while the legs and underside of body are clothed with scales that appear a bit cinereous, and with a few' short, much scattered hairs. Head rather coarsely, densely punctured with the punctures in most cases concealed by the scales; front convex, separated from the rostrum by a deep, transverse impression; rostrum but little longer than the head, broad, gradually dilated forwards, almost as broad in front as it is long, quite arcuate as seen from the sides and with a slight impression above the eyes; eyes flattened, hardly projecting beyond side margin of head; antennal scape reaching front margin of eyes, first and second funicular seg- ments elongate, the following short and transverse, club elongate- cordate. Prothorax about a fifth broader than long; sides arcuate, feebly constricted near base and apex; post-ocular lobes and fimbriae well developed ; disk evenly clothed with scales, not rugose, feebly longitudinally impressed at middle with a feeble impres- sion each side behind. Elytra ellipitical, three-eighths longer than January, 1938] VAN DYKE— NEW RHYNCHOPHORA 3 broad and about two and a half times as long as prothorax; humeral angles absent; sides evenly arcuate; striae fine with mod- erate sized, well spaced punctures; intervals flat, broad, with a double series of irregularly placed punctures; declivity vertical. Beneath rather coarsely punctured but punctures concealed by scales, the first ventral segment deeply, broadly impressed at middle, last ventral non-carinate ; anterior tibiae denticulate within and feebly bent towards apex. Length 7.5 mm., breadth 3 mm. Holotype male (No. 4555 Mus. C. A. S. Ent.), a unique col- lected by myself in the Charleston Mts., near Las Vegas, Nevada, May 24, 1935. Dyslobus remotus Van Dyke, new species Short, robust, piceous, densely clothed above with brown scales of various shades, arranged in a tessellated manner, and beneath with lighter colored and somewhat more elongate scales, also a few stellate scales on the meso- and metathorax beneath, and in addition rather densely covered above with semierect brown pile, with a lighter, sparser and more inclined pile beneath. Head somewhat flattened in front; finely, sparsely punctured but punc- tures mostly concealed by the scales; rostrum twice as long as wide, separated from head by a shallow, transverse impression and' feebly narrowed from impression to the widely dilated alse at apex; eyes moderate in size, broadly elliptical; antennal scape reaching hind margin of eyes; first and second funicular seg- ments considerably longer than broad, 3-6 moniliform, the seventh transverse; club cordiform, about two and a half times as long as broad. Prothorax barely broader than long, apex over one- third narrower than base, sides, well rounded, feebly constricted before apex, post-ocular lobes prominent, disk convex, densely squamose and moderately pilose. Elytra almost two-fifths longer than broad, two and a half times as long as prothorax and a third broader; base transverse with humeral angles small, right angled, the sides feebly sinuate just back of base, thence gradually arcuate to apex ; disk convex, evenly arcuate to summit of declivity, thence almost vertical; striae moderately impressed; strial punc- tures rather coarse, well spaced and each with a short, hooked scale arising from it; intervals feebly convex, broad, of about equal width, densely squamose, with pile arranged in irregular rows. Beneath rather coarsely, not closely punctured, the last ventral obtusely carinate towards the apex. Anterior tibias denti- culate within and somewhat bent towards apex. Length 7 mm., breadth 3 mm. Holotype (No. 4554 Mus. C. A. S. Ent.) and one paratype from Bone Springs, Blue Mts., Oregon, 5000 ft. alt., collected 4 THE PAN-pacific entomologist [vol. xiv, no. 1 June 27, 1935, by H. P. Lanchester and very kindly referred to me for description by Mont. A. Cazier. This species is very close to argillous Van Dyke^ but differs by being in general a bit smaller, proportionately narrower, considerably flatter, with sparser, coarser and shorter pile; by having the elytral striae rather deeply impressed and the intervals somewhat convex, whereas the striae are fine an,d the intervals flat in argillous, and by having the strial punctures each sup- porting a small hooked scale instead of a fine hair as in the other. Nemocestes expansus Van Dyke, new species Small, robust, brown, densely clothed with light and dark brown scales and with a very short, sparse, semierect pile, an- tennae rufous. Head more or less flattened, feebly concave between the eyes; rostrum slightly longer than head, with sides straight and almost parallel; eyes moderately convex; scape of antennae reaching be- hind front margin of prothorax; funicular segments l-2i elongate; 3-7 moniliform, barely longer than broad. Prothorax about one- thirdl broader than long, with sides divergent forwards from base almost to middle where they are rounded, then sinuate and con- vergent forwards to apex; disk with punctures concealed by scales; setae short and sparse. Elytra almost a third longer than broad, trapezoidal; base transverse with rounded humeri; sides almost straight and divergent to apex; disk moderately convex, with striae finely impressed and finely punctured, first interval widen- ing rapidly towards center then narrowing apically but wider apically than basally; intervals 2-6 somewhat convex, especially towards declivity, the fifth more distinctly so; seventh forming the sides of the elytra, carinate in front and expanded behind and, as seen from beneath, a lobe-like process broadly overhanging like the eaves of a house; intervals 8-10 flattened and obliquely placed, the summit of the declivity overhanging; setae short and more or less hooked. Beneath sparsely squamose and pilose and but moderately punctate: Length 4.5 mm., breadth 2.35 mm. Holotype (No. 4556 Mus. C. A. S. Ent.,), a unique collected by myself at Lake Pilarcitas, San Mateo Co., Calif., April 26, 1936. This odd looking species would run in my key® to a species close to koeheli but would differ from that, as from all other species of the genus, by the greatly expanded and overhanging ^ Pan-Pac. Ent., Vol. XI, Jan. 1935, pp. 7-8. ® Pan-Pac. Ent., Vol. XII, Jan. 1936, pp. 24-25. January, 1938] VAN DYKE— NEW RHYNCHOPHORA 5 seventh elytral intervals and the general trapezoidal shape. Geographically it occurs midway in the coastal ranges of Cali- fornia; between the territory occupied by tuber culatus, the Mt. Tamalpais region north of San Francisco, and that by koeheli, the Santa Cruz mountains. Together the three form a peculiar group. Genus Thysanocorynus Van Dyke, new genus Short, robust ; entire surface densely clothed with closely appressed scales, upper and under surface with fine, short setae, rather sparsely placed; the mouthparts, antennal scape, sides of prothorax, elytra and femora ornamented with long, silky pile, and the legs fossorial. Head short, stout, very broad between the eyes, five or six times the breadth of eyes, front and dorsal sur- face of rostrum flattened and on same plane without line of de- marcation between; eyes moderately convex; rostrum broad at base, gradually narrowed forwards from head and short, though slightly longer than the head itself and, with a triangular emargi- nation in front; scrobes lateral, feebly arcuate, deep in front, shallow and broad behind, squamose, and directed towards center of eyes; antennae rather short and not particularly robust; scape curved, gradually clavate and reaching beyond front margin of prothorax, conspicuously fringed with long pile which is twice as long in front as behind; funicle 7-segmented, short, as a whole only about three-fourths the length of the scape; first segment robust, clavate, about three times as long as broad; second as long as first but narrow and subcylindrical ; 3-7 short, gradually broader outwardly, 6-7 transverse; club cordate and clothed with golden silky pile. Prothorax transverse, sides arcuate, post-ocular lobes and fimbriae absent. Elytra broadly oval, with a narrow basal margin; striae finely impressed and finely, closely punctured; inter- vals flat, with irregularly dispersed punctures from which the short setae arise. Legs stout; tibiae straight, dilated outwardly at apices, transversely on front legs and very obliquely on middle and hind legs, the process on the hind legs in the form of a tooth above the apex of the tibiae; corbels open and squamose within, third tarsal segment dilated and lobed; tarsal claws connate at base, plantar surface of tarsi squamose and setose. First abdomi- nal suture arcuate, second segment equal to third and fourth combined. Genotype: Thysanocorynus aridus, new species. This peculiar genus will have to be placed in the tribe Tri- gonoscutini according to the characterization of that tribe, at least for the present. It, however, differs greatly from Tri- gonoscuta, the type genus, in regard to a number of fundamental 6 THE PAN-PACIFIC ENTOMOLOGIST [vOL. XIV, NO. 1 features sueh as the shape of the head, the rostrum being more or less eylindrieal and well demarked from the rest of the head in the latter; in regard to the antennas the seape of whieh is straight and the funiele long in Trigonoscuta; and in regard to the tarsi which are papillose beneath, with free tarsal claws in the latter. Thysanocorynus aridus Van Dyke, new species Scaly covering a pearly white, the scales somewhat imbri- cated; basal color of body black, antennal funiele, club and tarsi ferruginous. Head including rostrum about as long as broad and one- quarter longer than prothorax. Prothorax almost three-fifths broader at middle than long; base broadly, feebly arcuate or trans- verse; apex feebly emarginate, sides well rounded with long gray fimbriae placed somewhat obliquely laterally; disk densely squa- mose, when abraded showing a feebly rugose surface, with deep, well spaced punctures. Scutellum minute. Elytra two-ninths longer than broad, with base finely margined and perceptibly broader than base of pronotum ; sides obliquely divergent to humeri which are well rounded; thence almost straight and feebly con- vergent to beyond middle, from whence they are arcuate and con- vergent to apex; disk very convex, finely striate, with fine, closely placed strial punctures; intervals broad and flat, each with a series of irregular punctures from which arise short and erect setae, and densely squamose; the seventh and eighth or lateral intervals with long gray pubescence, longest and densest in front especially about the humeri; declivity abrupt, beneath squamose and setose much as above. Legs very hairy. Holotype male, length 6 mm., breadth 3 mm., allotype female, length 6.5 mm., breadth 3.5 mm. Holytype male (No. 4557), allotype female (No. 4558 Mus. C. A. S. Eiit.), and eleven paratypes, all collected at Cronise Lake (Mojave Desert), San Bernardino Co., Calif., Apr. 28, 1937, by P. C. Ting and M. Cazier, to whom I am indebted for the privi- lege of studying the specimens. The major portion of these will remain in the collectors’ hands. These beetles were beaten from creosote bushes, Larrea tridentata (DeC.) after dark. An imperfect specimen is in the collection of the California Academy of Sciences which was picked up near Needles, Calif., Dec. 3, 1931, by J. August Kusche. January, 1938] VAN DYKE— NEW RHYNCHOPHORA 7 This typically desert weevil is quite variable, the special tibial enlargements in particular often being mueh larger than normal and sometimes quite distorted or monstrous as is fre- quent in desert forms of life. Trichalophus seminudus Van Dyke, new species Rather large, elongate, black with short, much inclined scale- like setae scattered over the surface or assembleid into tufts whieh are generally disposed in a more or less transverse manner, especially apically. Head and rostrum coarsely, rather closely punctured, a shallow groove, gradually widened forwards, extending dorsally from between the eyes to the tip of the rostrum, the rostrum less than three times as long as broad, with well developed alae, and a small triangular depression at apex; eyes large but quite flattened; scrobe sharply excavated throughout; antennae with scape cla- vate, funicular segments 1-2 elongate, the second the longer, seg- ments 4-7 moniliform and feebly transverse, club cordate. Pro- thorax one-fourth broader than long, base transverse, apex emarginate at center, sides well rounded, sinuate near base and feebly constricted before apex; disk coarsely, closely granulose, the setae arising from the large punctures at the apices of the granules, with a narrow, median carina extending from near the base to beyond the middle. Scutellum generally concealed by a tuft of white scale-like hair. Elytra over three-eighths longer than broad and five-eighths longer than prothorax, with well rounded humeri; sides feebly arcuate at middle but well rounded towards apex; disk quite convex, declivity abrupt, with striae vaguely indicated but with strial punctures generally coarse, well spaced and quite evident, the general surface coarsely punctured and somewhat rugose. Beneath scabrous and finely, sparsely pubescent, fourth sternite without teeth on outer side. Legs finely, sparsely punctured and sparsely pubescent. Length 14-15 mm., breadth 5.5-6 mm. Holotype (No. 4559 C. A. S. Ent.) and numerous designated paratypes from a series of eighty-seven specimens collected by myself on the Cumbres Pass, Colorado, elevation 10,000 ft., June 20, 1935, and on other dates within a period of a week. This very distinct species stands out from other members of the genus because of its dull black color and nearly naked appearance, all other species in our fauna being rather densely clothed with scale-like pile. 8 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 Triglyphulus nevadensis Van Dyke, new species Large, elongate, sooty black, the elytra sparsely clothed with short, much inclined, black pile which is most evident on the elytral declivity. Head coarsely, closely punctured in front, more finely and closely punctured behind; rostrum not quite three times as long as broad, flattened above, coarsely punctured, trisulcate, the median groove deep and narrowing in front, extending from a deep fovea between the eyes to a point opposite the insertion of the antennae, the lateral, short and broader behind, extending from a point in front of the upper part of the eyes almost to the an- tennae, the apex depressed, with a broad V-shaped impression and apex acutely emarginate; eyes much flattened; antennal scrobes deep, extending behind straight and oblique to the lower margin of the eyes, scape feebly arcuate and gradually clavate, barely reaching anterior margin of eyes; funicular segments 1-2 elongate, about equal in length, third two-thirds length of second, 4-6 slightly longer than broad, seventh triangular and broader, club elongate- cordate. Prothorax about one-seventh broader than long, base transverse, apex feebly arcuate at middle; sides feebly sinuate behind, arcuate at middle and very feebly constricted before apex; disk coarsely, closely punctured, more or less rugose laterally and with an imperfect median carina not reaching either base or apex. Scutellum small, clothed with gray scales. Elytra one- third longer than broad, and three times as long as prothorax, with well rounded humeri; sides feebly arcuate to posterior third, then arcuate and convergent to apex; disk somewhat flattened, declivity well rounded at its apex, oblique posteriorly; strise vaguely indicated with strial punctures feebly marked medially where of moderate size and well spaced but obscure or obliterated at sides; general surface rather densely, finely punctured, finely rugose and opaque; setse short, black, much inclined and only conspicuous posteriorly especially on declivity where they are quite evident under magnification. Beneath finely, rather densely punctured, rugose and sparsely clothed with closely appressed gray pile. Legs rather coarsely, sparsely punctured and sparsely pilose, that of the femora gray, elsewhere black. Length 15 mm., breadth 6 mm. Holotype (No. 4560 Mus. C. A. S. Ent.), a unique in my collection collected by myself in the Charleston Mts., near Las Vegas, Nevaida, May 24, 1935. This fine species is of the same size and superficially very like Triglyphulus ater (Lee.), the type species and only other January, 1938] VAN DYKE— NEW RHYNCHOPHORA 9 one in the genus. It differs, however, by having the rostrum very much wider, nearly a third, flatter, with the lateral grooves set with black setae, not gray scales, the head broader and more densely punctured; prothorax more robust, disk not at all tuberculate as in ater but coarsely, densely punctured and rugose; the elytra finely, densely punctured and finely rugose, rather sparsely punctured and very coarsely rugose in ater, also rather definitely setose, especially apically, whereas but sparsely so in the other. T. ater seems to be confined to the higher altitudes of the Southern Cascades and Sierra Nevada. The new species is as indicated from a desert range some distance to the east. Entomology for Beginners How to Know the Insects, by H. E. Jaques. 140 pages, 254 figures. Planographed. Fourth printing, revised, January, 1938. Price postpaid, with spiral binding, $1.00, cloth binding, $1.80. The author, 709 N. Main, Mt. Pleasant, Iowa. Prof. Jaques has given us an ideal book for beginning Boy Scouts and earnest amateur entomologists of all ages. The cover is attractive or gaudy depending upon the point of view, the text is written in simple language, and very clever cartoons are inter- spersed throughout. These seemingly non-scientific embellish- ments add greatly to its usefulness and appeal. However, the real worth of the book lies in the absolute scientific accuracy and precision in even the most elementary statements, in the high order of illustrations of the common families of insects as well as of various stages in the life history of selected types, in the simplified key to the orders and commonest families of insects, and in an account of the methods of collecting and preserving insects, which, in our opinion, surpasses anything published previously — R. L. Usinger. Errata for Vol. XIH On page 99, line 10 from bottom, for Leptoscirtus read Litoscirtus. On page 153, line 1, for perichlarus read perichlorus Cock- erell. 10 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 SIX NEW SPECIES OF CHRYSOBOTHRIS (BUPRESTID^) FROM THE WESTERN UNITED STATES^ BYW. J. CHAMBERLIN, Ph.D. Oregon State College Chrysobothris planomarginata Chamberlin, new species Medium elongate, somewhat robust, shining bronze above and beneath, sparsely pilose, pile short, silvery, more dense on head and prosternum. Head moderately coarsely, closely punctate with greenish reflections, occipital line distinct and separating into two lines near apex forming a Y ; clypeus with a broad, fairly shallow, V-shaped emargination (Fig. 4) with sides rounded. An- tennae with, basal segment longer than next two, these greenish, segments 4 to 11 serrate and nearly black, greenish black in some specimens. Thorax about twice as wide as long, base slightly narrower than apex, widest in front of middle, sides evenly rounded, sur- face quite evidently convex, evenly punctate; median depressions faintly evident and a lateral fovea barely evident. Elytra slightly wider than thorax, parallel to one- third from base thence narrowing and each elytron separately rounded, with no sign of serrations, first costas entire, others interrupted. A distinct basal fovea and a less evident one near the humeral angle of each elytron, three or four small, densely punctate areas, much as in C. mali, are faintly evident on each elytron. Beneath slightly more shining; prosternum with well-developed lobe. Length 7.5 to 9 mm., width 3 to 3.5 mm. Male: Front brassy green; anterior tibiae arcuate and abruptly dilated at tip (Fig. 1), dilation about one-fifth length of tibia, basal half of dilation distinctly wider than apical half. Last ventral broadly, shallowly, semi-circularly emarginate; margins without serrations (Fig. 3). Female: Front bronze, more shining beneath than male, tibiae without apical dilation last ventral with a small shallow emargi- nation, margins entire (Fig. 2). Type and allotype from Bull Prairie, Lake County, Oregon. 7,000 feet elevation, July 24, in the collection of the writer. Other specimens from Grant County, Oregon. The general size and shape of this species is similar to C. contigua but the entire elytra and the last ventral without ser- rate margins places it into a group with C. hoharti Van Dyke^ ^ Published as Technical Paper No. 269 with the approval of the Director of the Oregon Experiment Station. A contribution from the Dept, of Entomology. ^ 1934, Van Dyke. New Species of Buprestidae, etc., Ent. News 46 : 89. January, 1938] CHAMBERLIN— NEW CHRYSOBOTHRIS 11 a group not recognized in Horn’s key^ The following should be added to Horn’s key on page 71 to take care of this new group : Lateral margin of last ventral segment not serrulate, rarely in- terrupted. Elytra acuminate at tip, Group VI Elytra obtuse and serrulate at tip Elytra with either costal or discal foveae, sometimes with both, Group VII Elytra without costae or discal foveae, Group VIII Elytra individually rounded and not serrulate; anterior tibiae of 6 dilated at tip, Group IX Chrysobothris scotti Chamberlin, new species Form of ciiprascens ; thorax only a little more shining than the body which is dull cupreo-aeneous ; antennae with segments I and II subequal, first three segments about two-fifths of the entire length, serrate from the fourth and only slightly more slender towards the tip. Front coppery, finely pubescent, callosities only faintly evident, entire front finely, closely punctate. Clypeus with a broad shallow crescent-like emargination (Fig. 8), somewhat as in speculifer. Thorax twice as wide as long, widest in front of middle, margins sinuate, constricted at base and at middle; disc sparsely punctate at middle, densely at sides; median de- pression absent or only vaguely marked; a faint indication of a depression each side. Elytra much wider than thorax, basal foveae prominent; first costa distinct except near base. Others inter- rupted but quite evident at basal third. Elytral margins serrate from the humeral angles to tips which are rounded. Beneath purplish, more shining, finely, closely punctate; pro- sternum cupreous, densely, coarsely punctate, without lobe. Last ventral $ (Fig. 7) broadly quite deeply emarginate; female with small rather deep semi-circular emargination (Fig. 6). Anterior tibiae of male (Fig. 5) with a very prominent obtuse tooth about one-third from apex. Type locality Taos, New Mexico, collected by F. T. Scott who has paratypes. Type in author’s collection. This species belongs to Group HI running to the igriicollis, speculifer divisions. It also has the general appearance of cuprascens. From the latter it is at once separable by the broadly emarginate clypeus; from speculifer it differs in the larger tooth one-third from apex of tibiae; from iguicollis it differs by the ® 1886, Horn. A Monograph of the Species of Chrysobothris, etc., Trans. Am. Ent. Soc. XIII: 65-124. 12 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 duller color, front bronze not green as in the latter; the very large tooth fully one-third from the tip, whereas in ignicollis the smaller tooth is about one-fifth from the tip of the tibiae. I take pleasure in dedicating this species to Mr. Scott who has turned up several new species of Buprestidae. Chrysobothris calcarata Chamberlin, new species Form elongate slender; color above olive bronze with faint coppery tinge, uniformly, sparsely covered with short silvery pile; head slightly convex, front of male a beautiful shining metallic green changing to bright copper at vertex, closely, uni- formly punctate, punctures so shallow as to give the front an almost smooth appearance. A coppery chevron is barely evident at the apex, and a green chevron is faintly evident near the middle of the front. Clypeus with a shallow, moderately broad emargi- nation (Fig. 11). Thorax much wider in front than at the base, disc scarcely interrupted though there is just an indication of a small depression near the center of each lateral margin. Sides uniformly acute. No median depressions, though there is a wide smooth line running from base almost one-half way to front and a similar line runs a short distance laterally from near the middle. Elytra noticeably wider than thorax gradually narrowing from the humeral angles to the apex, apices separately rounded and serrulate, elytra not entirely covering the abdomen. All costae entire but not prominent, a deep median fovea at the base of each elytron. Entire surface closely, finely, uniformly punctate. Prosternum prominently lobed, densely punctate with very fine pile, uniform bronze beneath. Abdominal segments smooth and shining along edges near center, laterally sparsely punctate and with fine white pile. Male: antennae bright green, coppery toward tip, serrate from fourth segment and slightly narrowing toward tip; first seg- ment as long as next two together. Anterior femur with long acute tooth, serrulate on outer margin. Anterior tibiae (Fig. 9) slightly arcuate and with a very small triangular tooth about one-fourth from apex. Last ventral segment with very wide, shallow emargination extending across the tip (Fig. 10). Holotype, 6 , Prescott, Arizona. Described from single male. Type in the author s collection. This species might be placed in Horn’s Group I since the disc of the thorax is practically uninterrupted yet because of the slight interruption I am inclined to place it in Group III. The shape of the last ventral segment and the clypeus will at once separate it from any other species in either group. January, 1938] Chamberlin— new chrysobothris 13 Chrysobothris bisinuata Chamberlin, new species Form like soror; color above dull bronze; head with a dis- tinct though very narrow impressed line running from base to front; the latter uniform bronze, sparsely, finely punctate, two callosities near middle. Clypeus with a fairly broad median shallow emargination (Fig. 13). Thorax more than twice as wide as long. Base of elytra only slightly wider than thorax, parallel on basal two-thirds, thence gradually narrowed; each elytron sep- arately rounded, faintly serrate. First costa entire except near tip and at the shallow basal foveee, others interrupted at each end as well as at points one-half and two-thirds from base; surface finely, not closely, punctate; tips not quite covering abdomen. Disc of thorax without fovese, callosities or median impression, sides regularly arcuate, width subequal at base and apex, sur- face finely, not closely, punctate. Entire upper surface with fine scattered pile. Beneath more coppery shining, sparsely, finely punctate; pro- sternum lobed, densely coarsely punctate; last ventral long, quite narrow and distinctly bisinuate at apex (Fig. 12). Described from a single female taken at Willows, California, by Dr. H. A. Scullen, July 2, 1935. Type in the author’s col- lection. This species falls in Group 1. The thorax with equal base and apex and the bisinuate last ventral will at once separate it from all other species in the group. Chrysobothris arizonica Chamberlin, new species Form narrow, long; color dark bronze. Head with occipital line faintly evident in male, lacking in female; front greenish, 6, or bronze, ? ; slightly convex, closely punctate, punctures very shallow, pile scarcely evident. Clypeus of the female as shown in figure 16. Clypeus of male with emargination slightly deeper and more angulate. Antennae of 6 greenish bronze more slender to tip; ? similar, color blackish purple. Thorax widest in front, sides slightly rounded, sharply con- stricted behind middle, disc uniformly closely, shallowly punctate. Elytra scarcely wider than thorax; two basal foveae on each elytron fairly large, moderately deep; a very shallow fovea at center of wing cover and another almost two-thirds from base, the latter quite inconspicuous. First and second costae evident on apical two- thirds, others scarcely evident; interspaces finely. 14 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 closely punctate; a very fine pubescence over upper surface; sides parallel for three-fifths from base, thence constricted. Elytral apices rounded, with serrate margins. Last dorsal segment par- tially exposed. Beneath purplish bronze in both sexes, a little more shining; prosternum lobed, with long silky hairs in the male, much less so in female. Last ventral of male with a very wide, rather shallow emargination, the bottom of which is quite straight (Fig. 15.) Last ventral of female serrate, rounded, with- out evident emargination. Anterior tibia of the male arcuate, and with a very small obtuse tooth quite near the tip (Fig. 14). Length of male 5.2 mm., width 1.6 mm.; of female 6.4 mm., width 2 mm. One pair from Coconino County, Arizona, taken many years ago. Type in author’s collection. This species falls in Group I near micromorpha and piuta. It differs from both by the more narrow form and dull color, the tibial spur and the shape of the last ventral segment. Chrysobothris grandis Chamberlin, new species Form and size of C. californica. Female length 17 mm., width 6.6 mm. Color above: elevated areas black and smooth, depressions cupreous-lilac; beneath more shining cupreous-lilac; front and antennae of the same color; front coarsely punctate in center, more finely at the sides. Two large irregular callosities as usual; clypeus broadly arcuately emarginate, sides straight (Fig. 18) ; antennae serrate from third segment; third segment subequal to the next two, more slender to the tip. Thorax more than twice as wide as long, narrowed at apex and slightly so at base (Fig. 19). Disc very rough, a median depression from apex to one-fourth from base, finely, closely punctate, a large irregular smooth, elevated area at either side for one-half the distance from the front. A smaller one replaces the median depression at the base. A similar small elevated area connecting with the base at one-fifth from the basal angles. Thorax reticulate laterally, with rather wide lines, depression covered with whitish bloom. Elytral sculpture very similar to californica except that the elevated area is less extensive and the depressions are more lilac than coppery, with a white bloom. Body beneath finely sparsely punctate, prosternum coarsely punc- tate and almost devoid of pubescence, very prominently lobed (finely densely punctate in californica). Last ventral slightly wider than long, margins coarsely serrate, except near the tip; emargination shallow as in figure 17. January, 1938] CHAMBERLIN— NEW CHRYSOBOTHRIS 15 This species falls in Horn’s group IV, and in general appearance would certainly be mistaken for C. californica but the prominently lobed prosternum at once separates it. In the group IV, with lobed prosternum, there is no species which Ekplanation of Plate Fig. 1. Front tibia of Chrysobothris planomarginata n. sp.; 2. Last ventral segment $ C. planomarginata; Fig. 3. Last ventral segment 6 C. planomarginata; Fig. 4. Clypeus male C. planomar- ginata; Fig. 5. Front tibia of C. scotti n. sp; Fig. 6. Last ventral segment $ C. scotti; Fig. 7. Last ventral segment 6 C. scotti; Fig. 8. Clypeus of 6 C. scotti; Fig. 9. Front tibia of $ C. calcarata n. sp.; Fig. 10. Last ventral segment 6 C. calcarata; Fig. 11. Clypeus 6 C. calcarata; Fig. 12. Last ventral segment $ C. bisin- utata n. sp.; Fig. 13. Clypeus $ C. bisinuata; Fig. 14. Front tibia 6C. arizonica n. sp.; Fig. 15. Last ventral 6 C. arizonica; Fig. 16. Clypeus $ C. arizonica; Fig. 17. Last ventral segment 6 C. grandis n. sp.; Fig. 18. Clypeus $ C. grandis; Fig. 19. Prothorax $ C. grandis. 16 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 approaches it in size except C. woodgatei C. & N., and this new species bears no resemblance to that species. Described from a single female, labeled Fall Mountain Look- out trail, Grant County, Oregon, 5200-6000 ft., July 14, 1936, H. A. Scullen Coll. Type in author’s collection. AN OCCURRENCE OF PROTHETELY IN THE WIREWORM MELANOTUS LONGULUS LEC. BY M. W. STONE i Only two instances of prothetely in the Elateridae have been recorded. Hyslop (I)"* in 1916 described a specimen of Melanotus communis Gyll. which had both larval and pupal characteristics and Thomas (2) in 1933 described a similar abnormality which he had discovered in a larva of Monocrepidius Hindus De G- The writer also observed this rarity recently while examining a group of Melanotus longulus Lee. larvae which had been reared in salve cans from the egg stage. The female which produced the eggs was collected on alfalfa near Temple, Calif. This speci- men (Figs. 1 and 2), one of a group of 34, which hatched be- tween May 13 and June 13, 1932, was found in the prothetelous state on August 27, 1935, after an elapsed period of 1,202 days. As the larva was extremely active, it was decided to kill and preserve the specimen before any possibility of breakage of the wing pads in case it attempted to re-enter the soil. A brief description follows: The mouth-parts are normal and larviform. The antennae are larviform but about twice normal size. The eyes are typically pupiform, being located in a membranous area directly behind the antennal base. As observed by Thomas (2) in M. lividus, the paired wing pads situated on the mesothorax and metafhorax appear to rise directly from the body wall. They are not well developed, are distorted, and lack the normal striation found in typical pupae. Apparently the left mesothoracic wing pad has broken off, as only a stub-like pad remains. The right meso- thoracic wing pad is considerably broader and slightly longer than the metathoracic wing pads. The prothorax, except for being slightly enlarged, is normally larviform. The coxae and tro- ^ Bureau of Entomology and Plant Quarantine, XJ. S. Department of Agri- culture, Alhambra, Calif. ® Figures in parentheses refer to “Literature Cited.” January, 1938] STONE— PROTHETELY IN MELANOTUS Larvae of Melanotus longulus Lee., showing wing pads Fig. 1 — Dorsal view, Fig. 2 — Ventral view, x5. 18 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 chanters of all legs are typically larviform, but the femora, tibiae, and tarsi are pupiform. Spines on all legs are small and few in number. The abdomen, except for the absence of lateral bristles, is typically larviform. Length 19 mm. Width 3 mm. Of this group of larvae which hatched during May and June 1932, 7 pupated normally in 1933, 12 in 1934, and 8 in 1935, representing a 2, 3, and 4 year life cycle, respectively. Five indi- viduals died and 2 continued as larvae, indicating a possible 5-year cycle for these individuals. In the group of 8 larvae which completed development in 1935, the first prepupa was obtained on July 3, and the first pupa on August 12. The last pupation was observed September 26, so the abnormality occurred within the normal pupation period of this species. Temperatures dur- ing the larval period averaged 68.6° with a seasonal range of from 53° to 87° F. All specimens in the group were confined individually in salve cans in the basement and were fed 10 kernels of moist wheat at monthly intervals from the time of hatching. The moisture content of the soil at each feeding was kept as near optimum as possible, between 12 and 14 percent. Hyslop (1) believed that an abnormal humidity at or shortly before the time of pupation was the causative stimulus of this phenomenon in M. communis. The fact that all larvae in this series were subjected to the same conditions of soil moisture, temperature, and food would indicate that other factors than these are responsible for the occurrence of prothetely in M. longulus. Literature Cited (1) Hyslop, J. A. 1916. Prothetely in the elaterid genus Mela- notus. Psyche, XXIII, pp. 3-6, illust. (2) Thomas, C. A. 1933. Prothetely in an elaterid larva (Coleop.). Ent. News, XLIV, pp. 91-96, illust. SUPPLEMENTAL NOTE TO THE PAPER FOLLOWING Since the following paper was submitted the writer has added to his collection eight specimens of Haplothrips calif ornicus Mason, collected by G. L. Smith on A triplex at Arvin, California, Aug. 18, 1936. Among these were two males. There are no differences between the sexes except the usual differences in the genitalia and the smaller size of the male. — S. F. Bailey. January, 1938] BAILEY— THYSANOPTERA 19 A REDESCRIPTION OF TWO SPECIES OF CALIFORNIA THRIPS BY STANLEY F. BAILEY University of California Two species of thrips (Tubulifera: Phloeothripidae) were described by A. C. Mason in 1926 in this journal (Vol. 2, pp. 155-157). Hoplandrothrips sycamorensis Mason was described from five females and one male from Springville (Tulare County), California, taken “under bark or on leaves of syca- more trees.” Zygothrips californicus Mason was described from a single female collected at Orange Cove (Tulare County), Cali- fornia, from an orange tree. Through the kindness of Dr. Mason these species have been studied and with his permission the types have been remounted in order to redescribe and illustrate them. Since the writer’s collection is not extensive in these two genera it will perhaps become the part of some other thysanopterist to further check the position of these species. Thus, this paper has been pre- pared with the intention of aiding in clarifying the systematics of this rapidly growing group of insects. Several visits to the type locality of Z. californicus have failed to uncover any additional specimens. One male of H. sycamorensis was collected by the writer under sycamore bark at Bakersfield, California, on August 21, 1935. Haplothrips californicus Mason, 1926 According to Priesner (Thysanopteren Europas, p. 625, 1928) the chief difference between Haplothrips Serville and its subgenus Zygothrips Uzel is that sense cones on the third an- tennal segment are lacking in Zygothrips. In Mason’s species californicus one sense cone is present on the third antennal seg- ment (fig. 5). On this basis it should be referred to Haplo- thrips only. The writer’s collection does not contain many of the North American Haplothrips but californicus was compared with thirty species at hand and found to be distinct. The original description may be emended as follows: Color, uniformly brown to dark brown; legs concolorous with body. Fore tarsi and distal third of tibiae light brown. Antennae 20 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 with segments I and II dark brown, III yellow, IV to VIII light brown. Wings colorless. Spines light brown and not conspicuous. Head (fig. 1) longer than broad, rounded in front, slightly divergent at posterior margin, with transverse lines. Cheeks smooth. Post-ocular bristles moderate in length and not sharply pointed. Three ocelli; the anterior ocellus on swollen vertex extending forward over base of antennae, posterior ocelli con- tiguous with inner margins of eyes. Mouthcone short, blunt. Prothorax (fig. 2) slightly over twice as wide as long. Bristles rather short and blunt. Fore tarsus (fig. 4) with two claws. Fore femora enlarged. Wings transparent. Fore wing con- stricted at center with 9 to 11 interlocated hairs on the posterior distal margin. Abdomen oval, tapering to tube (fig. 3) which is less than half the length of head. Measurements of female holotype: Total length (not including antennae), 1.46 mm. Head, length 0.227 mm., width 0.175 mm. Prothorax, length 0.123 mm., width 0.273 mm. Abdomen, width at base 0.325 mm. Tube, length, 0.091 mm., width at base 0.061 mm. Length of antennal segments (in mm.) : I, 0.039; II, 0.050; III, 0.052; IV, 0.059; V, 0.052; VI, 0.046; VII, 0.044; VIII, 0.024; total length (not including intersegmental membranes) 0.356 mm. Length of bristles at posterior lateral angle of prothorax 0.046 mm. Length of post-ocular bristles 0.036 mm. Hoplandrothrips sycamorensis Mason, 1926 Mason’s species H. sycamorensis^ does not entirely agree with the definition of the subgenus Hoplandrothrips as set up by Hood (Proc. Ent. Soc. Wash., 14:145, 1912). The writer has not seen the type of this subgenus {H. xanthopus Hood, 1912) but has H. microps Hood, 1912, described at the same time. In H. sycamorensis the head is roughened and more typical of the genus Phloeothrips Haliday, 1836, with the genal spines directed forward and arising from tubercles placed at irregular intervals on the cheeks (fig. 6). This species is very close to Phloeothrips [Hoplandrothrips) armiger Jones, 1912, described from a unique male. Based on the few specimens available, the males of the two species may be separated as follows: H. armiger has three long dilated bristles on fore margin of fore wing at base and sycamorensis has the two basal bristles only dilated at the tip (fig. 10). (The female has all three bristles dilated). The male has been illustrated in this paper for comparison with Jones’ species (U.S.D.A., Bur. Ent., Tech. Ser. No. 23, part 1, plate VH, figs. 1-4, 1912). Until the female of armiger is de- January, 1938] BAILEY— THYSANOPTERA 21 scribed and a larger series of both species becomes available for study the constant differences between these two species and other closely related forms eannot be clearly defined. A reidescription of sycamorensis is presented below. Female: Color dark brown, with irregular, red hypodermal pigmentation. Fore tibiae and fore tarsi very light brown to yellow. Middle and hind legs with tip of tibiae and tarsi light brown. Antennal segments I and II dark brown, basal portion of segments III to VI yellow, remainder of segments light brown to brown. Head about 1.5 times as long as broad. Cheeks slightly arched, converging posteriorly, and with small, irregularly placed, warts from each of which arises a short spine. Frons overhang- ing base of first antennal segments. Third antennal segment with two sense cones, fourth with three, second segment with a small, bean-shaped sensory area in center (fig. 11). Three ocelli, posterior pair about opposite center of eyes. Post-ocular spines not unusually long, with dilated, truncate tips (fig. 6) . Mouth- cone sharply pointed and reaching margin of prothorax. Prothorax about half as long as wide. One long spine at each anterior lateral angle, two shorter spines on anterior margin, one mid-lateral (not mentioned in original description) , one long spine at each posterior lateral angle (one at left missing in male para- type, fig. 7), and two shorter ones on posterior margin. All spines mentioned dilated and truncate at tip. Fore tarsi with a tooth at base. Fore tibiae with one long, slender pointed hair; in center of underside. Fore femora enlarged with a similar long hair near base on underside. Fore coxae (fig. 8) with one long, dilated spine with four or more short, pointed spines posterior to dilated spine. Tarsi of middle and hind legs unarmed. Wings colorless with the exception of a light yellowish shading in center in basal third. Five to ten interlocated hairs on posterior margin of fore wing at tip. Three dilated spines at base of fore wing on anterior margin (distal spine of the three in male not dilated at tip), (fig. 10). Abdomen large, tapering rather abruptly to the tube. Usually three long dilated hairs present at posterior lateral margin of each segment. Terminal hairs as long as tube (fig. 9). Measurements of female type: Total length, not including antennae 2.30 mm. (abdomen somewhat distended). Head, length 0.32 mm., width 0.23 mm. Prothorax, length 0.18 mm., width, 0.37 mm. Abdomen, width at base, 0.408 mm. Tube, length, 0.15 mm., width at base 0.078 mm. Length of antennal segments in mm. (not including intersegmental membranes) : I, 0.034; II, 0.054; III, 0.067; IV, 0.072; V, 0.059; VI, 0.049; VII, 0.046; VIII, 0.028; total length, 0.41. Length of post-ocular bristles 0.058 22 the pan-pacific entomologist [vOL. XIV, NO. 1 mm. Length of bristles at posterior lateral angles of prothorax 0.075 mm. Male (paratype) : Somewhat smaller and more slender. Fore tarsi with a strong tooth (fig. 8). Fore tibiae with blunt tooth / January, 1938] BAILEY— THYSANOPTERA 23 near base on inner side. Fore femora enlarged with two blunt teeth on inner margin at distal end engaging tooth on tibiae. This condition is usually indicative of the raptorial function. Length of post-ocular bristles 0.062 mm. Length of bristle at right posterior lateral angle of prothorax 0.059 mm. (none present on left side) . 1, Dorsum of head Haplothrips calif ornicus Mason; 2, Dorsum of prothorax of H. calif ornicus; 3, Tip of abdomen of H. cali- f ornicus; 4, Left fore leg of H. calif ornicus; 5, Left antenna of H. calif ornicus; 6, Dorsum of head of male of Hoplandrothrips sycamorensis Mason; 7, Dorsum of prothorax of male of H. syca- morensis; 8, Left fore leg of male of H. sycamorensis; 9, Tip of abdomen of male of H. sycamorensis ; 10, Base of right fore wing of male of H. sycamorensis; 11, Left antenna of male of H. syca- morensis. 24 the PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 NEW SPECIES OF ANDRENA FROM CALIFORNIA (HYMENOPTERA) BY P. H. TIMBERLAKE Citrus Experiment Station, Riverside, California The types of the species described below are in the collection of the Citrus Experiment Station, Riverside, California, with the exception of those paratypes whose disposition is men- tioned under the respective species. Andrena (Ptilandrena) suavis Timberlake, n. sp. This species is closely allied and similar to A. complexa Viereck, but is considerably less greenish and has a much more distinctly fasciate abdomen. These two species have a short suberect finely plumose scopa, and the males have the face dark, without light markings. On the basis of these characters they fall in Ptilandrena, as defined by Robertson, rather than Pterandrena. Female. Black with tergum of abdomen very dark green and a slight dark greenish luster on the head and mesonotum. Pubescence pale ochreous, paler on the face and! underparts. Head considerably broader than long. Fovese short and very narrow, extending from level of middle of antennal sockets to a little below the summit of the eyes and very widely separated from the lateral ocelli. Malar space very short and linear. Clypeus little produced, gently convex, tessellate and somewhat dullish, finely, evenly and closely punctured, the punctures imparting a fine roughness to the surface. Rest of face below antennae with a very similar sculpture. Frons finely longitudinally striate. Process of labrum broadly truncate, about twice as broad as long, with the apical margin just perceptibly concave. Hair of head entirely light except a few blackish hairs on the scapes and on each side of frons next to the fovea. Foveae also blackish on dorsal half except w*hen viewed from above. Hair of face below antennae abundant, rather short, erect, plumose, and not concealing sur- face. Antennae blackish, with the third joint a little shorter than the next three joints combined. Thorax almost throughout with a very uniform sculpture, tessellate and rather dull, with obscure punctures, which become a little more evident on the pleura and still more so on the sides of the propodeum so that the surface is roughened. Enclosure of propodeum small, tri- angular, defined by the fine granular-tessellated sculpture. Hair of thorax rather long, erect, slightly shorter on the notum, and January, 1938] TIMBERLAKE— ANDRENA 25 of moderate density. Floccus on sides of propodeum very long and strongly plumose. Tergum of abdomen somewhat shiny, minutely tessellate, and with very fine rather sparse punctures. Pubescence of tergum short, suberect, rather thin, but forming a narrow complete fascia at apex of tergites II to IV. Fimbria fuscous or brownish, overlaid with lighter hairs. Legs black with tibial spurs pale testaceous. Hind basitarsi long, and about two-thirds as wide as the hind tibiae at apex. Middle basitarsi a little wider than the hind pair. Hairs of legs entirely light, or the scopa may become a little fuscous towards base above. Hair on inner side of tarsi golden ochreous. Wings subhyaline, not darkened at apex; the veins (except subcosta) and stigma brown. Basal vein a little postfurcal (but sometimes nearly or quite interstitial with the nervulus) . Second cubital cell nearly quad- rate, receiving the first recurrent at the middle. Length, 8.5 mm.; fore wing, 6.8 mm. Male. Similar to the female except in usual sexual characters. The metallic coloration more bluish than greenish. Pubescence similar, but hair of face below antennae considerably longer and denser, with that of clypeus bright ochreous (fading to whitish) and with much black hair on sides of face and on the scapes and a little on cheeks behind summit of eyes. In some speci- mens there are a few black hairs on the pleura just below the base of the wings. Fascia on tergites II to IV thinner and, more or less interrupted in middle. Head much broader than long. Process of labrum much as in the feihale but in some specimens more distinctly emarginate on apical margin. Antennae blackish, joint III subequal to IV plus V. Middle joints of flagellum slightly longer than thick. Cheeks rather broad and rounded behind, the widest part a little above the middle of eyes. Sculpture through- out very similar to that of the female. Length 7 mm.; fore wing 5.4 mm. Described from 9 females, and 29 males (holotype, female, allotype, and paratypes) collected at Berkeley, Calif., on Ranun- culus calif ornicus, February 24 to March 11 (R. M. Bohart) ; one female (paratype) without data from old insectary collec- tion at Sacramento; one female (paratype), Angel Island, San Francisco Bay (G. Boettcher) ; and one female, one male (para- types), Griffith Park, Los Angeles, on Ranunculus, March 14, 1936 (E. G. Linsley) . The holotype and allotype wfere collected March 11, 1935. The series from the type locality shows little variation not noted above except that the black hairs on the sides, of the face in the female occasionally are more numerous and descend below the antennae. The females vary from 8 to 9.5 mm. in length, and males from 6.75 to 7.5 mm. The male and female from 26 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 Los Angeles are more greenish (this color persisting also in the male) and have darker stigma and veins, especially in the male, where they are almost black. This species is one of the hosts of Stylo ps pad ficus Bohart. Andrena (Micrandrena) dinognatlia Timberlake, n. sp. This remarkable species, with its extremely large head, is suggestive of the recently described A. vandykei Ckll. It differs from the description of vandykei in the shape of the mandibles, lack of a long slender spine on the malar space, the yellow band of clypeus reaching lateral margins, the very dark stigma and nervures, and in other details. Male. Black, the tegulee and tarsi a little brownish and spurs of tibiae pale testaceous. Head subquadrate, nearly twice as broad as thorax, about one and one-third times broader than long, and widest at the anterior end. Clypeus very large, depressed, but the outer half of the lateral extensions convex and almost pulvi- nate. The anterior margin of clypeus between these bosses broadly concave. Clypeal band light yellow, broad, covering whole width and almost entire length of clypeus on the lateral extensions and slightly more than half the length in median line. Dorsal margin of the band rather strongly notched on each side to form three nearly equal lobes, of which the middle one is a little longer and more or less emarginate. Cheeks very broad, aubangular, with the widest part well above the middle of eye. Malar space rather well developed but transverse, and widening behind. The cheeks and malar space combined form a wide space behind and in front of eye, and the antero-inferior corner of this space forms a sharp angle but is not produced into a spine. Mandibles very large and long, bent at right angles a little beyond the strongly expanded base, having the portion beyond the bend nearly straight, mod- erately slender, with a very blunt inner tooth close to the apex. Labrum small, transverse, the process hardly elevated above rest of surface, polished, transversely quadrate, its apical margin coin- ciding with margin of labrum. Vertex and frons very finely, almost granular-tessellate, the frons also finely striate. Face below antennae more shiny, finely tessellate, and the clypeus still more shiny, with no punctures anywhere on face except extremely minute ones. Cheeks finely tessellate and dullish. Antennae blackish, rather long, the joints of flagellum mostly about one and one-third times longer than thick. Joint III a little shorter than IV plus V. Thorax with nearly uniform sculpture, minutely tessellate and dullish, with very fine indistinct punctures. En- closure of propodeum small, more opaque and more granular- tessellate. Abdomen somewhat shiny, finely tessellate and almost January, 1938] TIMBERLAKE— ANDRENA 27 impunctate. Wings nearly hyaline, not darker at apex. Veins very dark, almost black, the stigma a little more reddish. Vena- tion of the Micrandrena type, with the first intercubitus close' to the stigma. Pubescence rather thin and long, pale fulvous, be- coming paler beneath and creamy on the clypeus. Sides of face, scapes, and cheeks behind summits of eyes with considerable black hair. Middle segments of the abdomen with pubescence short, thin, depressed, with no indication of bands. Length, 7 mm.; fore wing, 5.7 mm. The length of body in my small series varies from about 6 to 7 mm. The size of the head varies considerably and in the smallest specimen is hardly half as large as in the holo- type, and the peculiar modifications of the clypeus and mandi- bles are much less accentuated. The head also is less quadrate and not broader anteriorly but is transversely oval. Described from five males (holotype and paratypes) col- lected at Davis, Calif., February 3 and March 2, 1936 (R. M. Bohart) ; and one male (paratype) in collection of the Oregon State Agricultural College, collected at Corvallis, Oregon, May 8, 1927 (Velma T. Shattuck). Mr. Bohart writes that the Davis specimens were frequent in early spring on a coiled orange flowered weed, which I presume is Amsinckia. Andrena (Platandrena) pensilis Timberlake, n. sp. This is easily distinguished from A. nasonii Rob. and from the other Pacific Coast species of Platandrena by the shining clypeus with long pendent hairs in the middle, by the opaque mesonotum, and dullish abdomen which has the first tergite finely and densely punctured. Female. Black, including mandibles, antennae, legs and tegulae. Tibial spurs yellowish white. Head much broader than long. Clypeus large, depressed on disk, shining, finely, rather closely punctured, the punctures becoming finer and closer later- ally. Sides of face below antennae sculptured much like the sides of clypeus. Frons and vertex dull, minutely striate. Cheeks rather shiny, with a fine irregular reticulation. Facial foveae cuneate, very broad and light brown above, almost acute below and ending slightly below level of top of clypeus. Third antennal joint almost as long as the next three joints combined. Process of labrum low, very broad, rounded at apex. Mesonotum opaque, very minutely ruguloso-tessellate and with very minute indis- tinct punctures, but the scutellum anteriorly a little shiny in some lights. Mesopleura convex anteriorly, somewhat flattened 28 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 behind, with a weak transverse ridge just above middle coxae. Surface of pleura dull above, much like the notum, more shiny below. The dorso-posterior surface of propodeum dull, the en- closure large, granular-reticulate and further defined by a raised line. Sides of propodeum meeting dorsal surface in a right angle, the surface tessellate, rather shiny, impunctate. Middle tibiae strongly cuneate, fully twice as wide at apex as the middle or hind basitarsi. Abdomen broad (about 3.25 mm. wide), slightly shiny, very finely tessellate and minutely punctured. On disk of tergite I the punctures are distinct and very close, but they become progressively fainter and are much sparser on tergites II to IV. Tergite II depressed about one-third in the middle. Venter of abdomen more shiny, with minute piliferous punctures. Pubescence ochreous, nearly uniform in tinge throughout, except as noted. Hair of head moderately abundant, densest on the cheeks. Hair of clypeus thin, rather erect and not very long, except in middle where there are a few very long coarser fuscous or brownish hairs pendent from upper part of disk. These long hairs hug the surface, except that they curl out at tips, and the w'hole hair of clypeus has a frizzly appearance. Hair of meso- notum mostly very short, with a few longer hairs intermixed; that of the pleura much longer. Floccus of propodeum long and curled, the hairs finely plumose. Anterior margin of the sides of propodeum with a vertical row of similar hairs which, with those on dorsal margin, form a large pocket to hold pollen. Hair of legs pale, becoming golden ochreous on inner side of tarsi. Flocculus of hind trochanters moderately long. Scopa of hind tibia short, dense, the hairs on outer surface almost vertically erect and not at all concealing surface, those on lower margin a little longer, very minutely plumose, and curled backward at tips (the longest of these scarcely longer than half the greatest width of tibia). Hairs on dorsal margin of tibia more reclinate, denser, more evidently plumose. Abdomen with pale hair, very fine and depressed on disk of tergites and forming a narrow fascia at apex of tergites II to IV, broadly interrupted in middle on II. Fimbria pale brownish, lighter toward the sides. Wings subhyaline, not darker at apex. Stigma and veins, except subcosta, reddish brown. Basal vein meeting nervulus. Second cubital cell rather small, a little oblique, and receiving recurrent vein a little beyond middle. Length, 9.5 mm.; fore wing, 6.6 mm. Male. Similar to the female, except in usual sexual char- acters, but abdomen hardly fasciate. Pubescence entirely light, pale ochreous, or whitish. Clypeus covered with rather dense hair, forming the usual brush. Sculpture very nearly as in the female, but enclosure of propodeum very finely, mostly longi- tudinally, wrinkled; first tergite with very fine, much less dense punctures than in the female, not differing obviously from fol- lowing segments. Head very ordinary in structure, wider than January, 1938] TIMBERLAKE— ANDRENA 29 long:. Cheeks rounded behind, not very wide. Mandibles ordinary, toothed within, not at all decussate. Antennae of moderate length, the flagellum rather stout; third joint about equal to IV plus V; middle joints of flagellum about as long as wide. Wings as in the female. Length, 8.5 mm.; fore wing, 5.9 mm. Described from four females and seven males (holotype female, allotype and paratypes) collected at Davis, Calif., on Baeria, April 24, 1936 (R. M. Bohart) ; two females (para- types), Stanford University, May (collector unknown) and two females and one male (paratypes) without data from the old insectary collection at Sacramento. I have also determined stylopized specimens for Mr. Bohart from Yolo Causeway on Baeria and Downingia pulchella, April 24 and May 5; two males from Davis, on willow, April 1, and one male, Alturas, Modoc Co., in June. The male differs from A. nasonii Rob. in its considerably larger size, much longer third antennal j oint, much more shiny clypeus and in basal nervure meeting nervulus. It differs from males of A. angustitarsata Vier. and A. opaciventris Ckll., in having no dark (fuscous or blackish) hairs on sides of face, and in the much shorter antennae, with the third joint relatively much longer. TWO NEW AMERICAN BUMBLEBEES BY MYRON H. SWENK Lincoln, Nebraska Bombus (Bombus) bruneri Swenk, n. sp. Female. Length 15.5 mm.; width of abdomen at second tergite, 8.5 mm. Head elongated, the malar space distinctly longer than its width at apex, about one-third as long as the eye. Clypeus polished and finely, weakly and sparsely punctured except at mar- gins. Antennal joint III greatly exceeding V, nearly = IV-hV. Pubescence ferruginous red, paling to yellowish gray on lower pleurae which have no black pile; pubescence of segment VI and venter whitish, also without black hairs; legs wholly clothed with black hairs thinly intermixed among' the orange ones, the cheeks and extreme sides of the occiput black-haired. No carina on epipygium or hypopy.gium. Wings very slightly darkened, almost subhyaline. Holotype: Worker, “Texas,” in collection of University of Nebraska. 