46 KANSAS UNIVERSITY QUARTERLY. 



Wings subhyaline, without distinct picture, though the color is more 

 intense in front ; yellow in the costal cell. 



Female. Wings distinctly brown before the third vein and in the 

 basal cells and proximal portion of the discal cell. Abdomen diffusely 

 whitish poUinose behind ; the second segment largely reddish ; ventral 

 process of the fifth segment small. 



Length 10 millimeters. Two specimens, Chapada, H. H. Smith. 



7. Oonops ornatus, n. sp. 



Male. Vertical callosity reddish ; below it an opaque black band, 

 connected in the middle with a V-shaped spot about the base of the 

 antennae ; the front elsewhere, and the face for the greater part, light 

 yellow, the sides of the latter with a broad silvery sheen. Cheeks 

 black. Antennae red; the first joint a little shorter than the third 

 joint; second joint about twice the length of the first; style short, 

 thick. Thorax black, opaque; near the humeri and behind, as also 

 on the scutellum, thickly golden pollinose ; pleurae diffusely pollinose; 

 Abdomen opaque black ; the hind margin of the first three segments, 

 and the remainder of the abdomen, save spots on the sides of the 

 fourth and fifth segments, thickly light golden pollinose. Legs reddish 

 brown, the base of the tibiae and the basal joints of the tarsi yellow- 

 ish. The brown of the wings extends to the third vein and through 

 the middle of the first posterior cell ; costal and subcostal cells lighter 

 colored. 



Length 11 millimeters. Two specimens, Chapada, H. H. Smith. 



8. Oonops parvus, n. sp. 



Female. Closely allied to C. sylvosiis Williston, but' differs in the 

 lighter colored antennae and their more elongated third joint, which is 

 as long as the first two joints together; in the wings being wholly 

 grayish hyaline, save a quadrate brown spot in front a little beyond 

 the middle ; and in the lighter colored legs and abdomen. The pro- 

 boscis is as long as the antennae; the legs are brown or brownish 

 yellow. 



Length 8 millimeters. Two specimens, Chapada, H. H. Smith. 



