FUNGUS GNATS OF NORTH AMERICA. 73 



21. Excchia capillata n. sp. 



Alale. Length t,.=, mm. Thorax and abdomen dark brown, 

 humeri and small spot on venter of segments 2 and 3 faintly 

 yellow; hypopygium yellow (Fig. 52). Fore metatarsus and 

 tibia subequal in length. \A'ings hyahne, tinged with brown 

 (Fig. 177). 



Female. Like the male but venter yellow, this color extend- 

 ing up on the sides along anterior margin of each segment. 



Kingston, R. L (J.B.), May; Dinwiddle Creek and Torrey's 

 Lake, \\'yo. (W.MAV) Sept.'; Stanford Univ., Cal. (J.M.A.) 

 Feb.; Ithaca, N. Y. ! May, Sept. Bred from Collybia dryophila. 



22. Bxcchia obediens n. sp. 



]\Iale. Length 3.5 mm. Thorax and abdomen brown; hy- 

 popygium dusky yellow (Fig. 53). Fore metatarsus about i.o.|. 

 longer than the tibia. Wing hyaline, tinged with brown (Fig. 

 178). Stanford Univ.! (J.ALA.) Feb.; Berkeley, Cal., 

 (\V.M.\\\) March. 



2T^. Bxcchia atfrita n. sp. 



Male. Length 3.5 mm. Thorax and abdomen brown, lateral 

 margins of the mesonotum paler, posterior end of abdomen 

 darker brown, humeri and venter and sides of segment 2 and 3. 

 yellow; hypopygium dusky yellow (Fig. 54). Fore metatarsus 

 an J tibia subequal in length. Wings hyaline, tinged with brown 

 (Fig. 179). 



Female. Like the male but venter yellow, this color extend- 

 ing up on the sides along anterior margin of each segment. Wis., 

 (WM.W.) Aug.; R. L (J.B.). Nov.; Ithaca, N. Y. Aug.; 

 Orono, Me., Nov.; Forest Hill, N. J.; (Weidt), Apr., Nov. 



24. Bxcchia repanda n. sp. 



Male. Length 3 mm. The mesonotum, scutellum and 

 metanotum brown, the humeri, j^leura and lateral margins of 

 the mesonotum yellow. Abdomen dark brown ; the .venter of 

 segments i, 2 and 3. the posterior part of the sides of 2, the 

 greater part of the sides of 3, and hypopygium (Fig. 5^) yel- 

 low. Fore metatarsus but little if any longer than the tibia. 

 Wings hyaline, tinged with brown (Fig. 180). Ithaca, N. Y. ' 

 Aug. 



Female. Like the male but with abdomen like that of the 

 female of £. attrifa. Boston, Mass., ( C.W.J. ). Sept. 



