132 GENERIC SYNOPSIS. 
HILARA Meig. Tacuypromia p. Fab. 23 sp. T. fuscipes Fab. Curt. 130. 
Proboscis shorter than the head; third joint of the antenne elongate; style 
short. 
BRACHYSTOMA Meig. Baccua p. F. 2sp._ 8B. longicornis Meig. 
Proboscis shorter than the head; third joint of the antenne elongate-conic; style 
very long. Meig. pl. 22. f. 8. 
GLOMA Meig. lsp. Gi. fuscipennis. Meig. pl. 22. f. 11. 
Proboscis shorter than the head ; third joint of antennz globular. 

Family 6. (or 12.) Tachydromiide. (Tachydromii Meigy. Em- 
pides p. Mcq.) 
HBUNOMROMUA® Halo) eae ee ce 4 sp. H. bistigma Hal. 
Hypropromia Mcq. 
Legs simple; proboscis short, thick, somewhat exserted; wings with an oblique 
apical nervure; antenne 3-jointed; seta 2 jointed. Curt. 513. 
SCIODROMIA Hal. MSS. WHeteopromia Meg. 1 sp. H. immaculata Hal. 
Differs from Heleodromia in the proboscis being perpendicular, longer than the 
head ; palpi short, incumbent. 
ADOPTE RA Meg | reese seek Set ifs sp. Fe arronaia Balt 
[Lerroscetis Latr. g 
Very narrow; eyes large ; hypostoma linear ; proboscis short, thick ; palpi in- 
cumbent; seta of antenne very long; wings with a complete central cell. 
Mcq. pl. 8. f. 13. 
HEMERODROMIA Aff. Sicus Latr. 8 sp. Ta. Mantispa. Pz. 103. 16. 
Anterior cox elongate; fore femora incrassate ; fore tibiw curved (fig. 129. 9.). 
TACHYDROMIA Meg. (1827). Tacuyrrza Metg. (1830). 11 sp. M, arro- 
gans L. Curt. 477. 
Anterior coxe short; fore thighs thickened, serrated; fore tibiz spined on the 
inside ; wings veined, as in fig. 129. 8.; antenne 2 jointed, with a long seta. 
PLATYPALPUS Meg. Tacuypromia Meig. y.6. 40 sp. Cal. eursitans F. 
Differs from the last in having the middle thighs thicker than the anterior, and 
spined beneath ; transverse nervures oblique. Meig. 3. t. 23. f. 23. 
ELAPHROPEZA Mcq. Tacuypromra Fall. 1 sp. TT. ephippiata Fall. 
Wings without an anal or discoidal cell; three posterior cells; legs simple. Meq. 
pl. 8. f. 14. 
DRAPETIS Meig. 5sp. D. exilis Meig. Curt. 397. 
Short, broad; legs long, simple ; antennz as long as the head, 3-jointed, third 
ovate-conic; seta long, angulated at base; no discoidal cell; anal nerve 

straight. 

* « Macquart has divided Heleodromia into two genera, but the name should be 
retained for the second division; the type illustrated by Curtis belonging to this, 
and the name applying to their aquatic habits: (has not Hydrodromia been em- 
ployed among Crustacea ?). I would propose to substitute Sciodromia as the 
generic name of the first division. Meigen is inclined to unite them to Brachy- 
stoma ; but the nervure surrounding the entire wing sufficiently discriminates them. 
Paramesia Macq. is synonymous with Heleodromia, and P. Roberti seems to be H. 
fontinalis. The two genera with Ardoptera form a small group between Hemero- 
dromia and the proper Empide.” ( Haliday MSS.) 
