MN Vent th sh Hits acinar PONY , Hunenatinisey Varheh 0 I} + eo i\ vy 4) Pra rena ae iti ‘i MMH eiean wyetnt atria feond bettas NAt a i Hi Reta ase at Ht Ash EintaMiayil ian ca Y . itunes itl it thy Naas f Hy Haas atta ved fists i : be) 0 oo CRAG hati Nanya mse at atteqaye : va ia alt ih ia ul at i BS UR a ae as 5. i i AN Luesth yieaeathi a i a + i i . i See [as bart ty See: isin Sia: est Naresnteeda ses a , i i i } ry They hicarygt ‘WiCtArMeU tS ¥ ee Se CACC ea i ee PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES FourTH SERIES Vol. XI, No. 15, pp. 197-344, 54 text figs. DEcEMBER 14, 1921 XV. AN ANNOTATED LIST OF THE DIPTERA (FLIES) Tae OF OREGON VBY Xx par ayn F. R.~COLE Associate Curator in Dipterology, California Academy of Sciences AND A. L. LOVETT Oregon Agricultural College INTRODUCTION. In the preparation of this list we have endeavored to get a representative collection of diptera from the state of Oregon, but we have had little or no opportunity to col- lect in some of the faunal areas. Collectors in the state will at least have something to work from and we hope to see the list greatly increased in the near future. Cosmopoli- tan species have been listed without grving any particular data. Considering the great area of the state and the diversity of ecological conditions, our list seems quite small and it is intended only as a preliminary report. Aldrich’s Catalogue lists only 89 species of diptera from Oregon, but we must add to this number about 40 species having a general dis- tribution and at least six species mentioned as occurring all along the Pacific coast. Of Aldrich’s 89 species, we have been unable to find 24; seven of these are species described by Loew, five are Bigot’s species, and six are species described by Williston. One hundred and seventy-eight species in this list have been described since the publication December 14, 1921 SKY. Wass 198 CALIFORNIA ACADEMY OF SCIENCES {Proc. 41TH Sea. of the Aldrich Catalogue, and several European species are included which were not known from North America at that time. The rediscovery of many old species has been more gratifying to us than the discovery of a number of unde- scribed ones. Most of the collecting was done in the Hood River Valley, Forest Grove, the Mt. Jefferson region, and the section around Corvallis. Our collecting time has been short, as work on the list was commenced in the early summer of 1917, and most of the work had to be done in spare time. Naturally, we spent most of the limited time at our disposal in collecting specimens that were of especial interest to us; as a consequence, many of the families are not adequately represented. The diptera collection at the Oregon Agri- cultural College formed a nucleus on which to build; the earliest records are a little previous to 1900, and some speci- mens were collected in 1906 and 1907 by Mr. J. C. Brid- well. No extensive collections of Oregon diptera are known to us outside of those we have assembled. Space does not permit of a detailed comparison of this list with others, such as the New Jersey and Florida lists written by C. W. Johnson, but such a comparison is inter- esting to the student of distribution. This preliminary paper lists 953 species from Oregon; Johnson gives 845 species for Florida and 1662 species for New Jersey. Certain families of the diptera are well represented in Oregon, although only one group, the Syrphidz, has been collected extensively. In the Asilidz only one species is common to Oregon and Florida and there is no species common to Oregon and New Jersey. Each region has a distinct dipterous fauna, with a sprinkling of widely distributed forms, some of which are boreal and some cosmopolitan. PHYSICAL FEATURES OF OREGON The state of Oregon has an area of 95,607 square miles. In altitude, it ranges from sea level to over 10,000 feet on some of the mountain peaks. The annual rainfall ranges from 70 inches or more on the coast to nine inches in parts of the eastern plains region. The Cascade Range has a great effect on the climate and faunal distribution; the Coast Range has less influence, being Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 199 low and more or less broken; distinct in the north, it is merged into a complex mass in the south known as the Klamath Mountains, a joining of the Cascade, Sierra Nevada and Coast ranges. Toward the south, the general elevation west of the Cascades increases. Forest Grove is about 28 miles west of Portland in a region of rolling hills which are heavily wooded to the north and south. There is a good deal of level farmland with occasional patches of woodland or swamp. The annual rainfall is about 45 inches, the wet season coming in the winter and spring. Corvallis is about 65 miles south of Forest Grove, in what is known as the Willamette valley region. Many of our records are from Mary’s Peak, a mountain in the Coast Range of about 4,000 feet elevation, lying some 15 miles south of Corvallis. The seacoast is largely a series of sand-beaches inter- rupted by rocky headlands, and is a region of rather heavy rainfall. The summers are cool, and a heavy growth of grass and ferns spreads over the sand ridges. Several miles north of Tillamook, these ridges inclose a number of lakes. The last geological movement of the coast region here was one of subsidence, the sea advancing over the land and drowning the rivers in the lower portion of their channels. The Hood River Valley is a great sloping lava plain from the foot of Mt. Hood to the Columbia River; through this old plain the Hood River has cut a deep channel. Most of the land is very fertile and the uncleared sections are well forested. The section known as Dee is in the middle valley, much higher than the level of the Columbia. Parkdale is almost at the foot of Mt. Hood and has an elevation of about 3,000 feet. Over the eastern rim of hills lies the Mosier Valley, a different type of country. In these few miles the rainfall drops from 30 to about 12 inches, and crossing the next range of hills, we come to the Dalles, at the edge of a great, wind-swept, arid region. The picturesque region around Mt. Jefferson has fur- nished many interesting records in the diptera. Mt. Jeffer- son rises rather abruptly from the rim of Lake Pamelia, which has an altitude of 3,800 feet, and towers majestically above the timber line to the zone of gnarled and twisted 200 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. spruce and barren wastes. North of the mountain is Jeffer- son Park or Hanging Valley, set in the backbone of the Cas- cades at an elevation of 5,400 to 6,000 feet. In ages past, great glaciers moved down from the mountain and formed this park, splitting as they advanced and going both east and west; their remnants are still present on the sides of the peak. The park is a series of beautiful clear lakes, clumps of trees, and meadows. In the spring, the wild flowers car- pet the mountain meadows and the insects, while not abundant, are mostly uncommon forms, so that the collect- ing there is fascinating. Oregon east of the Cascades is largely a plateau, broken in the far east and south by mountain ranges and low rocky hills. There are many fertile valleys, but much of the region is arid. The elevation averages 4,000 feet. Scarcely any collecting has been done in the Blue Mountains country or in the southeast where there are many lakes and small streams. DISTRIBUTION Collectors in the past have noted the fact that diptera from the western United States resemble those of Europe more closely than do the species in the eastern part of the country, there being many cases of specific identity. Osten Sacken discussed this resemblence at length in his ‘‘Western Diptera.” The Trichocere are not so rare in California as Osten Sacken was led to think from his limited collecting, and in Oregon they are very abundant in the winter and early spring. The genus Villa (Anthrax) is not so well rep- resented in Oregon as farther south, but the asilid genus Cyrtopogon is rich in species, many of the forms appearing to be limited to the Lower Boreal zone. The western syrphid genera Arctophila, Pocota and Pyritis are typically north- western forms, and there are many species of Chilosia and Pipiza in this area. Two species of the cyrtid genus Eulonchus are not uncommon in parts of Oregon, but the two other known species in the genus are probably more southern in their range. The Blepharoceride are typically western diptera and are remarkably abundant in the Hood River valley of Oregon. The western fauna as a whole is limited to the line of summer dryness in its spread to the Vor. XI} COLE AND LOVETT—LIST OF OREGON DIPTERA 201 eastward, and this line seems more impassable than the Rocky Mountains. The summers are usually dry some dis- tance west of the Cascades in Oregon. The life zones of Oregon have not been worked out in detail like those of California, but the general divisions are known. Diptera are not so limited in their distribution as are the majority of plants and animals, but they are for the most part characteristic of certain areas and associations, Our material is much too meagre to work out their distribu- tion and we shall not attempt any general conclusions on this point. The coastal strip is usually known as the Canadian or lower Boreal, except around the mouth of the Columbia River where the Transition comes in. Dr. E. C. Van Dyke has recently published a paper on the life zones of Oregon, Washington, and California, and certain of his terms are used in designating the different areas. The name Van- couveran corresponds very closely to the term Transition and is applied to nearly all of Oregon west of the Cascades; the fauna it contains is quite a distinct one. The Willamette valley is pure Vancouveran and Van Dyke believes that it has changed very little since the Tertiary period. A sub- division of this zone along the coast is termed the Pacific Maritime, and is found in western Washington and the northern coast region of California; it is a region of much moisture and many species in the coleoptera tend toward melanism there. There are some evidences of this tendency among the diptera from this region. A modified branch of this Vancouveran starts in west cen- tral Oregon and runs south, including the mountains of southern Oregon and northern California; it follows along the western slope of the Cascades down into the California Sierra, possibly reaching into Lower California. In this Sierran fauna certain species seem to be broken up into rather weak races in the chaos of the Klamath Mountains. Above the Sierran we find the Canadian zone, which is not very ex- tensive in Oregon. The great Upper Sonoran area of eastern Washington pushes down in a wedge to the center of Oregon, nearly connecting with the Upper Sonoran coming up through Nevada from Mexico; here we find the Great Basin fauna. 202 CALIFORNIA ACADEMY OF SCIENCES (Proc. 4TH SER. The Hudsonian zone is narrowed in Oregon and follows down the Cascades into the Sierra of California, ascending as it goes south, until in southern California it is limited to a few mountain peaks. The zones of eastern Oregon have not been carefully worked out, but there are a number of moun- tains extending up into the Canadian and Hudsonian zones. A great many records will be added to the diptera list when this region is worked over. Many of the typical Californian zone species are not found in Oregon as far as our collecting shows, but we have obtained some of these forms and more will be found in the southern part of the state. The Van- couveran and Pacific Maritime zones are rich in species of Mycetophilidez, many of which are undescribed. ACKNOWLEDGMENTS The general arrangement of this list was planned by both authors. Prof. Lovett has written up the Syrphide and we are indebted to Mr. Leroy Childs for much of the work on the Tabanidz and for material collected at Hood River. The senior author is responsible for the work on the other fami- lies of diptera, except where material was turned over to specialists in some of the groups, and for the drawings illus- trating most of the families represented. Several dipterists have been of help to us in determining material in families in which they are specializing, and to the following we wish to express our thanks: Mr. J. R. Mal- loch, Dr. C. P. Alexander, Mr. M. C. Van Duzee, Dr. J. M. Aldrich, Prof. J. S. Hine, Dr. A. L. Melander, Mr. A. Spuler, Dr. E. P. Felt, Prof. R. C. Osburn, Mr. E. T. Cres- son, Jr., and Mr. C. H. Curran. We are also indebted to the entomologists at the Oregon Agricultural College for specimens they have collected and to the following members of the staff of tlte Forest Grove Experiment Station, Bureau of Entomology, U.S. Department of Agriculture: Mr. M. C. Lane, Mr. L. P. Rockwood, Mr. J. B. Thompsen, Mr. A. C. Burrill, Mr. C. W. Creel, and Mr. M. M. Reeher. Mr. E. P. Van Duzee has added several records from south- ern Oregon which were particularly valuable because we know so little of the diptera in that region. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 203 Family TIPULID/® Fig. 1. Nephrotoma erythrophrys Will. Wing and head from side. The craneflies are usually quite easily distinguished from the other diptera by the long legs and characteristic wing venation. They have a blunt snout and often very long palpi. One of the other distinguishing marks of the family is a V-shaped suture on the upper part of the thorax. A few species are wingless. The adults frequent meadows and edges of woods where there is a rank growth of vegetation and most are found near water. Many species come to lights. The larve are aquatic or semi-aquatic and are usually root feeders and scavengers. The terrestrial larve are com- monly known as “leather jackets” and may injure root crops. Nearly all of the species listed below were determined by Dr. C. P. Alexander; these are marked C. P. A. det. 1, Dicranomyia concinna (Will.) Hood River, VI-3 (Cole). C. P. A. det. Described as a Limnobia. 2. Dicranomyia particeps Doane Hood River, X-26 (Cole). 1908, Ent. News, XIX, p. 7. 3. Dicranomyia stigmata Doane Corvallis, IV-18. €. P. A. det. 4. Geranomyia diversa O. S. Hood River, X-30 (Cole). C. P. A. det. 5. Limnobia californica O. S. Forest Grove, IV-20 (Cole). C. P. A. det. 204 CALIFORNIA ACADEMY OF SCIENCES {Proc. 41TH Sex. 6. Limnobia sciophila O. S. Corvallis, IV-20 and V-28; Mt. Angel (Epper). C. P. A. det. Very common at Forest Grove in September and October around thickly wooded sections. A disturbance of the underbrush in more or less moist sections will often start hundreds of them into flight. 7. Dicranoptycha sobrina O. S. Forest Grove, VII-8 and 12 (Cole). 8. Ormosia subcornuta Alex. Forest Grove, III-20 to 26 and Hillsboro, IV-1 (Cole). A good series of this small form was taken in a small swampy area. 1920, Pomona College Journ. Ent. and Zoology, XII, 88. The western representative of O. mei- genii (O. S.) 9. Ormosia stylifer Alex. Forest Grove, VI-3 (Cole). C. P. A. det. 1919, Insec. Insc. Mens. VII, p. 146. A species near deviata Dietz. 10. Erioptera alicia Alex. Forest Grove, VI-3 (Cole). C. P. A. det. Two females collected. Previously known from the single type female from Calif. 1914, Proc. Acad. Nat. Sci. Phila., LXVI, p. 585. 11. Erioptera oregonensis Alex. Tillamook, III-26 (A. C. Burrill). 1920, Pomona Col- lege Jour. Ent. and Zoology XII, 87. 12. Molophilus comatus Doane Hood River, X-1 (Cole). C. P. A. det. 13. Molophilus nitidus Coq. Hood River, VI-2 (Cole) ; Forest Grove, V-4 (Burrill). 14. Helobia hybrida (Meig.) Corvallis, V-29; Hood River VI-8 (Cole). C. P. A. det. Vou. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 205 15. Cladura oregona Alex. Forest Grove, [X-30 (Cole). C. P. A. det. 1919, Insec. Insc. Mens., VII, p. 147. 16. Crypteria americana Alex. Mt. Angel (Epper). 1917, Can. Ent., XLIX, p. 29. 17. Phyllolabis latifolia Alex. Forest Grove, III-28 (Cole). 1920, Pomona College Journ. Ent. and Zoology, XII, p. 90. 18. Limnophila cressoni Alex. Corvallis, 1V-29 (Cole). C. P. A. det. 1917, Can. Ent., XLIX, p. 208. 19. Eriocera sp. near eriophora Will. Grant Co., VII-1 (Chamberlin). One mutilated speci- menhy sb As det. 20. Tricyphona ampla Doane Corvallis, [X-25; Forest Grove, V-5, 20 and X-3 (Cole). GaP. Ae det: 21. Tricyphona aperta Cog. Hood River, VI-8 (Cole). det. with a doubt by Alex- ander. 22. Tricyphona constans Doane Forest Grove, III-29 (Cole). C. P. A. det. 23. Tricyphona sparsipunctata Alex. Corvallis, V-14 (Moulton); Hillsboro, IV-1 (Cole). 1920, Pomona College Journ. Ent. and Zoology, XII, p. 90. 24. Polyangzus maculatus Doane Forest Grove, V-20 (Cole). One specimen. 25. Ctenophora angustipennis Loew Common at Corvallis and vicinity in April and May, but taken as late as October 29. The tunnels of the larve in 206 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4rH Sern. dead heartwood of prune trees allows the winter rains to soak in and Prof. Lovett has found the species to be of some economic importance for this reason. 26. Nephrotoma californica (Doane) Corvallis, VI-2. 1908, Ent. News, XIX, p. 176. 27. Nephrotoma erythrophrys (Will.) Joseph. C. P. A: det. 28. Nephrotoma ferruginea (Fabr.) Hood River, VI-3 to 15 (Cole). The larve were col- lected around the bases of strawberry plants in large numbers in early May, at which date some had commenced to pupate. The damage to the plants could not be easily estimated as the strawberry-root weevil was at work in the same places. €. P. A. det: 29. Nephrotoma macrophallus (Dietz) Forest Grove, VII-8 (Cole). C. P. A. det. 1918, Trans. Amer. Ent. Soc., XLIV, p. 114. 30. Holorusia rubiginosa Loew Corvallis, VI-10; Oswego; Cascadia, VIII; Hood River, VI (Cole). 31. Tipula equalis Doane Forest Grove, VII-22 (Cole). 32. Tipula albofascia Doane Corvallis, V-22-1898. 33. Tipula angustipennis Loew Corvallis; Forest Grove, IV-20 to V-10 (Cole); Gia: A. det. 34. Tipula armata Doane Corvallis; Forest Grove, V-17 (Cole). C. P. A. det. 35. Tipula californica Doane Corvallis IX-25; Forest Grove V-20 (Cole). C. P. A. det. 1912, Annals Ent. Soc. Amer., V, p. 49. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 207 36. Tipula carinata Doane Corvallis, X-26 to XI-21. 37. Tipula fallax Loew Corvallis, [V-18 to V-9. 38. Tipula pubera Loew Corvallis, V-12 (Gentner). C. P. A. det. 39. Tipula retusa Doane Forest Grove, VII-22 (Cole). C. P. A. det. ) 40. Tipula Apernax OFS: Corvallis, V-5 and IV-19 (Cole). C. P. A. det. 41. Tipula streptocera Doane Corvallis, VI-13. C. P. A. det. 42. Tipula tristis Doane Forest Grove, V-5 (Cole). 43. Tipula unicincta Doane Corvallis, V-25. C. P. A. det. 44. Tipula usitata Doane Corvallis, VI-2. Family PTYCHOPTERIDEZ These crane-flies are distinguished from the Tipulide by having the V-shaped suture poorly defined and by lacking the second anal vein. The larve are quite remarkable in structure, having an extensile, elongated breathing tube on the caudal end. The pupa has one of the thoracic horns greatly elongated and breathes through this while the body is covered with mud or water. 45. Ptychoptera lenis O. S. Hood River, VI-5 (Cole). C. P. A. det. 208 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SzR. 46, Bittacomorpha occidentalis Aldr. Hood River, VI-3 (Cole). This is undoubtedly the species recorded from Oregon by Osten Sacken in “Western Diptera” atclavipes. 47. Bittacomorphella! sackenii (R6der) Hood River, VI-5 (Cole). C. P. A. det. Family RHYPHID#= Fig. 2. Rhyphus alternatus Say. Wing, and head from above. This small family should be changed from the old position as it is now connected with the Tipulide through the Trichocerine. The flies of the genus Trichocera are quite different from the others of the family in general appearance and wing venation, but the early stages are so near the Rhyphinz that they have recently been placed in their present position by Dr. Alexander. 48. Rhyphus alternatus Say. Corvallis, V-25; Albany, V-2 and Forest Grove, IV-20 (Cole). 49. Trichocera? colei Alex. Forest Grove, XI-11, III-20, 26, and Hillsboro, IV-1 (Cole). C. P.A: det. 1919, Gan. Ent; LE, p. 1625 Pace types of this species were reared from turnips at Vancouver, Wash., Dec. 12, 1918 (Wm. Giles). 1Genus Bittacomorphella Alexander 1916, Proc. Acad. Nat. Sci. Phila., LXVIII, p. 545. 2The species of this genus in North America will have to be compared with the European forms before they can be made out with any certainty. Many of the species seem to be holarctic and it is probable that some of our names are synonyms, Some of the species collected in Oregon could not be deter- Mined owing to this condition in the taxonomy of the group. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 209 50. Trichocera trichoptera O. S. Forest Grove in Dec., Jan. and Feb. (Cole). C. P. A. det. Family DIXIDZ Small slender flies, all belonging to the genus Dixa. There are eight species listed from North America. The adults resemble mosquitoes but are not pilose and do not bite; they are found in moist localities where there is abundant vegeta- tion. The larve are aquatic and resemble mosquito larve. 51. Dixa centralis Loew Hood River, X-1 (Cole). Family PSYCHODID asi eZ Li Le U. oe Te PSSS= a NERA = Fig. 3. Psychoda cinerea Banks. The moth-flies are attracted to lights in great numbers. Some are found on tree trunks and many in damp, shady places, often on the undersides of leaves or on the surface of some stagnant pond. They are also found on windows and in outhouses in the winter and spring. Many of the species have aquatic larve, Maurina (Peri- coma) preferring swift streams and being provided with ventral suckers on the abdomen. Some larve occur in cow- dung and in decaying vegetable matter. The larve have spiracles and tracheal gills. 210 CALIFORNIA ACADEMY OF SCIENCES (Proc. 4TH Ser. 52. Psychoda cinerea Banks Common at Hood River and Forest Grove in late Decem- ber and January. On rainy days many could be found under old sheds or in protected places on the bark of trees; females were observed about excrement. 53. Psychoda schizura Kincaid Hood River, VII-9 (Cole). 54. Psychoda sigma Kincaid Forest Grove, III-28 and VI-3 (Cole). On the latter date collected at light. 55. Pericoma sitchana Kincaid Hood River, VI-19 (Cole). Family CHIRONOMID#E Fig. 4. Chironomus colei Malloch. This family, the midges, now includes two subfamilies, the Tanypine and Chironomine. They might be called “sun- set-flies,” often appearing in swarms at that time. Many are seen in the air in the autumn, dancing in the sunshine, usually near some body of water. They can be collected at lights in large numbers. The adults resemble mosquitoes superficially, but have poorly developed mouth parts and the costa is not continued all the way around the wing. The males, as in the Culicidez, have feathery antenne. Midges usually alight with the fore legs in the air and mosquitoes as a rule raise the hind legs. Vor. XIJ COLE AND LOVETT—LIST OF OREGON DIPTERA 211 Almost all the species are aquatic in the early stages, the larve feeding on decaying vegetable substances and tiny aquatic organisms. A few are terrestrial, one lives in sap and one species mines the leaves of water plants. Many species furnish food for trout. 