NO. 2128. NEW GENERA OF MVSCOID FLTE>^—TOWNSEND. 623 



PHYLACTEROPODA, new genus. 



Genotype. — Clausicella tarsalis Coquillett, Joiirn. N. Y. Ent. Soc, 

 vol. 3, 1895, p. 56. 



Differs from Clausicella as follows: Last joint of front tarsi of 

 female greatly elongated, widened, and flattened, longer than the 

 front metatarsus. Third antennal joint of female three to fom* times 

 as long as second, slightly widening toward apex; that of male con- 

 siderably broadened, convex on under edge in profile, about three and 

 one-half times as long as second. Face below about twice as wide 

 as one eye. Paraf acials very narrow, quite level with the f acialia and 

 facial depression in female; linear in male, the facial depression a 

 little sunken. Cheeks of female nearly two-fifths eye-height, those 

 of male less than one-third same. Female front anteriorly nearly or 

 quite three-sevenths of head- width; male front a little narrower, 

 both anteriorly and at vertex. Apical cell narrowly open, or prac- 

 tically closed. First vein ending but slightly outside point opposite 

 to small crossvein, not unusually removed from auxihary vein. 

 Second aristal joint over one- third to nearly one-half as long as the 

 last joint. Male with a pair of median marginal bristles on first 

 segment, female without. Vibrissal axis of head noticeably less than 

 antennal axis. Marginal row of weak appressed bristles on first two 

 segments, differentiated from the short microchaetae of the general 

 surface. 



NEPHOPTEROPSIS, new genus. 



Genotype. — Clausicella johnsoni Coquillett, Rev. Tach., 1897, 

 pp. 55-56. 



Differs from Phylacteropoda as follows: 



Female. — Last front tarsal joint only about half as long as front 

 metatarsus, only slightly widened and flattened. Face not so wide, 

 about one and one-half times one eye. Cheeks hardly one-third eye- 

 height. Body more narrowed. Wings narrower. Hind crossvein 

 nearer to small crossvein, apical cell very narrow. Abdomen bur- 

 nished metallic violet, thorax and scutellum very densely pollinose. 

 Legs slender, especially the tarsi. Wings clouded. 



LOPHOSIOCERA, new genus. 



Genotype. — Lophosiocera curriei Townsend, new species, for Clausi- 

 cella setigera Coquillett, Rev. Tach., 1897, p. 56, part (not LopJiosia 

 setigera Thomson, Dipt. Eugenics Resa, 1868, p. 527), holotype being 

 specimen labeled Owl Creek Mountains, Wyoming, taken August 29, 

 1896, by R. P. Currie, in whose honor the species is named. Holotype 

 No. 19623, U.S.N.M., male. 



