TEXAN HYMENOPTERA. 207 



Notooyptaus dorsalis. n. sp, 



2- — Long, narrow, black, subsericous, abdomen shining, apex pointed and 

 subcompressed; vertex, occiput, prothorax above, mesothorax, scutellum, post- 

 gcutellum and metathorax above fulvo-ferrugiuous ; wings violaceous-black. 

 Length .60 — 1 inch. 



Four specimens. (Belfrage.) Closely allied to plagiatus, Smith, 

 of which it may be a variety. This and the next species were found 

 on Solidago flowers in September and October. 



Notocyphus texanus, n. sp. 



% .• — Black, sericeous, head and thorax in front with short thin black pubes- 

 cence; anterior orbits, short narrow line on posterior orbits, posterior mar- 

 gin of prothorax, broader medially, a dot on scutellum, a band near base of 

 third abdominal segment slightly interrupted centrally, and a spot on apical 

 segment, whitish ; metathorax and posterior coxse with a silvery sericeous pile, 

 more obvious in certain lights; wings blackish, with a beautiful violet irides- 

 cence; abdomen narrow, subfusiforra. Length .60 — .73 inch. 



Four specimens. (Belfrage.) Allied to albopictus, Smith. 

 Planiceps feralis, n. sp. 



J. — Small, black with a violaceous reflection, clothed with a very short, 

 silvery cinereous pile; antennse short, robust; clypeus rounded at apex ; pos- 

 terior margin of prothorax broadly arcuate, lateral angles of metathorax 

 densely clothed with a silvery-white pubescence; wings hyaline, apex dusky; 

 legs densely silvery sericeous at base; abdomen about as long as thorax, nar- 

 row, subcompressed at tip, the three basal segments except apical margins 

 covered with a silvery cinereous pile, more obvious in certain lights. Length 

 .33 inch. 



One specimen. (Coll. G. W. Belfrage.) 



Aporus fasciatus. 



Aporus fasciatus, Smith, Brit. Mus. Cat. iii. p. 175. 

 One S specimen. (Belfrage.) 



Aporus minimus, n. sp. 



£. — Very small, slender, black, with a thin cinereous pile; antenna ro- 

 bust; posterior margin of prothorax transverse, slightly emarginate centrally ; 

 wings faintly dusky, marginal cell narrow, lanceolate, very acute at tip, second 

 submarginal scarcely half the length of the first and much narrowed on both 

 sides towards the marginal, receiving the first recurrent near base and the sec- 

 ond about the middle, the third discoidal cell transverse, pointed beneath, 

 rounded above; legs long, especially posterior pair; abdomen as long as head 

 and thorax, narrow, subcompressed. Length .16 inch. 



One specimen. (Coll. Gr. W. Belfrage.) 

 Aporus rufiveutris, n. sp. 



J. — Black, opaque, sericeous; metathorax covered with a very dense dull 

 cinereous pile, posterior face excavated and transversely wrinkled; wings dusky, 

 apical third fuliginous, neuration as in minimus; legs strongly sericeous; ab- 

 domen entirely bright fulvo-ferniginous, sericeous. Length .30 inch. 

 One specimen. (Coll. Gr. W. Belfrage.) 