56. Chironomus colei Mall. Forest Grove, VI-3 (Cole). 1919, Proc. Cal. Acad. Siw Sena 4an kG pe 202 57. Chironomus plumosus (Linn.) Corvallis (Churchill) . 58. Chironomus riparius Meig. Forest Grove, III-10, 20 and VI-3 (Cole); Hillsboro, IV-1 (Cole). 59. Chironomus viridis Macq. Forest Grove, V-17 (Cole). 60. Tanytarsus? dissimilis Johann. Forest Grove, VI-2 (Cole). At light. 1905, N. Y. State Museum, Bull. 86, p. 292. 61. Tanytarsus fatigans Johann. Forest Grove, III-28 (Cole). 1905, N. Y. State Mu- seum, Bull. 86, p. 292. 62. Tanytarsus obediens Johann. Forest Grove, IV-5 (Cole). 1905, N. Y. State Museum, Bull. 86, p. 286. 63. Tanytarsus politus Mall. Forest Grove, III-20 and VI-3 (Cole); Forest Grove, V-4 (Burrill). 1915, Bull. Ill. St. Lab. Nat. Hist. X, p. 493. 64. Metriocnemis flavifrons Johann. Forest Grove, III-26 to I[V-14 (Cole). 1905, N. Y. State Museum, Bull. 86, p. 301. 3A number of species were collected at Forest Grove which could not be determined with certainty; some of them are probably undescribed. 212 CALIFORNIA ACADEMY OF SCIENCES (Proc. 4TH Sex. 65. Cricotopus slossonz Mall. Forest Grove, VI-3 (Cole). At light. 1915, Bul. Ill. St. Lab. Nat. Hist. X, p. 506. 66. Cricotopus trifasciatus Panz. Forest Grove, VI-3 (Cole). At light. 67. Camptocladius byssinus Schrank Very common at Forest Grove in early spring, often seen in swarms in sunny afternoons; III-3 to IV-5 (Cole). 68. Orthocladius* obumbratus Johann. Forest Grove, III-28 and VI-3 (Cole); Hillsboro, IV-1 (Cole). 1905, N. Y. State Museum, Bull. 86, p. 281. 69. Orthocladius nivoriundus Fitch Forest Grove, IIJ-28 and Hillsboro, IV-1 (Cole). 70. Orthocladius sordidellus Zett. Forest Grove, VI-3 (Cole). At light. 71. Diamesa chorea Lundb. Forest Grove, VI-3 (Cole). At light. 72. Paraclunio alaskensis (Coq.) Several specimens of this curious chironomid were taken at Seaside Beach by L. G. Gentner, VIII-15-1914. Aldrich lists the species from Newport in his Catalogue. 73. Tanypus dyari Coq. Forest Grove. III-4 (Cole). 74. Tanypus flavifrons Johann. Forest Grove, V-14 (Cole); Hillsboro IV-1 (Cole). 1905, N. Y. State Museum Bull. 86, p. 150. 75. Tanypus monilis (Linn.) Forest Grove, III-26 to VI-3 (Cole). 4Species of this genus were common in the spring and early summer at Forest Grove and several of those collected are apparently undescribed. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 213 Family CERATOPOGONID/E We follow Malloch in making this group a family sep- arate from the Chironomide. Here belong the ‘“‘punkies” or “no-see-ums” which are wicked biters and are so small that an ordinary net will not keep them out. The thorax is large, but does not project over the head as in the true Chirono- mide. The species of Culicoides are especially bloodthirsty; some of the other genera are said to attack insects, attaching themselves to the body and wings. The larve of most are aquatic or semi-aquatic, often being found in decaying wood that is submerged. 76. Culicoides biguttatus (Coq.) Forest Grove, VI-3 (Cole). Taken at light. Malloch det. 77. Culicoides sanguisugus (Coq.) Forest Grove, VI-3 (Cole). Taken at light. Malloch det. 78. Forcipomyia cilipes (Coq.) Forest Grove, VI-3 (Cole). Malloch det. Taken at light. 79. Serromyia femorata (Meig.) Forest Grove, V-5 (Cole). Malloch det. 80. Hartomyia> mallochi Cole, new species Fig. 5. Hartomyia mallochi Cole, n. sp. Wing of holotype. Female: Length 1.5 mm. Head and its appendages black, the antenne brownish black with pale pile. Mesonotum, scutellum and postnotum black subshining, the bristles black. Scutellum with a bristle on each side near the base and two 5This genus was erected by Malloch in 1915, Bull. Ill. State Lab. Nat. Hist. X, Art. VI, p. 339. December 14, 1921 214 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. apical bristles. Pleura black, mostly shining. Halteres black- ish near the base, the knob whitish. Abdomen dull black, nearly devoid of pile on the basal half, the apical half with longer sparse brown pile. Legs entirely brownish black, the tarsal claws large and equal. Basal joint of hind tarsus a little less than twice as long as second joint; joints of the tarsi with pile longer than their diameters. Tip of hind tibia with several short bristles. Wings whitish hyaline, the anterior veins heavy and brown- ish yellow, the other veins very thin; petiole of the media about the length of the cross vein (see fig. 5) ; cubitus forks distinctly proximad of the cross vein. Holotype, female, No. 828, Mus. Calif. Acad. Sci.; F. R. Cole collector, March 28, 1919. Type locality, Forest Grove, Oregon. The species would run to couplet 6 in Malloch’s table of species, but differs from antennalis in size, color of halteres, and in lacking spines on the last tarsal joint. It is larger than arctica with large tarsal claws. The species is named for Mr. J. R. Malloch, the author of the genus, whose fine paper on the Chironomidz of Illinois has been very useful in work- ing up this family. Family CULICIDE Fig. 6. Culex pipiens Linnzus. Vor. XI} COLE AND LOVETT—LIST OF OREGON DIPTERA 215 The mosquitoes have the wings clothed with scales and there is no discal cell; the ocelli are lacking. Not all species bite and only a few come into houses. They are found at all altitudes and in all lands, myriads occurring in the Arctic. Birds and dragon-flies prey on the adults, and the larve serve as food for fishes and dragon-fly nymphs. The larve are aquatic, some requiring little water for their development. They differ in habits, some feeding on decaying vegetable material and others preying on small organisms. 81. Anopheles occidentalis D. & K. Corvallis; Klamath Falls (Dyar and Caudell). 1906, Proc. Biol. Soc. Wash., XIX, p. 159. 82. Anopheles punctipennis (Say) Corvallis; Forest Grove, II and III (Cole); Portland, VI-30 (Dyar and Caudell). 83. Anopheles pseudopunctipennis Theob. Corvallis, IX-6; Forest Grove, II-17 to XII-7 (Cole). 84. Theobaldia annulata (Schrank) Reported from Calif. to B. C. in Aldrich’s Catalogue. 85. Culiseta consobrina (Desv.) Warm Springs. 86. Culiseta incidens (Thoms.) Corvallis (Theobald); Klamath Falls (Dyar and Caudell). 87. Culiseta inornata (Will.) Klamath Falls (Dyar). Reported from Cal. to B. C. 88. Culiseta sylvestris (Theob.) Fish Lake. 89. Culiseta stigmatosoma (Dyar) Klamath Falls (Dyar). 1907, Proc. U. S. Nat. Mus. XXXII, p. 123. 216 CALIFORNIA ACADEMY OF SCIENCES (Proc. 4TH Sep. 90. Culex pipiens Linn. Forest Grove, III-26 (Cole). 91. Aedes curriei (Coq.) Burns; Klamath Falls VII-27 (Dyar and Caudell) ; Cor- vallis. 92. Aedes hexadontus Dyar? Corvallis. Dr. Dyar in making the determination of this and the following species stated that males were necessary for a certain determination of the species. 1916, Ins. Insc. Menstr., IV, p. 83. 93. Aedes palustris Dyar Corvallis. 1916, Ins. Insc. Menstr., IV, p. 89. 94. Aedes varipalpus (Coq.) Ashford (Dyar and Caudell) ; Portland (Currie). Family MYCETOPHILID® Fig. 7. Boletina atra Cole, n. sp. Drawing of holotype. In the fungus-gnats the abdomen ends in a forceps-like process in the males, and in a pointed ovipositor in the females. The thorax is usually highly arched. Malloch has recently divided this group into five families but in this paper only the Sciara group is considered as a separate family. The adults are found in situations conducive to fungus Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 217 growth, damp, dark places, and can often be swept from grass in shady places. Some are found on tree trunks; and windows in old deserted houses are good places to collect in certain seasons. Western Oregon is undoubtedly rich in forms of this group and the list given below could be greatly increased by one interested in the family. In addition to the species we have listed there are some which could not be identified with certainty, owing to the lack of material or to the imperfect condition of the specimens. One species each of Leia, Brachypeza, Rhymosia, Odontopoda and Mycomya were taken and six species of Mycetophila, which could not be identified. 95. Bolitophila hybrida (Meig.) Forest Grove, III-28 (Cole); Tillamook, III-26 (Bur- rill). 96. Symmerus annulatus (Meig.) Several specimens, taken at Corvallis, IX-10 (Cole), are probably this species, which has been recorded from New Jersey and New Hampshire. The wing venation is the same as that given in Williston’s Manual on page 134 (Ples- tiana), but the wing is more pointed. 97. Diadocidia borealis Coq. Forest Grove, II-10, III-14 and V-2 (Cole). In one female the tip of the first radial vein is distinctly proximad of the end of the anterior branch of the cubitus. 98. Apemon® maudz (Cog.) Corvallis, V-3 to V-30. 99. Apemon pectoralis (Coq.) Corvallis, VI-4. 100. Platyura nigra Cole Forest Grove, V-20 (Cole). 1919, Proc. Cal. Acad. Sci. Seriya los, pe 222. 101. Macrocera formosa Loew Hood River, V-2 (Cole). 61909, Genera Insectorum, Mycetophilidz, p. 20. 218 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 102. Tetragoneura pimpla Coq. Forest Grove, II-17 (Cole). 103. Tetragoneura quintana Cole, new species Male: Length, 3.5 mm. General body color black. Head black, the palpi and other mouth parts blackish brown. Antennz blackish, the third joint twice as long as wide, the succeeding joints decreasing in length to the last joint, which is half again as long as the penultimate. Mesonotum, scutellum, pleura and postnotum black, with a brownish tinge, made lighter by the gray pollen. Bristles of thorax yellowish. Halteres brownish yellow, the knobs darker. Abdomen dull blackish brown with sparse yellowish pile. Hypopygium blackish brown, the lower forceps rather large, the tip excavated, with a yellow thorn below. Hind legs blackish brown, including the coxe; middle legs with the femora yellowish brown; fore legs with the coxe, femora and base of tibe more or less yellowish. Wings grayish hyaline, the costa and radial veins heavy and dark brown, the other veins thinner and paler; subcosta ends in R, nearer the base of the radial sector than the humeral cross-vein. Cell R, very small, usually forming a small triangle; anterior branch of cubitus detached at base but reaching proximad of base of R-M cross vein. Female: Much like the male, the femora paler. Geni- talia yellowish. The basal two joints of the antenne yel- lowish and angles of pronotum yellow. Holotype, male, No. 829, and allotype, female, No. 830, Mus. Calif. Acad. Sci.; F. R. Cole, collector, March 27, 1919. Type locality, Forest Grove, Oregon. This is the fifth species in the genus Tetragoneura one of which is a fossil species. The one described above is in the group with bicolor and pimpla, where the subcosta ends in R, but differs in color from both of these, in the shape of the cell R,, and in the forking of the cubitus, the anterior branch not being detached in the related species. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 219 104. Sciophila hirta Meig. Forest Grove, III-15 (Cole). One female was taken and the description given by Johannsen fits it exactly. The length is 5 mm and the length of the wing 5 mm. It is a European species reported from Greenland. 105. Dziedzickia’? immaculata Cole Forest Grove, V-2 (Cole). 1919, Proc. Cal. Acad. Sci. Ser 4, EX, p: 222: 106. Dziedzickia oregona Cole Forest Grove, II-10 (Cole). 1919, Proc. Cal. Acad. Sci., Ser. 4, EX; p: 223. 107. Mycomya mendax Johann. Forest Grove, II-10 and V-2 (Cole). 1910, Maine Agr. Exp. Sta., Bull. 180, p. 182. 108. Neuratelia® coxalis (Coq.) Forest Grove, III-28 (Cole). Several specimens collected. 1905, Jl. N. Y. Ent. Soc., XIII, p. 68 (Anaclinia). 109. Boletina atra Cole, new species Male: Head, thorax, and abdomen black. Antenne and mouth parts black. First two antennal joints about as broad as long, the last joint longer than any of the preceding eight. Mesonotum, pleura and scutellum thinly gray pollinose; the median dorsal stripe on mesonotum semishining, wedge- shaped and divided by a longitudinal row of short yellow bristles; on either side of the median vitta is a faintly defined oval spot destitute of pollen; bristles of the thorax yellow. Halteres yellow. Abdomen, including the genitalia, opaque black; pile of the genitalia black, the rest of the abdominal pile yellowish. Lateral claspers of the genitalia with two small curved apical spines and a larger yellow pre-apical spine. Fore coxe more or less yellow, the two hind pair black. Femora and tibiz yellowish, the trochanters and tips of the hind femora brown; tarsi blackish brown; tibial spurs brown. Wings 71909, Genera Insectorum, Mycetophilidz, p. 44. 81856, Dipterologie Italice, Prodromus I, p. 195. 220 CALIFORNIA ACADEMY OF SCIENCES (Proc. 4TH SER. nearly hyaline, the apical half grayish; costal and radial veins heavy and black, the other veins lighter; Sc ends in C slightly beyond base of Rs; Cu forks slightly distad of the base of the R-M cross vein; costa prolonged beyond tip of Rs nearly half way to M, (see fig. 7). Female: Very nearly the same as the male in color and structure. The last antennal joint proportionately shorter than in the male. Genitalia brown. Holotype, male, No. 831, and allotype, female, No. 832, Mus. Calif. Acad. Sci.; F. R. Cole, collector, March 14, 1919. Type locality, Forest Grove, Oregon. The writer collected three female paratypes at Forst Grove and Hillsboro, Oregon, a little later in the year. The species is very near sobria Johannsen. A single male of a closely related species was collected at about the same time and near the same place; this form is.clearly separable only by characters of the male genitalia. 110. Boletina inops Coq. One pair taken at Forest Grove, I-10 (Lane); same locality, X-11 (Cole). 111. Leia winthemi Lehmann Forest Grove, IX-14 (Cole). 112. Phthinia curta Johann. Forest Grove, [I-20 and XII-17 (Cole). 1911, Fungus Gnats of N. A., part III, p. 291. 113. Ccelosia flavicauda Winnertz Hood River, X-11 (Cole). 114. Ceelosia pygophora Coq. Forest Grove, III-21 (Cole). One specimen taken. 1904, Proc. Ent. Soc. Wash., VI, p. 170. 115. Rhymosia sp. A., Johann. Forest Grove, V-17 (Cole). 1911, Fungus Gnats of N. A., part III, p. 310. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 221 116. Telmaphilus tenebrosa (Coq.) A single male, taken at Forest Grove, III-21 (Cole), in most respects answers the description of the female given by Cogquillett. It differs in having all of the coxe blackish, the femora and tibiz brown, the tarsi blackish brown. Wings as figured by Johannsen. 117. Exechia® cincinnati Johann. Forest Grove, V-5 and XI-15 (Cole). 1912, Fungus Gnats of N. A., part IV, p. 69. 118. Exechia obediens Johann. A very common species in winter and early spring at Forest Grove. 1912, Fungus Gnats of N. A., part IV, p. 73. 119. Exechia umbratica (Aldr.) Corvallis, XI-15. 120. Dynatosoma nigrina Johann. Forest Grove, III-6 (Cole). One female collected. 1912, Fungus Gnats of N. A., part IV, p. 75. 121. Mycothera fenestrata (Coq.) Forest Grove, II-10 to XII-13 (Cole). One of the com- monest mycetophilids in this locality. 122. Mycetophila falcata Johann. Forest Grove, V-2 (Cole). 1912, Fungus Gnats of N. A., part IV, p. 93. 123. Mycetophila fatua Johann. Forest Grove, II-25 (Cole). op. cit. p. 102. 124. Mycetophila lassata Johann. Forest Grove, III-6 (Cole). op. cit., p. 101. 125. Mycetophila lenta Johann. Tillamook, III-26 (Burrill). op. cit., p. 102. 9The species of this genus are very difficult to separate, the male genitalia offering the best characters for classification. There are at least five undeter- mined species in material collected at Forest Grove from April to December. 222 CALIFORNIA ACADEMY OF SCIENCES _ [Proc. 47H Ser. 126. Mycetophila monocheta Loew Forest Grove, IV-5 (Cole) ; Corvallis, I-14 (Gentner). 127. Mycetophila mutica Loew Forest Grove, III-6 (Cole). Large series taken. 128. Mycetophila mutica var. A, Johann. Forest Grove, III-14 (Cole). 1912, Fungus Gnats of N.A., ‘part IV, p:'95, 129. Mycetophila perita Johann. Forest Grove, V-14 (Cole). op. cit., p. 90. 130. Mycetophila punctata Meig. Forest Grove, V-14 (Cole) ; Tillamook. III-26 (Burrill). This is one of the commonest and most widely distributed species. The Oregon specimens are darker than eastern specimens in my collection. 131. Mycetophila scalaris Loew Hood River, X-2 (Cole). Family SCIARIDZE These small flies are separated from the Mycetophilide by several dipterists and are easily recognized by the vena- tion and much shorter coxe. The larve are scavengers but some do damage to mush- rooms. Many species breed in leaf mold. 132. Sciara!° scita Johann. Newport (Aldrich), type locality. 1912, Fungus Gnats of N..A., part TV, p. 135: 133. Neosciara!! munda (Johann.) Forest Grove, IIJ-26 and IV-5 (Cole). 1912, Fungus Gnats of N. A., part IV, p. 127. 10Several species of this genus were taken which cannot be identified with certainty without male specimens; some are probably undescribed. 11918, Ann. Ent. Soc. Amer. XI, p. 320. Vor. XI} COLE AND LOVETT—LIST OF OREGON DIPTERA 223 134. Eugnoriste occidentalis Coq. Albany, VI-17 (Creel). This species has a long proboscis and feeds on flowers. Family CECIDOMYIID= Fig. 8. Hormosomyia oregonensis Felt. Drawing of homo-topo- type. In the little gall-midges the antenne are many jointed and often with whorls of hairs. There are usually three longi- tudinal veins and the costa continues around the wing. The family is an immense one and the larval habits vary somewhat. A great majority of the species cause abnormal growths on plants and some are recognized by their galls alone. Scarcely any material was taken in this family, most of that sent to Dr. E. P. Felt being probably undescribed. More specimens will be required before the identification of the species of Lestremia, Prionellus, Rhabdophaga and Lasiop- tera can be made with certainty. A female of a species of Lasioptera taken near Forest Grove has 36 antennal seg- ments, more than have been recorded from any other Amer- ican species according to Dr. Felt. 224 CALIFORNIA ACADEMY OF SCIENCES — [Proc. 47H Ser. 135. Mayetiola destructor (Say) This famous wheat pest, known as the Hessian Fly, is found west of the Cascades in Oregon and often does con- siderable damage. 136. Aphidoletes meridionalis Felt Specimens taken at Forest Grove and Corvallis (Rock- wood and Lovett). 1908, N. Y. State Mus., Bull. 124, p. 397: 137. Prionellus boulderensis Felt Recorded from Oregon by Felt. 138. Dasyneura leguminicola (Lintn.) The clover seed midge, common throughout western Ore- gon and an important pest in many clover growing sections. 139. Hormosomyia!? oregonensis Felt Forest Grove, X-10 (Cole). Described as a new genus and species in the Porricondylariz in the article referred to above. It is one of the non-gall-making species. —Two males were taken of this species. 140. Colpodia colei Felt Forest Grove, VI-2 (Cole). This species is described by Dr. Felt as related to C. americana. 1919, Ent. News, XXX, p. 223. 12 y919, Ent. News, XXX, p. 220. Vor. XIj COLE AND LOVETT—LIST OF OREGON DIPTERA 225 FAMILY BIBIONIDZZ Fig. 9. Bibio nervosus Loew The males and females of these ungainly little “March flies” often differ considerably, the females having grotesque little heads. They emerge in April and May and often on bright sunshiny days they will appear in swarms, sailing about in an aimless sort of way. The larve have a false segment behind the head which is well developed and has spiny processes. They are scaven- gers, feeding on decaying vegetable matter or excrement. A few feed on grass roots. 141. Bibio hirtus Loew This species is usually less common that the following and emerges a week or more later. It has been reported as in- jurious to turnips in one section of the state. 142. Bibio nervosus Loew Very common in spring and early summer. 143. Bibio variabilis Loew Reported from Oregon by Coquillett. 226 CALIFORNIA ACADEMY OF SCIENCES (Proc. 4TH Ser. 144. Dilophus serotinus Loew Odell, X-14 (H. F. Wilson). 145. Dilophus tibialis Loew Hood River, VI-8 (Cole). Family SCATOPSID Zz Fig. 10. Scatopse notata Linn. These very small black flies were formerly included in the Bibionidz but now are generally given family rank. The costa and two veins next to it are thickened, the other veins being very weak. The larve of all the known species are recorded as breeding in excrement. Several species have been bred from sewers. 146. Scatopse notata Linn. Corvallis, XI-30 (Bridwell) ; Crystal Lake VI-8. 147. Rhegmoclema!s atrata (Say) Hood River, X-3 (Cole) ; Corvallis. 148. Reichertella!* collaris Mel. Corvallis, IX-10 (Cole), 1916 Wash. Exp. Sta., Bull, 130, p. 10. 13912, Zool. Anzeiger, XL, p. 276. 141912, Zool. Anzeiger, XL, p. 268. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 227 Family SIMULIID Fig. 11. Prosimulium fuluum (Coq.) These tiny flies are easily recognized and are variously known as black-flies, buffalo gnats and sand-flies. The females “bite”, as many are willing to testify, and are some- times very troublesome to stock and man. The larve live in running water, often in swift currents, and feed on small animals and alge. Peculiar fans on the head create a current toward the mouth. They are anchored to rocks by a suck- ing disc near the tail and by a silken line, and breathe by means of a peculiar organ near the tip of the body; the larve move like geometrid larve. 149. Prosimulium fulvum (Coq.) Pamelia Lake, Mt. Jefferson, elevation 3,000 feet. (Brid- well). Malloch det. 150. Prosimulium hirtipes (Fries.) ‘Sand Mountain, VI-20; Dee, VI-17 (Cole); Forest Grove, IV-20 (Cole); Mt. Jefferson, VII-15 (Bridwell). Malloch det. Vv 151. Simulium bivittatum Mall. Hood River (Cole). Very common in July in the willow flats along the Columbia River. They make their appear- ance about sundown and late bathers then are glad to put 228 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Sex. on their clothes and go home. 1914, U. S. Bur. Ent., Tech. Series, No. 26, p. 31. 152. Simulium vittatum Zett. Narrows, VII-1. Malloch det. Family BLEPHAROCERID/E Fig. 12. Bibiocephala grandis O. S. These flies could be mistaken for Tipulide at first glance. The venation is quite characteristic and there are creases in the membrane which give the impression of a secondary venation. The females are predaceous. The larve live in swift streams, attaching themselves to rocks by means of ventral suckers. They feed on minute aquatic organisms. Many of the flies are swept away in the swift current as they emerge from the pupal cases, being unable to get their wings unfolded in time. This may account for the few species in existence. These flies are not uncommon along some of the swift streams of Oregon and one species of Blepharocera taken in the Hood River valley, as well as a small species of Bibio- cephala occasionally collected, will be described later by Mr. Leroy Childs. ‘These two undescribed species were not found in any such numbers as were the two forms listed below. