18B BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



Pi'osacautha anmilicoiiiis, sp. iiov. 



9 . Length, l* to 2.2""". Head and abdomen black, shining; the tho- 

 rax dull vufbiis, punctate, the metatliovax and nietaplenra staincMl 

 Avitli bhick. Head transverse, the vertex subacute, face smooth, with 

 a few scattered punctures, the orbits longitudinally aciculated. An- 

 tenna^ 12-Jointed, long; the scape long, rufous, extending one-third its 

 length beyond the ocelli, its apex and the i>edicel fuscous: the tirst 

 three fnniclar Joints are long, sube(|nal in length, yellowish white; 

 the fourth fnniclar joint and the club, black; the fourth funidar 

 joint is a little longer than thick and fully as thick as the preceding 

 joints. Scutelluni roughly punctate; the post-scuteliuni armed with 

 an unusually long acute spine. Metathorax with the angles acute. 

 Wings. fuscous, i)aler basally. Legs pale rufous, t\w coxa' and tro- 

 chanters yellowish, the tips of the femora aud tibiae a little fuscous. 

 Abdomeu as long as the head and thorax together, polished, the 

 petiole and the second segment longitudinally striated. 



Habitat. — Washington, D. C. 



Types in National Museum, American Entomological Society, aud 

 Coll. Ashmead. 



Described from many specimens, taken in winter, by sifting. 



Prosacantha nigripes, sp. iiov. 



$ 9. Length, 2 to 2.4"'". Black; thorax and scutellum finely ru- 

 gose, subopaque; head transverse, vertex ])unctate, the occiput trans- 

 versely aciculated, the face longitudinally striate, the cheeks with 

 striic converging toward the mouth. Mandibles rufous. Antennai 

 12-joiuted, black, scape not extending beyond the middle ocellus; ped- 

 icel small; the tirst three fnniclar joints nearly ecpial in length, about 

 thrice as long as thick. 



Posterior angles of metathorax with a short tooth. Legs entirely 

 black. Wings fuscous. Abdomen slightly longer than the head aud 

 thorax together, jxilishcd, the petiole and second segnuMit longitudi- 

 nally striated, the disk of the third scgmt^nt faintly longitudnially 

 acicidated. 



In the S the antenme reach to the middle of the abdomen. The 

 Hagellar joints very slightly subequal, the first the longest and thick- 

 est, four times as long as thick. 



Habitat. — The Dalles and Portland, Oregon. 



Types in Coll. Ashmead. 



Described from specimens received from ]\Ir. 11. F. Wickham. , 



Prosacantha striatifrons, sj). nov. 



S. Length, 2""". Black; head broadly transverse, shining, vertex 

 smooth. Irons and face longitudinally striated; mandibles long, falcate, 

 pale rufous; thorax and scutellum rugulose, oi)a(iue; legs l)rownislv 