30 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 This species is a Bomhus sens, str. of the dumoucheli group, closely allied to the South American B. dahlhomii Guerin, from which it is readily distinguishable through its mostly orange- red pubescence of the face (black in dahlhomii), wholly pale pubescence of pleura (black below in dahlhomii) anid whitish pubescence of pygidium and venter (black in dahlhomii). I must confess some doubt, however, as to the accuracy of the locality label, although directly under the original label is another “worker new species from Texas.” This specimen, along with a number of other Bomhi and other bees, was submitted to the late W. H. Ashmead for study about 1898 and returned with a label in his handwriting, “ Bomhus hruneri Ashm. 2 ”, though no description was ever published by him. In now describing and naming the species, I am pleased to retain this manuscript name of Ashmead’s choosing. Bomhus edwardsii fuscifrons Swenk, n, var. ? Bomhus sylvicola Titus, Can. Ent., xxxiv, pp. 39 and 43 (February, 1902). Female and worker. Resembling B. edwardsii var. bifarius Cresson, but the face with many black hairs on the sides and above the antennae, the mesopleura covered with yellow pile to the base of the legs, the mesoscutellum not or but feebly divided by black hairs ; tergite I yellow, II and III ferruginous, without any black hairs. Colored like B. sylvicola Kirby except for the black facial hairs, but pubescence shorter. Differs from B. melanopygus Nylander in the dorsum anterior to interalar band being yellow, without any admixture of black hairs. B. huntii Greene is distinct in its yellow face, black corbicular fringes and straight interalar band. The $ runs in Franklin’s table to B. sylvicola, passing edwardsii at dichotomy 38 because of the wholly yellow mesopleura, while the worker runs to B. edwardsii. Male: Differs at once from the 5 of B. edwardsii (color variant 3 of Franklin) and B. sylvicola in the conspicuous tufts of black facial hairs above the antennae and in the Wholly black hairs of the cheeks. Runs in Franklin’s table to dichotomy 66, B. sylvi- cola and B. geUdus. Holotype: Colorado (C. P. Gillette, No. 1733) 2. Collec- tion University of Nebraska. Allotype: Ward, Colorado, male. Paratypes: Colorado (C. P. Gillette, No. 687) 1 2 ; Ward, Colorado, 3 workers; southern Colorado (Wm. Shear) 1 worker; Denver, Colorado, September, 1900 (F. Dormann), 1 worker. January, 1938] BLAISDELL— A NEW SITONA 31 A NEW SPECIES OF SITONA FROM SAN MIGUEL ISLAND (COLEOPTERA: CURCULIONID^) BY FRANK E. BLAISDELL, SR.^ Sitona cockerelli Blaisdell, n. sp. Form elongate, moderately narrowed anteriorly, about three times as long as wide. Color black, obscured by the vestiture; antennae rufo-testaceous toward base, club and last two funicular segments darker; tarsi more or less rufo-piceous. Body densely clothed with scales, intermingled with hairs and setae as given below; punctation not visible. Prevailing color of the scales more or less cinereous; those of the epistoma, occiput and legs notice- ably iridescent. Scales of the frons and beak slightly oval, of the epistoma narrowly so, those of the occiput narrow and elon- gate, of the temporal and gular regions a little wider and elongate, whitish and without intermixed hairs; the latter abundant about the mouth-parts, without scales. Scales of the pronotum and elytra moderately small, rounded to very slightly oval. On the pronotum a narrow median and sub-lateral cinereous vittae are evident, in the intermediate areas and laterally the scales are cinereous and blackish intermixed. On each elytron the scales of the second, third and fourth intervals are slightly reddish- brown, very sparsely intermingled with others that are whitish, forming broad and very inconspicuously marked vittae; those of the first, fifth and sixth intervals noticeably more or less cinereous, those of the lateral intervals intermixed with brownish and blackish scales; intervals one, two, three, seven and eight more or less tessellated with blackish or nebulous areas, especially on the lateral and apical declivities. Pubescence of the frons and beak moderate, hairs rather long, especially over the eyes, semi-erect and radiating from about the median sulcus; on the pronotum moderately abundant, darker in color, setiform and arcuately decumbent. On the elytra the serial, strial setae are slender, recumbent on the striae, particularly in the central area, in length quite equal to the distance ' between the obscured punctures; on the intervals the hairs are moder- ately numerous, irregularly placed, the darker ones recumbent, the paler more or less semi-erect, slightly subsquamiform and stouter laterally than in the central area, appearing somewhat serial when viewed longitudinally toward the apex. Under surface of body densely clothed with very pale brownish elongate-oval scales and slender hairs. Legs sparsely and very irregularly clothed with similar scales, cinereous in color, and hairs equally intermingled. ^ Stanford Medical School and Associate in Research, California Academy •f Sciences, San Francisco, California. 32 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 Head as wide as long before the post-ocular line, frons quite flat; epistoma very feebly and broadly impressed, beaded at the sides, a median carinula not evident, the sulcus linear and shallow. Superior border of the eyes not noticeably prominent, the latter oval, moderate in size, not prominent and less than a third longer than wide. Antennse a little longer than width of prothorax, scape extending to middle of eyes, slender in basal two-thirds and gradually enlarged apically, a little longer than the first four funicular segments combined; funicle moderately slender, first segment swollen toward apex and about equal in length to the second and third combined; second obconical and slightly enlarged apically, equal in length to the fourth and fifth together; third a little longer than wide, fourth and fifth equal in size and as long as wide, sixth and seventh a little larger, equal, a little wider than long and subtriangular in profile; club elongate, sub- fusiform oval, a little more than twice as long as wide, equal in length to the five preceding funicular segments. Prothorax at middle about one-seventh wider than long, widest at middle and there one-third wider than apex, the latter quite truncate, angles small and acute; sides somewhat strongly arcuate in middle three-fifths, thence gradually convergent and feebly, broadly sinuate to apex, posteriorly sinuate in basal one-fifth and brieflly subparallel before the distinct obtuse angles; base broadly arcuate and a little wider than apex. Post-apical constriction feeble, disk moderately convex. Elytra about two and one-fifth times as long as the prothorax, and about seven-tenths longer than wide; base slightly emargi- nate, humeri prominent and broadly rounded; sides parallel, slightly and very broadly sinuate behind the humeri, arcuately convergent in about apical two-fifths, rather acutely rounded at apex; disk somewhat plane basally between the humeri, thence increasing moderately in convexity toward apex, laterally arcu- ately declivous, narrowly so at humeri, deflexed surface feebly convex and moderately indexed ; apical declivity somewhat gradually arcuate; striae very fine, intervals flat on the dorsum, slightly convex laterally, most so apically; fifth interval termi- nating just below summit of declivity, the fourth and sixth meet- ing at its apex and there slightly prominent and feebly tufted; apices at the angle narrowly and densely clothed with cinereous scales and few longer hairs. Propygidium and pygidium protruded and deflexed in the type, each densely punctate, the latter clothed with slender hairs and narrow' elongate scales. Under surface of body densely in- vested with very pale brownish elongate-oval scales and slender hairs. Abdomen feebly convex, slightly impressed at middle of first two segments; second segment on the median line equal in length to the fifth, third and fourth equal and together about one- fourth longer than the second. Legs sparsely and very irregularly January, 1938] BLAISDELL— A NEW SITONA 33 clothed with pale, elongate-oval scales equally intermixed with pale hairs. Protibiae slightly arcuate in distal one-half: Measurements. (Type) Length 11.5 mm.; width 2.5 mm. Type, apparently a male in the eolleetion of the California Aeademy of Seienees (No. 4539). Two specimens collected by Prof. T. D. A. Cockerell, July, 1937, on San Miguel Island, off of the California coast south of Point Conception, Santa Bar- bara County. One paratype much paler in coloration, the darker colors nearly obsolete. This species is apparently most closely related to Sitona extrusus Casey of Lower California, which has the seventh funicular antennal segment and eyes more elongate. In cockerelli the seventh and eighth funicular segments are equal in size and as long as wide; the eyes are oval and about one- third longer than wide; sides of the prothorax behind the apical angles feebly, broadly sinuate, not strongly constricted as in extrusus. The individuals of different species of Sitona vary greatly among themselves in vestiture, coloration and pubescence, rendering the identification of many species very uncertain from the too meager descriptions, with which the student has to work. The above remarks are given as an excuse for the length of the above description and as an incentive to authors to make greater use of differential details. GENUS DICTYDEA UHLER (Homoptera, Issidae) BY EDWARD P. VAN DUZEE This genus was founded by Dr. Uhler in 1888 for two species of Issids from Southern California, angustata Uhler and inter- media Uhler. I have taken angustata in Mint Canyon, north of Saugus, California, and Dr. E. C. Van Dyke has taken at Lytle Creek, San Bernardino, Co., a series of a form that does not seem to differ except in its larger size and darker color. D. intermedia is a common species in Mint Canyon on the holly- leaved cherry, Prunus illicifolia. The two species described below have narrow elytra, allying them slightly with genus Danepteryx, from which genus they are, however, abundantly distinct. 34 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 Key to the Species of Dictydea Elytra about one-third as wide as long, 1 Elytra about one-fourth or less as wide as long, 2 1. Elytra fuscous or black, the entire costal and sutural margins alternated with white; body varied with ^ 2 i\e,....angustata Uhler Elytra margins alternated with white as in angiistata; disk generally with an irregular transverse white vitta just before the apex of the clavus, a white area on the clavus and another, elongated, near the apex; these white areas crossed by the black veins, intermedia Uhler 2. Elytra long, strongly decurved at apex, black with a sutural white spot beyond the tip of the clavus, the margin sparsely spotted with white. Length 6 mm., falcata Van D. -. Elytra parallel, with the apex lanceolate and the costa straight, the sutural margin white with! fuscous veins; body varied with fuscous and pale. Length 4-5 mm., variegata Van D. Dictydea variegata Van Duzee, n. sp. Aspect of intermedia but with narrow lanceolate and pale elytra. Leiigth. Male 4.50 mm., female 5 mm. Male: Vertex a little shorter than in intermedia, distinctly shorter on the median line. Front scarcely longer on the median Carina than wide; lateral margins very feebly arcuate; carina moderately prominent; sides with about four obscure pustulate marks within the lateral carinae ; clypeus moderately convex as in intermedia; pronotum broadly rounded before, a little longer than in intermedia. Elytra narrow* as in falcata, slightly exceed- ing the abdomen as in intermedia, their length four times their width; sides parallel on basal two- thirds, the inner margin then elliptically narrowed to a subacute apex; costa rectilinear. Ven- tral valves triangular at apex, forming a rounded lobe below, the upper angle produced in a tooth; ventral aspect of anal tube of female ovate and flat, its lateral margins tumidly carinate; anal tube of male broader than in intermedia, the ventral plates more produced. Color yellowish testaceous; sides of clypeus, an obscure vitta on either side of the median frontal carina, a spot before the antennae, another before the eyes, disk of the vertex, a broad vitta either side of the median carina on the pro- and mesonotum, femora and tibiae except the knees and coxae, and some areas on the pleural pieces, infuscated. Elytra mostly whitish, the median disk interruptedly infuscated, the nervures about the margin and on the apical portion of the fuscous areas blackish. January, 1938] VAN DUZEE— DICTYDEA 35 Described from 42 specimens, representing both sexes, taken by R. L. Usinger and the writer in Owens Valley, California, in June, 1929, mostly at Independence but a few at Big Pine, Inyo Co., California, all on sage brush (Artemesia). Holotype, male. No. 4582, and allotype, female. No. 4583, Mus. Calif. Acad. Sci., Ent., taken by R. L. Usinger, June 14, 1929, at Inde- pendence. On account of the narrow elytra both this species and the next would run to Danepteryx in Melichar’s key of 1906, but their structural characters are those of Dictydea. The char- acters in this species are liable to be obscured by a white bloom. Dictydea falcata Van Duzee, n. sp. Allied to angustata but with the front proportionately nar- rower with the sides parallel, not feebly convexly arcuate as in angustata and with longer scimitar-shaped elytra. Length to tip of elytra 6 mm. Male: Vertex as in angustata’, front as wide as its median length, its sides essentially parallel, briefly arcuately narrowed to the clypeus which is broader and more strongly convex at base; carinae prominent; the surface smooth but scarcely polished. In angustata the front is a little longer, its sides, feebly convex, the carinae less prominent, the surface minutely pubescent when fresh and the clypeus less tumid at base. Pronotum longer and more acutely produced than in angustata leaving the vertex shorter. Elytra about three times as long as its greatest width, surpassing the abdomen by one-fourth its length, decurved at apex with the veins more prominent and regular. In angustata the elytra are shorter, rounded-angulate at apex with the costa straight. Ventral valve of the genital segment longer and the ventral aspect of the anal tube broader and flatter, with a small apical notch. Color as in angustata but the elytra with a roughly triangular white spot on the sutural margin on which the fuscous veins are prominent; the white marginal dots are less uniform, omit the extreme apex, and become almost obsolete on the basal one-half of the clavus and costa. Described from one male in my collection, taken by Mr. Fordyce Grinnell, June 5, 1910, at Pasadena, California. Type No. 4584, Mus. Calif. Acad. Sci., Ent. 36 the pan-pacific entomologist [vOL. XIV, NO. 1 AMERICAN BEES OF THE GENUS CHELOSTOMA BY CHARLES D. MICHENER i University of California, Berkeley Chelostoma is a small, holarctic genus of slender, black, osmiine bees. In North America several species have been placed in this group but most of them have since been transferred to other genera, leaving only a small number of western species in Chelostoma. Among the species thus removed is Prochelo- stoma philadelphi (Robertson) from the eastern United States. This insect might well remain in Chelostoma, perhaps as a sub- genus. It differs from typical Chelostoma in the shape of the third segment of the labial palpus, which tapers toward the base in Prochelostoma whereas it is parallel-sided or tapers slightly toward the apex in Chelostoma. The genitalia of Pro- chelostoma are not strikingly different from those of Chelostoma. Chelostomopsis is quite distinct from Chelostoma, the male of the former having only six exposed tergites and having the process of the coxopodite of the genitalia broadened apically. The third segment of the labial palpus tapers basally and is joined to the second a little before its apex. In the allied genus Formicapis the third segment of its labial palpus also tapers basally. Autochelostoma does not belong to the group of genera near Chelostoma but is based upon a gynandromorphic speci- men of Alcidamea producta. The genus Chelostoma may be recognized by the following characters : Slender, black; first segment of labial palpus a little over one-third to about one-fourth as long as second; third segment compressed, apparently rigidly joined to second, about parallel- sided or tapering slightly apically; maxillary palpi short, three- or four-segmented; thorax elongate, the metanotum and dorsal part of propodeum horizontal; prepectal carina absent; notaulices long linear; first tergite with shallow longitudinal basal sulcus, anterior face not bounded by carina; male with seven exposed tergites and six exposed sternites; coxopodite of male genitalia broad basally, produced to a long, very slender, process. ^ To Mr. P. H. Timberlake of Riverside, California, I wish to express my appreciation for his helpful suggestions and for the opportunity to study his fine collection of Californian Chdostowa. January, 1938] MICHENER— CHELOSTOMA 37 Key to the American Species of Chelostoma Males 1. Seventh tergite ending in four slender processes, median pair sometimes united for a part of their length mimitiim ... Seventh tergite ending in three processes 2 2. Processes of seventh tergite short (figure 2) ; posterior face of propodeum above median pit smooth and polished; length 8 mm calif ornicum ... Processes of seventh tergite long (figure 1) ; posterior face of propodeum rather dull; length 6 mm. or less 3 3. Maxillary palpus three-segmented; median tooth of seventh tergite directed more ventrally than are the lateral teeth. bernardinum ... Maxillary palpus four-segmented; median tooth of seventh tergite in same plane as lateral teeth phacelise Females 1. Posterior face of propodeum above median pit polished; length about 8 mm. (rarely 6 V 2 mm.) calif ornicum ... Posterior face of propodeum rather dull; length less than 6 mm 2 2. Maxillary palpus four-segmented phacelisc ... Maxillary palpus three-segmented 3 3. Anterior margin of clypeus between tubercles minutely crenu- late; facial line about equal to transfacial line bernardinum ... Anterior margin of clypeus between tubercles straight; facial line distinctly longer than transfacial line minutum Chelostoma californicum Cresson calif ornicum Cresson, 1878, Trans. Am. Ent. Soc., 7:108, $ Schletterer, 1889, Zool. Jahrb. (Syst.), 4:649, $ Titus, 1906, Proc. Ent. Soc. Wash., 7:161, 2 S albicinctum Provancher, 1895, Nat. Can., 22:190 (Heriades) , $ $ odontura Cockerell, 1902, Bull. So. Calif. Acad. Sci., 1:139 (Heriades ) , $ dolichosoma Cockerell, 1922, Ann. Mag. Nat. Hist., (9)10:456 (Robertsonella) . $ , n. syn. This is the largest and most conspicuously pubescent Amer- ican species in the genus. Length 8 to 9 mm. (rarely only 6V2 mm) . Male: Pubescence fairly abundant, whitish, forming apical bands on tergites; first segment of labial palpus about one-third as long as second; maxillary palpi short, three-segmented, first segment very short, second and third longer and subequal in 38 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 leng-th; glossa about as long as facial line; body finely punctate; dorsum of propodeum very finely and closely roughened, dull; posterior face of propodeum above pit polished and impunctate, elsewhere shiny and coarsely punctate; abdomen a little more finely punctate than thorax; second! sternite with median eleva- tion, seventh tergite with median depression and three apical processes; parameres and process of coxopoditesi of genitalia bent downward apically. Female: Similar to male; face broader; clypeus closely punc- tate, with a pair of variable, often inconspicuous, widely sepa- rated tubercles on anterior margin; edge between marginal tubercles of clypeus straight, but medially with a pair of pre- marginal tubercles; punctures of posterior face of propodeum finer than in male; hind metatarsus longer than remaining seg- ments of tarsus together. Type locality: California. Lectotype in the collection of the Academy of Natural Sciences of Philadelphia. A specimen of alhicinctum is in the United States National Museum, and the holotype of dolichosoma is in the Cockerell collection. Both of these appear to be( typical C. californicum. California: Tetley Park, San Bernardino Mountains, May 16 and 23, 1936, mostly on Nemophila (Timberlake & Michener) ; Banning, May 28, 1928 (E. C. Van Dyke) ; Riverside, May 15, 1933, on Phacelia distans (Timberlake) ; Redlands (no. 12) (F. R. Cole) ; Potwisha, Sequoia National Park, 2000' to 5000 feet eleva- tion, May 15, 1929 (E. C. Van Dyke) ; mouth of Deep Creek, May 5, 1936, on Eriodictyon trichocalyx (Linsley & Timberlake) ; Marsh Creek, Mount Diablo, April 26, 1937, on Phacelia (G. E. & R. M. Bohart & Michener) ; Antioch, April 18, 1936 (G. E. Bo- hart) ; Swartout Valley, June 3, 1928, on Phacelia davidsonii (Timberlake) . Chelostoma phaceliae Michener, n. sp. This is a small black species. Length about 5 mm. Male: Pubescence sparse, dull white, most abundant on cheeks and face and forming narrow broken abdominal bands ; body finely and rather evenly punctate, rather dull; first segment of labial palpus about one-fourth as long as second, varying somewhat in the paratypes; maxillary palpi short, four-segmented; first seg- ment short and globular, second longest, third shorter, fourth still shorter, only a little longer than first, nearly as long as third' in some paratypes; mouth-parts very long, glossa nearly twice as long as facial line; horizontal area of propodeum finely rugose. January, 1938] MICHENER— CHELOSTOMA 39 shorter than metanotum; punctures of scutum separated by less than their diameters and a little coarser than those of vertex. Wings large, dusky, veins and stigma black; second abscissa of cubital vein shorter than fourth. Abdomen slightly more finely punctate than head or thorax; seventh tergite ending in three long processes, all in the same plane, median longest, laterals slightly curved inward; second sternite with a transverse raised area; apices of abdominal segments narrowly brownish. Female: Similar to male. Face a little broader, slightly longer than broad; eyes narrower; clypeus not very closely punctate, its anterior margin with a pair of sublateral tubercles between which the margin is straight; hind metatarsus very slightly shorter than remaining segments of tarsus ; abdominal hair bands usually com- plete; scopa white. Holotype male (Calif. Acad. Sci., Ent. No. 4491), allotype female (Calif. Acad. Sci., Ent. No. 4492) and six paratypes from Altadena, California, May 11, 1935, on Phacelia tanacetifolia. Additional paratypes are from the following localities in Cali- fornia: Altadena, June 11, 1933, April 19, 1935, May 19, 1935, June 1, 1935, and May 2, 1936, all on Phacelia; one from San Gabriel Canyon, Los Angeles County, June 25, 1933, on Lotus; three from Sespe Canyon, Ventura County, April 22, 1934, on Phacelia; two from Los Angeles, June 16, 1934, on Phacelia ramosissima (all Michener collector) ; six from Rincon Creek, near Carpinteria, July 16, 1928 (E. C. Van Dyke) ; five from Idyllwild, San Jacinto Mountains, June 23, 1928 (E. C. Van Dyke) ; two from Fillmore, June 27, 1937 (B. E. White) ; thirteen from Riverside, April 20, 1926, April 26 and May 4, 1927, May 12 and June 4, 1930, April 8, 1932:, May 14, 1936, on Phacelia ramosissima and P. distans (Timberlake) ; sixteen from Puente Hills, Los Angeles County, May 9 and' 10, 1926, on Phacelia dis- tans (Timberlake). Paratypes will be found in the collections of the California Academy of Sciences, the United States National Museum, Prof. T. D. A. Cockerell, Mr. P. H. Timberlake, Mr. E. G. Linsley, Mr. G. E. & Mr. R. M. Bohart, Mr. B. E, White and the author. Additional locality records are as follows. California: Mari- posa County, July 2, 1933 (G. E. & R. M. Bohart) ; Arroyo Seco, San Gabriel Mountains, July 6, 1922i (J. C. Bridwell, U. S. N. M.) ; California Hot Springs, Tulare County (E. R. Leach) ; Idyllwild, July 3, 1930, on Erigeron foliosus var. stenophyllus; Tetley Park, San Bernardino Mountains, May 13, 1934, on Potentilla; Moun- tain Home Creek, San Bernardino Mountains, June 17, 1934, July 4, 1935, on Erigeron and Phacelia ramosissima; Swartout Valley, June 3, 1928, on Phacelia calif ornica; Big Pines Camp, San Gabriel Mountains, July 11 to 13, 1927, on Phacelia ramosissima and P. 40 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 californica; Coffee Camp, Tulare County, June 8, 1925 on Phacelia; General Grant National Park, June 27, 1929, on Phacelia', Berke- ley Hills, June 4 and 16, 1933, on Phacelia', Green Valley, Solano County, June 9, 1933, on Phacelia (all Timberlake) ; Cobb Moun- tain, Lake County, May 7, 1936 (R. M. Bohart) ; Marsh Creek, Mount Diablo, May 12, 1937, on Phacelia (G. E. & R. M. Bohart). Oregon: Wildhorse Canyon, Andrews, 4270 feet elevation, July 5, 1927 (H. A. Scullen). Washington: Walla Walla, May 30, 1937 (G. E. & R. M. Bohart) . Specimens from the last two California localities average a little more finely punctate than most specimens. On account of the elongated mouth-parts and four-segmented maxillary palpi, this species might seem to represent a genus or subgenus distinct from Chelostoma. However, it appears to be so closely related to C. bernardinum, a species with normal mouth-parts, that a name is not warranted at present. The genitalia differ from those of C. minutum primarily in the broader, more rounded apices of the parameres. The female of C. phacelice is distinguished from C. bernardinum and C. minutum by the unusual mouth-parts, and the straight margin of clypeus between the tubercles. The male can be recognized by the three teeth of the seventh tergite, which are in the same plane. In many specimens the median tooth is more elongate and slender than in the individual figured, while in others it is slightly shorter. Chelostoma bernardinum Michener, n. sp. This is a small black species with the form similar to that of C. phacelice. Length about 5 mm. or a little less. Female: Finely punctate, slightly shiny; facial line about as long as transfacial; clypeus closely punctate, anterior edge with distinct tubercle on each side, between which the margin is minutely crenulate; second segment of labial palpus nearly three times as long as first; maxillary palpi three-segmented, first seg- ment short and globular, second longer and third a little longer than second; glossa a little longer than facial line; flagellum with under side faintly dull reddish; horizontal area of propodeum finely rugose, shorter than metanotum; punctures of scutum sepa- rated by less than their diameters and slightly finer than C. phacelice, very slightly coarser than those of vertex; punctures of scutellum a little finer and closer than those of scutum ; tegulse piceous; wings dusky, veins and stigma black; hind metatarsus very slightly longer than remaining segments of tarsus together; January, 1938] MICHENER— CHBUOSTOMA 41 abdomen slightly more finely punctate than head and thorax ; apices of abdominal tergites narrowly brown; pubescence sparse, dull white,, forming very narrow, weak abdominal bands on tergites; scopa white. Male: Similar to female but more shiny and more finely punc- tate; scutum with punctures fine and separated by more than their diameters; seventh tergite with three long teeth, median largest, laterals slightly curved inward; median tooth directed slightly more ventrally than others so that the teeth are not on the same plane; second sternite with a transverse elevation; teeth of seventh tergite suffused with brown; margins of tergites, especially laterally, rather broadly brown; abdominal hair bands absent. Holotype female (Calif. Aead. Sci., Ent. No. 4493), allo- type male (collection of author), and six female paratypes: Tetley Park, San Bernardino Mountains, California, May 16, 1936, on Nemophila (Michener) ; six paratypes, same locality. May 16 and 23, 1936, and May 15, 1937, on Nemophila integri- folia arvd Phacelia davidsonii (Timberlake) ; two paratypes, same locality (labeled Crestline), May 13, 1934, on Nemophila inter gri folia (Timberlake) . Paratypes are in the collection of Mr. P. H. Timberlake and the author. This species is perhaps most nearly related to C. phacelice, from which it differs by the finer punctation, shorter mouth- parts, three-segmented maxillary palpi, and the more ventrally directed median tooth of the seventh tergite of the male. One specimen is abnormal, having the median ocellus reduced to a slender line, somewhat widened at one end, and with a small pit in the broad portion. Chelostoma minutum Crawford This is a small, very slender, black species; length 4 to 5 mm. Male: Second segment of labial palpus from two and one-half to nearly five times as long as first (according to subspecies) ; maxillary palpi three-segmented, first segment shortest, second somewhat longer, and third nearly or quite as long as first two together; glossa about one and one-half times as long as facial line; horizontal area of propodeum longer than metanotum, and very finely longitudinally rugose ; punctures of abdomen finer than those of thorax; seventh tergite armed with four long processes, median ones longer and broader than laterals; parameres pointed at apices; process of coxopodites practically straight; second ster- nite with transverse elevation; abdominal hair bands absent. 42 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 Female: Similar to male; facial line longer than transfacial; clypeus not closely punctured, its margin straight between the two tubercles; hind metatarsus shorter than remaining tarsal segments together. While not very much shorter than C. phacelicB, this species is nevertheless considerably more slender. The female differs from C. phacelics hy the smaller size, finer punctation, longer face, absence of abdominal hands, shorter mouth-parts, and three-segmented maxillary palpi. The male is distinguished by the same characters, in addition to the quadridentate seventh tergite. The male of C. minutum is here described for the first time. Chelostoma minutum may be separated into several sub- species, as indicated below: SUBSPECIES OP CHELOSTOUE ICNUTUU cockerelli nicutuiD marulnatum inclaulum Uarglna of abdominal nearly black nearly black broadly brownish broadly brownish tergltoB Length about 5 M. about S K* usually Just about 5 ns. over 4 mm* Median notch deeper than deeper than usually nearly half as deep as of eeventh length of length of as deep as length of lateral tergite lateral proceae lateral process length of lateral process proetsB Length of let. aT. 10. e 10.2 B.B 9.7 eegment labial oaxe 14 12 10 11 palpue min. 9 9 B B Length of 2nd. aT* 43.7 30.0 29.2 27.0 flOgD 62 Xi labial naxa 61 37 30 2B palpue oln. 37 27 27 25 Ratio aT. 4.2 3.3 3.2 2.B of 2nd. max. 4.9 3.6 3.7 3.1 to let. min. 3.6 2.9 2.B 2.5 Flower preference Eriodictvon Phacella Phacella Phacella OeeertB and desert Sierra Nevada and Lowlands of Cletrlbutlon sides of mountains mountains of southern Calif. Mt. Liable, Calif* of Calif. southern Cellf. The table above summarizes the subspecies of C. minutum. Measurements of the segments of the labial palpi were made with an eye piece micrometer, and the figures are merely relative. In order that the significance of these numbers may be judged, it should be stated that the palpal segments of fifteen specimens of typical minutum, fifteen of cockerelli, eight of marginatum, and three of incisulum were measured. January, 1938] michener-chelostoma 43 Chelostoma minutum minutum Crawford minuta Crawford, 1916, Ins. Insc. Mens., 4:102$ minutum Cockerell, 1935, Pan-Pac. Ent., 11:52 Second segment of labial palpus averaging 3.3 times as long as first; posterior margins of tergites narrowly, obscurely brownish ; emargination between median processes of seventh tergite of male deeper than length of lateral processes. Type locality: Tuolumne Meadows, California. Type in United States National Museum. California: Swartout Valley, June 3, 1928, on Phacelia david- sonii; Big Pines Camp, San Gabriel Mountains, July 13, 1927 and July 2, 1934, on Phacelia calif ornica; Tetley Park, May 15; 1937, on Phacelia davidsonii, and May 16 1936, on Nemophila integri- folia; Ledge Trail, one-fourth way up, Yosemite, June 25, 1926, on Draperia; Pohona Trail, above Yosemite, June 16, 1926, on Phacelia (all Timberlake) ; Tallac, Lake Tahoe, July 17, 1915 (E. P. Van Duzee) . The following specimens provisionally placed in minutum, may be referred to other subspecies when more specimens are known from these localities: California: Modoc National Forest, June 16, 1933, collected in flight (K. A. Salman) ; Summit Lake, Mt. Lassen, 6700 feet elevation, July 21 to 22, 1937 (F. X. Williams) ; Ridge Route, Los Angeles County, June 13, 1936 (H. A. Scullen). Oregon: Pamelia Lake, Mt. Jefferson, 3000 feet, July 27, 1907 (J. C. Brid- well, U.S.N.M.). Washington: Spokane, July 2, 1917 (M. C. Dyar, U.S.N.M.) Chelostoma minutum cockerelli Michener, n. subsp. Second segment of labial palpus about four times as long as first; posterior margin of tergites narrowly, obscurely brownish; emargination between median processes of seventh tergite of male deeper than length of lateral processes. Holotype male (Calif. Acad. Sci., Ent. No. 4494), allotype female (Calif. Acad. Sci., Ent. No. 4495), and thirteen para- types: Andreas Canyon, near Palm Springs, California, on Eriodictyon trichocalix {crassifolium) , April 10, 1936 (Mich- ener) , and thirteen paratypes with same data, April 11 (Tim- berlake) . Paratypes in collections of Prof. T. D. A. Cockerell, Mr. P. H. Timberlake, E. G. Linsley, G. E. and R. M. Bohart, and the author. 44 the pan-pacific entomologist [vOL. XIV, NO. 1 Additional localities for cockerelli are: California, mouth of Deep Creek, May 5, 1926, on Eriodictyon trichocalyx; Lone Pine Canyon, Inyo County, July 4, 1933, on Eriodictyon trichocalyx (all Timberlake) ; Palmdale, April 11, 1936 (G. E. & R. M. Bohart) ; Lancaster, April 10, 1936 (G. E. & R. M. Bohart). This form differs from typical C. minutum primarily in the longer seeond segment of the labial palpus and the longer glossa. This is the desert and semidesert form of the eomplex. It seems to prefer the flowers of Eriodictyon, while other subspeeies visit chiefly PJmcelia. Named after Prof. T. D. A. Coekerell, with whom I eollected at the type loeality. Chelostoma minutum marginatum Miehener, n. subsp. Second segment of labial palpus about three times as long as first; posterior margins of tergites rather broadly brownish; emargination between median processes of seventh tergite of male nearly as deep as length of lateral processes. Holotype male, allotype female, and seven paratypes: Puente Hills, Los Angeles County, California, on Phacelia distans, April 12, 1925, Mareh 14 and 21 and May 9, 1926 (Timberlake). Paratypes: three from Eagle Rock Hills, Los Angeles County, on Rhamnus crocea, April 14, 1933 (Miehener) ; five from Eagle Roek, on Salvia mellifera, April 7, 1936 (Miehener). The holotype and allotype will be returned to the eolleetion of Mr. P. H. Timberlake at Riverside, California. Paratypes are in the eollections of the California Aeademy of Seiences, Mr. Tim- berlake, and the author. Additional specimens of marginatum are from the following localities in California: Riverside, on Phacelia distans, March 21, 1926 (Timberlake) ; the Gavilan, on Rhus trilobata, April 18, 1937, and March 19, 1936 (Timberlake); Altadena, on Eriodictyon crassifoliu(m, May 2, 1936 (Miehener). Specimens from the Gavilan are larger and blacker than the more typical specimens of the subspecies. This form differs from typical minutum and from cockerelli in the brownish margins of the tergites. The average length of the individuals of a series of marginatum is less than that of any other subspecies. Chelostoma minutum incisulum Miehener, n. subsp. Second segment of labial palpus about three times as long as first; posterior margins of tergites rather broadly brownish; January, 1938] MICHENER— CHELOSTOMA 45 emargination between median processes of seventh tergite of male about half as deep as length of lateral processes. Holotype male and two male paratypes: Marsh Creek, Mount Diablo, California, April 26, 1937, on Phacelia (Michener) . Another male paratype bears the same data but was eolleeted by G. E. and R.i M. Bohart. Two females eolleeted at the same time are apparently indistinguishable from marginatum exeept by the slightly larger size. C. m. incisulum differs from marginatum in the relatively shallow notch between the median processes of the seventh ter- gite of the male. The size is about as large as in typical minutum. 1. Seventh tergite of Chelostoma phacelise Michener, male; 2 Same of Chelostoma calif ornicum Cresson, male; 3. Same of Chelos- toma minutum cockerelli Michener, male; 4. Same of Chelostoma minutum marginatum Michener, male; 5. Same of Chelostoma minutum incisulum Michener, male; 6. Dorsal view of male geni- talia of Chelostoma minutum Crawford; 7. Same of Chelostoma calif ornicum Cresson; 8. Posterior view of male genitalia of Chelostoma calif ornicum Cresson; 9. Lateral view of male geni- talia of Chelostoma califomicum Cresson; 10. Dorsal view of apices of parameres of Chelostoma phacelise Michener; 11. Lateral view of male genitalia of Chelostoma minutum Michener. (Figures 1-5 are drawn to the same scale.) 46 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 PROCEEDINGS OF THE PACIFIC COAST ENTOMOLOGICAL SOCIETY One Hundred and Fortieth Meeting, April 28, 1935 Annual field meeting, held in Alexander Valley, Sonoma County, California. Members present: E. 0. Essig, C. D. Duncan, R. L. Usinger, Janet Mabray, William Hovanitz, J. C. Lindahl, A. Mallis, A. E. Michelbacher, K. D. Sloop, G. R. Wilson, P. C. Ting, J. B. Steinweden, and E. G. Linsley. Visitors present: M. D. Leonard, Mrs. E. 0. Essig, Miss M. I. Essig, R. F. K. Smith, Mrs. P. C. Ting and son. Miss G. Hallauer, Mr. and Mrs. H. M. Armitage and daughters, Mrs. G. R. Wilson and family. Dr. and Mrs. J. F. Lamiman, Miss N. Bruns, William Upholt, R. Kitchell, G. Smith, R. M. Bohart, G. Bohart. The Society met at Callistoga at 10 a. m. and drove leisurely to the Alexander Valley, stopping frequently for collecting. Lunch- eon was served in the early afternoon, after which collecting w?' resumed. Although the sky was overcast and rain fell in later afternoon, many rare captures were reported. — E. G. Linsley, Secretary. One Hundred and Forty-first Meeting, September 7, 1935 Meeting held at 2 p. m. in the entomological laboratories of the California Academy of Sciences, San Francisco, California. Members present: E. 0. Essig, E. C. Van Dyke, F. E. Blaisdell, F. H. Wymore, P. C. Ting, A. R. Mead, C. D. Duncan, Janet Mabry, E. C. Zimmerman, J. L. Gressitt, E. P. Van Duzee, J. B. Steinweden, and E. G. Linsley. Visitors present: Elwyn Day bell, Willian Upholt, G. W. Schultz, E. S. Ross, Donald DeLeon. Following the transaction of other business, the nominating committee, consisting of Dr. E. C. Van Dyke, Dr. F. -E. Blaisdell, and Mr. E. P. Van Duzee, proposed that the present officers be retained for another year. The proposal was accepted and the officers unanimously re-elected. The membership committee suggested the following as mem- bers of the Society: Dr. Donald DeLeon, Mr. William Upholt, Miss Elwyn Daybell, Mr. E. S. Ross, and Mr. G. W. Schultz. They were unanimously elected. Prof. Essig announced the appointment of Dr. F. E. Blaisdell to the publication committee of the Pan-Pacific Entomologist to serve in place of Mr. Grant Wallace. He also extended to Mr. Van Duzee the thanks of the Society for his splendid work in editing the journal, and to Mr. E. R. Leach for his services as the publication’s treasurer. Mr. Linsley read a letter from the Hawaiian Entomological So- ciety inviting the Pacific Coast Entomological Society to Honolulu January, 1938] PACIFIC COAST ENT. SOCIETY 47 during the summer of 1937 or 1938. After considerable discussion it was decided to accept this invitation and to try and gain the support of other similar organizations of the Pacific Coast. Prof. Essig then introduced Mr. Elwood Zimmerman who pre- sented an illustrated lecture on his recent trip through Polynesia as a member of the Mangarevan Exposition of the Bishop Museum, in Honolulu. Mr. Zimmerman discussed some of the peculiarities of island faunas and floras and exhibited some of the material which he had collected. Following a discussion of Mr. Zimmer- man’s talk, the meeting was adjourned. — E. G. Linsley, Secretary. One Hundred and Forty-second Meeting, November 30, 1935 Meeting held at 2 p. m. in the entomological laboratories of the California Academy of Sciences, San Francisco, California. The following members were present: E. 0. Essig, R. W. Doane, H. E. Burke, K. A. Salman, A. E. Michelbacker, J. L. Gressitt, D. De Leon, J. Reitzel, E. P. Van Duzee, H. H. Keifer, J. 0. Martin, P. C. Ting, G. F. Ferris, F. R. Platt, E. C. Van Dyke, A. R. Mead, E. R. Leach, E. S. Ross, C. D. Duncan, W. H. Lange, Jr., E. C. Zimmerman, William Upholt, Isabel McCracken, William Hovanitz, and E. G. Linsley. The following visitors were also present: L. B. Boyer, S. F. Bailey, G. E. Bohart, R. M. Bohart, M. A. Stewart, C. L. Lin, E. C. Day, J. C. von Blocker, Jr., D. B. Scott, Jr., Laura M. Henry, Louise Henry, Edith-Mae Grim- menstein, Edgar Smith, Arthur Smith, P. A. Harvey, and M. A. Cazier. The minutes of the previous meeting were read and accepted. The Society unanimously elected to annual membership: Dr. M. A. Stewart, Dr. S. F. Bailey, Dr. Paul Harvey, Messrs. Richard and George Bohart, Miss Louise Henry, Miss Edith-Mae Grim- menstein, Mr. David Scott, Messrs. Arthur and Edgar Smith, Mr. Mont A. Cazier, and Mr. J. C. von Blocker, Jr. Upon the recom- mendation of Mr. Linsley, honorary membership in the Society was extended to Dr. Lawrence Bruner. Mr. Leach reported on the financial status of the Pan-Pacific Entomologist and made a plea for new subscribers. Mr. Zimmerman presented to the historicalj files of the Society a letter written by Charles Fuchs, early California Coleopterist. After the completion of matters of business, a symposium was held on “Some Unsolved Problems of Entomology.” Professor Essig introduced the subject by a discussion of certain unsolved problems in the field of insect biology. He par- ticularly stressed the inadequacy of our knowledge of insects in relation to climate, insect populations, aestivation and hibernation, and geographical distribution. 48 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 1 Professor Essig was followed by Dr. Salman who discussed some problems of Forest Entomology: He brought out the need for reduced costs of control^ studies in nutrition, host relationship, inter-relationships of forest insects, and improved methods of handling plant material experimentally. Dr. Van Dyke spoke of some of the unsolved problems' in insect taxonomy and indicated a need for more phylogenetic studies of insects. He also mentioned a number of unsolved life history prob- lems {Spondylis, Dystaxia, Schizopiis, and' others) as well as cer- tain “lost species” (Omus submet allicus, Geotrupes occidentalis, etc.) Following Dr. Van Dyke’s remarks there was a general dis- cussion by Dr. Ferris, Dr. Stewart, Mr. Keifer. Mr. Van Duzee, after which! the meeting adjourned. — E. G. Linsley One Hundred and Forty-third Meeting, March 7, 1936. Meeting held at 2:00 p, m. in the entomological laboratories of the California Academy of Sciences, San Francisco, California. Members present: E. C. Van Dyke, J. 0. Martin, E. R. Leach, A. R. Mead, A. E. Michelbacher, S. F. Bailey, Dudley Moulton, G. F. Ferris, G. R. Wilson, J. B. Steinweden, Wm. Hovanitz, Isabel McCracken, D. B. Scott, Jr., E. 0. Essig, Laura M. Henry, A. T. McClay, E. J. Fredrick, and R. H. Freese. Visitors present: J. R. Clark, W. E. Simonds, Janet Mabry, and Paul DeBach. The Society unanimously elected Miss Mabry and Mr. DeBach to membership. Prof. Essig appointed Mr. Steinweden (chairman), Mr. Wilson, and Mr. Ting as a committee to determine the time and place of the annual field meeting. Dr. Van Dyke announced that Mr. Van Duzee, who had been seriously ill, was improvipg and that during his illness he would assist with the editing of the Pan-Pacific Entomologist. Prof. Essig then introduced Mr. Dudley Moulton, former Direc- tor of Agriculture for the State of California, who presented an interesting discussion of some of the experiences he had encountered in the study of the Thysanoptera. Mr. Moulton exhibited his note- books, check-lists, keys, and catalogues of the order which he has maintained up to date. He mentioned that about one thousand papers have been published on the Thysanoptera and exhibited photomicrographs of many types. Dr. Bailey briefly outlined the work being carried on at Davis, Calif., on the transmission of tomato wilt virus by thrips. At the close of the discussion, the Society was favored with a display of remarkable drawings of genera of Coccidse, Which had been prepared by Prof. Ferris. — E. C. Zimmerman, Secretary pro tern. INSECT BOXES Standard size black insect box with sides of box and cover made of ^ 4 " redwood. The top, bottom and shoulders are of heavy cardboard. Inside dimensions: I2^x8f4x254 inches. Prices: 1 to 12 — 60 cents each. 13 to 24 — 50 cents each. With Masonite bottom, 15 cents extra. With glass top, 50 cents extra. Prices for larger quantities on request. RAISIN AND THIEBAUT BROS., LTD. 346 First Street, San Francisco, Calif. ADVERTISING RATES PAN-PACIFIC ENTOMOLOGIST Per Year Whole Page.. 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Vol. XIV April, 1938 No. 2 THE Pan -Pacific Entomologist Published by the Pacific Coast Entomological Society in co-operation with The California Academy of Sciences CONTENTS LINSLEY, NOTES ON PLEOCOMA 49 LING, A FEW CADDIS FLIES IN THE COLLECTION OF THE CALIFORNIA ACADEMY OF SCIENCES 69 DRAKE, MEXICAN TINGITID^ 70 DRAKE AND HARRIS, CONCERNING MEXICAN GERRID^ 73 HUNGERFORD, REPORT UPON SOME WATER BUGS FROM MEXICO 76 HUNGERFORD, A NEW HYDROMETRA FROM NEW CALEDONIA AND AUSTRALIA 81 USINGER, DORSAL ABDOMINAL SCENT GLANDS IN NYMPHS OF LYG^ID^ 83 LEECH, A NEW SPECIES OF CCELAMBUS FROM CALIFORNIA 84 MALLIS, THE CALIFORNIA FIRE ANT AND ITS CONTROL 87 ESSIG, THE ORNATE APHID, NEW TO NORTH AMERICA 92 San Francisco, California 1938 THE PAN-PACIFIC ENTOMOLOGIST Published quarterly in January, April, July and Oetober by the Paeifie Coast Entomologieal Society in co-operation with the California Academy of Sciences, Domestic and foreign subscriptions $2.00 in advance. Sub- scriptions should be sent to the treasurer, E. R. Leach, De- partment of Eiitomology, California Academy of Sciences, Golden Gate Park, San Francisco, California. Make checks payable to the “Pan -Pacific Entomologist,” Manuscripts for publication and communications regard- ing non-receipt of numbers, change of address, requests for sample copies, etc., should be addressed to the editor, Mr. E. P. Van Duzee, California Academy of Sciences, Golden Gate Park, San Francisco, California. Advertisements will be accepted for the back cover pages. For rates address the editor or treasurer. Twenty -five copies or more of author’s extras will be fur- nished free on request. Additional copies will be supplied at cost of publication if a request is received with the manu- script. Subscribers failing to receive their numbers will please notify the editor at as early a date as possible. ★ ★ THE PACIFIC COAST ENTOMOLOGICAL SOCIETY Officers President Vice-President Secretary-Treasurer Publication Committee Editor E. P. Van Duzee Associate Editor E. C. Van Dyke Treasurer E. R. Leach Business Manager R. L, Usinger 1938 1939 1940 G. F. Ferris E, G. Linsley C. D. Duncan F. E. Blaisdell F. X. Williams J. A. Comstock E, O. Essig, Chairman S. F. Bailey H. H. Keifer ★ ★ Published at the California Academy of Sciences, Golden Gate Park, San Francisco, California. Entered as second class matter, February 10, 1925, at the postoffice at San Francisco, California, under Act of August 24, 1912. C. D. Duncan R. L, Usinger E. G. Linsley The Pan-Pacific Entomologist VOL. XIV, No. 2 April, 1938 NOTES ON THE HABITS, DISTRIBUTION, AND STATUS OF SOME SPECIES OF PLEOCOMA (Coleoptera, Scarabaeidae) BY E. GORTON LINSLEY University of California The species of Pleocoma constitute one of the most inter- esting and remarkable genera of North American Scarabaeidae. The group owes its uniqueness in part to the peculiar habits of the males, which fly and seek their mates during the early winter rains, and in part to the slow-moving, subterranean females, which are flightless, thus greatly inhibiting dispersal and distri- bution of species. A survey of the literature of Pleocoma ilidicates that interest in the group has been more or less cyclical. If published notes and records are a valid criterion, there have been five main periods of interest set apart by intervals of ten to fifteen years. The first period was that of 1856-57, when Dr. J. L. LeConte made known the type species. A second period occurred be- tween the years of 1870 and 1874, when three additional articles appeared. The third and greatest period of activity was that of 1883-1890, when the characters and habits of many of our species were made known through the medium of eleven published papers and notes. This period was characterized by a great contro- versy over the systematic position of the genus, and reached its climax in the excellent revision of Dr. George Hom\ in 1888. A revival of interest occurred between 1906 and 1918, when four papers upon southern California species appeared, three from the pen of Dr. H. C. Fall and one from Mr. A. C. Davis. Again, in 1933 and the two years following, seven additional articles on Pleocoma were published, notable among which were a re- vision of the genus by Mr. A. C. Davis^ and an article on some old and new species by Mr. E. R. Leach^ These two papers shed ^Horn, G. H., 1888, Review of the species of Pleocoma, with a discussion of its systematic position in the Soarabseidse. Trans. Am. Ent. Soc. 15:1-17, figs. ^ Davis, A. C., A revision of the genus PleocoTua. Bull. So. Clalif. Acad. Sci., 33:123-130; 34:4-36, figs. ® Leach, E. R., 1933. Two old and two new Pleocomas. Pan-Pac. Ent. 9:184-187. 