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 229 153. Bibiocephala grandis O. S. Common at Hood River along the stream of that name. The first specimens were collected about the middle of May and were seen in large numbers up to the early part of June. They fly clumsily, like some of the tipulids, and will dash headlong into anything that happens to be in their way. 154. Bibiocephala comstocki Kell. This species emerged later than grandis and was more abundant; its season was much longer and it was more active. In resting on the leaves of plants it would usually fly to the under side of the leaf and hang by its feet. In the swift water of the upper Hood River these flies could be seen flying and hovering close to the surface of the stream; they seemed to prefer shady places and were often flying after sundown. Family STRATIOMYID#= Fig. 13. Odontomyia hoodiana Bigot The so-called “‘soldier-flies” have a strikingly characteris- tic wing venation; when at rest the wings are laid flat and overlapping on the abdomen. The abdomen is usually broad and flattened. The adults are flower flies, the smaller species being quite active and the larger ones usually slow. December 14, 1921 230 CALIFORNIA ACADEMY OF SCIENCES (Proc. 4TH Ser. 155. Beris annulifera Bigot Hood River, VI-8, 20 (Cole). The larve of-the Berinz are terrestrial and have been bred from moss. : 156. Scoliopelta luteipes Will. Multnomah Falls, [X-30 (Cole), two females taken in grass around a small spring. Williston had two males from Mt. Washington, N. H., which were 7 mm. in length. These specimens are about 9.5 mm.; the antenne are more than two-thirds as long as the distance from their base to the ocelli, and there are a few other slight discrepencies, but these may be sexual differences. 157. Sargus pallipes Bigot Hood River, VI-21 (Cole). This species like others of the genus, is found on the leaves of plants, usually in the sunlight. 158. Sargus picticornis Bigot Hood River, V-15 (Cole). 159. Sargus tricolor Loew Corvallis, V-12 and VII-7. 160. Sargus viridis Say Very common at Hood River and Forest Grove during early summer. 161. Stratiomyia atra Cole Empire, Coos Co., VII-27. 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 223. 162. Stratiomyia barbata Loew Hood River, VI-21 (Cole). 163. Stratiomyia discalis Loew Hood River, VI-6 to VI-21 (Cole). 164. Stratiomyia laticeps Loew Reported from Oregon by C. W. Johnson. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 231 165. Stratiomyia maculosa Loew Common at Hood River, V-19 to VII-7 (Cole). 166. Stratiomyia melanostoma Loew Reported from Oregon by C. W. Johnson. 167. Odontomyia arcuata Loew Umatilla, VII-14 (H. F. Wilson). 168. Odontomyia cincta Oliv. Blitzen River, VII-6; Ashland, VI-21 (Chamberlin). 169. Odontomyia hoodiana Bigot Described from Mt. Hood. Quite common in the lower Hood River Valley during the month of June. Collected on marshy ground sloping toward the river. 170. Odontomyia pilosa Day Described from California; Bigot described it five years later, as pyrrhostoma, from Mt. Hood. 171. Euparyphus apicalis Coq. Hood River, [X-4 (Cole). 172. Clitellaria lata Loew Corvallis, V-8 to VI-2; Mary’s Peak and Kiger’s Island. Family TABANIDZ Fig. 14. Tabanus procyon O. S. These flies are commonly known as “horse-flies”, “‘gad- flies’, ‘‘deer-flies”, ‘‘green-heads’’, etc. They have short, broad heads and the eyes are often colored. The mouth 232 CALIFORNIA ACADEMY OF SCIENCES [Paoc. 47H Sex. parts are a series of sharp lancets (four in the male, six in the female), enclosed in a lip-like organ. They are remarkable fliers and are fond of warm weather and sun- shine. The males do not bite; feed on plant nectar or honey- dew secreted by plant lice or scale insects. The larve are found in rotting logs, under stones in ditches, or in mud along streams or other bodies of water. They are predacious and feed on various little animals. 173. Pangonia dives Will. Hood River, VII-26 (Childs). 174. Pangonia fera Will. Described from Mt. Hood. Horse Lake, VII-25; Mt. Jefferson, VII-27 (Bridwell). 175. Chrysops coloradensis Bigot Rickreall, VII-23 (Allen). Hine det. 176. Chrysops discalis Will. Warm Springs, VII-7. 177. Chrysops excitans Walk. Mt. Jefferson, VII-12 (Bridwell); Horse Mt. Flats, VII-30. Cole det. 178. Chrysops lupus Whitney Pamelia Lake, VII-27 (Bridwell); Corvallis, IX-26; Grant Co., VII-14. 179. Chrysops noctifer O. S. Parkdale, VI-18 and Dee, VI-17 (Cole); Mt. Jefferson, VII-12 (Bridwell) ; Whitman Nat. Forest, VII-14 (Cham- berlin). 180. Chrysops pachycera Will. Buck Mt., VII-19. Cole det. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 233 181. Chrysops proclivis O. S. Common at Parkdale, VI-18 (Cole and Childs). Cole det. 182. Chrysops surdus O. S. Mt. Jefferson, VII-16 (Bridwell) ; Pamelia Lake, VII-19 (Bridwell). 183. Tabanus zgrotus O. S. Williston reports this species from Oregon. Corvallis; Mackenzie Ridge, VIII-27; Lava Lake, VII-25 (Lovett). Cole det. 184. Tabanus captonis Marten Hood River, VIII-1 (Childs) ; Corvallis, V-12; Grant Co., VII-13; Whitman Nat. Forest, VII-14 (Chamberlin) ; Subalpine regions on Mt. Jefferson, VII-20; Mary’s Peak, VII-18 (Gentner) ; Horse Lake, VII-25 (Bridwell). Hine det. 185. Tabanus centron Marten Whitman Nat. Forest, VII-14 (Chamberlin). Cole det. 186. Tabanus epistatus O. S. Hood River, VII-22 (Childs); Whitman Nat. Forest, VII-14 (Chamberlin) ; Grant Co., VII-8. Cole det. 187. Tabanus insuetus O. S. Blitzen River, VII-6; large series from Whitman Nat. Forest, VII-11 (Chamberlin) ; Burns, VII-29. Cole det. 188. Tabanus intensivus Towns. Horse Lake, VII-30 (Bridwell). Cole det. 189. Tabanus laticeps Hine Whitman Nat. Forest, VII-12 (Chamberlin) ; Big Lake, VII-20 (Bridwell). Cole det. 190. Tabanus leucophorus Bigot Described from Mt. Hood. 234 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 191. Tabanus lineola Fabr. Hood River, VII-17 (Childs) and VI-25 (Cole). 192. Tabanus opacus Coq. Whitman Nat. Forest, VII-18 (Chamberlin). 193. Tabanus osburni Hine Large series from Whitman Nat. Forest, June and July (Chamberlin) ; Corvallis. Hine det. 194. Tabanus phznops O. S. Corvallis, V-30; Whitman Nat. Forest, VII-14 (Cham- berlin). 195. Tabanus procyon O. S. Corvallis, V-29; Dee, VI-17 (Cole). This species is ap- parently rare in the northwest. Osten Sacken in his descrip- tion in ““Western Diptera” does not mention the long, black pile on the under and outer side of the femora, and the long, rather sparse, black pile on the tibiae. The third antennal joint has scarcely any basal projection. Cole det. 196. Tabanus punctifer O. S. Crooked River, VII-23; Mt. Jefferson, VIII-14 (Lovett) ; Corvallis, VII-22. 197. Tabanus rhombicus O. S. Horse Lake, VII-25 (Bridwell). Hine det. 198. Tabanus sequax Will. Hood River, VII-1 (Childs) ; Mt. Jefferson, VII-6 (Brid- well) and VIII-14 (Lovett); Mary’s Peak, VII-14 (Lovett). Hine det. 199. Tabanus sonomensis O. S. Whitman Nat. Forest, VII-14 (Chamberlin) ; Wilson River, VIII-6 (Reeher). 200. Tabanus zonalis Kirby Three Sisters, VII-20 (Bridwell) ; Corvallis, V-20. Cole det. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 235 201. Silvius gigantulus (Loew) Corvallis, IV-15; Subalpine regions on Mt. Jefferson, VII-20 (Bridwell) ; Whitman Nat. Forest, VII-11 (Cham- berlin) ; Sumpter, VII-5 (Wilson). Family RHAGIONIDE (LEPTID#) Fig. 15. Rhagio dimidiata (Loew) In these flies the thorax is rounded and the abdomen usually pointed. The mouth parts are prolonged into a beak projecting downward and backward. Some of the species are predaceous but they are as a rule rather sluggish and are often found on flowers.. They can be collected in dense woods on the tall grass and ferns and around swampy land. Some of them rest on the trunks of trees, usually head down- ward. The females of Symphoromyia attack man. Some forms are called ‘“‘snipe flies.” The name Leptide has long been applied to the family but as Rhagio Fabr. has priority over Leptis Fabr. the family name must change accordingly. 202. Arthroceras pollinosum Will. Forest Grove, VII-8 (Cole). A single female of this rare species was taken in a densely wooded section. It was flying about close to the ground over small weeds and grass and was mistaken at the time for a species of Chrysopila. 236 CALIFORNIA ACADEMY OF SCIENCES (Proc. 4TH See. 203. Dialysis aldrichi Will. -Hood River, VI-12 (Cole) ; Wallowa, VI-8 (Creel). 204. Triptotrichia discolor Loew Forest Grove, VI-2 (Cole); Corvallis, V-15 (Lovett) ; Mary’s Peak. 205. Triptotrichia lauta Loew Corvallis, V and VI; Rock Creek, VII-14 (Lovett). 206. Rhagio albibarbis (Bigot) Hood River, VI-2 and Forest Grove, V-17 (Cole). 207. Rhagio costata (Loew) Corvallis, VII-17; Forest Grove, VI-18 (Reeher) ; Cor- vallis and Newport in May. 208. Rhagio dimidiata (Loew) Dewey, V-29; Corvallis, V-28 and V-7 (Lovett) ; Forest Grove, V-2 (Cole). 209. Rhagio hoodiana (Bigot) Described from Mt. Hood. 210. Rhagio incisa (Loew) Hood River, V-16 and 21 (Cole) 211. Rhagio maculifera (Bigot) Forest Grove, VI-5 (Cole). 212. Rhagio pruinosa (Bigot) Described from Mt. Hood. 213. Chrysopila!> testaceipes Bigot Hood River, VI-2 to VI-24 (Cole). Aldrich det. 214. Chrysopila tomentosa Bigot Hood River, VI-2 to VII-5 (Cole). Aldrich det. 15SOne species in this genus, fairly common at Hood River, is apparently undescribed. : Vor. XI} COLE AND LOVETT—LIST OF OREGON DIPTERA 237 215. Symphoromyia atripes Bigot Joseph. 216. Symphoromyia inquisitor Aldr. Corvallis, V-29. 1915, Proc. U. S. Nat. Mus., XLIX, p. 127. 217. Symphoromyia kincaidi Aldr. Mt. Jefferson, VII-15 (Bridwell). 1915, Proc. U. S. Nat. Mus., XLIX, p. 129. 218. Symphoromyia latipalpis Bigot Described from Mt. Hood as fulvipes. 219. Symphoromyia pachyceras Will. Described from Mt. Hood as trivittata. Corvallis, V-30; Forest Grove, V-2 (Cole). 220. Symphoromyia plagens Will. Described from Mt. Hood. Corvallis, VI-14; five males at Parkdale, VI-18 and one female, in the act of biting, at Hood River, VII-17 (Cole). 221. Hilarimorpha obscura Bigot Two specimens taken at Hood River, VI-2 (Cole). Family XYLOPHAGID A: This family has been included under the Rhagionide by many dipterists. The imagines are found in the woods, and frequent flowers. The larvz live in earth or under the bark on trees and are predaceous; they are quite distinct from the larve of the Rhagionide. 222. Xylophagus decorus Will. Corvallis, V-17; Mary’s Peak, V-16 (Gentner). 223. Xylophagus gracilis Will. Reported from Oregon by Williston. 224. Xylomyia parens (Will.) Toledo; Corvallis, VII-18 (A. B. Black). 238 CALIFORNIA ACADEMY OF SCIENCES (Proc. 47H Sx2. Family CYRTIDE Fig. 16. Pterodontia misella O. S. These curious little flies are usually very rare. The thorax and abdomen are large and inflated in appearance, and the head, which is composed almost entirely of the compound eyes, is quite small. All the species in North America have three pulvilli and enormous squamez. Great variations occur within the family, especially in the wing venation and struc- ture of the mouth parts. The larve are parasitic in the bodies or egg cases of spiders as far as known and appar- ently this parasitic mode of life has modified the structure of the flies. 225. Pterodontia misella O. S. Described from Oregon. One specimen from Forest Grove, VI-5-1918 (M. C. Lane); a single female from Mary’s Peak, V-15 (Moznette). 226. Eulonchus sapphirinus O. S. A large series taken at Parkdale, VII-12 (Cole and Childs) ; Forest Grove, VI-3 and 5 (Cole); Mt. Jefferson, VIII-15 (Bridwell) ; Corvallis, V-20; Mary’s Peak, VI-6 (Lovett) ; Buck Mt., VII-10. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 239 227. Eulonchus tristis Loew Several specimens taken at Parkdale, VI-18 (Cole and Childs) ; Alsea, Benton Co., VIII-6 (Bridwell) ; Lava Lake, VII-25 (Lovett); Mt. Jefferson, V-12 (Bridwell). 228. Acrocera melanderi Cole Corvallis, VIII-18 (F. H. Lathrop). 1919, Trans. Amer. Ent. Soc., XLV, p. 55. The type was taken in Gallatin Co., Mont., elev. 6,400 feet, 1918. 229. Oncodes melampus Loew Shedd, V-30; Hood River, VI-8 (Childs). Family NEMESTRINID/E Fig. 17. Rhynchocephalus sackeni Will. These are sometimes known as the Tangle-vein flies, be- cause of the complex wing venation. The antennz are small and the proboscis rather elongate; the female has a long ovipositor. The adults are flower frequenting and quite rare. The early stages are not well known. The larve of one species are parasitic on a beetle. 230. Rhynchocephalus sackeni Will. Forest Grove, VII-31 (Reeher) and VIII-12 (Lane) ; Mary’s Peak; Corvallis, VII-19; Lewisburg, VII-5 (Black) ; Union Co., VII-18 (Black). 240 CALIFORNIA ACADEMY OF SCIENCES (Proc. 47H Ser. Family SCENOPINID = Fig. 18. Scenopinus fenestralis Linnzus The name ‘‘window flies” is often applied to the members of this family because they are frequently found in houses on the windows. The adults are small, slender, and rather flattened; the wing membrane is smooth and there are two veins from the discal cell. The larve are closely allied to those of the Therevide and are predaceous. The larve of Scenopinus fenestralis are found in rotten wood and fungi, and under carpets in houses, where they feed on the larve of the “‘moths’”’. 231. Scenopinus fenestralis (Linn.) Forest Grove, VIII-20 (Cole). Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 241 Family MYDAID/® “0 Ny Fig. 19. Leptomydas pantherinus Gerst. These flies resemble the Asilide in form. They are sup- posed to be predaceous but do not have mouth parts which would bear this out. 232. Leptomydas pantherinus Gerst. Medford, VII; Hood River, VII-25 (Cole). Twelve males and one female taken at Hood River in one day. One male is an allotype in the collection of the California Academy of Sciences. The males were observed flying along the Mt. Hood Railway over sandy ground in the heat of the day. 1919) Proc: Cal: Acad? 'Sci-, Ser: 4, col. IX, p: 228. Family THEREVID Fig. 20. Psilocephala munda Loew Comstock called these ‘“‘stiletto-flies’” on account of their general form. The adults resemble robber flies but are not 242 CALIFORNIA ACADEMY OF SCIENCES [Praoc. 4TH SER. as strongly built and the eyes do not protrude above the ver- tex; the abdomen of most species is slender and the wings of all the known American species have five posterior cells. They have been recorded as preying on other diptera, but must capture very small species as their mouth parts would not permit them to kill the prey selected by their more robust relatives, the robber flies. The larve are long and slender, with segments | to 6 so constructed that they appear to have twenty segments. They live in mold, rotten wood, and in the ground, and prey on other insects or their larve. The metamorphoses are not well known. 233. Psilocephala aldrichii Coq. Burns, Mt. Jefferson, VIII-14 (Lovett) ; Hood River, VI-20 and Forest Grove, VII-12 (Cole). 234. Psilocephala costalis Loew Hood River, VII-3 (Cole). A large number were taken on the foliage of strawberry plants. 235. Psilocephala munda Loew Multnomah Falls, [X-30 (Cole). 236. Psilocephala notata Wied. Hood River, VI-4 to VI-20 and Forest Grove, VII-12 (Cole). 237. Thereva fucata Loew Crook Co., VII-14 (Lovett) ; McDermitt, Malheur Co., VIII-20 (J. R. Bunch). 238. Thereva hirticeps Loew Horse Lake, VII-25 (Lovett). 239. Thereva johnsoni Coq. Hood River, VII-5 (Cole); Forest Grove, V-20, bred from rotting debris in stump. (Rockwood). 240. Thereva vialis O. S. Quite common in Hood River in June and early July; Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 243 collected mostly on sandy stretches along the Hood River on bright sunny days (Cole). 241. Dialineura crassicornis (Will.) Common at Hood River, V-10 to VI-26 (Cole). The habits are like those of Thereva vialis. Williston described the species in the genus Thereva. 242. Metaphragma planiceps (Loew) Burns, V-19 (B. G. Thompson). Family BOMBYLIIDE > Fig. 21. Epacmus nitidus Cole, n. sp. Drawing of holotype. The “‘bee-flies” are usually more or less covered with fur- like hair and look less like bees than some other flies; one group is furnished with a long proboscis. During the spring and summer they are often seen hovering in the air. They are flower feeders and creatures of the sunshine. Their flight is very quick, but consists of short dashes, and they are often seen resting on the ground or on low plants in the sun. The larve are parasitic, predaceous, or inquilinous. Some are decidedly beneficial, being parasitic on injurious species. 243. Spogostylum anale (Say) Forest Grove, IX-15 (Thompson and Cole). A few females were taken along Gale’s Creek; the males, with num- bers of other insects, were flying around some small pine trees in the afternoon sunshine. 244 CALIFORNIA ACADEMY OF SCIENCES [Proc, 41H SER. 244. Spogostylum argentatum Cole Hood River, VI-20 to VII-5 (Cole). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 227. This species was collected around old burned pine logs, like many others of the genus. 245. Spogostylum cedipus (Fabr.) Parkdale, Dee and Hood River in June (Cole). 246. Spogostylum pauper (Loew) Parkdale and Hood River in June (Cole). 247. Spogostylum stellans (Loew) Parkdale and Dee in June (Cole and Childs). 248. Spogostylum varium (Fabr.) Mosier and Parkdale, VI (Cole) ; Hood River, VI-16 to VII-16 (Cole). 249. Exoprosopa capusina (Fabr.) Hood River, VII-9 to VII 25 (Cole). 250. Exoprosopa doris O. S. Hood River, VII-28 (Cole). 251. Exoprosopa eremita O. S. Pendleton, VII-17 (Thomson). 252. Dipalta serpentina O. S. Hood River, VII-28 to IX-20 (Cole). 253. Villa!® alternata (Say) This rather variable species is common in Oregon in July, but the typical form was not collected. 254. Villa atrata (Coq.) Hood River, VII-25 (Cole). These big flies appear to be on the wing most of the time, flying around in large cir- cles close to the ground. 16There is some difference of opinion as to the acceptance of this name for the old genus Anthrax as currently understood. Vor. XT) COLE AND LOVETT—LIST OF OREGON DIPTERA 245 255. Villa autumnalis (Cole) Colestin, VIII-1 (E. P. Van Duzee). This species, to- gether with fuliginosa and willistonii, belongs to the sub- genus Pecilanthrax. 1917, Jl. N. Y. Ent. Soc., XXV, p. 71. 256. Villa edititia (Say) Sherwood, VII-12. 257. Villa eumenes (O. S.) Corvallis, V-20 and VI-3; Hood River, VI-12 (Cole). 258. Villa fuliginosa (Loew) Hermiston, [X-18 (Rockwood). 259. Villa fulviana (Say) Colestin, VII-31 and VIII-1 (E. P. Van Duzee) ; Cor- vallis, EX-10 (Cole). 260. Villa inops (Coq.) Hood River, VI-7 and VII-10 (Cole). 261. Villa lateralis (Say) Colestin, VII-1 (E. P. Van Duzee); Corvallis, Hood River, Forest Grove and the Dalles. Common in the summer. 262. Villa macula (Cole) Hermiston, [X-18 (Reeher); The Dalles, VII (Moz- nette). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 226. 263. Villa miscella (Coq.) Hood River, VII-10 (Cole). One specimen. 264. Villa morio (Linn.) Hood River, VI and Parkdale, VII-2 (Cole). This com- mon species has been bred from bees of the genera Antho- phora, Megachile and Andrena. 265. Villa sinuosa (Wied.) Hood River, VII-9 to X-1 (Cole) ; Colestin, VII-31 and Ashland, VIII-2 (E. P. Van Duzee). December 14, 1921 246 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Sez. 266. Villa vana (Cogq.) Hood River, VII-25 (Cole); The Dalles; Lakeview (Thompson). 267. Villa willistoni (Cogq.) Crook Co., VIII-14 (Lovett). 268. Lepidanthrax inauratus (Coq.) Hood River, VI-3 to VII-9 (Cole). Not uncommon. 269. Pantarbes pusio O. S. Burns, VI-1 (Thompson). 270. Bombylius aurifer pendens Cole Hood River, VI-2 to VI-20 (Cole). 1919, Proc. Cal. Acad: TScl.,) Serica, lG pu 220: 271. Bombylius metopium O. S. Corvallis, 1V-29; Hood River, V-8 to VI-3 (Cole). Osten Sacken described only the male in his “Western Diptera.” The description will apply to the female in most respects. In the female there is a tuft of silvery tomentum-like pile on each side of the frons, between the antennz and the eye margin, which is very noticeable. Frons with short yellow pile and some long, black pile; pile of occiput whitish. 272. Bombylius albicapillus Loew Large series taken at Hood River in early summer (Cole) ; Corvallis, V-15 to VI-3; Burns, V (Thompson). There is a great variation in the color of the pile and in the intensity of the wing markings. In some females the pile is almost entirely reddish, in others sordid, whitish. The amount of black pile on the abdomen varies. The silvery pile on the occiput of the male is noticeable at some distance in life. These flies were parasitic in the nests of a species of Halictus at Hood River. 273. Bombylius lancifer O. S. Corvallis, VI-9; Whitman Nat. Forest; Buck Met., VII-9; Hood River, VII-20 and Parkdale, VI-18 (Cole). Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 247 274. Bombylius major Linn. Common at Hood River and Corvallis and probably in many other parts of Oregon. Corvallis, III-4 to IV-24. Latest date at Hood River, V-28 (Cole). 275. Bombylius silvus Cole Parkdale, VI-8 (Cole). 1919, Proc. Cal. Acad. Sci. Ser., A Dp 225% 276. Heterostylum robustum O. S. Lewisburg, VII-5 (Black). 277. Anastoechus barbatus O. S. Hermiston, [X-18 (Rockwood). This form has in the past been made a synonym of nitidulus Fabr., the European species, but Cresson has recently compared European speci- mens with ours and believes it best to keep Osten Sacken’s name. 1919, Proc. Acad. Nat. Sci. Phila., LX XI, p. 179. 278. Systoechus oreas O. S. Common at Hood River and Forest Grove in June and July. 279. Ploas amabilis O. S. Burns, V-19 (Thompson). A single specimen. This species undoubtedly occurs in eastern Oregon in large num- bers as it is common in parts of arid, eastern Washington. 280. Ploas atratula Loew Common at Hood River, V-10 to VI-22 (Cole). 281. Ploas fenestrata O. S. Hood River, V-8 to VI-22 (Cole); Burns, V (Thomp- son). 282. Ploas melanocerata (Bigot) Hood River, VI-2 to VI-26 and Mosier, VI-14 (Cole and Childs). 248 CALIFORNIA ACADEMY OF SCIENCES [Proc. 41TH Ser. 283. Ploas nigripennis Loew Several specimens from Hood River, V-5 to VI-24 (Cole); Mary’s Peak, V-16 (Lovett); Corvallis, V-4; Pamelia Lake, VII-19. 284. Lordotus apicula Coq. Burns, VI-19 (Thompson). 285. Lordotus gibbus Loew Lakeview, VIII-24 (Thompson) ; Freewater, IX-28 ; Her- miston, [X-18 (Rockwood). 286. Acreotrichus americanus Coq. Hood River, V-10 (Cole). 287. Eclimus celer Cole Parkdale, VI-18 (Cole). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 224. 