334 Annals Ejitomological Society of America [Vol. XI, 



14. Neosciara petaini n. sp. 



Male: Length, l.() mm. Head black, somewhat shining; antennae 

 fuscous, about two-thirds the length of the body, segments of flagellimi 

 at least twice as long as wide, distal segments more than twice as long 

 as wide; palpi fulvous. Thorax fuscous, somewhat shining. Abdomen 

 fuscous. Hypopygium fuscous, with a cluster of about 10 broad setae 

 much larger than 'the surrounding setae (Fig. 14b) at base on the mid 

 ventral line; clasper (Fig. 14a) concave, at apex, with about 2 very 

 stout spines and at least 10 smaller spines on the margin of the con- 

 cavity. Legs fulvous, tibiae and tarsi darker. Wings (Fig. 45) hyaline; 

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

 between the humeral cross vein and the tip of Rr, Ri proximad of the 

 forking of M ; petiole of cubitus about as long as the basal section of M ; 

 costa extends a little over half the distance between the tips of Rg and 

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

 the tip of Ms. Halteres fuscous. 



Described from one male collected in Maryland, May 14, 

 1909. Type No. 219. 



15. Neosciara grandis n. sp. 



Male: Length, 2 mm. Head black; antennas and palpi fuscous; 

 antennae as long as head and thorax. Thorax black, shining; humeri 

 angles fuscous. Abdomen dark fuscous, posterior margins of segments 

 black. Hypopygium (Fig. 15b) dark fuscous, with a patch of about 

 6 setas at the base on the median ventral line; clasper (Fig. 15a) blunt 

 at apex with one stout apical spine and no distinct subapical spines. 

 Cox« and femora fulvous, trochanters black, tibiae brown, tarsi fuscous. 

 Wings (Fig. 40) hyaline; media and cubitus without setae; base of Rg 

 at about the midpoint between the humeral cross vein and the. tip of Ri; 

 Ri ends proximad of the forking of M ; petiole of cubitus not quite half 

 as long as the base of media; costa produced more than half the dis- 

 tance 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 fulvous. 



This species differs from trifolii and pauciseta by having no 

 prominent subapical spines on the clasper. 



Described from one male, collected July 13, 1913, on Lost 

 Mount, Cobb Co., Georgia. Type No. 220. 



16. Neosciara trifolii n. sp. 



Male: Length, 1.2 mm. Head black; antennas fuscous, over two- 

 thirds the length of the body. Thorax; mesonotum piceous, shiny, 

 pleurae fuscous. Abdomen black, intermediate segments with anterior 

 two-thirds fuscous, hairs pale yellow; hypopygiimi brown, near its 

 base with a small median ventral lobe (Fig. 16b) margined with about 

 8 setae; clasper (Fig. 16a) with an apical tooth, and with about 4 stout. 