50 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 much new light on the status and distribution of certain species, but raised a few questions which seem to call for further comment. Pleocoma fimbriata Le Conte and P. TULARENSis Leach The status of these two species has been discussed so often by Mr. Davis and myself, both in prinP’® and in friendly corre- spondence, that I hesitate to approach the subject again. How- ever, in his recent revision of the genus, Mr. Davis treats P. tularensis as a variety of fimbriata. Whatever the status of this much disputed Pleocoma may really be, it can hardly be consid- ered a variety of the latter, since the two forms .differ both morpho- logically and geographically. An examination of the type speci- men (July, 1937) has confirmed the opinion expressed pre- viously by the writer* that the true fimbriata is that species which occurs commonly in the vicinity of Placerville, California (as has been stated by Horn, Fall, and Leach). In the LeConte type the pronotum is broadly rounded behind, the antennal club barely long enough to surpass the base of tbe funicle. In tularensis the pronotum is subangulate behind and the antennal club is long enough to reach nearly to the base of the scape. Both of these characters are evident to the naked eye and are more .dis- tinctive than the difference in the shape of the basal segments of the funicle and the sculpturing of the elytra, which also sepa- rate the two species. A long series of tularensis from Tulare, Fresno and Madera counties, has been compared with an equally long series of fimbriata from Placer County and no intergrada- tion has been observed within these characters, although both species are variable within well defined limits. Mr. Davis, in an attempt to determine the status of these two species, pub- lished a careful set of measurements of the segments of the an- tennae. His conclusions were unfortunately weakened, however, by tbe fact that his comparisons were made between Tulare County examples and specimens from Fresno County (both obviously tularensis) rather than the true fimbriata from the north. Pleocoma edwardsi LeConte and P. ulkei Horn A very important contribution in Mr. Davis’ recent paper was * Linsley, E. G., 1935, Pan-Pac. Ent., 11 :13. ® Davis, A, C., 1936, Bull. So. Calif. Acad., ScL, 84:19 APRIL, 1938] LINSLEY— PLEOCOMA 51 the straightening out of a part of the confusion which has existed in the literature between P. staff Shaufuss and P. edwardsi LeConte. Mr. Davis demonstrated that edwardsi, known to him only by the type labelled “Calif.”, is a valid species and differs from staff in the absence of hair from the scutellum, etc. Re- cently, Mr. Leach® recorded edwardsi from Nevada County, Cali- fornia, under the name “ulkei Horn.” In ulkei, however, the fourth segment of the antenna is not lamellate, the pronotum is widest anterior to the middle, the basal angles both distinct, the scutellum as long as broad, and the posterior tarsi nearly as long as the tibiae. Additional examples of edwardsi before the writer are from Brownsville, Yuba County, Calif., collected by J. J. DuBois. The female has apparently never been described. Some of its char- acters follow: Female: Oblong oval; dark reddish-brown; clypeus narrowly emarginate at middle of apex, vertical horn obsolete, represented by a vague transverse ridge; pronotum a little more than one and one-half times as broad as long; anterior angles obtusely rounded, separated by less than one-half the basal width of the pronotum, lateral margins nearly parallel over basal half; disk with an indistinct transverse ridge, declivous in front, posterior angles obtusely angulate; scutellum glabrous, with a few scattered punctures; elytra widest at apical one-fourth, sutural and gemi- nate striae deeply and distinctly impressed; pubescence of under- side golden. Length 31 mm. Described from an example with the antennae missing. In general, however, the female of this species may be recognized by the oblong form and deeply impressed elytral striae. Pleocoma staff Schaufuss and P. dubitalis Davis Pleocoma staff was described from “California mer.” and the specimen in the Horn collection (Philadelphia Academy of Sciences) labelled staff” is likewise from California. Since this latter example seems to be an authentic specimen, agreeing with Schaufuss’ description in the pubescent scutellum, size, color, etc., there seems little reason to longer doubt that staff is truly a California species. The writer suspects that it occurs in the Sierra Nevada Mts., somewhere near the range of edwardsi. In the collection of Mr. E. R. Leach there is a series of hi- ® Leach, E. R., 1933, Pan-Pac. Ent., 9 :184. 52 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 colorous males from Colton, Clackamas County, Oregon, in the foothills of the Cascades, that run to staff in Mr. Davis’ key. Material at hand from Forest Grove, Oregon, in the foothills of the Coast Ranges, all agrees with the “variety” dubitalis Davis. It appears, however, that neither of these represents the staff of Schaufuss, and it would therefore seem best to consider dubi- talis Davis as a distinct species having two races, one concolorous, the other bicolorous, both occurring in Oregon. The bicolorous race may be designated as P. dubitalis leachi Lansley, new sub- species (Holotype male, and numerous paratypes, in the collec- tion of Mr, Leach), all from Colton, Oregon, found along the edges of a clearing in a forest of Pseudotsuga taxifolia. A male and female from West Linn, Oregon (J. J, DuBois) also repre- sent this form. The races may be separated as follows: Male with pronotum dark brown, elytra black or fusco-piceous, pubescence ochraceous; female with pronotum dark ferrugine- ous, elytra ferrugineous, oblong, truncate behind, anterior projection of clypeus scarcely one-tbird as long as broad, apices acute, median incision shallow, pronotal punctures shallow and indistinct, pubescence ociiraceoMs.-.-dubitaUs s. str. Male with pronotum fusco-piceous, elytra fulvous or brown, pubescence golden yellow; female with pronotum dark brown, elytra fulvous, oval, broadly rounded behind, anterior projec- tion of clypeus at least one-half as long as broad, apices broadly rounded, median incision moderate, pronotal punc- tures deep and distinct, pubescence golden yellow dubitalis leachi n. subsp. Pleocoma minor Linsley, new species Male: Relatively small, oval, dull, brownish-black, clothed with golden yellow pubescence. Head moderately sparsely pubescent; frons coarsely closely punctured; vertical horn conical, pointed, not emarginate; ocular canthi broadly rounded; clypeus coarsely, contiguously and! subcontiguously punctured, sides arcuate, apex triangularly emarginate, apices acutely rounded; antennae pale reddish, scape subconical, second segment moniliform, broader than long, third slender, about three and one-half times as long as greatest width, apex a little wider than base but not as wide as second, fourth with a short process, five to eleven forming the club, lamella of fifth segment scarcely one-third as long as that of sixth. Pronotum nearly twice as wide as long, broadest a little behind the middle, very feebly declivous in front and without a APRIL, 1938] LINSLEY— PLEOCOMA 53 transverse discal ridge, median longitudinal impression distinct, apical one-third closely punctured and clothed with short, erect hairs; surface very finely and obscurely punctured. Scutellum clothed with golden yellow hairs. Elytra not quite one and one- half times as long as broad, but little wider behind the middle; sutural striae feeble, geminate barely evident, interstriae weakly rugose. Legs slender, tarsi shorter than tibiae, pale reddish. Ventral surface densely clothed with long, golden yellow pu- bescence. Length: 18 mm.; breadth 10 mm. Holotype, male an,d one paratype (collection of Dr. W. J. Chamberlin) from Hood River, Oregon, October 23, 1930, D. C. Gillespie collector. The writer is indebted to Mr. A. T. McClay and Dr. W. J. Chamberlin for the privilege of studying these specimens. This species shows some relationship with P. dubitalis Davis, but differs at once in the distinct and pubescent longitudinal pro- notal impression and absence of the transverse pronotal ridge, as well as in the smaller size (18 mm. as compared with 23-29 mm.), dull luster, feeble punctation and striae, and pale reddish antennae and tarsi. If the type specimens are of average size this is one of the smallest known species of Pleocoma, being rivalled only by small examples of P. hirticollis vandykei Linsley. Pleocoma crinita Linsley, new species Male: Moderate sized, oval, castaneous, clothed with pale yellow hair. Head rather densely clothed with erect hairs ; f rons coarsely, closely punctured; vertical horn conical, pointed at apex; ocular canthi subquadrate; clypeus prominent, sides slightly arcuate, apex triangularly emarginate, apices angulate; antennee reddish brown; scape moderately stout, subconical, second segment moniliform, about twice as broad as long, third about three and one-half times as long as basal width, anterior margin obtusely angulate, fourth with a short process, segments five to eleven forming club, lamella of fifth segment less than half as long as that of sixth segment. Pronotum nearly twice as broad as long, widest at the broadly rounded posterior angles; median longitudinal impresssion dis- tinct, coarsely and subcontiguously punctured, densely clothed with long erect yellow hairs; remaining surface shining, moderately coarsely, irregularly punctured. Scutellum very densely clothed with long hairs. Elytra together barely longer than broad, sub- oval; sutural and geminate striae deep, interstriae coarsely punc- tured. Legs densely fimbriate, reddish brown, the apices and serra- tions darker; posterior and intermediate tarsi distinctly shorter than the tibiae; ventral surface densely clothed with hair. Length 20 mm.; breadth 12 mm. 54 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 Holotype male, and one paratype male, from Glenwood, Klick- itat County, Washington, May 1936, in the collection of Dr. M. H. Hatch. The writer is indebted to Dr. M. H. Hatch and Mr. A. T. McClay for the opportunity of studying these examples. This very distinct species differs at once from all others ex- cept hirsuta in the dense longitudinal band of erect hairs on the pronotum, and from all except hoppingi, simi, and badia in the uniform castaneous color. In Mr. Davis’ key it runs near P. hirticollis and P. hoppingi, but may be distinguished from both of these by the shape of the ocular canthi and clypeus, pubescent scutellum, deeply striate elytra, etc. This is the first Washington record for a species of Pleocoma. Pleocoma conjungens Horn This species was described in 1888 from three males taken near Santa Cruz, California, and from that year until 1933 it was not recognized again. In the latter year Mr. Leach recorded four males from Mokelumne Hill, Calaveras County, California, which apparently represented conjungens. These examples were larger than the measurements given by Horn, but otherwise agreed rather well with the characters enumerated by that author. Since the Santa Cruz record had remained unverified for nearly fifty years and many early records of Coleoptera had proven notor- iously incorrect, it was not unreasonable to suppose that the Calaveras County specimens were really the Horn species. Re- cently, however, the writer has examined a male of conjungens from Waddell Creek, Santa Cruz County, collected on December 12, 1929, by Mr. Fred Blanchi. A female from Santa Cruz, November 30, 1936, submitted for determination by Mr. J. W. Tilden, likewise appears to represent this species. It is similar to hirticollis, but differs in the more deeply cleft clypeal margin, less coarsely punctured pronotum, and slightly different antennal structure (fourth segment not angulated internally and the lamella of the fifth segment shorter). A second female from the Santa Cruz region (5 miles south of Carmel, Monterey Co., August 5, 1924, L. S. Slevin collection, Calif. Acad. Sci.) belongs in another part of the genus near hehrensi Lee., differing in the proportions of the antennal seg- APRIL, 1938] LINSLEY— PLEOCOMA 55 ments (third segment shorter and more cylindrical, fourth and fifth moniliform, sixth angulat&d, seventh with a process nearly as long as that of the eighth). This example apparently repre- sents an undescrihed species. Pleocoma blaisdelli Linsley, new species Male : Large, robust, oval, dark brownish to black. Head mod- erately coarsely, closely punctured; clypeus reflexed, apex broadly emarginate, anterior angles acute, surface clothed with coarse, golden hairs, vertical horn elongate, sides subparallel but narrow- ing slightly to the apex which is subangularly emarginate; anten- nae reddish-brown, scape elongate, conical, second segment moni- liform, not quite as long as broad, third about four times as long as broad, angulate, fourth with a short lamella, segments five to eleven forming the club. Pronotum dullish, about twice as broad as long, widest at base; anterior angles very obtuse, basal margin sinuate; disk closely punctured, most of the punctures less than one puncture-width apart except along median line which is polished, impunctate; lateral margin with a semi-trans- lucent reddish spot at middle; scutellum polished, punctures elongate, pit-like. Elytra black, about one-eighth longer than broad, barely widest at apical one-third; sutural striae shallow, geminate striae very feeble. Ventral surface rufo-castaneous, clothed with yellowish-brown pubescence. Femora rufo-castaneous, tibiae and tarsi reddish-brown, the latter longer than the tibiae. Length : 27 mm. Holotype male (No. 4591, Calif. Acad. Sci., Ent.), and two paratypes, both males, taken at Mokelumne Hill, Calaveras County, California, in October, by Dr. F. E. Blaisdell. P. blaisdelli is related to P. conjungens Horn, but is larger (27-28 mm. as compared with 22-23.5 mm.) and differs in having the first segment of the funicle angulate, the pronotum dullish, more closely punctured, with the posterior margin sinuate, and the scutellum with elongate pits, rather than with shallow punc- tures. This is the species recorded by Mr. Leach" as conjungens. Pleocoma hirticollis Schaufuss Two rather well-marked races of this species exist. One occurs in the foothills of the Sierra Nevada Mountains, the other in the region of San Francisco Bay. The males of these two subspecies may be distinguished as follows: ’’ Leach, E. R., 1933, Pan-Pac. Ent., 9 :185. 56 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 Third segment of antenna angulate, lamella of fourth segment more than one-half as long as that of fifth, lamella of eighth segment usually longest; elytra chestnut brown; clypeus sep- arated from ocular canthi by a distinct notch. 25-27 mm. Yuba and Nevada Counties, Calif. hirticollis s.str. Third segment of antenna not angulate, lamella of fourth segment much less than one-half as long as that of fifth, lamella of ninth segment usually longest; elytra piceous to black; clypeus not separated from ocular canthi by a notch. 17-20 mm. Sonoma and Alameda Counties, Calif hirticollis vandykei n. subsp. Holotype male (No. 4592, Calif. Acad. Sci., Ent.) from Sonoma Co., Calif., Oct. 10 (Van Dyke collection, C.A.S.). Paratypes: five males, Sonoma Co., Calif. (Van Dyke collec- tion, C.A.S.) ; one male, Sonoma Co., Calif. (Blaisdell collec- tion, C.A.S. ) ; one male, Sonoma Co., Calif., (M. Robinson col- lection) ; and one male, hills back of Oakland, Calif. (C.A.S. collection) . Pleocoma behrensi LeConte As far as is known to the writer, this species occurs only in the region immediately surrounding San Francisco Bay. An examination of the specimen upon which Mr. Davis’ based his Mt. St. Helena, Napa Co., record reveals that it is P. sonomcB^ and the same is probably true of his Sonoma County examples, although I have not seen all of these. The host plant of P. behrensi is the chapparal broom, Baccharis pilularis. Pleocoma carinata Linsley, new species Male: large, broadly oval, black, clothed with golden yellow pubescence. Head sparsely clothed with erect hairs; vertical horn large, stout, conical, coarsely and closely punctured; ocular canthi broadly rounded, concave, almost impunctate; oblique supra-orbi- tal Carina prominent; clypeus short, sides feebly sinuate, apex slightly emarginate, surface coarsely, closely punctured; antennae brownish, scape subconical, second segment not quite twice as broad as long, third angulate anteriorly, a little more than twice as long as basal width, fourth nearly as long as broad, fifth shorter than fourth, angulate anteriorly, segments seven to eleven forming club, the tenth longest; lamella of seventh segment less than one-half as long as that of eighth. Pronotum twice as broad as long, widest a little behind the middle, posterior angles broadly rounded; surface distinctly but not coarsely punctured, the punc- tures mostly from less than one to nearly three puncture-widths APRIL, 1938] LINSLEY— PLEOCOMA 57 apart on disk, nearly contiguous in the groove of the broad anterior median impression, which is sparsely hairy; lateral impressions distinct but shallow. Scutellum about as long as broad, moderately coarsely, closely, but shallowly punctured, sparsely clothed with coarse, yellow-brown hair. Elytra about one-eighth longer than broad, surface shining, sparsely and shallowly punctured; sutural striae distinct toward apex, evanescent toward base; geminate striae very feeble, indicated over basal two-thirds by shallow punctures. Legs dark brown; posterior and intermediate tarsi shorter than tibiae. Ventral surface clothed with golden yellow hairs. Length: 22mm.; breadth 13 mm. Holotype male (No. 4593, Calif. Acad. Sci., Ent.) and one paratype male, in collection of author, taken at the base of Mt. McLoughlin, near Butte Falls, Jackson Co., Oregon, December 15, 1937, by Mr. C. P. North. The specimens were very kindly presented to the writer by Mr. D. F. Tillotson. This species is apparently related to P. simi Davis and P. shastensis Van Dyke. From the former it differs in the black, rather than canstaneous, color, the sculpturing of the elytra and pronotum, the strong supra-orbital carina, and the lamellate seventh segment of the antennae. From shastensis it may be distinguished by the shape of the clypeus and ocular canthi, the distinct antero-median impression of the pronotum, and the golden, rather than .dark brown, pubescence, etc. Pleocoma trifoliata Linsley, new species Female: Narrowly oval, not quite twice as long as broad; reddish brown. Head coarsely, irregularly punctured, the punc- tures poorly defined; clypeus broader than long, apical margin reflexed, feebly sinuate, middle with a small angular notch, surface clothed with moderately long, erect, golden pubescence; ocular canthi subtriangular, anterior and posterior margins feeble, equally arcuate; vertical horn very short, broad, emarginate; antennae tri-lamellate, second segment broader than long, third subconical, its width at apex about two thirds its length, segments four and five wider than long, subangulate, sixth transverse, angulate, eighth with a short process which is less than one-half as long as the lamella of the ninth, segments nine to eleven forming the club. Pronotum about twice as broad as long, widest just behind the middle, posterior angles obtusely rounded; surface coarsely, mod- erately closely punctured, punctures of disk tending to become confluent; pubescence short, scattered, suberect, golden; scutellum glabrous, with a few shallow punctures at base. Elytra one and 58 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 one-fourth times as long as broad, widest about middle, geminate striae very feeble, surface shining, slightly roughened but without distinct punctures. Ventral surface clothed with moderately long, dense, golden pubescence. Length 28 mm., breadth 16.5 mm. Holotype, female, collected at Seward, Alaska, May 1913, by Mr. J. A. Kusche, and “found dead in root of Abies douglasi while digging for Cychrus marginatus”. The type is deposited in the collection of Mr. Mark Robinson, who very kindly sub- mitted the example to the writer for study. This interesting species is most similar to P. rickseckeri Horn, but differs in the narrower form, more elongate elytra which are less broadened apically, the more coarsely and closely punctured pronotum with the discal punctures becoming con- fluent, the absence of the short median impunctate line just an- terior to middle of disk, etc. In rickseckeri the clypeus is bilobed with the lobes broadly rounded, the vertical horn is larger, and the lamella of the eighth antennal segment is more than one-half as long as that of the ninth, thus producing a quadri-lamellate rather than a tri-lamellate club. The discovery of this species in a locality nearly fifteen hundred miles north of any previously known record for the genus, immediately raises a question as to the validity of the data. It is a fact that the late Mr. Kusche collected in Alaska in 1913, and the other species with which the Pleocoma was supposed to have been found {^'^Cychrus marginatus'^) is known to occur at Seward (also in British Columbia, Washington, Ore- gon) . It is problematical as to what Mr. Kusche meant by Abies douglasi”, however, since there is no Abies of that name. Pseudotsuga taxifolia is commonly known as “Douglas Fir”, and if this is the plant which he had in mind, it does not occur north of British Columbia, although there are other trees growing at Seward which might possibly have been mistaken for it. In any event, the species which Mr. Kusche collected appears to be distinct from any which have been described and, until the locality can be either verified or corrected, it seems best to accept it at its face value. The first record of Pleocoma from Utah was viewed with similar skepticism but Mr. Davis has recently described a second species from that State. (To be continued) APRIL, 1938] LING— CADDIS FLIES 59 A FEW NEW CADDIS FLIES IN THE COLLECTION OF THE CALIFORNIA ACADEMY OF SCIENCES ^ BY SHAO-WIN LING Rhyacophila betteni Ling, n. sp. Head brownish with yellowish hairs; vertex yellowish brown, warts prominent; face yellow with golden hairs. Antennae stout, covered with short brownish hairs, brownish at base, darker at middle and paler toward tip. Maxillary palpi long and slender, grayish black with long black hairs at basal segments. Prothorax light above, with very prominent warts bearing long brownish yellow hairs. Meso- and metathorax dark brown above, pale at sides. Legs all uniformly brownish yellow; spurs slightly darker. Fore wings narrow, postapical margin very oblique; brownish in color with numerous yellowish spots, especially marked on mar- gins, one big distinct spot near the base of cell R^; pubescence blackish and golden mixed; stigma distinct, dark brown, with a few golden spots; hyaline spot on the cross-vein m-cu distinct. Veins brown with black microsetae; cell extends slightly farther back toward base of wing than cell Rg. Hind wings brownish, lighter at base; stigma distinct, darker in color. Abdo- men black above, light yellowish on sides and beneath. Genitalia of male light brown, paler toward tip; clasper very long; the distal segment narrowing down suddenly near the middle, very slender and finger-shaped toward tip. Length of fore wing, male 13.5 mm., of hind wings 12 mm. Type No. 4620, Calif. Acad. Sci., Ent. Type locality Mt. Tamalpais, Marin Co., California, February 24, 1907 (F. X. Williams) . ^ In 1932 the caddis fiies in the collection of the California Academy of Sciences were sent to Prof. James G. Needham of Cornell University for determination. These were turned over by Prof. Needham to Mr. Shao-win Ling, a student at Cornell University, for study and a report on them has been received by the Academy. This report was too extended for immediate publication in the Proceedings of the Academy and it has been thought best to publish separately in the Pan-Pacific Entomologist the descriptions of those species the types of which are now in the collection of the Academy. Unfortunately the figures of details of these new species are made up in plates with unrelated material and will have to be published later in connection with the general report on the Academy material. — Editor, 60 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 Rhyacophila californica Ling, n. sp. General appearance similar to R. bipartita. Head dark brown; compound eyes black, ocelli white; antennee grayish brown, paler at base and darker toward tip, slightly annulated with dark gray at middle of each segment. Vertex with prominent warts, hairs either black or yellowish; face brown with dark-brown hairs; maxillary palpi dark, labial palpi paler, basal segment yellowish. Prothorax light yellowish gray with brownish hairs; meso- and metathorax dark brown above, light brown on sides and beneath. Legs yellowish brown; lighter at base, darker toward tip. Spurs normal, grayish black. Fore wings quite slender, postapical mar- gin oblique; uniformly grayish brown in color with yellowish and dark spots especially along the margin; stigma not distinct. Hind wing hyaline, paler near base; stigma distinct. Abdomen black above and grayish brow'n beneath. Genitalia grayish brown; dorsal piece triangular when viewed from side, with a small distal piece; clasper moderate in size, first segment small at base and wider at tip, second almost straight and truncate at tip; penis slender with two pairs of spines at tip, one pair pointing straight backward and the other pointing downward and forward on each side. Length of wings of male: fore wing 12 mm., hind wing 10 mm. Type No. 4621, Calif. Acad. Sci., Ent. Type locality Lague- nitas, Marin Co., California, Feb. 23, 1927 (H. H. Keifer). Rhyacophila complicata Ling, n. sp. Head brownish; vertex slightly paler with silvery and brownish hairs; ocelli light brown; antennee dark brown, slightly annulated with black at end of each segment; face brownish; maxillary palpi slender, brownish, with long brownish hairs at basal segments; labial palpi brownish, slightly club-shaped at end. Thorax dark brown above, lighter at sides and beneath; legs pale brown, tarsi darker, coxae silvery and brownish in color. Fore wing pale brown without yellowish spots or markings; stigma not distinct; veins pale; cell reaching slightly farther backward to the base of wing than cell R 2 ; cell Mg slightly longer than pedicel. Hind wing paler, stigma pale. Genitalia brownish, complicated, distal joint of clasper bifid at tip. Length of wings of male: fore wing 10 mm., hind wing 9 mm. Type No. 4622, Calif. Acad. Sci., Ent. Type locality Ore- gon, October 12. APRIL, 1938] LING— CADDIS FLIES 61 Rhyacophila doddsi Ling, n. sp. Small in size and pale in color. Head black with dark yel- lowish hairs; antennee slender, brownish in color; face black; maxillary and labial palpi yellowish. Prothorax brownish, warts and hairs pale golden. Meso- and metathorax dark browP; with brownish hairs ; legs brownish, coxae darkest, tarsi lightest. Spurs brown. Fore wings moderately broad; uniformly light brownish in color without spots or markings; stigma distinct; veins pale; cell R 2 cell reaching back about to the same level; cell Mg about as long as pedicel. Hind wings pale; stigma distinct; veins pale. Genitalia prominent; dorsal piece small, distinctly bifid; basal segment of clasper long and thick, distal segment about one- third as large, with a sharp incision at anterior margin; penis simple and slender; accessory appendage fused at middle to form a single piece, club-shaped and provided with dense short hairs at end. Type No. 4623, Calif. Acad. Sci., Ent. Type locality Yellow- stone Park, July 21; also from Colorado (G. S. Dodds). Rhyacophila novarotunda Ling, n. sp. Length of wings of male: fore wing 9 mm., hind wing 7.5 mm. General appearance very similar to R. rotunda. Head black, with golden hairs. Antennae slender, black in color, slightly annu- lated with pale at base of each segment, especially those near the base. Maxillary and labial palpi black. Thorax black, pro- vided with golden and brownish hairs. Coxae dark, with short golden hairs; femora black at base, lighter toward tip; tarsi light, darker at tip of each joint; spurs normal, grayish yellow. Wings brownish with numerous yellowish dots, especially distinct near margins; fore wings with cell Rg slightly farther back than cell R^; cell Mg slightly shorter than pedicel. Hind wijngs pale at anal area; stigma distinct. Abdomen black. The genitalia differ from those of R. rotunda in that the dorsal piece is more slender and longer, that the distal segment of the clasper is more distinctly broadened and concave at tip, and that the accessory appendages of the penis are broader toward tip and provided with a dark spot. ■Length of wings of male: fore wing 10 mm., hind wing 9 mm. Type No. 4624, Calif. Acad. Sci., Ent. Type locality Home- stead Inn, Mt. Hood, Oregon, July 6, 1927 (Van Dyke). Another specimen is from Mt. Adams, Washington, July 30, 1925 (Van Dyke) . 62 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 Rhyacophila oregonensis ling, n. sp. Pale yellowish in color. Head light brown; vertex brown, warts and hairs yellowish; cheeks brownish; face pale; maxillary and labial palpi light yellowish; antennae slender, brownish, annu- lated with pale yellow between joints. Compound eyes black; ocelli brownish. Prothorax light brown, with very distinct warts. Meso- and metathorax brownish above, light brown on sides and beneath ; legs light brown at base, lighter toward tip, with a dark ring at each tarsal joint; spurs brownish, inner spur of hind tibia slightly shorter than the outer one and bifid at tip. Fore wings broad, light brown in color and provided with numerous irregular brownish spots, especially along the margins; stigma pale with- out any markings; veins brownish; cell reaching back a little farther than cell Rg; cell Mg longer than pedicel; median cell (1st M 2 ) present though the crossvein may be very faint. Hind wings with tips colored like the fore wings, anal area pale; stigma lighter in color than the wings; posterior margin incised. Abdo- men light brown and paler on sides and beneath. Genitalia pale; dorsal piece greatly reduced in size, bifid at tip and curved down- ward like a hook when viewed from side; penis and its sheath greatly modified. Length of wings of male: fore wings 12.5 mm., hind wing 11 mm. Type No. 4625, Calif. Acad. Sci., Ent. Type locality Cor- vallis, Oregon. Another male specimen was collected at Beaver Creek, Medicine Lake, Canada, September 4. Glossosoma oregonense Ling, n. sp. General appearance similar to G. alascense. Head blackish brown; vertex dark, warts with white hairs. Antennae shorter than wing, brownish in color, basal segment thick and dark brown; face brownish with whitish scale hairs; maxillary palpi brownish, labial palpi very small. Thorax dark brown; legs uniformly yellowish; spurs long and slender, dark brown in color. Wings light brownish, thickly covered with brownish and silvery short hairs; venation like other species. Abdomen blackish above, grayish on sides and below. Length of wings of male: fore wings 7.5 mm., hind wings 6.5 mm. Type No. 4626, Calif. Acad. Sci., Ent. Type locality Crater Lake, Oregon (Van Dyke), July 18, 1922. Others are from Steen Mts., Oregon, June 25, 1922 (E. C. Van Dyke) ; Corvallis, Ore- gon, June 11, 1925 (E. P. Van Duzee). APRIL, 1938] LING— CADDIS FLIES 63 Philopotamus novusamericanus Ling, n. sp. General appearance similar to P. americanus. Head black; warts slightly lighter, hairs golden. Antennee brownish, slightly darker at base of each joint. Palpi dark brown, second segment thick, third segment one and a half times as long as the fourth, fifth almost as long as third and fourth combined. Legs brownish, spurs with a black line on edge. Wings brownish, with many irregular yellowish spots; venation as usual; cell Rg of hind wing absent. Abdomen grayish. Genitalia brownish; dorsal piece small; superior appendage longer than wide when fully extended; clasper long, basal segment very thick, second small, tapering at end and only half as long as the first. Length of wings of male : fore wing 10 mm., hind wing 8.5 mm. Type No. 4627, Calif. Acad. Sci., Ent. Type locality Lagu- nitas, Marin Co., California, March 23, 1927 (H. H. Keifer). Philopotamus oregonensis Ling, n. sp. A small species, beautifully colored with yellow. Head black, vertex with prominent brownish warts; hairs white, slightly golden. Antennae stout, brownish, slightly annulated with black. Eyes black with golden markings. Palpi brownish. Thorax brown; legs paler and grayish toward tip; spurs stout and longer. Fore wing broad, brownish, with numerous yellowish and whitish irregular spots, especially on the costal margin; pubes- cence dense but short. Veins brown, venation like that of P. sequalis. Hind wing broad, cell Rg present. Genitalia: dorsal piece represented by two slender projections; superior appendage long, broad at middle and pointed at both ends; clasper with the basal and distal segments subequal in length, distal joint rounded at tip. Wings of male: fore wing 8 mm., hind wing 7 mm. Type No. 4628, Calif. Acad. Sci., Ent. Type locality Alsea Mount, Oregon, June 2, 1929 (H. A. Scullen) . Dolophilus arizonensis Ling, n. sp. Head brownish, more or less flattened. Eyes normal, ocelli small. Antennae stout, brownish, slightly annulated with yellow at tip of each segment. Palpi brownish, first and second segments subequal in size, third segment twice as long as fourth, fifth slightly longer than third. Legs pale, spurs 2-4-4. Wings pale brown; venation as usual. Abdomen brownish. Genitalia pale yellowish; dorsal piece broad at base, narrow at middle, and club- shaped at tip; superior appendage small, almost triangular in shape, clasper short but stout, yellowish in color, with black mark- ings at end of each segment; basal segment thick, slightly longer 64 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 than broad, distal joints shorter than the first, tapering gradually toward tip. Length of wings of male: fore wing 8.5 mm., hind wing 5.5 mm. Type No. 4629, Calif. Acad. Sci., Ent. Type locality Arizona. Dolophilus cruzensis Ling, n. sp. Similar to D. arizonensis in general form and coloration of head, antennae, palpi and wings, but it can easily be distinguished by the characters of genitalia. Genitalia dull brown in color; dorsal piece broad at base and spear-shaped at tip; superior appendage slender, almost as long as the dorsal piece; claspers short. When fully extended the basal segment is only slightly shorter than the second. (In dried specimens the basal segment seems to be much shorter.) The second segment twice as long as broad and only slightly narrower toward tip. Length of wings of male: fore wing 6 mm., hind wing 5^ mm. Type No. 4630, Calif. Acad. Sci., Ent. Type locality Felton, St. Cruz County, California, May 15-19, 1907 (J. C. Bradley), many specimens. Chimarrha idahoensis Ling, n. sp. General appearance like that of C. aterrima. Palpi long; fifth segment slightly longer than fourth, third almost as long as second which is about as long as fourth and fifth together, basal segment very short. Wings brownish, venation as usual. The ventral process on the last abdominal segment with only the rudiment left (hardly visible) . Clasper short and broad, only slightly incised on its posterior margin. Length of wings of male: fore wing 6 mm., hind wing 5.5 mm. Type No. 4631, Calif. Acad. Sci., Ent. Type locality Lewis- ton, Idaho, July 21, 1925 (C. L. Fox), one male. Arctopsyche brevipennis Ling, n. sp. General appearance similar to A. grandis. Head brownish; vertex with yellowish hairs; face brownish, almost bare. Eyes large, black, and with fine yellowish pubescence. Antennae slender, brownish, annulated with black 'at end of each segment. Pro- thorax with yellowish gray hairs; meso- and metathorax dark brown with golden hairs at the middle (the depressed area). Fore wings of male pale yellowish, with irregular black spots. Venation same as A. grandis. Legs yellowish brown. Abdomen dark above and brown on sides. Genitalia much simpler than in APRIL, 1938] LING— CADDIS FLIES 65 the other species ; dorsal piece narrow and long and slightly incised at tip; claspers long and slender, pointed at end. Length of wings of male: fore wing 15.5 mm., hind wing 14 mm. Type No. 4632, Calif. Acad. Sci., Ent. Type locality Bubbs Creek, Kings River Canyon, California, July 8, 1912, altitude 9,700 ft. (E. C. Van Dyke) ; also from Rea Lake, Fresno Co., California, July 20, 1910, altitude 10,500 ft. (E. C. Van Dyke). Arctopsyche calif ornica Ling, n. sp. General appearance similar to A. grandis. Head brownish; vertex covered with long dense golden hairs; face brown with dark hairs. Antennee brownish, annulate with black and yellow at tips of joints. Palpi long, brownish at base, paler toward tip; fourth segment longer than third, fifth almost as long as the other four together. Prothorax with long black hairs at the dorsal warts; meso- and metathorax dark brown, paler at median line. Legs yellowish brown, darker toward tip; spurs long, inner apical spur of front leg longer than the outer; outer apical and subapical spurs of middle leg longer than the inner. Abdomen fuscous. Genitalia brownish; very complicated. Fore wings broad, brownish with numerous black and yellowish irregular spots, a conspicuous black band running along the anastomosis; venation similar to that of A. grandis. Length of wings of male: fore wing 12.5 mm., hind wing 12 mm. Type No. 4633, Calif. Acad. Sci., Ent. Type locality McCloud River, Shasta Co., California, July 1, 1907 (F. X. Williams) . Arctopsyche oregonensis Ling, n. sp. Form much smaller than the other species. Head black, ver- tex black with five small warts in front bearing yellowish hairs, and one pair of much larger ones at the hind margin, bearing black hairs with yellowish tips. Palpi brownish. Prothorax brownish. Meso- and metathorax black. Fore wings slender and transparent, with many yellowish and black spots irregularly scattered. Hind wings broad, hyaline, and not so transparent as the fore wing. Genitalia with the dorsal piece bifid, serrated above when viewed from the side; claspers short with a finger- like projection at the lower margin. Length of wings of male : fore wing 11 mm., hind wing 10 mm. Type No. 4634, Calif. Acad .Sci., Ent. Type locality Wal- lowa Lake, Oregon, July 27, 1929 (H. A. Scullen). 66 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 Diplectrona oaklandensis Ling, n. sp. General appearance similar to D. calif ornica Banks but much paler in color. Genitalia brownish; dorsal piece longer and more deeply notched at tip than in D. calif ornica] claspers slender, second segment very small, almost rounded; penis spoon-shaped, bifid, widened and with a small spine-like process at tip; the accessory appendages two in number, black and simple. Length of wing: fore wing 7.5 mm., hind wing 6.5 mm. Type No. 4635, Calif. Acad. Sci., Ent. Type locality Oak- land, California, April 17, 1915 (E. P. Van Duzee), one male. Hydropsychodes arizonensis Ling, n. sp. Head dark brown; vertex and face dark with black and white hair. Antennae brownish, annulate with yellow, darker toward tip, somewhat serrate in appearance. Palpi dark. Thorax brownish; legs pale; spurs 2-4-4. Wings pale, with very short and fine white and black hairs; venation as usual. Genitalia pale; tip of dorsal piece with a finger-like projection on either side, directed inward, pointing toward each other; basal segment of clasper stout, second very small, almost triangular in shape; penis almost like that of H. gracilis except that the lobes are not so broad. Length of wings: fore wing 7 mm., hind wing 6 mm. Type No. 4636, Calif. Acad. Sci., Ent. Type locality Chiri- cahua Mts., Arizona, August 25, 1927 ( J. A. Kusche) . Astenophylax needhami Ling, n. sp. Head brownish; vertex black at the center (almost like a black spot), two pairs of warts, the smaller pair present between the ocelli and base of antennae, the larger pair lying transversely along the hind margin of vertex, hairs long and brownish; front light brownish with hairs of the same color. Antennae shorter than wing, basal segment pale, dark at middle and paler again toward tip. Palpi light brownish. Prothorax light brown, warts pale. Mesothorax dark brown above, with oval whitish area at scutellum. Legs light brown, ventral surface of tibiae and tarsi armed with two rows of stout spines, last tarsal joint of the hind leg with two pairs of spines; spurs 1-3-4. Fore wings broad, light brown, scantily pubescent, stigma not well defined, veins brown. Hind wings paler, veins pale, a cross-vein present betvTeen veins Sc. and near margin. Genitalia dark, dorsal piece with the edges turned upward forming a big depression between them; clasper broad at base, small and almost pointed at tip; penis simple with a pair of thread-like appendages. Length of fore wing: 25 mm. APRIL, 1938] LING— CADDIS FLIES 67 Type No. 4637, Calif. Acad. Sci., Ent. Type locality “Sutley”, California (Mrs. S. T. Yearns, presented by P. R. Needham) . This species is named in honor of Dr. P. R. Needham. Colpotaulius tehamia Ling, n. sp. General appearance similar to Anaholina spinosa but they can easily be separated by the fact that the tibiae of the front legs of this species have very few spines and the first tarsal segment is only half as long as the second. The dorsal piece of the male genitalia is larger than that of A. spinosa. Length of fore wing: 11 mm. Type No. 4638, Calif. Acad. Sci., Ent. Type locality Tehama Co., California, Oct. 30, 1920 (E. C. Van Dyke). Anabolia oslari Ling, n. sp. Head dark brown, almost triangular in shape when viewed from side; vertex with very few long hairs. Antennae brownish, basal segment about as long as the next three segments together. Thorax and abdomen brownish. Legs brownish, stout, with a black spot on the inner surface of trochanter of each leg. Last tarsal segment of the hind leg with one pair of black spines. Genitalia dark brown; dorsal piece well chitinized and black in color at tip; clasper smaller than superior appendages; penis simple; accessory appendages simple. Length of fore wing: 12 mm. Type No. 4639, Calif. Acad. Sci., Ent. Type locality Glen- wood Springs, Colorado (Oslar). Hesperophylax minutus Ling, n. sp. This is a very small species. Head hairy; vertex dark brown covered with short white hairs, with only one pair of warts (posterior) ; antennae dark brown, about as long as wing; basal segment with a longitudinal yellowish stripe (without any strong hairs in the stripe) on the ventral surface; face deep brown, a pair of transverse white stripes present below the base of antennae. Prothorax densely covered with long pale yellowish hairs, mostly directed backward, meso- and metathorax black above and brownish at sides and below. Legs stout, brownish. Wings resemble those of H. designatus. Genitalia dark, almost identical with those of H. designatus. Length of wings of male: fore wing 9 mm., hind wing 8.5 mm. 68 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO, 2 Type No. 4640, Calif, Acad. Sci,, Ent. Type locality Steen Mts., Harney Co., Oregon, June 25, 1922 (E. C. Van Dyke). Chilostigina atlinensis Ling, n. sp. Head black; vertex with only the usual dorsal posterior warts; antennae shorter than wings; basal segment dark, the others reddish brown with lighter area at tip of each joint. Face and palpi dark brown. Prothorax black at sides, dorsal warts dis- tinct, reddish and bearing numerous whitish hairs. Mesothorax light brownish above (excepting the anterior median portion) and dark at sides. Metathorax dark brown. Legs slender and long; coxae black; femora, tibiae, and tarsi pale. Spurs 1-2-2. Last tarsal segment without any spine. Fore wing smoky, stigma distinct, veins pale, brownish marking faint. Length of fore wing: 16 mm. Type No. 4641, Calif. Acad. Sci., Ent. Type locality Atlin, British Columbia, September 5, 1929 (George Swarth). Clistoronia bifida Ling, n. sp. General appearance very similar to C. vastus. Head brownish; vertex with a tuft of white hairs between the bases of antennae; face and palpi brownish, clothed with light brown hairs. Dorsal warts of prothorax densely clothed with strong, whitish, and black setae. Meso- and metathorax brown. Wings very similar to those of C. vastus', venation as usual. Legs light broWn; inner surface of front femora ciliated; tibiae with dark marking at middle and tip; tarsi darkened at tip of each segment; last tarsal segment of hind leg with one pair of black spines. Spurs 1-3-4. Genitalia very characteristic, dorsal piece distinctly bifid at tip. Length of fore wing: 19 mm. Type No. 4642, Calif. Acad. Sci., Ent. Type locality Cor- vallis, Oregon (C. A. Starder). Neophylax pulchellus Ling, n. sp. Head deep brown; vertex with tuft of black and white hairs between the bases of antennae; face and palpi brown. Thorax brown. Legs brownish; spurs: male, 1-3-3, female, 1-4-4; inner apical spur of the hind legs of the male greatly modified, some- what leaf -like. Fore wings brownish, beautifully marked with deep brown and yellowish spots, clothed with yellowish and whitish hairs, especially toward apex; stigma very distinct, densely pubescent; veins deep brown; vein strongly arched near tip; discal cell four times as long as its pedicel; post-apical margin strongly incised. Hind wing paler; venation somewhat reduced in the male. Genitalia hard to make out. APRIL, 1938] LING— CADDIS FLIES 69 Length of wings: male, fore wings 13 mm., hind wings 11 mm.; female, fore wing 17 mm., hind wing 15 mm. Type No. 4643, Calif. Acad. Sci., Ent. Type locality Oak- land, California, April 12, 1908 (E. C. Van Dyke). Oligoplectrum arizonicum Ling, n. sp. Head dark brownish. Antennae about as long as wing, basal segment about as long as the head. Maxillary palpi 3-segmented; basal segment about twice as long as broad, second segment twice as long as the first and subequal in length with the third seg- ment. Thorax dark brown; legs brownish, spurs 2-2-2. Wings brownish; fore wing densely covered with hairs. Length of wings: fore wing 5 mm., hind wing 3.5 mm. Type No. 4644, Calif. Acad. Sci., Ent. Type locality Ari- zona, August 18. Oligoplectrum calif ornicum Ling, n. sp. Head brownish, vertex with two pairs of warts lying trans- versely between the eyes, front pair just behind the base of antennae. Antennae short, stout, brownish in color; basal seg- ment slightly shorter than head. Maxillary palpi 3-segmented; first segment very short, second three times as long as the third which is about twice as long as broad. Thorax brownish; legs paler; spurs 2-2-2. Wings brownish, densely covered with hairs. Length of wings : fore wing 9 mm., hind wing 6.5 mm. Type No. 4645, Calif. Acad. Sci., Ent. Type locality Yosem- ite Valley, California, July 5, 1927 (E. C. Van Dyke). Hibernation of the Cerambycid Plectrura spiNicAUDA Mann. In a previous number (Pan-Pac. Ent., 12:119) Mr. E. G. Linsley recorded that Ipochus fasciatus Lee. hibernates in the adult stage in Southern California. It may be of interest to note that the writer has found adults of another flightless Ceram- bycid, Plectrura spinicauda Mann., hibernating on the campus of British Columbia at Vancouver. The beetles were fairly com- mon throughout the winter (November to March) in crevices of the rough bark of living Thuja plicata, and also under the loosened bark of dead or injured Alnus rubra . — Hugh B. Leech, Univ. of Calif., Berkeley. 70 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 MEXICAN TINGITID^ (HEMIPTERA) BY CARL J. DRAKE Iowa State College, Ames, Iowa Through the kindness of Mr. R. L, Usinger, the writer has received a small collection of Mexican Tingitidae for study. This collection of thirty-three specimens contains eight species, three of which are described below as new. The types of the new species are in the type collection of the California Academy of Sciences. The specimens were all collected by H. E, Hinton and R. L. Usinger either in the Federal District (Mexico City) or at vari- ous localities in the District of Temascaltepec, all in the State of Mexico. Teleonemia nigrina Champion Real de Arriba, Temascaltepec, 1 specimen, July 14, 1933. Dichocysta pictipes Champion Tejupilco, Temascaltepec, 4 specimens, June 13, 22, and 29, 1933. CoRYTHUCHA MORRILL! Osborn and Drake Tejupilco, Temascaltepec, 1 specimen, June 17, 1933; and Mexico City, 1 specimen, July 18, 1933. CORYTHUCHA DECEPTA Drake Mexico City, July 19, 1933, 2 specimens; Real de Arriba, Temascaltepec, 12 specimens, July 13 and 14, 1933, 6000 to 9000 feet, on Alnus acuminata', village of Temascaltepec, July 11, 1933; and Bejucos, Temascaltepec, July 4, 1933. Atheas nigricornis Champion Tejupilco, Temascaltepec, 1 specimen, June 27, 1933; and Real de Arriba, Temascaltepec, 4 specimens, on Pine, June 10, 1933. Atheas mirabilis Drake, sp. nov. Head black, the antenniferous processes black, stout, pointed, directed slightly antero-laterally. Antennge black, moderately stout; segment I one and one-half times as long as II; III two and one-half times as long as IV. Pronotum strongly convex. APRIL, 1938] DRAKE— TINGITID^ 71 coarsely pitted, black, the paranota, carinae, collar and triangular process testaceous; carinae sharply raised, indistinctly areolate, the lateral carinae slightly bowed inward in front; collar slightly raised, reticulate, truncate in front; paranota moderately broad, biseriate in front, uniseriate opposite humeri, the areolae circular in form; posterior process areolate, costal area testaceous, rather broad, mostly biseriate, triseriate in widest part; subcostal area infuscate, biseriate; discoidal infuscate, very broad, long, extend- ing considerably beyond middle of elytra, seven areolae deep in widest part, the outer margin curved; sutural area infuscate, the apical fourth testaceous. Body beneath black. Legs yellowish brown, the tarsi dark. Length, 2.82 mm.; width, 1.20 mm. Holotype (male), No. 4566, C.A.S. Ent. and allotype (female) Temascaltepec, Mexico, July 11, 1933. Resembling very closely A, nigricornis Champion but readily separated from it by its larger size, shorter and slightly stouter antennae, differently colored elytra, wider costal and larger discoidal areas. Leptopharsa hintoni Drake, sp. nov. Small, elongate. Pronotum convex, black, pitted, the posterior process reticulate, testaceous; carinae testaceous, foliaceous, uni- seriate, the areolae moderately large, the lateral carinae constricted beyond the disc; paranota rather narrow, reflexed, biseriate, the outer margin nearly straight, the areolae rather large and hyaline, the nervures yellowish brown. Hood moderately large, inflated, slightly produced forward in front, testaceous, some of the veinlets brown. Elytra constricted beyond middle, testaceous, the nervelets con- siderably embrowned; costal area uniseriate (type), biseriate in widest part (allotype), the areolae rather large; subcostal area triseriate in widest part; discoidal area not reaching middle of elytra, bounded by a raised nervure, with a dark fuscous spot near apex (black on outer boundary) , widest beyond middle, there four areolae deep; sutural area becoming more widely reticulate distally, the nervelets considerably embrowned, some of the areolae clouded with fuscous. Head black, with five very long, stout, sharp, brownish spines, the front pair shorter; antennae very long, testa- ceous; segment I brown, much stouter and two times as long as II; III very long, four times as long as IV, the latter mostly black. Rostral channel wide; laminae foliaceous, testaceous; rostrum brown, dark at tip, extending beyond middle of meso- sternum. Body beneath black. Length, 2.80 mm.; width, .72 mm. 72 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 Holotype (male) No. 4567, C.A.S., Ent., and allotype (female), Tejupilco, Temascaltepec, June 24, 1933. Allied to L. partita (Champ.) but readily separated from it by shorter first antennal segment, longer spines on head and narrower costal area. Leptopharsa usingeri Drake, sp. nov. Hood rather large, inflated, globose behind, slightly produced in front, testaceous, the veinlets considerably embrowned. Pro- notum convex, black, the carinae foliaceous, testaceous, each com- posed of one row of rather large areolae. Paranota testaceous, broad, reflexed, mostly triseriate, the areolae rather large. Tri- angular projection testaceous, reticulate. Head black; median and hind spines long, slender, testaceous, porrect; front spines con- colorous, much shorter. Antennae long, slender, testaceous; seg- ment I brown, very much stouter and nearly three times as long as II, the latter slender; III very long, four and one-half times as long as IV, the latter mostly black. Rostral laminae strongly foliaceous, testaceous, widely separated; rostrum barely reaching meso-metasternal suture. Bucculae broad, testaceous, closed in front. Elytra rather broad, faintly constricted beyond middle, testa- ceous, parts of some veinlets embrowned; costal area broad, mostly triseriate, quadriseriate in widest part, the areolae large; subcostal area mostly triseriate; discoidal area not reaching middle of elytra, widest beyond middle, subcostal boundary more strongly raised than discoidal, four areolae deep in widest part; sutural area widely reticulate. Legs slender testaceous. Length, 3.80 mm.; width, 1.62 mm. Holotype (female) No. 4568, C.A.S., Ent., and two para- types (females), the holotype and one paratype, Temascaltepec, July 11, 1933, the other paratype, Tejupilco, Temascaltepec, June 23, 1933. This species differs from L. prcestantis (Drake) in having much smaller hood, longer paranota, much longer carinae, and much less foliaceous median carina. Our Advertisers Our readers will notice an increase in the cover space devoted to advertisements. The Pan-Pacific Entomologist has been able to maintain its usual style and size during “hard times” because of the generous cooperation of all persons concerned in its pub- lication. Our advertisers now join with us and deserve our best thanks and support. APRIL, 1938] DRAKE AND HARRIS— GERRID^ 73 CONCERNING MEXICAN GERRID^ (HEMIPTERA) BY C. J. DRAKE AND H. M. HARRIS This paper contains the description of two new species of the genus Gerris Fahr. and notes on two other species of Gerrids and five species of Halohatinids. All specimens, save those of G. firma, n. sp., were collected hy R. L. Usinger and the types are deposited in the California Academy of Sciences. Gerris ampla D. & H., n. sp. Very large, robust, brownish black, densely clothed with very short golden pile. Antennae brown, the apical portion of II, all of III and IV brownish black; segment I distinctly longer than II and III conjoined, the apical three subequal in length. Pro- notum impressed along the median line in front; there with a short, flavous, longitudinal stripe; the posterior lobe with a rather distinct median carina. Male: Last abdominal segment above concavely emarginate, the connexiva terminating in very short stout spines. Apical seg- ment of venter not quite as long as two preceding, distinctly im- pressed in front; hind margin strongly raised, doubly emarginate; first emargination broad, the second wide and very deep with edge clothed with fine pale hairs. First genital segment with a promi- nent longitudinal keel. Female: Similar in color to male. Terminal connexival spine shorter and much stouter than in remigis. Length, 17.00 mm.; width, 4.00 mm. Holotype, apterous male. No. 4569, C.A.S. Ent. ; allotype, apterous female. No. 4570, C.A.S. Ent.; and nineteen paratypes, apterous and winged, Real de Arriba, Temascaltepec, Mexico, May 25 and June 7, 1935. In the winged form the pronotum is more tumid than in the apterous and the veins of hemelytra are very prominent. The short connexival spines and the very differently formed terminal ventral segment of male, together with the large size and long first antennal segment, separate the species at once from its nearest ally, G. remigis Say. Gerris firma D. & H., n. sp. Short, moderately robust. Segment I of antennae slightly shorter than II and III conjoined; III equal to II; IV one-third longer than II. Pronotum long, covering metanotum, black, clothed with very short golden hairs, without longitudinal stripes 74 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 on the sides in front, the anterior lobe with a median yellowish brown stripe. Sides of thorax with a silvery sheen. Connexiva margined with yellowish brown, not produced behind. Male: Anterior femora short, stout, unarmed, not curved. Venter fuscous black, with a median yellowish stripe; last seg- ment nearly as long as the preceding two, impressed behind and broadly margined with yellow, the second notch deep and very wide. First genital beneath deeply transversely impressed on the sides, with,' a short median ridge, roundly produced behind at the middle; above long, black, margined with broAvn. Omphalium not prominent. Length, 5.30 mm.; width, 1.50 mm. Female : Connexiva very broad, margined with brown, the apex with a few long hairs, truncate, not produced. Length, 7.00 mm.; width, 2.00 mm. Holotype, male; allotype, female; and paratypes, male and female; all apterous, Mexico City, Mexico, April, 1910, collec- tion of authors. This species in some respects seems intermediate between the genera Gerris Fahr. and Limnogonus Stal. In the front legs the first tarsal segment is noticeably shorter than the second, but the body is only feebly shiny and the body clothing and genital characters are typically Gerris in nature. Gerris flavolineatus Champion 1898. Gerris flavolineatus Champion, Biol. Centr.