OCYPTERA. 5 
Group OCYPTERINA. 
OCYPTERA. 
Ocyptera, Latreille, Hist. Nat. Ins. et Crust. xiv. p. 378 (1804). 
1. Ocyptera soror. 
Ocyptera soror, Bigot, Ann. Soc. Ent. Fr. sér. 5, viii. p. 46. 8°. 
Ocyptera simplex, Bigot, l.c. p. 47. 9°. 
Hab. Mexico 12, Orizaba (H. H. Smith & F. D. Godman). 
Three male specimens, captured in December 1887, agree perfectly with Bigot’s 
description of O. soror. Bigot was, however, mistaken in the determination of the sex; 
for, as he calls the pulvilli large (‘‘ pelotes grandes”’), it is evident that he must have 
had male and not female specimens before him. . 
According to his description of O. simplex, this insect seems to differ from O. soror 
in nothing but in the small pulvilli. I believe I am correct in regarding it as the 
female of O. soror. 
Group PHANIN. 
The Phaninz contain as yet no known representative in Central America. 
Group TACHININE. 
The following synoptical table of the genera of this group includes only those which 
are represented, so far as is yet known, in the Central-American fauna :— 
1. Scutellum and abdomen, or at least the abdomen, armed with 
vigorous and more or less blunt spines. . . . . » 2 2 
Scutellum and abdomen with the usual bristles (macrochzet) . 6. 
2. Palpi as long, or nearly as long, as the very elongated pro- 
boscis, and, like this, horizontally exserted . . . . . . Dejeania, Rob.-Desv. 
Palpi notably shorter than the proboscis, sometimes rudimen-_ 
tary or totally absent . 2. 2 1 we. ew eee. 
3. Eyeshairy 2. 2. 2. 2. ew. we we ee.) Aystricia, Macq. 
Eyes bare. 2. 6 6 ee ee ee ee ee ee ee 
4, Palpi rudimentary or absent. . . . 1. 1... . «~~. «©Saundersia, Schin. 
Palpi fully developed . . . . 5. 
5. Third joint of the antenne but little longer than the second . Jurinia, Rob.-Desv. 
Third joint of the antennz more than twice as long as the 
second .... woe . . . . Belvosia, Rob.-Desv. 
6. Third joint of the antenne shorter than the second * . . . Echinomyia, Dum. 
* In one of the species of this genus (Z. dispar) the third joint of the antenne is as long as the second. In 
general structure and facies this insect, however, agrees with the other species of Echinomyia, and I accordingly 
include it in that genus. 
