THE CANADIAN ENTOMOLOGIST. 13 



separately ; but I am firmly convinced that this character is too variable 

 to be used for a generic separation. In a large series of Exoprosopa 

 doris O. S. collected in Los Angeles County, Cal,, every grade occurs, from 

 the widely open first posterior cell to the contracted, closed in the imme- 

 diate margin, or some distance before the margin of the wing. Those of 

 the latter kind do not otherwise differ in any respect from the ones in 

 which this cell is wide open, and as specimens of the latter kind were 

 taken at the same time and place as the former, there seems to be no 

 doubt of their specific identity. 



I have discovered another form, closely related to Exoprosopa, but 

 differing from it and from all other Anthracina known to me, in that the 

 first posterior cell is divided by a cross-vein into two cells ; following is a 

 description of this new form : 



Exoptata, n. gen. — Third antennal joint furnished with a distinct ter- 

 minal style j second vein issues from the third opposite or nearly opposite 

 the small cross-vein ; anterior branch of the third vein connected by a 

 cross-vein with the second, forming three submarginal cells ; first posterior 

 cell divided into two cells by a cross-vein placed some distance before tip 

 of discal cell ; anterior branch of third vein and veins 2, 3 and 4 terminate 

 in margin of wing ; no pulvilli. 



Exoptata divisa, n. sp. — Front obscure chestnut-brown, pale yellowish 

 tomentose and black pilose ; face reddish-brown, pale yellowish tomentose; 

 hyperstoma much produced ; first two joints of antennae reddish-black, 

 black pilose, third joint black, elongate-cqnical at base ; style about one- 

 sixth as long as third antennal joint ; proboscis projecting length of 

 labella beyond the hyperstoma ; occiput black, yellowish-white tomentose. 

 Thorax black, yellowish tomentose, the sides and collar yellowish pilose ; 

 bristles above insertion of wings, black ; pleura yellowish pilose. Scutel- 

 lum reddish-brown, yellowish tomentpse, the margin beset with black 

 bristles. Abdomen obscure reddish-brown, irregularly spotted with 

 black ; first segment and base of the second pale yellow tomentose, apices 

 of second and third segments black tomentose, base of the third white 

 tomentose, fourth segment mixed black and yellow tomentose, fifth, sixth 

 and seventh segments white and sparsely black tomentose ; sides of first 

 segment and base of second yellowish pilose, sides of rest of abdomen 

 black pilose ; venter obscure reddish-brown, third and fourth segments 

 black tomentose except a white tomentose spot in centre of each ; other 

 segments white tomentose. Legs and tarsi wholly black, the tomentum, 