288. Eclimus lotus Will. Quite common at Hood River, VI-5 to X-1 (Cole). Females were collected around old burned logs and lumber piles. Like many other bombylids they will alight in a cer- tain place in the sunlight, and, if frightened, will keep return- ing to the same spot. Apparently auratus Will. is the same as this species. Wil- liston described both species on the same page (Kansas Univ. Quarterly, vol. 2, No. 2), but lotus has at least para- graph priority. The type of Jotus was a male specimen from California; auratus was described from two females from the state of Washington, and might easily be thought another species. The female is much brighter colored than the male, unrubbed specimens being almost entirely covered with golden tomentum on the dorsum of the thorax and abdomen. There is considerable variation in size in the species. 289. Eclimus luctifer (O. S.) Parkdale, VI-18 (Cole) ; Hood River, VII-5 and Forest Grove, VII-8 (Cole); Joseph; Cascadia, VII-21. Several Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 249 specimens of what we take to be this species were collected at Hood River; some are quite small. The wings are in- fuscated and the anal angle much reduced. The male has traces of golden tomentum above, and perfect specimens of females are nearly covered above with these scales as in E. lotus. This species is usually much smaller than Jotus, but is very near it. 290. Eclimus magnus (O. S.) Forest Grove, VI-3 to VI-18 (Cole and Lane) ; Joseph. Allotype described, 1919, Proc. Cal. Acad. Sci. Ser. 4, IX, p22). 291. Eclimus marginatus (O. S.) Hood River, VI-2 to VI-24 (Cole). 292. Eclimus muricatus (O. S.) Hood River, VI-12 (Cole); Dee and Parkdale in June (Cole and Childs) ; Grant Co. This big black species was collected on old burned logs. 293. Eclimus sodalis Will. Mosier, VI-14 and Dee, VI-17 (Cole). Three female specimens agree very well with the description of this species. One specimen from Mt. Jefferson, VIII-1 (Lovett), has the pile of the occiput whitish and not yellowish; halteres with a blackish knob; pile of thorax, pleura and pectus white. The base of the third antennal joint is rather broad. 294. Epacmus sp. Mosier, VI-14 (Cole). A single female of an unde- scribed species was taken on the same day with the new species described below. It is a very distinct species, but until the male is collected it will not be described. 295. Epacmus nitidus Cole, new species Male: Length 6 mm. Black, with yellow tomentum and pile. The occiput and cheeks dull grayish black with some yellowish and white tomentum and short yellow pile above that barely reaches the cheeks. Proboscis black and pro- 250 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. jecting beyond the oral margin about the length of the labelle; palpi yellow with short yellow hairs. Frontal tri- angle and face pruinose, with short yellow pile except at apex of the triangle, the pile of the oral margin longer. Antenne black, the styliform portion of the third joint about as long as the thick basal portion. Eyes separated by less than width of front ocellus. Thorax shining black with yellow and white tomentum and faint indications of three white vitte. Pile and bristles yellowish. Scutellum rounded, shining black, and bare except for a basal line of orange-yellow scales; the scales just in front of the scutellum obscuring the ground color. Pleura and coxe densely gray pollinose with some yellow- ish and white pile. Femora black except the yellowish tip; the tibie reddish yellow; first three joints of tarsi yellowish, the last two brown. Wings hyaline; subcostal cell yellow, the costal and first vein yellowish brown, the rest blackish. Halteres yellow. Abdomen shining black with yellowish and white scales, denser at the bases of the segments. Pile at sides of first segment erect, whitish, bristle-like, the rest of the pile sparse and whitish. Venter densely covered with white tomentum and white pile. Most of genitalia black, more or less yellow below. Female: Much like the male. Proboscis projecting al- most half its length beyond the oral margin. The upper half of frons shining black with a few short black hairs; lower half pruinose and yellow pilose, the shining black reaching down a little on the sides (see fig. 21). Last ab- dominal segment laterally compressed, with a fringe of short golden pile. Holotype, male, No. $33, and allotype, female, No. 834, Mus. Calif. Acad. Sci.; F. R. Cole, collector, June 14, 1917. These types are on the same pin and were taken in coitu. Type locality, Mosier, Oregon. This species is near E. pallidus Cresson, but has a long antennal style; most of the wing veins are blackish, the scutellum not emarginated and no brown tomentum on abdomen. In E. modestus the lower part of the face is polished. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 251 296. Aphcebantus borealis Cole, new species Male: Length 6 mm. Black, shining in ground color. Head black, the proboscis black and not projecting beyond the oral margin; palpi yellow. Occiput pruinose above with short yellow pile and yellowish scales. Antenne black, the styliform portion of third joint about as long as the thick- ened basal portion. Thorax shining black with white and yellow tomentum and yellow pile. Scutellum with yellowish tomentum at base and tip, the rest bare and shining black; bristles of thorax and scutellum reddish. Pleura gray pollinose with some whitish scales near the center; whitish pile above front coxe, yellowish along dorso-pleural suture. Abdomen black, thickly covered with brownish yellow tomentum above, white on first segment and_ posterior margin of second. Long, erect, whitish pile at sides of first segment. Venter with whitish scales not obscuring ground color. Genitalia rather large, about one-third as long as the rest of the abdomen, black, yellowish on the sides. Pile above on genitalia sparse and rather long, shorter below. Legs white and yellow tomentose, hind femora with several short bristles but no long hairs below. Femora black except tip, the tibie and tarsi reddish. Halteres yellow. Wings hyaline, the apical two-thirds of subcostal cell yellowish. Holotype, male, No. 835, Mus. Calif. Acad. Sci.; F. R. Cole, collector, June 25, 1917. Type locality, Hood River, Oregon. Of this species a single specimen was taken; it runs to couplet 20 in Coquillett’s table of species (Trans. Amer. Ent. Soc., XXI, p. 105), and there the characters do not apply as the hypopygium is not “‘small and not more than half as long as the abdomen.” 297. Aphcebantus peodes O. S. Hood River, VI-3 (Cole). Described from Mexico. 298. Geron senilis (Fabr.) Hood River, VII-25 (Cole). 252 CALIFORNIA ACADEMY OF SCIENCES (Proc. 47H Sze. 299. Rhabdopselaphus sigma (Coq.) Dee, VI-17 (Cole). 300. Toxophora maxima Coq. Hood River, VI-13 to [X-4 (Cole). Family ASILIDZ& Fig. 22. Cyrtopogon thompsoni Cole, n. sp. Drawing of holotype. The robber-flies vary in size from one-third of an inch to two inches in length. A few are bright colored, but the majority of the species are sober gray with black markings. The head is short, the eyes widely separated in both sexes and bulging out; the body is more or less bristly in all the species. These flies are very savage and catch much of their prey in mid-air, even killing other asilids. Wasps, moths and even large grasshoppers are pounced upon, the choice of the victims depending upon the size of the brigand. Certain genera seem to prey on certain orders of insects. The larve are generally beneficial, as probably all prey upon other insect larve, either in the ground or in rotten wood. eS me Vou. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 253 301. Leptogaster aridus Cole Hood River, VII-17 (Childs); Forest Grove, VII-12 (Cole). 1919, Proc. Cal. Acad. Sci. Ser. 4, IX, p. 229. 302. Stenopogon breviusculus Loew Corvallis, VI-30; Ione, VII-22. 303. Stenopogon californiz (Walk) Mackenzie Ridge, alt. 6,000 feet, VIII-1; Detroit, VII-11 and Burns (Bridwell); Parkdale, VI-18 (Cole); High Ridges, 6,000-8,000 feet in Cascade Mts., Marion Co., VIII-1. In these last specimens the thorax is almost entirely covered with black pile, but otherwise they are typical. 304. Stenopogon inquinatus Loew Hood River VI-7 (Cole); Bend, V-19. 305. Stenopogon morosus Loew Ione, VII-22; Marysville, VII-15; Hood River, VII-9 (Cole). 306. Docilonus simplex Loew Hood River, VI-5 to VI-26 (Cole). 307. Dioctria media Banks Corvallis, VI-12 (Bridwell). 1917, Psyche XXIV, p. 118. 308. Dioctria nitida Will. Large series from Rock Creek, near Corvallis, VI (Lovett). 309. Dioctria sackeni Will. Listed from Mt. Hood by Dr. E. A. Back. 310. Dioctria vertebrata Cole Parkdale, VI-12 (Cole). 1919, Proc. Cal. Acad. Sci. Ser. 4, IX, p. 230. 254 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Sen. 311. Cyrtopogon anomalus Cole Hood River, VI-13 and Forest Grove, VIIJ-10 to VIII-12 (Cole). 1919, Proc. Cal. Acad. Sci. Ser. 4, IX, p. 231. 312. Cyrtopogon auratus Cole Joseph, Cascade Mts., Marion Co., VII-30. 1919, Proc. Cal: Acad. Sci. Ser. 4, 1X4 3p. 250: 313. Crytopogon bimacula ( Walk.) One specimen, a male, Mt. Jefferson, VII-20 (Bridwell). This is considered an eastern species, but Dr. Back in his monograph mentions four males and two females collected on the peaks of Los Vegas Range, N. Mexico. 314. Cyrtopogon dasylloides Will. Parkdale, VI-18 (Cole). 315. Cyrtopogon dubius Will. Described from Oregon. 316. Cyrtopogon infuscatus Cole Pamelia Lake, Mt. Jefferson, VII-12 (Bridwell). 1919, Proc. Cal. Acad. Sci. Ser. 4, [X, p. 233. 317. Cyrtopogon leucozona Loew Joseph; Grant Co., VI-20 to VII-3. 318. Cyrtopogon nebulo O. S. Subalpine regions on Mt. Jeffersons, VII-25 (Bridwell). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 232. Descrip- tion of allotype. 319. Cyrtopogon nugator O. S. Dee, VI-17 (Cole) ; Joseph, VII-17 (Chamberlin). The last mentioned specimens predaceous on Scolytide. 320. Cyrtopogon perspicax Cole Hood River, VI-15 to VI-22 (Cole). Linn Co., V-24 (Lovett)... 1919, Proc. Cal. Acad. Sci., Ser. 4, UX, p. 233: Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 255 321. Cyrtopogon przepes Loew Big Lake, VII-20 (Bridwell); Hood River, VI-13 (Cole) ; Burns, V (Thompson), a series which differs from the typical form in having the middle of the hind tibie red. 322. Cyrtopogon princeps O. S. Subalpine regions of Mt. Jefferson, VII-20 (Bridwell) ; Horse Lake, 6,000 feet, VII-25; Mackenzie Ridge, 6,000 feet, VIII-1 (Bridwell). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 234. 323. Cyrtopogon rejectus O. S. Dee, VI-17 and Parkdale, VI-12 (Cole). 324. Cyrtopogon sudator O. S. Parkdale, VI-18 (Cole) ; Hood River, V-14 (Lovett). 325. Cyrtopogon thompsoni Cole, new species Black, gray pollinose, with distinct black thoracic stripes; yellowish and white pile mixed with black. Male: Length 11 mm. Face and frons whitish pollinose, the ground color more or less obscured. Black pile on sides of face on upper occiput next to eye margin and along lower occiput, cheeks, and oral margin. Pile of center of face and frons long and whitish. Antenne black, the arista rather short and blunt; white pile below on first joint, a long black bristle under second joint. Occiput and head below with long, white pile. Dorsum of thorax rather thinly gray pollinose, white pilose anteriorly and posteriorly, black across the middle. The two dorsal vitte are narrow and distinctly separated, gray-black, somewhat shining, as are the side spots. The space in front of scutellum more or less destitute of pollen in this specimen. Scutellum slightly flattened on disk but with scarcely any pollen and thickly covered with long, erect, pale yellowish pile. Pleura gray pollinose, with some whitish pile on the meso- and sternopleura; a tuft of pile in front of the halteres. Halteres yellow. Whitish bristles on pre- scutellar callosities, the other thoracic bristles black. 256 CALIFORNIA ACADEMY OF SCIENCES (Proc, 4TH Sez. Abdomen shining black with pollinose posterior borders, complete on second, narrowly interrupted on first, third, and following segments. Pile entirely whitish, longer and tuft-like on the sides of the first three but more or less cov- ering all the segments, including the genitalia. Legs entirely black, including the ungues. Femora and basal two-thirds of tibie white pilose. First three joints of tarsi white pilose, especially long and tuft-like on the middle pair. Most of the bristles of the legs black but with a few white ones inter- mixed. Wings hyaline, the veins black; anterior cross vein a little before the middle of the discal cell. Female: Resembling the male in many respects. White pile of face much thinner, the antennal arista a little longer and more slender and pointed. Thorax more thickly pol- linose and the markings more distinct, the two dorsal vitte interrupted some distance from the scutellum by gray pollen; pollen distinctly visible on the disk of the scutellum. Hal- teres reddish yellow. Second, third and fourth segments of abdomen with a complete pollinose band, the fifth inter- rupted, the following entirely shining black. Segments fol- lowing the third with very short, sparse white pile. Holotype, male, No. 836, and allotype, female, No. 837, Mus. Calif. Acad. Sci.; B. G. Thompson, collector, May 1919. These types are on the same pin and were taken in coitu. Type locality, Burns, Oregon. The species is quite a distinct one and is in the group which has the scutellum flattened and pollinose; it runs to couplet 17 in Back’s synoptic table but is quite different from evidens. 326. Cyrtopogon varipennis Coq. Parkdale, VI-8 (Cole). 1904, Proc. Ent. Soc. Wash. VI, p. 184. 327. Lasiopogon bivittatus Loew Hood River, V-15 to VI-24 (Cole). Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 257 328. Lasiopogon cinereus Cole Hood River, V-28 to IX-24 (Cole). 1919, Proc. Cal. Wead. Sci. ser) 4, EXGip, 229: 329. Heteropogon ludius (Coq.) Lookingglass, VI-14 (Black). 330. Heteropogon senilis Bigot Mt. Hood (Coquillett). 331. Pycnopogon cirrhatus O. S. Hood River, VI-6, VII-7 and Mosier, VI-14 (Cole). This species is not a typical Pycnopogon. It has more the appearance of Heteropogon. 332. Lestomyia sabulonum (O. S.) Burns, VI-1 (Thompson) ; Ashland, VIII-2 (E. P. Van Duzee) ; Mosier, VI-14 (Cole). The* Mosier specimens vary somewhat from the typical form but the species is apparently very apt to show slight variations in chetotaxy and color. 333. Cophura brevicornis (Will.) Hood River, VI-20 to VIII-1 and Forest Grove, VI to VII (Cole); Ashland, VIII-2 (E. P. Van Duzee). This species is not typical of the genus but as many of the other species in the genus are just as aberrant it may as well be left there. 334. Cophura cyrtopogona Cole Dee, VIII-1 (Childs). 1919, Proc. Cal. Acad. Sci., Ser. Ae IDS Job CE. 335. Nicocles emulator (Loew) Forest Grove, VI (Lane), only one specimen taken. A series collected at Hood River in May and June is very near this species. Only males were taken and these had only the last abdominal segment silvery. Possibly it will prove to be an undescribed species. CALIFORNIA ACADEMY OF SCIENCES (Proc. 47H Sen. 258 336. Nicocles dives (Loew) Large series taken at Hood River in V, VI and VII (Cole and Childs). They have the usual habits of the genus, perching on the tips of dead branches or tall grass stems. From these watch towers they flash out on some unsuspecting little wayfarer whose fate has been written. The silvery tips of the abdomen of the males glitter in the sunlight and are visible some distance away. Aphids, among other small insects, are a part of their food. 337. Nicocles rufus Will. Hood River, VI-5 (Cole). One female taken. 338. Pogonosoma dorsata (Say) Mary’s Peak, VII-1891; Sherwood; Santiam Nat. Forest, VIII-11. 339. Laphria felis crocea McAtee Mt. Hood (H. K. Morrison). 1918, Ohio Journ. Science, XIX, p. 163. 340. Laphria ferox Will. Corvallis (Lovett). J.S. Hine det. 341. Laphria gilva (Linn.) Hood River, VI-16 (Cole). 342. Laphria sadales Walk. Described from Oregon as pubescens by Williston. Park- dale, Dee, and Hood River in June (Cole) ; Corvallis, VII-7 (Lovett); subalpine regions on Mt. Jefferson, VII-12 ( Bridwell). 343. Laphria vivax Will. Corvallis, one specimen, collector unknown; Corvallis, VIII-18 (Lovett). 344. Laphria vultur O. S. Hood River and Parkdale, VI-12 to VII-5 (Cole) ; Lava Lake, VII-25 (Lovett); Corvallis, V-19 to VIII-23; Big Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 259 Lake; Mary’s Peak; Mt. Jetterson; Santiam Nat. Forest. These big flies are usually found on old pine logs in the sun- light and are very wary; they usually return to the same place however, after a rather abrupt and rapid flight. In some specimens the wings are much paler than in others. 345. Laphria xanthippe Will. Horse Lake, VII-25 and Mt. Jefferson; Pamelia Lake, alt. 3,000 feet, VII-30 (Bridwell). McAtee has recently made this a variety of felis O. S. 346. Dasyllis astur Loew Reported from Oregon by Williston. 347. Dasyllis californica Banks Parkdale, VII-12 and Hood River, VI-6 (Cole) ; Pamelia Lake, Mt. Jefferson, VII-25 (Bridwell) ; Corvallis, V-29; Elk Beds, Mt. Hood, VIII-10 (Bridwell). 1917, Bull. Brookl. Ent. Soc., XII, p. 54. 348. Dasyllis columbica Walk. Corvallis, V-11; Mt. Jefferson, VII-20 (Bridwell) ; Mary’s Peak, VII-14 (Lovett). 349. Dasyllis fernaldi Back Pamelia Lake, Mt. Jefferson, 3,000 feet, VIII-6 (Brid- well). 1904, Can. Ent., XXXVI, p. 290. 350. Dasyllis sackeni Banks Corvallis, V-14 (Lovett) ; Colestin, VII-30 (E. P. Van Duzee). 1917, Bull. Brookl. Ent. Soc., XII, p. 54. 351. Proctacanthus occidentalis Hine Corvallis, VII and VIII; Roseburg, VIII-19 (Black) ; Medford, VIII-25; Bend, V-19; Hood River, VII-25 (Cole). This species was predatory on grasshoppers at Hood River. 1911, Ann. Ent. Soc. Amer., IV, p. 159. 352. Promachus princeps Will. Hood River, VII-2 (Cole). 260 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. 353. Tolmerus callidus Will. Described from Oregon and Washington. Bend, VI-10 (Thompson). 354. Asilus affinis Will. Hood River, VII-7 (Cole). J. S. Hine det. 355. Asilus auriannulatus Hine Mt. Jefferson, VIII-15 (Lovett); Parkdale, VI-12 (Cole). J. S. Hine det. 1909, Ann. Ent. Soc. Amer., II, p. 15% 356. Asilus californicus Hine Forest Grove, IX-27 (Cole). J. S. Hine det. 1909, Ann. Ent. Soc. Amer., II, p. 164. 357. Asilus mese Tucker Blitzen River, VII-6; Pamelia Lake, Mt. Jefferson, VII-19 (Bridwell). J. S. Hine det. 1907, Kans. Univ. Sci. Bull., I'V,.p:.92: 358. Asilus nitidifascies Hine Mt. Hood (H. K. Morrison). 1908, Can. Ent., XL, p. 202. 359. Asilus occidentalis Hine Hood River and Dee, VI-17 to VII-25 (Cole) ; Pamelia Lake, Mt. Jefferson, VII-16 (Bridwell) ; Mackenzie Ridge, VII-20; Cascade Mts., Marion Co. 1909, Ann. Ent. Soc. Amer., II, p. 147. 360. Asilus willistoni Hine Brownsville, [X-11. Hine det. This is the same as the preoccupied name angustifrons Will. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 261 Family DOLICHOPODID Fig. 23. Argyra nigripes Loew. These flies are small and usually shining green in color but occasionally black or yellow. The tarsi are long and often ornamented in the males; these and the curiously modi- fied claspers of the male genitalia furnish some of the best specific characters. The adults are slender and delicate and many are found about damp places in rank growth. They are predatory, darting over leaves or the surface of water in search of their prey. Little is known of the early stages of American species. The larve have been recorded as predaceous on other larve and also as feeding in plant tissues. A great majority are aquatic, such as Dolichopus, Hydrophorus, and Campsic- nemis. 361. Sciapus pilicornis (Aldr.) Hood River, VI-2 and 20. (Cole). M. C. Van Duzee det. 1904, Trans. Amer. Ent. Soc., XXX, p. 282 (Psilopo- dinus. ) : 362. Chrysotus choricus Wheeler Forest Grove, VI-2 (Cole). 363. Chrysotus discolor Loew Narrows, VII-1. December 14, 1921 262 CALIFORNIA ACADEMY OF SCIENCES (Proc. 4TH Sez. 364. Chrysotus longimanus Loew Hood River, VI-1 and VI-5 (Cole); Narrows, VII-1. 365. Campsicnemis claudicans Loew Forest Grove, V-5 to VI-6 and Hood River, IX-5 (Cole). 366. Argyra albiventris Loew Forest Grove, V-5 to V-20 (Cole). The species was described from Sitka, Alaska, many years ago and, accord- ing to M. C. Van Duzee, who confirms my determination, has not been recorded since. It differs from robusta John- son in several characters. 367. Argyra nigripes Loew Hood River, VI-8 and VI-24, two males (Cole). The type was a single male, damaged by mould, which was col- lected at Sitka, Alaska, by Sahlberg, the description, how- ever, is a very good one. The middle tibie are brownish yellow below, noticeably curved and enlarged near the middle and again near the tip; on the outside of the median enlarge- ment is a cluster of rather long bristles. The few bristles on the underside of the front metatarsi are quite long and very slender. The genitalia are blackish brown and as in other species of the genus posses good specific characters. 368. Sympycnus pugil Wheeler Hood River, IX-27 to X-11 (Cole). 369. Nothosympycnus vegetus Wheeler Hood River, V-9 (Cole). M. C. Van Duzee det. 370. Medeterus viduus Wheeler Hood River, VI-2 (Cole) ; Corvallis. 371. Hydrophorus innotatus Loew Recorded from Oregon by Aldrich. 372. Hydrophorus pensus Aldr. Forest Grove, VII-16 to IX-28 (Cole). A common species. 1911, Psyche, XVIII, p. 68. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 263 373. Hydrophorus philombrius Wheeler Hood River, VI-2 and Forest Grove, [X-27 (Cole). 374. Scellus monstrosus O. S. Series taken at Burns in June (Thompson). The speci- mens do not tally exactly with the original description, but Dr. Aldrich, who examined specimens of this and the fol- lowing species, is certain of the determination. The spoon- shaped appendages of the male genitalia are dark brown with a tuft of black hair. The appendage on the inner side of the base of the fore tibia ends in a short spine and has about seven short hairs on it. This species is very near avidus. 375. Scellus vigil O. S. Corvallis, V-24; Forest Grove in May and September (Cole). These specimens lack the long white pile on the hind femora which Aldrich mentions in his table of species (1907, Ent. News XVIII, p. 136). The species is very close to, if not identical with, filifer Loew. Only females were taken in September, although about seventy specimens were collected, and these were darker and larger than the earlier forms. All were collected on the ground, many by sweeping over grass. 376. Liancalus limbatus V. D. Mary’s Peak, VI, one specimen collected. 1917, Ent. News, XXVIII, p. 127. 377. Dolichopus aurifex V. D. Newport, VIII-13 (Aldrich). 1921, U.S. Nat. Mus., BullagilGy ips 225. 378. Dolichopus cavatus V. D. Hood River, VI (Cole); Corvallis. 1921, U. S. Nat. Mus., Bull. 116, p. 227. M. C. Van Duzee det. 379. Dolichopus celeripes V. D. Hood River, VIII-2 (Childs). 1921, U. S. Nat. Mus., Bull. 116, p. 244. Two specimens collected. 