FUNGUS GNATS OF NORTH AMERICA. I29 



pale brown, halteres white. Wings like those of 5. Zealandica 

 but the tip of Ri ends at the middle of the wing which is much 

 nearer the tip of Rs than to the base of wing, tip of Rs more 

 proximad than the tip of M2, the costa ends 4 to 5 times nearer 

 the tip of Ml than to Rs. Tarsi with short setae below. Lamellae 

 of the ovipositor 2 to 3 times as long as broad, "N. Y." The 

 S. zealandica here referred to has a venation strongly resem- 

 bling the wing of 5^. coprophila (Fig. 236), but differs in having 

 Ri ending more proximad than in 5. coprophila, and in the 

 cubitus forking, distad of the base of the petiole of the media. 

 The latter condition is rare and if true also for 5. silvestrh 

 would make it readily recognizable. 



17. Sciara incllca n. sp. 

 < Male. Length 2 mm. Honey yellow ; the vertex, the ab- 

 domen and tarsi pale brown, the flagellum of antenna fuscous, 

 eyes black; hypopygium pale, clasper (Fig. no). Wing hya- 

 line, anterior veins dusky (Fig. 229). Salineville, Ohio. 



18. Sciara tritici Coquillett. 



Insect Life. VIL 408. 1895. 



Male. Length 1.8 mm. Antennse two-thirds as long as the 

 body, black, the first 2 joints fulvous; head black, the face 

 fulvous ; palpi brown. Thorax dorsally fulvous, the pleura 

 brownish, marked on the lowest third with a whitish vitta, also 

 with a whitish spot below the humerus. Abdomen reddish- 

 brown, clasper with several short claw-like processes on the' 

 apical third of the inner side and at the tip (resembling Fig. 

 120). Legs testaceous. Wings grayish hyaline, venation re- 

 sembling that of Sciara ncglccta shown in Fig. 242, but in S. 

 tritici Ml is .78 as long as the petiole of the media and the cell 

 Ri narrower toward the apex. Halteres yellow, the knob 

 brownish. 



Female. Length 2.5 mm. Same as the male except that the 

 antennae are only half as long as the body. The last joint of 

 the ovipositor is slightly longer than wide. 



This species is injurious to wheat, its larvae feeding on the 

 roots and mining in the stems. 



