NRLF III B 3 371 GIFT OF BIOL08Y LIBRARf 0 STUDIES IN PHILIPPINE DIPTERA, II BY M. BEZZI 141802 MANILA BUREAU OF PRINTING 1916 PUBLICATIONS FOR SALE BY THE BUREAU OF SCIENCE, MANILA, PHILIPPINE ISLANDS ETHNOLOGY A VOCABULARY OF THE IGOROT LAN- GUAGE AS SPOKEN BY THE BONTOC IGOROTS By WALTER CLAYTON CLAPP Order No. 408. Paper. 89 pages, $0.75, postpaid. The vocabulary is given in Igorot-English and English-lgorot. THE NABALOI DIALECT By OTTO SCHEEREB and THE BATAKS OF PALAWAN By EDWARD Y. MILLER Order No. 403. Paper, $0.25; half mo- rocco, $0.75; postpaid. The Nab,aloi Dialect (65 pages, 29 plates) and the Bataks of Palawan (7 pages, 6 plates) are bound under one cover. THE BATAN DIALECT AS A MEMBER OF THE PHILIPPINE GROUP OF LANGUAGES By OTTO SCHEEBEB and "F" AND "V" IN PHILIPPINE LANGUAGES By CARLOS EVERETT CONANT Order No. 407. These two papers are issued under one cover, 141 pages, paper. $0.80, postpaid. ETHNOLOGY— Continued STUDIES IN MORO HISTORY, LAW, AND RELIGION By NAJEEB M. SALEEBY Order No. 405. Paper, 107 pages, 16 plates, 5 diagrams, $0.25; half mo- rocco, $0.75; postpaid. This volume deals with the earliest written records of the Moros in Mindanao. The names of the rulers of Magindanao are recorded in five folding diagrams. NEGRITOS OF ZAMBALES By WILLIAM ALLAN REED Order No. 402. Paper, S3 pages, 62 plates, $0.25; half morocco, $0.75; postpaid. ^ Plates from photographs, many of which were taken for this publication, show orna- ments, houses, men making fire with bamboo, bows and arrows, dances, and various types of the people themselves. INDUSTRIES PHILIPPINE HATS By C. B. ROBINSON Order No. 415. Paper, 66 pages, plates, $0.50 postpaid. This paper is a concise record of the history and present condition of hat making in the Philippine Islands. 8 THE SUBANUNS OF SINDANGAN BAY By EMERSON B. CHRISTIE Order No. 410. Paper, 121 pages, 1 map, 29 plates, $1.25, postpaid. Sindangan Bay is situated on the north- ern coast of Zamboanga Peninsula. The Su- banuns of this region were studied by Mr. Christie during two periods of five and six weeks, respectively. The 29 plates illustrate the Subanuns at work and at play; their industries, houses, altars, and implements; and the people themselves. THE HISTORY OF SULU By NAJEEB M. SALEEBY Order No. 406. Paper, 275 pages, 4 maps, 2 diagrams, $0.75, postpaid. In the preparation ef his manuscript for The History of Sulu, Doctor Saleeby spent much time and effort in gaining access to documents in the possession of the Sultan of Sulu. This book is a history of the Moros in the Philippines from the earliest times to the American occupation. THE SUGAR INDUSTRY IN THE ISLAND OF NEGROS By HERBERT S. WALKER Order No. 412. Paper, 145 pages, 10 plates, 1 map, $1.25, postpaid. Considered from the viewpoint of prac- tical utility. Mr. Walker's Sugar Industry in the Island of Negros is one of the most important papers published by the Bureau of Science. This volume is a real contribu- tion to the subject; it is not a mere com- pilation, for the author was in the field and understands the conditions of which he writes. A MANUAL OF PHILIPPINE SILK CULTURE By CHARLES S. BANKS Order No. 413. Paper, 53 pages, 20 plates, $0.75, postpaid. In A Manual of Philippine Silk Culture are presented the results of several years' actual work with silk-producing larvae to- gether with a description of the new Philip- pine race. STUDIES IN PHILIPPINE DIPTERA, II BY M. BEZZI 141802 MANILA BUREAU OF PRINTING 1916 BIOLOGY DEPARTMENT OF THE INTERIOR BUREAU OF SCIENCE MANILA Publication No. 10 Actual date of publication, November 15, 1916 CONTENTS Page. Illustrations „ 5 Introduction 7 Additions to the species enumerated in the first century 7 Second century of the Baker collection 7 ILLUSTRATIONS PLATE I FIG. 1. Head of Schizella furcicornis g. et sp. nov., from above. X27. 2. Wing of Tylopterna monstrosum g. et sp. nov.; a, the spine of the underside. About X23. 5 THE GOVERNMENT OP THE PHILIPPINE ISLAM'S DEPARTMENT OF THE INTERIOR BUREAU OF SCIENCE MANILA STUDIES IN PHILIPPINE DIPTERA, II By M. BEZZI (Turin, Italy) Since the publication of the first paper of this series l I have received from Professor Baker very rich material, which enables me to continue these studies and to add some very important novelties to the already interesting oriental fly fauna. A second ' 'century" is here offered, which will be quickly followed by others. In the meantime some new species of Diptera have been de- scribed from the Islands, which are enumerated here with the object of completing the catalogue appended to the first century. TIPULID^E :* Geranomyia cornigera ALEXANDER, Insec. Menstr. (1913), 1, 137, from Pettit Barracks (Ludlow). TACHINID^E Bengalia, two unnamed species, BEZZI, Ent. Mitteil. (1913), 2, 75 and 78, from Los Bafios (Baker). PHORID.E Aphiochasta variata MALLOCH, Proc. U. S. Nat. Mus. (1912), 43, 515, from Manila (Stanton). CYPSELID^E (BORBORID^E) Leptocera (Limosina) picturata MALLOCH, Proc. U. S. Nat. Mus. (1912), 43, 653, from Manila (Brown). ORTALID.E Campylocera thoracalis HENDEL, Arch. f. Naturg. (1913), 79, 95, from Maao, Negros (Banks). MILICHIID.E Gitonides perspicax KNAB, Insec. Insc. Menstr. (1914), 2, 166, reared from Pseudococcus sp., Manila (Compere). SECOND CENTURY OF THE BAKER COLLECTION The first century of Philippine Diptera was based upon speci- mens from Luzon only. More recently Professor Baker has 1 See Phil. Journ. Sci., Sec. D (1913), 8, 305-332, for the first century. 7 8 : •'. PHILIPPINE DIPTERA, II collected in islands other than Luzon, and for this reason local- ities are given for each species of the second century. Another series of Diptera, chiefly blood-sucking forms, has been received from Mr. M. B. Mitzmain, Alabang, Rizal Province, Luzon. This locality is about 35 kilometers from Los Banos. 101. Plecia fulvicollis Fabr. 1805. Los Banos. A very common species spread over all the Oriental Region and extending also to- New Guinea and Austra- lia. It is very variable in size, one female specimen measur- ing only 4 millimeters in length, like an Indian one recorded by Brunetti.2 102. Bibio rubicundus van der Wulp. 1884. Some females from Mount Banahao. Previously known only from Java. A very characteristic species, differing from Bi- bio obediens 0. S. (New Guinea) in the yellow coloration of the wings; the antennal flagellum, wanting in van der Wulp's type, is black; on the contrary, the scape, which is said to be black, is yellow in the present specimens, as in obediens. The very long spur of the front tibiae — about as long as the tibia — is dark reddish. The wings have the stigma pale yellow and rather broad; the second posterior cell is sessile at base. 103. Culicoides judicandus sp. nov. Female. — Length of body, 1 millimeter. Near C. molests Skuse of Australia and C. guttifer de Meijere of Java, but the wing pubescence very scanty and confined to the extreme tip of the wings. In this character it agrees with C. pungens de Meijere of Java; but the wing pattern is more like that of guttifer, from which it differs chiefly in having a clear spot at end of the subcostal cell, and in the fact that the clear marginal spots are not in contact with the wing margin, but are placed at a little distance from it; the other spots are distributed as in guttifer. Neuration the same as in guttifer. Body brownish black, without distinct pattern. Legs dark brown, with the knees and the tips of tibiae and tarsi whitish yellow. Antennae short and blackish. LUZON, Rizal, Alabang (Mitzmain). Mr. Mitzmain has used this gnat in experiments on the transmission of surra. 104. Pselliophora suspirans 0. S. 1882. Mount Maquiling. An endemic species. The present speci- mens differ from Osten Sacken's description in having a rounded 2 Fauna of Brit. India, 163. PHILIPPINE DIPTERA, II 9 yellowish spot between the middle and hind coxae, of which the author does not speak; the collar shows a grayish spot in the middle ; the wings show a trace of a yellowish tinge at base. Key to the Philippine species of the genus Pselliophora Osten Sacken. The genus Pselliophora seems to be rich in endemic Philippine species, some of which are very beautiful insects and are similar in general facies and coloration to some endemic species of the genus Eriocera. They may be distinguished as follows : a1. Tibise with a white basal ring; fourth posterior cell rather long, not much broader at base than at tip. ft1. Wings uniform black or blackish; head brown; thorax entirely black _ dolens O. S. 6*. Wings brown, with a white spot in the middle. c1. Scutellum black. cf. Collar entirely black or with only a grayish middle spot; femora black at base; abdomen with a single yellow band. suspirans 0. S. cf. Collar with a broad white spot in the middle; femora broadly yellow at base, at least those of the hind pair in the female; third and fourth abdominal segments with yellow spots. suspirans hilaris var. nov. c*. Scutellum yellow; femora with yellow base; abdomen with segments 2 to 4 reddish yellow; genitalia black idalia O. S. a1. Tibiae without white basal rings; wings uniformly blackish, with the fourth posterior cell short, twice as broad at base as at end; species of greater size. e1. Thorax and legs entirely black praeflca sp. nov. ea. Thorax and legs partly orange-yellow tripudians sp. nov. 105. Pselliophora suspirans hilaris var. nov. Very like P. suspirans, but distinguished by the more whitish than yellowish thoracic markings and by the more extended, whitish abdominal pattern. Male and female. — Length of body, 12 to 13 millimeters; of wing, 12 to 13. Rostrum without brown spot in front. Collar with a broad whitish spot toward the middle. Pleurae with a rounded whitish spot between the last two pairs of coxae. Scu- tellum black ; mesophragma with a less distinct yellowish spot on each side. Halteres black, with the stalk yellowish toward the base. Abdomen with the pale crossband on the second seg- ment as in P. suspirans, but besides with a broad yellowish band on the hind borders of third and fourth (in the male narrowly interrupted in the middle, in the female divided into two spots) ; also a smaller yellow spot on each side of fifth segment. On the venter all the segments after the second one with a broad yellow band at the hind border or a broad spot on each side; last seg- 10 PHILIPPINE DIPTERA, II ment in the male produced in the shape of a long, conical yellow protuberance. Male genitalia black and black-haired above, dark yellowish pilose below, with a yellow, longitudinal, middle stripe and two yellow tubercles at tip below. Ovipositor black, the terminal lamellae dark yellow at tip. Hind femora in male narrowly, in female with the basal half, yellow. Wings as in P. suspirans; the triangular whitish spot at base of the two basal cells more developed ; the first posterior cell usually stalked at base. LUZON, Laguna, Los Banos and Paete (Baker). 106. Pselliophora prsefica sp. nov. An entirely black species, with unicolorous legs and wings. Male. — Length of body, 15 millimeters; of wing, 16. Head black, but the underside of rostrum and a broad border at the hind margin of eyes reddish yellow ; palpi black and black-haired ; antennae entirely black, with the appendices of flagellum provided with scanty dark pubescence. Thorax entirely black even on collar, scutellum, and mesophragma; dorsum rather opaque, pleurae shining; the rather long hairs on postalar calli and scutellum black. Halteres black, with black pubescence on the stalk. Abdomen entirely black, even on center, with rather long black pubescence; genitalia entirely black and black-haired. Legs entirely black, even on the coxae, and black-pubescent, hind femora distinctly thickened. Wings uniformly darkened, with strong metallic reflections; squamae black ; basal pubescence of the axillary angle long, soft, and black. Veins black, but the basal vein of the discoidal cell appears whitish or somewhat light in color ? first posterior cell sessile at base; fourth posterior cell short, much narrowed at end, more than twice as broad at base as at end. MINDANAO, Butuan (Baker). 107. Pselliophora tripudians sp. nov. Evidently allied to P. prxfica, but distinguished by the bright rufous of head, thorax, and tibiae. This very strikingly colored species seems to be allied to P. incunctans Walker of Celebes, velutina van der Wulp of Celebes, and annulosa van der Wulp of Java, but is different from these and from any other in coloration. Female. — Length of body, 18 millimeters ; of wing, 19. Head, with neck and rostrum, entirely bright rufous, with reddish or yellowish hairs and some scattered, long black hairs on occiput only; palpi rufous, with only the extreme tip of last joint deep black. Antennae entirely rufous and with reddish hairs, only PHILIPPINE DIPTERA, II H the scape below with black hairs. Thorax with collar, protho- rax, and entire dorsum bright opaque rufous, with reddish hairs ; pleurae, scutellum, and mesophragma deep black, with black hairs. Halteres black. Abdomen entirely deep black, opaque, even on venter, with few and short black hairs ; ovipositor shin- ing black, with acute dark reddish terminal lamellae. Front coxae and trocanters rufous like the prothorax; front legs want- ing in case of type; middle and hind legs with black coxse and trocanters ; femora black and black-haired, but their ends rufous and with reddish hairs ; tibiae rufous, reddish-haired, the extreme tips and terminal spurs black; tarsi black, but the praetarsi rufous at base. Wings exactly as in P. pr&fica. LUZON, Laguna, Mount Maquiling (Baker). The possibility is not excluded that the present species may be the female of P. prsefica. 108. Tipula umbrina Wied. 1828. A female of this species from Los Banos. It is known also from Sumatra, Java, Borneo, and New Guinea. 109. Tipulodina cinctipes de Meijere. 1911. One female from Mount Maquiling, Luzon. This is a very distinct species on account of its vitreous wings and white- banded legs. It is perhaps the same as Tipida pedata of Osten Sacken's paper, but in the white ring of the front femora it answers better to the description of T. cinctipes from Borneo, known in the male sex only. The present specimen is larger, measuring 17 millimeters in length of body, 17 in length of wing, and 130 in spread of legs. The subcostal cell and a narrow streak along the fifth longitudinal vein are deep black; the fork formed by the first vein issuing from the discoidal cell is as long as its stalk, in contrast with de Meijere's description. The genus Tipulodina, in my opinion, is to be placed in the subfamily Dolichopezinae, and to this genus must be added other species besides T. pedata Wiedemann, like magnicornis Ender- lein, venusta Walker, inordinans Walker, gracillima Brunetti, and patricia Brunetti. 110. Megistocera fuscata Wied. 1821. A couple of specimens from Mount Maquiling. This is a very interesting species, known from Java, Sumatra, Celebes, Aru, and Borneo. The antennae of the male measure 65 millimeters in length, but they are in some cases more than 80. A very 12 PHILIPPINE DIPTERA, II instructive figure of the characteristic wing of the present species has been published.3 111. Scamboneura dotata 0. S. 1882. A single female from Mount Maquiling. Endemic. This may be the unknown female of Osten Sacken's species, or a different species. It differs from the description of the male in the fol- lowing points: Frons entirely yellow, without middle brown line; joints of the flagellum entirely blackish ; thorax entirely yellow, opaque, without stripes; scutellum and mesophragma entirely yellow, the latter paler; pleurae entirely pale yellowish. Abdomen yellowish, with a darker, median longitudinal stripe; ovipositor shining reddish, with the terminal lamellae straight and obtuse at end. In the Javanese species, S. qiwdrata de Meijere, 1913, of which only the female is known, the thorax has three longitudinal brown stripes; S. vittifrons Walker, 1861, from Amboina, also known only from the female, has an ochraceous unstriped thorax, with two black dots on each side ; in addition, the head, antennae, and abdomen are differently colored. At present I think it better to consider the present specimen as the other sex of dotata, or at most as a variety, which may be named S. dotata unicolor var. nov. Key to the Philippine species of the genus Eriocera sens. lat. The genus Eriocera seems to be very rich in endemic Philip- pine species; those known to me may be distinguished as follows : a1. Wings with only four posterior cells (Eriocera sens. str.). ft1. Antennae of male enormously elongate, many times as long as the body; wings subhyaline in both sexes, with the anterior and poste- rior cross veins placed on the same line with the basal vein of the discoidal cell verticalis Wied. 62. Antennas of male much shorter than the body; wings in both sexes infuscated with a whitish middle spot and with the above-named veins not in the same line. c\ Hind legs of the usual shape; abdomen dilated, shining, with viola- ceous reflections and with some yellowish bands near the base. lativentris sp. nov. c2. Hind legs distinctly thickened; abdomen not dilated and entirely black crassipes sp. nov. a2. Wings with five posterior cells (genus Physecrania Big.). ef. Legs black; abdomen with one or two yellow crossbands near the base; wings with black base and fore border mansueta O. S. eT. Legs yellow, with black knees; abdomen with four yellow cross- bands; wings with yellowish base and fore border. perennis 0. S. 8 Zool Jahrbuch (1912), 32, 30. PHILIPPINE DIPTERA, II 13 112. Eriocera verticalis Wiedemann. 