264 CALIFORNIA ACADEMY OF SCIENCES {Proc. 4TH Ser. 380. Dolichopus compactus V. D. Hood River, VII-4 (Cole). M. C. Van Duzee det. 1921, U, S. Nat. Mus., Bull. 116, p. 206. 381. Dolichopus convergens Aldr. Described from Oregon. 382. Dolichopus coquilletti Aldr. Forest Grove, VIII-29 (Creel); Hood River, VIII-9 (Aldrich). 383. Dolichopus crenatus (O. S.) Hood River, VII-5 to X-3 and Forest Grove, VI-3 (Cole) ; Corvallis, VI-15 (Lovett). Very common in some localities. 384. Dolichopus duplicatus Aldr. Hood River, IX-27 (Cole) ; Salem, VII-4 (Melander) ; Corvallis VII (Aldrich). 385. Dolichopus hastatus Loew Collected on Mt. Hood (Aldrich). 386. Dolichopus obcordatus Aldr. Hood River, VI to IX (Cole). Common in 1917. 387. Dolichopus occidentalis Aldr. Hood River, VI-30, and Salem, VII-4 (Melander). 388. Dolichopus paluster M. &. B. Hood River, VI-3 to IX-5 (Cole). M. C. Van Duzee det. 389. Dolichopus ramifer Loew Common at Hood River, June to October (Cole). 390. Dolichopus socius Loew Hood River, VI-3 and 4 (Cole). M. C. Van Duzee det. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 265 391. Dolichopus tenuipes Aldr. Hood River, [X-24 to X-11 (Cole); Corvallis, VI-1 (Cole). 392. Dolichopus variabilis Loew Hood River, VII-20 (Cole). 393. Tachytrechus olympiz (Aldr,) Hood River, VI-3 (Cole), M. C. Van Duzee det. 394. Tachytrechus sanus O. S. Hood River, VI-21 (Cole), M. C. Van Duzee det. 395. Pelastoneurus vagans Loew | Forest Grove, IX-27 and Hood River, X-26 (Cole), M. C. Van Duzee det. 396. Pelastoneurus occidentalis Wheeler Corvallis, VII-12 (Cole), M. C. Van Duzee det. Family EMPIDID: Fig. 24. Empis poplitea Loew. The family is a very large one and there is a great variety in form and wing venation. The prevailing colors are dull, most of them brown, gray, or black. The mouth parts are usually long and beak-like. The adults congregate in swarms under trees or near shrubs and about brooks and dance up and down in the air, hence the name ‘‘dance-flies.” They are predaceous, even cannibalistic, the female being ‘‘more deadly than the male.’’ Many of the flies visit flowers and some species have very interesting habits. They perform quaint courtship dances and carry little balloon like veils or 266 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. nets in some of their aerial maneuvers. The larve are found under leaves and decaying vegetable matter and are probably carniverous. Some species are aquatic or semi-aquatic. The species listed below were determined by Dr. A. L. Melander except where otherwise indicated. 397. Platypalpus equalis Loew Hood River, VI-3 (Cole). 398. Platypalpus crassifemoris Fitch Hood River, VI-3 (Cole). 399. Tachypeza inusta (Mel.) Viento, VII-1 (Melander). 400. Leptopeza disparilis Mel. Forest Grove, VI-2 (Cole). 401. Ocydromia glabricula (Fall.) Forest Grove, V-20 and VI-2 (Cole). 402. Empimorpha barbata (Loew) Hood River, V-7 and Forest Grove, III, IV and V (Cole). Very common in April and May, especially around the flowers of Oregon grape. 403. Empimorpha comantis Cog. Corvallis, I[V-30. 404. Empis aldrichii Mel. Rock Creek near Corvallis, VI-6 (Cole). 405. Empis canaster Mel. Reported from Oregon by Melander. 406. Empis poplitea Loew Hood River, V-5, and Forest Grove in May (Cole). Common, and often in swarms in the mating season. As in Empimorpha barbata the males carry their prey near the females as a lure. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 267 407. Hilara atra Loew Forest Grove, V-20 (Cole), Cole det. 408. Brachystoma occidentalis Mel. Forest Grove, VI-13 (Rockwood). Cole det. 409. Rhamphomyia amplicella Coq. Corvallis, 1V; Forest Grove, I1V-12 (Cole). Cole det. 410. Rhamphomyia corvina Loew Forest Grove, IV-4 (Cole). Cole det. 411. Rhamphomyia curvipes Coq. Corvallis, VI-3. 412. Rhamphomyia nigricans Loew Forest Grove, III-20 (Cole). Cole det. 413. Rhamphomyia sudigeronis Coq. Hood River, VI-8 (Cole). 414. Anthalia stigmalis Coq. Corvallis, VI-2 (Cole). 268 CALIFORNIA ACADEMY OF SCIENCES (Proc, 4TH Sez. Family PLATYPEZIDZ Fig. 25. Calotarsa insignis Aldr. a. Drawn from male. In the “‘flat-footed flies” the posterior tarsi are broad and flattened, especially in the males. The wings are propor- tionately large. They are quick little flies and are often seen darting around on leaves, active in the shade and at times seen hovering over foliage about sundown. The larve live in mushrooms and other fungi. 415. Agathomyia lutea Cole Parkdale, IX-5 (Cole). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 238. 416. Platypeza abscondita Snow Hood River, VI-8 (Cole). 417. Platypeza cinerea Snow Hood River, X-30 (Cole). Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 269 418. Platypeza polyporus Willard Large series from Corvallis (Moznette). 1914, Psyche, XXI, p. 167. 419. Calotarsa insignis Aldr. Hood River, X-11 (Cole). Thirty-five females of this remarkable fly were taken, but no males were seen. Accord- ing to Aldrich this is the first record since the discovery of the species at Stanford University, California. Family LONCHOPTERIDA Fig. 26. Lonchoptera lutea Panzer. Very small flies with pointed wings, commonly known as “spear-winged flies.” When at rest the wings are folded flat, one over the other, on the abdomen. The venation alone will distinguish them from all other families and sug- gests that of the Psychodide. They are found in grass along streams and the individuals are quite common. There is only one genus in the family and very few species, three occurring in North America. Little is known of their habits. The larvz are found on the ground under vegetable material. 270 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 420. Lonchoptera lutea Panz. Common everywhere. Hood River, VI-19 to X-26 (Cole). Lundbeck in ‘‘Diptera Danica” said that only six males of furcata Fallén were known and in this species the males are about as rare. The females undoubtedly reproduce parthenogenetically. Family PHORID Fig. 27. Che@toneurophora variabilis Brues. Small, usually dark colored, flies with large, broad wings and a peculiar venation. The thorax is large and the head small. They are commonly seen running about on leaves and on windows in houses; occasionally they swarm in the air. The larval habits are remarkably varied; some live in decaying animal and vegetable matter and others are true entoparasites. Vor. XIJ COLE AND LOVETT—LIST OF OREGON DIPTERA 271 421. Phora velutina Meig. Hood River, V-20 to IX-5 and Forest Grove, VI-5 (Cole). 422. Hypocera flavimana Meig. Forest Grove, III-28 (Cole), Malloch det. Previously recorded only from the east. 423. Apiocheta borealis Mall. Forest Grove, IV-4, 10 (Cole). 1912, Proc. U.S. Nat. Mus., XLIII, p. 488. Recorded from B. C. 424. Apiocheta rufipes (Meig.) Forest Grove, III-30 to V-14 (Cole). 425. Conicera aldrichii Brues Forest Grove, III-30 to IV-20 (Cole). 426. Chztoneurophora!’ spinipes Coq. Forest Grove, IV-4 (Cole); Corvallis, I-26 (Chamber- lin). 17 y912, Proc. U. S. Nat. Mus., XLIII, p. 422. 427. Chztoneurophora variabilis Brues Series of specimens collected at Corvallis, with no other data. 1908, Jl. N. Y. Ent. Soc. XVI, p. 199. 428. Trupheoneura!® fratercula Brues Hood River, X-30 (Cole). Doubtfully placed here, the third vein thickened more as in pachyneura Loew. 18 y909, Journ. Nat. Hist. Soc. Glasgow, I, p. 27. 272 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. Family PIPUNCULID Fig, 28. Pipunculus atlanticus Hough. Small flies with rather large heads composed almost en- tirely of the compound eyes. The wings are long and the venation like that of the Conopide. The body is usually almost bare of pile. The adults can be taken by sweeping plants and grass. Some are known to be parasitic in Jassids in the larval stages. 429. Chalarus spurius (Fall.) Hood River, VII-28 (Cole). 430. Pipunculus!9 atlanticus Hough Hood River, VI-6 to VII-28 (Cole). These specimens cannot be separated from the eastern species. They are the “slightly smaller” form with blackish antenne mentioned by Cresson in his paper on this group. 19Tn this large genus there are evidently many undescribed species in the west. There is not sufficient material at present to make sure of some of the species collected in Oregon; at least six forms were taken at Hood River. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 273 431. Pipunculus confraternus Banks Hood River, IX-29 (Cole). One female taken. 1910, Trans. Amer. Ent. Soc., XXXVI, p. 285. 432. Pipunculus proxima Cress. Hood River, VI-3 (Cole). 1910, Trans. Amer. Ent. Soc., XXXVI, p. 318. 433. Pipunculus similis Hough Hood River, VI-4 (Cole). Family SYRPHID Fig. 29. Sphegina punctata Cole, n. sp. Drawing of holotype. The adults are usually of moderate size and bright colors, black and yellow predominating. One of the distinguishing characteristics of the family is a thickening of the wing membrane, appearing as a spurious longitudinal vein. Over 700 described species occur in North America. The more common forms of the genus Syrphus and its near relatives frequent fields and gardens, hovering here and there about the blossoms. Mimicry is well developed among the less typical forms, some are almost bare and mimic wasps, others are hairy and mimic bees. The adults feed 274 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. upon the pollen and nectar of flowers and are of no economic importance. The larve are typically slug-like in appearance. As a group they are considered beneficial and feed upon plant lice. As with the adults there is great variation in appearance among the less typical forms. In the genus Microdon the larve resemble molluscs and live in the nests of ants. Others are found in the nests of bumblebees and wasps. A large group, termed rat-tailed larve, have a slender posterior pro- longation with terminal spiracles. These forms may live in stale pools of water or tunnel deeply into the sap or decay of trees. A few forms are injurious, tunneling into live bulbs and woody plants. These include such forms as the narcissus bulb maggot, Merodon equestris; the onion maggot, Eumerus strigatus; and Chilosia alaskensis, causing black check in Western Hemlock. 434. Microdon cothurnatus Bigot Hood River, V-19 to 21 (Cole). Found mostly in an ant’s nest under the bark of an old pine log, ten adults being taken and a number of pupz. There is reason to believe that species of Microdon return to the old nest year after year and this certainly appeared to be the case here, as some of the old pupa cases had been there three or four years. The type of this species was taken on Mt. Hood. 435. Microdon marmoratus Bigot Hood River, VI-14 (Cole); Mosier, VI-16 (Cole and Childs). 436. Microdon piperi Knab Corvallis; Hood River, VI (Cole) ; Mt. Jefferson, VIII. Listed from Oregon by Williston as tristis Loew. On March 10, 1915, Childs collected larve in a colony of ants, under heavy bark of an old fir stump. 437. Chrysotoxum derivatum Walk. Mt. Jefferson; Mary’s Peak, VI-VIII (Lovett). Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 275 438. Chrysotoxum ypsilon Will. Mary’s Peak, VII-14 (Bridwell) ; Lakeview, VIII-18 (Thompson). 439. Chrysogaster bellula Will. Mt. Jefferson, VIII (Bridwell). 440. Chrysogaster lata Loew Williston records from Oregon. 441. Chrysogaster parva Shannon Hood River, V-15 to VI-6 (Cole). 1916, Proc. Ent. Soc. Wash., XVIII, p. 104. 442. Chrysogaster pulchella Will. Hood River, VI-17 (Cole). 443. Chrysogaster sinuosa Bigot Hood River, VI-3 (Cole) ; Forest Grove, V-11 (Lovett). 444. Chrysogaster stigmata Will. Pamelia Lake, VII-24 (Bridwell) ; Hood River, VI-3 and Forest Grove, IV-12 (Cole). 445. Pipiza?° femoralis Loew Hood River, VII-5 (Cole). 446. Pipiza macrofemoralis Curran MS. Hood River, VI-8 (Cole). having few outstanding characters sufficiently constant to be of service in establishing genera. Particularly in the females the characters for differen- tiation are more imaginary than real. In collecting where material in this group is plentiful, it is frequently possible to obtain individual females, which might provisionally be placed in each of the four genera, associating with males specifically of one form. It is our belief that a closer study will show this group to be in a transitional stage because of changes in food habits of the larve; the adults still mating more or less indiscriminately. Mr. C. Howard Curran of Ontario, Canada, who has undertaken the very laudable task of straightening out this group, has kindly determined our Oregon material and his classification is used in cataloguing these forms. Mr. Curran’s paper will appear in the succeeding number of these Proceedings. 276 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 447. Pipiza oregona Lovett Hood River, V-8 (Cole). 1919, Proc. Cal. Acad. Sci., Ser. 4, [X, p. 246. 448. Heringia californica Davidson Hood River, V-25 to VI-21 (Cole). 449. Heringia cumuta Curran MS. Hood River, V (Cole). 450. Cnemodon auripleura Curran MS. Hood River, VI-16 and Forest Grove, V (Cole); Corvallis, VI-14 (Lovett). 451. Cnemodon corvallis Curran MS. Hood River, VI-16 and Forest Grove, IX-30 (Cole). 452. Cnemodon lovetti Curran MS. Horse Lake, 6,000 ft., VII (Bridwell). 453. Cnemodon pisticoides Will. Mackenzie R. ridge, in Cascades, 6,000 ft., VIII; Mary’s Peak. 454. Cnemodon placida Curran MS. Forest Grove, V-25 (Cole). 455. Cnemodon rita Curran MS. Rock Creek, VII-14 (Lovett). 456. Cnemodon sinuosa Curran MS. Forest Grove, V-25 (Cole). 457. Paragus angustifrons Loew Corvallis (Bridwell); Forest Grove (Cole); Hood River, VI to VII (Cole). 458. Paragus bicolor (Fabr.) Corvallis, V to VI (Lovett) ; Forest Grove, V (Cole). Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 277 459. Paragus tibialis (Fall.) Forest Grove, VII and Hood River, V-16 (Cole). 460. Chilosia aldrichi Hunter Mary’s Peak, VI-14 (Lovett). Two male specimens, placed here provisionally. The abdomen is not ‘‘everywhere shining’’, but with subopaque cross band on hind margins of second and third segments, not reaching lateral margins and produced slightly forward in the center. Pile of disc short golden, longer golden on the margins. Scattering elongate bristle-like hairs on postalar callosities and on mar- gin of scutellum. Otherwise fits description. 461. Chilosia baroni Will. Mary’s Peak, V-9 (Currey). 462. Chilosia borealis Coq. Corvallis, IV-15. Doubtfully assigned here. Fits descrip- tion except pile of eyes white. Length 8.5 to 9 mm. 463. Chilosia chalybescens Will. Corvallis (Lovett). 464. Chilosia chintimini Lovett, new species. Eyes pilose, arista nearly bare; color black throughout; face, legs, halteres and pile black; wings dark smoky, veins black. Length 11 mm. Male: Face black shining with fairly abundant, moder- ately elongate, pile between tubercle and groove; indistinct, short, golden pile along groove. Face not produced, but slightly concave from antenne to prominent tubercle, deeply concave between tubercle and prominent oral margin. Cheeks black, subshining, with golden pile. Frontal triangle strongly swollen, a deep median impression, pile coarse, elongate, black; vertical triangle small, black; ocelli brown; pile coarse, heavy, elongate, black. Antenne small and brown; first two segments shining dark mahogany, third rounded, thin, coffee color. Arista black, longer than antenne, thickened and briefly pilose on basal third. Eyes evenly and moderately elongate brown-pilose. December 14, 1921 278 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Sea. Thorax and scutellum shining black, scutellum with a hint of mahogany brown. Pile throughout elongate, black, coarser and shorter on pleura, spines everywhere absent. On humeral angles with small, half-concealed, areas of whitish pubescence. Abdomen opaque black on disc, subshining along margins, pile moderately elongate, black, but with shorter, incon- spicuous, brown pile in rows across disc of first three seg- ments. Legs black with black pile, briefly short golden pilose on under-surface of tibie and tarsi. Wings dark, smoky throughout; veins black. Tegule light with light yellow pile; halteres deep brownish black, a hint of gray on knob. Holotype, male, No. 838, Mus. Calif. Acad. Sci. A. L. Lovett, collector, June 19, 1919. Paratype, same data, in collection of A. L. Lovett. Type locality, Mary’s Peak, Oregon. Near ferruginea and lasiophthalma in size and length of pile. The uniformly attractive black color readily sep- arates it. 465. Chilosia ferruginea Lovett Corvallis, [V-14 (Chamberlin); Mary’s Peak, III-30 (Lovett). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 238. 466. Chilosia hoodiana Bigot Hood River, V-8 (Cole). 467. Chilosia levis Bigot Hood River, V-20 (Cole); Mary’s Peak, VI-26; Leba- non, V-18 (Lovett). 468. _ Chilosia lasiophthalma Will. Corvallis, [V (Lovett). 469. Chilosia lugubris Will. Hood River V and VI (Cole). Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 279 470. Chilosia nigripennis Will. Mt. Jefferson, VII-15 (Bridwell). Bigot also reported it from Mt. Hood as Cartosyrphus infumatus. 471. Chilosia nigrovittata Lovett Corvallis, [V-22 (Neilson). 1919, Proc. Cal. Acad. Sci., Ser. 4, [X, p. 239. 472. Chilosia occidentalis Will. Mary’s Peak III-30 (Black). 473. Chilosia nigro-ccerulea Lovett New name for pacifica Lovett. Lava Lake, VII-15 (Lovett) ; Mt. Jefferson, VII (Bridwell) ; Corvallis, V-17. 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 240. 474. Chilosia pallipes Loew Mt. Jefferson, Horse Lake, VII-25 (Bridwell) ; Mt. Jef- ferson, VIII-1; Mary’s Peak, V to VII (Lovett). Occurs at lower altitudes in scattering numbers. A very common form in higher altitudes in midsummer in blossoms of Helle- bore. 475. Chilosia parva Will. Described from Oregon. 476. Chilosia petulca Will. Mary’s Peak, VI (Lovett). 477. Chilosia signatiseta Hunter Hood River, V-5 (Cole). 478. Chilosia sororcula Will. Mary’s Peak, V-9 (Currey). 479. Chilosia versipellis Will. Hood River, V-19 (Cole). 480. Chilosia willistonii Snow Corvallis (Bridwell) ; Hood River, V-8 (Cole). 280 CALIFORNIA ACADEMY OF SCIENCES (Proc, 4TH SER. 481. Myiolepta bella Will. Mt. Jefferson; Mary’s Peak; Horse Lake, 3,000 to 6,000 feet, VI-VIII (Lovett). Oregon is type locality. 482. Myiolepta varipes Loew Corvallis, V-26. Bigot described it from Mt. Hood as lunulata. 483. Pyrophena granditarsus Forst. Hood River, V and VI (Cole). Common in marshy lands near Hood River, flying about plants of Equisetum. 484. Platychirus zratus Coq. Mt. Jefferson, VIII-1 (Lovett). Doubtfully referred here; apparently agrees, except that legs are decidedly lighter in color and pile on face not especially heavy. 485. Platychirus frontosus Lovett Corvallis, V-5 (Nichols) ; Mary’s Peak, III-19 (Lovett). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 247. 486. Platychirus hyperboreus (Staeg.) Corvallis; Alsea Valley, 1V to VII (Lovett). 487. Platychirus peltatus (Meig.) Hood River and Parkdale, V and VI (Cole). 488. Platychirus quadratus (Say) Hood River (Cole) ; Mary’s Peak, III-30 (Black). Com- mon at Hood River. 489. Melanostoma angustatum Will. Pamelia Lake, 3,000 ft., VII-27 (Bridwell). 490. Melanostoma ambiguum ( Fall.) Hood River, VII-25 (Cole). 491. Melanostoma concinnum Snow Philomath, V (Lovett). Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 281 492. Melanostoma ceerulescens Will. Mary’s Peak; Mt. Jefferson (Lovett). 493. Melanostoma dubium Zett. Rock Creek, III-30; Duffy’s Prairie, VII-26 (Lovett). Doubtfully assigned here. 494. Melanostoma mellinum (Linn.) Common in the Willamette and Hood River Valleys. 495. Melanostoma obscurum (Say) Mary’s Peak, VIII (Lovett). 496. Melanostoma stegnum (Say) Common, V to VIII. 497. Leucozona lucorum (Linn.) Mary’s Peak, VIII (Lovett). 498. Eupeodes volucris O. S. Common, V to VIII. 499. Didea fasciata Macq. Common, VII to VIII, at altitude of 3,000 to 6,000 feet. 500. Didea laxa O. S. Common, IV to VIII. Found at low altitudes during early summer and late fall, but most common at altitudes of 2,500 to 6,000 feet in forests near clearings, hovering in shafts of sunlight that strike down through little open glades. 501. Didea pacifica Lovett Parkdale, VII-12 (Cole). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 246. 502. Lasiophthicus pyrastri (Linn.) Common. 503. Lasiophthicus pyrastri unicolor Curtis In the early summer of 1914, the vetch aphis, Macrosi- 282 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. phum pisi, was unusually abundant, destroying great areas of vetch during June. One of the commonest beneficial in- sects preying on the aphids was the larve of L. pyrastri. Great numbers of these larve were collected to study possi- ble parasites. About 3 per cent parasitism was observed. Of the adults emerging about 32 per cent were the melanic forms with black abdomens. A few specimens of unicolor were collected about aphids on “‘snow balls” in 1915. None has since been observed or collected in the valley, which would tend to substantiate Verral’s report of their periodical appearance. Iwo females, one collected 1907 (Bridwell) and one VIII-’17 (Lovett) in the Cascades, alt. 6,500- 7,000 feet, are smaller, but apparently belong here. In these two the interrupted cross band on the second abdominal seg- ment persist as two elongate dots. 504. .Syrphus abbreviatus (Zett.) Corvallis, IV; Mary’s Peak, VI (Lovett). 505. Syrphus americanus Wied. Common. This species and opinator are two of the most common and generally beneficial forms of Syrphide feeding on aphids in Oregon. L. pyrastri proves the greatest feeder of all on Aphis carbicolor and Macrosiphum pisi; but on the basis of species attacked and general abundance opinator ranks first with americana a close second. 506. Syrphus arcuatus Fall. Common, V-VIII. More abundant in higher altitudes 2,500 to 5,800 feet. 507. Syrphus bimaculatus Lovett Mary’s Peak, VI-15 (Lovett); Mt. Jefferson, VI (Brid- well). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 244. 508. Syrphus diversipes Macq. Pamelia Lake; Mary’s Peak, VII-VIII (Gentner) ; Lava Lake, VII-25 (Lovett). 509. Syrphus grossularie Meig. Parkdale, VI-18 (Cole) ; Corvallis (Lovett). Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 283 510. Syrphus intrudens O. S. Mt. Jefferson; Mary’s Peak (Bridwell and Lovett) ; Hood River, V-20 (Cole). Fairly common in higher alti- tudes during August. 511. Syrphus maculifrons Bigot Described from Oregon. 512. Syrphus mentalis Will. Tillamook, III-26 (Burrill); Rock Creek, III-20 (Lovett). Type from Washington Territory. A rare species. Iwo males which I am satisfied belong here vary from the female in certain minor respects and the following notes are appended. Male. Similar in general appearance and markings to the female, everywhere tending to be darker and with more elongate pile. Frontal triangle swollen, pile black, coarser and longer than in female. Antenne darker, but, as in female, set in yellow field. Dark facial stripe much broader, the yellow on sides narrow and obscured by gray pollen. Pile on face elongate, black; cheeks black, narrowly yel- lowish below oral margin. Abdominal cross bands similar in appearance to female, first and third do not reach lateral margins though this is evidently a variable character. Legs black, briefly brown at union of femora and tibie. Pile black, elongate. 