1918] Revision of the Genus Sciara 339 



line at base; clasper (Fig. 25) at least twice as long as wide, with one 

 large apical spine, and no subapical spines. Legs fuscous; the front 

 coxas fulvous. Wings (Fig. 56) hyaline; cubitus and media with no 

 setag ; base of Rg considerably 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 longer than half the length of the base of media ; costa 

 extends about half the distance between the tips of Rs and Mi; R^ ends 

 distad of .85 the length of the wing, and noticeably proximad of the 

 tip of M2. Halteres fuscous. 



This species is near actuosa in the key, but differs especially 

 in the form of the clasper, which is longer, narrower and more 

 blunt at the tip. 



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

 Black Rock Mt., Georgia, at an altitude of 3,500 feet, May 

 20-25, 1911. Type No. 230. 



2G. Neosciara felti n. sp. 



Male: Length, 1 mm. Head shiny black; antennee dark fuscous; 

 palpi fuscous. Thorax shiny black. Abdomen dark fuscous. Hypo- 

 pygium fuscous, with no cluster of setas on the mid-ventral line at base; 

 clasper (Fig. 26) about twice as long as wide, with one very stout apical 

 spine, and about 5 more slender subapical spines, the most proximad of 

 which is longer and more slender than the others. Legs: coxje and 

 femora fulvous to luteous, trochanters black, tibije and tarsi fuscous. 

 Wings (Fig. 57) hyaline; media and cubitus without set«; base of Rg 

 far distad of the mid-point between humerus and the tip of Ri; Ri ends 

 far proximad of the forking of M; petiole of cubitus over half as long 

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

 distance between the tips of R^ and Mi; Rg ends dista(i of .85 the length 

 of the wing and between the tips of Rs and M, ; R^ ends distad of .85 

 the length of the wing and about opposite the tip of Mo. Halteres 

 fuscous. 



Described from one male collected at Ithaca, N. Y., July 9, 

 1904. Type No. 231. 



27. Neosciara macroptera n. sp. 



Male: Length, 1.5 mm. Head somewhat shining, black, antenna 

 fuscous; palpi fuscous. Thorax somewhat shiny, fuscous. Abdomen 

 aknost black. Hypopygium fuscous, with no cluster of setce on the 

 mid-ventral Hne at base; clasper (Fig. 27) at least twice as long as wide, 

 with one stout apical spine and about 8 subequal much smaller sub- 

 apical spines on the inner margin. Legs; coxse fulvous, trochanters 

 black, femora, tibia? and tarsi fuscous. Wings (Fig. 58) hvaline, with 

 no setae on the media and cubitus; base of Rs considerablv distad of the 

 mid-point between humerus and the tip of Ri ; Ri ends proximad of the 

 forking of M ; petiole of cubitus a little over half the length of the base 