1828. A couple of specimens from Los Banos and Mount Maquiling. A very peculiar species, known from Java and Japan. The antennae of the present male measure 45 millimeters in length. 113. Eriocera lativentris sp. nov. Closely allied to E. mansueta Osten Sacken in coloration of body and wings, but at once distinguished by the abdomen being more than twice as broad and with the last four segments strongly shining and adorned with violaceous reflections. Male. — Length of body, 11 to 13 millimeters; of wing, 10 to 12. Head covered with dense gray dust ; antennas with the two basal joints of flagellum more yellow. Thorax, scutellum, and halteres as in E. mansueta. Abdomen narrow at base, but becoming gradually broader, the sixth segment more than twice as broad as the second; abdomen clothed with black hairs; first joint entirely black; second yellow, with a black hind border; third black, with two narrow yellow crossbands at base; fourth black, with a similar band, but narrower; fifth to seventh en- tirely black, but with strong violaceous reflections. Genitalia yellow, with pale yellowish hairs. Venter black, with yellow crossbands on second, third, and fourth segments, that of second much broader than the others. Legs with the coxae entirely black, but the front femora distinctly yellowish near the base; hind legs not thicker than usual. Wing pattern as in E. mansueta, but the base narrowly yel- lowish ; first vein issuing from the distal cell not forked ; posterior cross vein distinctly before the middle of the discoidal cell; auxiliary vein ending opposite the marginal cross vein. LUZON, Laguna, Los Banos and Mount Maquiling (Baker). 114. Eriocera crassipes sp. nov. Closely allied to Eriocera lativentris, but very distinct. Male and female. — Length of body (without ovipositor), 9 to 11 millimeters; of wing, 10 to 13; of ovipositor, about 5. Head dull black, with blackish dust. Antennae entirely black. Thorax and scutellum opaque, not at all shining as in E. lati- ventris; pleurae black-haired, with some gray dust above. Ab- domen broader than in E. mansueta, but narrower than in E. lativentris, entirely black in both sexes; last five segments shining, but destitute of violaceous reflections. Venter entirely dull black; male genitalia opaque, orange-yellow, with yellowish hairs; ovipositor orange-yellow, opaque, its terminal lamellae very thin and acute, longer than the basal joint. Legs entirely 14 PHILIPPINE DIPTERA, II black, even at base of the front femora ; hind femora, and espe- cially the hind tibiae on the apical half, distinctly incrassate; hind tarsi shorter and thicker. Wings as in E. lativentris, but subhyaline at base of hind border ; the middle spot broader and more whitish than yellowish; first vein issuing from discal cell not forked; auxiliary vein ending before the marginal cross vein ; posterior cross vein on, or a little after, the middle of the discoidal cell. LUZON, Laguna, Los Banos and Mount Maquiling (Baker) . In the case of the male type the discoidal cell is regularly open in both wings, coalescing with the second posterior cell; in the female it is quite normal. 115. Eriocera (Physecrania) mansueta 0. S. 1882. Los Banos and Mount Maquiling. This endemic species is closely allied to E. bicolor Macquart and E. cingulata de Meijere. There is sometimes a smaller yellow crossband also on fore border of the third abdominal segment. The legs are black. An immature male specimen from Mount Limay, Bataan Prov- ince, Luzon, has the fourth posterior cell divided by a super- numerary cross vein regularly in both wings. 116. Eriocera (Physecrania) perennis 0. S. 1882. Los Banos and Mount Maquiling. Endemic. 117. Conosia irrorata Wied. 1828. Specimens of both sexes from Los Banos and Mount Maquiling. This characteristic species is widely spread over the Oriental Region — New Guinea, Australia, and Japan — as well as over the whole Ethiopian Region. 118. Mongoma pennipes 0. S. 1887. One female from Los Banos. This delicate midge was first described from Borneo and was subsequently recorded from India, Ceylon, and Java. 119. Trentepohlia pictipennis sp. nov. A pretty species, very near T. speiseri Edwards from Ceylon, but at once distinguished by the different wing pattern. Male. — Length of body, 5 millimeters; of wing, 5.7. Head, palpi, and antennae dark brownish, antennae a little paler toward the base. Thorax on dorsum dark reddish brown, darker along the middle line; scutellum and mesophragma brownish; pleurae blackish brown. Halteres pale yellowish, with darker stalk. Abdomen entirely black, even on venter, and a little shining; male genitalia small and black, terminating with two hooks PHILIPPINE DIPTERA, II 15 curved upward. Coxae entirely light yellowish, the tarsi dark- ened at end ; front and middle femora without bristles at base beneath. Wings long and narrow, pale yellowish along the costa and hyaline, iridescent on the remainder; the brown markings are as figured by Edwards for T. speiseri 4 with the following differences : The middle brown patch extended over the second longitudinal vein and from it a narrow fuscous border extending along the veins to the end of the anal cell ; the brown apical patch not extended over the first posterior cell, which is hyaline in the middle, and has no cleap spot in the middle of the second marginal cell. LUZON, Laguna, Mount Maquiling (Baker). 120. Styringomyia ceylonica Edw. 1911. Specimens of both sexes from Los Banos and Mount Ma- quiling. This strange insect is recorded from Ceylon, India, and Formosa; it is nearly allied to S. didyma Grimshaw from Hawaii and Java. Key to the Philippine species of the genus Libnotes Westwood. The genus Libnotes seems to be very rich in endemic species ; those known from the Philippine Islands all have the marginal cross vein elongated, with the exception of L. familiaris, which is also found in Java ; in this last island the opposite is the usual case. No species with punctate or variegated wings occurs in the Philippine Islands, so far as is known. a1. Marginal cross vein short, perpendicular, forming a right angle with the first longitudinal vein; base of second posterior cell more drawn inward than that of third; thorax ochraceous, with a middle, longi- tudinal black line; wings hyaline; legs yellowish familiaris O. S. a3. Marginal cross vein long, placed obliquely, seemingly the prolongation of the first longitudinal vein incurved toward the second. b\ Wings hyaline, with a more or leas intensive yellowish tint; body entirely ochraceous, without black markings. c1. Wings with a very faint yellowish gray tint, only a little more in- f uscated at fore border and apex ; bases of second and third poste- rior cells on the same line - opaca sp. nov. c2. Wings with an intensive yellow tint and with a brown border around the apex; base of third posterior cell more drawn inward than that of second marginalis sp. nov. 62. Wings brown or blackish; body bright orange, with deep black mark- ings; bases of second and third posterior cells on the same line; legs blackish. (f. Wings brown, with a distinctly darker apex; abdomen with only the tip black termitina 0. S. d\ Wings uniformly blackish; abdomen almost entirely deep velvet- black semperi O. S. 4 Ann. & Mag. Nat. Hist. (1913), VIII, 12, 204, fig. 2. 16 PHILIPPINE DIPTERA, II 121. Libnotes opaca sp. nov. Entirely opaque orange-yellow, with the genitalia dark brown ; wings hyaline, with a pale yellowish tint. Male. — Length of body, 10.5 millimeters; of wing, 13. Head entirely yellow, with the rostrum brownish; palpi black; anten- nae black, the scape and the first joint of flagellum somewhat yellowish. Thorax and scutellum uniform bright orange, entirely opaque, destitute of any black or brown marking. Halteres yellow, with brown knob. Abdomen colored like the thorax, even on venter ; forceps brown, with the underplate dark yellow. Legs wanting in the type ; coxae and trocanters bright orange. Wings with only a light yellowish tinge, with an elongated, less distinct, stigmatic grayish spot and the extreme tip a little darkened. Marginal cross vein prolonged, seemingly a continua- tion of the first longitudinal vein ; discoidal cell much narrower at base than at end, hind cross vein placed on its middle ; second and third posterior cells of the same length. LUZON, Laguna, Mount Maquiling (Baker). The present species is closely allied to L. familiaris Osten Sacken, differing in the prolonged marginal cross vein and in the opaque, unstriped thorax. Allied also to L. rufa de Meijere, but distinguished by the wings not being inf uscated and by the base of the third vein not being margined with fuscous. 122. Libnotes marginalia sp. nov. Very near L. opaca, but of greater size and distinguished by the wings being yellowish and bordered with black at tips. Male. — Length of body, 11.5 millimeters ; of wing, 14.5. Head and rostrum yellow ; palpi and antenna? as in L. opaca. Thorax, scutellum, halteres, and abdomen as in L. opaca. Genitalia with yellow, not brown, forceps. Legs wanting in the type. Wings with a strong yellowish tinge and a broad black border, extended from end of first vein to the base of fourth posterior cell; marginal cross vein elongated; discal cell a little shorter than in L. opaca; third posterior cell at base longer than the second, the veins, therefore, not on the same line as in opaca and exactly the opposite of the condition in familiaris. LUZON, Laguna, Mount Maquiling (Baker) . 123. Libnotes termitina O. S. 1882. One male from Mount Maquiling. Endemic. 124. Geranomyia argentifera de Meij. 1911. One female from Mount Maquiling. Know only from Java; a very distinct species on account of the hyaline wings and the silvery patches on frons and thorax. PHILIPPINE DIPTERA, II 17 125. WaUacea argentea Dol. 1858. Los Banos. A well-known species, widely distributed over the Oriental Region to New Guinea. In case the generic name Wallacea Doleschall, 1858, is pre- occupied by Wallacea Baly, 1858 (Coleoptera, Hispidae), the name Gabaza Walker, 1859, must be employed in its place. 126. Atherix limbata 0. S. 1882. Mount Maquiling. The undescribed male of this endemic species is very much like the female; the eyes are united for a long distance ; the antennae and the proboscis are lighter yellow ; the palpi are yellow and clothed with a shining white dust. The coloration of the abdomen is exactly the same as in the female ; the entire last segment and the sides of the penultimate seg- ment are reddish; genitalia erected, pale yellowish, whitish at end. Legs and wings as in the female. 127. Atherix fascipennis sp. nov. The present species belongs to the oriental group of species distinguished by the body being wholly black, at least in the female, like A. cincta Brunetti, A. lucens de Meijere, A. cserul- escens Brunetti, but it is possible that some unknown males of these species have a partly yellow abdomen, as described by me for the Formosan specimens of A. cincta.5 In the present species both sexes are completely black. Male and female. — Length of body, 10 millimeters in the male and 11 to 12 in the female; of wing, 8 in the male and 9.5 to 10.5 in the female. Head black, with gray dust on the occiput; eyes of the male united for a line shorter than in A. limbata; the frons in the male white-dusted above the antennae and deep black on fore half, in the female narrow, gray-dusted at vertex to the ocelli, deep black on middle, white-dusted above the antennae. Face white-dusted in both sexes, with the middle bulla more developed and more prominent in the female than in the male. Antennae entirely black, with long, thin black arista; palpi black, white-dusted and black-haired; proboscis wholly black. Hairs of the head black on frons and vertex, white on the occiput and below. Thorax entirely black, even on the humeral calli, in the male more intensively black and more shining than in female ; pleurae clothed with shining gray dust and with whitish hairs ; the hairs on the dorsum entirely black in the male, whitish on the hind half in female; above the humeri there is inward a narrow 6 Ann. Mus. Nat. Hung. (1912), 10, 445." 141802 2 18 PHILIPPINE DIPTERA, II velvety black patch, more distinct in female than in male ; meta- pleurse with thin and soft white hairs. Scutellum black, in the male shining and black-haired, in the female gray-dusted and whitish-haired. Mesophragma black, gray-dusted on the sides. Halteres black, their stalks yellow at base. Abdomen in both sexes entirely black, shining, even on venter ; the first two segments in the female gray-dusted, in both sexes the two last segments with a broad triangular spot of white dust on the upper side; abdominal hairs mainly whitish. Male genitalia black and black-haired. Legs with the coxae black; middle tibiae dark yellowish; four posterior femora with a yellow ring at end, which is narrow and less distinct in the male, broader in the female. Wings of the male with the basal half faintly yellowish hyaline, the apical half infuscated, more intensively infuscated toward the middle and thus forming a dark crossband below the stigma, which goes below the discoidal cell, the inner angle of the second submarginal being hyaline. In the female the wings are hyaline on the basal half, being only yellowish along the costal cell, and brown on the apical half; from the hyaline inner angle of the second submarginal cell begins a hyaline band which ends in the fourth posterior cell and, therefore, divides the dark part into two bands, united above and below ; in the first basal cell there is a dark band before the root of the third longitudinal vein. Stigma brownish in both sexes. Venation as in Atherix limbata, but the cubital fork is distinctly longer and provided with a shorter stalk. LUZON, Laguna, Los Banos and Mount Maquiling; Tayabas, Malinao (Baker) . Genus SCHIZELLA novum This new genus of the family Rhagionidse (Leptididse) is erected for a small fly that shows the general appearance of a Chrysopilus, differing in the form of the proboscis and chiefly in the extraordinary development of the third antennal joint; the latter character is noticeable because of the usual smallness of the antenna? in Chrysopilus. This elongated third joint is besides divided into two branches, forming a fork, a thing not rare in the family Tabanidae, but never observed in the Rhagio- nidse. The terminal style, which is long in Chrysopilus, is rudi- mentary in the new genus. The principal characters of the new genus are as follows: Head as in Chrysopilus, but distinctly more transverse, facial PHILIPPINE DIPTERA, II 19 bulla greatly developed and produced below, palpi small; pro- boscis with the terminal flaps much dilated, forming a sort of blister as great as the facial one, minutely transversely rugulose. Antennae with the two basal joints small and short; third joint enormously developed, longer than the breadth of head, and di- vided into two branches from the root; the upper branch is a little shorter, but not narrower than the inferior one, which bears at its end a short, almost rudimentary style (Plate I, fig. 1) . Eyes of the female without a trace of division; male unknown. Thorax, abdomen, and legs as in Chrysopilus ; hind tibiae with a single spur at end, the external one. Wings with the venation exactly as in Chrysopilm; anal cell closed and provided with a short stalk. Type, Schizella furcicornis sp. nov. 128. Schizella furcicornis sp. nov. Plate I, fig. 1. A small dark reddish and brown species with pale legs and grayish wings, which are a little spotted toward the middle. Female. — Length of body, 5 millimeters; of wing, 4.7; of an- tennae, 1.2. Head black, gray-dusted on the occiput and on the sides of the frons; facial bulla pale yellowish, white-dusted; palpi blackish; proboscis with whitish flaps; antennae with the two basal joints yellowish, the third brownish. Thorax dark reddish brown, the pleurae paler and clothed with whitish dust; it is entirely bare, even on metapleura, but it seems that on the hind part there is a short pubescence, with metallic reflections. Scutellum brownish. Halteres pale yellowish. Abdomen black- ish, rather shining, unicolorous, with short and few black hairs. Coxae and femora pale yellowish; tibiae and tarsi pale brownish. Wings grayish hyaline, iridescent, with brown veins; stigma of greater size, dark brown, filling up completely the end of the marginal cell. Below the stigma a short dark band, ending on base of the cubital fork; below this band a small dark spot at end of the discoidal cell ; besides, the apex of wings is broadly but faintly infuscated. Cubital fork very long and narrow, gradually broadened toward the end, its upper branch being bent at right angles at base and there provided with a short stump. Second posterior cell acute at base, narrow, and short, not broader and distinctly shorter than the third posterior cell; anterior cross vein short, placed near the base of the dis- coidal cell. I LUZON, Laguna, Mount Maquiling (Baker), one female. 