FUNGUS GNATS OF NORTH AMERICA. 7I 



13. Exccliid palmafa n. sp. 



Afale. Length 3.5 mm. Ihornx and abdomen dark brown; 

 hypopygium yellowish (Fig. 44). Fore metatarsus about i.io 

 longer than the tibia. Wings hyaline, tinged with brown 

 (Fig. 170). 



Female. Anterior half of the sides of the intermediate 

 abdominal segments yellow. Torrey's Lake, Jackson Lake and 

 Hunters Creek! Wyo. (W.ALW.) Sept., Selkirk Mts., B. C. 

 (J.C.B.) July; Mt. Rainier, Wash (J.ALA.) Aug. 



14. Excchia fnngoruin Degeer. 



Lis. VL 142. 14 p. 22, fig. 1-13 (Tipule). 



Male. Length 4 to 4.7 mm. Coloring as with £. palmota, 

 a yellow humeral spot present, hypopygium dusky yellow CFig. 

 45). Fore metatarsus about 1.15 longer than the tibia. Wing^ 

 hyaline, tinged with brown. 



Female. Similar to B. palmata in coloring, but yellow color- 

 ing less extended. "Europe and Greenland." 



15. Excchia assidua n. sp. 



Alale. Length 3.5 mm. Thorax brown, dorsum dark brown, 

 humeri yellow, hairs 3'ellow, setse black. Abdomen brown, 

 anterior part of the venter a little paler, posterior segments 

 almost black, hypopygium dusky yellow (Fig. 46). Fore 

 metatarsus about .87 of the tibia. Wings hyaline, tinged with 

 brown (Fig. 171). 



Female. A defective specimen from the same place, which 

 may belong here, differs only in having fore metatarsus and 

 tibia subequal, and in having the fork of the cubitus slightly 

 more distad. Alt. Constitution, Orcas, Id. Wash. CT.M.A.), 

 July. 



16. Excchia anxiliaria n. sp. 

 Male. Length 2.5 mm. Dorsum of thorax brown; abdomen 

 brown, the anterior part of the venter and the sides of segment 

 3. yellow; hypopygium (Fig. 47). Fore metatarsus about 1.05 

 longer than the tibia. Wings hyaline, tinged with yellow 

 (Fig. 172). Price Co., Wis. (W.M.W.), Aug., Ithaca, N. Y.: 



17. Excchia bcllula n. sp. 

 Male. Length 2.5 mm. Similar to E. auxiliaria but with 



