340 Annals Entomological Society of America [Vol. XI, 



of media; costa extends a little over half the distance between the tips 

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

 distinctly proximad of the tip of M2. Halteres; knobs fuscous, ped- 

 icels luteous. 



This species differs from felti by having a clasper with no 

 long subapical spines. 



Described from one male collected by J. C. Bradley at 

 Felton, St. Cruz Mts., Cal., May 15-19, at an elevation of 

 300-500 feet. Type No. 232. 



28. Neosciara subtrivialis n. sp. 



Male: Length, 1.5 mm. Head somewhat shining, black; antennae 

 fuscous, a little over half the length of the body; palpi fulvous. Thorax 

 somewhat shiny, fuscous. Abdomen fuscous. Hypopygium fuscous, 

 with no cluster of setae on the mid-ventral line at base ; clasper (Fig. 28) 

 at least twice as long as wide, with about 3 stout apical spines, no sub- 

 apical spines, and several minute subapical setae along the inner margin. 

 Legs: coxae and femora dull fulvous, trochanters black, tibiae and tarsi 

 fuscous. Wings (Fig. 59) hyaline, media and cubitus without setae; 

 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 about half 

 as long as the basal section of M; costa extends about two-thirds the 

 distance between the tips of Rs and Mi; R3 ends distad of .85 the 

 length of the wing and slightly proximad of the tip of Mo. Halteres; 

 knobs fuscous, pedicels luteous. 



This species is near trivialis in the key, differing from the 

 latter by having 3 stout apical spines on the clasper and a 

 shorter cubitus petiole. 



Described from 2 males, collected at Berkeley, Cal., Oct. 

 31, 1906, by J. C. Bradley. Type No. 233. One holotype and 

 one paratype. 



29. Neosciara sexdentata n. sp. 



Male: Length, 2 mm. Head black, not shining; antennae fuscous, 

 half the length of the body; palpi luteous. Thorax not shiny, almost 

 black. Abdomen dark fuscous. Hypopygium fuscous, with no cluster 

 of setae on the mid-ventral line at base ; clasper (Fig. 29) about twice as 

 long as wide at widest part, about 6 apical stout spines and no subapical 

 spines, several minute subapical setse. Legs: coxae fulvous; femora, 

 tibiae and tarsi fuscous; trochanters black. Wings (Fig. 60) hyaline; 

 cubitus and media with no setce; base of Rs distad of the mid-point 

 between the humerus and the tip of Ri; Ri proximad of the forking of 

 M; petiole of cubitus almost as long as the basal section of media; 

 costa extends about half the distance between the tips of Rg 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. 