20 PHILIPPINE DIPTERA, II 129. Chrysopilus luctuosus Brun. 1909. Male specimens from Mount Maquiling. They agree with the specimens from Formosa, referred by me 6 to the present species, described from Assam. Of the typical endemic species Chrysopilus correctus, recorded in the first century as No. 12, there are also specimens from Malinao, Tayabas, and from Butuan, Mindanao. The wing pat- tern seems to be variable in shape, remaining, however, of the same type ; in the Butuan specimens the wings have a yellow tint, which is less developed in other specimens. In the undescribed male the thorax and the scutellum are clothed with shining metallic tomentum. The eyes are united, but there is no distinct differentiation between upper and lower areolets, a character somewhat aberrant in Chrysopilus. 130. Chrysopilus diplostigma sp. nov. A small black species, distinguished by the peculiar abdominal pattern and by the enlarged stigmatic spot of the wings. Male. — Length of body, 5 millimeters; of wing, 5. Head black, dark gray-dusted on occiput and face; eyes bisected, united on a long line; ocellar tubercle very prominent, bare; antennae short, entirely black, with long, rather thick style; facial bulla shining black, ovate, gray on the sides; proboscis and palpi black, the latter black-haired. Thorax velvety black, rather shining, gray-dusted on sides and on the pleurae ; on dor- sum a trace of golden tomentum ; thorax entirely bare, with some black hairs on the metapleura. Scutellum like the thorax ; meso- phragma black, gray-dusted, with black hairs on the sides; halteres black, the stalk yellowish at the base. Abdomen black and black-haired; strongly shining, even on venter; the tergites have at base a broad velvety black band, which on the terminal segments is reduced to a middle spot ? genitalia black and black- haired. Coxae black, with black hairs; femora black, with nar- rowly yellow tips, and the four posterior ones with yellow bases, broadest on the hind pair; tibiae and tarsi long and dark yellowish; terminal spurs yellow. Wings grayish hyaline, with a faint yellowish tinge ; stigmatic spot broad, elongate, dark brown, filling up the entire end of the marginal cell; in addition, and in contact with the stigma, the end of the subcostal cell is dark brown, beginning at the end of the auxiliary vein. The rest of the wing immaculate. Cubital fork only a little longer than it's stalk, destitute of appendix at 6 Ann. Mus. Nat. Hung. (1912), 10, 449. PHILIPPINE DIPTERA, II 21 base; second posterior cell acute at base and longer than the third; the last shorter than the discoidal cell. Squamae pellucid brown, with pale fringe. LUZON, Laguna, Los Bafios (Baker). 131. Mydas fruhstorferi van der Wulp. 1896. Mount Maquiling. Two female specimens, which answer perfectly to the description of the species from Java. Species of the present genus seem to be very scarce in the Oriental Region, only two others being known: namely, one from India (ruficornis Wiedemann) and one from Celebes and Sumatra (basifascia Walker) ; but I have in my collection a species from Ceylon that differs from all the others in being entirely black with the last three abdominal segments wholly rufous. 132. Leptogaster princeps O. S. 1882. Specimens from Mount Banahao. A very distinct, endemic species, which may be considered as gigantic in its genus. 133. Saropogon mbricosus sp. nov. Very near S. jucundus van der Wulp, 1872 (vertebratus Bigot, 1878), from Java and Sumatra, but distinguished by the wholly rufous abdomen and hind legs. The apical spur of the front tibiae is very small and easily overlooked; thus van der Wulp has described this species as belonging to Habropogon, and Bigot placed it in Scylaticus, a fact recently noted by de Meijere, who has described another allied species from Java. Female. — Length of body, 11 millimeters; of wing, 10. Head black, with pale reddish face; the occiput clothed with dense whitish dust near the eyes; frons shining on the middle and white at the eye borders; face clothed with dense whitish dust with a yellowish sheen. Antennae entirely black, the first two joints with black hairs, the third linear, longer than the first two together. Mystax formed by only four pale yellowish bristles; proboscis and palpi black, the latter with yellowish hairs, ocellar bristles black. Thorax and scutellum entirely shin- ing reddish, only the humeral calli with a broad shining black spot; collar with yellowish bristles and a brown spot on each side; macrochaetae black, those of the dorsocentral rows rather long and much produced over the suture; pleurae with scanty yellowish tomentum; metapleura with yellow bristles. Scutel- lum with two strong black apical macrochaetae ; mesophragma reddish, gray-dusted. Halteres yellowish. Abdomen cylindric, of the same color as the thorax, shining 22 PHILIPPINE DIPTERA, II above, opaque on venter, destitute of any dark marking* its hairs entirely pale; spines of the ovipositor red. Legs with the coxae entirely reddish, only a small ring on the trocanters and on the knees being black; their hairs and bristles entirely reddish; hind femora with a single long bristle below near the base. Terminal spur of front tibiae black, small, curved, distinct only at the outer side; claws black, with narrowly red base; pulvilli yellow. Wings hyaline, with a faint yellowish tinge; veins brown; fourth posterior cell widely open at end; anterior cross vein on the first third of the discoidal cell ; second longitudinal vein per- fectly straight at end. LUZON, Tayabas, Mount Banahao (Baker). 134. Saropogon specularis sp. nov. A pretty, variegated species of small size, distinguished by the glistening, specular sternopleura. This cannot be the male of S. rubricosiis, as is shown by the different mystax, different spur of front tibiae, and more numerous spines of the hind femora. Male. — Length of body, 9 to 10 millimeters; of wing, 8.5 to 9. Head entirely black, clothed with gray dust on the face, on the sides of the frons, and on the occiput; ocellar and occipital bristles black ; antennae entirely black, the two basal joints with black bristles, the third joint linear, almost twice as long as the first two together. Mystax formed by eight or nine yellowish bristles, disposed in a single row at the mouth border; palpi black and black-haired; proboscis black. » Thorax black, with the humeral calli narrowly reddish; on the collar and on the dorsum clothed by dense dark ochraceous tomentum, without defined pattern ; on the pleurae the tomentum scantier and light gray, only the sternopleura being glabrous and shining black; bristles of the collar black; thoracic macro- chaetae black, one praesutural, one anterior supra-alar, one pos- terior supra-alar, the dorsocentrals disposed on a line much produced forward, but shorter than in S. rubricosics. Meta- pleural bristles yellowish. Scutellum shining black, gray-dusted above, yellowish along the hind border, with a pair of strong black apical macrochaetae. Mesophragma black, densely gray- dusted. Halteres brownish yellow. Abdomen distinctly spatulate, shining, with very short, dark and pale hairs; first segment black, with a narrow yellowish hind border and a strong black bristle on each side; second segment yellow, with a broad black basal band, the last pro- PHILIPPINE DIPTERA, II 23 duced behind on the sides; third segment yellow, with a tri- angular black spot at base on each side, sometimes less distinct; fourth to seventh segments black, with a yellow hind border, which becomes gradually broader on the last segments ; genitalia black, with whitish pubescence; venter black, the second and third segments almost entirely yellow, with rather long, pale yellowish hairs. Coxae shining yellowish, the posterior four with a broad black spot outside and the front pair with long whitish hairs; all the trocanters reddish yellow; all the femora black, strongly shining, with reddish tips, with some pale hairs, and those of the hind pair with four or five strong black bristles at end below and before; tibiae yellowish, with long black bristles; spur of the front tibiae black, stronger than in S. rubricosus, and not curved outward ; tarsi dark reddish, with black ends ; claws black, with red bases ; pulvilli yellow. Wings grayish hyaline, iridescent, with black veins; fourth posterior cell at end as broad as the second ; discoidal cell narrow, the anterior cross vein placed near its middle; anal cell very narrow at end ; second longitudinal vein distinctly bent forward at end. LUZON, Laguna, Mount Banahao. MINDANAO, Butuan (Baker) . 135. Damalina semperi O. S. 1882. Mount Banahao. A very peculiar, endemic insect. 136. Xenomyza vitripennis 0. S. 1882. Numerous specimens of both sexes from Baguio, Benguet, and from Mount Maquiling, Laguna. The species seems to be very variable in the color of the legs, which varies from entirely black to entirely red or yellowish to variations of these colors. It was recently recorded also from Formosa, and the specimens from there were also very variable. As the type of the genus Damalis was established by Westwood to be the South American species D. curvipes Fabricius, the name Xenomyza Wiedemann 7 must be used for the oriental species. 137. Epholchiolaphria vulcanus Wied. 1828. Butuan, Mindanao. This species is widely spread over the Malay Archipelago and is recorded also from Formosa. It is notable that in these Philippine specimens the bristles of the mystax are all yellow, instead of black, as they were originally 7 See Coquillett, Proc. U. S. Nat. Mus. (1910), 37, 530. 24 PHILIPPINE DIPTERA, II described by Wiedemann. I refer them provisionally to the present species because of the great variability attributed to it.8 138. Epholchiolaphria leucoprocta Wied. 1828. Los Bafios and Mount Maquiling, Luzon. Even in these speci- mens the mystax is yellow instead of black. The present species is considered by Hermann to be only a form of E. vulcanus. But these Philippine specimens are well distinguished by the scutellum and the two basal abdominal segments being clothed with argenteous hairs, which in the female are of a golden color ; on the second segment these hairs are present only at sides and at hind border. 139. Epholchiolaphria partialis nom. nov. (partita Walker, 1860, not of same author, 1857, Borneo) . Numerous specimens from Mount Maquiling, Laguna, and Malinao, Tayabas, Luzon; and from Cagayan, Mindanao. De- scribed from Celebes, but recorded from the Philippines by Osten Sacken. It is very closely allied to Laphria dimidiata Macquart, No. 13 of the first "century," which belongs also to Epholchiolaphria Hermann, and of which there are also numerous other specimens from Mount Maquiling, Laguna, and Malinao, Tayabas, Luzon; and from Dapitan and Butuan, Mindanao. 140. Epholchiolaphria aurifacies Macq. 1848. Los Banos. Widely spread over the Malay Archipelago and usually referred to the genus Maira. These specimens answer also to the description of azurea Hermann, 1914, from Formosa. 141. Smeringolaphria alternans Wied. 1828. Dapitan, Mindanao. Widely spread over the Oriental Region and recorded also from Formosa. 142. Anisosis phalaris 0. S. 1882. Mount Maquiling, Luzon. A very characteristic, endemic species. The name Anisosis Hermann, 1914, is preoccupied by Anisosis Deyrolle, 1857, in the Coleoptera. 143. Orthogonis scapularis Wied. 1828. Mount Maquiling, Luzon. Widely spread over the Asiatic Archipelago to New Guinea. 144. Pogonosoma cyanogaster sp. nov. This new species is closely allied to P. bleekeri Doleschall from Amboina and to P. semifuscum van der Wulp from Batjan, but 8 See Hermann, Entom. Mitteil (1914), 3, 107. PHILIPPINE DIPTERA, II 25 is at once distinguished by the cyaneous white-pubescent abdo- men. The recently described funebre Hermann from Formosa is also largely black and has black pubescence on the abdomen. Female. — Length of body, 14 millimeters ; of wing, 14. Head black, gray-dusted ; ocellar tubercle shining black, with two long black bristles; occiput above with some black bristles, below with white hairs, which pass to the long white beard. Antennse entirely black, the first two joints with long bristles, the third joint oval, as long as the first two together. Face with a very prominent, oval, shining black tubercle, which bears a mystax formed by from ten to twelve long black bristles ; the remaining hairs of the face black below the base of the antennae and white on the sides beneath. Palpi black, with short black hairs; proboscis black, very stout, of the characteristic shape for the genus, with long white hairs at the underside of the basal bulb and with short yellow pubescence at the end. Thorax black, rather opaque, with faint metallic reflections and scanty whitish dust, without distinct stripes ; bristles black ; hairs black, but white on the sides and behind; collar gray- dusted, with numerous black bristles; pleurae white-haired and white-dusted; a strong black bristle on the upper hind corner of mesopleura ; metapleural tuft formed by white bristles. Scu- tellum like the thorax, but more metallic and with black bristles at hind border ; mesophragma black, gray-dusted. Halteres with blackish stalk and yellowish knob. Abdomen entirely shining ceruleous, with short white pubes- cence; the hind lateral corners of segments two to' five bear short, spotlike stripes of whitish tomentum; all the segments have on the sides rather long white hairs and two or three strong black middle bristles. Venter wholly shining ceruleous, whitish-dusted and white-haired at base, black-haired at end. Ovipositor with the first segment dark ceruleous and with long black bristly hairs at end, the second segment black with pale yellowish hairs. Legs shining, dark ceruleous, with long white hairs and with black bristles; coxae black, densely gray-dusted; hind femora thickened, with a single, very strong black bristle beyond middle on outer side ; middle femora with a long bristle before end on inner side; claws black, pulvilli dark yellowish. Wings hyaline from base to middle, fuscous on the apical half, the inner border of colored area running from the fore margin of wing in front of the anterior cross vein to the hind margin at end of fourth posterior cell; the centers of the cells around the apex and the hind margin lighter. Discoidal cell shorter and narrower than the second posterior cell, the anterior 26 PHILIPPINE DIPTERA, II cross vein situated on its first third; first posterior cell very long and narrow and rather narrowed at end; cross vein at end of the fourth posterior cell short and parallel with the pos- terior cross vein ; stalk of the anal cell shorter than that of the fourth posterior cell. Veins black. LUZON, Tayabas, Mount Banahao (Baker) . 145. Promachus forcipatus Schin. 1868. Los Banos and Mount Maquiling, Laguna, and Baguio, Ben- guet. A common endemic species, very characteristic by the ex- traordinary shape of the male genitalia. 