298 jMr. T. D. A. Cockerell — Descriptions and 



Pronotura nearly as long as the mesonotuin, a little narrowed 

 anteriorly, indistinctly and very finely transversely striated ; 

 the remainder o£ the thorax very finely granulate. Median 

 segment longer than the mesonotuni, narrowed posteriorly, 

 the dorsal surface rather irregularly obliquely striated, Avith a 

 carina from base to apex ; the surface of the posterior trunca- 

 tion transversely striated, with a median sulcus. Abdomen 

 microscopically punctured. The striee on the dorsal surface 

 of the median .segment are rather indistinct, the surface 

 between them being more or less rugose. 



Hah. Bulawayo, Rhodesia (6^. Arnold)^ June. 



Allied to M. jjseudonotogom'a, Brauns, but differs con- 

 siderably in sculpture. 



XXXIII. — Desa'iptions and Records of Bees. — LXXVII. 

 By T. D. A. Cockerell, University of Colorado. 



Epeolus bifasciatus obscuripes, subsp. n. 



cJ . — Length about 6 mm. 



Greater part of scape blackish ; antero-lateral corners of 

 mesothorax entirely black; legs dark brown, tarsi paler and 

 redder ; band on first abdominal segment interrupted. 



Medellin, Vera Cruz, Mexico {H. H. Hyde ; Baker coll. 

 1785). U.S. Nat. Museum. 



E. fumipennis, Say, is not identical with E. bifasciatus, 

 Cressou, or even closely related. 



Epeolus xanthurus, sp. u. 



J . — Length about 8 mm., anterior wing 7, with the 

 aspect of an Odynerid wasp. 



Black, with the mandibles (except basally), tubercles, 

 tegulse, anterior tibite in front, and all the tarsi ferruginous ; 

 eyes yellowish brown ; inner orbits strongly converging 

 below ; antennae black, apical part of third joint red ; face 

 covered with appressed pale ochreous-tinted hair ; thorax 

 above with pale ochreous hair, the mesothorax thinly hairy 

 all over, but with a large H rather obscurely indicated by 

 denser hair ; axillar teeth very short ; postscutellum with 

 middle third dark fuscous, lateral thirds cream-coloured. 



