FLIES OF THE GENUS OGCODES — SCHLINGER 245 



Also, the color of the pile was found to be a reliable specific criterion 

 within reasonable limits, but in any case the type of pilation should 

 be noted in future descriptions. The color of the integument, as a 

 specific character, although variable in some species, likewise was 

 found to be reliable in the majority of those species examined. 



Systematics 



History: The genus Ogcodes was described by Latreille in 1796 

 but did not receive its type, Musca gibbosa Linnaeus, until 1802. 

 Meigen (1804) discussed the genus under the name Henops, but this 

 name was established by Illiger (1798) for Syrphus gibbus Fabricius, 

 which is now the type species of Cyrtus Latreille. Meigen (1822) 

 revised the genus Ogcodes, again under the name Henops, but at the 

 same time suggested the emendation Oncodes, for Ogcodes. This 

 emended spelling has been used at different times by many authors, 

 but I agree with Sabrosky (1948, p. 408) in retaining the original 

 orthography, although granting that Oncodes may be a better con- 

 struction of the word. 



Some of the more important contributions to the systematics of 

 this genus were made by Meigen (1822), Erichson (1840), Gerstaecker 

 (1856), Cole (1919), Brunetti (1926), Pleske (1930), Sack (1936), and 

 Sabrosky (1944, 1945, 1948). 



Genus Ogcodes Latreille 



Ogcodes Latreille, Precis. Caract. Gen. Ins., p. 15-i, 1796; Hist. Nat. Crust. Ins., 

 vol. 3, p. 432, 1802; Tabl. Method., in Nouv. Diet. d'Hist. Nat., vol. 24, 

 p. 200, 1804.— Macquart, Hist. Nat. Ins. Dipt., vol. 1, p. 368, 1834.— 

 Erichson, Entomographien, vol. 1, p. 169, 1840. — Gerstaecker, Stett. Ent. 

 Zeit., vol. 27, p. 353, 1856.— Bigot, Ann. Soc. Ent. France, vol. 4, p. 89, 

 1856. — Schiner, Fauna Austriaca, vol. 1, p. 73, 1862. — Bigot, Ann. Soc. 

 Ent. France, vol. 9, p. 319, 1889.— WandoUeck. Zoll. Anz., vol. 34, p. 549, 

 1909.— Coquillett, Proc. U.S. Nat. Mus., vol. 37, p. 578, 1910.— WandoUeck, 

 Einl. Monog. Inflatae, pp. 4-30, 1914.— Cole, Trans. Amer. Ent. Soc, 

 pp. 45-59, 1919.— Sabrosky, Amer. Mid. Nat., vol. 31, p. 387, 1944; Amer. 

 Mid. Nat., vol. 39, p. 408, 1948. 



Henops Meigen, Klass. Beschreib, Europ. Zweiflug. Ins., vol. 1, p. 150, 1804; 

 Syst. Beschreib. Bekannten Europ. Zweiflug. Ins., vol. 3, p. 98, 1822. — 

 Zetterstedt, Ins. Lapponica (1838), p. 573, 1840.— Walker, List Dipt. Ins. 

 Brit. Mus., pt. 6, supp. 2, p. 353, 1854 (not Illiger, 1798). 



Oncodes Meigen, Syst. Beschreib. Bekannten Europ. Zweiflug. Ins., vol. 3, p. 99, 

 1822. — Verrall, Stratiomyidae etc.. Dipt. Brachy. Great Britain, vol. 5, 

 p. 461, 1909.— White, Pap. Proc. Roy. Soc. Tasmania for 1914, p. 69, 1915.— 

 Hardy, Pap. Proc. Roy. Soc. Tasmania for 1921, p. 77, 1922.— Sfeguy, Fauna 

 de France, vol. 13, p. 166, 1926.— Brunetti, Ann. Mag. Nat. Hist., vol. 18, 

 p. 590, 1926.— Pleske, Konowia, vol. 9, p. 163, 1930.— Sack, Die Fliegen, 

 vol. 98, p. 15, 1936.— Millot, Bull. Soc. Zool. France, vol. 63, p. 162, 1938.— 

 Hardy, Proc. Lmn. Soc. New South Wales, vol. 45, p. 486, 1940.— Ploraley, 