146. Promachus bifasciatus Macq. 1838. One female specimen from Cagayan, Mindanao. Known from Celebes and Java and new for the Philippines, but it is probably the species of which Osten Sacken says : "Resembles bifasciatus Macq., but is certainly different." The present specimen belongs surely to this species so far as can be judged from females only. 147. Systropus 9 valdezi sp. nov. Qne female specimen from Baguio, Benguet. Named in honor of Julian Valdez y Hernandez, Professor Baker's Cuban collector. Nearly allied to the species that in the first century, No. 17, I assumed to be S. sphecoides Walker, but differing in the pat- tern of thorax, which shows four yellow spots at the four angles of the dorsum, and in the legs being much more yellow. Female. — Length of body, 16 millimeters; of wing, 13. Oc- ciput black, gray-dusted; ocellar tubercle dark reddish; eyes less produced above, united for a distance as long as the frontal triangle; the latter blackish, white-dusted on middle, yellow below on the antennal tubercle; face pale yellow, with whitish hairs; jowls whitish with shining white dust and with hairs; mentum yellow, with long whitish beard. Antennae black, the first joint narrowly yellow at base, with blackish hairs, more than three times as long as the second; third joint wanting in the type. Palpi yellowish ; proboscis black, but reddish below on the apical half. Thorax black, opaque, finely punctulate, with three less dis- tinct, broad, longitudinal grayish stripes; humeral calli yellow, and above them a broad yellow stripe, which is produced inward, reaching almost the middle line of dorsum ; on the postalar calli there is a broad, triangular yellow spot; pleurae black, gray- 8 This generic name was misprinted in the first century, Phil. Journ. Sci., Sec. D (1913), 8, 313. PHILIPPINE DIPTERA, II 27 dusted, with a yellow stripe from the humeri to the front coxae. Metasternum black, with transverse furrows and long and dense pale yellowish pubescence. Scutellum like the thorax, with whitish pubescence at hind border; mesophragma black, with the usual yellow tubercles on each side. Halteres yellowish, with the knob black above. Abdomen provided with a long stalk, which is formed by the first three segments and besides by the basal part of fourth ; it is entirely black, opaque, the four basal segments being dark yellow at sides and below. Front legs entirely yellow, but their coxae black, like those of the other pairs; middle legs with black femora, which have yellow ends, and with yellow tibiae and tarsi; hind legs with the femora black above, reddish below, and yellow at ends with the tibiae yellow, but adorned with a broad black middle ring; praetarsus yellow, with black end, the other joints black; tibial spines 8, 6, 6. Wings uniformly but faintly infuscated, a little more intensively at. base and fore border; veins black. LUZON, Mountain Province, Baguio (Baker) . Note. — The species believed to be S. sphecoides, of which there are also specimens from Mount Banahao, differs from S. valdezi only in the following points : The eyes are more produced above and are united for a line longer than the frontal triangle; the head, therefore, seems to be more acute above, viewed from be- fore. The yellow stripes in front of the dorsum and the spots on the postalar calli are entirely wanting or only indicated by a dark yellowish, less distinct trace ; the metasternum is distinctly bluish, more furrowed, and less pubescent. The front legs have the femora more broadly blackish toward the base; the hind tibiae are black, with narrowly reddish base and yellow tip ; the hind tarsi are entirely black, the praetarsi being only narrowly yellow at base. The infuscation of the wings is more intensive. 148. Toxophora zilpa Walk. 1849. One female specimen from Mount Maquiling. Described from China and not recorded subsequently; nearly allied to T. javana Wiedemann from Java, but it seems to be distinguished by the golden, not whitish, abdominal stripes and by the complete transverse band of the same color on the last abdominal segment. 149. Petrorossia fulvula Wied. 1821. Numerous specimens of both sexes from Mount Maquiling and Malinao, Luzon, and Dapitan, Mindanao. Widely spread over the Oriental Region and known to me also from Formosa. The species was originally described as an Anthrax and was 28 PHILIPPINE DIPTERA, II subsequently placed in Argyramceba by de Meijere, but it belongs without doubt to the present genus, being closely allied to the Ethiopian species fulvipes Loew and gratiosa Bezzi. 150. Exoprosopa pennipes Wied. 1821. Los Banos. A characteristic species, widely spread over the Oriental Region, but not yet recorded from the Philippines. 151. Melanostomus orientale Wied. 1824. Baguio, Benguet. This species, as redescribed by de Meijere, seems to be the oriental representative of the common M. melli- num Linnaeus, and I am not sure if it may be considered as speci- fically distinct. 152. Asarcina eurytaeniata Bezzi. 1908. Mount Maquiling. These specimens are the same as my type from Malacca. Syrphus striatus of Osten Sacken's paper, page 115, and therefore Asarcius consequens of my enumeration in the first century, are almost certainly the same as the present species. 153. Axona chalcopyga Wied. 1830. Dapitan, Mindanao. An immature specimen, in which the beautiful blue coloration of the mature insect is not yet developed. This is a very characteristic species, more like a Volucella than an Eristalis; it is widely spread over the Malay Archipelago and originally was described from Manila, but subsequently has not been recorded from the Philippines. 154. Milesia reinwardtii Wied. 1824. Baguio, Benguet. Known from Java, Malacca, and Borneo, but new for the Philippine Islands. 155. Milesia conspicienda Walk. 1860. Butuan, Mindanao. The species already recorded from the Philippine Islands with doubt by Osten Sacken is without doubt the present species, which was described from Celebes. 156. Milesia bigoti 0. S. 1882. Los Banos and Mount Maquiling. An endemic species, very different from the last two and belonging to another group. 157. Tricholyza sorbillans Wied. 1830. Mount Maquiling, Luzon; bred by Professor Baker from a cocoon of Attacus atlas. It is interesting to find this species living also in the Philippines, in as much as it is widely spread PHILIPPINE DIPTERA, II 29 over the Palsearctic, Ethiopian, and Oriental Regions. The species has received various names and has been bred from different Lepidoptera, being also known as a parasite of the silkworm. 158. Sarcophaga ruficornis Fabr. 1794. LUZON, Rizal, Alabang (Mitzmairi) . The same as Indian specimens of this species in my collection, but I have not studied the male genitalia. This is a species of economic importance, which is known to produce severe forms of myiasis in India. 159. Rhinia testacea R. D. 1830. LUZON, Rizal, Alabang (Mitzmain) . Corresponding perfectly with Ethiopian specimens in my collection ; known in the Oriental Region from the Nicobar and Key Islands. 160. Thelychaeta viridiaurea Wied. 1824. LUZON, Laguna, Los Bafios and Mount Maquiling (Baker) ; Rizal, Alabang (Mitzmain). A beautiful species, originally described from India, which seems to be spread over the entire Oriental Region. New for the Philippines. 161. Compsomyia dux Esch. 1822. LUZON, Laguna, Los Banos and Mount Maquiling; Benguet, Baguio (Baker) ; Rizal, Alabang (Mitzmain) . Common in the Orient. Originally described as a Musca and subsequently re- ferred to Lucilla, or to Chrysomyia, or to Pycnosoma; but as Coquillett states that this species is the type of Compsomyia,10 it seems at present better to reserve this generic name for the species with enlarged areolets near the eyes of the male. They are prevalently oriental. The Ethiopian species of the group marginalis can retain the name Pycnosoma, and the Neotropical species of the group macellaria can retain that of Chrysomyia. 162. Philaematomyia crassirostris Stein. 1903. LUZON, Laguna, Mount Maquiling (Baker) ; Rizal, Alabang (Mitzmain). A common species, known from India and Java, but certainly spread over all the Oriental Region as well as the Mediterranean and Ethiopian Regions. 163. Philaematomyia inferior Stein. 1909. LEYTE, Tacloban (Baker) ; LUZON, Rizal, Alabang (Mitz- main) . This species was described from Java ; it seems to 10 However, Brauer and Bergenstamm claimed, before the time of Co- quillett, that the type of Compsomyia was macellaria. 30 PHILIPPINE DIPTERA, II be widely spread in the Orient, like the preceding. It was first described in the genus Mmca; but according to Patton and Cragg,11 who have redescribed it under the name gurnei, it be- longs to the present genus, notwithstanding the form of the proboscis, which on macroscopic examination seems to be very different from that of the type species. 164. Stomoxys nigra Macq. 1851. Los Banos. This common Ethiopian blood-sucking fly seems to be widely spread in the Oriental Region, being recorded by Summers as one of the commoner species at Kuala Lumpur, Federated Malay States. 165. Lyperosia exigua de Meij. 1903. LUZON, Laguna, Los Banos (Baker) ; Rizal, Alabang (Mitz- main) . A common blood-sucking fly of the Orient. 166. Mydsea duplicata Meig. 1826. Numerous specimens of both sexes from Baguio, Benguet. The only difference from the European specimens, that I can perceive, is that the female is darker and has darker legs and a little broader frons. The present species is not to be con- founded with M. duplex Stein from New Guinea, which has only posterior dorsocentral bristles. 167. Orchisia costata Meig. 1826. Specimens of both sexes from Mount Maquiling, Laguna, and from Baguio, Benguet. This species is rare in central Europe, more common in southern Europe, and was described as Ccenosia marginata by Wiedemann from southern China. It was not without emotion that I found in Professor Baker's collection specimens of this pretty fly, identical with those which I find here in the alpine valley of Susa, near Turin, on swampy places, over Mentha and other aromatic herbage. It is interesting to note that at Baguio, Benguet, are to be found three European flies: namely, Melanostoma mellinum (orientate), Mydzea duplicata, and Orchisia costata. 168. Amphicyphus reticulatus Dol. 1856. Mount Maquiling. Identical with specimens from Calcutta, India, in my collection; described from Borneo as an Ensima, and subsequently recorded from Java. ulnd. Journ. Mcd. Res. (1913), 1, 3. PHILIPPINE DIPTERA, II 31 169. Campylocera thoracalis Hendel, 1913, var. rufina var. nov. Female. — Similar to the type of the species from Maao, Negros (C. S. Banks), in the British Museum, but differing in the color- ation of mesonotum. The four shining black longitudinal stripes are in the present variety of a shining reddish color, which sometimes is only very little darker than the surrounding parts, and therefore the stripes are hardly visible. Chaetotaxy of head (not distinct in Hendel's type) : Three ocellars, all bent forward; one superior frontoorbital, bent forward; one post- vertical, diverging outwardly; one inner vertical, directed in- wardly; one outer vertical, smaller and directed outwardly. LUZON, Laguna, Mount Maquiling (Baker). Genus TYLOPTERNA novum This genus is erected for an aberrant ortalid, which shows a very extraordinary appearance, having only a remote resem- blance in the shape of head to the Ethiopian genus Pterageno- myia Hendel, which is assigned by its author to the tribe Trapherinae. Head broader than the thorax, truncate anteriorly, being in profile view exceedingly narrow, while in front view it has the aspect of the specimen figured by Hendel,12 but it is less produced upward. Head broader than high, having more the shape of a rectangle than that of a trapezium. Occiput little convex and the neck short, the head, therefore, being close to the thorax. Frons broad, slightly concave, placed in the same line with the face, lower than the eyes ; the ocelli disposed in a small triangle, being very close together, and placed on the middle of the vertical keel, almost at equal distances from neck and from face of antennae. Eyes bare, rather small, twice as high as broad. Face a little shorter than the frons, but considerably broader, the eyes showing a prominent angle inward on the line of the antennae; face concave, not at all prominent even at mouth border, and on the sides produced into a short point below the under corner of eyes. Lunula linear, concealed. Antennae very short, close together at base, inserted at middle of eyes, directed outward, the third joint almost circular and as long as the second; second with a bristle above at end; arista basal, long, thin, microsco- pically pubescent. Antennal furrows horizontal, directed out- ward, placed just below the dividing line between frons and face, and parallel with this line. Oral opening retreating, con- 12 Genera Insectorum, Platystominae, Plate III, fig. 48. 32 PHILIPPINE DIPTERA, II cealed behind the straight edge of mouth ; praelabrum not visible ; proboscis proportionally small ; palpi dilated at end. Chsetotaxy of head reduced to a single pair of vertical bristles, placed out- ward, near the eyes. Thorax short, subquadrate, slightly convex; suture slightly caudad of middle, broadly interrupted ; humeral calli prominent ; pleurae regularly convex. Thoracic chsetotaxy not well distin- guishable in the type, only the anterior supra-alar being distinct, but rather thin. Scutellum of great size, as long as broad at base, flat, simple, with two pairs of bristles near the end. Meso- phragma small, less convex, subquadrate. Squamae rudimen- tary ; halteres with a large knob. Abdomen short, narrower than thorax, and a little constricted toward the base; hypopygium ventral, of medium size. Legs of proportional size, simple; middle tibiae without distinct apical spur. Wings of great size, rather obtuse at end, hyaline, with black spots formed by rounded chitinous tubercles, and besides with a long strong spine (Plate I, fig. 2a) on lower surface in the second posterior cell. Veins bare; auxiliary vein very thin and less distinct; second longitudinal vein long, third and fourth rather sinuous, fifth very short, sixth wholly wanting; second basal and anal cells very narrow, narrowed to the base and almost indistinct. It is possible that the peculiar chitinous black calli of the wings, or at least the long spine of the underside, are found ex- clusively in the male ; the female is at present unknown. Type, Tylopterna monstrosum sp. nov. 170. Tylopterna monstrosum sp. nov. Plate I, fig. 2. A curious little fly, of strange aspect and coloration. Male. — Length of body, 2.8 millimeters ; of wing, 3 ; breadth of wing, 1.2. Posterior part of head shining brownish, with a broad, rounded yellow spot beneath the vertex and with a broad yellow stripe at eye border, which unites below with the pale yellowish lower half of head. Anterior part of head whitish yellow, divided into two parts by a broad black horizontal line, which divides the frons from the face, and in which are placed the black antennae. Arista pale yellowish. Proboscis yellowish, palpi whitish. Short pubescence of head whitish ; vertical bris- tles black. Thorax shining black, smooth, with reddish brown pleurae; pubescence whitish, bristles black. Scutellum shining black, with the sides and the underside pale yellowish, mesophragma shining black ; halteres whitish. Abdomen uniformly shining black, with PHILIPPINE DIPTERA, II 33 whitish pubescence and rather long whitish hairs on the sides; hypopygium black; venter pale yellowish. Legs with the coxae and the tarsi pale yellowish, but the hind femora and the hind tibiae black, the last with yellowish ends; front and middle femora with a subterminal brown streak above; pubescence short, whitish. Wings grayish hyaline, iridescent, with yellowish veins and colorless stigma. End of the marginal cell filled by a large deep black spot, which is at least in part callously chitinized. The two chitinous calli deep black, rounded, and placed near the hind border, the smaller before upper end of second posterior cell, the larger at lower inner end of same cell, just at the angle between posterior cross vein and last section of fifth vein. On the underside of wing a strong, straight, chitinous spine, placed on middle of second posteror cell, below the angle of the pos- terior cross vein with the fourth longitudnal vein, and directed inward. This spine is black, but its broadened basal part is grayish hyaline, like the wing membrane ; its length is about 0.5 millimeter. LUZON, Laguna, Mount Maquiling (Baker} , one male. 171. Antineura sericata O. S. 1882. Cagayan, Mindanao. A beautiful endemic species of great size. The ortalid genus Antineura also may be considered as endemic, as the other species are generically different and must be placed in Adantineura Hendel. 