330 Annals Entomological Society of America [Vol. XI, 



5. Sciara psittacus n. sp. 



Male: Length, 1.9 mm. Head fuscous; antenna fuscous, scape 

 luteous; palpi fuscous. Thorax fulvous. Abdomen fuscous with 

 posterior margin of each segment and the whole of the venter luteous. 

 Hypopygium fulvous, clasper (Fig. 5) distinctly narrower at apex than 

 the middle, with the comparatively few setas on the surface longer than 

 the numerous slender spines along the inner margin. Coxas and femora 

 luteous, trochanters black; tibiae and tarsi fuscous. Wings (Fig. 36) 

 hyaline; media and cubitus setose; the petiole of media evanescent or 

 very faint ; base of R^ considerably distad of the midpoint between the 

 humeral cross vein and the tip of Ri ; Ri ends considerably proximad of 

 the forking of media; petiole of cubitus about as long as the base of 

 media, costa extends about half 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 luteous. 



Described from 1 male collected in Maine, Aug. 21, 1913, by 

 C. P. Alexander. Type No. 210. 



6. Sciara habilis var. 



Male: Length, 2.4 mm. Head black; antenna fuscous with dull 

 fulvous scape ; palpi fuscous. Thorax subshining, black, covered with a 

 fine, whitish powder. Abdomen and hypopygium almost black. Hypo- 

 pygium; clasper (Fig. 6) narrower at apex than middle, the setae as 

 long or longer than the numerous rather short spines along the inner 

 margin. Coxae and femora luteous; trochanters black, tibiae and tarsi 

 fuscous. Wings (Fig. 37) hyaline; media and cubitus setose; base of 

 Rs about at the midpoint between the humeral cross vein and the tip 

 of Ri ; Ri ends slightly distad of the forking of media ; petiole of cubitus 

 less than one-fourth the length of the base of media; costa extends 

 two-thirds the distance between the tips of Rg and Mi; Rg ends distad 

 of .85 the length of the wing and very sHghtly proximad of the tip of 

 M2. Halteres luteous. 



This variety differs from Sciara habilis, by having more sub- 

 equal spines along the inner margin, and by the fact that 

 habilis is larger. 



Described from one male, collected at Clayton, Ga., May 

 18-26, 1911. Type No. 211. 



7. Sciara globosa n. sp. 



Male: Length, 3.2 mm. Head black, shiny; antennae fuscous with 

 the two basal segments fulvous; palpi fuscous. Thorax shiny, dark 

 fuscous with angles of humeri fulvous. Abdomen dark fuscous, with 

 posterior third of each segment black. Hypopygium dark fuscous; 

 clasper (Fig. 7) subglobose, with about 6 stout subapical spines sur- 

 rounded by short setae. Coxa, femora, tibiae and tarsi fuscous, tro- 

 chanters black. Wings (Fig. 38) smoky brown; media and cubitus 