513. Syrphus opinator O. S. Common. See note under americana. 514. Syrphus pacificus Lovett Corvallis (Lovett) ; Hood River, V (Cole). 1919, Proc. Cal. Acad. of Sci., Ser. 4, IX, p. 245. 515. Syrphus perplexus Osburn Burns, V (Thompson) ; Philomath, V; Mary’s Peak, VIII (Lovett). 1910, Jl. N. Y. Ent. Soc., XVIII, p. 55. 516. Syrphus protritus O. S. Grant Co., one specimen, no other data. 284 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Sex. 517. Syrphus ribesii (Linn.) Common in Willamette and Hood River Valleys. 518. Syrphus ruficauda Snow Dee, VI-17 (Cole). 519. Syrphus sodalis Will. Corvallis (Lovett). 520. Syrphus torvus O. S. Common in many parts of Oregon. 521. Syrphus umbellatarum (Fabr.) Nipeeeenee, IX-X (Moznette) ; Mary’s Peak; Mt. Jeffer- son, VII and VIII (Lovett). 522. Syrphus velutinus Will. Described from Mt. Hood. 523. Allograpta fracta O. S. Common. 524. Allograpta obliqua (Say) Common. 525. Xanthogramma zqualis (Loew) Dee, VI-17 (Cole). 526. Mesogramma boscii (Macq.) Forest Grove, V-5 and Hood River, VII-20 (Cole). 527. Mosogramma gemminata (Say) Common. 528. Mesogramma marginata (Say) Common. 529. Sphzrophoria cylindrica (Say) Common. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 285 530. Sphzrophoria melanosa Will. Common, but not as abundant as cylindrica. 531. Sphzrophoria micrura O. S. Mt. Jefferson, VII (Bridwell) ; Corvallis, IX (Lovett). 532. Sphzrophoria sulphuripes (Thoms.) Common. 533. Sphegina infuscata Loew Corvallis, IV-28 and Hood River, V-20 to VI-2 (Cole) ; Tillamook, IIJ-26 (Burrill). 534. Sphegina lobata Loew Oregon is type locality. 535. Sphegina punctata Cole, new species General color yellowish, the hind femora with a broad dark band and the tip of the abdomen more or less blackish. Apical margin of the wing infuscated; a dark spot outside the anterior cross vein. -Male: Frons blackish gray, gray pollinose except for a narrow line, and yellowish at the base of the antenne; rather long and narrow, of about equal width, widening a little from the ocelli back to the occiput; antennez pale brownish yellow; the arista pale brown or yellow; cheeks and palpi yellow, the occiput blackish, gray pollinose. Thorax, pleura, and scutellum orange-yellow, the color varied a little; thorax often reddish; thorax and pleura with short, yellow pile. Hlalteres pale yellow. Abdomen yel- lowish marked with blackish, the first segment short, second long and slender, third and fourth broader; a dark spot on the posterior margin of second segment, the third and fourth darkened above and below. Genitalia blackish, marked with yellow, gray pollinose. The first abdominal segment may be brown and all of the fourth blackish. Legs yellow, the front two pairs with the last two tarsal joints dark brown; hind femora with a broad, blackish brown ring; tibia with two dark rings, one near the apex and a 286 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. fainter one near the middle; hind metatarsi dark brown except the tip; last two joints of the tarsi blackish; spines under the hind femora strong and black; base of hind coxe darkened in some specimens. Wings smoky hyaline with a very distinct blackish spot just outside the anterior cross- vein and a small spot in the submarginal near the tip of the wing (see fig. 29) ; apical half of wing smoky brown around the border, the stigma dark; the spot near the anterior cross-vein varies in size. Female: Markings almost as in the male. First abdomi- nal segment and posterior part of second darkened, the rest a reddish color; ring on the hind femur paler; base of abdo- men narrow but suddenly widening, the third and fourth seg- ments much wider than in male. Frons yellow and wider than in male. Holotype, male, No. 839, Mus. Calif. Acad. Sci., F. R. Cole, collector, June 4, 1917; allotype, female, No. 840, Mus. Calif. Acad. Sci., F. R. Cole, collector, Hood River, Oregon, May 25, 1917. Type locality, Hood River, Oregon. This species is quite distinct from other described forms, especially in the wing markings. As in the other species the vein closing the first posterior cell has a characteristic angle. 536. Sphegina rufiventris Loew Mt. Jefferson, VII-15 (Bridwell) ; Mary’s Peak (Lovett) ; Hood River, V-20 (Cole). The two commonest species at Hood River and vicinity are undescribed forms and will be described in a later paper. 537. Neoascia globosa (Walk.) Mt. Hood (Bigot); Corvallis (Lovett). Common in April and May in low marshy areas and about margins of small lakes. “Large series taken at Hood River in May” (Cole). 538. Brachyopa gigas Lovett Corvallis, 1V (Thompson). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 243. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 287 539. Brachyopa media Will. Hood River, V-17 (Cole) ; Corvallis, V-15 (Lovett). 540. Brachyopa notata O. S. Corvallis (Preston) ; Hood River, VI-6 (Cole). 541. Volucella evecta Walk. Corvallis, V and VI (Lovett and Black) ; Forest Grove, IV-31 (Rockwood). Fairly common. 542. Volucella tau Bigot Corvallis, V-10 (Lovett). 543. Sericomyia chalcopyga Loew One of the commonest of midsummer forms in higher altitudes, 2,500 to 6,000 feet. 544. Arctophila flagrans O. S. Wallowa Co., VI (Ault). 545. Arctophila harveyii Osburn Nine specimens, Mt. Jefferson, 5,800 ft., VIII (Lovett). Would make the following additions to description to fit our specimens: Margin of fourth segment of abdomen of female not reddish, scutellum of male below translucent reddish, disc of abdomen sometimes with distinct, dull reddish tinge. 1906, Can. Ent. XXXVIII, p. 1. 546. Pyritis kincaidii (Coq.) Corvallis, V (Lovett) ; Forest Grove, V-3 (Cole). 547. Pyritis montigena Hunter Baker, IV (Entermille). 548. Eristalis flavipes Walk. Moderately common, a very diversified species. 549. Eristalis latifrons Loew Corvallis, V-27 (Lovett). 288 CALIFORNIA ACADEMY OF SCIENCES (Proc. 4TH SER. 550. Eristalis meigenii Wied. A widespread species occurring from New England to Alaska. 551. Eristalis occidentalis Will. Common. 552. Eristalis temporalis Thoms. Common. 553. Eristalis tenax (Linn.) Common. 554. Tropidia quadrata (Say) Hood River (Cole); Corvallis (Lovett). Fairly com- mon. 555. Helophilus latifrons Loew Corvallis and Hood River, V and VI (Cole and Lovett). Williston in his Synopsis says, ‘‘Mass. to Cal. and Wash.” 556. Helophilus polygrammus Loew Osten Sacken had specimens from Oregon collected by H. Edwards. 557. Helophilus similis Macq. Fairly common. 558. Asemosyrphus mexicanus Macq. Reported from Oregon by Osten Sacken. It is a fairly common species in higher altitudes and scatteringly on plains in midsummer. 559. Mallota sackeni Will. Corvallis, V and VI; Mosier, VI-14 (Cole). 560. Syritta pipiens (Linn.) “Everywhere and at all times abundant from spring to autumn.” — Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 289 561. Xylota analis Will. Detroit, VII (Bridwell) ; Mt. Jefferson, VIII (Lovett). 562. Xylota barbata Loew Hood River, V and VI (Cole) ; Mt. Jefferson; Corvallis, V to VIII (Lovett). 563. Xylota ejuncida Say Hood River, V and VI (Cole). 564. Xylota flavitibia Bigot Hood River, X-3 (Cole). 565. Xylota fraudulosa Loew Hood River and Corvallis, V to VII (Cole and Lovett). 566. Xylota nemorum (Fabr.) Hood River and Forest Grove, V (Cole); Corvallis, 1X-18. 567. Xylota obscura Loew Williston lists from Oregon. 568. Xylota pigra (Fabr.) Horse Lake, VII-25 (Bridwell). 569. Xylota scutellarmata Lovett Hood River, V-17 (Cole). 1919, Proc. Cal. Acad. Sci., Ser, 4, [XS p)/241. 570. Xylota stigmatipennis Lovett Hood River, VI (Cole). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 242. 571. Xylota subfasciata Loew Corvallis, V-15 (Lovett). Bred from larve collected in decayed heart of fir, Pseudotsuga taxifolia. 572. Eumerus strigatus Fall. Corvallis, V; Hood River, VII-20, breeding in onions. (Cole and Childs). 290 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. 573. Chrysochlamys creesus O. S. Corvallis, V; Mt. Jefferson, VIII (Lovett and Smith) ; Hood River, V-24 to VI-9 (Cole). 574. Brachypalpus parvus Will. Corvallis; Hood River VI (Cole). Female: Face and cheeks black, heavily white pollinose. Cheeks with broad shining stripe from oral margin to base of eye. Front above, vertex and a triangle on antennal prominence white pollinose; on the sides below, shining. Cheeks, just below antennz, front, and vertex golden pol- linose. Abdomen opaque black with areas of opaque blue-gray pollen as follows: First segment, except hind margin, quad- rangles on second segment reaching neither front, posterior, nor lateral margins; similar areas on third reaching anterior margin and brief crescents on anterior margin of fourth. Otherwise as male. 575. Brachypalpus pigra Lovett Mt. Jefferson, VIII-15 (Lovett). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 241. 576. Caliprobola pulcher ( Will.) Mt. Jefferson, Mary’s Peak, Hood River and Corvallis, VII to VIII (Bridwell, Cole, Lovett and Childs). Found commonly in midsummer on flowers in clearings in higher altitudes, 4,800 to 6,000 feet where it frequents edges of clearings, resting on low shrubs; or on bark of trees in sun- light at lower altitudes. It has been collected at Corvallis in October, resting on a window. 577. Caliprobola crawfordi Shannon Hood River, Mary’s Peak and Corvallis (Cole, Lovett, Chamberlin). Fairly common in unusual situations. Bred adult from larve collected in decayed heartwood of Douglas Fir (Lovett). Not uncommon near Forest Reserve west of Parkdale. Three specimens collected at Hood River along railroad track, crawling under old ties. Those at Parkdale were flying around scarred or burned trees (Cole Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 291 and Childs). 1916, Proc. Ent. Soc. Wash., XVIII, p. 112. The median cross bands on third and fourth segments often are interrupted; occasionally anterior cross band on fourth entirely concealed under posterior margin of third segment and median band reduced to two narrow elongate spots. 578. Crioprora alopex (O. S.) Forest Grove, III-20 (Cole); Tillamook, III-26 (Bur- rill) ; Mary’s Peak, III-30 (Lovett). 579. Crioprora cyanella (O. S.) Corvallis, V-15 (Black). 580. Crioprora femorata Will. Dee and Hood River, V and VI (Cole); Mary’s Peak, VI (Lovett). 581. Cynorhina armillata (O. S.) Mary’s Peak, VI-15; Lebanon, V-18 (Lovett). 582. Cynorhina humeralis (Will.) Corvallis, V (Summers) ; Hood River, VI (Cole). 583. Cynorhina scitula (Will.) The most common midsummer species on blossoms in higher altitudes, 3,000 to 6,000 feet, outranking even Sericomyia chalcopyga (Lovett). 584. Pocota grandis (Will.) Mt. Jefferson, VII and VIII (Bridwell and Lovett). A large, showy creature, occurring in blossoms of yarrow at an altitude of 4,000 to 6,000 feet. Found generally just at the edge of the forest and in small sunny clearings. Its flying period is from 9 to 11 A. M., and it is seldom seen later. Considering its size, it is swift in flight, alighting but seldom and then for a brief time. 585. Criorhina grandis Lovett, new species Length 15 to 17 mm. A conspicuous black and yellow species. Black with elongate black pile, across thorax in 292 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. front of wings and on 4th segment of abdomen golden yellow pilose. Superficially resembles Pocota grandis. Female: Face and front dull black; tubercle and vertex bare of pollen, subshining, front and face on the sides heavily brown pollinose; cheeks shining black; pile on sides of face golden, coarser, more elongate and mixed brown and black from antennal prominence to eye margin; front, vertex and cheeks black pilose, elongate on vertex and cheeks, on latter mixed with brown. Antenne brown, first and second segments deep shining mahogany, sub-equal in length, third segment dull brownish black, lighter basally, the segment thick, about one-half broader than long, not produced mater- ially at any angle, arista deep brownish black. Proboscis produced, heavy and blunt. Thorax and scutellum black, subshining. Pile elongate, dense, yellow in front of wings on dorsum and pleura, black behind wings and on scutellum. Abdomen black subshining, fourth segment with obscure metallic reflections; pile elongate black; on apical two-thirds of fourth segment yellow, on fifth segment elongate, coarse, mixed brown and black. Legs black, knees briefly reddish brown; pile on femora elongate black, mixed with brown on under surface of hind femur; tibia and tarsi with short golden pile; at base of hind coxa a heavy tuft of coarse golden, brown and black pile. Wings subhyaline, veins black with extended brownish margins. Holotype, female, No. 841, Mus. Calif. Acad. Sci.; A. B. Black, collector, June, 1919. A second female, paratype, was collected at the same time and place by A. L. Lovett and is in his collection. Type locality, Mary’s Peak, Oregon. This species is very near coquilletti Will. and may prove to be a synonym. The extreme disparity in size and appar- ent facial and antennal differences are all that seem specific. No opportunity has been afforded to compare the two. 586. Criorhina kincaidi Coq. Horse Mt., VII; Mary’s Peak, V to VII (Lovett). Vor. XIj COLE AND LOVETT—LIST OF OREGON DIPTERA 293 587. Criorhina luna Lovett Alsea; Tillamook, III-26 (Burrill) ; Mary’s Peak, V and VI (Lovett). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p2tg: 588. Criorhina nigripes (Will.) Corvallis; Forest Grove, [X-14 and Hood River, IV and V (Cole). A specimen believed to be a male labelled “‘Stan- ford Univ., Cal., Feb. 28, 1909,” has certain markings varying from the female as follows: Face similar, tubercle more prominent; fairly abundant elongate yellow pile from base of antennal prominence out to and extending down along eye margin. Above antennal prominence with a trans- verse appressed line; vertical triangle opaque. Thorax and abdominal markings similar to female except fifth segment with short black pile. Legs black with elongate light yel- low pile. Tarsal claws yellow at base. 589. Criorhina quadriboscis Lovett Mt. Jefferson, [V-16 (Hartley). 1919, Proc. Cal. Acad. Scies Sen 4, xs) p: 2510: 590. Criorhina tricolor Coq. Mt. Jefferson, VII-VIII (Bridwell) ; Hood River, VI-17 (Cole). Redescribed in 1919, Proc. Cal. Acad. Sci., Ser. 4, PXGip 25: 591 Spilomyia interrupta Will. Corvallis, IX (Bridwell); Hood River, VIII-24 (Childs) . 592. Sphecomyia brevicornis O. S. Hood River, VI-6 (Cole). One pair taken. 593. Sphecomyia nasica Osburn Mt. Jefferson, VII-VIII (Bridwell, Lovett). 594. Sphecomyia pattoni Will. Mt. Jefferson, VII-VIII (Bridwell, Lovett). These last two species as I have observed them in August are rare, found entirely in the forenoon, occurring just at the edge of clearings and flying swiftly, close to the ground, resting December 14, 1921 294 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. occasionally in low growing shrubbery at the very edge of dense forests. 595. Ceria tridens Loew Pendleton, VIII-18 (Black, Thompson). Family CONOPID Fig. 30. Dalmannia pacifica Banks. These are flower flies and are not usually very conspic- uous. Some of the species resemble slender wasps while others are more thick-set. The term ‘“‘thick headed flies” is sometimes applied to them, this being no reflection on their mentality. Not much is known of the early stages but cer- tain species have been bred from adult Hymenoptera, and, according to Dr. Williston, from Orthoptera. The flies evidently deposit their eggs on the bodies of some bees in flight and have been observed several times attempting to do this. 596. Physocephala affinis (Will.) Hood River, VII-7 to I[X-4, and La Grande, IX-20 (Cole) ; Vale, VIII-15. 597. Physocephala burgessi (Will.) Big Lake, VII-20 (Bridwell). Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 295 598. Physocephala marginata (Say) Albany, VII-10; Corvallis, VI-5. 599. Zodion fulvifrons Say Hood River, VI-16 (Cole) ; Mackenzie Ridge, alt. 6,000 ft., VIII-1. This species has been bred from the common honey bee. 600. Zodion pygmzum Will. Hood River, VI-19 (Cole). 601. Zodion occidentale Banks Hood River, VI-3 (Cole) ; Mary’s River, V-2; Corvallis, V-13. 1916, Ann. Ent. Soc. Amer., IX, p. 194. 602. Zodion triste Bigot Corvallis, V-13 (Lovett). 603. Dalmannia pacifica Banks Mosier, VI-14 (Cole and Childs) ; Corvallis, VI-6, 1899, the type specimen. 1916, Ann. Ent. Soc. Amer., IX, p. 199. A number of freshly emerged specimens were taken at Mosier feeding at a yellow flower of the aster family. The females were observed striking a species of Halictus, as these bees passed by the flowers on the way to their nests in the ground. The two would often go to the ground . together, rolling over and over in the dust. The flies prob- ably succeed in some cases in depositing an egg on the body of the bee. 604. Dalmannia vitiosa Coq. Forest Grove, IV-30 (L. P. Rockwood). One specimen. 605. Oncomyia abbreviata Loew Corvallis, V-2 (Lovett). 606. Oncomyia baroni Will. Corvallis, VI-2 (Lovett) ; Horse Lake, VII-25. 607. Oncomyia loraria Loew Corvallis, V-2 and VI-5 (Lovett). 296 CALIFORNIA ACADEMY OF SCIENCES [Proc. 41TH Ser. 608. Oncomyia modesta Will. Hood River, VI-2 to VI-25 (Cole). This is a very com- mon species at Hood River and is apparently parasitic on a bee, determined by Mr. Crawford of the National Museum as Halictus ligatus Say. The flies are often taken on flowers and three specimens had the triangulin stage of some Meloid beetle attached to them. The females perch on grass stems or flowers near the underground colony of bees and swoop down on the unsuspecting pollen gatherers as they approach their burrows. ‘The fly and bee usually go tumbling on the ground together, but the fly does not try to sit on the bee, and always manages to get away in a great hurry, returning to her observation post, there to clean off some of the dust and watch for more victims. It is amusing to watch them follow the bee with their eyes as it looms up on their horizon. They strike so quickly that their flight can scarcely be followed. The bees make no attempt to drive them away, but when attacked make frantic efforts to escape. 609. Myopa longipilis Banks Corvallis, IV-22; Forest Grove, IV-12 (Rockwood) ; Hillsboro, IV-1 (Cole). 1916, Ann. Ent. Soc. Amer., IX, p. 197. 610. Myopa melanderi Banks Hood River, V-10 and 16 (Cole). 1916, Ann. Ent. Soc. Amer., IX, p. 197. 611. Myopa rubida (Bigot) Hood River, V-5 to VI-24 (Cole); Mosier, VI-14 (Childs and Cole) ; Forest Grove, IV-12 (Cole) ; Wheeler Co., VI-15; Corvallis, VI-3. This species is quite common in the Hood River Valley in the spring and early summer, fre- quenting various flowers. 612. Myopa seminuda Banks Corvallis, IV-12 (Cotypes). This species is very near rubida and may be only a variety of that species. 1916, Ann. Ent. Soc. Amer., IX, p. 198. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 297 613. Myopa vicaria Walk. Hood River, V-19 (Cole). 614. Myopa willistoni Banks Corvallis, V-20. New name for pictipennis Will. Family GESTRIDZE Fig. 31. Gastrophilus nasalis Linneus. Bot-flies are medium sized to quite large and have aborted mouth parts. Some are hairy and bee-like in appearance and others blue-black with spots of white bloom. Certain species are well known to all farmers and stockmen. The larve live under the skin of animals, in the nasal passages, and in the stomach. The bot-flies are thus an important family economically. 615. Gastrophilus hemorrhoidalis (Linn.) Occurs generally over North America, as do the other horse bots. 616. Gastrophilus intestinalis DeGeer Commonly known as the “‘horse-bot.” 617. Gastrophilus nasalis (Linn.) Known as the “nose-fly’”’. 618. Céstrus ovis Linn. The sheep bot. 619. Hypoderma lineata (DeVill.) The ox-bot. The only specimen with data was taken at Burns, V-19 (B. G. Thompson). 298 CALIFORNIA ACADEMY OF SCIENCES {Proc. 4TH SER. 620. Cuterebra fontinella Clark The same as emasculator Fitch. Buck Mt., VII-10; Cor- vallis. 621. Cuterebra leporivora Coq. Corvallis, VIII-28. Reared from Mus musculus (Brid- well). 622. Cuterebra tenebrosa Coq. La Grande, VII-6; Corvallis, IV. Family TACHINID/E Fig. 32. Dion@a nitoris Coq. The family is a large one, 957 species being listed in Aldrich’s Catalogue. They are usually short, stout, unus- ually bristly flies. The antennal arista is always bare and the squame, large. Flowers attract many of the species and they are often seen flying about rank vegetation. Some of the smaller species resemble the common house-fly in general appearance. Many of the species are very beneficial, the larve being parasitic on injurious insects. A few attack beneficial in- sects, but only a small percentage. They are the chief con- trol of many caterpillars. From one to one hundred grubs may work on one host larva, much depending on the size of the victim. Most of the species listed below were determined by Dr. J. M. Aldrich, or the determinations already made were verified by him. 623. Gymnoclytia immaculata Macq. Dee and Hood River, VI-8 to VII-5 (Cole and Childs). 624. Gymnoclytia occidua (Walk.) Hood River, VI-3 (Cole). Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 299 625. Gymnosoma fuliginosa Desv. Hood River, VI-2 to VIII-20 (Cole and Childs). Com- mon throughout the Northwest. 626. Phorantha calyptrata Coq. Hood River, VIII-7 (Childs). 627. Phorantha occidentis (Walk.) Hood River, VIII-7 (Cole). 628. Alophora eneoventris (Will.) Hood River, X-3 (Cole). 629. Myiophasia zenea (Wied.) Corvallis and Blitzen River, VI-16 to VII-6. 630. Gymnophania montana Coq. Hood River, VII-18 (Cole). 631. Hyperecteinia pergandei (Coq.) Corvallis; Seaside Beach, X-22. 632. Hyperecteinia retiniz (Coq.) Hood River, VIII-28 (Childs). 633. Lasioneura johnsoni Coq. Hood River, VI-27 and VII-9 (Cole and Childs). 634. Chzetophleps setosa Coq. Forest Grove, IX-28 (Cole). 635. Hypostena barbata Coq. Hood River, VI-16 (Cole) and VII-1 (Childs). Aldrich says in regard to material sent for determination: ‘“They agree with what I call this, but Hypostena and Masicera run together, and this is not separable generically from some I put under the latter farther on. The supposed difference is that in Masicera the first posterior cell ends considerably before the apex of the wing, and in Hypostena close to the apex. ‘The distinction breaks down completely in your ma- terial.” 300 CALIFORNIA ACADEMY OF SCIENCES _ [Proc. 47H Ser. 636. Macquartia pristis (Walk.) Corvallis, V-21. 637. Uramyia acuminata (Bigot) Corvallis, bred from Halisidota argentata. This species was described from Brazil and later found in Mexico. Ac- cording to Aldrich, Townsend’s Uromacquartia halisidotae, named without description, is a synonym of this species. Townsend’s type is the single male mentioned by Coquillett under Macquartia pristis (Revision Tachinide, p. 64) from Aurora Mills, Oregon, and recorded as a parasite of Halisidota argentata on p. 18. This species, as Dr. Aldrich points out, has reversed the usual trend of distribution on the coast. 