-Amer., Ehynch. 11:149, PI. IX, Figs. 13-15. 1934. Gerris flavolineatus Drake and Harris, Ann. Carnegie Mus., XXIII: 197, PI. XXIV, Pig. c. Tejupilco, Temascaltepec, Mexico, June 18 and 24, 1933; Real de Arriba, Temascaltepec, June 7, 1933; North of Cartago, Costa Rica, July 11, 1932, B. S. Kaiser. Tenagogonus quadrilineatus (Champ.) 1898. Limnometra quadrilineata Champion, Biol. Centr.-Amer., Ehynch. 11:151, PI. IX, Fig. 17. 1934. Tenagogonus quadrilineatus Drake and Harris, Ann. Car- negie Mus., XXIII: 216, PI. XXIV, Fig. g. Tejupilco, Temascaltepec, June 16, 1933. POTAMOBATES THOMASI Hungerford 1937. Potamobates thomasi Hungerford, JL Kans. Ent. Soc., X :63. APRIL, 1938] DRAKE AND HARRIS— GERRID^ 75 1937. Potamobates thomasi Hungerford, Bull. Brooklyn Ent. Soc., XXXII: 146, PI. II. Three examples, Tejupilco, Temascaltepec, June 16, 1933. Metrobates porcus Anderson 1932. Metrobates porcus Anderson, Jl. Kan. Ent. Soc., V:59. 1932. Metrobates spissus Drake and Harris, Ann. Carnegie Mus., XXI :88, PI. II, Figs. 1, 2d, 4d. 1932. Metrobates porcus Anderson, U. of Kan., Sci. Bull., XX: 308, PI. XXV, Fig. 3. Several specimens, some alate, Bejucos, Temascaltepec, July 3, 1933. These individuals vary from the types of M. spissus in that the mesonotum is more obliquely narrowed anteriorly and less abruptly rounded at the front angles. In spissus the sides of the mesonotum are practically parallel for their entire length. Metrobates denticornis (Champion) 1898. Trepobatopsis denticornis Champion, Biol. Centr.-Amer., Rynch., 11:158, PI. IX, Fig. 26. 1932. Metrobates denticornis Drake and Harris, Ann. Carnegie Mus., XXI: 87, PI. II, Figs. 2b, 3, 4b. Several apterous and macropterous males and females, Bejucos, Temascaltepec, July 3, 1933. Trepobates trepidus D. & H. 1928. Trepobates trepidus Drake and Harris, Proc. Biol. Soc. Wash., 41:27. 1932. Trepobates trepidus Drake and Harris, Bull. Brooklyn Ent. Soc., XXVII: 117, PI. XII, Fig's. 8 & 9. A long series of winged males and females, Tejupilco, Temas- caltepec, June 15 to 18, 1933. Trepobates becki D. & H. 1932. Trepobates becki Drake and Harris, Bull. Brooklyn Ent. Soc., XXVII: 120, PI. XII, Figs. 3 & 7. One apterous male. Real de Arriba, Temascaltepec, July 7, 1933; several females and one male., Tejupilco, Temascaltepec, June 16, 1933. The legs seem to be constantly shorter in this species than in T. trepidus D. & H. 76 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 REPORT UPON SOME WATER BUGS FROM MEXICO COLLECTED BY MR. MELDON EMBURY BY H. B. HUNGERFORD A small collection of Aquatic and Semiaquatic Hemiptera was made for me during the summer of 1937 by Mr. Meldon Embury. Since the material contains some new species and some interesting distributional records, I record them here. CORIXID^ Arctocorixa beameri Hungerford. 10 ^ ^ and 17 9 $ . “Mexico, June 5, 1937. Juan Manual, near El Salto, 9300 feet above sea level. Pine forest region.” This species was described from five specimens taken in Cochise Co., Arizona, in 1927, and the above Mexican series is the first encountered since the species was described. Neocorixa snowi Hungerford. 9 $ $ and 49 9 “Mexico, June 10, 1937. San Antonio, near El Salto, 5000 feet above sea level, semitropical.” 1 $ from “Juan Manual near El Salto, 9300 ft. above sea level. Pine forest region.” Graptocorixa bimaculata (Guer.) 13^^ and 18 9 9 “Mexico, August 20, 1937. Oaxaca, 5000 feet above sea level. Semidesert, irrigated land, semitropical.” Graptocorixa emburyi Hungerford, n. sp. Length 6.3 mm.; width across eyes 1.95 mm. (male), 2.04 mm. (female). General color dark with pattern typical for the genus. Pale lines on base of clavus more or less reddish and broader than the dark ones, elsewhere on the hemelytra the dark bands are as broad or a little broader than the pale ones and undulate. Pro- notum crossed by nine or ten dark bands, no wider than the pale interspaces; the anterior four entire, others may be somewhat split. Basal half of embolium reddish; a sooty blotch on suture of embolium, behind which the margin is checkered. Venter brown to black. Head and eyes yellowish, only the base of the middle tibia and distal end of middle tarsus embrowned. APRIL, 1938] HUNGERFORD— WATER BUGS 77 The so-called beak reduced. Frontal depression of male shallow ami somewhat pilose; female with the same facial area pilose. Lower margin of basal half of front femur in both sexes provided with about four, long stout bristles. Inner base of male femur with small stridular patch. Front tarsus long, slender, tapering to a single stout claw in both sexes. The male pala provided with about 36 pegs arranged as shown in the drawing. Strigil of male of moderate size, flat, and composed of six longitudinal striae. Genital capsule of male as shown at Figure 7. Holotype male. Allotype and eight paratypes, all females, labeled “Mexico, June 10, 1937, Meldon Embury, San Antonio, near El Salto, 5000 ft. above sea level, semitropical,” are in the Francis Huntington Snow Entomological Museum, University of Kansas. This species is a trifle smaller than Graptocorixa serrulata (Uhler) . It differs from Uhler’s species in the more slender pala, reduced beak, sharper metaxpyhus, shape of strigil, and in lacking the curious projections on the dorsum of the male abdo- men characteristic of G. serrulata Uhler, as well as the differ- ences in the shape of the male claspers. The palae of Uhler’s species are usually strongly marked with black while none of the specimens of this new species is so marked. Notonectid^ Notonecta impressa Fieber. 1 $ “Mexico, August 6, 1937, Pachuca, State of Hidalgo, 8000 ft.” Notonecta mexicana A. & S. 1 ^ and 3 2 2 “Mexico, August 20, 1937, Oaxaca, 5000 ft. semidesert irri- gated land, semitropical.” Notonecta penelobata Hungerford, n. sp. Male holotype 14 mm. long; width of pronotum 5 mm. The female allotype measures 13 mm. long. Appears to be slightly more slender than N. lohata Hungerford. Male nearly black, female with the hemelytra tan with darker maculations. Legs with the black longitudinal stripe characteris- tic of the subgenus Erythronecta. It is probable that the color 78 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 range of the species is from greenish tan through red to black, as in other species of the group. Head moderately large, anterior outline as viewed from above flattened; vertex slightly produced beyond anterior line of the eyes; vertex slightly longer than its anterior width in male, an- terior margin of vertex less convex and plainly shorter than the frontal margin of the eye; anterior breadth of vertex : synthlepsis :: 20:6. Pronotum about one and one-half times the length of the head, lateral margins divergent, straight in male and nearly so in female; anterior angles normal; lateral ledge as seen from the side sinuate, oblique and shorter than the rear margin of the eye below it; anterior half moderately explanate. Anterior lobe of membrane larger than the posterior. Anterior trochanter of male with short hook. Mesotrochanter rounded. Keel of fourth abdominal sternite bare. Last abdominal sternite of female slender, the lateral margins reflexed and constricted beyond the middle, the tip deeply incised. Last abdominal sternite of male unusually broad; male genital capsule with a large, pyramidal projection in front of clasper. Type in the Francis Huntington Snow Entomological Museum of the University of Kansas. Described from the holotype and one female allotype, labeled “Mexico, June 10, 1937, Meldon Embury, San Antonio, near El Salto, 5000 ft. above sea level, semitropical.” This species belongs to the subgenus Erythronecta. In my key, pages 65-66 olThe Genus Notonecta of the World, it would run to Notonecta lobata Hungerford. The male is readily dis- tinguished from N. lobata Hungerford by the shape of the genital capsule and the female by the shape of the last two abdominal sternites. See figures 3 and 5. Notonecta penecompacta Hungerford, n. sp. Females 13 mm. to 13.5 mm. long; width of pronotum 4.5 mm. to 4.95 mm. A little more slender than N. compacta Hunger- ford. The females vary from tan and black to red and black and have the black longitudinal stripe on the legs characteristic of the subgenus Erythronecta to which this species belongs. Head moderately large, anterior outline, as viewed from above, flattened; vertex slightly shorter than its width in these females; anterior breadth of vertexisynthlipsis: :20:7. Pronotum shaped very much as in N. cormpacta Hungerford, somewhat less strongly constricted, the anterior marginal lobe a little longer. Meso- APRIL, 1938] HUNGERFORD— WATER BUGS 79 trochanters not angulate. Penultimate abdominal sternite slender, inconspicuously notched at tip; last abdominal sternite as shown in drawing (fig. 4). Holotype female and two paratype females in Francis Hunt- ington Snow Entomological Collection at University of Kansas. These are labeled “Mexico, June 10, 1937, Meldon Embury, San Antonio, near El Salto, 5000 ft. above sea level. Semitropical.” These three females bear same label as the male and female of Notonecta penelohata Hungerford, but represent an unde- scribed species that is closely related to N. compacta Hunger- ford, from which it differs both in the shape of the pronotum and in the last abdominal stemites. N. compacta has a shorter and broader last abdominal sternite as can be seen by compar- ing the drawing on page 74 of “Notonecta of the World” with the illustrations furnished herewith. The shape of the pronotum is intermediate between N. compacta Hungerford and N. mexi- cana A. & S. while the last two abdominal sternites are distinctive. While two species of females bear the same label as the male of N. penelohata Hungerford, I have no doubt that the female with the nearly straight lateral pronotal margins belongs to N. penelohata Hungerford since that species is obviously related to N. lohata Hungerford. In the subgenus Erythronecta the females are as specifically distinct as the males. Notonecta repanda Hungerford. 6 specimens. “Mexico, May 30, 1937, Durango City, 5000 ft. desert. Irri- gated land.” Notonecta melaena Kirkaldy. 1 2 “Mexico, August 20, 1937, Oaxaca, State of Oaxaca, 5000 ft., semidesert, irrigated land. Semitropical.” Notonecta indicoidea Hungerford. 3^,5$ “Mexico, May 30, 1937, Durango, State of Durango, 5000 ft. desert, irrigated lands.” Notonecta distinctoidea Hungerford. Six specimens “Mexico, June 5, 1937, Juan Manual, near El Salto, 9300 ft. above sea level.” These run to this species. 80 THE PAN-PACIITC ENTOMOLOGIST [yOL. XIV. NO. 2 APRIL, 1938] HUNGERFORD— WATER BUGS 81 1. N. compacta Hungerford. Head and pronotum of female; 2. N. penecompacta n. sp. Head and pronotum of female; 3. N. penelobata n. sp. Male genital capsule; 4. N. penecompacta n. sp. Abdominal venter of female; 5. N. penelobata n. sp. Abdominal venter of female; 6. G. emburyi n. sp. Dorsum of abdomen of male; 7. G. emburyi n. sp. Male genital capsule; 8. G. emburyi n. sp. Face of female, 9. G. emburyi n. sp. Inside view of male pala; 10. G. serrulata (Uhler). Face of female. A NEW HYDROMETRA FROM NEW CALEDONIA AND AUSTRALIA^ BY H. B. HUNGERFORD Hydrometra risbeci Hungerford, n. sp. Length, 8.5 mm. to 11.1 mm.; females longer than the males. General color varying from yellowish brown to brown. Pronotum bearing a median longitudinal silvery stripe that may be continued forward on the post-ocular part of head; a curved silvery band above the anterior acetabula, and a submarginal longitudinal brown band on metathorax and abdomen. Venter of head, thorax and abdomen frosted. In winged forms the hemelytra are brown with a median longitudinal silvery stripe. In wingless forms the abdominal tergites are shiny reddish brown in males and at least medianly so in females, except the last tergite which is pubescent laterally in males and entirely pubescent in females. Head: Length 80 units (holotype), 86 units (allotype). The ratio of the anteocular part of the head to the post-ocular part is given by the formula, AO:PO::49:25 (holotype), 54:25 (allo- type). Dorsal interocular groove short, less than the diameter of an eye; ventral interocular groove not longer than the eye; clypeus connate ; rostrum long almost reaching the anterior margin of pronotum; beginning with the basal the lengths of the seg- ments of the antennae are in the following ratio: 15:30:60:32 (holotype), 15:30:60:37 (allotype). Pronotum: Length 45 units (holotype), 50 units (allotype). An encircling row of pits parallel to the anterior margin and about two units from it; posterior lobe with a median row of pits, a few pits near posterior end and about four antemarginal pits behind acetabula of first pair of legs. Wings: Hemelytra of holotype fully developed, exposing the end of last abdominal tergite. Hemelytra of allotype minute. Coxae: The distance between the first and second coxae is to that between the second and third coxae as 30:42 (holotype); ^ Contribution from Department of Entomology, University of Kansas, Lawrence, Kansas. 82 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 anterior and middle acetabula with two pits anterior to the cleft and two pits posterior to it; the posterior acetabulum has one pit on top. Femora: Anterior femora of the male extending to base of antennae, those of female relatively longer; posterior femora of male surpassing the middle of first genital segment, of female attaining rear margin of the fifth abdominal segment. Abdomen: Length 136 units (holotype), 160 (allotype). Two backward directed spine-like processes on anterolateral margin of sixth ventral segment of male and a pair of hair tufts one- third in front of rear margin on slightly swollen area ; first genital of male longitudinally swollen beneath and depressed laterally; above the segment is elongate with the sides gradually diverging to the rear; the terminal dorsal process short and sharp, not over one-sixth the length of the segment; sixth abdominal tergite of female broader behind than in front, the terminal dorsal process slightly more than a third the length of the segment which bears it. Holotype, allotype, and one paratype labeleid “New Cale- idonia. May 23, 1931, Jean Risbec” in Francis Huntington Snow Entomological Museum, University of Kansas. Twelve para- types labeled as follows: “Brisbane, Australia, Harvard Exp. Darlington.” “Monager Lake, Perth, W.A., X-19-1931, Harvard Exp. Darlington.” “Townsville, Q., March, 1932, Harvard Exp. Darlington.” Most of these from the Harvard Expedition are in the Museum of Comparative Zoology, Harvard. Two para- types, labeled “Oubatche, N. Caledonia” and determined H. aculeata Montr. by Distant are in British Museum. This species is very different in color and shape from H. aculeata Montr. also described from New Caledonia. The latter species is greenish brown, stout, and lacks the hair tufts de- scribed for the males of this new species. This species runs to section 22 of our key to species of eastern hemisphere' and may be separated from the other two species of this section as follows: A. Head not conspicuously longer than the thorax. B. Acetabular pits not conspicuous, less than four on middle acetabula. Males without hair tufts on sixth ventral abdominal segment, H. gracilenta Horvath BB. Acetabular pits conspicuous, four on middle acetabula. Males with hair tufts on sixth ventral abdominal H. risbeci Hungerford AA. Head conspicuously longer than the thorax, H. aculeata Montr. ^ Hungerford, H. B., and Evans, N. E., Annales Mxisei Nationalis Hungarici Vol. xxviii, p. 40, 1934. APRIL, 1938] HUNGERFORD— HYDROMETRA 83 Recently I have examined five specimens forwarded for study by Mr. E. P, Van Duzee from material collected on the Man- garevan Expedition of the Bishop Museum. Four of these are labeled “Tahiti L, Vairao, March 30, 1934. Society Islands, Vairao Plateau, on stagnant pond, E. C. Zimmerman, collector.” One is labeled “Tiupi Bay, Papeari, Society Islands, March 31, 1934, on mape. E. C. Zimmerman, collector.” These specimens, while slightly smaller and showing some slight differences, belong to the species here described and extend its known range. DORSAL ABDOMINAL SCENT GLANDS IN NYMPHS OF LYG^ID^ BY ROBERT L. USINGER' The position and number of the dorsal scent glands in heteropterous nymphs was studied by Guide (Ber. Senck. Naturf. Ges. Frankfort-am-Main, 1902:85-134, pis. 7-8). He found that the typical number and arrangement for Heterop- tera was three glands opening on the anterior margins of the fourth, fifth, and sixth abdominal segments respectively and that most Lygaeidae fell within this category. Lygceus and Cymus, however, were said to have only two glands. I have recently studied numphs of a number of representa- tive genera in an attempt to further define the higher groups of the Lygaeidae. The results are tabulated below: Glands on the fifth and sixth segments only — LYG.®:iNi5:: hygadini, Lygceus, Oncopeltus, Astacops, and Ccenocoris; Orsillini, Nysius, Neseis, Ortholomus, and Oceanides; Metrargini, Me- trarga. Chauliopin.5: : Chauliops. Geocorin^: Geocoris. Blis- sing: Blissus and Ischnodemus. Glands on fourth and fifth segments only — Cyming: Cymini, Cymus, Arphnus, and Minus. Glands on fourth, fifth and sixth segments — all other Lygaeidae known to me including Cyming: Ischnorrhynchini, I schnorrhynchus. Colobathristing: Phcenacantha. Hetero- gastring: Heterogaster. Pachygronthing : Oedancala. Rhy- PARACHROMING: Myodocha, Ligyrocoris, Paromius, Orthoea, Eremocoris, and Gastrodes. The only possible intermediate which I know is Chilacis typhce Perr. (Jordan, Stett. Ent. Zeit., 96:11, 1935) of the Artheneing, in which the anterior gland is obsolescent. 84 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 A NEW SPECIES OF CCELAMBUS FROM CALIFORNIA (Coleoptera: Dytiscidse)^ BY HUGH B. LEECH Vernon, B. C. Coelambus curvipes Leech, n. sp. A medium sized, dull yellow species, with the elytra infus- cate in the apical two-thirds. Front not margined, male pro- tarsal claws unmodified, legs bicolored. Length 3.75 — 4.25 mm. ; width 1.80 — 2.15 mm., the males larger than the females. Head rufous, tinged with piceous near the eyes, and with a pale spot on the vertex. Antennae yellowish, the outer segments inf uscate. Pronotum slightly narrower than the base of the elytra ; rufescent, yellowish laterally, the disc, base, and a spot on each side of the disc, piceous or dark rufo-piceous. Elytra pale tes- taceous in the basal third, and somewhat irregularly along the sides to the apex; disc diffusely infuscate. Dorsal surface shining, not alutaceous. Head and pronotum fairly densely puctate, the punctures rather small and distinctly irregular as to size and position. Elytral punctation coarser, especially towards the apex, and more regular; distinct sutural and discal series of coarser punctures present, the subhumeral series hardly apparent. Under surface black; legs testaceous, the apical fourth of the front and middle femora rufo-piceous ; epipleura pale, rufous apically. Metasternum and coxal plates coarsely punctate, the epipleural and abdominal segments more sparsely and less coarsely so. Male characters: Protarsi rather narrowly dilated, broader than the mesotarsi, both a little broader than the equivalent in the female; claws simple. Front femur weakly arcuate, tumid medially, the tumid area with a few parallel transverse rugae; in the apical third there is on the anterior face a somewhat trans- verse, almost semi-circular depression, the bottom of which makes a notch in the ventral edge of the femur, which is there margined with stiff, golden setae giving it much the appearance of the an- tennal-cleaning organ found on the fore tibiae of many Carabidae; sides of the depression lightly reticulated. Posterior face of the femur with a longitudinal line of long silky pubescence near the upper margin, and a shorter one apically near the lower margin. Front tibia broad, the sides slightly sinuate; with a longitudinal line of very dense long silky pubescence on the middle of the pos- terior face. Middle femur flattened, the anterior face reticulate and with parallel strigae; dorsal margin sinuate; lower (inner) margin ^ Contribution from the Division of Forest Insects, Dominion Entomologist Branch, Vernon, B. C. APRIL, 1938] LEECH— CCELAMBUS 85 strongly arcuately lobed in the basal third, narrowed in apical third, and produced downward at the apex, with a brief longi- tudinal line of short silky pubescence at the apex of the lobe. Middle tibia very lightly reticulated, almost parallel-sided, slightly lobed internally near the base, with a longitudinal line of thin silky pubescence along both the upper and lower edges of the pos- terior face. Hind femur with elongate reticulations, of normal shape. In both curvipes and pedalis the apex of the middle lobe of the aedeagus is broadly rounded; in such other species as I have examined, the tip is always acuminate. Female characters: Front femur only slightly tumid medially, no funnel-shaped depression in apical fourth, with only a trace of the longitudinal lines of silky pubescence on the posterior face. Front tibia without a line of silky pubescence on the posterior face. Middle femur variable: (a) upper margin distinctly sinu- ate, lower margin arcuately produced in basal third, but less strongly so than in the male; lower apical angle produced down- ward, but less than in the male; (b) upper margin slightly sinu- ate, lower weakly lobed in apical half, lower apical angle slightly produced downward; (c) femur of the usual type, sub-parallel sided, apex not produced downward. Middle tibia: (a) broader, very gradually narrowed from apex to near base, then sharply constricted; (b) broad, less gradually narrowed, the basal con- striction hardly apparent; (c) of the usual type, triangular. Hind femur and tibia normal. Holotype $ , length 4.10 mm. ; width 2.12 mm. Oakley, Con- tra Costa Co., Calif., September 5, 1936 (H. B. Leech) ; No. 4596, in the California Academy of Sciences, Entomology. Allotype: 2, length 3.75 mm.; width 1.28 mm.; middle femora and tibiae as in form (b) of above; same data as holotype, in C.A.S., Ent. (No. 4597). Paratypes: 5^, 7$; same data as the holotype. Paratypes will be distributed to the Canadian National Collec- tion, Ottawa, Mr. R. Hopping and Dr. H. C. Fall; the remainder in my own collection. The type locality is a small, shallow, muddy pool amongst Typha, on the north side of the railway embankment a few hun- dred yards from Oakley, Calif. This little pool is not saline, but is much fouled by cattle, and from an accumulation of old tin cans, etc. Curvipes traces in Fall’s key (1919, The North American Species of Coelambus, published by John D. Sherman, Jr., Mount Vernon, N. Y.), to near pedalis Fall, which also occurs in Contra Costa County (Vine Hill), as well as south to San Diego County. Actually, however, it is closer to the recently described thermarum 86 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 Darlington (1928. New Coleoptera from Western Hot Springs. Psyche, 35:1) from hot springs in Nevada. Thanks to Dr. Fall’s generosity, I have a male of pedalis from the type series, and I have studied specimens in the collections of the California Academy of Sciences; I have examined also a male paratype of thermarum in Dr. E. C. Van Dyke’s collection at the Academy. The three species may he separated as follows: 1. Head without a median pale spot at base; robust species, more obtusely rounded in front. Front femur of male with a patch of dense, short pubescence apically; middle tibia strongly, broadly produced inwardly at apex pedalis Head with a median pale spot at base; more elongate species, less obtusely rounded in front. Front femur of male not pu- bescent apically; middle tibia not produced inwardly at apex 2 2. Pronotum piceous, vaguely paler at the sides; elytra pale tes- taceous, with an irregular infuscate cloud from behind the middle nearly to apex. Front femur of male with a broad transverse impression on the interior face a little before the apex; the lower margin of the impression forming a broad shallow emargination in the ventral edge of the femur; femur unicolorous ...thermarum ... Pronotum rufescent, yellowish laterally, the disc, base and a spot on each side of the disc, piceous; elytra pale testaceous, with an irregular infuscate cloud from basal third nearly to apex. Front femur of male with a transverse impression, the lower margin of which forms a deep, semi-circular emargina- tion in the ventral edge of the femur. Femur usually bi- colored curvipes In males of thermarum and curvipes, the profemoral impres- sion is slightly oblique, the top being more apical; the lower end is set with short stiff cilia. In pedalis there is also an oblique profemoral impression but it is broad and shallow, minutely granulose, and runs in the opposite direction; the lower end is apical, but does not form an emargination in the ventral edge of the femur. The progressive modifications of the middle femora and tibiae in the females of curvipes are most interesting; a larger series would probably show intermediates. In the specimens at hand it is noted that when the middle legs are most like those of the males, the apical rufo-piceous patch on the femur is darkest, while in those with unmodified legs it may be entirely absent. APRIL, 1938] MALLIS— THE FIRE ANT 87 THE CALIFORNIA FIRE ANT AND ITS CONTROL BY ARNOLD MALLIS Los Angeles, California Any individual concerned with ant control in California all too soon becomes aware of the importance of the California fire ant, Solenopsis xyloni var. maniosa Wheeler, as an ant pest in the home, garden, and farm. This native ant is exceedingly common in Southern California, as well as in the interior valleys of California up through Sacramento, occurring below altitudes of 1,500 feet. The entomologist and exterminator are interested in this ant due to its habits of raiding such divers foods as soda crackers, cereals, nut meats, bacon and greases, coffee cakes, watermelon, etc., etc. Moreover, this ant by means of its fiery sting and mandibles is prone to attack human beings, and often injures children as they play upon the ground. At times they will invade the bed, making same a bit too warm for its normal occupants. Several women have reported that these ants attack newly-born babies that have been oiled, but the writer is as yet unable to confirm if this is the species actually concerned. Young chicks and other domestic animals often suffer by the depredations of these ants, and they are often incriminat&d by the farmer for stealing and damaging seeds, grains, and nut meats. In the home, they will often remove so much earth from beneath concrete steps as to actually imperil them, and they are at times indirectly the cause of dry rots due to their piling earth on the mudsills beneath the house. Lawns suffer greatly from their unsightly mounds as well as from their tendency to feed upon succulent grass tissue. Not even clothes are immune from these ant rogues, and they will feed upon linen, whether soiled or scrupulously clean, and have been known to bore through an entire box of unused silk hose. In the garden they faithfully tend aphis on ornamental and crop plants, and will often remove the epidermis from the leaves; moreover, they destroy many plants by making their nests about the base of the plants, evidently feeding upon the roots. The farmer often finds these insect villains in his walnuts, almonds, tomatoes, watermelon, and other fruits and vegetables, through which they readily bore their way. In the citrus orchard they tend aphids and coccids, and in certain instances have been 88 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 known to remove the bark from young trees in order to feed upon the cambium. Not the least of these injuries is the nervous effect that these ants have upon house-wives, many of whom are made frantic by a siege of these annoying ants. Lighted store windows play the host to huge swarms of these ants, who dia- bolically enough, often choose those windows advertising ant syrups and ant pastes in order to display their charms. Thus it can be readily understood why these tireless scavangers must frequently be curbed. The workers of these ants are 1.6 to 5.8 mm. in length, with a yellowish-red head and thorax and a black abdomen, and are to be seen foraging throughout the year. The queens are about 6.6 mm. in length, light reddish brown with a black abdomen, and have been observed from the beginning of March through the middle of November. The males are reddish black with reddish-yellow legs. Swarming occurs most commonly from May through September when the multitudinous queens and males, and the innumerable workers major and workers minor literally boil from the confines of the earth. It is then that wingless queens may be found scurrying over the ground. Each nest apparently issues swarms towards the evening of a warm or hot day, particularly after several cool days have transpired. In the fields, the nests of these ants may lack craters, being confined to small round openings in the soil or to fissures in the ground, and are often situated beneath old logs, cow chips, and animal carcasses. When craters are present, they are usually to be found in grass lawns and along concrete walks and steps. The nests in the lawn are irregular, shallow, about one-half to one and one-half inches in depth, often several feet in length; and may present a porous appearance as when situated about the base of a plant. Old bones, buried by dogs, will fre- quently harbor huge numbers of these ants. It is interesting to note the many colorful Staphylinid myrmecophiles emerging from the nest entrances. Favorite nesting places in the vicinity of the house are at the edge of walks, or in cracks in and about steps. Stones and boards appear to be particularly adapted to serve as nesting sites for these ants. In the majority of cases, the nests are situated in the vicinity of the kitchen, and not infrequently they will nest in the walls whereupon they will be found emerging from crevices in closets and between the tiles APRIL, 1938] MALLIS— THE FIRE ANT 89 of the sink. Should a furnace be situated in the basement, the ants will often have enormous nests directly beneath outlets emerging from the furnace. The worker minors are very pugnacious and do not hesitate to bite and sting whenever they are disturbed about their nests. When so aroused, they rush forth from the nests in frenzied hordes, raise their blackish abdomens, and vibrate them very rapidly; although the worker major does not hesitate to bite, it rarely stings. The tendency to sting apparently diminishes in- versely with the .distance from the nest. Some individuals are affected for hours by the irritating sting whereas others may not notice it after thirty seconds. Apparently these ants have the tendency to seek tender portions of the skin, such as, between the fingers, before they assiduously apply both abdomen and mandibles. During the warmer part of the day, the ants for the most part keep to their nests, foraging most actively in early morn- ing and towards the evening. However, if the nests are in a shaded and moist situation, they will forage throughout the entire day. At night they will be found about lights where they prey upon mayflies, hydrophilids, corixids, and upon other in- sects that are attracted to light. The Argentine ant, Iridomyrmex humilis Mayr, intolerant of all other ant life, is the deadly enemy of the California fire ant; and the writer has observed the Argentine ants on several occasions to annihilate colonies of the fire ants. It has also been observed that in those localities where Pheidole hyatti Emery ocurs, it is held in abeyance by the fire ant; and once the fire ant is controlled, this ant may then commence to invade the home in its stead. Control of these ants is usually rather difl&cult since arsenical syrups and baits are rarely effective. Syrups and baits utilizing thallium sulphate are much more efl&cient, but ,due to the insidious nature of this poison, as well as to the lack of an effective antidote, the use of thallium sulphate by pri- vate individuals, is prohibited in California. Thus, of necessity, other methods must be utilized in controlling this ant. The writer has used carbon disulfide, and a mixture of carbon disulfide and carbin tetrachloride in the ratio of 1 part carbon disulfide to 3 parts carbon tetrachloride, in the direct control of these 90 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 ants, with excellent results. Since carbon disulfide by itself is dangerously explosive, the use of the mixture is to be recom- mended. Armed with a screw driver, a burlap bag, and an oil can with an eight-inch curve-tipped spout, a survey for ant colonies is conducted about the home. Since it is in the vicinity of the kitchen that most of the troublesome colonies are encountered, it is usually advisable to make the in- spection when the kitchen side of the house is shaded, for the ants may not emerge from their nests in full sunlight. The screw driver is used to probe the earth along the foundation, walks, steps, and around plants; it is also utilized to strike the sides of the curbing, wooden stakes etc. It is thus that the fire ants are disturbed, when they emerge in fiery masses, to their own undoing. For now, a few shallow holes are made in the vicinity of the nest by means of the screw driver, and then a few drops of the liquid fumigant are poured from the oil can into each opening. The holes are then covered by pressing the earth with the handle-end of the screw driver. Cracks in the pavement and steps are favorite nesting sites, and these are also treated with a few drops of the fumigant, and then covered for a few minutes by the wet burlap bag in order to confine the fumes. This treatment when repeated two or three times over a period of two weeks usually gives very satisfactory control. When the ants are known to emerge from ventilators within the house, or even from cracks in the floor situated in the center of the house, it may then be concluded that the ants are probably nesting beneath the house. Excellent control for at least one season may be obtained by dusting the under por- tion of the house with lime, slaked or unslaked lime being equally effective. Approximately three-fourths of a bag of lime, an amount sufl&cient for the average six room home, is forced through the ventilators beneath the house by a bellow-type duster. The dust should be evenly distributed throughout, with particular attention paid to the area beneath the kitchen. After a day or two, a few struggling colonies may emerge at the edges of the foundation, and these may be treated with the liquid fumigant in the previously described manner. It may be men- tioned that black widow spiders, and other spiders as well, appeared to be sorely distressed by the lime dusting treatment. MALLIS— THE FIRE ANT APRIL, 1938] 91 When the ants occur in closets, they can be curbed by con- fining the fumes of a saucerfull of ethylene dichloride-carbon tetrachloride mixture to the closets for a few days. This mix- ture is composed of 3 parts, by volume, of ethylene dichloride and 1 part, by volume, of carbon tetrachloride. Experiments with carbon disulfide emulsion, as well as with corrosive sublimate solution have been conducted, but much work must yet done to prove their efl&ciency. Notes on Aphids of Eucalyptus Although aphids have been recorded from Eucalyptus from other parts of the world there have been no reports, as far as known, from this host in North America. However, the author has recently collected two species of aphids upon Eucalyptus corynocalyx, sweet gum, on the campus of the University of California, November 11th and 12th, and many times since then. As might be expected, the insects were of species common to this area. That occurring in greater numbers was Aphis gossypii Glover; those present in lesser numbers were four or five specimens of viviparous females of what is apparently Amphorophora nervata (Gill.). They occurred on the new tender shoots of the host, being attended by the Argentine ant, Iridomyrmex humilis Mayr, which took the aphids into its nest during the rain storms and brought them out later. The numbers of the cotton aphid were so great that at times the twigs were distorted and withered. — W. W. Sampson. A Hawaiian Elaterid Beetle Introduced into California The Hawaiian sugar cane wireworm, Monocrepidius exsul Sharp, has become established in Alameda, California. The adult was first collected by Herbert W. Graves, July 15, 1937 ; and the larvae were later taken in February and March, 1938. The identification was made by Dr. E. C. Van Dyke of the Uni- versity of California. All of the insects were located in the area of one city block in the western part of Alameda which is composed of sandy soil. The exact extent of this establish- ment is not known, but further investigation is being made by the collector. The adult was found on a lawn; while the larvae, both young and mature, were feeding on the roots of grass. — Herbert W. Graves. 92 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 THE ORNATE APHID, NEW TO NORTH AMERICA {Myzus ornatus Laing) BY E. O. ESSIG My experiences with the ornate aphid, Myzus ornatus Laing, during the past two years have been such as to induce me to make this permanent record of them. The discovery of a new and distinct insect pest is not a rare thing, but the circumstances involved in connection with this particular species are most inter- esting. On April 4, 1936, I collected a very small pale green aphid from the young tips of fuller’s teasel, Dipsacus fullonum, growing on a vacant lot adjacent to my back yard in Berkeley, California. It occurred in considerable numbers on that host, but I was unable to find it on any of the many ornamental plants that were growing just over the fence in my own yard. How- ever, a few specimens were taken on sheep sorrel, Rumex aee- tosella, about a mile distant. The fact that both of these hosts were introduced led to the conclusion that the aphid was prob- ably also an immigrant and so specimens were sent to a number of American aphidologists for determination. It proved to be unknown to all of them. Failing to find a published descrip- tion I .decided to describe it as a new species and sent in a manu- script for publication just prior to leaving for a year of aphid collection and studies in Europe. I forgot all about the little green aphid, until October 14, when, examining some leaves of English ivy, Hedera helix, collected in the Jardin Botanique, Brussels, Belgium, which were heavily infested with the ivy aphid. Aphis hederce Linn., I discovered 4 apterous specimens of what I was sure could be no other than the one on fuller’s teasel in California. This convinced me that it was probably not a new species, but what was it? A diligent search along the ivy-cov- ered walls of the gardens in the heart of a great city yielded a few more specimens. And then winter frosts suddenly put a stop to my out-door collecting. To my great surprise and delight the new aphid was found in abundance in the greenhouses of the Jardin Botanique, where it was taken on Crotalaria ana- gyroides, Achyranthes sp. (Iresine) , Lantana sp., and Aelo- tr opium peruvianum, all introduced plants. APRIL, 1938] ESSIG— MYZUS ORNATUS 93 Upon my arrival at the British Museum of Natural History, London, on January 6, 1937, the mounted specimens were anxiously displayed to Frederick Laing, who immediately recog- nized the species as Myzus ornatus described by him in 1932^ from specimens collected on violet by L. N. Staniland at Devon, near Dawlish, England, in February, 1932. This ended all of my anticipations and made it necessary to withdraw the manu- script from publication and thus avert another synonym, which fortunately succeeded. Laing had already taken the species on a considerable num- ber of host plants in various parts of England, and he gave me specimens taken on Salvia sp. and on Chrysanthemum sp. In the course of my collecting in England additional specimens were secured as follows: On Richardia rehmanni, Panax lancasteri, and Buddleia ori- entalis in the greenhouses at Wisley, Surrey, April 8, 1937 ; on the young shoots of Ulmus campestris and on dandelion and JJrtica dioica out of doors at Virginia Waters, Surrey, May 17, 1937; on apple, outside, at Arundel, Surrey, June 1, 1937; and on Buddleia sp., dandelion, Geum urbanum, Lapsana communis, Salvia sp., Scabiosa sp., and Teesdalia nudicaulis, out of doors, at Cheddar, Somerset, June 2, 1937. Since returning to California I have found this aphid quite abundant in my garden at Berkeley on Fuchsia elegans, Poten- tilla sp., and violet. It has also been taken in Berkeley on Ranunculus repens by W. Sampson, November 1, 1937, and on cultivated strawberry by E. Ivy, December 4, 1937. Specimens were also received which were collected on heliotrope at Los Angeles by Ralph H. Smith, December 6, 1937. From all the evidence at hand it seems probable that this aphid may have been introduced into all of these localities in California and in Europe. Otherwise it is hardly possible that it could have escaped detection for so many years. Description Apterous viviparous female. Very small, oval, flattened, pale yellow or green, with darker green or dusky broken bands across the dorsum as figured. In cleared specimens these dark bands prove to be series of dark glandular pores arranged in irregular ^ Laing, F. A new aphid-pest of violets {Myzuswnatus sp. n.). Ent. Monthly Mag., 68:62-53, 1932. 94 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 Fig. 1. The ornate aphid, Myzus ornatus Laing. A, adult alate female; a, cauda; c, rostrum; d, front of head and antenna; /, cornicles; h, lateral abdominal dusky area; i, group of abdo- minal gland pores; j, fenestras near base of subcostal vein. B, adult apterous female; b, cauda; e, front of head and antenna; g, cornicles; I, gland pores arranged in dark broken bands on abdomen; k, lateral gland pores. All greatly enlarged. (Draw- ing by U. S. Works Progress Administration.) APRIL, 1938] ESSIG— MYZUS ORNATUS 95 broken transverse bands. Body rugose and somewhat papillated. Appendages transparent with the tarsi, apical portions of the antennee and cornicles, cauda, anal plate, and genital plate dusky. A few short hairs on the antennae and legs. Frontal tubercles gibbous, rough, with few short slightly knobbed hairs, which occur also on the antennae. Antennal segment I large and convex on the inner margin, but not gibbous. Length of antennal segments : I, 0.07 mm.; II, 0.05 mm.; Ill, 0.23 mm.; IV, 0.15 mm.; V, 0.13 mm.; VI, 0.24 mm. (base 0.07 mm.; unguis 0.17 mm.); total 0.87 mm. Secondary sensoria absent. Rostrum extend- ing beyond second coxae; pale with dusky tip; apical seg- ments narrow. Cornicles almost cylindrical ; tapering slightly apically; terminating in a conspicuous flange; imbricated and roughened; apices often slightly recurved; length 0.31 mm. Cauda nearly conical, slightly constricted basad; with two or three pairs of hairs; length 0.12 mm. Length of body 1.20 to 1.70 mm.; width 0.70 to 0.90 mm. Alate viviparous female. Shape normal; black and pale green- ish-yellow with dusky markings on the abdomen as illustrated. Antennse, legs, cornicles, and cauda largely black or dusky. Frontal tubercles less prominent than in the apterae. Antennse shorter than the body; lengths of the various segments: I, 0.05 mm.; II, 0.06 mm.; Ill, 0.40 mm.; IV, 0.27 mm.; V, 0.20 mm.; VI, 0.38 mm. (base 0.10 mm.; unguis 0.28 mm.); total 1.36 mm. Circular secondary sensoria arranged in a row throughout much of the length of III and varying in number from 7 to 12. Wing veins brown, faintly dusky bordered, the stigma long. Rostrum extend- ing to the second coxae. Cornicles similar to those of the apterae, but smaller, 0.25 mm. long. Cauda 0.14 mm. long. Length of body 1.50 to 2 mm.; width 0.8 mm.; length of fore wings 2.50 to 3 mm. Carabus forreri Bates in Arizona Numerous specimens of this Mexican species of Carabus have been collected in the Chiricahua Mts. of Arizona within recent years. The first seen were collected on June 21, 1927, by J. August Kusche and others were collected July 12, 1936, by M. Cazier and Edward S. Ross. They are absolutely identical with specimens from Durango, Mex., numerous examples of which I have, including a practical paratype received from the British Museum. — Edwin C. Van Dyke. 96 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 2 BELLS IN MEMORY OF W. E. HINDS BY STANLEY F. BAILEY Davis, California Among the many famous entomologists who have passed on during the past two years was Dr. Warren Elmer Hinds. On January 11, 1936, Doctor Hinds died suddenly of a heart attack at his home at Baton Rouge, Louisiana. Templeton, Massachusetts, is his present resting place. His excellent work on thrips, cotton insects, sugar cane pests and other groups totals more than one hundred papers. A most excellent obituary has heen published by F. L. Thomas, Journal of Economic Ento- mology, 29:225-226, 1936. In 1929 Prof, E. 0. Essig wrote with feeling a paper entitled “Entomological Sentiment” (Ann. Ent. Soc. Am., 22:335-340). Therein he stated that we should concern ourselves with placing suitable memorials to “great leaders in entomology, as a recog- nition of their services to the world and to preserve that infor- mation for posterity.” It is with pleasure that I call attention to the chime recently presented to the Massachusetts State College and dedicated to Doctor Hinds by his classmate Bernard H. Smith. Special exercises were held at Amherst on May 1, 1937, at which time the .dedication was made to “an enduring memory of one of our worthiest almuni.” The chime consists of 10 bells ranging in weight from 275 pounds to 2000 pounds. The bells are of pure bell metal, made of 78 per cent of Lake Superior copper and 22 per cent of new block tin. Ages of experience have shown that only these metals, in the correct proportions, form a perfect ringing alloy. The bells were made and installed by a New York concern, the fore- runners of which cast the Liberty Bell. On the Great Bell of the chime is inscribed “In memory of Warren Elmer Hinds, class of 1899, a distinguished scientist to whom music and the beauty of this valley were ever dear, these bells are presented to Alma Mater by his classmate Bernard H. Smith, A.D. 1937.” As time adds to the list of great names in entomology, may we occasionally have the desire to pause and “look back at the landmarks in the distance and attempt to evaluate the lives and contributions of the outstanding men in this science.” I INSECT BOXES Standard size black insect box with sides of box and cover made of 1 / 4 " redwood. The top, bottom and shoulders are of heavy cardboard. Inside dimensions: I2f4x8f4x2% inches. Prices: 60 cents each. Lots of one dozen, 50 cents each. With Masonite bottom, 15 cents extra. With glass top, 50 cents extra. Prices for larger quantities on request. RAISIN AND THIEBAUT BROS., LTD. 346 First Street, San Francisco, Calif. ADVERTISING RATES PAN-PACIFIC ENTOMOLOGIST Per Year Whole Page... Half Page Quarter Page Eighth Page.. Four Issues $20.00 11.00 6.00 3.50 ★ ★ ENTOMOLOGICAL NEWS An illustrated magazine, published monthly — except August and September — devoted to the study of INSECT LIFE. It contains a list of the titles of the current Literature on American Entomology, articles by the leading authorities in the United States and Canada. It is a nec- essary journal of reference for working entomologists, and contains valu- able information for economic and sj'stematic students. Annual subscription price S3.00. Foreign (except Canadian $3.15) subscriptions $3.25. Single copies 35 cents. Address ENTOMOLOGICAL NEWS, 1900 Race Street, Philadelphia, Pa. The binocular microscope shown at the left Is the new wide field binocular, BKW. This stand is inclinable, with large sturdy horseshoe base. The mirror Is 60 mm. di- ameter. When desired, the base may be removed and the microscope placed di- rectly upon the specimen. The BKW is priced from $127.50 depending upon the equipment selected. BKW-5, for example, in- cludes two pairs eyepieces ( I OX and I5X) three sets of paired objectives (0.7X, 1 .5X, 2.0X mounted in Drum Nosepiece, and case, $198.00. MEETS THE REQUIREMENTS OF THE ENTOMOLOGIST The KW Wide Field Binocular Miscroscope is especially suited to the "all around" needs of the entomologist. Long working dis- tance allows ample room for manipulating large specimens. The erect, stereoscopic view facilitates dissection. The objectives and eyepieces of the KW are designed to give an extremely wide field and high eye point. An exclusive feature of the KW Series is the B&L patented drum nosepiece. A wide selection of Binocular Mlsroscopes of the Greenough type is described in Catalog D-I5- These Include, in addition to the KW Series, supplementary models designed to suit specific needs of the educational or industrial worker. We shall be glad to suggest a model for your work. • • BAUSCH & LOMB OPTICAL COMPANY ROCHESTER. NEW YORK SAN FRANCISCO ADDRESS: 593 MARKET STREET Vol. XIV July, 1938 No. 3 THE Pan -Pacific Entomologist CONTENTS LINSLEY, HABITS AND DISTRIBUTION OF SOME SPECIES OF PLEOCOMA 97 LINSLEY. SYNONYMICAL NOTES ON SOME NORTH AMERICAN CERAMBYCID.E 105 HATCH, A NEW SPECIES OF DONACIA FROM WASHINGTON 110 MEAD, NEW SUBSPECIES AND NOTES ON DONACIA 113 TING, A NEW SPECIES OF PANSCOPUS 121 LA RIVERS, NOTES ON CYSTEODEMUS IN SOUTHERN NEVADA 124 PRITCHARD, THE GENUS HODOPHYLAX JAMES 129 BOHART, G. E., SYNOPSIS OF THE GENUS DALMANNIA IN NORTH AMERICA 132 BOHART, R. M., SYNOPSIS OF THE GENUS EUPARAGIA 136 USINGER, A NEW GENUS AND SPECIES OF ORSILLINI FROM CHINA 140 FIELD, A NEW RACE OF LYC^NA MARIPOSA 142 ARMITAGE, GEORGE RINGO WILSON, OBITUARY NOTICE 143 Published by the Pacific Coast Entomological Society in co-operation with The California Academy of Sciences San Francisco, California 1938 THE PAN-PACIFIC ENTOMOLOGIST Published quarterly in January, April, July and October by the Pacific Coast Entomological Society in co-operation with the California Academy of Sciences. Domestic and foreign subscriptions $2.00 in advance. Sub- scriptions should be sent to the treasurer, E. R. Leach, De- partment of Entomology, California Academy of Sciences, Golden Gate Park, San Francisco, California. Make checks payable to the “Pan-Pacific Entomologist.” Manuscripts for publication and communications regard- ing non-receipt of numbers, change of address, requests for sample copies, etc., should be addressed to the editor, Mr. E. P. Van Duzee, California Academy of Sciences, Golden Gate Park, San Francisco, California. Advertisements will be accepted for the back cover pages. For rates address the editor or treasurer. Twenty-five copies or more of author’s extras will be fur- nished free on request. Additional copies will be supplied at cost of publication if a request is received with the manu- script. INSECT BOXES Standard size black insect box with sides of box and cover made of I/ 4 " redwood. The top, bottom and shoulders are of heavy cardboard. Inside dimensions: l 2 M:X 8 %x 2 % inches. Prices: 60 cents each. Lots of one dozen, 50 cents each. With Masonite bottom, 15 cents extra. With glass top, 50 cents extra. Prices for larger quantities on request. RAISIN AND THIEBAUT BROS., LTD. 346 First Street, San Francisco, Calif. Entered as second class matter, February 10, 1925, at the postoffice at San Francisco, California, under Act of August 24, 1912. The Pan-Pacific Entomologist VOL. XIV, No. 3 July, 1938 NOTES ON THE HABITS, DISTRIBUTION, AND STATUS OF SOME SPECIES OF PLEOCOMA (Coleoptera, Scarabaeidae) BY E. GORTON LINSLEY University of California (Continued from page 58) Pleocoma puncticollis Rivers Pleocoma puncticollis normally is clothed with black or brownish-black hairs. However, one example from a series col- lected at Beverly Hills, Calif., October 1928 (Van Dyke collec- tion) is clothed entirely with golden pubsecence, indicating that this character should be used with discretion. During the summer of 1935, workmen in Westwood Hills, Los Angeles County, uncovered females of this species two and three feet beneath the surface of the ground and larvae as ideep down as eight feet. The fact that living females were found in midsummeP suggests either that this sex lives throughout the year or that pupation occurs early and activity awaits the winter rains. If this last were true, one would expect also to find males in the course of summer excavation and yet thus far, to the b^t of my knowledge, no males have been found at that time. In Berkeley, pupae of male hehrensi may be found even after the first rains have brought. out one or two flights. Distribution of Species Our knowledge of the distribution of Pleocoma is still in a fragmentary state. On the basis of available data, the most widely (although discontinuously) distributed species appear to be puncticollis (Santa Monica, Los Angeles Co., to Alamo, Lower California), duhitalis (Forest Grove, Washington Co., to Cor- valis, Benton Co., Oregon), australis (Mt. Wilson, Los Angeles Co., to San Diego Co.), and hirticollis (Nevada Co. to Fresno ® Females of hehrensi have also been taken in midsummer (E. S. Ross, col- lector) as well as those of australis (J. O. Martin, collector). 