AMERICAN HYMENOPTERA. 219 



44. N. bivittatus. • 



Nematus bivittatus, Norton, Bost. Proc. viii, 158, .3, J. 

 Orange-yellow; head, two vittse on mesothorax, base of seutel, metathorax, 

 a spot on breast, and sjiots on abdomen, black. Length 0.18 — 0.22. Br. wings 

 0.45 inch. 



9 . Body stout ; antennas black, more than balf the length of body, 

 third, fourth and fifth joints equal, rather stout; head above antennae 

 entirely black, rugose below summit, sutures indistinct; lower ocellus 

 in a kind of depression, from which (generally) radiates three chan- 

 nels downward; nasus not emargiuate; clypeus notched before; a 

 space between antennaj and the mouth beneath whitish; two vittas on 

 the side lobes of mesothorax, basal half of seutel, metathorax and basal 

 plates, a spot on pectus, sides of second segment, and a spot in middle 

 of most of the following segments of tergum black ; pleura waxen 

 above, its lower third and most of the pectus deep orange ; legs the 

 color of body, with the trochanters whitish, tips of posterior tibice and 

 their tarsi black; inner claw tooth large and near tip; wings hyaline; 

 stigma and costa blackish, the latter paler at base ; first submarginal 

 cross line sometimes obsolete. 



Mass., Conn. Four ? . 



45. Nematus aureopectus, n. sp. 



Oeliraceous ; antennte, two vittse on mesothorax, the metathorax and tergum 

 black. Length 0.34. Br. wings 0.64 inch. 



9 . Short and stout; antennae black, over half the length of body, 



third and fourth joints equal; head smooth above, face below ocelli 



rugose, sutures obsolete ; nasus wide, with a moderate semicircular 



notch ; head pale, with a small dusky or blackish spot about ocelli ; two 



vittas on side lobes of mesothorax, with an indistinct line down the 



groove of forward lobe ; lower half of seutel, metathorax and tergum 



black ; edges of tergum color of body ; upper part of pleura waxen, its 



lower third and pectus orange colored and pilose; legs color of body, 



the base of posterior coxte, tips of their tibiiie and tarsi blackish-brown; 



inner claw tooth obtuse and removed from the tip ; wings hyaline, 



stigma and costa pale; second submarginal cell with one angle beneath, 



the second recurrent nervure coinciding with intersection of second 



and third cells. 



Mass., (S. H. Scudder); New York, (J. Akhurst) ; Penn., (Smiths. 

 Inst.) 



The head is wider and the body stouter than in the preceding spe- 

 cies, and the inner spur of anterior tibiae is apparently bifid. 



