FAM. EMPIDID/E 
anal cell narrow ; bygidium with exposed dorsal Processes, the 
dorsal valves usually narrow and fissate 
7. Fürst antennal joint longer than the second and. both Mich 
setose; slyle avistiform, indistinctly four-jointed, the basal 
joint minute, the tevminal like a. short. hair, the. intermediate 
joinis lengthened and moderately thick ; palpi strongly setose; 
basal valve of the bygidium ovate, selose and not fissate; hind 
margin of the wing somewhat thickened . : 
Antenne not setose, at most with a few fine basal hairs, furnished 
wh a short style or a long arista; palfi not strongly setose; 
metapleure bare ; basal valve of the bygidium irregular and 
fissale; veins bare, wings scarcely margined behind 
8. Metapleurg bare; veins bare. (Pl. 6, Fig. 53). 
Metapleure with a cluster of. sete; first second and. sometimes 
third veins closely setulose on the upper surface and the second 
underneath. (Pl. 5, Fig. 50; PI. 6, Fig. 5l). 
9. Proboscis short, scarcely protruding beyond the head; third 
antennal joint short, furnished with a lengthened arista which 
is lwice as long as the antenna and. whose basal segment is 
narrowly tubular, followed by a very long. geniculate. short- 
pubescent portion and ending in a distinct fine hair; third 
vein furcate, discal cell of moderate size. 
Proboscis long, extending obliquely forward, balpi duh; third 
antennal joint lengthened cylindrical, the terminal style short 
and thick and tipped wilh a short bul distinct. bristle ; discal 
cell large and blunt 
IO. Arista terminal, the third joint of ü the antenne E idi and oll: 
ular. (PI. 6, Fig. 56) DE AME 
Arista dorsal. inseried near the base of the veniform third 
antennal joint; calypieres lobose amd thichly margined. 
(PI. 6, Fig. 52; PI. 8, Fig. 73, 74). 
rr. T/urd vein furcate. (Pl. 6, Fig. 59) 
Third vein simple. (Pl. 8, Fig. 80) 
12. Metapleure bare of hairs ov brisiles ; costa. encompassing the 
entire wing, axillary incision varely distinguishable, usually 
obtuse ov entirely wanting; style ending in a distinct short 
bristle (except in Philetus) ; usually the bristles of the body, 
head and legs weak; male genitalia usually more or less of 
the form of an epipygium with compressed ventral keel. 
Metapleure bearing a variable number of hairs ov bristles in 
front. of the halteres; costa stopping at the tip of the wing, or 
al least. greatly thinned on the hind margin, auxiliary vein 
straight, not reaching the costa, axillary incision sharp; eyes 
of male contiguous above (he antenna, except in some species of 
Empis a4 Rhamphomyia; style not ending in a. distinct 
thin short bristle; usually the bristles of the head, body and 
Genus TrMALPHES, nov. gen. 
Genus OREOGETON, Schiner. 
Genus APALocNEwiS, Philippi. 
Genus Growa, Meigen. 
Genus ITEAPHILA, Zetterstedt. 
Genus ANTHEPIsCOPUS, Becker. 
81 
IO: 
Il. 
I3 