98 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 Co.), although the writer has been unable personally to verify the southern-most records for the last two species. Most state- ments in the literature indicating a wide range for a species have resulted from the confusion of more than one species. As has been shown above, Mr. Davis’ records for P. hehrensi were based in part upon P. sonomce, and his statement that “P. fimbriata seems to be the most common and widely distributed species in the genus” resulted from confusion with P. tularensis. The large extent of the known territory occupied by Pleocoma today, even if one excepts the Alaska record, when considered in the light of the limited means of dispersal, indicates a relatively ancient distribution. The genus was, in all probability, already widespread in the Miocene and its distribution was undoubtedly affected by the climatic and topographic changes which have taken place since that period. During the Pliocene much of California was occupied by inland seas. An arm of the sea extended inward through Humboldt County, another just north of the present San Francisco Bay, a third near Monterey Bay, etc. As a result, much of the San Joaquin Valley was under water, and the coastal region south from the Sonoma area was repre- sented by a chain of islands”. When the known present distri- bution of Pleocoma is superimposed upon a palaeogeographic map of Pliocene California^ a striking correlation is observable between its present occurrence and the distribution of Pliocene land masses. No known localities are far from these former land areas. This may possibly account for the absence of the genus from many parts of California and also suggests additional regions where species may yet be found (i.e. coastal region in Monterey, San Luis Obispo, Mendocino, and Del Norte Counties; Santa Inez and Santa Lucia Mts., etc.) If the Alaskan record is correct, a large region, including British Columbia, Alberta, Montana, Idaho, etc., must be considered as possibly having once contained, or even still contains Pleocoma. The chains of moun- tains in this region (Rocky Mts., Bitter Root Mts., etc.) may well have offered the migration lanes by which the present represen- ® For a discussion of the effect of this Pliocene archipelago upon the distri- bution of California plants, cf : Mason, 1936, Cam. Inst. Wash., Publ. 416 :132. Compare with Clark, 1921, Journal of Geol., 29 :612, and Dorf, 1933. Cam. Inst. Wash., Publ. 412.47. JULY, 1938] LINSLEY— PLEOCOMA 99 tatives of the genus reached Utah. The widespread Pleistocene glaciation may account for the absence of the genus from these areas today, if indeed it is entirely absent, although, in view of the tolerance of many existing species for cold and wet conditions, one would expect the survival of some species on nunataks or along the margin of the glaciated area. We must wait, therefore, for more complete distributional information before any general conclusions may be drawn on the basis of geological evidence. The following is a summary of the distribution of Pleocoma as known to the writer: Alaska : trifoliata : Seward. Washington: crinita: Klickitat Co. (Glenwood). Oregon : oregonensis: Sherman Co. (Wasco). dubitalis dubitalis: Washington Co. (Dilley, Forest Grove) ; Marion Co. (Salem); Benton Co. (Corvalis). dubitalis leachi: Clackamas Co. (Colton, West Linn). minor: Hood River Co. (Hood River). simi: Douglas Co. (Cleveland). carinata: Jackson Co. (Mt. McLoughlin) . California: shastensis: Siskiyou Co. (Pondosa) ; Shasta Co. (Redding). sp. indet.: Shasta Co. staff: “California Mer.” hirticollis hirticollis: Nevada Co. (Nevada City) ; Yuba Co. (Marysville area); Fresno Co. (San Joaquin^). hirticollis vandykei: area about San Francisco Bay (So- noma, Alameda, Santa Clara counties). edwardsi: Nevada Co. (Washington) ; Yuba Co. (Browns- ville). fimbriata: El Dorado Co. (Placerville) . blaisdelli: Calaveras Co. (Mokelumne Hill). hoppingi: Tulare Co. (Kaweah) ; Fresno Co. (Millwood). tularensis: Tulare, Fresno, Madera counties (foothills). “fide Davis, 1936, Bull. So. Calif. Sci., 34 :26. 100 THE PAN-PACIFIC ENTOMOLOGIST [yoL. XIV. NO. 3 sp. indet.: Kern Co. (Kernville). hirsuta: Los Angeles Co. (Sierra Madre Mts. near Lebec). hadia: Los Angeles Co. (Mt. Wilson). australis: Los Angeles Co. (Mt. Wilson) ; San Diego Co. (Warner’s Hot Springs^^). hicolor: San Bernardino Co. (San Bernardino Mts.). puncticollis: Los Angeles Co. (Beverly Hills, Santa Mon- ica) ; San Diego Co. (Oceanside, Del Mar, Julian); Lower Calif. (Alamo). sp. indet.: Santa Barbara Co. (Carpenteria) . sp. indet.: Monterey Co. (Carmel, Soledad). conjungens: Santa Cruz Co. (Santa Cruz). hehrensi: Marin, Contra Costa, Alameda, Santa Clara, San Mateo, San Francisco counties. rickseckeri: Sonoma Co. (Sylvania). sonomae: Sonoma Co.; Napa Co. (Mt. St. Helena). Utah: ulkei: “Utah”. remota: “Utah”. Bibliographical and Synonymical Catalogue Genue Pleocoma LeConte LeConte, 1856, Proc. Acad. Nat. Sci. Phil., 8:24. LeConte, 1859, Proc. Acad. Nat. Sci. Phil., 11:71. Schaufuss, 1870, Nunquam Otiosus, p. 50. LeConte, 1874, Trans. Am. Ent. Soc., 5:81. Osten-Sacken, 1874, Trans. Am. Ent. Soc., 5:84 (larva). Gerstaecker, 1883, Stett. Ent. Zeit., 44:436. Gerstaecker, 1888, Ent. Am., 3:202 (transl.). Horn, 1888, Trans. Am. Ent. Soc., 15:1. Horn, 1888, Ent. Am., 3:233. Arrow, 1912, Coleopt. Catal., 43:4 (catalogue). Davis, 1916, Bull. Brook. Ent. Soc., 11:11. Leng, 1920, Cat. Col. No. Am., p. 252 (list). Davis, 1935, Bull. So. Calif. Acad. Sci., 33:123, 34:4. “ fide More, 1987, Oco. Pap. San Diego Soc. Nat. Hist., 2:83. JULY, 1938] LINSLEY— PLEOCOMA 101 australis Fall, 1911, Ent. News, 22:65, ^ 2. Davis, 1918, Bull. Brook. Ent. Soc., 13:117 (habits). Davis, 1935, Bull. So. Calif. Acad. Sci., 34:14, pi. 1, f. 4, 22, S 9. badia Fall, 1917, Bull. Brook. Ent. Soc., 12:15, Davis, 1918, Bull. Brook. Ent. Soc., 13:117 (habits). Davis, 1935, Bull. So. Calif. Acad. Sci., 34:26, pi. 1, f. 1, 17, ^ 2. behrensi Le Conte, 1874, Trans. Am. Ent. Soc., 5:83, $ 2. Horn, 1888, Trans. Am. Ent. Soc., 15:6, pi. 1, f. 3, 4, ^ 2. Horn, 1888, Ent. Am., 3:234, fig., S . Rivers, 1889, Ent. Am., 5:17 (habits). Rivers, 1890, Ent. Am., 6:70 (habits). Linsley, 1935, Pan-Pac. Ent., 11:14 (habits), von Blocker, 1935, The Corwior, 37:188 (habits). Davis, 1935, Bull. So. Calif. Acad. Sci., 34:21, pi. 1, f. 14, 21 , ^ 2 . bicolor Linsley, 1935, Pan-Pac. Ent., 11:11, $. Davis, 1935, Bull. So. Calif. Acad. Sci., 34:15, blaisdelli Linsley, 1938, Pan-Pac. Ent., 14:55, conjungens Leach (nec Horn), 1933, Pan-Pac. Ent., 9:185. carinata Linsley, 1938, Pan-Pac. Ent., 14:56, $ . conjungens Horn, 1888, Trans. Am. Ent. Soc., 15:7, pi. 1, f. 10 , Horn, 1888, Ent. Am., 2:234, fig., $. Davis, 1935, Bull. So. Calif. Acad. Sci., 34:28, pi. 1, f. 10 $ . crinita Linsley, 1938, Pan-Pac. Ent., 14:53, $. dubitalis Davis, 1935, Bull. So. Calif. Acad. Sci., 34:30, $, staff var. leachi Linsley, 1938, Pan-Pac. Ent., 14:52, $ 2, dubitalis subsp. edwardsi LeConte, 1874, Trans. Am. Ent. Soc., 5:83, $ . Davis, 1935, Bull. So. Calif. Acad. Sci., 34:33, pi. 1, f. 10 , staff Horn (nec Schaufuss), 1888, Trans. Am. Ent. Soc., Horn, 1888, Ent. Am., 3:235, 15:9, pi. I, f. 12, ulkei Leach (nec Horn), 1933, Pan-Pac. Ent., 9:184, fimbriata LeConte, 1856, Proc. Acad. Nat. Sci. Phil., 8:25 $ . LeConte, 1857, R. R. Surv. 47th Parallel, Zook, 9:40, pi. 1, f. 13 (pars) . 102 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 Schaufuss, 1870, Nunquam Otiosus, p. 56, $ . LeConte, 1874, Trans. Am. Ent. Soc., 5:82, S. Horn, 1888, Trans. Am. Ent. Soc., 15:6, pi. 1, f. 1, 2, $ . Horn, 1888, Ent. Am., 3:234, fig., S. Linsley, 1935, Pan-Pac. Ent., 11:13, fig., S. hirsuta Davis, 1934, Proc. Ent. Soc. Wash., 36:38, $ , conjungens var. Davis, 1935, Bull. So. Calif. Acad. Sci., 34:29, S, cdn- jungens var. hirticollis Schaufuss, 1870, Nunquam Otiosus, p. 58, LeConte, 1874, Trans. Am. Ent. Soc., 5 :83, $ 9 . Horn, 1888, Trans. Am. Ent. Soc., 15:8, pi. I, f, 7-9, $ 9. Horn, 1888, Ent. Am., 3:234, fig., Davis, 1935, Bull. So. Calif. Acad. Sci., 34:23, pi. 1, f. 12, 23, ^ 9 . fimbriata LeConte, 1857, R. R. Surv. 47th Parallel. Zool. 9:40 (f.n.), pi. 1, f. 13 (pars). vandykei Linsley, 1938, Pan-Pac. Ent., 14:56,^, hiricollis subsp. hoppingi Fall, 1906, Ent. News, 17:394, $ 9. Davis, 1935, Bull. So. Calif. Acad. Sci., 34:25, pi. 1, f. 6, 18, 24, ^9. minor Linsley, 1938, Pan-Pac. Ent., 14:52, oregonensis Leach, 1933, Pan-Pac. Ent., 9:186, $ . Davis, 1935, Bull. So. Calif. Acad. Sci., 34:17, $ . remota Davis, 1934, Proc. Ent. Soc. Wash., 36:23, $ . Davis, 1935, Bull. So. Calif. Acad. Sci., 34:8, pi. 1, f. 9, $ . hehrensi Smith (nec LeConte), 1885, Proc. Ent. Soc. Wash., 1:33. rickseckeri Horn, 1888, Trans. Am. Ent. Soc., 15:5, pi. 1, f. 5, 6, ^ 9 . Horn, 1888, Ent. Am., 3 :234, fig., $ . Davis, 1935, Bull. So. Calif. Acad. Sci., 34:12, pi. 1, f. 7, 16, ^ 9 . puncticollis Rivers, 1889, Ent. Am., 5:17, $ . Davis, 1935, Bull. So. Calif. Acad. Sci., 34:11, pi. 1, f. 3, $ . shastensis Van Dyke, 1933, Pan-Pac. Ent., 9 :183, $ . Linsley, 1935, Pan-Pac. Ent., 11:15, var. $. Davis, 1935, Bull. So. Calif. Acad. Sci., 34:10, pi. 1, f. 15, $ . JULY, 1938] LINSLEY— PLEOCOMA 103 sonomae Linsley, 1935, Pan-Pac. Ent., 11:12, fig., $ . Davis, 1935, Bull. So. Calif. Acad. Sci., 34:23, $ . staff Schaufuss, 1870, Nunquam Otiosus, p. 52, $ . Sharp, 1875, Ent. Mo. Mag., 11:206. Ohaus, 1909, Deutsche Ent. Zeitschr., p. 430, fig., $ . 104 THE PAN-PACIFIC ENTOMOLOGIST [yoL, XIV. NO. 3 Davis, 1935, Bull. So. Calif. Acad. Sci., 34:31, S. adjuvans Crotch, 1874, Check-list, p. 58. trifoliata Linsley, 1938, Pan-Pac. Ent., 14:57, $. tularensis Leach, 1933, Pan-Pac. Ent., 9:186, S . Linsley, 1935, Pan-Pac. Ent., 11:13, fig., S . Davis, 1935, Bull. So. Calif. Acad. Sci., 34:19, S, fimbriata var. fimbriata Davis (nec LeConte), 1935, Bull. So. Calif. Acad. Sci., 34:17, pi. 1, f. 11, simi Davis, 1934, Proc. Ent. Soc. Wash., 36:24, 5. Davis, 1935, Bull. So. Calif. Acad. Sci., 34:15, pi. 1, f. 5, $ . ulkei Horn, 1888, Trans. Am. Ent. Soc., 15:9, pi. 1, f. 11, 5 . Horn, 1888, Ent. Am., 3:234, fig., 5. Davis, 1935, Bull. So. Calif . Acad. Sci., 34:34, pi. 1, f. 8, $ . The Insect Types From the Early Expeditions of the California Academy of Sciences in Lower California The recent statement by Mr. J. Bequaert, in his excellent paper on Eumenes\ that the type of Eumenes pedalis Fox was destroyed, emphasizes a widespread belief that the insect types from the expeditions of the California Academy of Sciences to Lower California in 1889 to 1894 were lost in the San Fran- cisco fire of 1906. Actually the types of the Hymenoptera described by Fox, Ashmead and Pergande, the Horn types of Coleoptera, and the Uhler types of Hemiptera were saved through the efforts of Miss Alice Eastwood, Curator of the Department of Botany. Many of these speeies are represented in other eol- lections by “eotypes,” but the actual specimens which these authors considered as the types, including those which were uniques, are still in the collection of the California Academy of Sciences as stated by the several authors in the remarks prefa- tory to their reports. This is more fully explained by Gustav Eisen in his Historical Sketch of these expeditions (Proc. Calif. Acad. Sci., Ser. 2, vol. V, page 765, 1895). — E. Gorton Linsley. ^ Bequaert, J., 1938. The three Emnenes of Canada and the Northeastern United) States, with notes on other North American species. Bull. Brooklyn Ent. Soc., 33:59-70. LINSLEY— CERAMBYCID^ 105 JULY, 1938] SYNONYMICAL NOTES ON SOME NORTH AMERICAN CERAMBYCID^ (Coleoptera) BY E. GORTON LINSLEY University of California The following synonymical notes have, with a few excep- tions, resulted from the examination of certain types of Ceram- bycidae in the collection of the United States National Museum, Washington, D. C. Prionus californicus Motschulsky calif ornicus Motschulsky, 1845, Bull. Soc. Nat. Moscou, 1 :89. crassicornis LeConte, 1852, Jour. Acad. Nat. Sci. Phila., (2) 2:108. ineptis Casey, 1912, Mem. Coleopt., 3:242, n. syn. humeralis Casey, 1924, Mem. Coleopt., 11:216, n. syn. Prionus ineptis Casey is listed in the Leng Catalogue (1920: 266) as a synonym of P. curvatus LeConte, but the type speci- men appears rather to belong to californicus. P. humeralis is a normal male of californicus. Opsimus quadrilineatus Mannerheim quadrilineatus Mannerheim, 1843, Bull. Soc. Nat. Moscou, 16:305. hiplectralis Casey, 1924, Mem. Coleopt., 11:229, n. syn. Opsimus hiplectralis Casey is conspecific with 0. quadri- lineatus Mannerheim. Spondylus upiformis Mannerheim upiformis Mannerheim, 1843, Bull. Soc. Nat. Moscou, 16:304. laticeps LeConte, 1850, in: Agassiz, Lake Superior, 233. collaris Casey, 1912, Mem. Coleopt., 3:218, n. syn. rohustula Casey, 1912, Mem. Coleopt., 3:219, n. syn. suhpuhescens Casey, 1912, Mem. Coleopt., 3 :219, n. syn. hasalis Casey, 1912, Mem. Coleopt., 3:220, n. syn. parva Casey, 1924, Mem. Coleopt., 11:226, n. syn. 106 THE PAN-PACIFIC ENTOMOLOGIST [yoL. XIV. NO. 3 This common western species is extremely variable in size, shape, an,d punctation, but in so far as is known to the writer none of these variations exhibit any geographical or ecological segregation. Almost any spring flight where the species is com- mon will reveal all of the forms described by Casey and many more which were unknown to him. OSMIDUS GUTTATUS LeConte guttatus LeConte, 1873, Smithson. Misc. Coll., XI, Art. 264, p. 178. ohscurella Casey, 1924, Mem. Coleopt., 11:255, n. syn. vestitus Casey, 1924, Mem. Coleopt., 11:255, n. syn. 0. ohscurella and 0. vestitus Casey are female and male respectively of Osmidus guttatus LeConte. Brothylus gemmulatus LeConte gemmulatus LeConte, 1859, Proc. Acad. Nat. Sci. Phila., 1859:80. consors Casey, 1924, Mem. Coleopt., 11:254, n. syn. longicollis Casey, 1924, Mem. Coleopt., 11:254, n. syn. Brothylus castaneus Casey was not examined but B. consors and B. longicollis both represent B. gemmulatus LeConte. Ap- parently Col. Casey was misled by the sexual dimorphism ex- hibited by the latter species. Although the female has a prominent lateral pronotal tubercle this is completely lacking in the male, as in both sexes of Brothylus cons per sus LeConte. Callimellum ruficolle LeConte ruficolle LeConte, 1873, Smithson. Misc. Coll., XI, Art. 264, p. 192. (Pilema.) longicollis Casey, 1912, Mem. Coleopt., 3:310 (Callimus) , n. syn. C. longicollis Casey is conspecific with ruficolle LeConte. C. opacipennis, although agreeing structurally with ruficolle, has nearly black elytra. It is a form common in southern California and possibly represents a geographic race of the LeConte species. Callimellum cyanipenne LeConte cyanipenne LeConte, 1873, Smithson. Misc. Coll. XI, Art 264, p. 192, {Pilema). JULY, 1938] LINSLEY— CERAMBYCID^ 107 variipes Casey, 1912, Mem. Coleopt., 3:311 {Callimus), n. syn. dehiscens Casey, 1912, Mem. Coleopt., 3:312 {Callimus) , n. syn. Casey had a very small series of his species of Callimellum, three of which were based upon uniques. The shape of the elytral apices is extremely variable in this species and forms an unre- liable specific character. The series of specimens in the Blaisdell collection (from Mokelumne Hill, Calif.) from which Col. Casey received his unique type of variipes exhibits both of the varia- tions to which the latter author gave specific names. PoECILOBRIUM CHALYBEUM LeConte chalybeum LeConte, 1873, Smithson. Misc. Coll. XI, Art. 264, p. 189, {Callimus) . rugosipenne Linell, 1896, Proc. U. S. National Museum, 19: 395, n. syn. minutum Casey, 1924, Mem. Coleopt., 11:261, n. syn. gibsoni Hopping, 1931, Can. Ent., 53:234, n. syn. This species is extremely variable in size, color, and puncta- tion, and none of these characters show any geographical or ecological correlation in the series at hand. The elytral punc- tures vary from confluent or adjoining to from five to six punc- ture widths apart and from shallow and feeble to deep and distinct, in specimens beaten from the same branches. The ante- rior femora may be either red or black in the female but are black in all of the males examined. The species is not uncommon and has been collected on Ceanothus, Rhus, Quercus, Acer, and Prunus. Two hundred and thirty-eight specimens are before me ranging from southern California to British Columbia and Idaho. Genus Strang ALIA Serville Strangalia Serville, 1835, Ann. Soc. Ent. France, 4:220. Lacordaire, 1869, Genera Coleopt., 9:328. Thompson, 1864, Systema Ceramb., 144. LeConte, 1873, Smithson. Misc. Coll., XI, Art. 265:328. LeConte and Horn, 1883, Smithson. Misc. Coll., XXVI, Art. 507, p. 313. Leng, 1890, Ent. Amer., 6:157. 108 THE PAN-PACIFIC ENTOMOLOGIST [yoL. XIV. NO. 3 Strangalina Aurivillius, 1912, Coleopt. Catal., 39:228. Boppe, 1921, Genera Ins., Fasc. 178:24, 102. Swaine and Hopping, 1928, Nat. Mus. Can., Bull. 52:16. Hopping, 1937, Nat. Mus. Can., Bull. 85:23. Ophistomis, Casey, 1913, Mem. Coleopt. 4:248, 275. Serville included in his genus Strangalia only two species, Leptura luteicornis Fabricius and Leptura calcarata Fabricius. Thomson (1864, Systema Ceramb., 141) designated the first of these as the genotype, and the genus was thus understood by Lacordaire, LeConte, Horn, Leng, and other early writers. The selections of Leptura elongata DeCeer by Westwood (1840, Intro. Mod. Class. Ins., append., 1:41) and L. rubra Linnaeus by Des- Gozis (1886, L’Espece Typique, 33) as genotypes are both invalid since neither species was included originally by Serville. The designation of Leptura attenuata Linnaeus as the type of Stran- galina Aurivellius (Swaine and Hopping, 1928:13) makes it a synonym of Strangalia, since luteicornis Fab. and attenuata Linn, are at present considered congeneric. Genus Anthophylax LeConte Anthophylax LeConte, 1850, Jour. Acad. Nat. Sci. Phila., (2) 1:326. Thomson, 1860, Class. Ceramb., 156. Lacordaire, 1869, Genera Coleopt., 8:443. LeConte, 1873, Smithson. Misc. Coll., XI, Art. 265:328. LeConte and Horn, 1883, Smithson. Misc. Coll., XXVI, Art. 507, p. 313. Leng, 1890, Ent. Amer., 6:65. Boppe, 1922, Genera Ins., 178:21, 67. Anthophilax LeConte, 1850, in: Agassiz, Lake Superior, 236. Swaine and Hopping, 1928, Nat. Mus. Can., Bull. 52:14. Hopping, 1937, Nat. Mus. Can., Bull. 85:14. Genotype: Anthophylax viridis LeConte (Thomson, 1864: 141). The original spelling of this generic name was Anthophylax and the original citation should be that given above. On the statement of LeConte (1851, Jour. Acad. Nat. Sci. Phila., (2) 2:100) the original citations for the following Lepturini should JULY, 1938] LINSLE Y— CER AMB YCID^ 109 be to his paper in the Jour. Acad. Nat. Sci. Phila., 1850, rather than to Agassiz, Lake Superior, which appeared later: Argaleus n. gen. (319), A. nitens n. sp. 319), Evodinus n. gen. (325), Acmceops n. gen. (321), Anthophylax n. gen. (326), A. viridis n. sp. (326), Leptura tibialis n. sp. (339). Genus Acm^ops LeConte This genus was made masculine by its author, not feminine as employed by recent workers. Genus Pachyta Zetterstedt Pachyta Zetterstedt, 1828, Fauna Insecta Lapponica, 1:376. Genotype: Leptura 4-^o,(^ulata Linn. (Thomson, 1864). This genus should be attributed to Zetterstedt, not Dejean. The first valid genotype designation known to the writer is that of Thomson. The selection of Leptura 8-maculata Fabricius by West- wood (1840) is invalid as the species was not among those orig- inally included by Zetterstedt. Genus Toxotus Zetterstedt Toxotus Zetterstedt, 1828, Fauna Insecta Lapponica, 1:374. Genotype: Cerambyx meridianus Linn. (Westwood, 1840). This genus should likewise be attributed to Zetterstedt. Zetter- stedt included two species, Cerambyx cursor Linnaeus and C. meridianus Linnaeus. The selection of the former as the. geno- type by Thomson (1864) is invalid because of the earlier desig- nation by Westwood. Phymatodes lecontei Linsley, new name Callidium obscurum LeConte, 1859 (nee Callidium obscurum Fabricius, 1787). ? Phymatodes grandis Casey, 1912, Mem. Coleopt., 3:277. LeConte’s name for our common Phymatodes is pre-occupied. Casey’s P. grandis may eventually prove to be the same as Le- Conte’s obscurum and, if so, will take precedence over the name proposed above. Genus Cyllene Newman The author of this genus made it feminine, not masculine as employed, at least in part, by recent writers. 110 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO, 3 A NEW SPECIES OF DONACIA FROM WASHINGTON BY MELVILLE H. HATCH University of Washington Donacia (Plateumaris) idola Hatch, n. sp. Length: Male 7.0-7.5 mm,; female 7.5-8.5 mm. Color metallic seneous, viridescent, or purpurescent; the head, antennae, and ven- tral surface densely opaquely punctate; the tibiae, the tarsi, the bases of the femora and the basal portions of antennal segments II to VII or VIII variably, and at times very obscurely, tinged with rufous. Head with short tempora behind the eyes, thence strongly constricted to form a “neck.” Antennal segments IV to XI somewhat as in pusilla Say, not elongate as in longicollis Schaeffer, Antennae extending about four segments beyond the base of the pronotum, a little longer in the male. Pronotum as long as wide, the anterior angles prominent, the lateral tubercle prominent and distinctly separated from the disc of the pro- notum by an arcuate impression, the surface shining, finely punc- tate and rugose especially along the median line, which is strongly impressed from about the apical fifth or less to a punctiform impression at the basal fourth, behind which it is continued as a Carina. Extending posterio-obliquely laterad from the puncti- form impression at the basal fourth of the median line is a deeply impressed transverse line, behind which the surface of the pro- notum is somewhat smoother and more shining. Elytra shining; ante-median impression distinct; serial punctures moderate, finer towards apex, the intervals transversely rugose and finely sparsely but somewhat variably punctate. The side pieces of the pro- sternum coarsely strigate, somewhat more finely so anteriorly ; the rest of the ventral surface and legs set with cinereous short pubescence; posteriori femora extending to the apex of the third ventral segment, moderately clavate, narrower at base than at apex, set with a moderate sized tooth on its lower surf ace towards the apex. Abdomen with first ventral segment evidently but vaguely impressed at middle in male or very vaguely impressed in female; the last ventral segment impressed at middle of apex in male or unmodified in female; the last dorsal segment trun- cately bisinuate in male or obtusely rounded in female; the lower vaginal plate in the female acutely triangularly produced, the sides finely serrulate. Type male, allotype female, and 5 paratypes: Chase Lake, Snohomish Co., Wash., May 9, 1934, M. H. Hatch; 45 paratypes, same locality as type but on various dates: May 14, 1930; April 27, 1931; April 26, 1933; May 9, 1934; April, 1936; April 29, 1936; April 26, 1938. The type and allotype are aeneo-pur- JULY, 1938] HATCH— A NEW DONACIA 111 purescent in color. Type material in collection of author with two paratypes in collection of Mr. Albert R. Mead. This species may be distinguished from most of the other Nearctic species of its subgenus by the deeply impressed trans- verse basal pronotal impression with a short median longi- tudinal Carina just behind it. By careful attention to the extremely obscure rufous clouding at the base of the meta- femora, I run this species in Schaeffer’s key (Brooklyn Mus. Sci. Bull., Ill, 1925, pp. 123-125, 152-154) to dubia Schaeffer, from which, in addition to the characters above cited, it may apparently be distinguished by the darker antennas and legs, the somewhat more evidently punctate pronotum and the well developed tooth on the metafemora. The posterior margin of the last dorsal abdominal segment in the male is bisinuate, whereas Schaeffer (l.c., p. 153) describes the condition in. dubia as “truncate.” Among the other species of this subgenus in which Schaeffer describes this condition, always or at times, as “truncate” in the male {sulcicollis, flavipes, notmani, metallica, wallisi, dubia, neomexicana and longicollis) . I find that flavipes and metallica exhibit, at least at times, the same sort of a bisi- nuation of the last dorsal abdominal segment that I detect in idola, so that the complete accuracy of Schaeffer’s descriptions in this particular cannot be relied upon. This feature will serve, however, to distinguish idola from longicollis, in which in my specimens the last dorsal segment in the male is really feebly emarginate. Chase Lake is a small bog lake located about the center of Section 30, Township 27 North, Range 4 East, in Snohomish County, Washington, about two miles southeast of Edmonds and «r about seven miles north of the northern city limits of Seattle. It is the unnamed body of water that is mapped in this location on the 1/125,000 scale Seattle sheet of the United States Geo- logical Survey topographic map. The lake is bordered by a wide zone of red sphagnum which serves as the habitat of one species of fly {Chrysogaster nigrivittata Loew*, family Syrphidce) , and three species of beetles in three different fam- ilies, all with the same bright metallic bodies more or less matching the color of the sphagnum. The three beetles all proved to be undescribed species. The first, a carabid, Platynus ♦Determined by Mr. Randall Latta. 112 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 helleri, was described by me in the Pan-Pacific Entomologist in 1933 (Vol. IX, pp. 120-121). The second, a species of Eanus of the family Elateridae, isi being described in the same journal by my friend, Mr. M. C. Lane. The third, a chrysomelid, is described above. Two of these species, the Platynus and the Eanus, have been taken on a similar sphagnum mat of a much larger lake. Lake Marie, about two miles east of Fall City in King County, Washington, and the Platynus has been recorded from sphagnum at Steelhead, near Mission City, in extreme southwestern British Columbia (Leech, Pan-Pac. Ent. XI, 1935, p. 122). While the modem biologist is much more cautious about “explaining” such a phenomenon than his nineteenth century predecessor, the correlation between the color of the insects and the color of the sphagnum is not, in all probability, a pure coincidence. While each of the three beetles is not without metallic allies — this is especially true of Donacia, where a great many of the species are metallic — this simply means that stocks with such color potentialities were available for this particular evolution. The fact that each of the three beetles in three fam- ilies is a peculiar species shows that the red sphagnum metallic beetle association is long established. There is probably a casual relationship involved, though its exact nature is quite beyond us at present. A Method of Collecting Amphizoa Along Swamp Creek, a small stream six to thirty feet in width in the level country just north of Seattle, Washington, specimens of Amphizoa striata Van Dyke were taken by partially submerging and securing in place pitted water soaked cedar logs in shaded portions of the creek where the stream was narrow and the current was swift. The beetles were found in the cracka and crevices on the underside of the logs. Collections were made at intervals of a week or ten days in June and July of 1937 and close to a hundred specimens were secured. — Daniel E. Bonnell and Joseph Bruzas, Department of Zoology, University of Wash- ington. JULY, 1938] MEAD— DONACIA 113 NEW SUBSPECIES AND NOTES ON DONACIA WITH KEY TO THE SPECIES OF THE PACIFIC STATES (Coleoptera, Chrysomelidae) BY ALBERT R. MEAD University of California, Berkeley, California Donacia subtilis magistrigata Mead, new subspecies Strongly dorso-ventrally flattened, subparallel, elongate, shining cupreous; antennae, head, and legs concolorous and pubescent. Male. Head slightly constricted behind eyes, finely punctate with a deep median sulcus ; eyes large and only moderately promi- nent; antennae extending to basal one-third of elytra. Pronotum at apex about as wide as long, converging to posterior angles which are feeble; anterior angles distinct but not prominent; lateral tubercles depressed and indistinct; disc densely and coarsely punc- tate-rugose. Elytra heavily strigate, the strigae becoming more dense toward apices which are truncate; a limited smooth area approximate to scutellum ; punctuation rather coarse becoming finer at apices; anterior impressions feeble, posterior impressions faint; coarse transverse rugae sparse, but fairly abundant in region of anterior impressions. Venter finely punctate with pubescence white and moderately dense; prosternal epistema with anterio- dorsal area pubescent, posterior portion glabrous and coarsely strigate. Metathoracic femur reaching to apex of third sternite; moderately clavate with a small acute tooth. Last abdominal ter- gite truncate; last sternite with an apical depression. Length 8.5 mm., breadth 3.0 mm. Female. Larger and stouter than the male; antennae slightly shorter and stouter. Last abdominal tergite feebly emarginate; last sternite sub-angulate at apex. Length 11.0 mm., breadth 3.5 mm. Holotype, male (No. 4689 Cal. Acad. Sci.), allotype, female (No. 4690 Cal. Acad. Sci.) , and two paratypes collected at Clarks- burg, Yolo County, California. The holotype and the two para- types were collected by A. T. McClay on June 4, 1931 ; the allo- type was collected by Mont A. Cazier on July 26, 1933; seven other paratypes were collected at Tejon Canyon (Kem Co.), Sebastopol (Sonoma Co.), Davis (Yolo Co.), Alturas (Modoc Co.), and Lakeport (Lake Co.) , California. Four paratypes are de- posited in the collection of the author, three in the collection of 114 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 A. T. McClay, and one paratype each in the collections of L. J. Muchmore (Los Angeles Museum), and B. E. White. Donacia suhtilis magistrigata might he confused with distincta LeConte or distincta occidentalis, the species described below, because of the densely strigate elytra, but can be distinguished in that the head is only slightly narrowed behind the eyes, the median line of the pronotum is usually absent, and there are transverse rugae on the elytral disc. This subspecies can readily be distinguished from the typical suhtilis Kunze by the fine and dense strigate-rugose sculpturing on the elytra, by the meta- thoracic femora which are less clavate; and by the antennae which are stouter. The last abdominal tergite of the female is feebly emarginate while that of suhtilis is broadly rounded. Charles Schaeffer reports in his revision^ that H. F. Wickham collected suhtilis as far west as Greeley, Colorado, and S. Beller and M. H. Hatch reporC that it has been found in Seattle, Wash- ington; but they do not list it for Oregon®. This is undoubtedly the first record for California. Mr. Hatch sent to the writer the three specimens of suhtilis which were collected in Seattle, Wash- ington; but on examination only one, a male, showed an affinity toward the new subspecies. The distinguishing characters were intermediate in this specimen and therefore not typical. Thus magistrigata seems to be limited to California. Donacia distincta occidentalis Mead, new subspecies Feebly depressed, elongate, dull metallic cupreous, antennae black, legs concolorous; head, antennae, legs, and venter punc- tate, pubescent. Male. Head small, rather strongly constricted behind eyes; punctuation moderately dense becoming finer and more dense poste- riorly; eyes small and prominent; median sulcus narrow and deep; antennae about half the length of the body. Pronotum a little wider at apex than long, converging slightly to a well defined posterior marginal carina which is produced laterally to form the feeble posterior angles; anterior angles oblique and only slightly distinct; lateral tubercles well defined and separated from the disc by a moderately deep arcuate groove; lateral margin sinuate posterior to tubercle; median line distinct; punctuation coarse and sparse 1 Bkln. Mus. Sci. Bull., Ill, 1926, pg. 106, ^ Univ. Wash. Publ. Biol., I, 1932, pg. 82. ^ Pan-Pac. Ent., VIII, 1932, pp. 102-108. JULY, 1938] MEAD— DONACIA 115 with few intermittent fine punctures; disc comparatively smooth becoming' densely rugose laterally; tubercles rugose. Elytra elon- gate; apices truncate; surface very finely and evenly strigate be- coming uniformly more dense at apices ; a small area in the baso- sutural region smooth and shining; punctuation moderately fine becoming finer at apices; anterior impressions distinct, arcuately produced anteriorly to humeri; posterior impressions equally dis- tinct, produced posteriorly, two intervals wide, almost to apices. Venter finely and densely punctulate; pubescence fine and moder- ately dense; only anterio-dorsal one-fourth of prosternal epister- num pubescent, remaining portion glabrous and coarsely strigate. Metathoracic femur reaching to apex of third sternite; clavate, with a small and obscure tooth. Last abdominal tergite broadly emarginate; last sternite apically depressed. Length 7.5 mm., breadth 2.5 mm. Female. Larger and stouter than male; pronotum slightly wider; antenns shorter and stouter. Last abdominal tergite nar- rowly emarginate; last sternite broadly rounded. Length 9.0 mm., breadth 3.5 mm. Holotype, male (No. 4691, Cal. Acad. Sci.), allotype, female (No. 4692, Cal. Acad. Sci.), and eight paratypes all collected by A. T. McClay in Luther’s Pass, near Meyers, El Dorado Co., Cali- fornia, on June 15, 1930. Five paratypes (4^, 1$) are in the collection of A, T. McClay and three {2S , 1 $ ) have been de- posited in the author’s collection. Two other specimens are at hand one of which was collected at Pothole meadows, Yosemite, California, on June 2, 1932, and the other at Facht, Lassen County, California, on June 5, 1921; but these are not typical as will be pointed out later. Donacia distincta occidentalis can be distinguished from sub- tilis magistrigata Mead and allied to distincta LeConte by the following characters: the head is smaller and more strongly con- stricted behind the eyes, the eyes are smaller, the median line of the pronotum is always present, the prothorax is wider, the strigate sculpturing of the elytra is much finer, and transverse rugae on the elytral discs are absent. This subspecies, however, differs from the typical distincta in that it is smaller, more slen- der, and more convex; the antennae are shorter and stouter; the eyes are less prominent; the metathoracic femur is only slightly clavate and has a small and obscure tooth whereas that of dis- tincta is more strongly clavate with a moderately large and acute tooth; and the apical third of the elytra as seen from a lateral 116 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 3 view is not depressed as in distincta but curved ventra,d as in tuhercidifrons SchfFr. Typical distincta has not been reported west of Edmonton, Alberta*, but there is a single specimen in the author’s collection from Cranbrook, B. C., which with the two atypical specimens previously mentioned make a series that connects the typical distincta of the Great Lakes Region with the subspecies occi- dentalis in California. This series shows a degree of variation between each specimen which is almost correlated with the distri- bution. This is particularly noticeable in the size and shape of the insect, the type of pronotum, and in the armature of the metathoracic femur. The specimen collected in Yosemite is more depressed as in distincta but the size and pronotum are similar to occidentalis, whereas the armature of the femora is exactly inter- mediate, However, the specimen collected at Facht is more nearly like occidentalis in that the only atypical structure is the prono- tum which is more nearly like distincta. The type series of ten shows a remarkable constancy in all structures especially in the presence of the definite basal carina of the pronotum and the obscure tooth of the metathoracic femur. A larger series of these two atypical forms may prove this subspecies to be more variable than the type series indicates. DoNACIA E MARGIN at a PACIFICA Schffr. Schaeffer described, in his revision, a subspecies of emarg- nata from California which he called pad flea, and according to the localities cited in this revision, this subspecies is limited to California. He observed specimens from Oregon and Washing- ton ; but these were identified as true emarginata. It is the opin- ion of the writer that Schaeffer had access to a too limited amount of California material and described this subspecies on the dif- ferences present in the series which he had, which differences be- come less significant as a larger series is examined. The dis- tinguishing characters that he used arei so variable that at most this can only be considered a phase of emarginata and should not have any taxonomic standing. It is for this reason that pacifica has not been included in the key. * Bkln. Mus. Sci. Bull., Ill, 1926, pg, 103. JULY, 1938] MEAD— DONACIA 117 Donacia germari flavipennis Mannerheim On October 15, 1934, J. T. Howell and L. S. Rose collected a large series of germari between Siltcoos Lake and Florence Lake in Lane County, Oregon, This series, which has been deposited in the collection of the California Academy of Sciences, shows all gradations from the typical metallic germari to the entirely fla- vous form. According to Schaeffer, LeConte had two specimens of typical germari and two of flavipennis which were presented to him by Mannerheim, all four of which were collected in the same place, viz,, Sitka, Alaska, It seems quite obvious on the basis of this evidence that flavipennis can no longer stand as a valid subspecies and must be considered as a color phase which is found in north-western populations of germari. To be sure, Schaeffer restored flavipennis as a “Western color variety of germari” ; but he used the term “variety” for all subspecies which he described and it does not seem reasonable to believe that he intended any exception here. Further, it is listed in Leng’s cata- logue as a subspecies and should thus be corrected, Flavous forms appear frequently in a number of species of Donacia, s, str., for example hirticollis, piscatrix, palmata, cincticornis, etc., and it does not necessarily follow that merely because fla- vous forms are found in no other species of Plateumaris, that this particular one should receive subspecific standing, Donacia fulvipes Lacordaire It is quite difi&cult to distinguish fulvipes from wallisi Schffr. if only one of the species is at hand; but an examination of a large series of these two confusing species has shown that the metathoracic femur of fulvipes is like that of pusilla in shape and is definitely bicolored whereas the metathoracic femur of wallisi is more nearly like that of germari since it is almost as wide at the base as at apex, and is entirely rufous. The antennae of wallisi are bicolored and distinctly annulate while those of fulvipes are entirely metallic except for the outer three to five segments which are rufous. There is also considerable difference in the shape of the upper and lower vaginal plates and the last abdominal tergite in the females of the two species as illustrated in the accompanying figures. 118 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 Figure 1, fulvipes; figure 2, wallisi. Key to the species of Donacia of the Pacific S' ATES 1. Sutural bead of elytra approximate to sutural margin through- out entire length subg. Donacia 2 Sutural bead and sutural margin of elytra divergent at apical sixth subg. Plateiumaris 9 2. Entire dorsum pubescent, elytral epiplura not limited dorsally by an elevated ridge pubescens Lee. -. Elytra glabrous, epiplura limited dorsally by a distinct ele- vated ridge 3 3. Pronotum finely pubescent ..hirticollis Kirby Pronotum glabrous 4 4. Metathoracic femora extending to elytral apices, pronotal punctuation fine and sparse 5 Metathoracic femora never extending to elytral apices, pro- notal punctuation coarse 6 5. Dorsum metallic blue, strial punctuation moderately coarse, punctures often greenish, median basal triangulate excava- tion usually indistinct proximo, Kirby -. Dorsum metallic green and/or cupreous, strial punctuation coarse, basal triangulate excavation deep proximo calif ornica Lee. 6. Elytra with transverse rugae, median line of pronotum usually absent, head only slightly constricted; behind eyes, eyes large and moderately prominent 7 Elytra without transverse rugae, median line of pronotum always present, head strongly constricted behind eyes, eyes small and prominent 8 7. Abundant coarse transverse rugae on elytra, antennae slender, metathoracic femora clavate subtilis Kunze -. Fine and dense strigate-rugous sculpturing on elytra, coarse transverse rugae sparse, antennae stouter, metathoracic femora less clavate subtilis magistrigata Mead JULY, 1938] MEAD— DONACIA 119 8. Metathoracic femur clavate with a moderately large and acute tooth, apical third of elytra depressed .....distincta Lee. Metathoracic femur less clavate with a very small obscure tooth, apical third of elytra curved ventrad distincta occidentalis Mead 9. Metathoracic femora entirely metallic, last abdominal tergite deeply emarginate emarginata Kirby Metathoracic femora bicolored or entirely rufous; or if metallic, the last abdominal tergite truncate 10 10. Prosternal episterna coarsely strigate 11 — . Prosternal episterna punctate rugose or at most only pos- terior half finely strigate 13 11. Prothorax longer than wide, usually much more so, median line usually present, rarely a sulcus, prothoracic tubercles elongate, metathoracic femora distinctly bicolored longicollis Schffr. — . Prothorax subquadrate with a deep median sulcus, pro- thoracic tubercles not elongate, metathoracic femora largely metallic with the small rufous area at base often faint 12 12. Antennas metallic, pronotal sub-basal transverse impression deep, median line produced as a carina posterior to the trans- verse impression, metathoracic femora clavate idola Hatch — . Antennas bicolored, pronotal sub-basal transverse impression distinct but not deep, sub-basal carina absent, metathoracic femora incrassate dubia Schffr. 13. Second and third segments of antennae small equal or sub- equal, pronotum densely and coarsely punctate, metathoracic femur smaller at base than at apex pusilla pyritosa Lee. — . Third antennal segment a third longer than second and equal or subequal to fourth, pronotum alutaceous and usually finely punctate, metathoracic femur as wide or wider at base than at apex germari Mann. Following is a list of the species of Donacia found in each of the three Pacific states: California: hirticollis, puhescens, proxima calif ornica, sub- tilis magistrigata, distincta occidentalis, emarginata, ger- mari, pusilla pyritosa, longicollis. Oregon: hirticollis, puhescens, proxima californica, emargi- nata, germari, pusilla pyritosa, longicollis. 120 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 Washington: hirticollis, pubescens, proxima, proxima cali- fornica, subtilis, emarginata, germari, pusilla pyritosa, longicollis, dubia, idola. The writer wishes to extend most sincere thanks to E. C. Van Dyke for his untiring efforts to assist in the preparation of this paper, to C. A. Frost and M. H. Hatch who so willingly loaned specimens upon request, and to A. T. McClay who so generously supplied the greater share of the type material. The Charles W. Leng collection of Chrysomelidae, purchased by the writer in 1936, formed the basis for this paper. Note on the Blattariae or Cockroaches of Western Washington The only species native to western Washington appears to be CrypiocerciLS punctiilatm Scudder, which Hebard (Mem. Amer. Ent. Soc. No. 2, 1917, p. 258) records from Chehalis. I have seen no specimens from the state, but have taken a nice series under bark of logs in Oregon Caves National Monument in southwestern Oregon. Three introduced species occur: Blatella germanica L. (the common cockroach or croton bug) common in the biological laboratory building at the University of Washington in Seattle and elsewhere, Periplaneta americana L. (the American cock- roach) occasionally taken in hotel basements and in restaurants in Seattle, and Blatta orientalis L. (the oriental, black, or Asiatic cockroach) recently taken in an apartment in Kent. Finally, there are two adventitious species occasionally re- ported from bananas in Seattle: Panchlora cubensis Scudder* (the green Cuban roach) and Nyctibora noctivaga Rhen (the great brown roach) . All but the last of these species can be recognized on the basis of the material given in Essig’s Insects of Western North America 1926, pp. 103-106, and all are described in Blatchley’s Orthoptera of north-eastern America 1920 pp. 59-114. — Melville H. Hatch, University of Washington. ♦Hebard, ibid p. 270, records this species from Bremerton. JULY, 1938] TING— PANS COPUS 121 A NEW SPECIES OF PANSCOPUS IN THE SUBGENUS NOCHELES ( Coleoptera : CurculionidsB ) BY PETER C. TING State Department of Agriculture, San Francisco, California The structural characteristics of the subgenus Nocheles are clearly stated by Mr. L. L. Buchanan in his recent monograph^ of the genus Panscopus. The writer is further indebted to Mr. Buchanan who very generously examined specimens of the new species herein described, and sent me comparative notes and illustrations of the unique male type of Panscopus {Nocheles) squamosus Pierce; also for arranging a loan from the United States National Museum of a male and female of the variety dentipes Pierce one of which was a gift to the California Academy of Sciences. Panscopus (Nocheles) michelbacheri Ting, new species Form of female rather robust; elytra less than two-sevenths longer than broad, the dorsum noticeably flattened, apex deflected forward anterior to base of declivity. Male elongate; elytra nearly twice longer than broad, dorsum slightly more convex than female, declivity abrupt but not vertical. Color of derm piceous to fusco- piceous; scales chiefly dark brown to dull black with a few irregu- larly placed golden brown ones. Length exclusive of head, female 7.5 mm. to 9 mm., male 7 mm. to 8 mm.; width, female 4 mm. to 5 mm., male 3 mm. to 3.5 mm. Rostrum one-fifth shorter than prothorax. Upper surface con- tinuous with front in profile; above rugulose and closely punctate; covered, except for extreme apex, with slightly curled or raised scales from two to three times longer than broad; nasal plate not sharply defined; median carina distinct extending from base to apex of the v-shaped ridge just behind nasal plate; sides of ros- trum deeply punctate, not rugulose as in dentipes,] each puncture bearing a slender scale; rostrum beneath with slender scales; tentorial pits very prominent. Antennal scape reaching slightly beyond hind margin of eyes and densely covered with bristle-like setae; funicular segments more sparsely covered with finer setae, first four segments longer than broad, the last three moniliform; club generally more elongate in male than in female. Head above with closely-spaced punctures bearing elongate scales ; beneath ^ The Genus Panscopus Schoenherr, L. L. Buchanan, Smithsonian Miscellaneous Collections, vol. 94, no. 16, 1936. 122 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 and at sides behind eyes distinctly strigulated. Prothorax wider than long (3:2.4), sides nearly evenly rounded in female, in the male widest in apical half with the sides more gradually nar- rowed to base; pronotum with slender scales four to five times longer than broad, placed in large, slightly raised, smooth-rimmed punctures and with a greater number of shorter scales, twice longer thaii broad, placed in the slightly depressed spaces between the rims of the punctures; median sulcus very shallow, hardly visible; sides somewhat rugulose with broad punctures bearing short scales. Elytra with serial punctures separated by about their own diameter each puncture bearing an elongate scale three to four times longer than broad; intervals flat or nearly so in male; sides of elytra of female converging very gradually until the apical fourth is similar to that of torpidus, not evenly rounded as in female of dentipes'; primary vestiture consisting of closely placed, overlapping scales twice longer than broad, slightly sparser and more erect on male than on female; thei first seven or eight inter- vals bear two or three rows of irregularly placed, reclinate scales five or six times longer than broad; the last intervals bear very few of these slightly raised, slender scales except near their apices. Legs with femora densely covered with elongate scales, except for posterior face of middle and hind pairs; all tibiae faintly denticu- late and covered with both scales and setae, some of which on the ventral margin appear as yellow spines. Male with last visible abdominal sternite faintly depressed at median line; vestiture of male sternites primarily elongate scales with some typical setae on sternites III, IV, and V, and with setae only in median concavity of sternites I and II. Female with abdominal sternites densely covered with scales, the last visible sternite broadly and shallowly depressed in apical two-thirds. Male genitalia distinct from that of squamosus, dentipes and torpidus, with median lobe as shown in figure A ; internal sac with an isolated ventral patch of tooth- like spinules at base (fig. B) ; remaining spinules very much smaller and extending anteriorly rather evenly except for the extreme apex. There are no, spinules posterior to or at sides of the so-called basal patch. Female genitalia typical of the genus Panscopus. Type locality: Nevada City, Nevada County, California, 64 specimens collected under wood and other debris by Dr. A. E. Michelbacher and Mr. Mont A. Cazier on June 27, 1937. The writer also has examined a single male specimen collected by Mr. Roy Wagner at Challenge, Yuba County, California, on June 26, 1929. JULY, 1938] TING— PANSCOPUS, 123 Holotype male and allotype female (Nos. 4594 and 4595) in the entomological museum of the California Academy of Sci- ences, San Francisco. Paratypes are in the collections of the United States National Museum, Los Angeles Museum, Califor- nia Academy of Sciences, State Department of Agriculture, San Francisco, Dr. Edwin C. Van Dyke, Dr. A. E. Michelbacher, Mr. Mont A. Cazier, Mr. A. T. McClay, Mr. Roy Wagner, and in that of the author. P. michelbacheri is chiefly separated from the other known members of the subgenus by a much smoother pronotum and a fainter median sulcus — lacking the deep, irregular furrows, ridges, and prominent tubercles of the other forms — also by its greater size, general shape, and the form of the male genitalia. This new species resembles torpidus in the idouble type of pro- notal scales, but lacks the elevated, alternate, elytral intervals of the latter and is probably more closely related to squamosus. It seems appropriate to report that Mr. H. P. Lanchester has collected additional specimens of the small variety of squamosus discussed by Mr. Buchanan on page 9 of his previously men- tioned monograph. They were taken at Bone Springs in the Blue Mountains of Oregon on July 4, 1935. B Explanation of Figures Fig. A, Panscopus (Nocheles) michelbacheri new species, median lobe of male genitalia, dorsal and lateral views. Fig. B, same, ventral patch of tooth-like spinules at base of internal sac of median lobe. Fig. C, P. squamosus variety dentipes Pierce, median lobe, dorsal and lateral views. 