84 THE CANADIAN ENTOMOLOGIST. 



L. viodestus Loew. — ^ . Differs from transittis as follows : Front 

 whitish tomentose, ar.d black and yellowish pilose; face whitish tomentose, 

 oral margin yelowish pilose; proboscis projects about one fourth its 

 length beyond hyperstoma; first two joints of antennae yellowish pilose. 

 Occiput whitish tomentose, that in middle above reddish. Thorax mixed 

 whitish and yellow tomentose, more whitish in front and each side ; pile 

 reddish and black, longest behind ; bristles reddish ; pleura white pilose. 

 Scutellum shallowly concave behind, mixed white and yellow tomentose, 

 pile and bristles reddish. Abdomen largely reddish, tomentose, that on 

 base and sides whitish ; pile white and yellowish ; venter mixed white and 

 yellowish tomentose. Tomentum of legs mixed white and yellowish. 

 Wings hyaline, costal cell yellowish. 



^ . Hypopygium rather large, and considerably dilated below. 



Length, 7-10 m. m. Cal. ! Texas. 5 ^ and 5 $ in April and May. 



3. Aphcebantus Loew. (Syn. Triodites O. S.) 

 I, — Thorax and abdomen destitute of white-tomentose dorsal vittas. . . .2 

 Thorax with two, abdomen with one white-tomentose dorsal 



vitta vittattis n. sp. 



2. — Proboscis never projects more than the length of its labell^e beyond 



the hyperstoma 3 



Proboscis projects half its length beyond the hyperstoma. .litus, n. sp. 

 3. — Abdomen black tomentose and with white-tomentose cross 



bands )>ms O. S. 



Abdomen yellowish tomentose, destitute of distinct white- 

 tomentose cross bands 4 



4. — Abdomen densely clothed with long, erect, whitish pile ; abdomen of 

 male depressed, about as wide as the thorax, in outline elongate- 

 ellipsoidal hirsuUis, n. sp. 



Abdomen never densely clothed with long erect pile, abdomen of 

 male usually sub-cylindrical and tapering -^o%\tx\ox\y.cervimis Lw. 



Aphcebantus litus, n. sp. — % . Front black, the lower half gray polli- 

 nose, mixed yellowish a:id white tomentose and black pilose ; face black, 

 destitute of tomentum, densely gray pollinose except on lower edge, sparse 

 white and yellowish pilose, most abundant in middle below ; oral margin 

 white and yellowish ; proboscis projects about half its length beyond hy- 

 perstoma. Antennae black, first joint nearly twice as long as the second, 

 and about as long as the thickened basal part of third ; styliform portion 



