P'UNGUS GNATS OF NORTH AMERICA. I3.3 



low. Cox« and legs, yellow, tarsi darker. Wings hyaline, 

 anterior veins brownish (Fig. 241). Halteres dusky yellow. 

 Ithaca, N. Y. 



31. Sciara sativac n. sp. 

 Alale. Length i mm. Fuscous, hypopygium dark, clasper 

 (Fig. 120^ ; antenna long, more than .8 length of the body, 

 fuscous; palpi, coxje, -legs and halteres yellow, tarsi darker. 

 Wings hyaline, petiole- of media and M2 subequal in length 

 (Fig. 240). Bred from wheat plant infested by Hessian flies. 

 Wilson, Kas. (T. J. Ileadlee). The larv?e are supposed to 

 prey upon the pnparia of the Hessian fly. 



32. Sciara cucumeris n. sp. 

 Male. Length 0.8 mm. Black, mesonotum shining, abdomen 

 sometimes fuscous'; palpi, halteres and antennae fuscous, the 

 last about 0.6 as long as the body; coxae and legs 3^ellowish, 

 the tarsi darker, hind tibia and tarsi subequal. Hypopygium 

 dark, claspers resembling those of 5". sativae but with 3 sub- 

 equal apical spines (Fig. 261). Wings hyaline with dusky veins 

 (Fig. 26'J^. This species was bred from cucumbers, by Mr, 

 E. W. Gabourie, at Savanna, 111. Feb, 29. 



33. Sciara sp. ■ 



Male. Length 1.2 mm. Head and antennae fuscous, palpi 

 pale brown ; antennae nearly 3-4 as long as body ; thorax reddish, 

 dorsum slightly darker with two oval fuscous marks, one over 

 the base of each wing; abdomen fuscous, hypopygium dark, 

 clasper (Fig. 121). Coxae and legs yellow, tarsi darker, hind 

 tibia about .10 longer than the tarsus. Wings hyaline, veins 

 infuscated. Costa produced .8 of distance from tip of Rs to 

 Ml. Venation closely resembling Fig. 242 but with slightly 

 longer petiole of the cubitus. Halteres infuscated, pedicel yel- 

 low at base. Ithaca, N. Y., August. 



A specimen from Wisconsin differs in having the costa less 

 produced. 



34. Sciara ncglccta n. sp. 

 Male and female. Length i to 1.5 mm. Fuscous, including 

 palpi, antennae, halteres and tarsi. Antennae of the male nearly 

 3-4 length of the body. Coxae and legs except tarsi, yellow; 



