52 ENTOMOLOGICAL SOCIETY 



9- Length, 7 mm. Polished black, but sparsely minutely punctate ; 

 face and cljpeus more closely punctate; clypeus anterior, posterior orbits, 

 legs, except coxae, trochanters, and hind tarsi, which are black, and the 

 abdomen entirely pale sanguineous or yellowish-red; sheaths of oviposi 

 tor black; wings fuliginous, the stigma and nervures black; second sub- 

 marginal cell longer than the first; metathorax rugose, areolated. 



Hab. Illinois, Missouri. 

 (10) Toxoneura seminigra Cr. 



Tenthredoides seminiger Cr. Proc. Ent. Soc. Phil., iv, p. 291. 

 Toxonettron seminigrum Cr. Can. Ent., v, p. 69. 

 Toxoneura seminigra Cr. Syn. Hym., p. 230. 



(J* 9- Length, 7 to 7.5 mm. Yellowish-red, shining; head, antennae 

 breast, metathorax, coxae, and trochanters black; wings blackish-fuscous; 

 metathorax coarsely rugose. 



9- Head black, smooth, and polished, slightly pubescent; narrow 

 inner and broad outer orbits, and basal margin of the clypeus, rufous; 

 antennae entirely black; thorax yellowish-red, smooth, and polished; 

 mesothorax with two approximate black dots, sometimes confluent on the 

 extreme margin, sometimes concealed by the head ; pectus and the pleura, 

 except the broad anterior margin, black; space on each side of the scu- 

 tellum obliquely striated, its lower margin flat, polished and black, as well 

 as the space on each side of the postscutellum ; metathorax black, opaque, 

 coarsely rugose, the disk having a longitudinal ovate excavation sur 

 rounded by a well-defined carina; tegulse yellowish-red, bordered behind 

 with black. Wings uniformly blackish-fuscous; nervures black; lower 

 margin of the first submarginal cell, two dots at tip of praediscoidal 

 cell, and a furcate line at tip of second submarginal cell where it joins the 

 marginal, hyaline. Legs yellowish-red, the coxae and trochanters black, 

 the four posterior tat si and tips of the femora within more or less dusky. 

 Abdomen about as long as the thorax, broadly ovate depressed, polished, 

 yellowish-red, basal segment, orange-yellow, with a more or less distinct 

 black mark on the prominent dorsal middle; valves of the ovipositor ro 

 bust, black. 



(jV Resembles the female, but the antennae are as long as the body and 

 the abdomen more depressed, less broad, and obtusely rounded at tip. 



Hab. Colorado. (Cresson.) 



Types in Coll. American Entomological Society. 



All the specimens of this species I have seen were taken in 

 Colorado, 

 (n) Toxoneura viator Say. 



Toxonettron viator Say. Bost. Journ. Nat. Hist., i, p. 258; Cr. 



Can. Ent., v, p. 67; Lee. Ed. Say, ii, p. 710. 

 Toxoneura viator Cr. Syn. Hym., p. 230. 



>. Length, 6.2 mm.. Sanguineous; antennae, vertex, face below 

 antennae extending almost to clypeus and including base of cheeks, meso- 

 pleura, pectus. and metathorax, black. Thorax polished, feebly micro- 