124 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 NOTES ON CYSTEODEMUS IN SOUTHERN NEVADA (Coleoptera: Meloidae) BY IRA LA RIVERS University of North Carolina, Raleigh I had occasion, during the summer of 1937, to meet Cysteo- demus armatus several times in the field, and found many of her activities to be of interest. Strictly a desert animal, this rather large beetle is a familiar sight during the hot summer season, lumbering swiftly and erratically about the simmering desert floor, ever in search of food, which consisted of leaves and flowers of the prevalent desert annuals. So common is this insect (relatively speaking) in the wide, flat, hot valleys of the Lower Sonoran Zone in Southern Nevada, that I find it a convenient zoologic index to the flora and fauna peculiar to these situations; particularly well does its population climax in Southern Nevada coincide with that of the polemoniac Langloisia setosissima, which, in conjunction with Gilia ophthalmoides, G. leptomeria, and Glypto pleura setulosa, locally forms the bulk of its food during early summer. The familiar Covillea tridentata, in whose company Cysteo- demus armatus has so often been reported, extends northward, unaccompanied in the last reaches of its area by its distinctive little black canfrere. Southward, in the very tip of the state, the insect is intimately associated with Prosopis juliflora in the granite-derived and much dissected outwash plain leading down eastward from the Dead Mountains to the Rio Colorado. Here, it lives in the numerous wasihes, with their concentrated detrital sand and their characteristic floral association of Prosopis juli- flora, Cassia armata, Krameria canescens, and Parosela fre- monti, and bustles about actively, while the mid-day air tem- perature is 130 degrees and the sand simmers at 150. In such extreme temperatures, Cysteodemus armatus loves the shade of dense, rugged shrubs and perennials, and scurries from plant to plant in her excursions. I had no occasion to observe feeding habits in the Dead Mountains, but considerably farther northwest, in Pahrump Valley, splendid opportunities of the sort presented themselves. Here, in a large, level valley, bounded on the north and east JULY, 1938] LA RIVERS— CYSTODEMUS 125 by the magnificent Spring Mountains, whose Charleston Peak stands up against the sky as a biologic island of unique possi- bilities, and on the south and west by low, long ranges,! found an environment admirably suited to the desert beetle. Pahrump Valley itself is flat, unbroken save for a general swell near the northwest portion. A low fault line runs north- west-southeast in the center of the valley, with an approximate offset of one foot and hanging wall of fifteen feet. At Stump Springs, near the northwest end of this fault. Stump Creek, an irregularly periodic stream flowing in a southwest direction from the foothills of Spring Mountain twelve miles away, has cut back a moderate flat-bottomed gully through the two-foot hard- pan which caps the valley floor. Here, in the desert at the mouth of the gully, Cysteodemus armatus has found an ideal situation, and abounds in relatively large numbers, inseparably associated with Covillea tridentata, Prosopis juli flora, and the annuals pre- viously mentioned, as well as the ubiquitous Stanleya elata, Eriogonum inflatum, and many unidentified plants, as Oeno- thera, Eriogonum, Atriplex, Chenopodia, Asclepias, etc. Ahronia orhiculata and Nama demissa are abundant on the sand dunes bordering the gully, while Anemopsis calif ornica and Helio- tr opium xerophilum are profuse in moist situations about the small pool maintained by a constant, but small, spring at Stump Springs proper. In this widened area, as well as on the “mesa” about, the beetle can be found at almost any well-lighted, warm time of day. The bulk of individuals seen are females, but during June, at least, pairs in copulation are not uncommon. In foraging, some individuals hold a remarkably straight “course” between the creosote bushes, maintaining themselves at an average median distance from bordering shrubs with con- sistency; these jaunts may be for some distance, and are ulti- mately interrupted by much wandering in a relatively small area, this latter performance as remarkable for its haphazard in- definiteness as the former is for its conciseness. The reason for such wandering is not altogether clear. Occasionally, when male and female met, coition ensued, but more often, the dif- ferent sexes paid little attention to each other during these hap- hazard meetings, the male occasionally becoming momentarily excited. Since later observations seemed to show that the search 126 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 for food was not primarily responsible for such behavior, the answer is undoubtedly to be found in the egg-laying activities of the animal. In this area, Langloisia setosissima was abundant and seemed a favorite food. Any plant encountered “on the march” was almost invariably fed on. The manner of locating the plant was interesting, and seemed to be effected almost, if not entirely, by the sense of smell, except at the extremely short distances of one inch or less. On innumerable occasions I have seen a female bustle by a plant not more than four inches away, certainly not beyond the range of even mediocre vision, and be unaware of its existence. That these were not individuals already satiated was shown by the fact that they all encountered a Langloisia setosissima sooner or later, and fed upon it without hesitancy. I have in my field- book, data concerning a robust female who bustled “for two hun- dred feet along the Stump Springs hardpan, going in a straight line and avoiding all bushes, but stopping twice to feed on Langloisia setosissima, the last time passing the plant, then scenting it as she drew away down-wind, and returning directly to it, a distance of sixteen inches.” This was one of numerous instances. In feeding, the individual generally climbs upon the plant, and feeds on the choicest tidbits at her leisure; this is invariably the procedure with the higher Gilia leptomeria and G. ophthal- moides, which cannot be reached from the ground, but is also the general method followed in feeding over the low plants, as L. setosissima, in which all but the innermost portions are accessible from the ground. The act of feeding is of interest: from my fieldbook — “watched a- large female feed on leaves and dried flowers of L. setosissima. Bites were not clean-cut, but feeding consisted of macerating the tissues to a pulpy mass, then pulling them away from the main portion, sometimes in long threads which were laboriously swallowed. Twice she pulled the sharp-pointed bristles, which adorn the calyx tips and leaves, into her mouth, then rejected them. Once she apparently stuck herself, for she pushed the bristle out with her forelegs and pawed several times at her mouthparts. Defecation proceeded more-or-less continu- JULY, 1938] LA RIVERS— CYSTODEMUS 127 ously throughout the feeding. After eating three leaves and try- ing a dead flower, she left the plant, described a short, bustling circle, then returned to feed again. She finally left after a total feeding period of eleven minutes.” In copulation, the male rides complacently upon the back of the female, who carries him wherever she goes, even wandering high up in the slim and precarious stemsi of GUia ophthalmoides with her burden. When a pair are frightened, there is a gen- eral attempt at an exodus, but the male, though he tries, can seldom escape, and is dragged off by the more powerful female. Of the very interesting egg-laying activities, I saw little. In this same region, I came upon a female emerging from a burrow, which immediate excavation showed to be an inch and a half deep, struck obliquely into the ground at a 60 degree angle, and containing a ball of small, elongate, white eggs, the entire mass being 7 mm. in diameter. She had undoubtedly just terminated the long and laborious process of conceiving, nurturing, and depositing the clutch, for the mass was still moist to the touch, and pliable. On four occasions, before and after this, I observed females begin the process of digging a burrow, but watched only to see them desert a job not eVen well begun, and resume their incessant wandering. What digging they performed was done with mandibles and forelegs, the former loosening the flirt, the latter pushing it backwards beneath the abdomen. For some reason which I have not as yet discovered, but which must be of some moment to C. armata, select spots for egg deposition are not easily found, although I was not able to detect any distinct differences in soil texture, compactness, hardness, or location between the various abandoned sites and the burrow which I found, incidentally, beneath a gnarled Prosopis juliflora beside a gravel wash. As its numbers attest, C. armata is highly successful in its environment. The fact that it is a beetle, and thereby possessing a heavily chitinized coat, or at least, in remote times, an excel- lent foundation for such a coat, placed it one jump ahead of the game in its efforts to resist extreme dessication. Its wing- less condition, by forcing it into a restricted, ambulatorial “groove,” has enabled it to become a master competitor for 128 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 the favors of its surroundings because of its consequent ability to expend all its energies upon a single phase of its environ- ment, instead of many. Map showing: the distribution, as near as can be ascertained at present, of Cysteodemus armatus in Southern Nevada. The stippled, enclosed areas are mountain ranges within the region inhabited by the beetle, but upon which it does not occur, being strictly a lowland insect. An X marks the localities of excep- tional abundance of the species. The insect’s altitudinal varia- tion within the limits of this map are from (approximately) 500 ft. to 2500 ft. Neotropical Gyponin^ In the Annals of the Carnegie Museum, Vol. XXVII, pp. 11-52, 1938, Prof. Herbert Osborn has given us a most valuable paper on the Neotropical Gyponinae. In this he treats of 70 species which he places in nine genera, with a key to these genera and five plates, mostly of structural details. Of these 3 genera and 38 species are described as new. One correction seems to be called for. On page 12 he states that he finds no record of genus Proranus Spinola having been described. This genus was fully characterized by Spinola in his Tavola Sinottica, p. 122, 1850, with one species ghilianii Spinola from Para, which must be taken as the type of the genus. — E. P. Van Duzee. JULY, 1938] PRITCHARD— HODOPHYLAX 129 THE GENUS HODOPHYLAX JAMES, WITH A DESCRIPTION OF BASINGERI, NEW SPECIES {Diptera, Asilidce) * BY A. E. PRITCHARD The genus Hodophylax was proposed by James (1933) to include the single species aridus. James (1934) revised his diagnosis of the genus after having examined additional material. A second species of Hodophylax is described in this paper, and the geographical distribution of aridus is considerably extended. Hodophylax is closely related to Omninablautus Pritchard and Ahlautus Loew. Omninablautus and Ablautus differ from Hodophylax in being slender, having the mystax very dense and covering the entire face, and by having long, strong dorsocen- trals along the entire mesonotum and other bristles anteriorly. After James recognized the tibial spur to be characteristic of Hodophylax, he considered the relationships to be more with Parataractius Cole; the writer feels that the relation here is more distant and that the difference in antennal development is of more significance than the similarity in the reduction of the pulvilli and the presence of the tibial spur. The writer has a single specimen of an elongate species, representing an undescribed genus from Phoenix, Arizona (August), which has the pulvilli about one-fourth as long as the claws. This may represent an intermediate between Hodo- phylax and certain pulvillate genera, or, since the third antennal segments of this specimen are lacking, may be more closely related to Lestomyia Williston. Hodophylax aridus James 1933. Hodophylax aridus James, American Museum Novitates, no. 596:1-2. 1934. Hodophylax aridus James, Pan-Pacific Entomologist, 10:83- 84. James recorded the species from Colorado (August, Septem- ber) and Kansas (August) . The writer has additional material from Artesia, New Mexico, August 30, 1934 (A. E. Pritchard) , and Wilcox, Arizona, August 11, 1930 (T. F. Winbum and ♦Paper No. 1607 of the Scientific Journal Series of the Minnesota Agricul- tural Experiment Station. 130 THE PAN-PACIFIC ENTOMOLOGIST |^VOL XIV NO 3 R. H. Painter) . The tibiae externally and the tarsi for the most part are usually reddish like the femora. Hodophylax basingeri Pritchard, new species Body black; legs black except reddish femora; abdomen with caudo-lateral pollinose rectangles on segments two, three, and four. Length, 9 mm. Female. Head silvery white pollinose, with, hairs and bristles all white. Mystax on lower half of face, moderately dense on lower third. Ocellar tubercle with numerous hairs and bristles which do not get longer than the third antennal segment. Antennae with proximal two segments and base of third reddish, black beyond this. First antennal segment slightly shorter than sec- ond; second only with a strong bristle below; style about one- half as long as third antennal segment, its proximal division rela- tively short. Thoracic pleura densely white pollinose with brownish tinges, but with a wide, shining black stripe, devoid of pollen, from the wing base to the front coxa; coxas also shining black; propleura with dense, erect, long hairs. Mesonotum rather thinly whitish pollinose, with brown, geminate middorsal stripe, and brownish lateral stripes; rather thinly clothed with fine, white hairs which are directed posteriorly but not appressed, and long, white, lateral bristles; dorso-centrals, except posterior pair, hardly differentiated. Scutellum brownish pollinose, with a patch of about twelve marginal white bristles and hairs on either side. Abdomen above largely shining black, the posterior third of ter- gites I to IV each with a whitish pollinose stripe which is inter- rupted on median two-thirds of I, median third of II and III, and median half of IV ; laterally whitish pollinose on I to IV and part of V, although suffused with brown on proximal half of II, III, and IV. Legs shining black, the femora, however, reddish except at tip; clothed with white bristles and recumbent white hairs, the anterior tibial spur and bristles below tarsi all black; claws long, black; empodial bristle yellowish, less than one-fourth the length of the claws. Wings hyaline; veins yel- lowish; all marginal cells open. Holotype, female, Quail Spring, San Bernardino County, California, October 5, 1934 (A. J. Basinger), in the collection of Mr. A. J. Basinger for whom the species is named. Basingeri differs from aridus in having the antennal style about one-half as long as third antennal segment (about one- fourth length of third antennal segment in aridus) ; mystax over lower half of face (oral in aridus) ; propleura with densely erect, long hairs (with several bristles and marginal. JULY, 1938] PRITCHARD— HODOPHYLAX 131 recumbent hairs in aridus) ; mesonotal bristles much longer; mesonotal hairs fine and rather erect (heavy and appressed in aridus) ; dorsocentrals fine, little differentiated (short bristles in aridus) ; scutellar margin with a patch of bristles and hairs on either side (with two pairs of bristles in aridus) ; abdomen bare of pollen medially in the female (with anterior mesal spots in aridus) ; and the caudo-lateral spots less extensive. Bibliography 1933. James, Maurice T. New Asilidae from Colorado. American Museum Novitates, No. 596:1-2. 1934. James, Maurice T. Taxonomic Notes on Some Colorado Asilidae. Pan-Pacific Entomologist, 10:83-84. Hodophylax hasingeri, holotype female. 132 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 SYNOPSIS OF THE GENUS DALMANNIA IN NORTH AMERICA (DIPTERA, CONOPID^) BY GEORGE E. BOHART Berkeley, California Genus Dalmannia Robineau-Desvoidy Dalmannia Robineau-Desvoidy, 1830, Mem. Divers Savans Acad. Roy. Sci. Inst. France (Sci. Math., Phys.) 2:248. Stachynia Macquart, 1833, Mem. Soc. Roy. Sci. et Arts, Lille. Dalmannia is holarctic in distribution and is represented in North America by six known species. Of these vitiosa Coq. oc- curs thruout North America, nigriceps Loew is limited to the eastern part of the continent, and the others are restricted to North America west of the Rockies. The species are all rare and, because of their close association in flight and flower habits with solitary bees, are probably parasitic upon them. The genus was excellently diagnosed by Williston, 1883. The following characters will suffice for generic definition: Shining black species with bright yellow markings; antennae with a dis- tinctly dorsal arista; anal cell but little longer than the second basal. Comprehensive works on the North American species were undertaken by Williston, 1883, and by M. C. Van Duzee, 1927, in their revisional papers on the Conopidae. The present paper brings the synonymy up to date, describes one new species, briefly discusses the known species, and proposes a revised key. Dalmannia nigriceps Loew nigriceps hoew, 1866, Berl. Ent. Zeitsch., 10:40. This species is characterized by the very restricted yellow bands of the dorsum of the thorax and the uniformly pale pubes- cence of the dorsum except for the apical tergites. It was rede- scribed by Williston, 1883. The type locality is given by Williston as Virginia. Dr. Banks recorded it from Falls Church, Virginia, collected in June, and sent me specimens from Holliston, Mass., collected at the end of May. So far as known to me it has not been observed in the western United States. JULY, 1938] G. BOHART— DALMANNIA 133 Dalmannia picta Williston picta Williston, 1883, Trans. Conn. Acad., 6:94. This species has extremely short, uniformly pale hair and a tendency for strongly disjuncted bands on the abdominal tergites. The type locality cited by Williston is New Mexico. Addi- tional localities are: Mojave, Calif., April 10, 1936, (Bohart) where there were great numbers of Diandrena nesting and col- lecting pollen; Chiricahua Mountains, Cochise County, Arizona (V. W. Owen), Calif. Acad. Sci. Dalmannia vitiosa Coquillett vitiosa Coquillett, 1892, Ent. News., 3:150. Altho Coquillett in his original description, based on a single specimen, stated that the absence of the cross vein separating the discal and second submarginal cells might be an individual aber- ration, this character holds' in five other specimens which I have examined. This very remarkable species is small and dark with completely black thorax and unclouded wings. It has a wide geographical range, having been described from Los Angeles County, California, and collected later by Dr. Banks at Falls Church, and Chain Bridge, Virginia, in April. Addi- tional records are: Manhattan, Kansas, April and May (Curtis Sabrosky) ; Silverado Canyon, Orange County, California, Feb- ruary (R. M. Bohart) ; Santa Rosa, Sonoma County, California, March (R. C. Dixon). Dalmannia blaisdelli Cresson blaisdelli Cresson, 1919, Proc. Acad. Nat. Sci. Phil., 71:190. This, the largest and most boldly marked American species of the genus, has very short appressed golden pile on the dorsum of the thorax and heavily clouded wings. It was originally described from Mokelumne Hill, Calaveras County, California. Other California records are as follows: Mt. Hamilton, near San Jose, April, on flowers and foliage of Rhus (G. E. Bohart) ; Little Yosemite, elev. 6000 ft.. May; Indepen- ence, Inyo County, June (N. W. Frazier) ; Blue Lakes, Lake County, May (E. P. Van Duzee). The specimens which I have taken were collected in heavily wooded regions. 134 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 Dalmannia PACIFICA Banks pacifica Banks, 1916, Ann. Ent. Soc. Am., 9:199. hirsuta Van Duzee, 1927, Proc. Calif. Acad. Sci., 16:591. (n. syn.) This species is characterized by the hind and middle meta- tarsi of the female, which are greatly elongated and each bears along more than the half of its inner surface an elongate plate which seems to arise from the apex of the tibia and has flattened black bristles along the margin. In other species the homologous structures are small semicircular plates at the apices of the tibiae. It is further distinguishable in both sexes by the great extent of yellow on the abdomen. I have carefully compared the holotype of D. hirsuta V. D. with specimens of pacifica and find them to be the same, hirsuta being the female of pacifica. Described from Corvallis, Oregon, June. California records are: Berkeley, March to May (G. E. and R. M. Bohart) ; Davis, May (B. E. White). It occurs in open grassy fields. Dalmannia heterotricha G. Bohart, n. sp. Holotype female: Length, 7.5 mm.; black, with at least half of face and abdomen yellow; dorsum with very long erect pubescence. Head: First and second segments of tongue following palpi each approximately 1.8 mm. in length; head yellow except for black antennee, occiput, vertex, and median portion of frons; pile of frons pale and shorter than arista, that of vertex mostly black, directed forward and considerably longer than arista, that of lat- eral portion of occiput pale and approximately as long as second antennal segment. Thorax: Dorsum black except for humeri and apical half of scutellum which are yellow; pile of dorsum semi-erect altho di- rected posteriorly, nearly uniformly longer than second antennal segment and mostly slightly shorter than apical margin of the discal wing cell; pile of middle third of dorsum of thorax mostly black, that of fore and hind thirds mostly pale; hind and middle cox£e mostly black, front coxae mostly yellow; tibiae and femora yel- low except for brown proximal spots on fore femora and black apical ring on hind femora; tarsi and apical half of claws black; pulvilli and basal half of claws pale; pile of legs black, that along dorsal margins of femora mostly longer than arista ; metatarsi less than twice as long as length of their respective second tarsal seg- ments; apical plate-like processes of tibiae extending along less than the basal half of their respective metatarsi; wings lightly and uniformly grayish, subcostal cell very little broader at apex JULY, 1938] G. BOHART— DALMANNIA 135 than elsewhere, a distinct cross vein between discal and second basal cells. Abdomen: Dorsum black with apical third of second tergite, trilobed apical two-thirds of third and fourth tergites, apical tri- angular area of fifth tergite, and median spot of sixth tergite yellow; venter yellow; fifth and sixth sternites, and basal triangu- lar area terminating at apex of third sternite black; pile of first five tergites pale and medially shorter than second antennal seg- ment, laterally mostly as long as second antennal segment; pile of sixth tergite black; that of second sternite black and longer than second antennal segment. Holotype and one female paratype: Sand dunes on north side of Pt. Reyes Peninsula, Marin County, California, May 5, 1936, on flowers of Phacelia (G. E. Bohart), holotype in Calif. Acad. Sci., (No. 4688). Similar in hair length to pacifica Bks., but differing by hair characters as given in the key, smaller extent of yellow on the abdomen, and the normal hind and middle metatarsi. Key to the species of Dalmannia in North America 1. Scutellum and humeri wholly black; discal and second basal cells usually not separated by a cross vein, cross vein, if pres- ent, conspicuously weakened or broken anteriorly; subcostal cell at least twice as broad at apex as at narrowest point; small species, not more than 4 mm vitiosa -. Scutellum and humeri partly yellow; discal and second basal cells always separated by a cross vein; subcostal very little broader at apex than elsewhere ; larger species, at least 6 mm. 2 2. Pile of dorsum of thorax wholly pale, whitish; hairs of dorsum of thorax averaging shorter than length of arista or cross vein between discal and' second basal wing cells; wings com- pletely clear picta -. Pile of dorsum black, at least in the center 3 3. Pile of dorsum of thorax golden anteriorly and blackish poste- riorly, hair of both areas closely appressed and distinctly shorter than arista or cross vein between discal and second basal wing cells; hind femora black except for small apical ring of yellow; wings smoky. hlaisdelli -. No golden hair on thorax, pile of dorsum at least as long as arista or cross vein between discal and second basal cells, if not evidently so, hind femora mostly yellow. 4 4. Yellow of tergites produced forward laterally and in the mid- dle; hair of scutellum at least partly dark, or if not, at least twice as long as arista 5 136 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 -. Yellow of tergites produced forward only in the middle; hair of scutellum wholly pale ; wings smoky nigriceps 5. Black bands on tergites two to five inclusive broken by the forward production of yellow; pile of dorsum of abdomen with considerable amount of black on every segment; hair of vertex little, if any, longer than second antennal segment and very sparse ; hind tibia of female bearing an apical process extend- ing along more than half the length of the metatarsus which is long and arcuate pacifica Black bands on tergites continuous; pile of dorsum of ab- domen white except for black hairs on fifth tergite ; longer hair on vertex one-third to one-half longer than second antennal segment; pile generally very long and dense; hind tibia and metatarsus of female not as above heterotricha A SYNOPSIS OF THE GENUS EUPARAGIA {Hymenoptera, Vespidce, Eiiparagiince) BY RICHARD M. B CHART Berkeley, California The genus Euparagia Cresson is apparently limited in dis- tribution to portions of western North America. Its species are all extremely rare and are represented in few collections. The genus contains at present two species, macidiceps (Cameron) and scutellaris Cresson, the former recorded from Mexico and New Mexico, and the latter from California and Nevada. While examining a number of Vespidae collected by Mr. N. W. Frazier in the Lone Pine, Inyo County, region of Califor- nia, two male specimens of Euparagia were idiscovered which differed in several important characters from specimens of Euparagia scutellaris in the author’s collection. A subsequent examination of the types of scutellaris at the Academy of Natu- ral Sciences of Philadelphia, and the only known female of maculiceps at the United States National Museum, confirmed the opinion that the Lone Pine species was new. On account of the rarity and interesting habits of this genus, a synopsis of its species is given including the new one and additional records of the others. JULY, 1938] R. BOHART— EUPARAGIA 137 A discussion of the generic characters has been well pre- sented by Bradley in his “Taxonomy of the masarid wasps, in- cluding a monograph on the North American species,” Univ. Calif. Publ., Ent. I: 370-434, 1922, (12 figs, of Euparagia) . The combination of simple tarsal claws, three cubital cells in the forewing, elongate anal lobe of the hind wing, unplaited wings, sessile abdomen, simple 13-segmented male antennae which are without a terminal club, and the remarkable oxybelid-like facies will serve to distinguish the genus. It should be noted that the characters given by Bradley for the anterior femur of the male are not universal in the genus and therefore should be stricken out of the generic description. Key to the Species of Euparagia. 1. Vertex behind the ocelli with two prominent humps, parted by a sharp furrow, and with two weak humps near the inner margins of the compound eyes ; front and vertex, save for the smooth humps, coarsely, irregularly punctate; pronotum coarsely punctate maculiceps -. Vertex without humps; vertex and front uniformly granular- punctate, pronotum finely punctate 2 2. Front femur of male produced knob-like "at the base; male clypeus and mesonotum weakly silvered, the silvering espe- cially on the latter with a slight yellowish tint; wings slightly but distinctly yellow-stained; pale coloration, of the thorax at least, yellow; abdomen without reddish markings scutellaris -. Front femur of male slightly, swollen at the base but not pro- duced knob-like; male clypeus and mesonotum heavily silvered obscuring the puncturation ; wings perfectly clear; pale col- oration of the body ivory-white; abdomen with reddish mark- ings platiniceps Euparagia maculiceps (Cameron) Plesiomasaris maculiceps Cameron, 1904, male. Trans. Am. Ent. Soc., 30:267. Odynerus simplicipes Cameron, 1905, male. Trans. Am. Ent. Soc., 31:380. Psiloglossa simplicipes Rohwer, 1909, female. Ent. News., 20: 357. Euparagia maculiceps Bradley, 1922, male, female., Univ. Calif. Publ. Ent., 1:384. 138 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 New Mexico: Las Cruces, August 31, one female at flowers of Solidago, C. H. Townsend, {simplicipes Roh. type, U. S. N. M.) ; Mexico: Guerrero, 3000 ft., Godman and Salvin, {ma~ culiceps and simplicipes Cam. types, British Museum). Euparagia scutellaris Cresson Euparagia scutellaris Cresson, 1879, male, female. Proc. Acad. Nat. Sci. Phila., Ent. Sec., 6:6 (genotype by monotypy). Euparagia maculifrons Bradley, 1922, Univ. Calif. Publ. Ent., 1:384 (in error). Euparagia scutellaris Bradley, 1922, male, female. Univ. Calif. Publ. Ent., 1:385. Euparagia scutellaris F. X. Williams, 1927, habits. Pan-Pac. Ent., 4:38-39. An account of the nesting habits has been given by F. X. Williams who records it as “nesting in the hard ground, in one case on the slope of an exposed gravelly pit; the burrows which were not deep, terminating in one or more cells, and were sur- mounted by a idelicate and slender curved tube of clay.” The cells were provided with semi-paralyzed curculionid larvae. Altho the nests were not observed, a pair of this species was taken by the author on Mt. Diablo, California, flying very low above a boggy area near a spring on an exposed hillside. Nevada: two males, two females (type specimens, A. N. S. P.) . California: Lake Tahoe, July, 1925, females (F. X. Williams) ; Sobre Vista, Sonoma County, one female (J. A. Kusche) ; Mt. Diablo, 500 ft. elev., one pair. May 12, 1937 (R. M» Bohart) ; Yosemite Natl. Park, one male, Aug. 2, 1930 (E. C. Zimmer- man) ; Santa Cruz Mts., one female, coll. U. S. N. M. ; Santa Clara County (C. F. Baker) ; Palo Alto, one male. May 31, 1922 (S. F. Flanders) ; Kaweah, Tulare County, one male, June 21, 1937; Claremont, four males, one female (C. F. Baker). Euparagia platiniceps Bohart, new species This species is most closely related to scutellaris but can easily be distinguished by the characters given in the key. The front JULY, 1938] R. BOHART— EUPARAGIA 139 femur of scuteUaris male is produced at the base into a knob-like tooth below and a small swelling' behind. Also the front trochanter has a stout curved finger-like terminal process. In platiniceps the front femur is merely' slightly swollen at the' base and the process of the trochanter is shorter, very slender, and sharply pointed. The posterior half of the propodeum is dull and closely punc- tured in scutellari& but shining and sparsely punctured in platini- ceps. The pubescence of the former is much more sparse and of a less brilliant white-silver color than that of the latter, the front and clypeus of which are densely platinum-hirsute. The male genitalia of the two species do not appear to offer significant differences. Male. Black, the following parts ivory-white: an inferior spot on underside of first antennal segment, mandibles except at apex, clypeus except marginally all around, a spot on vertex adjacent to compound eye, dorsal surface of pronotum except latero-poste- rior margin, outer margin of tegula, a spot beneath fore tegula on mesothorax, a median posterior spot on mesoscutum, a large cen- tral spot on mesoscutellum, outer apices of front and middle femora, bases and apices of all tibiae, outer bases of all tarsi, irregular apical bands on first six abdominal tergites, the first interrupted by a median line, median spot on seventh tergite, double median spots on sternites two to five; the following parts reddish brown: antennal flagellum, clypeus at apex, marks on apex of femora, tibiae and most of tarsi, central spot of fore tegula, a lateral mark on first abdominal tergite, sub-lateral marks on tergites two to six grading into black. Wings perfectly clear, hyaline, stigma and veins dark brown. Head and thorax thickly covered with a fine platinum-white silky pubescence, abdomen with a similarly colored but sparse short pubescence dorsally. Punc- turation very fine, the punctures almost contiguous except on propodeum which is shining thruout. Head broader than thorax, somewhat heart-shaped as seen from the front, greatest width at the emargination of the eyes; third antennal segment about twice as long as second; clypeus sharply bidentate apically, mandibles weakly tridentate. Thorax as seen from above almost as broad as long, pronotal angles rounded; fore femur slightly swollen at the base but evenly rounded, untoothed; process of fore trochanter very slender and sharply pointed. Venter of abdomen almost per- fectly flat, first sternite without a median furrow. Holotype, male, Lone Pine, Inyo County, California, June, 1937, N. W. Frazier, collector, deposited in the California Academy of Sciences (No. 4693). Paratype, one male, same data as holotype, in collection of author. 140 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 A NEW GENUS AND SPECIES OF ORSILLINI FROM CHINA (Hemiptera, Lygaeidae) BY ROBERT L. USINGER While studying the species of Lygasidse allied to Nysius it was found necessary to reexamine the generic classification of the tribe Orsillini. This tribe is world wide in its distribution and is characterized by an inordinate development of genera and species in a few insular areas. Of the mainland genera Or stilus has remained isolated as a rather homogeneous western and central Palaearctic group. To this may now be added a very divergent form from the central portion of East China. Sinorsillus Usinger, n. gen. Form broad and flattened or subdepressed. Body, excepting area surrounding ostiolar canals, shining and densely clothed with a relatively long, fine, subdepressed, fulvous pubescence. Head, pronotum, and scutellum structurally much as in Orsillus. Ros- trum very long but not quite reaching to tip of abdomen. Con- nexivum broadly exposed, immaculate. Femora entirely inermous. Genotype: Sinorsillus piliferus Usinger, n. sp. Allied to the European and circum-Mediterranean genus Orsillus Dallas with which it agrees in its depressed form, por- rect and slightly exserted head which is strongly produced in front of the eyes, straight or only slightly rounded costal mar- gins, broadly exposed connexivum, and very long rostrum. In Orsillus, however, the front femora are distinctly spined beneath, the connexivum is usually conspicuously alternated, and the body surface is duller and covered with a shorter and less conspicuous pale pubescence. Sinorsillus piliferus Usinger, n. sp. Head porrect; scarcely broader, eyes included, than long; pro- duced before the eyes for a distance one and one-half times the length of an eye; tylus broad, depressed before the apex; juga long and prominent, swollen near base of tylus; vertex scarcely elevated and transversely rugose, three times as broad as width of an eye; antenniferous tubercles obliquely directed downward, produced from obsolescent, rounded carinae along inner margins of eyes anteriorly, the outer apical angles minutely subacute. Eyes small, the head slightly exserted and distinctly constricted behind them. Ocelli over twice as far apart as distance from an ocellus JULY, 1938] USINGER— SINORSILLUS 141 to inner margin of eye and over three times as far apart as dis- tance to posterior margin. Bucculas scarcely elevated; long but practically disappearing behind level of antenniferous tubercles, defined posteriorly only by the rostral groove. Rostrum very long, extending to posterior margin of fifth visible abdominal segment; the first segment reaching well onto anterior portion of proster- num; proportion of segments one to four as 15:16:16:11. Antennse about as long as distance from apex of head to apex of scutellum; first segment attaining apex of head, robust at least on apical half; second and third slender, but slightly enlarged at apices; fourth enlarged, fusiform; proportion of segments one to four as 5:10:9% :11. Pronotum a little longer than head on median line; one-third broader behind than long; the disk scarcely declivous, subflattened, moderately depressed immediately before and behind callosities and just within humeral angles; callosities moderately, broadly, and roundly elevated; lateral margins, gently, evenly rounded anteriorly and scarcely sinuate before humeral angles; obscurely carinate as seen from the side; posterior margin a little convex before base of scutellum, sublaterally feebly depressed and a little lamellate; anteriorly distinctly, rather densely punc- tate except on callosities, more finely and sparsely punctate pos- teriorly except for smooth posterior margin and raised humeral angles. Scutellum over one-third broader than long; disk greatly roughened even on the transverse, subbasal elevation, impunctate apically on longitudinal carina and within apically upturned mar- gins. Hemelytra reaching almost to tip of abdomen, entirely im- punctate; commissure of clavus about as long as scutellum; costal margins almost straight, subparallel basally, scarcely dilated be- hind level of apex of scutellum, and then gently, roundly converging posteriorly thus exposing a considerable portion of connexivum; connexival margins moderately reflexed. Ostiolar canal very long, extending about one-half the distance to outer margin of meta- pleuron; produced apically as a narrow lobule which is rounded at apex. Posterior margin of metapleuron broadly lamellate, a little reflexed, and sinuate; postero-lateral angle rounded. Femora moderately incrassate, unarmed. Color fulvous over a great portion of the pronotum, hemelytra, and abdomen with the following dark or fuscous markings: head, except at middle of vertex and on either side beneath; anterior lobe of pronotum surrounding callosities; scutellum except at ex- treme apex; apex of clavus, especially along commissural margin; apex of second antennal segment and the entire fourth segment; apex of rostrum; entire under surface except for ochraceous aceta- bula, posterior reflexed margins of metapleura, lateral margins of venter; and apical tarsal segments. Eyes and femora ferrugineous. Corium almost luteous. Membrane subhyaline, partially tinged with a milky -white suffusion. Length, 6 mm.; width (connexivum), 2.2 mm. 142 THE PAN-PACIFIC ENTOMOLOGIST [yoL. XIV. NO. 3 Holotype, male, No. 4674, C. A. S., Ent., collected by Mrs. Dora E. Wright at Mokanshan, Chekiang Province, China, on September 16, 1927. This species is closest in size and general aspect to Orsillus reyi Puton which, however, has a shorter rostrum, strongly spined front femora, flatter pronotal disk, and paler coloration with a suggestion of maculations on the connexivum. A NEW RACE OF LYC^NA MARIPOSA (Reakirt) (Lepid. Lycaenidae) BY WILLIAM D. FIELD Lawrence, Kansas Recently I have had the opportunity of comparing three dif- ferent series of Lyccena mariposa (Reakirt). One series was a typical mariposa from Eldorado and Tuolumne counties, Cali- fornia; one from various localities in thei Yellowstone National Park, east of the Continental Divide; and the third from the Teton Mountains, Wyoming. The Teton Mountains material agrees very well with the typical insect but the Yellowstone ma- terial shows a variation from the typical one. This variation is so constant that I think it can safely be idescribed as a new race. If it should prove later to be a new form, then the new name can be used as a form name. Lycaena mariposa penroseae Field, n. race Male. Upper side: Darker than typical mariposa with the same purplish irridescence. The dark borders are much wider than in the typical butterfly. The latter butterfly was described as having vestiges of fulvous anal lunules on the secondaries. There are not even any vestiges of these lunules left in this race. Under side: The grayish brown ground color found in typical mariposa on the secondaries and on the apex of primaries is here much darker, being greatly clouded with dark brown and blackish scales. Female. Upper side: The primaries are quite similar to those of the typical insect except that they are a little darker toward the base of the wing. In the secondaries all of the fulvous spots are entirely clouded over by dark brown, giving a uniform dark brown color to the wings. Under side: Differs from mariposa mariposa in the same way that the male differ with the addition that all markings in female penrosex are larger and darker. JULY, 1938] FIELD— LYC^NA MARIPOSA 143 Holotype, $, Lake Eleanor, Yellowstone National Park, ele- vation 8500 ft., July 21, 1936 (F. Martin Brown); allotype, 9, same data ; paratypes, S , numbers 1 through 3 and 9 , numbers 4 and 5, same data; paratypes, numbers 6 and 7, Cub Creek, Yellowstone N. P., 8500 ft., July 21, 1936 (F. Martin Brown) ; paratype, $ , number 8, Virginia Meadows, Yellowstone N. P., 8500 ft., July 21, 1936 (F. Martin Brown) ; paratype, 9, num- ber 9, Mt. Washburn, Yellowstone N. P., July 22, 1936 (F. Martin Brown) ; paratype, 9, number 10, Elkhorn Ranch, Mon- tana, July 20, 1931. Paratypes numbers 3 and 4 in the author’s collection. All other types are in the collection of F. Martin Brown, Colorado Springs, Colorado. This butterfly is named after Mrs. Spencer Penrose of Colorado Springs in acknowledg- ment of her interest in Lepidoptera. GEORGE RINGO WILSON 1885—1938 With the death in Alameda on June 11th, of George R. Wilson, Associate Quarantine Entomologist with the Bureau of Plant Quarantine, California State Department of Agriculture, and Collaborator with the Bureau of Entomology and Plant Quarantine, United States Department of Agriculture in San Francisco, there passed an entomologist of rare ability, who, due to his innate modesty was possibly not as widely known to the outside world as he should have been, but whose loss will be keenly felt by the services for whom he labored and by those who knew him personally as a co-worker. He was born in Mulberry, Kansas, January 11th, 1885, moving to California a few years later. His normal early interest in insects was continued later, culminating in his receiving the degree of Bachelor of Science in Agriculture at the University of California in 1910, with his major in entomology. Imme- diately out of college he returned to his former home in Southern California and became associated with the ofl&ce of the Horti- cultural Commissioner of Riverside County as Entomologist and Inspector. While he qualified himself for the position of County Horticultural Commissioner in that county, he refused appoint- 144 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 3 merit, preferring to continue his entomological work. In 1917 he saw an opportunity to follow his inclinations further, and accepted a position as Quarantine Inspector with the State De- partment of Agriculture at the Port of San Francisco. Here also he later qualified himself for appointment to Senior Inspector in charge of the port, but again when opportunity offered shunned the administrative duties in favor of his entomological work, which he continued until his death. Due to the fact that San Francisco until recently was one of the only two authorized ports of entry for plant maerial from foreign countries under a permit, a tremendous number of inter- cepted insects from all parts of the world passed through his hands for determination. The opportunities were abundant but demanding; in fact, so demanding that he found little time to record and publish his findings, with the result that a vast fund of information on world species, distribution and hosts, which he had at his finger tips, passed with him. He possessed an un- canny entomological sense which allowed him to place innumer- able intercepted specimens immediately to a point which even the resources of the National Museum could carry little further. His personal interests lay in the Coccidae and he found the time to gather together both a private and an official collection v/hich in number of species is exceeded by few others in this country. He had in preparation at the time of his death a manu- script covering his work in this group which it is hoped may be in such shape that it can be offered for publication at a later date. He was a member of the Del Rey Fraternity, in which he maintained an active interest; also of the American Association of Economic Entomologists, the Entomological Society of America and the Paeific Coast Entomological Society. He was particularly active in the latter organization, never missing a meeting or a field trip. Quiet, reserved, keenly interested in matters outside his own field, always helpful where opportunity offered, he will be deeply missed and always remembered by his friends and co-workers. — H. M. Armitage. The binocular microscope shown at the left is the new wide field binocular, BKW. This stand is inclinable, with large sturdy horseshoe base. I he mirror is 60 mm. di- ameter. When desired, the base may be removed and the microscope placed di- rectly upon the specimen. The BKW is priced from $127.50 depending upon the equipment selected. BKW-5, for example, in- cludes two pairs eyepieces (I OX and I 5X) three sets of paired objectives (0.7X, 1 .5X, 2. OX mounted in Drum Nosepiece, and case, $198.00. MEETS THE REQUIREMENTS OF THE ENTOMOLOGIST The KW Wide Field Binocular Miscroscope is especially suited to the "all around" needs of the entomologist. Long working dis- tance allows ample room for manipulating large specimens. The erect, stereoscopic view facilitates dissection. The objectives and eyepieces of the KW are designed to give an extremely wide field and high eye point. An exclusive feature of the KW Series is the B&L patented drum nosepiece. A wide selection of Binocular Misroscopes of the Greenough type is described in Catalog D-I5- These include, in addition to the KW Series, supplementary models designed to suit specific needs of the educational or industrial worker. We shall be glad to suggest a model for your work. • • BAUSCH & LOMB OPTICAL COMPANY ROCHESTER, NEW YORK SAN FRANCISCO ADDRESS: 593 MARKET STREET Vol. XIV October, 1938 No. 4 THE Pan-Pacific Entomologist CONTENTS HATCH, COLEOPTERA OF ALEUTIAN ISLANDS 145 COCKERELL, A NEW BEMBECINE WASP 150 HATCH, M. H., and BEER, F. M., A NEW DICERCA 151 DRAKE, C. J., and HARRIS, H. M., A NEW RHAGOVELIA 152 BEAMER, R. H., TWO NEW ALLYGIANUS 153 JAMES, M. T., A SECOND SPECIES OF SCOLIOPELTA 156 ZIMMERMAN, E. C., IDOSAULUS, A NEW GENUS OF FIJIAN CRYPTORHYNCHIN^ 158 CAZIER, M. A., A NEW CALIFORNIA POLYPHYLLA 161 BLAISDELL, F. E., A NEW LISTRUS FROM SEQUOIA NATIONAL PARK, CALIFORNIA 165 MITCHELL, T. B., ON THE MEGACHILID SUBGENERA XEROMEGACHILE AND DEROTROPIS 168 LINSLEY, E. G., LONGEVITY IN THE CERAMBYCID^ - 177 MICKEL, C. E., PHOTOPSOID MUTILLIDS, COLLECTED BY K. A. SALMAN 178 Delong, d. m., three new species of texananus i85 LANE, M. C., A NEW SPECIES OF EANUS 188 PROCEEDINGS OF THE PACIFIC COAST ENTOMOLOGICAL SOCIETY 191 Published by the Pacific Coast Entomological Society in co-operation with The California Academy of Sciences San Francisco, California 1938 THE PAN-PACIFIC ENTOMOLOGIST Published quarterly in January, April, July and October by the Pacific Coast Entomological Society in co-operation with the California Academy of Sciences. Domestic and foreign subscriptions $2.00 in advance. Sub- scriptions should be sent to the treasurer, E. R. Leach, De- partment of Entomology, California Academy of Sciences, Golden Gate Park, San Francisco, California. Make checks payable to the “Pan-Pacific Entomologist.” Manuscripts for publication and communications regard- ing non-receipt of numbers, change of address, requests for sample copies, etc., should be addressed to the editor, Mr. E. P. Van Duzee, California Academy of Sciences, Golden Gate Park, San Francisco, California. Advertisements will be accepted for the back cover pages. For rates address the editor or treasurer. Twenty-five copies or more of author’s extras will be fur- nished free on request. Additional copies will be supplied at cost of publication if a request is received with the manu- script. INSECT BOXES Standard size black insect box with sides of box and cover made of 1 / 4 " redwood. The top, bottom and shoulders are of heavy cardboard. Inside dimensions: I2f4x8^/4x2^ inches. Prices: 60 cents each. Lots of one dozen, 50 cents each. With Masonite bottom, 15 cents extra. With glass top, 50 cents extra. Prices for larger quantities on request. RAISIN AND THIEBAUT BROS., LTD. 346 First Street, San Francisco, Calif. Entered as second class matter, February 10, 1925, at the postofiice at San Francisco, California, under Act of August 24, 1912. The Pan-Pacific Entomologist VOL. XIV, No. 4 October, 1938 REPORT ON THE COLEOPTERA COLLECTED BY DR. VICTOR B. SCHEFFER ON THE ALEUTIAN ISLANDS IN 1937 BY MELVILLE H. HATCH University of Washington The present paper is a report on the Coleoptera collected by Dr. Victor B. Scheffer, of the United States Biological Survey in connection with a Biological Survey expedition to the Aleutian Islands, Alaska, in 1937. The number of specimens is given in parentheses after the date of capture following the name of each island. The previous Aleutian Island distribution of each species is indicated. A star in front of a species shows a westward extension of its previously recorded Aleutian Island distribu- tion and a double star indicates its addition to the Aleutian Island list. Of the 27 species listed, eight have not apparently been recorded previously from the Aleutian Islands and eleven have their distribution extended westward by the present records. The 27 species constitute about one-fourth or more of the total recorded Aleutian Island beetle fauna. I am greatly indebted to the United States Biological Survey for permission to study this interesting material. Carabid.® Scaphinotus {Brennus) marginatus Fisch. Sanak, Aug. 27 (I) ; Unalaska, July 8, Aug. 6 (4). Previously recorded from Akutan, Unalaska, and Atka. *Nebria metallica Fisch. Amchitka, July 19 (3). Previously recorded from Akutan, Unalaska, and Atka. ^Nehria gregaria Fisch. Amlia, Aug. 12 (2) ; Semisopochnoi, July 22 (2) ; Kiska, June 5, 21 (10) ; Little Kiska, June 22 (16). Previously reported from Unalaska. * Pterostichus {Cryobius) ? empetricola Dej. Amlia, Aug. 12 (I); Amchitka, July 20 (2). Previously recorded from Unalaska and Atka. ]^46 pan-pacific entomologist [vOL. XIV. NO. 4 Pterostichus (Cryobius) ? ventricosus Dej. Unalaska, July 8 (1). Previously recorded from Unalaska. * Pterostichus (Bothriopterus) adstrictus Esch. Agattu, June 12 (1). Previously recorded from Unalaska and Atka. Calathus micropterus Duft. {ingratus Dej,), Unalaska July 14 (2). Previously recorded from Unalaska. Comparisons I have made indicate the identity of the Nearctic ingratus with the Palaearctic micropterus, giving the species a nearly circum- polar distribution. Pristodactyla advena LeC. var. lenis Mann. Amlia, Aug. 12 (1). Previously recorded from Unalaska and Atka. Dytiscid^ * Hydro porus nigellus Mann. Kiska, June 5 (17) ; Agattu, June 12 (14) ; Attu, June 10 (5). Previously recorded by Fall (Rev. N. Am, Hydroporus 1923, p. 83) from Unalaska and Atka. Two specimens from Kiska have the elytra glabrous and somewhat paler and represent what is probably a mutant form similar to that indicated below for H. griseostriatus DeG. ** Hydroporus tristis Payk. Unalaska, July 10 (6). Not previously recorded from closer than Sitka. ^Hydroporus {Potctrrwnectes) gyiseostriatus DeG. Sanak, Aug. 28 (17); Unalaska, July 10 (4); Agattu, June 12 (1). Previously recorded from Unalaska. A single specimen from Sanak belongs to the glabrous variety mathiasi Hatch (Bull. Brook. Ent. Soc., XXVIII, 1933, p. 22) described from Wash- ington. Agabus irregularis Mann. Unalaska, July 8 (3). Pre- viously recorded from Unalaska as hypomelas Mann. (cf. Leech, Can. Ent., LXIX, 1937, p. 149). Agabus infuscat'us Aube. Tanaga, Aug. 6 (6). Pre- viously recorded from the Alaska Peninsula. Ilybius 4-maculatus Aube. Unalaska, July 10 (6). Previously recorded from Unalaska and Atka. *Colymbetes dolobratus Payk. Unalaska, July 10 (2) ; Kiska, June 5 (1); Agattu, June 12 (12); Attu, June 10 (6). Pre- viously recorded from Unalaska and Atka. Undoubtedly the same species as thati reported under this name from south central Alaska by Hamilton (Trans. Am. Ent. Soc., XXI, 1894, pp. 14, OCT. 1938] HATCH— ALEUTIAN ISD. COLEOPTERA 147 359) and Van Dyke (Nat. Geog. Soc. Contrib. Tech. Pap. II, 1924, p. 14) . I am unable to distinguish the present series from sculptilis Harr, from central North America, the characters pre- viously cited by me (Hatch, Bull. Brook. Ent. Soc., XXHI, 1928, p. 325) not being valid. The pronotal and elytral sculp- ture of the two sexes in the present series is nearly equal, that of the pronotum being fine and more or less discontinuous except in the male and female from Unalaska, where it is deep and in part more or less reticulate. **Dytiscus {Macrodytes) circumcinctus Ahr. Sanak, Aug. 28 (1). Also a single female from Cordova on the mainland. Gyrinid.® **Gyrinus opacus Sahib. Sanak, Aug. 20 (5) ; Attu, June 10 (13) A circumpolar species recorded from the Alaska Peninsula. Hydrophilid^ **Helophorus ? angustidus Mann. Unalaska, July 8 (1). The alternate elytral intervals are elevated and wider than the others, the striae deeply impressed with the intervals between the punctures well impressed; pronotum with anterior angles narrowly rounded, the side margins in front of the hind angles feebly obliquely sinuate. SlLPHID^ Lyrosoma opacum Mann. Gareloi, July 23 (6) ; Amchitka, July 20 (3) ; Little Kiska, July 22 (5). Previously known from Unalaska, Bogoslof, and Atka. Outside the Aleutian Islands it is known from Afognak, St. George, St. Paul, and Behring Islands and from Kamchatka, where, according to Van Dyke, “it lives in the rotting kelp and is at times completely submerged by the tides.” **Necrophorus {Necroptor) investigator Zett. subsp. mari- timus Guer. Sanak, Aug. 29 ( 1 ) . The single specimen at hand belongs to the ah. massetti Hatch (Journal N. Y. Ent. Soc., XXXV, 1927, p. 358) described from the Queen Charlotte Islands. 