jo ENTOMOLOGICAL NEWS. [January, 



upper surface, the medial sulcus very strongly marked, and is deepest 

 basally and on the posterior face, all the sulci marked with strong fovese, 

 the posterior face with the lateral edges marked with a series of rugae, 

 before the apex there are several very strong, transverse striae; the top 

 of the metapleurce marked by a series of strong foveae, which form an 

 angle at about the middle; wings hyaline, tinged with brownish along the 

 costa, nervures brown, the stigma black. Abdomen glabrous, sparsely 

 clothed with pale fuscous hairs, most dense beneath and on segments 4- 

 6 above; last segment above with a longitudinal, medial carina, which 

 does not extend beyond the middle. Length n 12 mm. 



Two specimens, Camden County, N. J., July 5, 1891, and Il- 

 linois (coll. Amer. Ent. Soc.). The specimen from Illinois has 

 the middle clypeal tooth indistinct. Related to C, obsciirus and 

 C. contiguus. 



Crabro excavatus n. sp. 



9. Black; head transversely quadrate; front subopaque, with fine and 

 exceedingly close punctures; near the inner orbits, before the anterior 

 ocellus, there is a short, oblique sulcus; vertex shining, with deep sepa- 

 rated punctures; face very narrow in the region of the antennae, the space 

 between the eyes at this place is a little broader than the length of the 

 third antennal joint; clypeus well carinated, the anterior margin entire, 

 rounded out; antennas short, the third joint about two and a half times 

 longer than the second, and is a little longer than the two following joints 

 united; the ocelli situated in slight, but distinct, depressions; mandibles 

 strongly bidentate at apex. Prothorax emarginate medially; dorsulum 

 with very strong punctures, the punctures confluent anteriorly; scutellum 

 and postscutellum with strong, separated punctures, those on the post- 

 scutellum feeblest; metathorax roughened, with a strong medial sulcus, 

 which extends to about the middle, where it is interrupted by a transverse 

 ridge, the posterior face rugose, depressed medially; mesopleurae rugose; 

 wings subhyaline, nervures blackish. Abdomen shining, the segments 

 depressed at base and apex, with distinct, separated punctures, beneath 

 segments 2-5 smooth, with the exception of a series of strong punctures, 

 which extend from side to side at about the middle; the last segment 

 above strongly excavated; mandibles, except base and apex, prothorax 

 above, tubercles, an elongated oblique spot on the mesopleurae beneath 

 the tegulae, scutellum and two spots on the dorsulum at the anterior-lateral 

 angles of the scutellum, the postscutellum, legs, the tarsi lighter, the first 

 abdominal segment above, except the apical margin, which is black, the 

 second above and beneath, except apical portion, all reddish brown;* 

 scape and following two antennal joints, and a large, ovate spot on the 

 second abdominal segment, situated at about the middle, yellow; head 



* This may be due to being left too long in the cyanide bottle, but as part of the antem.ae 

 and two spots on the abdomen are yellow, it is probable that it is the natural color. 