638. Leskia gilensis (Towns.) Corvallis, VIII-25-1916 (B. G. Thompson). Bred from Sesia rutilans. 639. Leucostoma atra Towns. Corvallis, V-17 (Lovett) ; Hood River, IX-2 (Childs) ; Forest Grove, V-28 to X-15 (Cole). 640. Clausicella setigera Thoms. Forest Grove, VI-5 (Cole). 641. Hyalomyodes triangulifera Loew .... Corvallis, VII-17 (Lovett); Forest Grove, V-20 and Hood River, VI-3 (Cole). 642. Clytiomyia atrata Coq. Hood River, VI-3 (Cole). 643. Dionza nitoris Coq. Hood River, VI-26 and Forest Grove, V-20 to VII-26 (Cole). 644. Xanthomelana arcuata (Say) Hood River, VII-9 and 25 (Cole). Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 301 645. Hemyda aurata Desv. Corvallis, VII-16 (Lovett). 646. Heteropterina nasoni Coq. Hood River, VI-14 to VI-28 (Cole and Childs). 647. Paraplagia spinulosa (Bigot) Coos River, [X-25 (Rockwood). 648. Plagia americana V. d. W. Common in Oregon. 649. Pachyophthalmus floridensis Towns. Hood River, VIII-27 (Cole). 650. Senotainia trilineata (V. d. W.) Hood River, VI-8 to IX-14 (Cole and Childs). This species is a parasite of Sphecius spheciosus. 651. Aphria ocypterata Towns. Hood River, VII-9 (Cole) ; Mary’s Peak, V-15; Pamelia Lake, Mt. Jefferson, VII-23. 652. Ocyptera?! dosiades Walk. Forest Grove, VIII-18 (Cole). 653. Panzeria ampelus Walk. Whitman Nat. Forest, VII-16 (Chamberlin). 654. Panzeria radicum (Fabr.) Duffy’s Prairie (Lovett); Mt. Jefferson, alt., 3,000 ft., VIII-12. 655. Gymnocheta alcedo Loew Mosier, VI-14 (Cole and Childs). These specimens flew low over the ground and through the grass, seldom alight- ing. The species is rare in the Northwest. 21The species common throughout the Northwest is said by Aldrich to be an undescribed form, although usually placed in carolinae. The male gent- talia show good specific characters. 302 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Sep. 656. Exorista futilis O. S. Reported from Oregon by Coquillett. A parasite of the common butterfly, Vanessa atalanta. 657. Exorista vulgaris (Fall.) Corvallis, VI. 658. Phorocera claripennis Macq. Halsey, VIII-14 (Lovett). Bred from Schizura concinna at Corvallis, IX-4 (Gentner). 659. Phorocera facialis Coq. Hood River, VI (Cole). 660. Phorocera saundersii Will. Halsey, VIII-14 (Lovett); Hood River, VI (Cole). 661. Frontina frenchii ( Will.) Large series from Corvallis, IV-30 to [X-30, those on the last date bred from a sphingid on Populus trichocarpa. This parasite has a long list of lepidopterous hosts. 662. Tachina2? mella Walk. Corvallis, V-4 to VI-24. 663. Tachina robusta (Towns.) Corvallis and Hood River, IV-28 to VI-3. Common. 664. Tachina rustica Fall. Corvallis, V-28; Hood River, VI-12 (Cole and Childs) ; Forest Grove, IX-30 (Cole). 665. Blepharipeza adusta Loew Hood River, VI-14 (Childs) ; Corvallis; Philomath, V-16 (Lovett). 22 Four additional species in this genus were collected at Hood River but none could be determined with certainty. Vou. XI} COLE AND LOVETT—LIST OF OREGON DIPTERA 303 666. Blepharipeza leucophrys (Wied.) Hood River, VI-9 (Cole). 667. Winthemia quadripustulata (Fabr.) Not uncommon at Hood River and Corvallis in August. A parasite of the army worm and variegated cutworm. 668. Metacheta helymus (\Walk.) Corvallis, VIII-7 (Lovett). 669. Metopia leucocephala (Rossi) Hood River, VI-12 to IX-2 (Cole). 670. Hilarella fulvicornis (Coq.) Hood River, VI-5 to IX-2 (Cole). Aldrich states that this species is common on sand around fossorial hymenop- tera. 671. Brachycoma sarcophagina (Towns.) Corvallis, VII-30. 672. Gonia exul Will. Corvallis, IX-11; Mt. Jefferson, 6,000 feet; Burns. 673. Gonia frontosa Say Common at Hood River and Corvallis, VI to XI. 674. Gonia porca Will. Described from Mt. Hood. 675. Chztogedia monticola (Bigot) Hood River, IX-2 (Childs); Corvallis, V-4 and IX-5. A parasite of the variegated cutworm and of the larva of the common thistle butterfly (Pyrameis cardui). 676. Cuphocera furcata (V. d. W.) Grant Co., IV-23. 304 : CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Sez. 677. Peleteria robusta ( Wied.) Common at Corvallis, Forest Grove and Hood River, V-19 to [X-29; Detroit and Grant’s Pass. 678. Peleteria tessellata (Fabr.) Corvallis; Mt. Jefferson; Hood River (Cole and Childs). Collected from V-17 to [X-31. Aldrich says, “I name these provisionally as Coquillett did, but this is a complex that will have to be worked out by genitalic studies.” 679. Echinomyia® algens (Wied.) Common in several localities in the Willamette Valley from May to August. Collected on Mt. Jefferson and at Seaside. 680. Echinomyia dakotensis Towns. Hood River, [X-4 (Cole) ; Mt. Jefferson, subalpine, VII. 681. Echinomyia decisa (Walk.) Mary’s Peak, VII-18 (Lovett). 682. Echinomyia hystricosa ( Will.) Corvallis. 683. Epalpus bicolor ( Will.) Barton, VIII-22. 684. Epalpus signiferus (Walk.) Corvallis, IV-26 to VII-4; Hood River, V-5 to VI-24 (Cole). 685. Bombyliomyia abrupta (Wied.) Barton, VII-21. 686. Jurinella soror (Will.) Hood River, VI-5 (Cole). 23 One species, occasionally taken at high altitudes and found in several localities in the west is undescribed. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 305 Family DEXIID annua nee enene™ Fig. 33. Thelaira levcozona Panzer. These are the “nimble flies’ of Comstock. They are very close to the tachinids but usually have longer and more slen- der legs and the antennal arista plumose to the tip. The larve have been bred from beetles. The species listed below were determined by Dr. Aldrich. In addition to these there are five undetermined species. 687. Myiocera cremides ( Walk.) Vale, VIII-15. 688. Thelaira leucozona (Panz.) Hood River, VI (Cole). 689. Melanodexia tristis Will. Corvallis. 690. Trixia gillettei Towns. Mosier, VI-14 (Cole). This species has been considered a tachinid in the past and really does not belong in Trixia which is a tachinid genus; neither does it belong in Para- . phyto where it was placed in Aldrich’s Catalogue. It does not fit any of the dexiid genera in North America. Family SARCOPHAGID AE Hii ON eenns, De Sas ennne rane ogaten*” Fig. 34. Sarcophaga hunteri Hough. 306 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. These much resemble the house-flies in general appearance. The antennal arista is plumose at the base and bare at the tip. The flies are very common about decaying vegetation, excrement, dead bodies, etc., and are called flesh-flies. The larve are found in decaying vegetable and animal matter. A few are true parasites and are economically im- portant. Many of the species are larviparous and some are known to strike grasshoppers on the wing and place their larve in a vulnerable spot. The following species were determined by Dr. Aldrich. 691. Sarcophaga aculeata Aldr. Specimens from Corvallis are probably a new variety. 1916, ‘“Sarcophaga and Allies’, p. 143. 692. Sarcophaga bullata Parker Corvallis, X. 1916, Can. Ent., XLII, p. 359. 693. Sarcophaga cimbicis Towns. Corvallis. 694. Sarcophaga eleodis Aldr. Corvallis, V-6. This species is remarkable, in that it parasitizes beetles of the genus Eleodes. 1916, “Sarcophaga and Allies”, p. 128. 695. Sarcophaga hemorrhoidalis (Fall.) Corvallis, X-21. A scavenger of wide distribution, occa- sionally the cause of intestinal myiasis. The species occurs throughout Europe, Africa and Asia. 696. Sarcophaga helicis Towns. Corvallis, [X-20; Forest Grove. One of the commonest North American species, largely a scavenger but also a true parasite of grasshoppers, Eleodes, etc. 697. Sarcophaga hunteri Hough Corvallis, VI-2 to VII-22 (Rockwood); Forest Grove, X-2 (Creel). A grasshopper parasite. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 307 698. Sarcophaga kellyi Aldr. Corvallis (H. F. Wilson). A grasshopper parasite. Jl. of Agr. Research, II, p. 443. 699. Sarcophaga pallinervis Thoms. Described from Hawaii in 1868 and probably a prior name for §S. communis Parker. It is a very common scaven- ger. Freewater, IX-8; Corvallis, [V-VIII. 700. Sarcophaga planifrons Aldr. Narrows, VII. 1916, “‘Sarcophaga and Allies’, p. 249. 701. Sarcophaga sarracenioides Aldr. Corvallis, V-11 and VIII-15 (Cole and Lovett). Both a scavenger and a parasite. 1916, “Sarcophaga and Allies,” Ds CPAP e 702. Sarcophaga scoparia Pand. Corvallis, VII-8; Forest Grove, V-3 and II-1 (Cole). 1916, ‘‘Sarcophaga and Allies”, p. 214. Dr. Aldrich says that North American specimens deserve a varietal name. 703. Sarcophaga sinuata Meig. Corvallis, V-30. Europe and North America. “Easily recognized in both sexes by the patch of bright yellow tomen- tum on the front side of the middle femur.” 704. Sarcophaga tuberosa exuberans Pand. Corvallis. 1916, “Sarcophaga and Allies”, p. 232. 705. Megerlea rufocauda Bigot Described from Mt. Hood. The status of this species is not known, Coquillett placed it in the genus Sarcophilodes and Brauer considered it should have a new genus erected for it. 308 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Sex. Family MUSCID Fig. 35. Pollenia rudis (¥Fabr.) Small to medium sized, short, and usually hairy flies. The antennal arista is usually plumose to the tip, the first pos- terior cell narrowed or closed and the squame are large. They are disease carriers and very important economically. The common house-fly, or typhoid-fly as it might better be called, is found all over the world. The blow-flies and blue- bottle flies are also widely distributed. The Stomoxyine include blood-sucking species. In this group are the horn-flies, stable-flies and tsetse flies. 706. Pollenia rudis (Fabr.) Medford, VIII-15; Corvallis, [X-4. The cluster-fly is known to be parasitic in earthworms. 707. Cynomyia cadaverina Desv. Corvallis, [V-10 to VII-10. 708. Calliphora erythrocephala (Meig.) Common III to XII. This is the common blow fly. 709. Lucilia cesar (Linn.) Common everywhere. Breeds in excrement, garbage and carrion. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 309 710. Lucilia sericata (Meig.) Common at Corvallis, IV to X. 711. Phormia regina (Meig.) Common at Corvallis. 712. Phormia terre-nove Desv. Common at Corvallis. 713. Protocalliphora azurea (Fall.) Corvallis. 714. Pseudopyrellia cornicina (Fabr.) Common, V to XI. 715. Morellia micans (Macq.) Corvallis and Forest Grove (Cole). 716. Mesembrina resplendens Wahlbg. Rock Creek Valley, Benton Co., X-12; Corvallis, [X-10. 717. Musca domestica Linn. Early settlers in Oregon say that the common house-fly was not seen in the early days; they are by no means rare now. 718. Stomoxys calcitrans (Linn.) The biting house-fly or stable-fly. This species is sus- pected of carrying infantile paralysis. 719. Wzematobia serrata Desv. The ‘‘horn-fly’; common. In his Catalogue, Aldrich re- ported that this fly had reached Idaho in 1901. There are specimens in the Corvallis collection taken Aug. 14, 1900. 720. Myiospila meditabunda (Fabr.) Forest Grove, VII (Cole). 721. Muscina assimilis (Fall.) Portland, VIII-14; Corvallis, V-19. December 14, 1921 310 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 722. Muscina stabulans ( Fall.) Common. The larve breed in manure and may carry disease. They have also been bred from pupz of other in- sects, but these were probably dead pupz. Family ANTHOMYID/E Fig. 36. Limnophora narona (Walk.) This is a large family and, because of their general unat- tractiveness and the difficulties of differentiation, they have been rather neglected in North America in the past. They are blackish or grayish in color and some resemble the ordinary house-fly in appearance. Their larval habits are varied but most of them breed in decaying animal and vege- table matter. 723. Hydrotza orbitalis Aldr. Mt. Jefferson, VIII-1 and Cascadia, VII-21 (Lovett). Malloch det. 1918, Can. Ent., L, p. 311. 724. Homalomyia manicata (Meig.) Corvallis, VI-28. 725. WHomalomyia scalaris (Fabr.) Corvallis. Vor. XI] COLE AND LOVEIT—LIST OF OREGON DIPTERA 311 726. Aricia bicolorata Mall. Hood River, VI-21 (Cole). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 253. 727. Aricia leucorum ( Fall.) Pamelia Lake, Mt. Jefferson, 3,000 feet, VII-19 (Brid- well). Malloch det. 728. Aricia lysinoé Walk. Forest Grove, [X-30 and Hood River, X-3 (Cole). Mal- loch det. 729. Aricia nitida Stein Mt. Jefferson, VII-25, 5,000 feet (Bridwell). Malloch det. 730, Aricia oregonensis Mall. Grant Co. 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 254. 731. Spilogaster uniseta Stein Corvallis. 732. Euphaonia houghii (Stein) Hood River, IX-5 (Cole). Malloch det. Described under Hyetodesia. 733. Limnophora zquifrons Stein ~ Hood River, VI-5 (Cole). Malloch det. 734. Limnophora narona (Walk.) Gaston, VII-10 (Cole). Malloch det. 735. Leucomelina discreta (Stein) Hood River, IX-5 (Cole). Malloch det. 736. Ccelomyia subpellucens (Zett.) Hood River, VI-2 (Cole). Malloch det. 737. Anthomyia pratincola Panz. Corvallis, VI-2 (Lovett). Malloch det. 312 CALIFORNIA ACADEMY OF SCIENCES _ [Proc. 47H SER. 738. Hydrophoria divisa (Meig.) Hood River, VI-3 (Cole). Malloch det. 739. Hylemyia alcathoé (Walk) Salem, VII-4; Hood River, VI-30 and Eagle Rock, VII-1 (Melander) ; Hood River, V-19 to X-30 and Forest Grove, V-25 to IX-27 (Cole). 740. Hylemyia antiqua Meig. The onion maggot, widespread and often injurious. 741. Hylemyia anthracina Mall. Hood River, VI-21 (Cole). 1918, Trans. Amer. Ent. Soc. XLIV, p. 314. 742. Hylemyia fusciceps (Zett.) Corvallis, 1V-30 to VI-6; Gaston, VII-10 (Cole) ; subal- pine regions on Mt. Jefferson, VII-20 (Bridwell). Com- mon in several localities. The larve feed in the roots of cabbages, radish, seed corn, etc. 743. Hylemyia lipsia (Walk.) Grant Co., VII-11 (Chamberlin). Malloch det. 744. Hylemyia sp. nov. Mall. Blitzen River, VII-6. The single specimen a paratype. 745. Hylemyia piloseta Mall. Corvallis, 1V-26. 1918, Trans. Amer. Ent. Soc. XLIV, p. 312: 746. Hylemyia setiventris Stein Joseph. Malloch det. 747. Hylemyia substriata Stein Forest Grove, IV-24 (Cole). Malloch det. 748. Hylemyia variata (Fall.) Forest Grove, VII-5 (Melander); Hood River, VI-4 (Cole). Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 313 749. Eremomyia apicalis Stein Forest Grove, V-12 (Cole). 750. Hammomyia unilineata (Zett.) Hood River, V-16 (Cole). Aldrich det. 751. Phorbia brassicze (Bouché) Common, VII-IX. This is the cabbage-root maggot, and is very destructive in parts of Oregon. It was reported as a pest as early as 1891. 752. Phorbia cinerella ( Fall.) Tillamook, VIII-29 (Creel) ; Vale, VI-29. Malloch det. 753. Phorbia rubivora Coq. Common in several localities in the state. The larve girdle the tips of raspberry, blackberry, dewberry, and loganberry vines. The flies appear early in April and are seen throughout May and June. 754. Phorbia ruficeps (Zett.) Corvallis. 755. Phorbia trichodactyla (Zett.) Corvallis (Lovett). 756. Pegomyia affinis Stein Corvallis. Malloch det. 757. Pegomyia bicolor ( Wied.) Bred out at Corvallis, V-9-1915, from larve mining in the leaves of dock; Tillamook, III-26 (Burrill). 758. Pegomyia hyoscyami (Panz.) Corvallis, V-2 (Lovett), other dates from V-3 to VII-3. The larve are leaf miners on beets and spinach. 759. Chirosia idahoensis Stein Forest Grove, V-17 (Cole); Salem, VII-4 (Melander). Melander det. Corvallis and Forest Grove, V (Cole). 314 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. 761. Fannia fuscula (Fall.) Forest Grove, V-17 and Hood River, VI-13 (Cole). Mal- loch det. 762. Fannia ochrogaster (Thoms.) Forest Grove, VI-2 (Cole). Malloch det. 763. Coenosia ausoba ( Walk.) Hood River, VI (Cole). Malloch det. 764. Ccenosia flavicoxa Stein Hood River, VI-4 (Cole) ; Corvallis, VIII-2 (Lovett) ; Malloch det. 765. Coenosia oregonensis Mall. Corvallis, V-2 (Lovett). 1919, Proc. Cal. Acad. Sci., Ser 4; XG p. 254: 766. Machorchis nana (Zett.) Corvallis, V-2. Malloch det. 767. Scheenomyza chrysotoma Loew Hood River, VI-19 to X-26 (Cole); Forest Grove, V-13 (Burrill). 768. Schcenomyza dorsalis Loew Blitzen River, VII-1. Aldrich det. 769. Lispa brevipes Aldr. Hood River, IX-29 (Cole). 1913, Jl. N. Y. Ent. Soc., AXLE ip. 137. 770. Lispa nasoni Stein Forest Grove, IX-27 (Cole). 77\. Lispa palposa ( Walk.) Forest Grove, IX-27 (Cole). Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 315 772. Lispa spinipes Aldr. Forest Grove, IX-28 (Cole). 1913, Jl. N. Y. Ent. Soc., XXI, p. 136. 773. Lispa tentaculata (DeG.) Hood River and Forest Grove, VI to XI (Cole). 774. Hebecnema fulva (Bigot) Hood River, IX-4 (Cole). Malloch det. 775. Hebecnema umbratica (Meig.) Hood River, VI-21 (Cole). Family SCATOPHAGID/E Fig. 37. Parallelomma varipes (Walk.) These are commonly called dung-flies. Some of the species resemble Anthomyidz, but the squamz are quite small and there are more than four abdominal segments visible. Most of them are brownish or yellowish in color and are common in pastures about cow-dung. In some of the species the habits are predatory. The larve have been bred from excrement and from the stems of plants. Aldrich lists 118 species from North Amer- ica in his Catalogue. 316 CALIFORNIA ACADEMY OF SCIENCES [Proc, 4TH SER. 776. Cordylura’ latifrons Loew Corvallis, V-2 (Lovett). Malloch det. 777. Parallelomma” varipes (Walk.) Gaston, VII-10 (Cole). 778. Scatophaga furcata (Say) Corvallis and Forest Grove, VI. 779. Scatophaga merdaria (Fabr.) Hood River, X-29 (Childs); Forest Grove, III-14 (Cole). The adults are predaceous, having been taken with mycetophilids and leafhoppers. 780. Scatophaga stercoraria (Linn.) Almost cosmopolitan. Many localities, V to X. The larve breed in excrement. Family CLUSIODIDZ£ This family can be recognized by the chetotaxy of the head. The cross-veins of the wings are closely approximated except in Clusia and the sixth vein does not reach the wing margin. The adults are rather rare. They may be found on tree trunks, where they sometimes feed on exuding sap. 781. Clusia occidentalis Mall. Mary’s Peak, at base, V-14 (Lovett); Pamelia Lake, Mt. Jefferson, VII-27 (Bridwell). 1918, Proc. Ent. Soc. Wash., XX, p. 4. 24 There are at least three undetermined species in material collected at Corvallis and Hood River, but the genus will have to be worked up before they can be named with certainty. 25 One undetermined species is not uncommon at Hood River. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 317 Family HELOMYZIDAZ Fig. 38. C£cothea fenestradis (Fallén). The flies of this family have the costa beset with promi- nent bristles and the wings are rather large. Some species live in caves and burrows, others are collected in damp meadows and shady places. The larve have been bred from bat and rabbit-dung, - from decaying wood, and from truffles. 782. Helomyza barberi Aldr. Hood River, VI-3 and X-30 (Cole). 1908, Trans. Amer. Ent. Soc., XXXIV, p.-93. 783. Helomyza limbata Thoms. Forest Grove, V-9 to [X-30 (Cole). 784. Helomyza nemorum (Meig.) Hood River, X-11 (Cole). H. assimilis Loew is a syno- nym. 785. Helomyza plumata Loew Mt. Jefferson, VII-12 (Bridwell) ; Mary’s Peak, at base, 318 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Sex. V-14 (Lovett) ; Nashville, VIII-8; Corvallis, V-10. This was placed as a synonym of quinquepunctata Say in Aldrich’s Catalogue. . 786. CEcothea fenestralis (Fall.) Forest Grove, VI-3 (Cole). 787. Tephrochlamys rufiventris (Meig.) Newport (L. O. Howard); Forest Grove, III-6 to V-20 (Cole and Lane) ; Corvallis, V-10. 788. Leria pectinata (Loew) Newport (L. O. Howard) ; Forest Grove, V-12 (Cole). 789. Leria serrata (Linn.) Baker, IV-9. The earliest described species of the family. Aldrich reports it common in many parts of Europe and North-America. The larve have been bred from fungi and from hen manure. 790. Eccoptomera simplex Coq. Hood River, VI-4 (Cole). Family BORBORIDZE Fig. 39. Copromyza equina Fallén. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 319 Most of these flies are quite small and black or brownish in color. They are found about decomposing vegetable and animal matter and are seen hovering over dung or sewage, in which the larve live. The larve of Leptocera are bred from fungi, diseased potatoes, etc., and are probably aquatic in some cases. The following species were determined by Mr. A. Spuler, who has just completed a monograph of the family which should soon be published. 791. Leptocera atra (Adams) Tillamook, III-26 (Burrill) ; Forest Grove, III-21 and Hood River, IX-29 to X-26 (Cole). 792. Leptocera crassimana (Halid.) Tillamook, III-26 (Burrill) ; Forest Grove, III-21 and VI-2 (Cole). 793. Leptocera fontinalis (Fall.) Portland, VIII-20 (Melander). 794. Leptocera fuscipennis (Halid.) Hood River, VI-19 to X-26 (Cole). 795. Leptocera sp. nov. Spuler Forest Grove, IV-2 and Hood River, IX-5 (Cole). 796. Leptocera sp. nov. Spuler Hood River, IX-5 (Cole). 797. Leptocera limosa (Fall.) Forest Grove, III-21 to IX-27 (Cole) ; Hood River, VI to IX and Corvallis, IX-10 (Cole); Tillamook, III-26 (Burrill). 798. Leptocera sp. nov. Spuler Hood River, X-11 (Cole). 799. Leptocera roralis (Rond.) Hood River, VI-4 to [X-29 and Forest Grove, III-21 (Cole) ; Portland, VIII-20 (Melander). 320 CALIFORNIA ACADEMY OF SCIENCES (Proc. 4TH Ser. 800. Copromyza equina Fall. Everywhere abundant. Breeds in horse dung. Family PHYCODROMID& eelop iclwe Fig. 40. Colopa frigida Fallén. There are two genera, Celopa and Omomyia, in North America. Species of the former genus are found on the sea- beach, often in large numbers about piles of kelp and sea- weeds. They are about the size of species of Fucellia found with them and resemble them in general appearance, but when viewed under a lens are seen to be quite different. 801. Ccelopa frigida Fall. Seaside and Newport Beach in July. Vor. XI] COLE AND LOVETT—LIST ur OREGON DIPTERA 321 Family SCIOMYZID/EZ Fig. 41. Sepedon pacifica Cresson. In these flies the head is short and broad and the face more or less retreating. The wings are long and are often spotted. The adults can be collected along the banks of small streams and in marsh and meadow land. The Tetan- oceride are set aside in a separate family by some authors but they seem to be quite closely related. In flies of the genus Tetanocera the antenne are very long and the wings usually pictured. 802. Helcomyza mirabilis Mel. Tillamook, V (Reeher). 1920, Ann. Ent. Soc. Amer., XIII, p. 309. 803. Sciomyza?° simplex Fall. Oregon Agr. Exp. Station (G. F. Moznette). 804. Melina nana Fall. Forest Grove, III-21 (Cole). 805. Melina pubera Loew Corvallis, V-2 (Lovett) ; Hood River, VI-4 (Cole). 26 According to the synonymy recently worked out by Dr. Melander the Sciomyza of authors becomes Melina Desvoidy. 322 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Sex. 806. Neuroctena analis Fall. Corvallis (Moznette). 807. Tetanocera vicina Macq. Common at Corvallis, V-15 to VII-17; Mary’s Peak, IV-24; large series at Forest Grove, V-25 and IX-30 (Cole). 