FUNGUS GNATS OF NORTH AMERICA. I29 



yellow with a broad brown fascia which in the darkest speci- 

 men covers all but very narrow incisures ; in the paler speci- 

 mens the yellow predominates ; the last two or three segments 

 in all the specimens wholly dark brown ; venter yellow ; Jiypo- 

 pygium (fig. 107) dark brown, ovipositor yellow. Legs yel- 

 low, tarsi somewhat darker, foremetatarsus eight-tenths, the sec- 

 ond fore tarsal joint half as long as the tibia; tarsal claws each 

 with a tooth at the base, empodium profninent, brush-like. 

 Wings (fig. 84) yellowish hyaline, veins dusky yellow; the small 

 cell shorter than wide, trapezoidal, wider on anterior margin, in 

 this respect differing from M. halterata. Stem of the halteres 

 yellow, the elongate knob black. In one wing of one specimen 

 R2+3 is wanting, thus making a venation exactly like that of 

 Aatemia. 



Four males and one female taken in August, Ithaca, N. Y. 

 See page 187 for an additional species. J_ZJ— 



2. Genus Eudicrana Loew. 

 Eudicrana, Loew, Berl. Ent. Zeitschr. XIII, 142. 1869. 

 Lateral ocelli contiguous to the eye margin, the middle ocel- 

 lus absent. Legs slender ; tibial setae moderate ; spurs long. 

 Wings (fig. 83) large, of moderate width and rather hairy; 

 costa produced beyond the tip of R^+g ; subcostal vein ends in 

 the costa; subcostal crossvein present; basal cell R rather short; 

 cell Ri elongate ; cells in the forks of media and cubitus very 

 long, acuminate at the base, the fork of the latter proximad of 

 the R-M crossvein ; second anal strong, long, but not reaching 

 margin of the wing. 



Eudicrana obutnbrata Loew. 

 1869. obniinbrata, Loew, Berl. Ent. Zeitschr. XIII. 141. 

 Female. Length 6 mm., wing 5 mm. Head fuscous-black, 

 lower half of the face, cheeks and palpi pale yellow. Scape of 

 antenna yellow, the flagellum fuscous-black. Mesonotum, scu- 

 tellum and metanotum yellow, with the longer and stronger 

 setae black, the pile, fuscous. Pleura pale yellowish, near the 

 coxae mottled with black. The first two abdominal segments 

 and the last, black; the remainder maculate with black; ovi- 

 positor short, yellow. Coxae pale yellowy the heavier pile black, 

 the delicate pile, pale. Legs pale yellowish, the tibial spurs and 

 the tarsi fuscous. Wings subcinereous, the apex and the pos- 



