82 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull, 



I». atroviolaceum var. tardum (Norton). Tenthredo atrovio- 

 lacea var. tarda Norton. Connecticut (E. N.) ; Hartford 

 (Nason). 



Tenthredopsis Costa. 



*T. semilutea (Norton). Tenthredo semilutea Norton. 

 Female : body black, with the clypeus, labrum, mandibles, 

 supraclypeal area, line on collar, tegulae, lateral margin of prono- 

 tum, broad spot on mesopleuras, line on metapleurae, pectus for the 

 most part, small spot of lateral lobes of mesonotum, scutellum, the 

 coxae, and the trochanters, white; abdomen beyond the basal 

 plates, antennse either entirely beyond the second segment or 

 beneath beyond the second segment, and the remainder of the legs 

 except a black ring on the apex of posterior femora, rufous. Male 

 differs in having a line on the front and middle legs extending to 

 the apex of femora and on the posterior legs extending to the apex 

 of the tibiae, with the disk of the basal plates, the two basal 

 abdominal segments, and a minute spot around the abdominal 

 spiracles, black. Length 7-8 mm. 

 Connecticut (E. N.). 



Neopus MacGillivray. 

 °N. 14-punctatus (Norton). Tenthredo 14-punctata Norton. 

 Tenthredopsis 14-punctata Norton. 



Body greenish white, with a spot on the vertex, the disk 

 of each lobe of the mesonotum, the disk of the pronotum, the 

 sutures of the thorax, the legs more or less above, the tarsi dark- 

 est, and the sutures of the abdomen, black ; sometimes the 

 metathorax entirely, a line between the prothoracic pleurae and 

 pectus, and a triangular spot on the disk of the abdominal seg- 

 ments, black. Length 9 mm. 



Bivena MacGillivray. 



°B. delta (Provancher). Pachyprotasis delta Provancher. 

 Tenthredopsis delta Provancher. Homosoneura delta Provancher. 

 Female: body black, with the clypeus, labrum, mandibles, 

 supraclypeal area, genae, inner orbits, collar narrowly, tegulae, 

 spot on mesopleurae, scutellum, spot above posterior coxae, coxae 

 for the most part, and trochanters, white ; antennae beneath, legs 

 beyond trochanters, except the posterior femora and tibiae at 