172. Xenaspis polistes O. S. 1882. Malinao, Tayabas, Luzon, and Butuan, Mindanao. Another endemic and very characteristic species of great size, very much like a vespid. 173. Xenaspis extranea sp. nov. This species is not unlike X. polistes Osten Sacken in general aspect and coloration, but differs in having the apical cross vein of the second basal cell less oblique. This fact is in relation with the other that the wings in the present species are not susceptible of being folded along the middle line as they are in polistes, which gives the latter its wasplike appearance. The present new species agrees with polistes also in lacking praescu- tellar bristles, but it has a well-developed mesopleural bristle. Female. — Length of body (without ovipositor) , 10 to 12 milli- meters; of wing, 8 to 10; of ovipositor, 1.5 to 2. Head entirely reddish yellow, rather shining on the occiput, the latter with two small black parallel streaks on the middle extending from 141802 3 31 PHILIPPINE DIPTERA, II the neck to the sides of the vertex; frons opaque, darker in the middle, with short yellowish pubescence; ocellar dot black; the two pairs of vertical bristles, the only macrochsetse of the head, black; face pale yellowish in the middle, reddish on cheeks and on the sides below ; antennal grooves with a long black streak at lower end. Antennae a little longer than half the face, entirely pale yellow. Third joint somewhat attenuated at end, with a long, thin basal arista, which is shortly pilose above on the basal third. Palpi reddish, with darker base and yellow hairs; proboscis thickened and dirty yellowish brown. Mesonotum entirely reddish yellow, darker on dorsum and with short yellowish pubescence; humeral calli, a longitudinal stripe above the notopleural line, a broad and oblique meso- pleural stripe ending at the sternopleural suture, and two broad, contiguous stripes rounded by propleural spots yellow. Scutel- lum entirely yellow, with the base narrowly reddish brown; mesophragma shining reddish. Macrochsetse black — two noto- pleurals, three supra-alars, one mesopleural, and one scutellar apical ; sometimes exterior scapular bristles on one side only, the humeral always wanting ; scutellum sometimes with two or three more bristles near the end; sometimes also a weak praescutellar bristle on one side only. Halteres yellowish. Abdomen longer than thorax, distinctly narrowed at base, but not properly stalked ; it is entirely reddish yellow, with short yellowish pubes- cence ; the posterior part of first segment and the two following segments almost entirely occupied by a dark brown transverse band, which is sometimes interrupted in the middle, forming two broad blackish spots on each segment. Ovipositor broad, flattened, entirely reddish; venter blackish brown. Legs yel- lowish, coxae reddish, tibiae darkened, tarsi blackish at end; apical spur of middle tibiae black. Wings with a uniform yellowish tinge, which becomes brown- ish along the fore border from base to apex, where it is dilated to form an elongate spot, which surpasses the third longitudinal vein, reaching almost the fourth vein ; third and fourth longitu- dinal veins slightly converging toward the end, the first posterior cell being, therefore, a little narrowed outwardly; anterior cross vein distinctly before the middle of the very long and narrow discoidal cell; apical cross vein of the second basal cell only a little more oblique than that of the anal cell, the last being perpendicular to the anal vein. Last two sections of the fourth longitudinal vein practically of the same length, second section considerably shorter than the third. LUZON, Laguna, Mount Maquiling (Baker} . PHILIPPINE DIPTERA, II 35 174. Elassogaster plagiata sp. nov. A species with the facies of a Stencypterina, with complete thoracic suture, and with a small, oblique, anterior cross vein (almost as in Elassogaster trivittata) , distinct from any other species of its genus because of the broad fuscous patch on wings in front of the posterior cross vein. Female. — Length of body, 10 millimeters; of wing, 8. Head black, opaque, and deep black on frontal band, gray-dusted on face, and shining bluish on occiput, which shows a whitish-dusted border near the eyes. Vertex gray with two equal parts of strong, but short, black bristles; no other bristles on head. Frons with short shining yellowish pubescence along the middle line and above the antennse. Antennae inserted a little below the middle of eyes, shorter than the face ; the two basal joints dark reddish brown ; the third black, gray-dusted, obtuse at end, with a basal dark yellowish arista, which is shortly plumose on the basal two thirds. Praslabrum transverse, shining black; palpi and proboscis black. Thorax and scutellum dull bluish black, the pleura a little shining and a little greenish, the sternopleura and a transverse band gray; bristles black, the scutellum with the apical pair alone. Mesophragma shining black. Halteres whitish, with the stalk black near the base. Abdomen of the same color as thorax, with a soft white pubescence ; the first segment with the basal part restricted to form a distinct stalk and black in the apical half, ovipositor blackish brown. Legs uniform bluish black with short gray dust ; front femora not bristly below ; spur of middle tibiae long. Wings hyaline, with a faint yellowish tinge and with the veins black ; costal cell brownish, subcostal cell black ; at apex a short brown apical border, which begins as a very narrow line after end of second vein and, becoming gradually broader, ends at the fourth vein, where it is truncate and incloses a broad, sub- hyaline patch in the apical part of first posterior cell. The cross veins not infuscated; in front of and in contact with the posterior cross vein a broad fuscous band, which begins near the middle of first posterior cell and ends at hind border. Cross veins at end of second basal and of anal cell perfectly straight and placed on the same right line. LUZON, Laguna, Mount Maquiling (Baker). 175. Scelostenopterina femorata Hend. 1914. A single male specimen from Mount Banahao seems to belong to the present species, which was briefly described by Hendel 36 PHILIPPINE DIPTERA, II from Sulu Island from a unique mutilated specimen in the British Museum. Length of body, 9.2 millimeters. Antennae shorter than the face and entirely yellow. Abdomen very like that of Stenop- terina, shining bluish green, white-pubescent, with two or three long, bristly black hairs on middle of the sides of first segment. Front coxse reddish, like the fourth anterior femora; all the tibia? and the tarsi dull black ; hind femora shining bluish green. 176. Pseudepicausta chalybea Dol. 1858. Dapitan, Mindanao, and Puerto Princesa, Palawan. Widely spread over the Malay Archipelago to New Guinea and already re- corded from the Philippines as a Stenopterina by Osten Sacken. 177. Scotinosoma typicum sp. nov. Hendel has revised this Loewian genus, which had been with- out a type, for an Australian species. But in the present col- lection there is a small fly which seems much better to agree with Loew's conception, being almost a Rivellia without sinuosity of the second section of the fourth longitudinal vein and with a very narrow marginal cell. The pattern of wings is the same as described by Loew ; but it must be recorded that in the Oriental Region there are some species of true Rivellia, like costalis Hendel, which show an analogous pattern on wings. Female. — Length of body, 3 millimeters; of wing, 3. Head entirely black, only the broad frontal stripes being dark reddish brown in middle and in front ; f rons narrower than an eye, with parallel sides or only a little narrowed near the antennae ; lunula deep black ; antennae free, inserted at the middle of eyes, shaped as in Rivellia, as long as the face, the third joint becoming gradually attenuated, with a basal, microscopically pubescent arista. Praelabrum greatly developed, but retracted, shining black; palpi and proboscis black. Bristles of head black, two pairs of frontoorbitals directed backward, ocellar short, post- vertical small, two pairs of strong and long verticals, the inner pair converging; frontal hairs scattered. Mesonotum longer than broad, little convex, entirely of a rather shining greenish color, more black on the pleurae; the short hairs along the dorsocentral lines black and extended to the fore border; macrochaetae black, one humeral, two notopleu- rals, three supra-alars, one dorsocentral, but I cannot perceive a trace of mesopleural. Scutellum colored like the dorsum of mesonotum, bare, with four long black marginal bristles. Mesophragma shining black, with faint metallic reflections. Squamae small, white ; halteres yellowish. PHILIPPINE DIPTERA, II 37 Abdomen a little longer but not broader than the thorax, dis- tinctly narrowed at base, scarcely punctulate, entirely shining black-aeneous, with a purple band at base of third segment; pubescence short and pale ; venter dull black ; ovipositor shining black-aeneous, flattened. Legs proportionally long, simple, en- tirely black, only the basal joints of all the tarsi dark reddish brown; apical spur of middle tibi« well developed, black. Wings hyaline, iridescent with a black fore border which fills the costal, subcostal, and the base of the marginal cell, ending at the apex of first longitudinal vein ; besides there is an elongate, apical brown spot filling the extreme end of submarginal cell and extending a little over the third vein, where it ends truncately. Veins pale yellowish with the exception of the first three, which are blackish ; first vein ending a little before the middle of wing and near to the costa ; second vein rather short and near to the first and to the costa, the marginal cell being thus exceedingly narrow, almost linear, not broader than the costal cell; third vein long, ending at apex of wing, perfectly straight, the sub- marginal cell broader than the first posterior cell, which is faintly dilated at end ; fourth vein entirely straight, without any curvature in the discoidal cell on its second section ; fifth vein short, divering; sixth extended to the hind border. Discoidal cell very short, of almost triangular shape ; cross veins very close together, the outer one placed after middle of discoidal cell, and its distance from the posterior considerably shorter than the length of the posterior cross vein itself; anal cell a little shorter than the second basal, its terminal vein a little bent outward in the middle. MINDANAO, Dapitan (Baker). 178. Bivellia hendeliana sp. nov. Nearly allied to the endemic species R. fusca Thomson, but at once distinguished by the second dark band of the wings being twice as broad, and very like that of the Ethiopian species, R. latifascia Hendel,13 but not reaching the hind border. Named in honor of Friedrich Hendel, of Vienna, whose marvellous work on the Ortalidas, and chiefly on the Platystominae, has rendered possible the determination of the beautiful flies of this family. Male and female. — Length of body, 3.8 to 4 millimeters; of wing, 3.5 to 3.7. Head entirely black; occiput rather shining, with an argenteous border at eyes, which begins near the middle with a short horizontal line and is continued below to the chin ; 13 Op. cit., Plate II, fig. 30. 38 PHILIPPINE DIPTERA, II frons with the broad middle stripe dark reddish brown, more distinct in the male than in the female, and with a narrow argenteous lateral line, which is continued below on the narrow cheeks; face with whitish dust, shining black below; antennae black, only a little dark reddish at base, with a dark, microsco- pically pubescent arista; praelabrum shining black; proboscis and palpi black, the last with narrow yellowish apical borders; bristles black. Thorax and scutellum shining black, with faint dark gray pollen and black hairs and bristles; pleurae and mesophragma shining black. Squamae white; halteres yellowish. Abdomen entirely shining black in the female, with the base broadly orange reddish in the male; the short pubescence pale; male genitalia black with yellow penis; ovipositor dull black. Legs black, the tarsi entirely whitish in the male, with the last three joints blackish in the female. Wings exactly as in R. fusca, only second dark crossband is much broader than the two con- tiguous hyaline spaces and passes below the fifth longitudinal vein, ending toward the middle of the third posterior cell. LUZON, Laguna, Los Banos (Baker). 179. Loxoneura decora Fabr., 1805, var. bakeri var. nov. About the same as small specimens of L. decora, but distin- guishable as follows: Male. — Frons slightly but distinctly narrower; third antennal joint proportionally shorter and broader; antennae considerably shorter than the face; mesonotum without anterior band of white dust; pleurae destitute of shining white pollen. Tibiae of male with no distinct tubercle above end. In the wing pattern there are the two following considerable differences : a, the yellow patch at fore border is continuous, not at all interrupted by dark and hyaline spots; b, the brown pattern around the anal cell is much broader, extending as a broad band along the anal vein and reaching the hind border. The sexual differences in wing pattern described by Hendel from Javan specimens are quite absent; thus the middle of the second posterior cell is wholly hyaline, without any oblique dark band ; the brown border of the fifth longitudinal vein has below toward its middle no dentiform projection.14 The discoidal cell is completely infuscate only in its distal eighth part. PALAWAN, Puerto Princesa (Baker). 11 But in the male specimens of typical L. decora from Singapore in my collection these sexual characters are also absent. PHILIPPINE DIPTERA, II 39 180. Lamprogaster placida Walk. 1849. Female. — A specimen from Butuan, Mindanao, answers rather well to the short original description of this endemic species, which is the only member of this very large oriental genus as yet found in the Islands; but Osten Sacken records another, un- named species. The brown wing pattern consists in an irregular band at base of the first basal cell, continued below over the basal and anal cross veins ; a narrow oblique band, which begin- ning at middle of the blackish browrn stigma encroaches on the anterior cross vein and ends a little distad of the fourth longitu- dinal vein ; a narrow, complete border of the posterior cross vein and a short streak at fore border just opposite to it ending a little before the third longitudinal vein ; a narrow apical border which begins at the above-named streak and ends at apex of the fourth longitudinal vein. The abdomen is entirely shining me- tallic to the base ; the legs are entirely black, even on the tarsi. 181. Scholastes cinctus Guer. 1832. Numerous specimens from Los Banos and Mount Banahao. Already known from the Islands and very common in the Orient ; recorded also from New South Wales. Gorgopis cristiventris of the first century, No. 59, is now placed in the genus Tropidogastrella Hendel ; there are specimens also from Mount Maquiling. 