148 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 Catopid^ **Catops (Sciodrepa) basilaris Say. Gareloi, July 24 (16) Previously known from the Alaskan mainland. Staphylinid;e^ Creophilus maxillosus L. Attu, June 7 (7), on carrion. Previously recorded from Unalaska and Atka. These specimens belong to the typical form of the species which is not recorded from North America outside of Alaska and Greenland. They are distinguished from the subsp. villosus Grav. by the fact that the pubescence of the posterior angles of the head, the anterior angles of the pronotum, and the ventral surface of the metathorax, especially the side-pieces, is black instead of grayish. On the other hand, only the last two stemites of the abdomen are conspicuously darker in maxillosus , whereas the last three stemites are more or less evidently set with darker pubescence in villosus. Villosus is represented in my collection from Ketchikan, Alaska, and the Queen Charlotte Islands, British Columbia, and from Washington, Idaho, California, Utah, Kansas, Oklahoma, Louisiana, Iowa, Michigan, Ontario, and New York. It is recorded in the literature from as distant points as Labrador, Newfoundland, Florida, Cuba, Mexico, and Guate- mala. Hamilton (Trans. Am. Ent. Soc., XXI, 1894, pp. 19, 367) regards the Aleutian and south central Alaskan form of maxil- losus as var. hicinctus Mann., which Leng (Cat. Col. Am. N. of Mex. 1920, p. 109), following the synonymy proposed by Berahauer and Schubert (Col. Cat., 57, 1914, p. 398), calls var. arcticus Er. But Ganglbauer (Kaf. Mitteleur. II, 1895, pp. 4I5-4I6) , who is apparently the last author to have made a sur- vey of the situation, regards both arcticus and bicinctusi as synonyms of maxillosus, nor can I detect any satisfactory basis for distinguishing the Attu Island specimens from my short series from central Europe. In my series of villosus from Soap Lake, Washington, are five specimens in which the pubescence of the apical portion of the elytra and the hind margin of some of the abdominal ter- ^ Single specimens of each of two species of Atheta from Gareloi and Semi- sopochnoi Islands remain unidentified. OCT. 1938] HATCH— ALEUTIAN ISD. COLEOPTERA 149 gites is golden brown rather than black, a condition which appears to duplicate that described for the var. ciliaris Steph, in the Palaearctic region and which may well be due to a homologous mutation in the two regions. In the more strongly marked mem- bers of the series the pale transverse fascia on the elytra is almost completely obliterated by the golden pubescence, though it does begin to appear in other specimens. Since it is not desir- able to apply the same varietal name in two distinct subspecies, I designate this form ab. ciliaroides nov. (type and four para- types) . **Baryodma (Eucharina) sulcicollis Mann. Semisopochnoi, July 22 (3). Recorded from Kodiak Island and southeastern Alaska. Eurystethid.®: *Eurystethus calif ornicus Mots. Amchitka, July 20 (1). Recorded from the “Aleutian Islands” by Van Dyke. Elaterid.®: Ludius lobatus Esch.^ dark phase. Unalaska, July 14 (2). Previously recorded from Unalaska. SCARABAEID.®: Aphodius {Agolinus) aleutus Esch. Unalaska, July 14 (1). Previously recorded from Unalaska. CURCULIONID^ * Lophalophus inquinatus Mann. Amchitka, July 20 (8) . Previously recorded from Unalaska and Atka. Bibliography Hamilton, John. Catalogue of the Coleoptera of Alaska, with the synonymy and distribution. Trans. Am. Ent. Soc., XXXI, pp. 1-38, 1894. Van Dyke, Edwin C. Coleoptera from the Pribilof Islands. Proc. Cal. Acad. Sci., (4) XI, pp. 156-166, 1921. Van Dyke, Edwin C. The Coleoptera collected by the Katmai Expeditions. Nat. Geog. Soc. Contrib., Tech. Pap. II (1), 26 pp. 1924. ^Determined by M. C. Lane. 150 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 A NEW BEMBECINE WASP FROM SAN NICOLAS ISLAND, CALIFORNIA BY T. D. A. COCKERELL When I visited San Miguel Island in July, 1937, I found a fine species of Bembex visiting the flowers of Malacothrix implicata Eastwood. It was readily determined as B. hamata C. L. Fox, an insular endemic discovered by E. P. Van Duzee. On San Nicolas Island in July, 1938, I found a large Bembex occupying the same ecological position and quite common. It was especially abundant on flowers of Frarikenia grandiflora C. & S. close to the shore. I find that it is structurally very close to B. hamata but quite different in the markings. Bembex nicolai Cockerell, n. sp. Male (type) : Length about 19 mm., anterior wing 13 mm.; sim- ilar to B. hamata in the clear wings, venation, pubescence, and in the large curved spine on second sternite (which is, however, more produced apically), as well as in the character of the sixth ster- nite, with a strong oblique central spine and a keel on each side. The middle femora are strongly denticulate beneath. The antennal segments seven to nine are feebly subdentate beneath. The head is without light markings, except a small spot in supraclypeal region, and a trace of banding along middle of inner orbits, though the mandibles are light yellow except at base and apex, in the manner of B. hamata. Thorax entirely black. Abdomen shining black without light markings. Female. Similar, but without the spines on the under side of abdomen; clypeus and labrum cream color, the clypeus with or without two widely separated black bars on upper part. Spot between the antennae larger and bands along inner orbits con- spicuous, often more or less bow-shaped; scape black; tergites II to V with a sulphur-yellow mark on each side (visible from above only at sides of V), and these meet successively smaller yellow spots on the sternites. The legs are marked with light yellow in both sexes on the apical part of the femora, the tibiae in front (irregular on hind tibiae of female), and those of male all black in front but with a pale hairy band behind, and the tarsi in front. The tarsal spines are reddish, paler in the male. The eyes of Bembex nicolai are blue in life. One female is very small, about 13 mm. long but evidently the same species. The type male and a female will be sent to the California Academy of Sciences. OCT. 1938] HATCH & BEER— A NEW DICERCA 151 A NEW SPECIES OF DICERCA (BUPRESTIDyE) FROM WASHINGTON BY MELVILLE H. HATCH and FRANK M. BEER University of Washington, Seattle Dicerca hesperoborealis Hatch and Beer, n. sp. Length 17-18 mm.; color bronze; pronotum from four-sevenths to three-fifths as long as broad, the apex two-thirds as broad as the base, about as broad at the middle as at the base, the sides broadly arcuate in front, slightly sinuate behind, the hind angles slightly acute, the median line broadly and coarsely punctately sulcate, the sulcation bounded on either side by an elevated carina which is smooth except for occasional coarse punctures, the lateral portions of the disc coarsely punctured with elongate irregular smooth areas forming two more or less broadly interrupted carinse; elytra relatively finely sculptured with relatively inconspicuous elongate smooth areas, the apices entire and strongly produced; prosternum with two elongate smooth costae, the intervening sulcus coarsely rugosely punctate; mesotibia unmodified in female, the male with a prominent triangular tooth along the lower margin just proximad of the middle, the distal margin of the tooth serrate; last ventral abdominal segment with two elongate broad smooth costae, the posterior margin of the segment in the male truncate with the posterior angles produced to form large lobes or, in the female tridentate, the median tooth as long as and narrower than the lateral teeth. Type female: Wawawai, Washington, IV-31-1933, I. W. Bales, and allotype male, same data as type, V-14-1933, in Hatch collection at the University of Washington. Paratype female: Cle Elum, Washington, V-7-1933 (Wm. W. Baker), in collection of Wm. W. Baker. Distinguished from tenebrica Kby. {prolongata LeC.) by its smaller size (length 19-22 mm. in tenebrica), by the possession of two partially developed lateral costee on either side of the pro- notum (absent in tenebrica) and by the fact that the median tooth of the last ventral abdominal segment in the female is equal in length to the lateral teeth (shorter in tenebrica). 152 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 A NEW RHAGOVELIA FROM CUBA BY C. J. DRAKE and H. M. HARRIS Ames, Iowa Rhagovelia mira D, & H., sp. nov. Rather large, brownish, with prominent pale yellow markings. Antennae dark brown, the basal portion of segment I pale yellow; proportions, I:II:III:IV=60 :30:35:31. Rostrum stout, extend- ing to about middle of mesonotum; yellowish, the apex black. Legs stout, rath|8r densely clothed with long hairs; anterior legs with coxae, trochanters, and basal two-thirds of femora yellowish, their tibiae not especially widened distally. Intermediate legs dark brown, coxae and trochanters yellowish, apical tarsal seg- ment distinctly longer than preceding. Hind legs extremely stout, the coxae, trochanters and most of femora within yellowish; femora enormously swollen, armed within with two rows of spines, the spines much larger along distal two-thirds. Tibiae strongly curved, beset within with stout spines, with a very large, stout spine at apical fourth. Pronotum not covering mesonotum, much shorter than broad, the hind margin broadly rounded; yellowish, the anterior margin and apical half dark brown. Mesonotum yel- lowish. Head convex above, yellowish brown, darker near eyes. Abdomen dark brown, a large yellowish spot on each of last five segments, the spots becoming larger distally. Connexivum yel- lowish brown, the margins of the segments dark. Length, 4.60 mm.; width, 1.70 mm. Holotype, apterous male, two apterous male paratypes, and one teneral male, Sierra Maestra, Cuba, July 10-20, 1922, 3000-4250 ft., collected by C. H. Ballou and S. C. Bruner, authors’ collection. This species is easily recognized by its color, the greatly inflated hind femora, and the nature of the pronotum. The female and winged form are unknown. The Fire at the Oregon State College Prof. H. A. Scullen writes me that the recent fire at the Ore- gon State College did not affect the building in which the ento- mological collections are housed. This will be welcome news to our western entomologists, as, in addition to the types, there is much valuable material in the Oregon collection. — E. P. Van Duzee. OCT. 1938] BEAMER— ALLYGIANUS 153 TWO NEW SPECIES OF ALLYGIANUS (HOMOPTERA CICADELLID^) BY R. H. BEAMER Lawrence, Kansas* Allygianus gutturosus (Ball) Allygus gntturosa Ball, E. D., Can. Ent., XIII, p. 307, 1910. This species, named from two males from Beaumont, Cali- fornia, has not been retaken. The following description of the male genitalia is taken from one of the males which is here designated Lectotype. Genitalia: Valve about twice as long as preceding segment, triangular; plates wider at base than valve, about one and one- half times as long, outer margins almost straight, narrowing slightly to broad almost truncate apices which are slightly longer on inner margin. Pygofer with a huge S-shaped hook at apex, arising from inner margin near anal tube. Allygianus merus Beamer, n. sp. Resembling Allygianus va/rius, but vertex not so sharp, female last ventral segment with posterior margin sharply excavated near lateral margins, leaving a rather deep excavation with a slightly arched bottom, and male pygofers narrowed to quite short spines which merely curve toward each other. Length 6.25-7.5 mm. Vertex in form about midway between A. gutturosus and A. varius; length is to width between eyes:: 3.5:7. Elytra heavily reticulate. Color buff with frontal arcs of face visible on vertex from above ; veins of elytra lighter, usually evenly bordered with fuscous; venter salmon pink to stramineous. Genitalia: Last ventral segment of female almost three times as long as preceding; lateral margins with outer angles broadly rounded, posterior margin sharply excavated on outer third to a slightly produced median third. Male valve a little longer than preceding segment, broad, sharply angular; plates scarcely broader than valve at base, gradually narrowed to broad, angu- larly truncate, apices, longest on inner margin; pygofers narrowed to rather short black spines which curve gently in toward each other. Holotype male, allotype female, four male and one female paratypes. Orange County, California, July 14, 1929, R. H. ♦Contribution from Department of Entomology, University of Kansas. All types of new species in the Snow Collection. Illustrations by Miss Maxine Graham. 154 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 Beamer; three males and four females, San Diego County, Cali- fornia, July, 1929, P. W. Oman; three males and two females, Alpine, California, July 5, 1931, E. D. Ball; one pair, Elsinore, California, August 3, 1935, R. H. Beamer. Types in Snow Entomological Collection, paratypes in United States National Museum and collection of E. D. Ball. Allygianus varius Beamer, n. sp. Resembling Allygianus gutturosus Ball, hut vertex of male decidedly more angular, the male plates longer and more slender with rounded apices, and the pygofer hook not in the form of S but just bent in and down. Length, 7 mm. Vertex decidedly more angulate than in A. gutturosus, the disc quite distinctly concave; median length is to the width be- tween eyes:: 3.75:6.5. Elytra heavily reticulate. Ocelli on margin of vertex, about two of their own diameters distant from eye. General color butf. Vertex with dark frontal arcs, barely visi- ble from above. Veins of elytra lighter, quite generally bordered with fuscous. Genitalia : Last ventral segment of female almost twice as long as preceding, posterior margin angularly excavated to about one- sixth length of segment. Male valve slightly longer than preceding segment, angular; plates wider at base than valve, slightly nar- rowed to rather broad, rounded apices. Pygofer narrowed to long dark spines which curve down and toward each other instead of making the large S curve as in A. gutturosus. Holotype male, allotype female and numerous paratypes. Big Bear Lake, California, July 26, 1932. Swept from Arctostapha- lus sp. Explanation of Plate 1. Allygianus gutturosus, head of male; la, view of male valve and plates; lb, dorsal view of tip of abdomen showing hooks on py gofers. 2. Allygianus merus male head; 2a, male valve and plates; 2b, ventral view of tip of abdomen of female; 2c, dorsal view of tip of abdomen of male showing pygofer hooks. 3. Allygianus varius head of male; 3a, head of female; 3b, ventral view of tip of abdomen of female; 3c, valve and plates of male; 3d, dorsal view of tip of abdomen of male showing pygofer hooks. OCT. 1938] BEAMER— ALLYGIANUS 155 3b 156 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 A SECOND SPECIES OF SCOLIOPELTA (Diptera, Stratiomyidae) BY MAURICE T. JAMES Colorado State College The genus Scoliopelta was erected by Williston in 1885 for the reception of a new species, S. luteipes, and has until today been considered monotypic. In his original description, Willis- ton placed this genus in the Beridinae, and Enderlein has fol- lowed him in this respect. In the second edition of his Manual of North American Diptera, Williston traces it in his tables to both the Beridinae and the Clitellariinae, and in the third edition he omits it from the Beridinae. The latter course can be justified by the fact that Scoliopelta has only five abdominal segments, if we do not count the terminal ones which are telescoped into the fifth. This is true of the Clitellariinae in general. The genus might be defined as clitellariine with certain beridine characters (e. g., the six-spined scutellum, the antennal structure and cer- tain details of wing venation are suggestive of the Beridinae) . The best course to follow is to recognize it as a form interme- diate between the two subfamilies, but placed in the Clitellariinae, as that subfamily is usually defined. Scoliopelta luteipes Will, is evidently of rather unusual occurence. It has been recorded in literature from New Hamp- shire, Vermont, Massachusetts, and New York, and I have seen specimens from Tennesseei (Smoky Mountains, September I, 1933, C. L. Fluke). The type, from New Hampshire, is in the Snow Entomological Collection of the University of Kansas. A second species is described in this paper. Scoliopelta grandis James, new species Larger than S. luteipes', thorax brown dorsally, in contrast to the shiny black abdomen; legs brownish; third posterior vein (M3) extending to the wing margin, and the first and sec- ond posterior veins do not meet at the point where they join the discal cell. Female. Head black. Front, vertex, and occiput shiny, the face dull. Proboscis brown. Pile uniformly dense, short, mostly OCT. 1938] JAMES— SCOLIOPELTA 157 yellow. Front broad, its width above the antenn-se one and two- thirds the width of each eye, as seen from the front. Eyes densely clothed with short black pile. Antennae black; segments I and II subequal. III to X fused into a flagellum which is twice the length of the first and second segments combined; flagellum broad at the base, gradually tapering to apex; its first annulus about as long as the first antennal segment; second and terminal annuli of the flagellum each somewhat shorter, the intermediate ones very short. Thorax brown, somewhat more blackish On the pleura, densely clothed with short yellow pile which, because of its shortness, is inconspicuous; scutellum brown, its pile some- what more conspicuous at the apex; six-spined, the median pair of spines somewhat the longest. Legs brown, the knees and basi- tarsi somewhat more yellowish. Halteres dull yellow. V/ings light brownish, the veins brown; apex of discal cell, between the origin of the first and second posterior veins, almost as long as cross vein r-m; third posterior veins reaching the wing margin; vein as in luteipes, long. Abdomen shiny black, with incon- spicuous yellow pile. Length, 9.5 mm. Holotype: female, Emigrant Creek Camp, Lane County, Ore- gon, Aug. 17, 1935 (H. A. Seullen) . In the Oregon State Col- lege eolleetion. Observations on the Striding Habits of the Gerrid^ (Hemiptera) This note is based upon careful observation of the striding motions of two members of this family in a small stream in Ravenna Park, Seattle, Washington. The stream was flowing rapidly enough to make the Gerrids stride quite often against the current to compensate for the distance lost by drifting. The small anterior pair of legs apparently did not move. The middle pair of legs, which are well developed, did all of the forward propelling of the bug. The third, posterior, pair of legs served exclusively as rudders to direct the forward course of the ani- mal. I did not notice the posterior pair of legs ever being used as anything but rudders when the animal was striding over the surface of the water. — Robert Y. Pratt. 158 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 IDOSAULUS, A NEW GENUS OF FIJIAN CRYPTORHYNCHIN^ (Coleoptera, Curculionidae) BY ELWOOD C. ZIMMERMAN Bernice P. Bishop Mtiseum The generic name Idosaulus is here proposed for the recep- tion of a new Fijian weevil closely allied to Deretiosus Pascoe, 1871. In my paper, “On Lea’s Fijian Deretiosus” (Bishop Mus. Occ. Papers, vol. 13, no. 7, 1937), I gave a key for the separa- tion of the Fijian genera allied to Deretiosus. That key is now amended to include Idosaulus. Key to the Fijian Genera of the Deretiosus Group 1. Funicle of the antennae seven-segmented. 2 -. Funicle of the antennae six-segmented 3 2. Femora strongly toothed Deretiosus -. Femora not toothed Idosaulus 3. Femora not toothed; third tarsal segment hilobed. ...Deretiodes -. Femora toothed; third tarsal segment truncate distally and not bilobed T eleodactylus Deretiosus and its allies have the pectoral canal squamose throughout, and the apex of the rostrum rests against the modi- fied anterior part of the metasternum when at repose. There is no raised mesoternal receptacle. Idosaulus Zimmerman, new genus Body densely squamose above and below. Head strongly con- vex, concealed from above by the pronotum; the interocular area as broad as the base of the rostrum. Rostrum somewhat com- pressed dorso-ventrally, slightly arcuate. Antennae inserted near the middle of the rostrum; the scape shorter than the funicle excluding the club; the funicle seven-segmented, the first two segments somewhat elongate, the first more bulky than the sec- ond. Prothorax somewhat broader than long; postocular lobes not very strongly developed, but concealing the eyes at repose; dorsum fasciculate. Scutellum visible and prominent. Elytra with fascicles and calli; finely striate; the intervals broad and flat or slightly convex; base slightly sinuous and there broader than the prothorax, the humeri prominent. Legs with the femora edentate; tibiae straight and not carinate on the inner edge; armed with a strong uncus arising from the outer apical angle, and at OCT. 1938] ZIMMERMAN— IDOSALUS 159 most with a minute denticle at the inner apical angle; tarsi with the third segment bilobed, the fourth longer than the second and third segments together. Sternum^ with the pectoral canal densely squamose throughout, terminating in a cavernous receptacle in the anterior part of the metasternum; fore coxae contiguous to the mid coxae; mesosternum without very prominent tubercles before the coxae ; metasternum about as long as the metocoxae between the mid and hind coxae, the metepisternal suture distinct. Venter with the sutures all distinct; ventrites I and II subequal in length along the median line, II as long as the three following together, III and IV subequal, V about at long as III plus IV. Genotype: Idosaulus abditus, new species. This genus is closely allied to Deretiosus, but it is distinct from that genus because of its edentate femora, straight, non- carinate tibiae, contiguous fore and mid coxae, and by the cavernous structure of its metasternal receptacle. The fascicles on the prothorax are not strongly developed as they are on Deretiosus, and the lateral ones are less prominent than the discal ones. Idosaulus abditus Zimmerman, new species Female. Derm dark reddish-brown, shining, normally com- pletely concealed by the dense scaling on the body, the scaling dusted with a light brownish incrustation; head and base of the rostrum with fawn to dark brown scales, the crown usually with a scattering of pale or white scales; prothorax with a broad, longi- tudinal, median, white vitta extending from base to apex and including the median and apical fascicles, bounded on either side by a very dark brown or black, irregular vitta that extends from the base to the apex between the median and lateral fascicles, scaling on the sides brown and white intermixed; scutellum dark brown; elytra with a rather irregular V of predominantly white scales from the humeri to the suture between the second fascicles on the third interval, the scales on the first and second intervals from the base to the second fascicles on the third intervals almost entirely white and continuous with the vitta on the prothorax, but those on the sides, especially at the base, intermixed with brown to very dark brown scales, with the first two intervals predominantly very dark brown from between the second fascicles on the third intervals to near the apex, elsewhere with scattered patches of white and brown scales intermixed; legs with the femora vaguely and indistinctly banded with white and brown scales ; scaling below dirty white. Head densely puctuate; the scaling very dense, the squamae rather small and concave, with short, stout setae showing through. Rostrum densely squamose and with small setae almost to the 160 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 antennae, shining and with small, dense punctures beyond the antennae which are inserted just before the middle. Antennae with the scape strongly clavate, as long as the first four funicular segments; first funicular segment slightly longer than the second and twice as broad, the second almost as long as three plus four and not stouter, segments three to seven more or less subequal in length but becoming broader distally; club as long as the pre- ceding four segments together, bluntly ovoid, the first segment making up at least one-half its mass. Prothorax one-seventh broader than long (3.5:3), almost straight and parallel-sided from the base to the middle, slightly constricted and thence broadly rounded to the apex; base slightly sinuous; with six fascicles, four across the middle and two at the apex, the discal pair most prominent and not arising from prominent callosities, the apical pair with loose setae; without a row of prominent setae along the apical margin. Elytra five-eighths as broad as long, about two and one-half times as long as the prothorax, base slightly sinuous, subparallel-sided behind the roundly rectangular humeri to above the second ventrite and thence broadly rounded to the apex; striae fine, the punctures small but broader than the striae in the basal half; interval I with several distinct pustules from before the middle to the apex; II without erect setae or pustules; III with a low, elongate callosity bearing the most prominent elytral fascicle just behind the base, followed, at somewhat less than its length, by a smaller callosity bearing a prominent but slightly shorter fascicle, this followed, to about one-half its length, by a fascicle about one-half its size, thence with pustules to the apex; IV without pustules; V with a pustule near the base and with a distinct fascicle on a line between the first two fascicles on the third interval followed by pustules ; VII bearing the humeral callus which is slightly fasciculate and followed by several pustules. Legs very densely squamose and with stout, erect setae showing through ; femora rather stout and not conspicuously clavate. Sternum with the pectoral canal terminating as a V-shaped notch in the metasternum at the hind margin of the metacoxae, the V-shaped emargination overhanging and making the metasternal receptacle cavernous; metastemum with an impressed line just behind the anterior margin. Venter minutely reticulate, not conspicuously punctate; the hind margin of the first ventrite sinuous and con- cavely indented at the middle. Length, 4.2 mm.; breadth, 2 mm. Fiji: Viti Levu. Holotype female, one paratype and one abraded specimen collected from dead branches at Nandarivatu, Tholo North, October 20, 1937, by Dr. J. M. Valentine, in Bernice P. Bishop Museum, and two paratypes collected by Mr. H. W. Simmonds at “Colo-i-suva, VIII-2-28, C 388” to be de- posited in the British Museum. OCT. 1938] CAZIER— A NEW POLYPHYLLA 161 A NEW CALIFORNIA POLYPHYLLA WITH NOTES CONCERNING THE VARIABILITY OF CERTAIN CHARACTERS WITHIN THE GENUS ( Coleoptera — ScarabEeidse ) BY MONT A. CAZIER University of California, Berkeley I wish to express my thanks to the following friends for assistance and loans of material in this group: Dr. E. G. Van Dyke, E. P. Van Duzee, J. J. du Bois, A. T. McClay, E. S. Ross, 0. H. Schwab, K. L. Maehler, Hugh B. Leech, R. P. Allen and E. R. Leach. Polyphylla barbata Cazier, new species Relatively small, robust; head black, clypeus rufous, elytra dark blackish-brown; head, clypeus and pronotum densely clothed with long brown hair, elytra sparsely clothed with long brown hair. Head densely, shallowly punctate, punctures separated by only one-third to one-fifth their own widths ; entire surface densely clothed with long brown hair; margins around eye and clypeal suture rather densely clothed with elongate, pointed squamae, middle of front devoid of squamae; clypeus densely, shallowly punctate, feebly concave, side margins narrowed at base, expanded to apical angles which are rounded, apical margin transverse, slightly prominent medially, surface densely clothed with long brown hair, margins somewhat densely clothed with uniform elongate, pointed squamae, middle portion devoid of squamae; maxillary palpi with third segment the same length as first, longer than second, bluntly pointed on inner side, without impression; antennal club three times as long as funicle, about twice as long as head. Pronotum about twice as long as head, and about twice as wide as long; side margins serrate, obtusely angulate at middle; quite closely, shallowly punctate, punc- tures separated by about their own widths, a long brown hair arising from anterior side of each puncture; median depressed line densely clothed with elongate pointed white squamae; oblique sub- lateral basal vittae sparsely, irregularly clothed with elongate, pointed white squamae; side margins sparsely clothed with elongate, pointed yellow squamae, remainder of surface with only an occasional isolated elongate squama, basal margin densely clothed beneath with long yellowish-brown hair. Scutellum with median and lateral vittae composed of short, narrow squamae. Elytra three times as long as pronotum, widest at apical third; surface slightly rugose, ornamented with three irregular, more 162 THE PAN-PACIPIC ENTOMOLOGIST [yOL. XIV. NO. 4 or less broken, discal vittae and sutural stripe, besides the short vittae which extend from the humeral umbones and are continued posteriorly in the form of disconnected spots; squamae of the vittae white, one-third as wide as long, those of the interspaces yellow, narrower, more pointed and less dense than those of the vittae; entire surface uniformly, sparsely clothed with long brown hairs which are most abundant on humeri. Anterior tibiae bidentate, all tarsi shorter than the tibiae; thoracic sternites densely clothed with long brown hair; basal abdominal sternites black, apical one and one-half segments dark brown, sparsely clothed with white squamae except along posterior margin of each segment where they are more densely arranged; long brown hair uniformly, sparsely scattered over all segments; pygidium uniformly clothed with short brown hair. The slender yellow scales are more dense in the middle and at base, sparse laterally. Male genital seg- ment sinuate just posterior to the narrowly expanded tip, cleft for less than one-half its length. Length 20 mm., width 9.7 mm. Holotype male in the author’s collection. Taken at Mt. Hermon, Santa Cruz Co., California, June 25, 1937, by Dr. J. J. du Bois to whom the author is greatly indebted for the privilege of studying and making known this distinct species. Ten designated male paratypes bearing the same data as the holotype, seven of which are deposited in the collection of J. J. du Bois and three in the author’s collection. Two male para- types collected at Mt. Hermon, California, July 7, 1922 (sand hills) in the collection of the California Academy of Sciences. The female is unknown. The series before me presents little in the way of variation except in color. One of the paratypes is light brown as in sohrina but does not vary from the type otherwise. All remain- ing paratypes are almost exact duplicates of the holotype. In Casey’s key (1914) to the species of North American Poljphjlla, harhata will key out with opposita from which it differs by its generally darker color, more robust form, longer antennae, shape of lateral margins of clypeus which are con- tracted at base in harhata, longer and more dense hair on the clypeus, head and pronotum, the presence of long brown hair on the elytra, the reduced number of scales on the clypeus, head and pronotum, the irregular sutural white line, the shorter tarsi and the smaller size. The type locality of opposita was given by Casey as “Oregon (a single example is so marked but per- OCT. 1938] CAZIER— A NEW POLYPHYLLA 163 haps erroneously)”. I have in my collection one male speci- men that matches the description of opposita in every detail but it was collected at Tuba City, Arizona, July 3, 1937, by Mr. R. P. Allen. From adusta, which is the next species to follow in Casey’s key, barbata can be distinguished by the presence of long hair, the bicolored squamae on the elytra, the smaller size, long antennal club, long and smooth last maxilary palpal seg- ment and by the male genitalia which are more dilated apically in barbata. When Fall’s key (1928) is used, barbata will key out with rugosipennis and sobrina, due to Fall’s use of the relative length of the antennal club prior to dijfracta and opposita. From rugosipennis it can at once be separated by its small size, more irregular elytral vittas, long hair on pronotum and elytra, shape of lateral margins of clypeus which are contracted basally in hirsuta, irregular distribution of squamae on pronotum and by the genitalia which is cleft for less than half its length. From sobrina it can be distinguished by its smaller size, narrower form, presence of long hair on pronotum and elytra, generally darker color, shape of clypeus which does not have the lateral margins contracted basally in sobrina., and the irregular elytral vittae. During the course of this study it has become apparent to the author that many of the characters used in separating groups and species in the keys are unreliable as specific or group dif- ferences and it is with this in mind that the following remarks on variability are given. These remarks are not made with the intent of disabling the existing keys or to reflect on the work of others but merely to point out to future workers that when based on long series of one species some of the characters are variable and should be used with care. No attempt will be made to construct new keys as the material at hand is insufficient. It is the author’s opinion that when a proper study is made a long series of each species will have to be available for study and it is hoped that the notes herein given will be of use in supplementing a study of this nature. In both Fall’s and Casey’s keys one of the primary char- acters used is the dentition of the anterior tibiae. The triden- tition is used to separate cavifrons and hammondi from the 164 THE PAN.?ACIFIC ENTOMOLOGIST [yoL. XIV. NO. 4 remainder of the species. Within a series of male hammondi from Patagonia, Arizona, there are numerous specimens that have no sign of the proximal tooth and others in which it is either slightly evident or prominent. Among the so-called bidentate species the males of arguta are frequently tridentate as has been shown by others. The presence or absence of erect hair on the disk of the pronotum is another character used to separate major divisions. In a moderately long series of rugosi- pennis that were all collected at the same time, under the same conditions and that were not rubbed there are specimens with evident long erect hair and others in which there is no sign of hair. This species does not, however, have many erect hairs so that it is not surprising that some should lack them com- pletely. In arguta the males sometimes have very definite erect hair on the disk which makes it very difficult to place this species since it is associated with those that do not have the hair. When the long erect hairs are as abundant as they are in harhata and hirsuta Van Dyke, I think there is little doubt as to their being specifically constant and of use both in defining the species and in a key. The squamose vestiture in this genus has been used in vari- ous ways. The size, shape, color and arrangement of the squamae has been used to separate certain species and is undoubtedly of some use in certain cases, but if a series of decimlineata from one locality is examined it will be found that the large squamae of the pronotum and elytra grade gradually into fine narrow squamae and then into hairs. This is true in a series from Davis, California, that are at hand. In Fall’s key one of the char- acters used to separate speciosa from decimlineata is that the short line of white scales behind the humeral umbone is con- tinued disconnectedly posteriorly in speciosa. In the set of decimlineata before me there are both males and females that have the line continued posteriorly. In one male specimen the vittae are obscured on the basal half of the elytra by an almost continuous mass of squamae occurring in the so-called inter- spaces. This gives the vittae a very ragged appearance and since other species show a good deal of variation along this line the regularity of the vittae should be used with care also. OCT. 1938] BLAISDELL— A NEW LISTRUS 165 A NEW SPECIES OF LISTRUS FROM THE SEQUOIA NATIONAL PARK, CALIFORNIA (Coleoptera: Melyridae) BY FRANK E. BLAISDELL, SR.i Listrus regalis Blaisdell, new species Form parallel-elongate to elongate-ovate, about three times as long as wide, moderately convex. Color black, shining with a mod- erate or slightly aeneous tinge, especially on the head and prono- tum; second antennal segment usually pale, the following three or four and distal part of tibiae and tarsi slightly rufo-piceous. Pubescence of superior surface cinereous, not dense, somewhat coarse and comparatively long. Maculation very noticeable, ely- tral macules large, vested with sparse and very inconspicuous brownish or black hairs, arranged as follows on each elytron: a parascutellar and a marginal humeral, the latter more or less con- nected with the post-basal at middle; a rather wide transverse median fascia with irregular edges, extending more or less widely along the suture about half-way to the albido-pubescent scutellum ; a subapical fascia variable in width and with zigzag edges, usually attaining the lateral margin and more or less' divided at middle; apical macule very variable as to size, frequently uniting with the one of opposite side and with the subapical fascia. Pale hairs of head few and scattered; those of the pronotum reduced to a mini- mum, the brownish hairs forming a large central clepsydriform macule and lateral vittse, which are more or less feebly defined, best observed when viewed obliquely. Pubescence of ventral sur- face slender, recumbent and more or less plumbeocinereous in color. Head comparatively small, about two-thirds wider than long before the post-ocular line. Frons plane, feebly and somewhat broadly impressed anteriorly each side of a small median tumes- cence at apex against the base of the obscurely defined epistoma; punctures well defined, discrete, rather dense, the intervals less than the width of the punctures, smooth or sparsely micro- rugulose. Eyes prominent. Antennae about as long as width of pronotum, length equal in the sexes and slightly different, feebly compressed apically; segment II oval and less than twice as long as wide; II to X inclusive equal in length; V larger, a little longer than wide, subtriangular and most prominent anteriorly, XI obovate and about one-half longer than wide. Pronotum moderate in size, about one-fourth wider than long, apex arcuato-truncate; sides more or less broadly arcuate, con- tinuously so with the apex, marginal serrules small and acute, ^ Stanford Medical School and Associate in Research, California Academy of Sciences, San Francisco, California. 166 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 fimbriae pale, moderate in length and directed arcuately backward; base broadly arcuate, lateral or humeral sinuations distinct, basal angles formed by the last marginal serrule; disk moderately strongly convex, rather less so antero-laterally, densely punctate, punctures well defined centrally and there the intervals are smooth, more or less equal to width of punctures and somewhat sparsely micro-rugulose, lateral third densely punctato-reticulate. Elytra not quite twice as long as wide, three times as long as the prothorax and more^ or less wider than the latter according to sex; base broadly emarginate between the humeri, the latter large, evenly arcuate and prominent; sides more or less parallel, rather parabolically rounded at apex. Disk moderately convex, slightly impressed laterally within the humeri, arcuately declivous later- ally, precipitous at the humeri, more gradually and evenly, arcu- ately declivous in apical one-third; densely and somewhat coarsely punctate, not obscured by the pubescence ; marginal fimbriae similar to those of the pronotum and shorter. Abdomen moderately convex. Metafemora not swollen nor arcuate, differing slightly in length in the sexes. Male. Parallel; sides of elytra very feebly arcuate, little wider than prothorax; subapical fascia conspicuous. Antenna a little stouter, distal five segments less compressed, more oval in section; second and third equal in length, the latter obconical and slightly prominent anteriorly near apex; fifth noticeably larger and more prominent anteriorly, about one-third longer than wide, sixth to the tenth inclusive quite equal in length. Abdominal segments II, III and IV equal in length, V a little longer, truncate at apex and not modified on the disk. Metafemora a little longer. Tibial spurs apparently all spiniform, the external not thickened. Female. Usually larger and ovate. Pronotum more convergent anteriorly. Elytra at base distinctly wider than the prothorax, widest behind the middle. Antennae slightly less heavy, distal five segments less thick in section; III slender, obconical, scarcely at all more prominent anteriorly near apex, VII to X inclusive more triangular. Abdominal segments II, III and IV equal in length, V a little longer and arcuate at apex. Measurements. (Types) Length 4-4.5 mm.; width 1. 5-2.0 mm. Holotype, male, No. 4694, and allotype, female. No. 4695, in the author’s collection. Museum of the California Academy of Sciences. Collected May 30, 1937, in Sequoia National Park, Tulare County, California, by John E. Blum of Piedmont, Cali- fornia. Nineteen paratypes: Five males, fourteen females; five in the author’s collection: three to be deposited in that of the Ameri- can Entomological Society of Philadelphia and eleven in that of Mr. Blum. OCT. 1938] BLAISDELL— A NEW LISTRUS 167 Regalis is a very elegant species, on account of the ashy-white pubescence and large black macules of the elytra, in these char- acters it resembles elegantulus Blaisdell. In the latter the fifth ventral abdominal segment of the male is modified on the disk, the antennae of the female much more slender than that of the male, the femora are more swollen and the metafemora longer, moderately and arcuately adapted to the sides of the body. In regalis the fifth ventral abdominal segment of the male is truncate at apex and not modified on the disk, in the female the antennae are but slightly more slender than those of the male, the metafemora are not swollen, shorter and not arcuate or feebly so. The types are of moderate size, the sexes vary in size. It is to be remembered that in the species of Listrus, not only do the individuals vary in size, but that the maculation varies by dif- fusion of the pale pubescence or by extension of the dark areas with more or less coalescence, according to the inherent char- acteristics of the species. One Hour’s Collecting of Scaphinotus on Whidby On May I, 1938, Mr. L. H. Duvall of Seattle, Washington, and the author collected forty-two specimens of Scaphinotus (Stenocantharus) angusticollis (Mann.) and fourteen Scaphi- notus {Brennus) marginatus (Fisch.) in a radius of about three hundred feet in and near the city park of Coupeville, Whidby Island, Washington. All specimens were collected within one hour and five minutes, between 1:30 p. m. and 2:35 p. m. All of these were found under boards and old logs, with the pos- sible exception of one specimen of Scaphinotus angusticollis which I believe was collected under a rock. A number, perhaps seventeen, of the Scaphinotus angusticollis and several Scaphi- notus marginatus were found under three large boards which were in contact with each other. It is very unusual to find such a number of Scaphinotus angusticollis under one lot of boards — the only time I have known of such an occurrence. The area in which these specimens were collected is nearly all rather open Douglas fir or predominating Douglas fir woods. Most of the specimens collected were in moist places under the logs and boards. — Robert Y. Pratt. 168 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 NOTES ON THE MEGACHILID SUBGENERA XEROMEGACHILE AND DEROTROPIS (Hymenoptera, Megachilidae)^ BY THEODORE B. MITCHELL Since the publications of Parts and of the revision of nearctic Megachile, a number of small collections have been received for determination, resulting in a number of additional records of several species, and the discovery of two previously unknown species. One of these new forms, in Derotropis, was recognized as such by Mr. P. H. Timherlake and sent to me for description, and he is also to be credited with some addi- tional information concerning the association of sexes in two species of Derotropis . Subgenus Xeromegachile Mitchell Megachile (Xeromegachile) angelica Mitchell California: 1^, Cajon Pass, April 13, 1936 (R. M. Bohart). 3 $ , Carrville, Trinity County, 2400-2500 feet. May 29-June 14, 1934 (G. E. Bohart and E. C. Van Dyke). 2S , Gold Lake, Sierra County, July 19 and August 4, 1921 (C. L. Fox). 1^, Palmdale, April 11, 1936 (G. E. and R. M. Bohart). 15, Shasta Springs, July, 1914 (C. L. Fox). 35, Ventura County, April 13, 1936 (G. E. and R. M. Bohart). Megachile (Xeromegachile) blaisdelli Mitchell California: 2$, Laguna, San Diego County, June 7 and 23, 1926 (W. S. Wright). 12, Laguna Mountains, June 29, 1921. 12, Mammoth, July 5, 1933 (G. E. and R. M. Bohart). 3 2, Mint Canyon, Los Angeles County, April 26, 1936 (E. G. Linsley, on Chaenactis glabriuscula) . 12, Trinity County, June 13, 1934 (G. E. and R. M. Bohart). Megachile (Xeromegachile) brimleyi Mitchell North Carolina: 15, 2 2, 10 mi. S. of Lillington, June 23, 1937 (Mitchell). Megachile (Xeromegachile) bruneri Mitchell California: 15, Owen’s Valley, Inyo County, August 2, 1936 (G. E. and R. M. Bohart). ^ Research Contribution No. 1, published with the aid of the State College Research Fund, Department of Zoology, North Carolina State College of Agri- culture and Engineering of the University of North Carolina. ^ Trans. Am. Ent. Soc., LXII, 117-166, 1936. 3 Op. cit., 323-382, 1937. OCT. 1938] MITCHELL— MEGACHILE 169 Megachile (Xero megachile) casad.®: Cockerell Colorado: 1^, 1$, Poudre Canyon, June 9, 1934 (M. K. Maehler). Texas: 2$, Austin, May 8, 1901 (A. L. Melander). Utah: 1^, St. George, May 27, 1935 (E. C. Van Dyke). Megachile (Xeromegachile) dakotensis Mitchell Illinois: 1$, August 1, 1898 (nOi locality given) (A. L. Melander) . Minnesota: 1$, Anoka County, June 24, 1933 (E. C. Murdock). Nebraska: 2$, 1$, Harrison, July 2, 18, and 19, 1936 (J. Player). Megachile (Xeromegachile) deflexa Cresson North Carolina: 3$, 10 mi. S. of Lillington, June 23, 1937 (Mitchell) . Megachile (Xeromegachile) fucata Mitchell Arizona: 2$, Tucson (A. Koebele). Megachile (Xeromegachile) hilata Mitchell California : 1 $ , Glacier Lodge, Big Pine Creek, Inyo County, 8,000-11,000 feet, August, 1929 (Isabel McCracken). 1$, Hat Creek, Mono County, August 1, 1936 (G. E. and R. M. Bohart). Utah: 1$, Logan, July 20, 1931 (W. Thomas). Megachile (Xeromegachile) histrata Mitchell California: 1$, Palm Springs, Riverside County, April 9, 1936 (on Larrea glutinosa). Colorado: 1$, Livermore, July 15, 1900. Megachile (Xeromegachile) Integra Cresson Illinois: 2$. (No locality given) (A. L. Melander). North Carolina: 1$, 13$, Carolina Beach, August 7 and 10, 1937. 1 (J , 1 $ , 10 mi. S. of Lillington, June 23, 1937 (both Mitchell). Megachile (Xeromegachile) legalis Cresson Colorado: 1 (J , Lump Gulch, near Gilpin, August 8, 1934 (H. G. Rodeck) . Megachile (Xeromegachile) manifesta Cresson California: 1$, Carson Pass, 8,000 ft.. Sept. 2, 1934. Colorado: 2$, Fort Collins, Sept. 21, 1930 and Oct. 5, 1935. 170 THE PAN-PACIFIC ENTOMOLOGIST [yoL. XIV. NO. 4 2$, 6$, Masonville, Sept. 5 and 6, 1934. 1$, Vir. Dale, Aug. 2, 1935 (all M. T. James). Wyoming: 3 2, Cheyenne, Aug. 6, 1931. Megachile (Xeromegachile) micheneri Mitchell California: 3^, San Diego. (S. D. Nat. Hist. Mus.) Megachile (Xeromegachile) moschata Mitchell California: 12, Laguna, San Diego> County, June 7, 1928 (W. S. Wright). 2 2, Laguna Mountains, June 29, 1921. 12, Mint Canyon, Los Angeles County, Apr. 26, 1936. (E. G. Linsley, on Chsenactis glabriuscula) . 3 2, no data. Megachile (Xeromegachile) mucorosa Cockerell Colorado: 1 $ , Larimer County, July 19 (M. T. James). Megachile (Xeromegachile) nevadensis Cresson California: 3$, 32, Antioch, Contra Costa County, Sept. 6, 9 and 13, 1936 (E. C. Van Dyke and R. M. Bohart). 1^, Carson Pass, Sept. 3, 1933 (G. E. and R. M. Bohart). 1$, Hay Creek, Mono County, Aug. 1, 1936, 1 $ Lake City, Modoc County, Aug. 2, 1922 (C. L. Fox). 4 (J , Mammoth, Mono County, Aug. 7, 1936 (G. E. and R. M. Bohart). 1 2, near Oakley, Contra Costa County, Sept. 6, 1936 (E. C. Van Dyke). 1^, Owen’s Valley, Inyo County, Aug. 2, 1936 (G. E. and R. M. Bohart). 5 2, San Diego. (S. D. Nat. Hist. Mus.). Idaho. 1 $ , Ridgedale, Aug. 23, 1915. Oregon: 2$ , 10 mi. E. of Prineville, Aug. 20, 1937 (Bolinger- Jewett) . Washington: 12, Yakima (A. L. Melander). Megachile (Xeromegachile) parksi Mitchell Texas: 12, May. 12 Austin (both A. L. Melander). Megachile (Xeromegachile) pseudonigra Mitchell California: 12, Midway, May 24, 1936 (M. Cazier). 2 2, Mint Canyon, Los Angeles County, Apr. 26, 1936 (E. G. Linsley, on ChsBnactis glabriuscula). Megachile (Xeromegachile) rubi Mitchell North Carolina: 2$, Raleigh, May 9, 1937 (Mitchell). Megachile (Xeromegachile) subnigra Cresson Oregon: 12, Cornucopia, 7100 ft., July 25, 1936. 1$, 25 OCT. 1938] MITCHELL— MEGACHILE 171 mi. E. of Prineville, 3800 ft., July 13, 1936 (both H. A. Scullen). 1$, Steen Mountains, Harney County, June 25, 1922 (E. C. Van Dyke). Washington: 1$, Grand Coulee, Coulee City, June 25, 1902, 3$, Lind, June 1, 10 and 12, 1919 (F. W. Carlson). 1^, Pull- man, May 21, 1921 (Walter Herreid). Megachile (Xeromegachile) wheeleri Mitchell California: 1^, Antioch, Sept. 6, 1936 (G. E. Bohart). 12, Bird Lake, Tulare County, Aug. 21, 1933 (Isabel McCracken). 1^, Buck Creek, Modoc County, July 21, 1922 (C. L. Fox). 1^, 6 2 , Diamond Lake, Douglas County, Oregon, 5182 ft., Aug. 24, 1937. 1 S , near Harden Lake, Yosemite Park, July 20, 1930 (E. C. Zimmerman). 1^, 12, Lick Creek, R. S. Wallawa Nat. For. Ore., 4600 ft., Aug. 16, 1937. 1 ^ , 12, Mineral King, Aug. 2, 1935 (G. E. Bohart). 2$, Spark’s Lake, Deschutes Nat. For. Ore., 4800 ft., Aug. 21, 1937 (all Bolinger- Jewett). 12, Tioga Pass, 10,000 ft., Aug. 2, 1931 (E. R. Tinkham). North Dakota: 12, Dickerson, July 20, 1936. 12, Garrison, Aug. 17, 1935 (both H. S. Tolford). Oregon: 2$, Mt. Hood, 3000-6000 ft., Aug. 6, 1925 (C. L. Fox). 12, Seneca, July 24, 1935 (Joe Schuh). 3^, 12, Steen Mountains, Aug. 6, 1936 (S. Jewett, Jr.). 1$, Strawberry Lake to Slide Lake, Grant County, 6800-7000 ft., July 16, 1936 (H. A. Scullen) . Washington: 22, Hells Crossing Forest Camp, Yakima County, July 27, 1936 (E. C. Van Dyke). Megachile (Xeromegachile) couleeana Mitchell, n. sp. Female. Size: Length 14 mm.; breadth of abdomen 5 mm.; anterior wing 10 mm. Structure: Face very slightly broader than long; eyes sub- parallel; clypeal margin straight and entire medially; mandible 4-dentate; basal joint of flagellum very slightly longer than the pedicel or the second joint which are subequal; lateral ocelli sub- equally distant from eyes and edge of vertex; vertex slightly in- curved, slightly convex; cheeks very slightly broader than eyes; metatarsi only slightly shorter and narrower than their respec- tive tibiae; abdomen broad, second to fourth terga grooved basally, fifth not grooved, sixth straight in profile, with no visible erect hairs. Puncturation : Close and fine on vertex, cheeks, supraclypeal area and clypeus above; slightly more coarse on clypeus below, the margin impunctate, shallow and indistinct on cheeks ; fine 172 THE PAN-PACIFIC ENTOMOLOGIST [yoL. XIV. NO. 4 on dorsum of thorax, definitely separated in center of mesonotum and scutellum, the surface tesselate and dull, slightly more coarse and close on pleura, becoming still more coarse toward sternum; minute and indistinct on abdomen basally, becoming more definite and rather widely separated to the shining fifth tergum, fine and crowded on the sixth, but obscured by the tomentum. Color : Black, antennae beneath, tegulae and legs dark reddish- fuscous ; wings fusco-hyaline, slightly darker apically, with brown- ish-ferruginous nervures; spurs yellowish-ferruginous. Pubescence: Entirely pale, white on sides and below, more cream-colored above, with no visible dark hairs on vertex, thorax or abdomen (dorsum of thorax mostly denuded) ; first to fifth abdominal terga with entire white apical fasciae, the sixth entirely covered with subappressed whitish tomentum which largely hides the surface; scopa entirely white except for a few short golden hairs apically. Type, female; Soap Lake, Grand Coulee, Washington, June 29, 1902 (Wash. State College). In my key to the species of Xeromegachile this runs to either rubi or hilata. The peculiar ridged sixth tergum of the eastern species rubi at once distinguishes the two, while hilata differs in the presence of erect pubescence on the sixth tergum, the presence of dark pubescence on vertex, mesonotum and abdom- inal terga, as well as in other less conspicuous characters. Subgenus Derotropis Mitchell In the revision of the subgenus Derotropis^, two species, astata 9 and pascoensis ^ , were associated because of the belief that they represented the two sexes of one species. Further col- lecting by Mr. Timberlake, who originally suggested the asso- ciation, has caused him to regard this as an error. He finds in his collecting that gravita S and gabrielensis 9 are also in- volved, and that apparently astata should be associated with gravita, and gabrielensis with pascoensis. He notes a structural similarity between the respective males and females thus asso- ciated in that the relative lengths of the first and second joints of the labial palpi are the same in the two sexes in each case, and finds also that the mesosternum of astata is slightly con- cave and sparsely punctate, suggestive of the more extreme con- dition of the mesosternum of gravita. Since corresponding with Mr. Timberlake, I have carefully measured the labial palpi of these forms and find the ratio of OCT. 1938] MITCHELL— MEGACHILE 173 the first to the second joint of the labial palpus in both gravita and astata to be approximately 70:98, while in both pascoensis and gabrielensis it is 60:85. This structural evidence, coupled with the fact that these respective sexes can be associated in the field indicates rather conclusively that this association is the correct one. Megachile (Derotropis) pascoensis Mitchell Megachile (Xeromegachile) 'pascoensis Mitchell, Trans. Am. Ent. Soc. LIX, p. 320, 1934. Megachile {Xeromegachile) gabrielensis Mitchell, Trans. Am. Ent. Soc. LIX, p. 346, 1934. Megachile {Derotropis) pascoensis Mitchell, Trans. Am. Ent. Soc. LXII, p. 162, 1936. Megachile {Derotropis) gabrielensis Mitchell, Trans. Am. Ent. Soc. LXII, p. 159, 1936. California: 1$, Altadena, May 2, 1936 (Michener, on Lotus scopari'us). B$, Antioch, Apr. 25, 1936 (M. Cazier). 