1918] Revision of the Genus Sciara 337 



forking of M ; petiole of cubitus shorter than half the length of the base 

 of M; costa extends less than half the distance between the tips of Rg 

 and Mi; Rg ends slightly proximad of .85 the length of the wing and 

 considerably proximad of the tip of M2. Halteres fuscous. 



This species is near fatigans in the key, but differs by having 

 fuscous halteres, a shorter costa and a shorter cubitus petiole. 



Described from one male, collected at Felton, St. Cruz Mts., 

 Cal., May 15-19, 1907, by J. C. Bradley. Type No. 225. 



21 Neosciara pilata n. sp. 

 Male. Length, 1.4 mm. Head somewhat shining, black; antennas 

 fuscous; palpi luteous. Thorax somewhat shining, almost black. 

 Abdomen dark fuscous. Hypopygium fuscous, with no cluster of setae 

 on the mid- ventral line at base; clasper (Fig. 21) conical, with 3 apical 

 stout spines, no subapical spines, and several small setae on the inner 

 margin. Legs: coxse and femora luteous, trochanters black, tibiae 

 fulvous; tarsi fuscous. Wings (Fig. 52) hyaline; media and cubitus 

 without sets; base of Rg distad of the mid-point between humerus and 

 the tip of Ri; Ri ends far proximad of the forking of M; petiole of 

 cubitus a little less than half the length of the base of M ; costa extends 

 more than half the distance between the tips of Rs and Mi; Rs ends 

 distad of .85 the length of the wing and slightly proximad of the tip 

 of M2. Halteres; knobs fuscous, pedicels luteous. 



This species is very similar to trifurca, but differs in size, in 

 the longer costa and cubitus petiole, and in the position of R2 

 in relation to that of M2. 



Described from one male, collected at Felton, St. Cruz Mts., 

 Cal., May 15-19, '07, by J. C. Bradley. Type No. 226. 



22. Neosciara ericia n. sp. 



Male: Length, 2.9 mm. Head black, somewhat shiny; antennas 

 fuscous, about two-thirds the length of the body; palpi fuscous. Thorax 

 fuscous, somewhat shiny. Abdomen almost iDlack. Hypopygium 

 fuscous, with no cluster of setae on the mid-ventral line at base; clasper 

 (Fig. 22) globose, with no stout spines. Legs: coxae fulvous, femora 

 and tibias brown, tarsi fuscous. Wings (Fig. 53) hyaline; cubitus and 

 media with no setae; base of Rg distad of the mid-point between the 

 humerus and the tip of Rr, Ri proximad of th.e forking of media; 

 petiole of cubitus much less than half the length of the basal section of 

 M; costa extends over two-thirds the distance between the tips of Rs 

 and Mi; Rs ends distad of .85 the length of the wing, and about opposite 

 the tip of M2. Halteres fuscous. 



This species is near longispina in the key, but differs by 

 having no stout spine on the clasper, and by having a shorter 

 cubitus petiole. 



Described from one male collected at Brookline, Mass., by 

 C. W. Johnson. Type No. 227. 