182. Zygaenula paradoxa Dol. 1858. Mount Banahao, Luzon, and Butuan, Mindanao. A very curious fly, new for the Philippines, and previously known only from Amboina. The body is almost quadrate; the present specimens measure 5 to 5.5 millimeters in length and 3.6 to 4 millimeters in breadth. The species seems to be variable in coloration; in some specimens the entire occiput is black, while in others it is wholly reddish; the legs have the femora partly or entirely reddish yellow, or the four posterior femora are black on the basal half; the ovipositor is sometimes black, with bluish base. 183. Naupoda unifasciata sp. nov. A small species, closely allied to N. contracta Hendel, from Formosa, and different from the typical endemic species N. platessa, besides the very different coloration, in having a pair of frontoorbital bristles, which are wanting in that species. Male. — Length of body, 3 millimeters; of wing, 3.2. Head 40 PHILIPPINE DIPTERA, II black; frons and face dark reddish brown, shining; frons about as broad as long, with parallel sides, with the eye borders very narrowly white and continued on the cheeks ; face concave, with rather prominent mouth border; antennae entirely reddish yel- low, the third "joint obtuse at end and shorter than the face, with finely pubescent arista; prselabrum short, not prominent, yellowish; palpi yellowish; proboscis brown; pubescence of the frons yellowish; bristles black; the single pair of frontoorbitals directed backward and weaker than the two pairs of equally strong but short verticals, the inner pair converging. Thorax stout, as long as broad, shining black, finely and scarcely punctulate, with very short dark pubescence; bristles black and very short; pleuraB convex, smooth, glistening, black. Scutellum of great size, colored and punctulate like the dorsum, with a pair of very short, stout bristles near the end. Squamse small, pellucid, brownish; halteres brownish, the knob blackish above. Abdomen short, almost triangular, smooth, shining bluish black, glistening, with short and soft whitish pubescence; the two first segments raised, forming a triangular keel, very acute toward the middle. CoxaB and femora dark brownish, with short dark pubescence ; tibias paler ; front tarsi blackish, the posterior four entirely whitish. Wings grayish hyaline, with a faint yellowish tinge; the base of the second costal cell in middle, the base of the first basal and the whole upper part of the second basal pale brown ; in the middle of wing a single, narrow, curved brown band, which begins at end of the first basal cell in front of the an- terior cross vein, fills out the end of the discoidal cell, sur- rounds the hind cross vein, and ends at apex of the fifth vein; the upper half of this band darker than the lower half. A short pale brownish streak extends from the end of the first longitudinal vein to the middle of the submarginal cell. Ante- rior cross vein on the last third of the discoidal cell and near the hind cross vein, which is oblique and a little longer than the distance between the two transverse veins ; last sections of third and fourth veins straight and almost parallel, the first posterior cell being only a little broadened at end ; the section of the sixth vein after the anal cell longer than the apical cross vein of the anal cell. The entire wing surface strongly pubescent, the third longitudinal vein covered with long scattered hairs on its whole length. Discoidal cell a little longer than the second basal cell. LUZON, Laguna, Mount Maquiling (Baker). PHILIPPINE DIPTERA, II 41 Key to the Philippine species of the genus Pterogenia Bigot. It seems that this genus, although not yet recorded from these Islands, is represented by a great number of peculiar endemic species; at least I have found in Professor Baker's collection no less than six species, none of which can be referred to any of the twenty-seven oriental species included in Hendel's monograph. a1. Scutellum entirely black. 61. Frons as broad as an eye; mesonotum with yellow stripe on each side of dorsum, from suture to scutellum; a very robust species of pro- portionally large size, with only banded, not spotted, wings. valida sp. nov. 62. Frons narrower than an eye; mesonotum entirely black or only with a notopleural yellow stripe; smaller species, with banded and spotted wings. c1. Occiput entirely black, even below, or only with a narrow yellow stripe on upper part; mesonotum without a yellow notopleural stripe tristis sp. nov. c2. Occiput with a broad yellow postocular border; mesonotum with a yellow notopleural stripe panra sp. nov. a2. Scutellum margined or striped with yellow, at least on sides. dl. Frons broader than an eye; head broader than high; second abdominal segment with a longitudinal keel; legs entirely reddish; wings yellowish, not banded, and with numerous dark spots. laticeps sp. nov. ef. Frons narrower than an eye; head higher than broad; second abdo- minal segment without keel; legs mainly black; wings distinctly banded. el. Scutellum black, with a narrow yellow hind border; no yellow stripes on dorsum of mesonotum or on sternopleura ; wings dis- tinctly yellow at base luteipennis sp. nov. e2. Scutellum yellow, with a black central spot; dorsum and sterno- pleura with yellow stripes; wings without yellow at base. centralis sp. nov. 184. Pterogenia valida sp. nov. A stout, short, and broad species, closely allied to the Bornean P. dayak Bigot, but easily distinguished by the black legs, the shortly plumose arista, and the compressed ovipositor. Female. — Length of body, 8 millimeters; of wing, 8; breadth of body, 4.2. Head greatly developed, rather flat, about as high as broad, black with yellow markings. Occiput rather concave above, glistening black on middle, with a dull deep black border and besides with a complete yellow border, which is narrow distad of the vertical keel and near the upper eye border, but broader on the dilated and produced inferior part. Frons as broad as an eye, somewhat shining black on sides at vertex, opaque brown on the middle band, with a broad yellow border 42 PHILIPPINE DIPTERA, II on each side, which is continued over the broad cheeks, ending with a point at some distance above the mouth border; face concave, black, shining on the antennal grooves, which are separated by a flat yellow keel ; epistoma broad, blackish brown, prominent; jowls very broad, about one half as broad as the vertical diameter of eye, rugulose, black except the terminal points of the yellow stripes of cheeks and of occiput. Lunula black, dark yellowish on the sides. Antennae short, much shorter than the face, entirely black; third joint gradually at- tenuated, but obtuse at end, with a basal, shortly plumose blackish arista, the total breadth of feathers being equal to the breadth of the third joint. Prselabrum very narrow, retracted, blackish; proboscis and palpi black, the latter very broad and provided with short dark hairs; a single pair of vertical ce- phalic bristles, the inner one black; the short and dense frontal pubescence black on the middle stripe and whitish on the yellow borders. Mesonotum and scutellum shining black, but the first on dor- sum appears to be less shining on account of the coarse punctula- tion; clothed with short black pubescence and provided with black bristles; scutellum bordered with about fourteen short bristles. A broad, faintly curved yellow stripe on each side of dorsum, extending from the suture to the scutellum; a broader, but shorter, yellow stripe extending from the small black hum- eral calli to the root of the wings. Pleurae and breast entirely black, glistening, with rather long and dense black hairs. Meso- phragma shining black. Squamae broad and long, pellucid gray- ish, with pale yellowish and whitish pilose borders; halteres pale yellowish, proportionally small. Abdomen very short and broad, strongly convex in the middle, finely punctulate, with short dark pubescence and rather long black hairs on the sides; it is shining black, with bluish reflec- tions on the sides. Second and third tergites with a narrow, but complete, yellow hind border; the third segment with the peculiar, triangular area of P. dayak, situated at middle of hind border and clothed by a soft, spongy membrane ; fourth segment very narrow, entirely bluish ; ovipositor short and black, its basal segment compressed, not depressed as usual. Venter black. Legs rather stout, entirely black even on the coxae, and with black pubescence; femora only a little dark brownish near the base above; the two basal joints of all the tarsi whitish yellow and whitish pubescent, the last three joints deep black. Wings grayish hyaline, distinctly yellowish along the costal cell. An irregular fuscous band extending over the base of the PHILIPPINE DIPTERA, II 43 first basal cell and over the ends of the second basal and anal cells; a second rather broad brown band begins below the brown stigma and, passing over the anterior cross vein, ends a little after the fifth vein; along the costal border a series of three dark spots in the form of three abbreviated bands, which surpass only a little the third vein and are placed at the ends of the first, second, and third veins; the intermediate one of these spots sometimes continued to reach the more or less developed fuscous border of the hind cross vein. Anterior cross vein long, placed a little before the middle of the discoidal cell; third and fourth veins straight and perfectly parallel; anal cell a little shorter than second basal cell, its terminal vein being slightly curved outward. LUZON, Laguna, Los Bafios (Baker). MINDANAO, Butuan (Baker). 185. Pterogenia tristis sp. nov. Very near P. luctuosa Hendel from Formosa, but at once dis- tinguished by the much richer wing pattern. Male and female. — Length of body, 5 millimeters; of wing, 5. Head as in P. valida, but the frons distinctly narrower, and the vertical diameter longer than the horizontal one, the jowls nar- rower. Frons yellow, with two black crossbands, one near the vertex including the ocelli and the other a little distad of the middle ; these two bands dilated on the sides in the form of spots and united with a dark middle line ; cheeks yellow and very narrow. Face yellow, with a black middle spot, another smaller spot on each side below the black spot, and a narrow black line at mouth border; jowls only one third of eye, black, with a yellow spot near the eye ; lower orbital border not dilated, black, with more or less extensive yellow spots. Antennae much shorter than the face, black at base; third joint yellowish, with infus- cated apical half; arista more shortly plumose than in P. nivei- tarsis, but longer than in P. luctuosa, the breadth of feathers being almost equal to the breadth of the third joint. Prselabrum narrow and blackish; palpi yellowish, black-haired; proboscis brown. Mesonotum and scutellum entirely black, opaque, punctulate, with short black pubescence; dorsum in front with three less distinct longitudinal gray stripes. Mesopleura with a narrow, less distinct, longitudinal yellowish stripe. All the bristles black; scutellum with a single, long, apical pair, and near this four or five other pairs of much shorter bristles. Squamae whitish, with pale yellowish border ; halteres yellowish. 44 PHILIPPINE DIPTERA, II Abdomen shining black, smooth; second, third, and fourth segments in the male with a narrow yellow hind border, a little dilated toward the middle; male genitalia black. In the female the abdomen entirely black, at end only with a broad yellowish membranous patch at base of the ovipositor; the last with the basal segment depressed, black. Legs black, even on the coxae; the four posterior tibia? with a middle yellowish ring and yellowish bases, all the tarsi whitish, with blackish ends. Wings with numerous dark spots on the basal half, a broad, middle brown band from stigma to the hind border interrupted on lower half by hyaline spots, and a broad, complete brown band from apex of the marginal cell to the middle of the hind border of the second posterior cell ; in the hyaline space between these two bands a series of spots forming a narrow, irregular band united with the narrow fuscous border of the hind cross vein; in the hyaline apical part of wing there are also three or four dark spots, forming one or two irregular and shortened bands. First posterior cell distinctly dilated outward; anterior cross vein on the middle of the discoidal cell; anal cell much shorter than the second basal cell, with the terminal vein straight. LUZON, Laguna, Mount Maquiling (Baker) . 186. Pterogenia parva sp. nov. Closely allied to P. tristis, but distinguished by the yellow noto- pleural stripe, the shining dorsum of mesonotum, and the longer plumose arista. Female. — Length of body, 4 millimeters ; of wing, 4. Head as in P. tristis, but the frons narrower and more elongate, being about twice as long as broad, and black with, a narrow yellow vertical band; a broader yellow supra-antennal band; and two yellow spots before the middle. Yellow lower borders of eyes broader ; face with only two black spots at end of the antennal grooves; third antennal joint entirely yellow; feathers of the arista twice as broad as the third antennal joint; prselabrum yellow; palpi black. Mesonotum and scutellum shining black, punctulate, with short black pubescence; humeral calli yellow, like a notopleural stripe extending to the root of wings ; pleura altogether shining black and black-haired. Halteres yellowish. Abdomen entirely shining black, even on the base of the ovi- positor, smooth; ovipositor black, depressed. Legs black, but the hind tibiae almost entirely yellowish, without differently colored ring; tarsi whitish, with blackish ends. Wings as in P. tristis, but the dark spots of the basal less PHILIPPINE DIPTERA, II 45 numerous and with a distinct basal band before the anterior cross vein; fuscous border of the hind cross vein broader; the spots in the hyaline apical part less developed. Anterior cross vein a little beyond middle of the discoidal cell; anal cell much shorter than the second basal cell ; cross vein at end of the second basal cell shorter than the second section of the fifth vein, which makes its lower border. MINDANAO, Butuan (Baker). 187. Pterogenia laticeps sp. nov. A robust species, which in the form of head and in general aspect is very like P. dayak and P. valida, but differs very much in coloration of body, legs, and wings; in the shape of the second abdominal tergite it shows an affinity with the Bornean P. albovittata Rondani. Female. — Length of body, 7 millimeters ; of wing, 6.5 ; breadth of body, 3. Head broader than high, yellow with black markings. Occiput above with a black transverse band between vertex and neck; frons broader than eye, as long as broad, with two black parallel crossbands, the broader one situated near the vertex and including the ocelli, the other narrower and placed distad of the middle, united to the preceding band by a black middle stripe; the short frontal pubescence black, like the single pair of vertical bristles; lunula shining black, frons opaque. Face broad, entirely dull yellow, a broad black spot, shining in the middle, just below the lunula and forming with it a single rounded spot at the root of antennae; a narrow black semicir- cular line, interrupted in the middle and dilated in a spot on each end, which divides the broad but flat epistome from the jowls. Cheeks yellow and much narrower than in P. dayak; jowls as broad as in P. dayak, as long as one half of the vertical diameter of eye, lighter yellow than the face, and clothed with numerous, short and dense black hairs; on the prominent and dilated lower occipital border are two small dark spots near the eye, above the inferior angle. Antennae yellow and much shorter than the face, the two basal joints with a black spot on interior side; arista shortly plumose, the feathers being about as broad as the third joint. Praelabrum retreating, narrow, yellow, white- dusted; proboscis yellowish brown; palpi broad, yellow, with short and scanty blackish hairs. Mesonotum and scutellum dull black, punctulate, with short black pubescence; on each side of the dorsum, from suture to scutellum, a rather narrow shining yellow stripe, curved out- ward at end and accompanied inward by a short yellow streak, 46 PHILIPPINE DIPTERA, II in continuation with that of the scutellum; sutural calli yellow, 'conspicuously cutting into the deep black sides of dorsum; hum- eral calli yellow; a yellow stripe just below the notopleural line from humeral calli to the root of the wings. Pleurae deep black, smooth, shining only on the posterior half, with dense and long black hairs and with a narrow yellow horizontal stripe on the lower half of mesopleura parallel with the noto- pleural stripe. . Scutellum black, shining along the hind border, with four longitudinal yellow streaks; two longer, curved out- ward at end and situated on middle of the sides; two much shorter and paler, placed at apex. Thoracic and scutellar bristles black, scutellum with the apical pair alone, placed just in the middle of each apical yellow stripe. Squamae whitish, with yellow border; halteres yellowish. First abdominal segment black, concealed below the very large scutellum ; second segment black, with a complete reddish yellow stripe along the hind border and raised in the middle to form a very sharp keel, which is black before and reddish yellow behind ; third segment reddish yellow, with narrowly black sides below and with a deep oval fovea in the middle, homologous with those of P. dayak and valida; fourth segment not visible; ovipositor short, depressed, black; venter yellowish on middle, black on sides. Abdominal pubescence black on the black parts and golden on the reddish yellow parts. Legs stout, entirely reddish yellow; the coxae, chiefly those of the front pair, broadly black behind; front femora with a brown longitudinal streak outside at base ; all the tibiae infuscated at end ; the first joint of all the tarsi whitish, the others brown ; the pubescence black. Wings with a yellow tinge, which is more intense on the basal half and along the fore border; they have a few dark spots, arranged to form crossbands — a basal, less-defined one, a middle one more developed and double, and three others on apical part after the hind cross vein, which is narrowly bordered with fuscous along the inner side only. Veins yellow ; third and fourth a little wavy, the first posterior cell dilated at end; an- terior cross vein on middle of discoidal cell; second basal cell much longer than the anal one, its two apical cross veins being of about the same length ; anal cross vein straight. LUZON, Laguna, Los Bafios (Baker). 