1$, Mid- way, May 24, 1936 (M. Cazier). 2$, Mineral King, July 31, 1935 (G. E. and R. M. Bohart). Megachile (Derotropis) gravita Mitchell Megachile {Xeromegachile) gravita Mitchell, Trans. Am. Ent. Soc. LIX, p, 322, 1934. Megachile {Xeromegachile) astata Mitchell, Trans. Am. Ent. Soc. LIX, p. 345, 1934. Megachile {Derotropis) gravita Mitchell, Trans. Am. Ent. Soc. LXII, p. 160, 1936. Megachile {Derotropis) pascoensis 2 Mitchell, Trans. Am. Ent. Soc. LXII, p. 162, 1936. California: 2 2, Lagunitas, July 15, 1928 (E. P. Van Duzee). 1 $ , Midway, May 24, 1936. 1 $ , Nipinnawasee, May 24, 1936 (both M. Cazier). 12, Potwisha, Sequoia Nat. Park, 2000-5000 ft.. May 20, 1929 (E. C. Van Dyke). Oregon: 32, Prospect, June 20, 1924 (C. L, Fox). Megachile (Derotropis) alamosana Mitchell Colorado: 1 $ , White Rocks, Valmont, June 30, 1934 (M. and H. James). 1^ , Longmont, July 4, 1937 (L. Lanham). Megachile (Derotropis) laurita Mitchell Washington: 12, Asotin, May 20, 1923 (V. Argo). 174 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 Megachile (Derotropis) laurita var. semilaurita Mitchell Utah: 12, Dolomite, May 18, 1934 (G. F. Knowlton). Megachile (Derotropis) subanogree Mitchell Texas: 1$, Sierra Blanca, Apr. 30, 1927 (J. 0. Martin). Megachile (Derotropis) xerophila Cockerell California: 3^, 4 2, Edom, Riverside Co., Mar. 28, 1936 (on Geraea canescens and Larrea glutinosa) .4^,2 mi. S. of Edom, Mar. 8, 1936 (on Geraea canescens). 1$,Q mi. S. of Edom, Mar. 8, 1936 (on Larrea glutinosa, all E. G. Linsley). 1^,5 mi. S. of Indio, Apr. 10 (Michener, on Prosopis juliflora) . 1 $ , Little Rock, Oct. 10, 1936 (G. E. and R. M. Bohart). 12, Palm Springs, River- side Co., Apr. 10, 1936 (Michener, on Cercidium torreyanum) . On page 165 of the revision^ xerophila is recorded on Helian- thus niveus. Mr. Timberlake states that this plant was misidenti- fied, the correct name being Geraea canescens. Megachile (Derotropis) astragali Mitchell, new species The male of this species is the only one so far known in Derotropis with entirely simple anterior tarsi, and it differs also from the other males in the group in the lesser degree of specili- zation of the retracted fifth sternum. In the males of gravita, pascoensis, and others the fifth presternite has a conspicuous median spine-like apically directed protuberance which more or less fits into an emargination of the basal margin of the meta- sternite. This condition is entirely lacking in astragali, indi- cating, together with the simple front tarsi, that it is the least specialized of all the known species in the group. The female runs to subanogree in the key\ but differs from that species in the presence of pale pruinosity on the sixth ter- gum, as well as in other less evident details. The second joint of the labial palpus is one and a half times the length of the basal joint in both sexes. Male: Length 8 mm.; breadth of abdomen 3 mm.; anterior wing 6 mm. Structure : Face slightly broader above than long ; eyes slightly OCT. 1938] MITCHELL— MEGACHILE 175 convergent below; clypeal margin straight and entire; inferior projection of mandible subbasal, narrowly triangular; basal joint of flagellum narrower and slightly longer than the subequal pedi- cel and second joint, the remaining joints broader, only slightly longer than broad; lateral ocelli very slightly nearer to edge of vertex than to eyes; vertex nearly flat; cheeks broader than eyes; front coxal spines short, broad basally, triangularly acute, a small patch of short red bristles at base of each; front tarsi simple; hind metatarsus only half as long and broad as its tibia, the apical joint nearly as long as the metatarsus; apical margins of abdom- inal terga slightly depressed; carina of sixth tergum broadly rounded, with two or three slight irregular crenulations, the median carinate teeth of the apical margin of the tergum widely separated, close to the subacute lateral teeth; seventh tergum broad and quite robust, triangularly pointed medially. Sternites : Lateral portions of fifth presternite triangular, broader than long, median portion linear in the much restricted central area, not at all protuberant, the apical sclerites nearly circular, covered in part with fine pubescence, metasternite rather widely separated from the presternite by a broad membraneous area, basal margin evenly rounded, entire, lacking any median emargination, uniformly covered with short apically dilated setae, poststernal stripe inconspicuous, the margin slightly incurved medially; lateral portions of sixth presternite much longer than broad, metasternal areas triangular, rather widely separated medially, uniformly covered with short apically flexed and dilated setae, prosternal lobe nearly twice as broad as it is long, the margin slightly incurved, lateral angles subacute. Genital armature: Stipites rather slender, gradually and slightly enlarged to the tip, the tip with a thin tuft of short pubes- cence; sagittae slightly exceeding the stipites in length; volsellae narrowed apically, the tips truncated. Puncturation : Moderately coarse and distinct, but quite close on vertex medially and on cheeks, more sparse on vertex laterally, very fine and close on face and clypeus; close and deep on pleura and on mesonotum laterally, becoming sparse medially on meso- notum and scutellum, the surface polished; fine and close on the basal abdominal tergum and on the median terga laterally, but sparse and indistinct on discs medially, the surface polished, more coarse on the fifth, dense on the sixth medially, more sparse laterally. Color: Black; anterior face of front femur ferruginous, legs otherwise black, claws and spurs ferruginous; tegulae pale fer- ruginous, anterior portion blackened; wings hyaline, violaceous, nervures fuscous to ferruginous. 176 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 4 Pubescence: Entirely white, long and dense on face and on cheeks below, long and quite copious on vertex and thorax; thin on abdominal terga, but with white apical fascise on all the seg- ments, these thin on the more basal ones; tarsi beneath with brownish-ferruginous pubescence. Female. Size: Length 9 mm.; breadth of abdomen 3 mm.; anterior wing 6 mm. Structure: Face about as broad as long; eyes nearly parallel; clypeal margin outcurved, median portion straight, entire; man- dible with two distinct apical teeth, cutting edge to the inner angle rather short (compared with gabrielensis ) ; joints of flagellum about as broad as long, the basal one slightly longer; lateral ocelli very slightly nearer to edge of vertex than to eyes; vertex about flat; cheeks somewhat broader than eyes; all the meta- tarsi considerably shorter and narrower than the respective tibiae; abdominal terga only slightly depressed apically, the second to fourth more deeply depressed basally, the sixth straight in pro- file, the sides straight in dorsal aspect, the apex rather narrowly rounded. Puncturation : Deep and distinct, but close on vertex medially, cheeks above, pleura above, and mesonotum laterally, more sparse on vertex laterally, cheeks and pleura below, and on scutellum, quite sparse on mesonotum medially where the surface is polished ; coarse, deep and distinct on clypeus, close and fine along' upper margin, quite fine and close on face above clypeus; close and fine on basal and apical abdominal terga, and on the others laterally. Male sex characters of Megachile (Derotropis) astragali n. sp. Fig. 1. Fifth sternum. Fig. 2. Sixth sternum. Fig. 3. Eighth sternum. Fig. 4. Ventral, dorsal and lateral views of genital armature. OCT. 1938] MITCHELL— MEGA CHILE 177 but the discs of the median terga with fine, sparse and rather indistinct punctures medially. Color: Black; spurs and claws ferruginous; tegulae pale fer- ruginous, a small anterior portion blackened; wings hyaline, vio- laceous, nervures piceous. Pubescence: Entirely white on head, thorax, first and second abdominal terga and legs except for under side of tarsi where it is brownish; black on discs of third, fourth and fifth terga, the first to the fifth with entire dense white apical fasciae, the sixth covered with thin silvery pruinose hairs, with no dark hairs in evidence; scopa white, entirely black on fifth and sixth sterna. Type. Male: Mojave Desert, 9 miles north of Adelanto, San Bernardino County, California, April 20, 1937 (C. M. Dammers, on Astragalus lentiginosus var. fremontii). Allotype: Female, topotypical. Paratypes : 3 ^ , topotypical. Longevity in the Cerambycid.®:. Scattered through entomological literature are a few brief accounts of adult Cerambycidae emerging from wood which had been made up into furniture for several years. Since the im- mature forms of the majority of longicorns require a bark cov- ering during their early life history, this is generally interpreted as evidence that larvae were in the wood prior to its manufacture as furniture. Unfortunately, there are very few statements as to the actual period of time involved, and, where native species were involved, perhaps some uncertainty as to when they entered the wood. It would therefore seem of interest to report that Mr. P. C. Ting has recently submitted for determination adults of Stromatium fulvum Villers, a European species, which had emerged from furniture brought to this country from Italy in 1925. An investigation revealed that several benches imported in a single lot had been distributed to various places in San Francisco. Apparently nearly all of the benches were infested and adults emerged in October 1935, July 1937, and August 1938, with larvae still present in some numbers. This furniture had been newly manufactured just prior to its export from Italy in 1925 and it seems quite clear that the larvae must have been in the wood for periods of ten, twelve, and thirteen years, respec- tively. — E. Gorton Linsley. 178 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 PHOTOPSOID MUTILLIDS COLLECTED BY DR. K. A. SALMAN AT EAGLE LAKE, CALIFORNIA. (Hymenoptera) * BY CLARENCE E. MICKEL University of Minnesota Dr. K. A. Salman, Berkeley, California, had the unusual experience of observing a flight and the mating of a species of Photo psis at Eagle Lake, Lassen National Forest, Lassen County, California, July 30 and 31, 1936. He collected several pairs in copulation and a series of both males and females. The material was sent to me for study and proved to be a new species, the male closely related to pedatus Baker and the female to pygmaea Blake. Baker’s type of pedatus has been available for comparison. One specimen of a second species of male, Odontophotopsis, and three specimens of a second female were also collected, but not in copula. It is probable that this sec- ond male and female are the two sexes of one species, but since this is not certain they are described separately. I am pleased to acknowledge my appreciation to Dr. Salman for the privilege of studying and describing this material. Photopsis salmani Mickel, n. sp. Male. Ferruginous throughout, except the scape yellow, the flagellum fuscous, the integument beneath felt lines of second tergite black, and the legs only slightly paler than the body, almost concolorous; clothed throughout with pale, sparse, erect hairs, except the front, vertex, mesonotum, scutellum and second abdo- minal tergite with the hairs very pale ferruginous; second tergite with a thick fringe of pale, plumose hairs at the posterior margin, the remaining tergites with thin fringes of similar hairs; man- dibles edentate at the tip and with two small teeth just within from the tip, with a strong carina the entire length on the dorsal surface, strongly emarginate beneath, forming a blunt tooth subtending the emargination proximally; clypeus considerably depressed below the dorsal surface of the mandibles, its sur- face slightly concave, the posterior margin without a median tubercle; scape shallowly punctate, with a weak, longitudinal carina anteriorly; first segment of flagellum four-fifths the length of the second; antennal scrobes carinate on the inner half, with a small, transverse tubercle slightly anterior to the outer end of *Paper No. 1612 of the Scientific Journal Series of the Minnesota Agricul- tural Experiment Station. OCT. 1938] MICKEL— PHOTOPSIDS 179 the Carina; front with a shallow, median sulcus extending from a small pit anterior to the median ocellus to a point between the antennal tubercles; front, vertex and gense with small, sparse punctures; ocelli large, the distance between the eye margins and the lateral ocelli equal to about one and one-half times the greatest diameter of the latter; lateral areas of pronotum distinctly reti- culate, the median area with moderate punctures ; mesonotum with parapsidal furrows distinct their entire length, and with moderate, separated punctures throughout; scutellum coarsely reticulate, the meshes small; enclosed area of dorsum of propodeum consisting of a pair of elongate, subovate areas, each area about twice as long as wide; dorsum of propodeum evenly rounded into the posterior face and both broadly, distinctly reticulate except the enclosed area, the meshes large; propleurse not defined anteriorly by a carina, rugoso-punctate ; ventral area of mesopleurse distinctly reticulate; dorsal area of mesopleurse with small, sparse, weak punctures, except the posterior margin behind the ridge closely, moderately punctate; metapleurse glabrous, impunctate; sides of propodeum glabrous, weakly, indistinctly reticulate; mesosternum entirely un- armed ; tegulse small, convex, glabrous, impunctate, except the inner margin punctate and with ferruginous pubescence; first abdominal segment long, about two-thirds the length of the hind femora; first tergite strongly punctate, the punctures moderately large, close but distinct medially, becoming closer and confluent laterally; second tergite glabrous, with small, very sparse punc- tures; remaining tergites weakly punctate, the punctures small and shallow; pygidial area not margined laterally, glabrous, very weakly aciculate, the tergite with a thick fringe of pale, short hairs at its posterior margin; median, longitudinal carina of first sternite crenulate; second sternite with moderate, indistinct, sepa- rated punctures and with short, vestigial felt lines laterally; remaining sternites with small, weak punctures; wings subfuscous on the distal half; length of cell 2nd R^ + Rg on the costal mar- gin equal to the length of the stigma; cell Rg receiving vein one-third the distance from base to apex; cell R^ obsolete; vein Mg obsolete; vein m-cu anterior to vein M^+Cu^^ on vein CUj; calcaria ferruginous. Length, 13 mm. Female. Entirely ferruginous, the legs concolorous with the body; head clothed with sparse, pale, recumbent and erect pubes- cence, except the vertex posteriorly with sparse, golden ferrugi- nous pubescence; thorax clothed with sparse, long, pale pubescence, except the dorsum with sparse, golden ferruginous pubescence; abdomen clothed with sparse, pale pubescence, except the second tergite excluding narrow lateral areas, with sparse, golden fer- ruginous pubescence, and all the segments above and beneath, excepting the first sternite, with thick, posterior, marginal fringes of pale, plumose hairs; head distinctly narrower than the thorax, rounded posteriorly; mandibles slender, edentate at the tip and 180 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 with a small tooth within, strongly excised beneath near the base forming a blunt tooth subtending the excision; antennal tubercles distinctly, but not widely, separated; first segment of flagellum slightly shorter than the second and third united, the second dis- tinctly shorter than the third; antennal scrobes distinctly cari- nate above; front, vertex and genae with moderate, very close punctures, the puncturation more or less obscured by the pubes- cence; distance between posterior margin of eyes and postero- lateral angles equal to somewhat less than half the greatest diameter of the eyes; thorax as long as broad, slightly narrowed at thei propodeal spiracles and behind; humeral angles not promi- nent; dorsum of thorax with very dense, confluent, moderate punc- tures, becoming subscabrose on the dorsum of propodeum; pos- terior face of propodeum with moderate, distinct punctures on the disk; scutellar scale absent; propleurae glabrous, impunctate, except the dorso-ventral ridge broad, densely punctate, with very long, erect, pale hairs; metapleurae glabrous, except punctate ven- trally; sides of propodeum with moderate, shallow, indistinct punctures; first abdominal segment very small, short, distinctly constricted from the second; first tergite densely punctate; sec- ond tergite with moderate punctures, dense and confluent on the anterior fourth, close on the lateral fourths, separated and shallow on remainder of tergite; tergites three to five with small, distinct punctures; pygidial area very large, covering nearly all of last tergite, distinctly margined laterally, distinctly strongly granu- late throughout, with an obscure appearance of 'longitudinal striations in certain lights; first sternite elevated along the longi- tudinal median line, but not distinctly carinate; second sternite with a low, median, longitudinal ridge on the anterior third, with moderate, distinct, close punctures; stemites three to five with small, distinct, close punctures ; legs clothed with long, pale hairs ; calcaria ferruginous. Length, 7 mm. Holotype. Male, Cat. No. 52781 United States National Museum, Coll. No. 36-7, Eagle Lake, Lassen County, Cali- fornia, July 30, 1936 (K. A. Salman), {in copula with allo- type). Allotype: female. Coll. No. 36-7, Eagle Lake, Lassen County, California, July 30, 1936 (K. A. Salman). Paratypes; five males, five females [in copula). Coll. No. 36-7, Eagle Lake, Lassen County, California, July 30, 1936 (K. A. Salman) ; seventeen males, forty-nine females. Coll. No. 36-8, Eagle Lake, Lassen County, California, July 31, 1936 (K. A. Salman), in collections of United States National Museum, University of Minnesota and K. A. Salman. OCT. 1938] MICKEL— PHOTOPSIDS 181 Dr. Salman’s notes, made at the time the specimens were collected, are as follows: “Coll. No. 36-7; Eagle Lake, Lassen National Forest, Lassen County, California, July 30, 1936. Sandy beach on north shore of lake. Strong wind blowing from southwest. Time of collec- tion from just before sunset to dusk — 6 to 8 p. m. Many females crawling over sand, occasionally digging into loose sand. Seemed to prefer margins of patches of low grass or small open sandy spots. Few found actually within the larger patches of grass. Males on ground and in flight in large numbers. They fly low over ground and approach towards females from windward, sev- eral usually flying into the wind in the vicinity of each female. One usually comes on female and copulates, the act taking only a few seconds. The other males remain around but I observed no second copulation by another male and the same female. Six pairs taken in the act of copulation. The attachment of the pair is quickly broken when they are disturbed. Coll. No. 36-8; Eagle Lake, Lassen National Forest, Lassen County, California, July 31, 1936. Same species as in Coll. No. 36-7 in flight and crawling on ground. Much less abundant than on previous evening although time about the same. August 1, 1936, 1 to 3 p. m. Bongberg and Eaton noted neither males nor females in evidence at this time of day although Dasymutilla pacifica var. aureola present on hot sand. August 4, 1936. No flight occurred on this date late in the afternoon although conditions about the same as on July 30 and 31. Apparently period of flight is short.” The male is closely related to pedatus Baker described from southern California, but differs as follows: clypeal tubercle (a small, blunt, median tubercle on the posterior margin of clypeus in pedatus) absent, legs ferruginous, almost concolorous with the body (in pedatus, legs yellow, much paler than the body), distal half of wings subfuscous (in pedatus, tinged with yellow, subhyaline), and mandibles distinctly broader distally than at narrowest point of emargination (in pedatus, not noticeably broader distally than at narrowest point of emargination). The felt lines on the second sternite of many of the male paratypes are so vestigial that they appear to be absent. The Baker types of Photopsis have been available for study and comparison with the type material of salmani; the following couplets may be used to separate pedatus Baker, ingenuus Baker (very closely related to pedatus) and salmani: 1. Posterior margin of clypeus with a median, blunt tubercle; legs yellow, paler than the body; wings subhyaline 2 182 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV, NO. 4 Posterior margin of , clypeus not elevated medially, not tuber- culate; legs ferruginous, concolorous with the body; wings subfuscous salmani n. sp, 2. Clypeal tubercle small, obscure; ventral area of mesopleurae shallowly, indistinctly punctate ingenuus Baker Clypeal tubercle moderate, distinct; ventral area of meso- pleurse distinctly reticulate pedatus Baker The female is related to pygmaea. No specimens of the latter species are available for comparison at the present time and the description of pygmaea is not very helpful in indicating dif- ferences between the two. Pygmaea is said to have white, erect pubescence on the dorsum of the thorax and abdomen, while salmani is conspicuously golden ferruginous pubescent on the posterior part of vertex, and on the thorax and abdomen above. The type of pygmaea is in the collections of the American Ento- mological Society and bears a locality label, “Boulder, Colo- rado.” Odontophotopsis atripes Mickel, n. sp. Male. Ferruginous, except the femora, tibiae and tarsi very dark, almost black, and the flagellum blackish; clothed through- out with sparse, erect, pale hairs, the hairs on the front, vertex, pronotum, mesonotum, scutellum, and abdominal tergites tinged with golden ferruginous; second abdominal tergite with a dis- tinct, posterior marginal fringe of pale, plumose hairs, the remain- ing tergites without fringes; head slightly narrower than the thorax; mandibles with a distinct dorsal carina extending their entire length, edentate at the tip and apparently with two small teeth near the tip, distinctly excised beneath, a distinct, blunt tooth subtending the emargination; clypeus slightly concave, dis- tinctly depressed below the dorsal margin of the mandibles, the posterior margin not tuberculate medially; antennal tubercles distinctly, but not widely, separated; scape moderately punctate, with a single, longitudinal carina anteriorly; first segment of flagellum about four-fifths the length of the second; antennal scrobes not carinate above, but with a small, distinct tubercle nearer to the antennal tubercles than to the eyes; front with a small pit in front of the median ocellus and a shallow sulcus extending forward from it to between the antennal tubercles; front, vertex and genae with small, very sparse punctures; ocelli moderate in size, the distance between the lateral ocelli and the eyes equal to twice the greatest diameter of a lateral ocellus; lateral areas of pronotum with moderate, close punctures, the median area almost impunctate; parapsidal furrows complete OCT. 1938] MICKEL— PHOTOPSIDS 183 from anterior to posterior margins of mesonotum; mesonotum with moderately small, sparse punctures; scutellum with mod- erate, very close, almost dense punctures; enclosed area on dorsum of propodeum composed of a pair of long, narrow areas, each about five times as long as broad, and flanked on each side by a broader area slightly more than half as long and broader anteriorly than posteriorly; remainder of dorsum and posterior face of pro- podeum distinctly reticulate; propleurae finely, shallowly punctate; ventral area of mesopleurae reticulate, except posteriorly glabrous; dorsal area of mesopleurae finely punctate anteriorly, with mod- erate, shallow punctures posteriorly; metapleurae glabrous, except ventrally punctate; sides of propodeum weakly punctate; meso- sternum with a pair of small, acute teeth at the midline, the teeth slightly recurved posteriorly; tegulae small, convex, glabrous, except that the anterior and inner margins are punctate and ferruginous pubescent; first abdominal segment slender, petiolate, the first tergite with strong, moderate, close punctures; second tergite glabrous, with small, very sparse punctures throughout; remaining tergites with fine, shallow, indistinct punctures; last tergite obscurely granulate, without a well defined pygidial area; first sternite with a weak, longitudinal ridge, the latter slightly elevated anteriorly into a small tooth; second sternite with mod- erate, separated punctures; felt line present on second sternite and more than half the length of the felt line on the second ter- gite; remaining sternites finely punctate; wings slightly infus- cated; veins dark brown; cell 2nd R^ + Rg acute at the tip, the length on the costal margin equal to the length of the stigma; cell R+lst R^ long and narrow, its length equal to the length of cell 2nd R^ + Rg; cell Rg receiving vein before the middle; cell R^ and vein Mg entirely obsolete; legs clothed with sparse, pale hairs; calcaria pale yellowish. Length, 7 mm. Holotype. Male, Cat. No. 52783 United States National Museum, Eagle Lake, Lassen County, California, July 31, 1936 (K. A. Salman) . Near to fallax Viereck and ocellatus Baker, both having the felt line on the second sternite more than half the length of the felt line on the second tergite, but differs from both in the almost black legs and dark fuscous flagellum. Photopsis minutella Mickel, n. sp. Female. Entirely ferruginous, except the femora and tibiae blackish, and the flagellum pale ferruginous, paler than the head; front and vertex clothed with sparse, long, erect and recumbent, dark fuscous, almost black hairs; genae and remainder of head 184 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 with pale pubescence;' dorsum of thorax clothed with sparse, erect and recumbent, black hairs; remainder of pubescence of thorax pale; second abdominal tergite clothed with sparse, long, erect and recumbent, black hairs; tergites III to V with sparse, erect, black hairs; tergites II, III, IV and V and sternites II, III, IV and V, each with a thick fringe of pale, plumose hairs; remainder of abdominal pubescence above and beneath pale; head approximately the width of the thorax; mandibles slender, eden- tate at the tip, distinctly excised beneath near the base; antennal tubercles distinctly, but not widely, separated; first segment of flagellum scarcely longer than the pedicel, about equal in length to the second, and slightly shorter than the third; antennal scrobes not carinate above; front, vertex and gense with moderate, close, indistinct punctures; thorax subrectangular, slightly narrowed anteriorly and posteriorly; humeral angles angulate, but not prominent; dorsum of thorax with moderate, dense punctures, becoming recticulate on the dorsum and posterior face of pro- podeum; propleurae finely, indistinctly punctate; mesopleurae glabrous, except the dorso-ventral ridge closely punctate and with long, erect, pale hairs; metapleurae entirely glabrous; sides of propodeum glabrous, with a few, scattered, indistinct punctures, and a few, erect, pale hairs; scutellar scale entirely absent; first abdominal segment entirely sessile with the second; first tergite with small, close punctures; second tergite with moderately small, separated punctures; tergites III to V with fine, indistinct punc- tures; pygidial area distinct, margined laterally, weakly granu- late and with weak, longitudinal striations visible in certain lights ; first sternite with a median, longitudinal carina; second with small, close, indistinct punctures; remaining sternites finely, indistinctly punctate; legs clothed with pale pubescence; calcaria ferruginous. Length, 4 mm. Holotype. Female, Cat. No. 52782 United States National Museum, Eagle Lake, Lassen County, California, July 31, 1936 (K. A. Salman). Paratypes. Two females. Eagle Lake, Lassen County, California, July 31, 1936 (K. A. Salman), in the eol- leictions of University of Minnesota and K. A. Salman. Related to capricornis Rohwer, but differs in having the abdo- men ferruginous, the flagellum pale ferruginous and in having thick fringes of plumose pubescence at the posterior margin of segments II, III, IV and V, both above and beneath. This is probably the female of atripes. References Baker, C. F., 1905. New Western Mutillidae, I, II. Invertebrata Pacifica, vol. 1, pp. 93-99, 111-116. OCT. 1938] MICKEL— PHOTOPSIDS 185 Blake, Charles A., 1879. Catalogue of the Mutillidse of North America, with descriptions of new species. Trans. Am. Ent. Soc., vol. 7, pp. 243-254. Rohwer, S. A., 1909. New Hymenoptera from Western United States. Trans. Am. Ent. Soc., vol. 35, pp. 130-134. Viereck, H. L., 1904. The Species of Odontophotopsis. Trans. Am. Ent. Soc., vol. 30, pp. 81-92. THREE NEW SPECIES OF TEXANANUS BY DWIGHT M. DeLONG Ohio state University, Columbus Texananus bialtus DeLong, n. sp. Resembling latipex in form and general appearance but more distinctly colored and dorsal portion of the oedeagus tapered and sharply pointed at apex. Length, 6.5 mm. Vertex bluntly angled, one and one-half times as wide between eyes at base as median length. Color: Vertex yellow with a brownish broken transverse band between the eyes. Scutellum with anterior portion rather heavily marked with brown. Elytra creamy-white, rather sparsely marked with dark brown ramose lines, the two posterior pale commissural spots distinct. Genitalia: Male valve rather short and rounded, plates short with blunt tips. Styles long and narrow. Apices rounded, pointed on inner margin. In lateral view the ventral portion of the oedaegus is broader than in latipex, and the dorsal portion is gradually tapered to a pointed apex which is directed upward and anteriorly. Holotype male, Davis Mountains, Texas, August 22, 1936, collected by J. N. Knull, in the author’s collection. Texananus pergrada DeLong, n. sp. Resembling ovatus in form and general appearance but with ventral process of cedeagus very slender and unbranched. Length, 4.5-5.5 mm. Vertex bluntly angled, about one and one-half times as wide between eyes at base as the length at middle. Color variable; in well marked specimens with a brown spot 186 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 either side of apex and a broken brown band between the eyes on disk. Scutellum with four brown spots on anterior margin, elytra with dark ramose pigment lines and with the three pale commissural spots distinct. Genitalia: Female last ventral segment rather strongly and bluntly excavated, a brown-margined V-shaped notch at apex of excavation. Male valve triangular; plates broad, short, together appearing semi-circular; styles elongated, tapering at apex, bluntly angled. Apices pointed inwardly. CEdeagus in lateral view with a very slender, delicate ventral process and a broader sickle shaped process the apex of which is more narrowed and rounded at the tip. Holotype male, allotype female, and male and female para- types from Jemez Springs, New Mexico, June and September, 1919, and paratypes from Uvalde, Texas (Knull), and Mon- terey, Mexico, in author’s collection. Paratypes male and female from Modena, Utah; Desert, Utah; and Cedar City, Utah, in Herbert Osborn collection. Texananus dolus De Long, n. sp. Resembling decorus in form and coloration but with longer male plates and broader aedeagus. Length 6.5 mm. Vertex broadly rounded, twice as broad between eyes as median length, produced about half its length before anterior margin of eyes. Color: White, a brownish mark either side of apex and a broad, broken band back of ocelli, between the eyes. Scutellum with the two round spots on anterior half. Elytra marked as in decorus with the pale margin and spots along commissural line. Genitalia: Female, last ventral segment short, almost trun- cate, posterior margin with a V-shaped notch about two-thirds the distance to base; a small notch either side of median notch at base is rounded to posterior margin. Male plates triangular with slightly divergent, bluntly rounded apices ; oedeagus in lateral view with a rather broad ventral portion which is pointed at the apex, the dorsal margin sloping to ventral margin; dorsal por- tion twice curved, the apical portion sickle-shaped and curved dorsally and anteriorly. Holotype male and allotype female, Logan Canyon, Utah, July 24, 1930 (DeLong). OCT. 1938] NOTES 187 Note: Most interesting of the field trips of our Society members is that of Dr. E. C. Van Dyke who went north to Washington, then east to the Tetons and north again through Canada to Banff and back home by the coast. He took a great amount of material that will be placed in the Van Dyke Collec- tion at the California Academy of Sciences. Also of much in- terest was a three months’ trip by Mr. A. E. Michelbacher and E. S. Ross through Lower California to Cape San Lucas and back, by auto, bringing home a considerable collection of in- sects, a portion of which will come to the Academy of Sciences. Calendra (Sphenophorus) minimus Hart in California Recently Mr. R. W. Burgess has discovered a colony of the above-named beetle living about the roots of the Bermuda grass lawns on the campus of the University of California at Berkeley. This is, I believe, the first record west of the Rocky Mountains. Two other species of Calendra, both native to California, how- ever, have also been found on our university lawns: reticula- ticollis Boh. for many years, and seqiioi(E V. D. quite recently by Mr. J. J. du Bois. Other species found from time to time in the lawns of the San Francisco Bay region are simplex Lee. and gentilis Lee., common species of reedy marshes. — Edwin C. Van Dyke. Dates of Mailing The numbers of Vol. XIV of the Pan-Pacific Entomologist were mailed as follows: No. 1, on March 12, 1938; No. 2 on June 13, 1938; No. 3, on August 19, 1938; No. 4, on November 15, 1938. 188 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 A NEW SPECIES OF THE GENUS EANUS (COLEOPTERA ELATERIDyE) BY M. C. LANE* Bureau of Entomology and Plant Quarantine Eanus hatchi Lane, new species Male. Length 7. 0-9.3 mm., width 2.3-3 mm. Form moderately elongate, somewhat convex; distinctly shiny dark metallic with green to purple reflections, except antennae and tibiae which are brownish piceous, and the tarsi which are light brown. Vestiture above very short and inconspicuous, beneath short and fine though more evident and gray in color. Head quadrate; frons transversely convex between antennae, flattened between eyes, with a more or less distinct, broad, median, triangular impression, and smaller round impression on each side; moderately sparsely and coarsely punctate; antennae extending about three segments beyond posterior angles of pronotum; seg- ments II and III small. III slightly longer but similar to II, the two together nearly as long as IV which is elongate triangular, VI nearly two-thirds longer than broad, IV to X slightly serrate. Pronotum one-tenth wider than long, about as wide just in front of middle as across the base; sides broadly arcuate, sinuate in front of posterior angles which are divergent, acutely pro- duced, and obsoletely carinate; disc moderately convex, depressed to side margins which are somewhat explanate; median line very slightly impressed in basal portion, with a small round depression on each side just in front of the middle, about equidistant from middle and side margins; surface moderately sparsely and coarsely punctate to margins, punctures separated by considerably more than their own diameter. Scutellum slightly convex, slightly more finely and densely punctate than the pronotum, posteriorly some- what depressed and margined. Elytra at humeri one-eighth wider than pronotum, nearly two and one-half times as long as wide, widest a little behind middle, the sides straight and slightly divergent to apical third, evenly arcuate to the apices, which are bluntly rounded; each elytron with nine distinct, moderately deep, punctulate striae, the lateral margin slightly explanate, more so toward the apex, the intervals slightly convex, and finely rugosely punctuate. Propleura and prosternum evenly but somewhat more finely and densely punctate than pronotum, becoming somewhat more deeply and densely punctate on the prosternal mucro between the coxae. Metasternum, abdomen, posterior coxal plates and femora very finely and sparsely punctate. .^Edeagus as figured. *United States Department of Agriculture. OCT. 1938] LANE— A NEW EANUS 189 Female. Length 8.4 mm., width 3.2 mm. Differs from male in being slightly more robust and broader in proportion to length. Antennae barely reaching to posterior angles of pronotum; seg- ments II and III together longer than IV ; VI only one-fifth longer than broad; pronotum broader with posterior angles slightly less acute. Type locality. Snohomish County, Wash. (Chase Lake). Other localities, King County, Wash. (Lake Marie), and Seattle, Wash. Type, allotype, and paratypes. Cat. No. 52793, U. S. Na- tional Museum. Paratypes in collections of M. C. Lane, M. H. Hatch, H. P. Lanchester, California Academy of Science, and Canadian National Collection, Ottawa. Described from 82 male and two female specimens. Type, allotype, and 74 paratypes taken at the type locality on April 27, 1931; April 26, 1933; April 29, 1935; April 1936, April 29, 1937; and April 28, 1938, by M. H. Hatch; seven paratypes collected at Lake Marie, King County, Wash., May 14, 1936, by Hatch, Lane, and Lanchester; one paratype from Seattle, Wash., no date (C. V. Piper). The paratypes vary in size and color, some being quite green- ish coppery, others uniformly purple. The impressions on the front of the head vary greatly, sometimes being barely evident, and at the other extreme being in the form of a distinct W. The lateral impression on the pronotum; is absent in only a few speci- mens. The elytral striae vary somewhat, but they are always dis- tinct, with the intervals slightly convex in most specimens. This species has been collected only by sweeping the very low vegetation of pure sphagnum bogs surrounding small lakes at low altitudes in the Puget Sound area. The collector actually has to walk out on the floating sphagnum mat to sweep it. A few larv^ collected from the sphagnum moss itself are believed to belong to this species. This is the second representative of its genus from the Pacific Northwest with bright metallic color and striate elytra. The first was striatipermis, described by W. J. Brown of the Canadian National Museum at Ottawa (Can. Ent., Vol. LXVHI, p. 248, 1936) from two specimens, Mara Mt., B. C., 6,000 feet, June 26, 1929, (Edwards), and Mt. Hood, Oregon, July, 1927 (Darling- ton). The present author collected a male of striatipennis from Mt. Rainier, Wash., July 19, 1936 (Reflection Lake, 4,900 feet), which compares very well with the type; also, there was received 190 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 recently from D. M. Fender for determination a series of eight males from Mt. Hood, Oregon, May 7, 1937 (Government Camp, 4,100 feet). These nine males fit Brown’s description fairly well, but vary in color from specimens with the head and pronotum dark cupreous and the elytra green, to others that are entirely cupreous or even dark purple. They vary in size from 8.5 to 10.5 mm. and the scutellum is not always evidently sulcate. They were all collected on short grass in mountain meadows at more than 4,000 feet altitude. Hatchi differs from striatipennis in a number of particulars, being smaller, more elongate and more shiny, with the impressions of the head more distinct; antennal segments II and III combined never longer than IV in male; intermediate segments considerably longer than wide and not so serrate; pronotum smaller and more quadrate in shape, the punctation finer and sparser with the carina of the posterior angles obsolete; elytra wider than the pronotum and more than twice as long as wide, with the striae deeper, the intervals convex and less rugosely punctate; beneath more evenly, finely, and sparsely punctate. ^Tideagus of male shorter and stouter, with lateral lobes sinuate on both margins and arcuate on outer angle of tips. STR/AT/PENN/S Male ^deagus of Two Species of Eanus. The author also has a male specimen of what is probably striatipennis from Douglas, Alaska, July 25, 1901, but the color OCT. 1938] LANE— A NEW EANUS 191 is less brilliant and the elytral striae are shallowly impressed though evident. It shows a relationship with decor atus (Mann.) The aedeagus is the same as in striatipennis. These brilliantly colored species bear a superficial resemblance to Ludius weidti Angell, and striatipennis at least might be collected in the same situations, but they are easily differentiated by the characters given by Brown (Can. Ent., Vol. LXII, p. 161, July, 1930) for separating Eanus from Ludius. It is a pleasure to name this species for Dr. Melville H. Hatch of the University of Washington at Seattle, whose gen- erosity and encouragement have been very helpful and much appreciated. Notice to Members At the annual meeting on September 24, 1938, it was decided that membership in the Pacific Coast Entomological Society will include subscription to its journal, the Pan-Pacific Ento- mologist. Hence, beginning with Volume XV for 1939, mem- bers will be billed for the Journal and their dues jointly ($3.00) . This will effect a considerable economy in secretarial expenses and will save members the bother of separate payments. — E. G. Linsley, Secretary. PROCEEDINGS OF THE PACIFIC COAST ENTOMOLOGICAL SOCIETY One Hundred and Forty-fourth Meeting, April 27, 1936 Annual field meeting, held at the lower end of Lake Pilarcitos, San Mateo County, California. This property is part of the water- shed of the San Francisco Water Company, permission to enter it having been obtained through the efforts of Mr. J. B. Stein- weden. County Entomologist of San Francisco. The affair was rather exclusive, with a small attendance, but the day was pleas- ant, the country attractive, and the collecting fair. Mr. Stein- weden obtained several new species of thrips and Dr. Van Dyke a new weevil, besides numerous other interesting captures. — E. C. Van Dyke, Secretary pro tern. One Hundred and Forty-fifth Meeting, September 12, 1936 Meeting held in the entomological laboratories of the California Academy of Sciences, San Francisco, California. Members pres- 192 THE PAN-PACIFIC ENTOMOLOGIST [yoL, XIV. NO. 4 ent: C. D. Duncan, E. G. Linsley, E. C. Van Dyke, R. L. Usinger, M. A. Cazier, E. P. Van Duzee, Wm. Upholt, Edgar Smith, Arthur Smith G. F. Ferris, A. R. Mead, J. C. von Bloeker, E. R. Leach, A. T. McClay, H. E. Burke, Elwyn Daybell. Visitors present: James Elsea, B. E. White, S. Dorman, J. C. Clark, C. D. Michener, H. Rustad, M. A. Embury, P. W. Pedrotti, B. B. Kessel, R. E. Heckley, M. F. Blair. After the transaction of business, the membership committee recommended the following for membership: Dr. and Mrs. E. L. Kessel, Mr. M. A. Embury, Mr. Charles D. Michener, Mr. B. E. White, Mr. James Elsea, Mr. John C. Clark, and Mr. P. W. Pedrotti. They were unanimously elected. Upon the recommendation of the Nominating Committee, Mr. Van Duzee, chairman, the following were elected as officers for the coming year: Dr. C. D. Duncan, President; Mr. R. L. Usinger, vice-president, and Mr. E. G. Linsley, secretary-treasurer. Dr. Van Dyke read a letter from Prof. Essig, written from the British Museum of Natural History. Prof. Essig described the fine spirit of co-operation exhibited by the curators there and also discussed collecting and field work. He stated that he had had the privilege of copying the diary of Lord Walsingham, which recorded his famous trip to the west coast of North America. Dr. Van Dyke also reported the death of Dr. Killeen, a charter member of the Society and one who had long maintained an in- terest in the organization. It was unanimously voted that proper notice of h,is passing should be published in the Pan-Pacific Entomologist. Upon the suggestion of Dr. Burke, it was decided that the date for the annual fall meeting be changed to the Saturday nearest to the 20th, in order to avoid conflict with holidays. Prof. Ferris announced that he was preparing an atlas of scale insects, which it was hoped might ultimately contain illustrations of all of the species. Dr. Duncan presented the paper of the afternoon, upon mouth- part adaptations of Vespula as correlated with feeding habits. He pointed out the difference in feeding habits between the larvae and adults and discussed the resultant morphological differences. Dr. Duncan’s paper was beautifully illustrated with drawings of the anatomical and morphological details of the mouthparts, em- phazing in particular the musculature and functions of the com- ponent parts. After a general discussion of Dr. Duncan’s paper, the meeting was adjourned. — E. G. Linsley. OCT. 1938] INDEX TO VOLUME XIV 193 Aleutian Isds. Coleoptera of, 145. Allygianus gutturosus Ball, 153. merus, Bmr., 153. varius Bmr., 154. Amphizoa striata E. C. V., 112. Amphorophora nervata (Gill.), 91. Anabolia oslari Ling, 67. Andrena dinognatha Tmblk., 26. pensilis Tmblk., 27. suavis Tmblk., 24. Aphis gossypii Glover, 91. Arctocorixa beameri Hungf., 76. Arctopsyche brevipennis Ling, 64. californica Ling, 65. oregonensis Ling, 65. Astenophylax needhami Ling, 66 . Atheas mirabilis Drake, 70. Bailey, S. F., note by, 18. Bembex nicolai Ckll., 150. Blattarise of Washington, 120. Bombus brimeri Swnk., 29. e. fuscifrons Swnk., 30. Bonnell & Brugas, note by, 112. Caddis flies, 59. California fire ant, 87. Calendra minimus Hart, 187 Carabus forreri Bates, 95. Cerambycidae, Longevity in, 177. Syn. of N. Am. species, 105. Chelostoma, key to, 37. bernardinum Mchn., 41, 43. californicum Cress., 37. m. cockerelli Mchn., 43. m. incisulum Mchn., 44. m. marginatum Mchn., 44. phaceliae Mchn., 38. Chilostigma atlinensis Ling, 68. Chimarrha idahoensis Ling, 64. Chrysobothris arizonica Chmbl., 13. bisinuata Chmbl., 13. calcarata Chmbl., 12. grandis Chmbl., 14. planomarginatus Chmbl., 10. scotti Chmbl., 11. Clistoronia bifida Ling, 68. Coelambus curvipes Leech, 84. Key to 3 species, 86. Coleoptera of Aleutian Isds., 145. Colpotaulius tehamia Ling, 67. Creophilus maxillosus L., 148. Cysteodemus armatus, 124. Dalmannia of N. Am., key, 135. blaisdelli Cress, 133. heterotricha Bohart, 134. hirsuta M. C. V., 134. nigriceps Loew., 132. pacifica Banks, 134. picta Wlstn., 133. vitiosa Coq., 133. Derotropis, 172. astragali Mtchl., 174. Dicerca hesperoborealis H. & B., 151. Dictydea, key to, 34. falcata E. P. V., 35. variegata E. P. V., 34. Diplectrona oaklandensis Ling, 66 . Dolophilus arizonensis Ling, 63. cruzensis Ling, 64. Donacia, key, 118. g. flavipennis Mann., 117. fulvipes Lac., 117. idola Hatch, 110. s. magistrigata Mead, 113. d. occidentalis Mead, 114. e. pacifica Schffr., 116. Dyslobus remotus E. C. V., 3. Eanus hatchi Lane, 188. Euparagia, key, 137. maculiceps (Cam.), 137. platiniceps Bohart, 138. scutellaris Cress., 138. Gerridse of Mexico, 73. Gerrids, striding of, 157. Gerris ampla D. & H., 73. firma D. & H., 73. Glossosoma cregonense Ling, 62. Graptocorixa emburyi Hungf., 76. Graves, H. W., note by, 91. Gyponinse, Neotropical, notice, 128. Haplothrips californicus, 18, 19. Hatch, M. H., note by, 120. Hesperophylax minutus Ling, 67. Hinds, W. E,. Necrology, 96. Hodophylax, aridus James, 129. basingeri Ptchd., 130. Hoplandrothrips sycamorensis. Mason, 20. Hydrometra risbeci Hungf., 81. Hydropsychodes arizonensis Ling, 66. Idosaulus Zmrn., 158. abditus Zmrn., 159. Jaques, H. E., book by, 9. Leech, H. B., note by, 69, 84. Leptopharsa hintoni Drake, 71. usingeri Drake, 72. Linsley, E. G., note by, 97, 177. Listrus regalis Blsd., 165. Lycsena m. penroseae Field, 142. 194 THE PAN-PACIFIC ENTOMOLOGIST [yOL. XIV. NO. 4 Lygaeidse, nymphal scent glands, 83. Megachile, notes on, 168. couleeana, Mtchl., 171. Melanotus longulus Lee., 16. Metrobates porcus Andsn., 75. Monocrepidius exsul Sharp, 91. Mutillids, 178. Myzus ornatus Laing, 92. Nemocestes expansus E. C. V., 4. Neophylax pulchellus Ling., 68. Notonecta penecompacta Hungf., 78. penelobata Hungf., 77. Odontophotopsis atripes Mckl., 182. Oligoplectrum arizonicum Ling, 69. californicum Ling, 69. Orsillini from China, 140. Pacific Coast Ent. Soc., Proc., 46. Panscopus michelbacheri Ting, 121 . Paracimbt>cera E. C. V., 1. atra E. C. V., 2. Philopotamus novusamericanus, Ling, 63. oregonensis Ling, 63. Photopsis minutella Mckl., 183. salmani Mckl., 178. Phymatodes lecontei Linsl, n. n., 109. Plectrura spinicauda Mann., 69. Pleocoma, 49, 97. bibliography and synonymy, 100 . distribution, 97. blaisdelli Linsl., 55. carinata Linsl., 56. crinita Linsl., 53. d. leachi Linsl., 52. minor Linsl., 52. trifoliata Linsl., 57. h. vandykei Linsl., 56. Polyphylla barbata Czr., 161. Pratt, R. Y., notes by, 157, 167. Prionus, Synonymical notes, 105. Proranus ghilianii Spinola, 128. Prothetely in wireworms, 16. Rhagovelia mira D. & H., 152. Rhyacophila betteni Ling, 59. callfornica Ling, 60. complicata Ling, 60. doddsi Ling, 61. novarotunda Ling, 61. oregonensis Ling, 61. Sampson, W. W., note by, 91. Scaphinotus, coll’n of, 167. Scoliopelta grandis James, 156. Sinorsillus Usngr., 140. piliferus Usngr., 140. Sitona cockerelli Blsd., 31. Solenopsis x. maniosa Whir., 87. Texananus bialtus De L., 186. dolus De L., 187. pergrada De L., 186. Thysanocorynus E. C. V., 5. aridus E. C. V., 6. Tingitidse of Mexico, 70. Trepobates becki D. & H., 75. Trichalophus seminudus E. C. V., 7. Triglyphulus nevadensis E. C. V., 8. TVpes in Oal. Acad. Sci., 104. iJsinger, R. L., note by, 9. Van Duzee, E. P., note by, 128. Van Dyke, E. C., note by, 95. Water Bugs from Mexico, 76. Wilson, G. R., obituary, 143. Xeromegachile, 168. THE Pan -Pacific Entomologist VOLUME FOURTEEN 19 3 8 E. P. VAN DUZEE, Editor E. C. VAN DYKE, Associate Editor E. R. LEACH, Treasurer R. L. USINGER, Business Manager Published by the Pacific Coast Entomological Society in co-operation with The California Academy of Sciences San Francisco, California 1938 11 CONTENTS OF VOLUME XIV Armitage, H. M., George Ringo Wilson 143 Bailey, Stanley F., A redescription of two species of California Thrips 19 Bells in memory of W. E. Hinds 96 Beamer, R. H., Two new species of Allygianus 153 Blaisdell, Frank E., A new species of Sitona from San Miguel Island 31 A new species of Listrus from Sequoia National Park.. 165 Bohart, George E., Synopsis of the genus Dalmannia in North America.... 132 Bohart, Richard M., A synopsis of the genus Euparagia 136 Cazier, Mont A., A new California Polyphylla, with notes on certain characters within the genus 161 Chamberlin, W, J., Six new species of Chrysobothris from the Western United States 10 Cockerell, T. D, A., A new bembecine wasp from San Nicolas Island, Cali- ornia, 150 De Long, Dwight M., Three new species of Texananus 185 Drake, Carl J,, Mexican Tingitidae 70 Drake, Carl J., and Harris, H. M., Concerning Mexican Gerridae 73 A new Rhagovelia from Cuba 152 Essig, E. 0., The ornate aphid, new to North America 92 Field, William D., A new race of Lycaena mariposa 142 Hatch, Melville H., A new species of Donacia from Washington 110 Report on the Coleoptera collected by Dr. V. B. Schef- fer on the Aleutian Islands in 1937 145 Ill Hatch, Melville H. and Beer, Frank M., A new species of Dicerca from Washington 151 Hungerford, H. B., Report upon some water bugs from Mexico, collected by Mr, Embury 76 A new Hydrometra from New Caledonia 81 James, Maurice T., A second species of Scoliopelta 156 Lane, M. C., A new species of the genus Eanus 188 La Rivers, Ira, Notes on Cysteodemus in Southern Nevada 124 Leech, Hugh B., A new species of Ccelambus from California 84 Ling, Shao-Win,, A few new caddis flies in the collection of the Califor- nia Academy of Sciences 59 Linsley, E. Gorton, Notes on the habits, distribution and status of some species of Pleocoma 49, 97 Synonymical notes on some North American Ceram- byoddae , 105 Mallis, Arnold, The California fire ant and its control 87 Mead, Albert R., New subspecies and notes on Donacia, with key to the species of the Pacific States 113 Michener, Charles D., American bees of the genus Chelostoma 36 Mickel, Clarence E., Photopsid Mutillids collected by K, A. Salman at Eagle Lake, California 178 Mitchell, Theodore B., Notes on the Megachilid subgenera Xeromegachile and Derotropis 168 Pacific Coast Entomological Society, Proceedings 46, 191 Pritchard, A. E., The genus Hodophylax James, with a description of basingeri, n. sp. 129 IV Stone, M. W., An occurrence of prothetely in Melanotus longulus Lee 16 Swenk, Myron H., Two New American Bumblebees 29 Timberlake, P. H., New species of Andrena from California 24 Ting, Peter C., A new species of Panscopus in the subgenus Nocheles.. 121 Usinger, Robert L., Dorsal abdominal scent glands in nymphs of Lygaeidae 83 A new genus and species of Orsillini from China 140 Van Duzee, Edward P., Genus Dictydea Uhler 33 Van Dyke, Edwin C., New species of Rhynchophora from Western North America 1 Zimmerman, Elwood C., Idosaulus, a new genus of Fijian Cryptorhynchinae 158 The binocular microscope shown at the left is the new wide field binocular, BKW. This stand is inclinable, with large sturdy horseshoe base. The mirror is 60 mm. di- ameter. When desired, the base may be removed and the microscope placed di- rectly upon the specimen. The BKW is priced from $127.50 depending upon the equipment selected. BKW-5, for example, in- cludes two pairs eyepieces (I OX and I5X) three sets of paired objectives (0.7X, 1 .5X, 2.0X mounted In Drum Noseplece, and case, $198.00. MEETS THE REQUIREMENTS OF THE ENTOMOLOGIST I’" ■ The KW Wide Field Binocular Miscroscope is especially suited to the "all around" needs of the entomologist. Long working dis- tance allows ample room for manipulating large specimens. The erect, stereoscopic view facilitates dissection. The objectives and eyepieces of the KW are designed to give an extremely wide field and high eye point. An exclusive feature of the KW Series is the B&L patented drum noseplece. A wide selection of Binocular Misroscopes of the Greenough type is described in Catalog D-I5- These include. In addition to the KW Series, supplementary models designed to suit specific needs of the educational or Industrial worker. We shall be glad to suggest a model for your work. • • BAUSCH & LOMB OPTICAL COMPANY ROCHESTER. NEW YORK • • SAN FRANCISCO ADDRESS: 593 MARKET STREET