86 
Genus OCYPTERA Latr. 
Ocyptera Latreille, HistoLre Nat. Crust, et Insectes, Vol. XIV, p. 378; 1804. 
Parthenia Desvoidy, Essai sur lea Myodaires, ]>. 231; 1830. 
This synonymy is given by Scbiner ' and repeated by Brauer and 
Bergenstamm. 2 Our species have three postsutural and two or three 
sternopleural macrochsetae : 
1. Scutellum bearing one pair of long marginal and sometimes a short 
apical pair of maerockaetae 2. 
Scutellum bearing two pairs of long marginal and a short apical pair 
of macrochaetaB; abdomen black, the sides of the second and 
third segments partly or wholly reddish yellow; length, 8 to 11* 
nun. Canada; Springfield, Mass. : Connecticut; Cape May, N.J. ; 
Maryland: Tifton, (ia.: Selma, Ala.; Tennessee; Lexington, 
I\y.: Michigan: Illinois: Cadet , Mo. : Kansas: Colorado: Santa 
Crnz Mountains and Los Angeles County, Cal. (Essai sur leS 
Myodaires, p. 232; 1830: Parthenia. Ocyptera dotades^W alker, 
List of Dipterous Insects, Part IV, ]). 694 ; 1849. Ocyptera epytus 
Walker, loc. cit. Ocyptera euchenor Walker, loc. cit., p. G0(>. 
Ocyptera califomica Bigot, Annales Soc. Entomol. France, 
p. 42; 1S7S. Ocyptera fumipennis Bigot, loc. cit., p. 43. Ocyptera 
binotata Bigot, loc. cit., p. 44. Ocyptera sp., Brauer and Bergen- 
stamm in lift.) Carolina I >esv. 
2. With a short apical pair of macrochaetae on the scutellum; abdomen 
black, the front corners of the third segment sometimes faintly 
reddish; length ,7 to 8 mm. Westville, N. J.; Delaware County, 
Pa.; northern Virginia; and Missouri. ( I *roc. En t. Soc. Wash- 
ington, Vol. II, p. 1 1 1 : April 2, 1891.) argentea Town. 
Without an apical pair of macrochaetae on the scutellum; abdomen 
black, the sides of the second and front corners of the third seg- 
ment reddish yellow: length, 7 to 10 mm. White Mountains, 
New Hampshire; Horseneck Beach, Mass.; northern Illinois; 
Georgia; Louisiana; Texas: and Reno, Nev. (List of Dipterous 
Insects, Part IV, p. 695; 1849. Ocyptera sp., Brauer and I>er- 
genstamm in litt.) dosiades Walk. 3 
Genus LINNiEMYIA Desv. 
Linnwmya Desvoidy, Essai sur les Myodaires, p. 52; 1830. 
Bonnetia Desvoidy, loc. cit., p. 55. 
Bonellia Desvoidy, loc. cit., p. 56. 
Marshamia Desvoidy, loc. cit., p. 57. 
Micropalpus Macquart, Historic Nat. Insectes, Dipteres, Vol. II, p. 80; 1835. 
The author last mentioned referred the above four names of Desvoidy 
to one genus to which he applied the name of Micropalpus, but the law 
1 Fauna Austriaca, Vol. I, p. 412; 1862. 
"Zweif. Kais. Mus. Wien, VI, p. 235; 1893. 
■Oci/ptera Uttiirata Olivier belongs to the Dexid genus Euantha, and is the same 
species which Wiedemann afterwards described na Dexia dives. 
