FAM. EMPIDID/E 143 
This brief diagnosis is combined from the characters given in the identification key in Dr. Bezzi's 
paper. No type was designated and no species have been assigned to this subgenus. 
SuBGENUS LISSEMPIS, BEZzZI 
Characters. — Small black shining nearly bare species with little difference between the sexes. 
Head round, occiput with few bristles; eyes with small uniform facets, narrowly separated on front and 
face, the face narrower than in the other groups; first antennal joint rather long, third narrow ; proboscis 
little longer than the head, palpi small, black, nearly bare.  Prothorax small, not lobate; bristles 
reduced, yellow, dorsocentrals and acrostichals fine and usually biseriate, no humeral, notopleural or 
posthumeral, two or four scutellars, the middle ones not crossed; propleural and metapleural hairs 
numerous. Abdomen bristleless, with rather long hairs, pygidium small, open, ovipositor long, styles 
long and narrow. Legs hairy and setóse, especially in male, hind legs lengthened, with thickened 
metatarsi, legs of female simple. "Wings more or less narrowed, alike in both sexes, second submarg- 
inal cell rather large, third vein ending at apex, discal cell rather blunt, anal vein small or wanting, 
axillar incision wide and shallow. 
Type species : Enfis nigritarsis, Meigen, by Bezzi's designation. Additional species referable 
to this subgenus are: E. crassipes, Meig., cuneipennis, Bez., liosoma, Bez. and nitidissima, Str. 
SuBGENUS PACHYMERIA, STEPHENS 
Characters. — Generally black, robust species of moderate size, sometimes with yellowish 
abdomen; sexes slightly different in color and leg structure. —Dichoptic, facets small and uniform, front 
of male with the sides parallel or centrally convergent; head globose, occiput hairy and setose; proboscis 
long, palpi variable, short or long, setose, yellow or black; antenne rather short, third joint usually 
strongly narrowed apically. ^ Thorax bristly and pubescent, acrostichals in two or four rows, 
dorsocentrals bi- or pluriseriate, sometimes not distinct from the hairs, hümerals, poshumerals and 
notopleurals sometimes not distinct, sometimes numerous, two or more presuturals, one or more supra- 
alars, four to eight scutellars; propleural and metapleural hairs abundant. Abdomen without bristles, 
pygidium compressed, penis sometimes long and free, ovipositor short. Legs strong, short, hind 
femora more or less thickened, of female sometimes fringed. Wings of female sometimes a little 
broader than of male, neuration complete, third vein straight, ending slightly before apex, second 
submarginal cell rather small, discal cell pointed, axillar incision sharp and usually deep. 
Type species : Emjis femoraía, Fabricius (Pl. 5, Fig. 47), the single original species. 
Pachymerina, Macquart is synonymous, its genotype being also E. femorata, Fab., so designated by 
Coquillett in 1903. The following species belong to this group : E. brevis, Lw., contigua, Lw., Erberi, 
Lw., grisea, Fall., Johnusoni, Mel., mediterranea, Liw., obscuripes, Lw., opaca, Meig., otiosa, Coq., palparis, 
Egg., Picena, Bez., Btilocnemis, Lw., pudica, Lw., ruficorms, Lw., specularis, Bez., subclavata, Lw., and 
trianguligera, Str. 
SuBGENUS PLATYPTERA, MEIGEN 
Characters. — Middle-sized to large, generally blackish or brownish, pollinose species. Head 
globose, occiput hairy, eyes of male contiguous, upper facets somewhat larger than the lower ones; first 
antennal joint usually twice as long as the second and hairy ; palpi hairy. Prothorax small, mesonotum 
hairy, dorsocentrals pluriseriate, rarely uniseriate, acrostichals bi- or pluriseriate, usually several 
humeral, posthumeral, notopleural and supra-alar setze to be distinguished among the lateral hairs; 
pectus hairy, metapleural setze bunched. Abdomen more or less hairy and long-setose on the margins; 
