192 Annals Entomological Society of America [Vol. XI, 



Drapetis alitemigra, sp. nov. 



nigra Melander, Tr. Am., Ent. Soc. xxviii. 208, f. 12, 17, 24 (1902). 



Length 1.6 mm. Head round; occiput subshining, bottom of the 

 front one-third to one-half as wide as the second joint ; face and cheeks 

 linear; palpi black overlaid with brown; second joint of the antennas 

 without a seta; one pair of diverging postocellar bristles, two or three 

 verticals. Mesonotum closely pubescent, no discal bristles, the lateral 

 ones confined to three or four in front of the wings, lateral scutellar 

 bristles small; pleurae shining. Legs simple, without bristles, the front 

 knees more or less brownish. 



Washington, British Columbia, Texas, South Dakota, 

 Pennsylvania, New York, Massachusetts. 



The species is very close to naica, but in that species the 

 third vein has a uniform anterior curve, there are no postocellar 

 bristles, the ocellar and vertical bristles are small and the head 

 is longer than wide, with the front at the bottom less than one- 

 third as wide as the second joint of the antennae. In aliter- 

 nigra the ocellar, postocellar and vertical bristles vary in size. 



Drapetis bispina, sp. nov. 



cT . Length 1 .4 mm. Head, thorax and abdomen black, legs 

 including the coxee entirely yellow. Head spherical; occiput lightly 

 dusted, orbits not differentiated; front and face very narrow, almost 

 linear, the lowermost sides of the dusted face somewhat diverging; 

 antennse one-third the head-height, the basal joints yellowish, the 

 second joint without seta, the third joint black, triangularly ovate, as 

 long as the basal joints together, the terminal arista one-half longer 

 than the antennae, short-pubescent; palpi and a pair of apical setae 

 yellow, proboscis brown. Mesonotal hairs blackish, rather long and 

 dense, obliquely outstanding, only the posterior dorsocentral bristles 

 evident, no humeral, 3 supraalar, 1 intraalar, 4 scutellar bristles, pleurae 

 mostly polished. Abdomen shining, the hairs rather evident especially 

 the brown ones margining the last tergite and the pale ones of the 

 underside of the hypopygium; hypopygium oblong, larger than the 

 vertical diameter of the abdomen, nearly erect but somewhat twisted 

 to the right, its left valve with broad rounded end, the penis exserted as 

 a curled filament. Legs relatively stout, covered with yellow hairs 

 which are long but sparse on the underside of the anterior femora, 

 otherwise devoid of bristles except for a pair of contiguous curved black 

 spines located on the inner flexor side of the hind femora at three-fourths 

 the length and extending as far as the knee, inner apical side of the 

 hind tibiae with a small luteous lappet covering the very base of the 

 metatarsus, no tibial spurs. Halteres black, the roots fuscous ; hairs of 

 the calypteres golden. Wings hyaline, veins narrow and light brown, 

 all the veins diverging, costal sections proportioned 1 : 0.6 : 1 : 0.7, 

 first vein ending at basal two-fifths of the wing, fourth vein terminating 