188. Pterogenia luteipennis sp. nov. A distinct species near P. pectoralis Hendel, from New Guinea, but at once distinguished by the yellow base of the wings. PHILIPPINE DIPTERA, II 47 Male and female. — Length of body, 5.5 to 6 millimeters; of wing, 6 to 6.5; breadth of body, 2.8 to 3. Head much higher than broad. Occiput black, with a complete yellow border which is narrow above and broader on the produced lower part, and there with a black spot, situated behind the inferior corner of eye. Frons narrow, length more than twice the breadth, opaque, dark yellow, with a basal and a middle crossband, united by a median longitudinal stripe. Lunula black, with a brown spot on each side between antennae and eye. Face short, concave, continued below by the very broad epistoma, yellow, with a black transverse band at end of antennae ; cheeks narrow, yellow ; jowls very broad, as broad as one half of eye, rugulose, yellow, with a broad black band, which is in continuation of that of face. Prselabrum concealed; palpi black; proboscis brown. Antennas short; first joint black, second globular and red, third pale yellow; arista long plumose, the feathers twice as broad as the third joint. Mesonotum and scutellum black, opaque, punctulate, black pubescent; three less distinct and irregular cinereous longitu- dinal stripes on dorsum, humeral calli yellow like the notopleural stripe; mesopleura toward the middle with a narrow yellowish stripe, which is cinereous-dusted above. Yellow border of scu- tellum complete, but narrow. Squamse and halteres yellowish. Abdomen dull black, the second, third, and fourth segments each with a narrow yellow hind border, which is a little broadened in the middle; second segment without keel; male genitalia yellow; ovipositor short, compressed, brownish yellow; venter yellowish, black on the sides. Legs and coxse black, the four posterior tibiae with the basal half yellowish, and all the tarsi with the first joint whitish. Wings rather long, with a strong yellow tinge along the fore border and on the basal half ; on the basal half some dark spots and two broader dark bands, one intermediate and complete below the stigma, and the other surrounding the posterior cross vein; a dark stripe to the fourth vein in the hyaline space be- tween the two bands and some uncertain spots in the apical hyaline part. Veins yellow, the third and fourth straight and parallel to the end ; anterior cross vein a little before the middle of the discoidal cell; anal cell not much shorter than the second basal cell, with the terminal cross vein straight. LUZON, Laguna, Mount Maquiling and Mount Banahao (Baker). 48 PHILIPPINE DIPTERA, II 189. Pterogenia centralis sp. nov. Allied to P. luteipennis, but distinguished by the very different coloration of mesonotum and scutellum. Female. — Length of body, 5.5 millimeters ; of wing, 5.5. Head as in P. luteipennis, the shining occipital yellow border without black spot in the dilated part; frons yellow, with an elongate, double reddish brown spot in the basal part ; face with a rounded black spot at end of the antennal grooves and with a narrow black line, dividing the epistoma from the jowls without black crossband. Antennae as in P. luteipennis, but the second joint black and the arista more shortly plumose, the breadth of feathers being only equal to the breadth of the third joint. Mesonotum and scutellum black, opaque, with dense, shining yellowish pubescence; on dorsum a yellow stripe from the yellow humeri to the suture, curved inward at end and another from the suture to the scutellum, a yellow notopleural stripe, and below this two broad, parallel yellow stripes — one on mesopleura, the other on upper part of sternopleura ; hairs of pleurae whitish and yellowish. Scutellum yellow, with a basocentral, rounded black spot. Squamae whitish; halteres yellowish. All the bristles black; on scutellum a pair of long apical bristles and some other pairs of shorter ones. Abdomen as in P. luteipennis, but the yellow hind borders of second and third segments broader, and the third segment with a middle longitudinal yellowish stripe; pubescence black, but yellowish on the yellow parts; ovipositor black, depressed; venter black, with black hairs. Coxae black; femora reddish brown with blackish stripes below and behind; tibiae yellowish with black ends ; tarsi whitish, with the last three joints black. Wings whitish hyaline with only the extreme base less distinctly yellowish; three complete fuscous crossbands, the first near base, the second below the stigma and crossing the discoidal cell, the third extending from apex of the marginal cell to the middle of the second posterior cell ; the hind cross vein margined with fuscous only below and not included in a band, but above it from costa to a little before the fourth vein there is a dimidiate crossband in the hyaline space between the second and third crossbands; in the apical hyaline space some fuscous spots, forming one or two irregular crossbands. Veins yellowish brown, directed as in P. luteipennis, but the second longitudinal vein distinctly a little wavy, not straight ; anal cross vein distinctly longer than that at end of the second basal cell. MINDANAO, Butuan (Baker). PHILIPPINE DIPTERA, II 49 Key to the Philippine species of the genus Euprosopia Macquart (including Notopsila Osten Sacken). The present genus also seems to be productive of endemic species in the Philippines. No one of the five species found by Professor Baker can be identified with any of the thirty-three species already known from the Oriental and Australian Re- gions: the group of the species with elongated antennae (lepi- dophora, longicornis) seems to be peculiar to the Islands. The two species, sexpunctata and curta, described by Osten Sacken under the generic name of Notopsila, also belong here, but are wanting in the present collection ; Euprosopia curta was recently recorded from Formosa by Hendel. a1. Scutellum emarginate, that is, distinctly hollowed at apex; arista bare; wings spotted. fe1. Face with six deep black spots sexpunctata O. S. 62. Face without black spots curta O. S. a2. Scutellum not emarginate, convex at apex; arista shortly plumose; wings usually banded. c1. Antennae much shorter than the face, as usual. d\ Mesonotum adorned with three broad longitudinal bands of yellowish tomentum, the middle of which is continued on scutel- lum and abdomen; front tarsi with yellow bases; wings distinctly yellowish, with fuscous spots trivittata sp. nov. cP. Mesonotum and abdomen altogether black, without such stripes; front tarsi black; wings not yellowish and distinctly banded. e1. Much larger; abdomen without white scales; front tarsi much dilated; wings with the second and third bands united with the broad fuscous border of the hind cross vein. gigas sp. nov. e2. Much smaller; abdomen with scattered white scales; front tarsi not dilated; wings with only a single distinct band between the numerous dark spots....: millepunctata sp. nov. c2. Antennae as long as the face, or even a little longer; abdomen with scattered white scales; wings conspicuously banded. f1. Antennae red; femora and tibiae entirely and intensively black. lepidophora sp. nov. f. Antennae black; femora and tibiae in part reddish brown or yellowish longicornis sp. nov. 190. Euprosopia trivittata sp. nov. A very distinct species, suggesting Plagiostenopterina trivit- tata Walker by its coloration and seeming to be alljed to E. tigrina Osten Sacken, from New Guinea, which, however, has a very different wing pattern and has no inner frontoorbital bristles. Male and female. — Length of body, 5 to 6 millimeters; of wings, 5 to 6. Head oval, much higher than broad, entirely 141802 4 50 PHILIPPINE DIPTERA, II yellow ; occiput with dense gray dust, which becomes paler on the dilated lower part; frons once and a half as long as broad, broader than an eye, distinctly broader in the middle than at the ends, the middle band clothed with short yellow hairs and with a narrow white stripe on the sides, with a middle longitudinal dark line ; lunula yellow ; two pairs of black vertical bristles ; face whitish-dusted, above with a short dark longitudinal band be- tween the antennae, and below with two black spots at end of the antennal grooves ; cheeks narrow, much narrower than the third antennal joint; jowls about one fifth of eye, yellow, with a less distinct brown spot. Antennae entirely yellow, a little longer than one half of face ; third joint attenuated, but obtuse at end, with a short, basal, plumose arista, the breadth of feathers being equal to the breadth of the third joint. Prselabrum convex, circular, shining yellow, with a black spot on each side; palpi dilated, deep black, the apical border shining whitish and the thin base broadly yellow; proboscis yellowish. Mesonotum opaque, black, but almost entirely occupied on the dorsum by the three equally broad longitudinal stripes of yellowish tomentum; the short pubescence yellow on the yellow stripes and black on the black ones; the hind border of dorsum with a row of long yellow hairs before the scutellum ; bristles black; pleurae entirely clothed with yellowish tomentum, sepa- rated from the external stripes of the dorsum by the black notopleural band ; hairs yellow and very long on the hind border of mesopleura and of pteropleura. Scutellum black, convex at end, with the broad, middle yellow band exactly in continuation of that of dorsum; two pairs of apical black bristles, and rather long yellow hairs at hind border. Squamae and halteres pale yellowish. Abdomen entirely clothed with yellowish tomentum like the mesonotum, but with a black longitudinal stripe on each side not reaching the hind border, and thus forming the three lon- gitudinal yellow stripes, the middle of which is exactly in contin- uation of that of scutellum and mesonotum; venter yellow and brown, rather shining. Male genitalia black, rounded, retracted, with some short black and red appendages below and with a very long, spiral, shining reddish penis; ovipositor short, black, flattened. Legs yellow, with yellow pubescence; front coxae mainly black ; femora and tibiae broadly black at end, sometimes the anterior femora and even the middle ones entirely black with yellow ends ; basal joint of all the tarsi whitish. Wings with a distinct yellowish tinge at base and fore border ; covered with numerous dark spots, which are in part confluent, PHILIPPINE DIPTERA, II 51 but without forming distinct crossbands; hind cross vein with a broad fuscous border, and in continuation with it a subobsolete band, interrupted by hyaline spots, which ends at apex of the first longitudinal vein. Third and fourth longitudinal veins entirely straight and parallel in their last sections; anterior cross vein oblique and placed near the middle of the very long discoidal cell; second basal cell longer than the anal, which is terminated by a straight cross vein. LUZON, Tayabas, Mount Banahao (Baker) . 191. Euprosopia gigas sp. nov. In wing pattern very similar to E. impingens Walker, from New Guinea, but distinguished by its different coloration and by the presence of two pairs of vertical bristles. Female. — Length of body, 12 millimeters ; of wing, 12. Head higher than broad, with the frons and the face much produced over the eyes, but perhaps only because of an accidental com- pression of the type specimen. Occiput hollowed, yellowish, with two black stripes; frons narrower than an eye, about twice as long as broad, hollowed in the basal half and there yellowish red, prominent in the apical part and there black, with narrow yellowish sides; bristles black, the inner vertical pair only one half as long as the external pair; lunula dark brown; face pale yellow, with a black stripe on each side along the antennal grooves, which is continued below to the mouth borders, but becomes brownish in this part; cheeks black and brown, a little narrower than the third antennal joint; jowls brown, one fifth of eye in breadth. Antennae black, the basal joint a little reddish outward, not longer than one half of face, with a long arista, which is shortly plumose at base, the feathers being as broad as the third joint. Praelabrum narrow, subquadrate, shining yellowish ; palpi less dilated, entirely black, with long black hairs ; proboscis dirty yellowish. Mesonotum dull black, densely punctulate, with short and thick black hairs, only in front of the scutellum with yellow hairs ; bristles black, two or three anterior supra-alars; pleurae black, gray-dusted and with numerous rounded black points, with long yellow hairs and some shorter black hairs on anterior part of mesopleura, sternopleura, and pteropleura. Scutellum flattened above, convex behind, reddish brown, darker at base, entirely clothed with shining yellow hairs, which are longer near the borders, and with three pairs of strong black apical bristles, the smaller, external pair being placed most distant from the border. Mesophragma black, smooth, rather shining; squamae 52 PHILIPPINE DIPTERA, II pellucid brownish with a whitish border; halteres yellowish. Abdomen black, finely punctulate, rather shining, with the last two segments brownish red; pubescence dark, the hind borders of the segments with longer whitish hairs; venter dull black, with whitish hairs on the sides; ovipositor black, flattened. Legs stout, brownish black, with black pubescence; front tarsi much dilated, entirely deep black; the basal joint of the four posterior tarsi whitish, with black ends. Wings destitute of yellowish tinge at base or fore border ; the dark pattern is very like that figured by Hendel,15 but the first band is much broader ; the second and third bands united with each other and with the broad border of the hind cross vein from the fourth longitudinal vein; the hyaline spaces between first and second hands and between second and third bands have in the middle two or three elongate brown spots, which form two narrow, interrupted stripes; the second posterior cell shows four or five dark spots along the hind border. LUZON, Laguna, Mount Maquiling (Baker). 192. Euprosopia millepunctata sp. nov. A small, dull blackish species, with a white-scaly abdomen and with a single dark crossband on the thickly punctuated wings. Male. — Length of body, 4 millimeters; of wing, 4. Head blackish, a little higher than broad; frons with narrow dark yellowish lateral borders and with short yellowish hairs; two pairs of black vertical bristles; face dark yellowish on the middle, brownish on the sides, with a deep black spot at end of each antennal groove; cheeks brown, linear; jowls deeply rugose, reddish brown, one sixth of eye. Antennae blackish brown, dark reddish at base, a little produced over the middle of face; arista shortly plumose at base, the breadth of feathers being less than the third joint. Praelabrum convex, circular, shining black ; palpi black, with narrowly yellow base ; proboscis dark brown. Mesonotum entirely dull black, with short and scattered yellow hairs, and in front with the beginning of two longitudinal gray lines, which do not reach the suture; pleurae gray, with indistinct black points and with rather long yellow hairs at hind border of mesopleura. Scutellum like the dorsum of mesonotum, convex at end, with two pairs of apical black bristles. Squamae brownish pellucid; halteres yellowish. Ab- domen entirely dull blackish, the last two segments densely gray-dusted and with scattered whitish scales; genitalia re- tracted, black like the venter. Legs stout, black, the femora 15 Die Art. d. Platyst., Plate II, fig. 38. PHILIPPINE DIPTERA, II 53 brown toward the base, four posterior tibiae broadly yellowish in the middle; front tarsi entirely black, not dilated; basal joints of the other four tarsi whitish, with black ends. Wings whitish hyaline, no yellow at base, with very numerous blackish dots and streaks, wrhich are partly confluent, so that the wing may be said to be blackish with whitish hyaline dots; a distinct, rather broad crossband, beginning at fore border beyond the end of first vein, inclosing there two or three short hyaline streaks, crossing the middle of the first posterior cell and sur- rounding the hind cross vein, and ending at hind border at apex of the fifth longitudinal vein. Last sections of third and fourth veins straight and parallel. LUZON, Tayabas, Malinao (Baker). 