164 D. W. COQL'ILLETT. 



tose. Legs yellowish, pale yellowish tomentose, front tibise destitute of bristles, 

 tarsi toward the apex black, claws of front tarsi small. Wings pale smoky 

 brown, with a yellowish tinge, the apex more hyaline; first subniargiiial cell 

 divided by a crossvein into two cells. Length 9-10 mm. 



California. Thirteen specimens in May. 



2. Anthrax (Dipalfa) i^terpeiitina O. S. (Syu. Dipnlta serpentinaO. S.) 

 —Black, tips of femora, til>ifE wholly and sometimes first joint of antennfe, red- 

 dish. Front and face reddish tomentose and black pilose, epistoma considerably 

 produced ; proboscis projecting length of labellse or less beyond epistoma ; third 

 joint of antennse short conical at its base; occiput yellowish tomentose. Thorax 

 reddish tomentose, pile of sides and front end yellowish, bristles of hind angles 

 reddish; pleurse yellowish pilose; scutellum reddish tomentose, bristles also red- 

 dish. Abdomen reddish tomentose, that on middle of second, third and fourth 

 segments black, most extended on the fourth segment : pile on sides of first three 

 segments quite abundant, yellowish mixed with a few black ones, that on sides 

 of remaining segments sparse, depressed and chiefly black ; dorsum of abdomen 

 with numerous black pile posteriorly ; venter yellowish tomentose. Legs yel- 

 lowish tomentose, front tibise destitute of bristles, claws of front tarsi small. 

 Wings hyaline, costal cell yellowish, a brown spot in base of each basal and of 

 the anal and axillary cells, a brown crossband, narrowest posteriorly, extends 

 from costal cell to hind margin of wing, filling bases of first submarginal, first, 

 third and fourth posterior cells and of the discal cell, also the apex of each basal 

 and of the axillary cell, inclosing a hyaline spot in base of marginal cell; a sec- 

 ond brown crossband extends from costal cell to hind margin of wing, filling 

 apices of first submarginal, first posterior and discal cells, and bases of second 

 and third submarginal and second posterior cells ; a brown spot on apex of second 

 vein, another near apex of anterior branch of third vein, a third on apex of an- 

 terior intercalary vein, and a fourth on apex of fifth vein, but the last two spots 

 are sometimes jointed to the second brown crossband; first submarginal cell 

 divided by a crossvein into two cells, second vein strongly S-shaped before its tip ; 

 a stump of a vein projects into marginal cell from second vein at or near upper 

 end of crossvein at apex of first submarginal cell. Length 9-11 mm. 



Florida !, Georgia, Colorado, California, Mexico. A single speci- 

 men (Morrison) . 



3. Aiitlira.x (Dipalta) Keenii n. sp.— Front brownish, the crown l)lack, 

 golden-yellow tomentose and black pilose ; face obscure reddish, retreating below, 

 golden-yellow tomentose and black pilose; proboscis projecting about one-half 

 its length beyond eju-stona; antennaj black, the third joint subglobular at its 

 base, the styliform portion linear, slender, and longer than rest of antenna; oc- 

 ciput golden -yellow tomentose. Thorax black, coppery tomentose, the sides and 

 front end reddish pilose, bristles of hind angles coppery; pleura reddish pilose, 

 a cluster of ])ale yellowish pile beneath root of each wing; scutellum black, its 

 tomentum and bristles coppery. Abdomen black, reddish or coppery tomentose, 

 the sides reddish pilose, a cluster of black pile in hind angles of segments from 

 two to six ; venter black, coppery tomentose. Legs brownish, golden-yellow to- 

 mentose and J)lack pilose, front tibife provided with bristles ; tarsi toward the apex 

 l)lack, claws of front tarsi well developed. Wings blackish brown, the following 

 parts hyaline; a conical spot in outer end of axillary and anal cells; a larger 



