I9. 
20. 
2I. 
22. 
23. 
24. 
25. 
26. 
FAM. EMPIDID/E 
the basal joint small, the middle joint long, the terminal joint 
short and bristle-like. (Pl. 2, Fig. 14) . 
Eyes of both sexes widely separated ; abdomen evidently longer 
than the thorax; anal angle of wing usually broadly rounded. 
Proboscis twice as long as the head ; almost. entirely devoid of 
hairs and bristles; third vein. forked ; third joint of the 
antenne conical. 
Proboscis about as long as the head ; at. least the. lateral bristles 
of the thorax more or less developed. i 
Submarginal cell closed by the erect fork of the third vein ; third 
antennal joint. expanded nearly oval at base and narrowly 
drawn out at apex, slyle very long and. aristiform ; legs very 
slender ; proboscis with long hairs. (Pl. 8, Fig. 83) . 
Submarginal cell open; antenne of other conformation, style 
shortened ; proboscis bare . j 3 
Hind femora thickened and. longer than their dete libio; 
third joint of the antenne very long, gradually. tapering, 
almost cylindrical. (Pl. 6, Fig. 58). (UHR 
Hind femora and tibie not modified ; third joint of the antenne 
conical 
Third vein forked; T. M metatarsi ah i is. 
(PI. 6, Fig. 54) : 
Third vein simple; tibie of the female sithoni bristles (PI. 6, 
Fig. 60). i wur c E d x 
Third antennal joint. short-ovate, with aristiform | siyle. three 
times its length; anal angle of wing undeveloped, axillary 
incision weak. basal cells shorter than discal, first wein 
ending before middle, third vein. with long. erect fork, fourth 
and iniercalary veins evamescent; thorax strongly comvex, | 
bristles reduced ; ovipositor compressed ; shining yellow species. 
Third antennal joint. lengthened, longer than the style; base of 
wing belter developed, the anal angle usually full, the axillary 
incision usually deep, first vein ending beyond the middle; if 
yellow species not polished i ; 
First antennal. joint nearly or. quite as long as. the third, the 
antenne located high up on the head ; brilliant metallic tro- 
ical species usually with the legs variously modified. 
First antennal joint not lengihened, much shorter than the third 
joint, the antenne located at the middle or but little above the 
middle of the head. . 
Arista much shorter than third antennal joint; ody jiu: third 
vein with erect fork. (Pl. 2, Fig. 13) 
Arista thick and nearly as long as remainder of anteuna ; thorax 
not pubescent ; third vein simple, (Pl. 2, Fig. 12). . 
Robust hairy species, the. face furnished. with hairs; fringe of 
the calypteres rudimentary du. 
Face bare ; calypleres fringed with hairs, AD the n inge short. 
83 
Genus D&uTERAGONISTA, Philippi. 
19. 
Genus TonEus, Melander. 
X 20 
Genus TENoNTOMYIA, White. 
21. 
Genus HaPLoMERA, Macquart. 
22. 
Genus HiraAnEMPIS, Bezzi. 
Genus ATRICHOPLEURA, Bezzi. 
Genus OPEATOCERATA, nov. gen. 
: 24. 
25. 
26. 
Genus LaurnEM?iIs, Wheeler & Melander. 
Genus PoRPHYROCHROA, nov. gen. 
27. 
28. 