808. Limnia pubescens Day Forest Grove, V (Cole). 809. Limnia saratogensis Fitch Common at Corvallis, V-12 to IX-29; Mary’s Peak, V-13; Forest Grove, V-25 (Cole). 810. Dictya umbrarum (Linn.) Forest Grove, V-19 to IX-30 and Hood River, IX-4 to X-30 (Cole). 811. Sepedon armipes Loew Corvallis; Hood River, VII-28 and IX-24 (Cole). 812. Sepedon pacifica Cress. Forest Grove, IX-30 (Cole). 813. Hedroneura rufa (Panz.) Forest Grove, [X-30 (Cole). This European species was first discovered at Potlatch, Idaho, by Dr. Melander; there the writer first collected them and later at Vernon, B. C. A good series was taken at Forest Grove in a small marsh. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 323 Family SAPROMYZID/E- Lawuxaniideae Fig. 42. Minettia lupulina (¥abr.) The adults are comparatively small, with rather short legs. The wings are occasionally pictured, and the antennal arista usually plumose. The larve live in decaying vegetable matter or excrement. 814. Sapromyza flaveola Coq. Corvallis, X-21; Mary’s Peak, V-14; Hood River, VIII-21 (Cole) ; Talent, IX-30. 815. Sapromyza planiscutum (Thoms.) Corvallis, V-2 and VI-14. Coquillett made this determina- tion of the specimens in the Corvallis collection. 816. Sapromyza univittata Coq. Corvallis, V-16 to VIII-13. 817. Minnetia lupulina (Fabr.) Corvallis, V-16 to VIIJ-17; Mt. Hood, VIII-10; Hood River, VI and VII (Cole). 818. Minnetia nubila Mel. Recorded from Oregon by Aldrich. 1913, Psyche, XX, p. 74. 324 CALIFORNIA ACADEMY OF SCIENCES {Proc. 4TH Ser. Family LONCH ID This family is very nearly related to the Sapromyzidze but several dipterists have recently separated it from that group. Both the larve and adults have characters that will differentiate them. 819. Lonchza polita Say Hood River, VI-24 (Cole). 820. Lonchza tarsata Fall. Forest Grove, V-20 (Cole). 821. Palloptera jucunda Loew Yaquina Bay, V-16 (Lovett). 822. Palloptera terminalis Loew Forest Grove, IX-27 (Cole). Family TRY PETID/E PeANthi en wt = a di ot nai > : TOY dy tot = = Hl a) BU aU nt z Fig. 43. Aciura maculata Cole. These have been called ‘‘peacock-flies” because of their habit of elevating the wings and strutting about. ‘The female usually has a large horny ovipositor. Many of the species have the wings marked and spotted in various ways. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIiPitcRA 325 The larve live in plant tissue, leaves, stems and fruits. Some of the species are gall-makers and the group contains many of our worst pests of fruit, both citrus and deciduous. They are especially injurious in tropical countries, in some places ruining nearly the whole fruit crop. Aldrich lists over 200 species from North America. 823. Epochra canadensis Loew Common in western Oregon. The flies appear in May and June. The larve live in currants and gooseberries and are a serious pest. 824. (CEdaspis atra Loew Hood River, IX-8 (Cole). 825. Rhagoletis caurina Doane Described from Oregon. 826. Rhagoletis cingulata (Loew) Corvallis, Salem, Cove, Sheridan and vicinity of Port- land. The larve are cherry-maggots. 827. Rhagoletis pomonella (Walsh) Colestin VII-31 (E. P. Van Duzee). One specimen. This is the form bred from snowberry at Vernon, B. C., and recently published on by Mr. Downes. It cannot be dis- tinguished from the eastern apple maggot but does not attack the apple here, confining itself to the snowberry, Sym- phoricarpus racemosus. 828. Aciura maculata Cole Medford, V-28 (Noren); one specimen at Burns, V (Thompson). 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 252. 829. Eutreta diana O. S. Corvallis, VI-21, with a label “sage brush”; Grant Co.; Narrows, VII-1. The type was bred from galls on wild sage, Artemisia tridentata, in Missouri by C. V. Riley. December 14, 1921 326 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser, 830. Eutreta longicornis Snow Blitzen River, VII-6. On examining one of the specimens Dr. Aldrich stated that it was not a true Eutreta. 831. Carphotricha culta (Wied.) Albany, Corvallis, Vale and Forest Grove in June. 832. Eurosta solidaginis (Fitch) Bred from galls on common golden-rod at Hood River (Childs). 833. XKenocheta dichromata Snow Described from Mt. Hood. 834. Neaspilota brunneostigmata Doane Duffy’s Prairie, VII-26 (Lovett). The type was described without locality. 835. Tephritis clathrata (Loew) Blitzen River, VII-6; Ashland, VIII-2 (E. P. Van Duzee). 836. Tephritis despecta (V. d. W.) Narrows VII. This species is near clathrata Loew; it was described under the genus Ensina. Aldrich det. 837. Tephritis finalis (Loew) Corvallis, VII, the larve and pupz in seed pods and ovaries of Eriophyllum lanatum. It is a common species in the Northwest. 838. Tephritis murina Doane Duffy’s Prairie, 5,700 feet, VII-26 (Lovett). 839. Tephritis variabilis Doane Corvallis, V-20 to VI-10 (Lovett); Horse Lake, alt. 6,000 feet, VII-25. 840. Euaresta zequalis (Loew) Hood River, VIII-12 (Cole); Pendleton, VII-17 (Thompson). Breeds in seed pods of Xanthium. Ver. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 327 841. Euaresta araneosa Coq. Colestin, VIII-31 (E. P. Van Duzee). C. W. Johnson det. 842. Urellia aldrichii Doane Corvallis, VII-22. 843. Urellia mevarna (Walk.) Duffy’s Prairie, VII-16 (Lovett). 844. Urellia pacifica Doane Described from Oregon. 845. Urellia solaris Loew Corvallis, VII-16. Family ORTALID Fig. 44. Chetopsis enea (Wied.) These flies are small or of medium size and often with metallic colors. The head is of good size and the frons is broad; the legs are usually stout and rather short. Some 328 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. species, but not especially those in North America, have grotesquely formed heads. The wings are often strikingly marked. The adults are taken in meadows and tall grass. A few species are of economic importance. Aldrich lists about 150 species in his Catalogue. 846. Tritoxa cuneata Loew Corvallis, VII-17 (Lovett). 847. Tritoxa pollinosa Cole Warm Springs Valley, VII-7; one specimen at Burns, V (Thompson), the second specimen known. 1919, Proc. Cal. Acad. Sci., Ser. 4, IX, p. 252. 848. Melieria occidentalis Coq. Blitzen River, VII-6. This species is not uncommon in parts of California. 849. Anacampta latiuscula Loew Forest Grove, I-28 and V-21 (Cole). 850. Anacampta longicauda Hendel Burns, V. Aldrich det. 851. Anacampta stigma Hendel Burns, V (Thompson). 1911, Wien. Ent. Ztg., XXX, p. 23. 852. Tetanops aldrichi Hendel Burns, V (Thompson). 1911, Wien, Ent. Ztg., XXX, p. 20. 853. Tetanops apicalis Cole, new species Fig. 45. Tetanops apicalis Cole, n. sp. Wing of holotype. Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 329 Body shining black, the eyes only slightly higher than long; wing with a small apical brown spot. Length 5.5 mm. Female: Frons reddish brown, face yellow, occiput con- vex and black. Cheeks brownish yellow, gena corrugated to above antenne. Frons deeply punctate almost to front ocellus. Eyes rounded, not much higher than long. Frons, occiput, and first two joints of antenne with short, black, bristly hairs. First two joints of antenne reddish, the third dark brown; arista blackish. Ocellar tubercle black. Palpi dark brown. Thorax and pleura black, mesonotum opaque, the short hairs black and bristle-like; margins of the mesonotum shin- ing black. Scutellum red with two apical black bristles; metanotum shining black; halteres reddish; several weak bristles along posterior edge of mesopleura and about eight weak propleural bristles; sternopleura below with a number of rather strong black bristles. Abdomen entirely black, semishining above, with short black hairs which are sparse and hardly perceptible. Tibia, apices of femora, first two joints of tarsi and base of third brownish yellow; remaining tarsal joints and most of femora blackish brown. Middle tibie with three distinct apical spines which are lacking in the other tibie. Wings faintly infuscated, base and costal margin brownish, the veins mostly yellow; apical third of costal vein, posterior cross-vein, and apices of other veins dark brown. In the apex of the wing there is a rounded brown spot (see fig. 45). Holotype, female, No. 842, Mus. Calif. Acad. Sci.; A. B. Black, collector, May 13, 1917. Type locality, Corvallis, Oregon. This species is in the group with T. aldrichi and T. polita, having rounded eyes, rugose and pitted frons, and black body. 854. Tetanops luridipennis Loew Burns, VI-5 (Thompson). The single specimen is darker than the typical form and lacks the usual yellow color in the wings. It may be an undescribed species. December 14, 1921 330 CALIFORNIA ACADEMY OF SCIENCES [Proc, 41H Ser, 855. Pseudotephritis vau (Say) Forest Grove, VII-12 (Cole). 856. Chrysomyza demandata (Fabr.) Corvallis; Forest Grove, VII-5 (Cole). Reported breed- ing in horse-dung. 857. Chetopsis eznea ( Wied.) Hood River, VI-21 (Cole). Apparently rare in the Northwest. 858. Seoptera vibrans (Linn.) Corvallis, VI-11. Family SEPSIDZZ Fig. 46. Sepsis violacea Meigen. Usually small, black, and slender flies, with the abdomen narrowed basally. The wings are hyaline and often with a spot near the apex. They run about actively and are quick of flight. The adults are commonly seen about excrement and decaying vegetation. 859. Themira latitarsata Mel. Corvallis (Cordley) ; Forest Grove, IX-28 (Cole). 1917, Wash. Agr. Exp. Sta., Bull. 143, p. 45. 860. Sepsis luteipes Mel. Forest Grove, III-3 (Cole). 1917, Wash. Agr. Exp. Sta., Bull. 143, p. 29. 861. Sepsis neocynipsea Mel. Hood River, VIII-21 (Cole). 1917, Wash. Agr. Exp. Sta., Bull. 143, p. 28. Vou. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 331 62. Sepsis signifera curvitibia Mel. Series taken at Corvallis, VIII-13 (Lovett). 1917, Wash. Agr. Exp. Sta., Bull. 143, p. 28. 863. Sepsis vicaria Walk. Portland (Melander). 864. Sepsis violacea Meig. Common at Corvallis and Hood River. 865. Sepsis violacea hecate Mel. Portland, V-22 (Melander). 1917, Wash. Agr. Exp. Sta., Bull. 143, p. 22. 866. Sepsis violacea similis Maca. Oregon City (Melander). Melander makes this form a variety of violacea in his recent revision of the family. Family PIOPHILID/= This group is now separated from the Sepside. The species are mostly black in color and quite small; they differ from the Sepsidz in having the costa broken near the ter- mination of the first vein, the third and fourth veins parallel or slightly diverging, mesonotum finely pubescent, abdomen never with bristles, etc. The larve of some have the peculiar power of “jumping.” 867. Piophila casei (Linn.) A species of general distribution, the larve of which are known as “‘skippers”’ or ‘‘cheese-mites’’; they occur in cheese, rotten fungi, fatty tissues, the fat of ham and bacon, and in dead bodies. Cases of enteric and nasal myiasis are attri- buted to this species. 86. Piophila pusilla (Meig.) Forest Grove, IV-8 (Cole). First recorded from North America in 1913 by Melander. 869. Mycetaulus bipunctatus (Fall) Forest Grove, VIII-1 (Cole). This European species has a very wide distribution. 332 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. Family PSILIDAZ Fig. 47. Psila ros@ (Fabr.) Small slender flies with long antenne, usually shining and with a small clypeus. There are no oral vibrisse. Some of the larve are known to live in roots and various plant galls. Melander records 38 species and subspecies in his recent synopsis of the family (Psyche, XXVII, no. 5, 1920). 870. Loxocera collaris Loew Reported from Oregon by C. W. Johnson. 871. Chyliza leguminicola Mel. Forest Grove, IV-23 (Rockwood). 1920, Psyche, XXVII, p. 99. Mr. Rockwood collected this species on plants of Lupinus polyphyllus Lindl., and found pupe attached to the lower part of the plant in July. 872. Chyliza scrobiculata Mel. Whitman Nat. Forest, VII-14 (Chamberlin). 1920, Psyche, XXVII, p. 98. 873. Psila atrata Mel. Hood River, VI-10 (Cole). 1920, Psyche, XXVII, png. 874. Psila microcera Mel. Duffy’s Prairie, VII-26 (Lovett). 1920, Psyche, XXVII, ps 95: 875. Psila rose (Fabr.) Corvallis (Moznette). This is called the “carrot-rust fly” and is sometimes of economic importance. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 333 Family MICROPEZIDZE Fig. 48. Calobata univitta Walker. Slender flies with large wings and long legs. The face is retreating in profile and the eyes comparatively small. The larval habits are unknown. The adults are predaceous on small insects. 876. Calobata univittata Walk. Hood River VI (Cole). Rather common on rank foliage along a certain stretch of the Hood River. Family EPHYDRID/Z Fig. 49. Parydra bituberculata Loew. Head and wing. These flies have a large head and most of them have a very large mouth. The costa is microscopically broken 334 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Sen. twice and the anal cell wanting. There are no oral vibrissz. Most of the species are quite small and are found at the edges of streams or lakes, often in immense numbers. The larve of some species are found in alkaline lakes and ponds, others in sap and in the stems of aquatic plants. 877. Notiphila decoris Will. Hood River, VI-19 to X-26 and Forest Grove, VII-16 (Cole). 878. Psilopa comta Meig. Baker City, VIII-2 (Creel) ; Hood River, VI-19 to [X-5 and Forest Grove, IV (Cole). 879. Ilythea spilota Curtis Hood River, X-26 (Cole). 880. Discocerina aliena Cress. Forest Grove, V-7 (Cole). Cresson det. 881. Hydrellia hypoleuca Loew Narrows, VIII-1; Hood River, X-26 (Cole). 882. Hydrellia scapularis Loew Forest Grove, VI-3 and Hood River, X-26 (Cole) ; Cor- vallis, V-2 (Lovett). Cresson det. 883. Octhera mantis (DeG.) Corvallis, V-2 (Lovett) ; Corvallis, IX-12 (Cole). 884. Pelina truncatula Loew Hood River, VII-10 to [X-29 (Cole). Cresson det. 885. Pelomyia occidentalis Will. Hood River, X-26 (Cole). 886. Parydra appendiculata Loew Hood River, VI-5 to X-26 (Cole). Common. 887. Parydra bituberculata Loew Forest Grove, V-25 (Cole). Vor. XI) COLE AND LOVETT—LIST OF OREGON DIPTERA 335 888. Parydra limpidipennis Loew Forest Grove, VI-6 and Hood River, X-26 (Cole). 889. Parydra pinguis (Walk.) Hood River, VI-6 (Cole). 890. Parydra quadrituberculata Loew Hood River, VI-3 to X-26 (Cole). 891. Ephydra hians Say Albert Lake (Aldrich). 892. Scatella crassicosta Beck. Forest Grove, IX-28 (Cole). 893. Scatella mesogramma Loew Hood River, VI-19 (Cole). 894. Scatella pentastigma (Thoms.) Hood River, VI-21 to X-26 (Cole). 895. Scatella picea Walk. Hood River, X-26 (Cole). 896. Scatella stagnalis ( Fall.) Hood River, VI-6 to X-26 (Cole). 897. Lytogaster gravida (Loew) Hood River, VI-19 to VII-10 (Cole). Cresson det. 898. Mosillus subsultans (Fabr.) Hood River, [X-29 (Cole). 336 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. Family OSCINIDZ Fig. 50. Chloropisca variceps Loew. These are sometimes called ‘“‘frit-flies”’. They are small, bare, with a flat frons, short antenne and wings, short legs, and ovate or elliptical abdomen. Many are colored or banded. The anal and second basal cells of the wing are absent. The postvertical bristles are converging. Swedish farmers apply the term “‘frits’’ to wheat ruined by the attacks of the wheat-fly. A few of the species in the family are blood suckers and probably carry putrefactive germs to open wounds. Except where indicated the following determinations are by Dr. J. M. Aldrich. 899. Meromyza americana Fitch Hood River, VI-2 and Parkdale, IX-5 (Cole). Cole det. The Wheat-stem Maggot, seldom of economic importance, but in local infestations it may destroy one per cent or more of the wheat heads, as it did in the Yakima Valley, Wash- ington, in 1919. 900. Diplotoxa unicolor Beck. Corvallis; Narrows, VII-1. 901. Chlorops egregia Beck. Corvallis, V-24; Forest Grove, VI-6 (Cole). 902. Chlorops obscuripennis (Loew) Corvallis. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 337 903. Chlorops sahlbergi Loew Forest Grove, V-2 (Cole). Cole det. Compared with a specimen determined by Becker. 904. Chloropisca glabra (Meig.) Forest Grove, IV-22 to V-17 and Hood River, VI-3 to X-26 (Cole) ; Narrows, VII-1. Our commonest species. 905. Chloropisca variceps Loew Corvallis, [V-9 and V-12; Hood River and Forest Grove, VI (Cole). 906. Elachiptera decipiens (Loew) Forest Grove, IV-2 (Cole). 907. Elachiptera nigriceps (Loew) Corvallis, V-2 (Lovett). 908. Oscinis coxendix Fitch Corvallis, V-2 (Lovett). 909. Oscinis frit Linn. Narrows, VII-1. A species of economic importance in Europe. 910. Oscinis sulphurihalterata Endl. Corvallis, [V-2 (Chamberlin). Bred from cones of Abies grandis. 1911, Sitz. Ber. Ges. Natf. Freunde, Berlin, p. 222n 911. Dicrzeus ruficeps Meig. Hood River, VI-3 (Cole). Cole det. 912. Madiza conicola Greene Long’s Ranch and Ashland, IX-2. Reared from cones of Abies concolor. 1919, Proc. Ent. Soc. Wash., XXX, p. 69. 338 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Sex. Family DROSOPHILID Fig. 51. Drosophila busckii Coq. Small, usually yellow, flies, with a short and broad abdo- men. Costa of the wing microscopically broken twice. Arista of antenne plumose, the fronto-orbital bristles proclinate. They are often called ‘‘pomace-flies’, and are found about cider mills and wine presses, also around decaying or fer- menting fruit. The larve live in pomace and in the scum of fermenting juice. A few have quite different habits, one species has been reared from mealy bugs (Pseudococcus), one from spider’s eggs and one is parasitic on the nymphs of the spittle bug, Clastoptera obtusa. 913. Phortica humeralis (Loew) Hood River, VI-16 (Cole). 914. Scaptomyza apicata (Thoms.) Corvallis; Forest Grove, V-11 (Creel); Hood River, IX-29 (Cole). 915. Drosophila buskii Coq. Forest Grove, VIII-27, reared from clover heads (Rock- wood) ; Corvallis, VI-15 and IX-14. 916. Drosophila funebris (Fabr.) Corvallis, IJI-12 and IX-14; Hood River, X-11 (Cole). Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 339 917. Drosophila melanogaster Meig. Hood River, X-11 (Cole). This species is better known as D. ampelophila, the subject of so many experiments in the study of heredity and evolution. 918. Drosophila obscura Fall. Corvallis. Common European species. Melander det. 919. Drosophila repleta Wollas. Corvallis, V-23. Melander det. Family GEOMYZIDZ Fig. 52. Geomyza lurida (Loew) Small or minute flies with rather large wings, the anal and basal cells complete. The clypeus is larger than in the Agro- myzide and the foremost fronto-orbitals are directed back- ward; postvertical bristles convergent. The adults are col- lected by sweeping low plants and shrubbery, some species being quite common. The larve of some live in plant stems. 920. Geomyza lurida (Loew) Hood River, VI-21 (Cole) ; Tillamook, III-26 (Burrill). Described in the genus Balioptera. 921. Diastata eluta Loew Reported from Oregon by Melander. 340 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4tH Ser. 922. Anthomyza gracilis Fall. Forest Grove, VI-23 (Cole); Corvallis, VIII-12 (Lovett). According to Dr. Melander this species is com- mon in Washington. 923. Zagonia oregona (Aldr.) Hood River, VII (Aldrich). 924. Tethina coronata (Loew) Forest Grove, V-12 (Cole). 925. Tethina parvula (Loew) Narrows, VII-1; Blitzen River, VII-6. 926. Trixoscelis frontalis (Fall.) Forest Grove, V-5 (Cole). Family AGROMYZIDE Small flies with widely separated eyes, bare or pubescent arista, and divergent postvertical bristles. The wings are rather short and rounded. The larve of most species are leaf miners; a few make galls. 927. Cerodonta femoralis (Meig.) Gaston, VII-10 (Cole). 928. Phytomyza albiceps (Meig.) Reported from Oregon by Melander. P. genualis Lw. is a synonym. 929. Phytomyza chrysanthemi Kowarz Portland, III-10 (Lovett). Bred from larve mining chrysanthemum leaves. 930. Phytomyza crassiseta Zett. Forest Grove, V-3 and VI-3 (Cole). 931. Phytomyza flaviscutellata Fall. Reported from Oregon by Melander. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 341 932. Phytomyza ilicicola Loew Reported from Oregon by Coquillett. 933. Phytomyza obscurella Fall. Forest Grove, [V-4 and Hood River, IX-5 (Cole). 934. Agromyza abbreviata Mall. Hood River, VI-14 (Cole). Melander det. 1913, Ann. int. soc. “Amer, Vl, p. 285. 935. Agromyza eneiventris Fall. Corvallis, VII-28 (Lovett). 936. Agromyza luctuosa Loew Forest Grove, IV-6 (Cole). 937. Agromyza platyptera coronata Loew Hood River, VI-6 (Cole). 938. Agromyza puella Meig. Hood River, VII-20 and Forest Grove, VII-26 (Cole). 939. Agromyza reptans Fall. Reported from Oregon by Melander. 940. Agromyza scutellata Meig. Forest Grove, V-20 (Cole). 941. Agromyza scutellata orbona Meig. Hanging Valley, alt. 5,400 feet, collected VIII-2 (Lovett), emerged IX-1 from mines in lupine leaves. 942. Agromyza scutellata variegata Meig. Forest Grove, VII-26 (Cole). 943. Agromyza subvirens Mall. Hood River, VI-6 (Cole). 1915, Proc. U.S. Nat. Mus., XLIX, p. 105. 342 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. 944. Agromyza superciliosa Zett. Reported from Oregon by Melander. 945. Agromyza teeniola Coq. Reported from Oregon by Melander. Family MILICHIID/£ This family has long been associated with the Agromy- zide. The costa is microscopically broken twice and there is an anal cell. The clypeus is small. The antennal arista is pubescent. 946. Milichiella lactipennis (Loew) Hood River, VII-9 (Cole). 947. Paramadiza haletralis (Coq.) Very commonly seen in houses on the windows, from February to September. Family OCHTHIPHILIDA Fig. 53. Leucopis griseola Fallen. A family closely related to the Agromyzide and until recently considered a subfamily of that group. There is no break in the costa of the wing and oral vibrisse are absent. The species are densely gray pollinose. The larve have been bred from aphids and various soft scales. Vor. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 343 948. Ochthiphila juncorum Fall. Hood River, VI-28 (Cole). 949. Leucopfis griseola Fall. Hood River and Forest Grove, VI (Cole); Corvallis, VII-6 (Lovett) and V-24 (Bridwell). This species is aphidophagous and was observed in the larval stage feeding on the vetch aphis at Forest Grove. Family HIPPOBOSCID® Fig. 54. Olfersia americana (Leach). This peculiar group is quite different from any other in the Diptera, as we commonly think of that order. The adults are leathery in texture and resemble ticks. Some species are wingless and a few pass through the winged stage and lose these appendages. Most of the species are parasites on the bodies of birds. The horse-tick probably does not occur in North America. The sheep-tick occurs all 344 CALIFORNIA ACADEMY OF SCIENCES [Pnoc. 47H Sux. over the world. The female brings forth young in the pupal stage and has an uterine sac which secretes a milk to feed them. 950. Oxrnithomyia anchineura Speis. Upper Alsea Valley, Benton Co., on Steller’s jay. 951. Olfersia americana (Leach) On great horned owl at Corvallis (Thompson) 952. Melophagus ovinus (Linn.) The common sheep tick. 0 y) 37 \u DCMS UB Pane LF: ee eee Me br % thorn via ew hice a