106 THE CANADIAN ENTOMOLOGIST. 



twice as long as broad ; the median lobe of the mesonotum and the 

 scutellum uniformly, sparsely punctured; the lateral lobes of the 

 mesonotum uniformly, sparsely punctured, their disk almost 

 smooth; the mesopleura uniformly, coarsely, closely punctured; 

 the saw-guides convex above and below, the two margins con- 

 verging and obliquely truncated at apex above, the apex with a 

 sparse scopa of long hairs; the wings slightly infuscated, the veins 

 and the stigma brownish; the male differs in having the body en- 

 tirely black and the ridge between the vertex and the caudal aspect 

 of the head slightly carinated. Length 6 mm. 



Habitat. — Durham, New Hampshire; Weed and Fiske, col- 

 lectors. Hampton, New Hampshire; S. A. Shaw, collector. 



A small species related to collaris, from which it differs in 

 having the antennal furrows extending only a short distance from 

 the antennal sockets. 



Dolerus konowi, n. sp. — Female and male: Body entirely 

 coal-black; antenna' with the third segment slightly longer than 

 the fourth ; the vertical furrows indicated only as a broad depression ; 

 the vertex with a shallow depression extending from the lateral 

 ocelli behind the compound eyes; the front, the posterior orbits, 

 and the postocellar area uniformly punctured, the punctures fine 

 and close together; the vertex with an impunctate area adjacent to 

 the vertical furrows; the antennal furrow faintly indicated adjacent 

 to the antennal sockets; the appendage of the scutellum finely, 

 transversely striated; the dorsal surface of the mesothorax finely, 

 closely punctured except the disk of the lateral lobes, which con- 

 tains a few distant punctures; the mesopleura closely and coarsely 

 punctured; the pectus uniformly, finely punctured, not so densely 

 as the head or notum; the body, except the abdomen, covered with 

 short, white pile; the saw-guides straight above and gradually, con- 

 vexly, obliquely rounded below and at apex to a point above; the 

 saw-guides sparsely hairy below and at apex and densely above; 

 wings infuscated, the veins and stigma brown; the male differs only 

 in being smaller. Length 11 mm. 



Habitat. — Olympia, Washington; Trevor Kincaid, collector. 



