A Systematic Study op the Anthomyiinae of New York 17 



1830 Rob.-Desv. Essai Mvod., p. 560, no. 6. ?Chloe. 



1830 Eob.-Desv. Essai Myod., p. 571, no. 12. Delia. 



1830 Rob.-Desv. Essai Myod., p. 584, no. 14. Egle p. p. 



1830 Rob.-Desv. Essai Myod., p. 598, no. 1. Pegomyia p. p. 



1835 Macq. Hist. Nat. Ins. Dipt., vol. 2, p. 323, no. 10. Chortophila p. p. 



1838 Zett. Ins. Lapp., p. 660. Anthomyza p. p. 



1845 Zett. Dipt. Scand., vol. 4, p. 1371, no. 134. Aricia p. p. 



1864 Lioy. Atti 1st. Veneto, ser. 3, vol. 9, p. 908. Musciosoma. 



1864 Lioy. Atti 1st. Veneto, ser. 3, vol. 9, p. 909. Gastrolepta. 



1864 Lioy. Atti 1st. Veneto, ser. 3, vol. 9, p. 910. Nevrota. 



1864 Lioy. Atti 1st. Veneto, ser. 3, vol. 9, p. 910. Pachystoma. 



1911 Schnb. and Dzied. Die Anthomyiden, p. 94. Leptohylemjda. 



1911 Schnb. and Dzied. Die Anthomyiden, p. 94. Hylemyza. 



1911 Schnb. and Dzied. Die Anthomyiden, p. 95. Crinura. 



1911 Schnb. and Dzied. Die Anthomyiden, p. 96. Deha. 



1911 Schnb. and Dzied. Die Anthomyiden, p. 97. Adia. 



1911 Schnb. and Dzied. Die Anthomyiden, p. 98, Pegohylemyia. 



1911 Schnb. and Dzied. Die Anthomyiden, p. 98. Heterostylus. 



1911 Schnb. and Dzied. Die Anthomjdden, p. 101. Chortophila. 



1920 MaU. Ohio Journ. Sci., vol. 20, p. 270. 



The species of Hylemyia may be separated according to the following 

 ceys: 



Males 



1. Arista plumose, the longest hairs exceeding in length the width of third antennal segment.. 2 

 Arista pubescent or bare, the longest hairs not equal in length to the width of third anten- 

 nal segment 4 



2. Eyes separated by a narrow frontal ^atta; abdominal terga with dark anterior incisures. 



variaia Fall. 

 Eyes approximate, parafrontals contiguous posteriorly 3 



3. Legs and palpi yellow alcathoe Walk. 



Legs and palpi black lasciva Zett. 



4. All tibiae yellowish, not infuscated 5 



All tibiae blackish, rufous, or infuscated 8 



5. Eyes separated by a distance equal to, or exceeding, length of third antennal segment. . 6 

 Eyes separated, at most, by a distance equal to that between posterior ocelH 7 



6. Mid tibia with two or three anteroventral bristles; fore femora infuscated, mid and hind 



femora yellow; presutural acrosticals lacking, at most one or two setulae. 



coenosiaeformis Stein 

 Mid tibia with no anteroventral bristles; all femora entirely infuscated; paired, well- 

 developed, presutural acrosticals present latifrontalis sp. no v. 



7. Abdomen entirely yellow, with dense golden pollen; parafacials and cheeks yellowish, 



with whitish pruinescence; frontal vitta yellowish testacea Stein 



Abdomen graj-ish, with j^ellowish pollen; parafacials and cheeks, in profile, reddish to 

 blackish, with whitish pruinescence; frontal \'itta reddish to blackish, .depressa Stein 



8. Third abdominal tergum with posterior lateral angles produced ventrad; processes of 



fifth sternum with a dense tuft of long, curling bristles; pra absent. . . .pluvialis Mall. 



Third abdominal tergum normal, with ventral margin not produced; processes of fifth 



sternum without dense tufts of long, curling bristles; pra usually present, but may 



be absent 9 



9. Hind tarsus, except for fifth segment, clothed with longish bristles on dorsal and anterior 



surfaces; mid tibia clothed with a conspicuous tuft of long bristles on apical half of 

 anterior and dorsal surfaces; mid metatarsus with a similar tuft of long bristles on 

 anterior and dorsal surfaces; hind puhilH three times as large as mid or fore puhdlli; 

 small species, 4 mm setitarsata sp. nov. 