193. Euprosopia lepidophora sp. nov. Similar to E. fusifacies Walker, from New Guinea and Aru Islands, but distinguished from it and from the other species by the elongate antennae, which are produced to the mouth border. Male. — Length of body, 7 millimeters; of wing, 7. Head in front with a rounded outline, about as broad as high, much broader and higher than the mesonotum; occiput black, with dense gray dust, whitish on the little-produced lower border; frons a little longer than broad, a little but distinctly narrower at vertex than in front, its broad middle stripe dark reddish, paler on the sides, with a narrow silvery border near the eyes and with scattered yellow hairs; two pairs of black vertical bristles, the inner pair only a little shorter than the external one; face flattened, much broadened below, in the form of an isosceles triangle, white, opaque, the upper angle and the base narrowly red. Antennal grooves long, diverging, yellowish white-dusted, spotless; mouth border narrow, less prominent, with a narrow but complete blackish crossband; cheeks very narrow, linear, blackish; jowls one fifth of eye, blackish brown in front, whitish behind, and there with a very strong black genal bristle. An- tennae long, reaching the epistome, entirely red; third joint linear, very long; eight to ten times as long as the first two joints together; arista long, reddish, shortly plumose on its whole length, the feathers about as broad as the third joint. Prselabrum circular, convex, shining black ; palpi broad, entirely black, with long, scattered black hairs ; proboscis black. Mesonotum short, subquadrate, black, dark gray-dusted and yellow-pubescent above ; bristles long, strong, and black ; pleurae with dense pale grayish dust and long whitish hairs; on meso- pleura a broad perpendicular band of whitish dust, which is 54 PHILIPPINE DIPTERA, II continued above on the dorsum along the suture in the shape of a whitish triangle. Scutellum black, with yellow pubescence and with a spot of whitish dust on each side at apex, which is convex, not emarginate ; two pairs of strong black apical bristles. Squamae whitish; halteres yellowish. Abdomen black, gray- dusted; the last three segments provided writh scattered, broad whitish scales. Venter and genitalia black. Legs deep black, with black pubescence, front coxse gray-dusted and white-pubes- cent anteriorly; basal joint of all the tarsi whitish. Wings not yellow at base, the fuscous pattern about as in Renders Plate II, fig. 39; a dimidiate band before the middle band; the third band prolonged to the hind border, the apex of wing appearing entirely fuscous, with two hyaline spots. LUZON, Tayabas, Malinao (Baker). 194. Euprosopia longicornis sp. nov. Closely allied to E. lepidophora, but smaller and differently colored. Male and female. — Length of body, 5 to 5.5 millimeters; of wing, 5 to 5.5. Head exactly as in E. lepidophora, but the antennae entirely black, a little dark brownish near the base ; the third antennal joint longer, being a little longer than the face; the broad facial triangle more yellowish than white and destitute of red stripes; epistome without black band; the genal bristle much weaker. Mesonotum and abdomen entirely as in E. lepidophora, ovi- positor short, broad, flattened, black. Legs with the four pos- terior tibiae broadly yellowish on the basal half; hind femora with long and dense whitish hairs below. Wings as in E. lepidophora, but the pattern less dark; the hyaline space between the second and third bands has above near the fore border a fuscous triangular spot, prolonged to the second longitudinal vein, which is entirely wanting in lepido- phora and in fusifacies; the praeapical band is likewise complete, but there is no dark spot in the hyaline hind border of the second posterior cell. LUZON, Tayabas, Mount Banahao (Baker). 195. Taeniaptera nigripes van der Wulp. 1881. Los Banos, Mount Maquiling, Luzon. Philippine specimens like the present ones have been referred by Osten Sacken.to this species described from Sumatra, but I think it probable that they belong to an undescribed species; the rings on femora are white, not reddish as in typical specimens. PHILIPPINE DIPTERA, II 55 196. Eurybata hexapla O. S. 1882. Luzon, Laguna, Los Banos and Mount Maquiling. A very strange and beautiful endemic insect. Telostylus niger Bezzi, 1913. — This species, described in the first century,16 seems to be common in the Islands, being also represented from Mount Maquiling ; Professor Baker has reared it from fallen fruits of Terminalia nitens Presl. Male. — The undescribed male is like the female, but is notice- ably different in the front legs like the males of other species of the genus Telostylus. The front femora are provided below on the apical half with two rows of short black spines, those of the internal rows being distinctly longer. The basal joint of each front tarsus is considerably swollen and spindle-shaped. The femora of all the legs, and chiefly those of the intermediate pair, are distinctly thickened. The genitalia are prolonged as a cylindric protuberance, which is bent below, and in front of this there is another yellow prominence. 197. Nothybus triguttatus sp. nov. Very like the typical species, N. longithorax Rondani, from Borneo, but differing in the wing pattern. Male. — Length of body, 7 millimeters ; of wing, 7. Head yel- low. Occiput very much hollowed above, the eyes being prom- inent on the sides; frons with a deep and broad excavation at vertex behind the ocelli, and there with a striking velvety black subquadrate spot ; the remainder of frons gently convex, strongly glistening, with a broad velvety black spot on each side, in contact with the eyes and of triangular shape, prolonged behind along the orbits to their middle and in front entirely to cover the narrow cheeks. Face elongate, narrower than the frons, yellow above, whitish below and there with a prominent, oval, strongly glistening blackish brown tubercle, the surrounding area shining white; prselabrum prominent, triangular, whitish; palpi whitish, narrow, almost bare ; proboscis yellowish. Anten- na short, inserted above the middle of eyes, the two basal joints yellow, with some black hairs and a longer bristle above at end of the second; third joint rather acute at end, not longer than the first two joints together, deep black with narrowly yellow base; arista blackish, incrassate at base, very long-plumose to the end. Cephalic bristles strong and black; two pairs of verticals, bent backward, the inner pair longer and placed more forward; two pairs of frontoorbitals, likewise bent backward, 18 Phil Journ. Scl, Sec. D (1913), 8, 329, No. 85. 56 PHILIPPINE DIPTERA, II of equal size, one at level of the ocelli, the other before the middle of the frons; no distinct ocellar or postvertical bristles. In profile view the head is almost entirely occupied by the eyes, which are rounded and of great size ; frons only a little prominent above the antennae; ocelli placed just at middle distance be- tween the inner vertical and the anterior frontoorbital bristles. Mesonotum entirely yellow, a little shining and a little darker on dorsum, more orange and opaque on sides and on pleune; conical and exceedingly prolonged in front; on dorsum clothed by short black hairs disposed in almost regular longitudinal rows; quite bare on pleurae. Bristles black; no humeral; a single notopleural, the posterior one, placed apparently on the pleura, on account of the peculiar form of mesonotum, and just below the very oblique and broadly interrupted suture; one anterior and one posterior supra-alar; one pair of dorsocentrals very near the scutellum; one mesopleural. Scutellum elongate, triangular, with one basal and one apical pair of long bristles; postscutellum of a very peculiar form, in shape of an obtuse cone, more prominent than the scutellum itself, entirely yellow, opaque; mesophragma short, yellow, whitish-dusted. Squamae very small, yellowish, with brown border; halteres yellowish, with brown knob. Abdomen narrower than the thorax, elongate, linear, of equal breadth throughout; about as long as the mesonotum, entirely yellow, opaque, with short black hairs ; the last segment whitish- dusted ; the very small genitalia yellow, whitish-dusted, retracted, destitute of appendages. Venter pale yellow, with black hairs on the sides. Legs thin, not elongate ; coxae and femora yellow ; tibiae and tarsi black, but on these last the elongate praetarsi of the front pair whitish; front coxae with some short black hairs at end ; middle coxae with a long bristle on the middle of anterior side ; apical spur of middle tibiae very long, black. Wings spatulate, constricted to form a long and narrow basal stalk; uniformly suffused with a pale yellowish tinge and with the apical third inf uscated ; the internal limit of this inf uscation marked by a narrow, oblique brown band, which begins at fore border a little before the end of the marginal cell and, passing over the hind cross vein, ends at the fifth longitudinal vein. In this fuscous apical part are three distinct, oval, subhyaline spots, one in the submarginal, one in the first posterior, and one in the second posterior cell. Veins yellowish; the first longitudinal very short, ending at end of the stalked part of the wing; sec- ond very long, ending before the apex symmetrically with the fourth ; while the third ends at the apex itself ; these three veins PHILIPPINE DIPTERA, II 57 are perfectly straight, placed at equal distances, and slightly diverging toward the end. Discoidal cell very long, the anterior cross vein placed before its middle; second basal cell a little shorter than the anal cell; the basal section of the fourth in- terrupted before its end; anal cell rather acute on the lower angle, its terminal vein being oblique; last section of the fifth longitudinal vein much shorter than the perfectly straight and perpendicular hind cross vein. MINDANAO, Butuan (Baker). 198. Stylogaster bakeri sp. nov. This new species is a very important addition to the oriental fauna, being the first species of this genus known from the Orient. It is named in honor of Professor Baker. It seems to be allied to the recently described S. frontalis Krober, 1914, from Belgian Congo; but it is distinct from that and from any other at present known by the peculiar brush of hairs at the base of the hind femora in the male. Male and female. — Length of body (without antenna? and without ovipositor), 6.5 to 7.5 millimeters; of wings, 6 to 6.5. Head broader than the thorax, of almost circular outline in front view; occiput flat, a little hollowed above behind the vertex, black, densely gray-dusted, with few whitish hairs and a row of short, bristly white hairs at some distance from the eye border. Eyes reddish brown, about two and a half times higher than broad in profile, with the central interior areolets much dilated; f rons much narrower than an eye, a little narrowed from vertex to antennae, pale yellowish opaque, with a very broad shining black ocellar plate, which with its obtuse fore angle is in con- tact with the lunula, leaving free only a narrow line on sides at the vertex; ocelli placed near the base of this plate, but a little removed from the vertical keel; in the female the frons is dis- tinctly narrower than in the male and entirely occupied by the shining black plate. Face pale yellowish, white-shining, much narrower than the frons, strongly raised toward the middle, in the shape of a longitudinal keel, entirely bare; jowls rather prominent, colored like the face ; mouth opening triangular ; chin short, with whitish hairs. Proboscis thin, much longer than body when exserted, black, with narrowly yellow base and broadly yellow end of lips; no distinct palpi; antennae porrect, first joint very short, whitish, bare; second joint reddish yellow, longer than the first, produced in a lobe on inner side of the third, with short black hairs ; third joint reddish yellow, darkened along the upper border, about as long as the first two joints 58 PHILIPPINE DIPTERA, II together, broad, obtuse at end with a rather thick, subapical, bare black arista, the two basal joints of which are small but distinct. Of cephalic bristles there is only one pair of strong, long, black, parallel or slightly converging, inner verticals; the sides of frons near the base have two or three short, bristly black hairs directed forward ; the rest of the frons is quite bare like the ocellar plate. Mesonotum subquadrate, as long as broad, strongly convex, dark yellowish, red, or black, with two approximate, longitudinal brown stripes which are prolonged behind a little over the middle and with- two broader but less distinct stripes on sides not prolonged over the suture in front; pleurae and breast pale yellowish, almost whitish ; humeral calli rounded, very prominent, pale yellowish. Dorsum clothed with short and scanty black hairs; bristles black, long, and strong; three posterior noto- pleurals, approximate ; three to five supra-alars ; one dorsocentral near the scutellum; one very long and strong pteropleural. Scutellum small, convex, rounded, reddish brown above, yellowish on sides and below, with one apical pair of long, diverging black bristles. Postscutellum convex, prominent, dark brownish in the middle; mesophragma narrow, yellowish. Squamae yel- lowish, with black border; halteres yellowish. Abdomen elon- gate, with parallel sides, a little narrower than, and about three times as long as, the thorax; entirely reddish yellow, rather shining, the hind borders of segments two to five with a blackish transverse band above, which is not prolonged to the sides. Second segment on sides with five or six long, bristly black hairs, the rest with short black hairs ; venter pale yellow. Male genitalia subglobose, yellow, with two brown spots above near the base, shining yellow below and with some short black ap- pendages; in middle there are two long pale yellowish cerci with short black hairs; the last abdominal sternite is in the shape of a prominent, obtuse pale yellowish point, directed for- ward. Ovipositor as long as the abdomen, strongly compressed, with the first segment yellow, the second black. Legs long, the four anterior tarsi longer than their tibiae ; hind legs distinctly stronger than the others, with rather thickened femora; the four front pairs and their coxae entirely pale yel- lowish, with the last three tarsal joints blackish ; coxae with some short and pale yellowish hairs. Hind legs with swollen reddish brown coxae ; femora yellowish, with a more or less broad brown ring near the middle; tibiae and tarsi black, the tibiae with a broad whitish ring below the middle. In the male the hind femora have on the inner side near the base a conspicuous brush PHILIPPINE DIPTERA, II 59 formed by some rows of rather long black hairs, the ends of which are curved below. Wings dark grayish hyaline, strongly iridescent with black veins. Venation normal; the first posterior cell rather broad, the bend of the fourth longitudinal vein being rounded but strong. LUZON, Laguna, Mount Maquiling (Baker}. 199. Hippobosca equina Linn. 1758. LUZON, Rizal, Alabang (Mitzmain). This is the first time that this common insect is recorded from the extreme Orient ; it has been imported into Australia and into some of the Polynesian Islands. Probably a recent introduction in the Philippines. 200. Hippobosca maculata Leach. 1817. LUZON, Rizal, Alabang (Mitzmain). This species is common in India and Ceylon and is probably spread over the entire Oriental Region. o BUREAU OF SCIENCE PUBLICATION No. 10.J Fig. 1. Head of Schizella furcicornis g. et sp. nov., from above. X 27. Fig. 2. 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