340 A. L. MELANDER. 



Page 210. Drapetis pubescens Loew. 



The basal cells are large for this genus. 



Page 212. Drapetis spectabilis mihi. 



In the collection of the Museum of Comparative Zoology at Cam- 

 bridge are three specimens from Bosque Co., Texas (Belfrage). 



Drapetis xaiithopodus Williston. 

 Is the same as gilvipes Loew. 



Page 214. Platypalpus liipatus sp. nov. 



Male. Leugth 2.5 mm. — Black species, head and thorax overlaid with hair- 

 like tomeutum. Face white. Antennffi black, the outer joint oval, its style two 

 and a half times its length. Proboscis black. Bristles of body and of legs dirty 

 white, scutellum with two long and two short bristles. The glabious space of 

 the niesopleurse small. Abdomen and hypopygium shining black, the latter 

 twisted to the right, the basal edge of the under side with several long black 

 hairs. Coxse black, piceous apically ; legs black, except towards the trochanters 

 and knees, the hind tibiae and the bases of the tarsal joints, which places are dull 

 yellowish ; front femora thickened as much as the middle ones, front tibiae 

 stouter than the middle ones, middle tibiae with a strong apical spur, remainder 

 of legs simple; legs with scattered yellowish hairs, longer beneath on the femora, 

 front tibiae with about ten longer hairs on the front edge, the hairs gradually be- 

 coming long below and not arranged in a definite series. Halteres yellow. 

 Wings hyaline, veins fuscous, third vein straight, fourth vein slightly sinuous, 

 subparallel with the third and slightly diverging from it at the tip, second basal 

 cell the longer, its cross-vein oblique, the distance between the two cross-veins 

 on the fourth vein le.ss than the length of the anterior cross-vein, anal cross-vein 

 straight, inflexed, evanescent, anal vein faint, obsolete at base. 



One male; Cloudcroft, New Mexico. May 27, 1902. (H. L. 

 Viereck.) 



This species is associated with the eastern pachycnevms, but in that 

 form the antennae are dark fuscous, the front femora but slightly 

 thickened, the third vein incurved, converging with the fourth, 

 while along the fore edge of the front tibiae there is a series of but 

 seven hairs, with a similar series also on the hinder edge. The 

 hairs of the inner edge are finer and number eight. Pachycvemus 

 measures 2.3 mm. 



Platypalpus Vierecki sp. nov. 

 Male and Female. Length 2.5 mm.— Black pollinose species, with yellow legs. 

 Face and front whitish, occiput cinereous, beneath with dense white hairs. An- 

 tennae yellowish, extreme tip of the outer joint and the arista dusky, outer joint 

 lanceolate, the arista but little longer than the antenna. Proboscis black, palpi 

 prominent, yellow. Thorax with golden dust above, becoming cinereous on pleu- 

 rjE, a small shining space present above the middle coxae ; bristles yellow, scutel- 



