TEXAN IIYMENOPTERA. 217 



f Taoliytcs obsciirns, n. sp. 



9. — Black j face and clypcus clothed with a dense silvci-y pubescence ; 

 prominence above lower ocellus divided centrillly by an impressed line, and 

 behind it a lunate excavation or depression; back of head and cheeks with a 

 silvery sericeous pile; posterior margin of prothorax silvery; lateral and pos- 

 terior margins of mesothorax, pleura and metathorax with a silvery sericeous 

 pubescence, longer on metathorax, which hits a small fovea at apex above and 

 a central groove on posterior face; tegulte dull testaceous; wings hyaline, 

 faintly dusky at apex; legs black, tibife and tarsi silvery sericeous; abdomen 

 black, smooth and shining, more or less sericeous, base of first segment with a 

 rather long, thin white pubescence, lateral apical margins of segments 1 — .'J 

 more or less silvery sericeous, apical segment with dense golden pubescence. 

 Length .55 inch. 



Three specimeus. (Belfrage.) Easily distinguished from the other 

 species by the apical segment of abdomen only being golden, the 

 clothing of the remainder of body having a silvery lustre. 



^ Taeliytes texanus, n. sp. 



'^ . — Black, clothed with an erect white pubescence, face and elypeus 

 densely silvery ; vertex as inoJ.vcwrws; mesothorax and scutellum finely and 

 distinctly punctured, lateral and jjosterior margins and posterior margin of 

 l)rothorax more or less silvery in certain lights; metathorax with long white 

 pubescence, a smooth shining shallow fovea on apex above and a short deep 

 fissure on up])er half of posterior face; tegulse dull luteous, obscure at base; 

 wings hyaline; legs black, with a silvery sericeous pile, especially dense on 

 tibiffl, apical joints of tarsi more or less fulvous ; abdomen convex, with a thin 

 glittering pile, segments 1 — 4 each with a silvery sericeous band on apical 

 margin more or less interrupted medially; apical segment bright silvery 

 Length .40 — .45 inch. 



Five specimens. (Belfrage; Boll.) This is our smallest species. 



. Taeliytes abdoniiualis. 



Larra abdominalis, Say, West. Quar. Rep. ii., p. 77. 

 Six 9 specimens. (Belfrage; Boll.) 



^ Taehytes rufo-fasciala, n. sp. 



%. — Black; face, elypeus, posterior margin of prothorax, lateral and pos- 

 terior margins of mesothorax, postseutellum, sides of metathorax and pleura 

 more or less, silvery; mandibles yellow-ferruginous, rufo-piceous at tips; ver- 

 tex as in obscurus ; metathorax sculptured as in tcxmius ; tegulse luteous ; 

 wings subhyaline, stained along the nervures with yellowish, nervures honey- 

 yellow; legs fulvous, coxse black, tibise silvery sericeous; abdomen black, 

 basal segment with a silvery sericeous pile; narrow apical margin of first seg- 

 ment and second segment except basal margin reddisli-fulvous, apical margin 

 of remaining segments pale testaceous, apical segment silvery. Length .45 

 inch. 



One speciilien. (Coll. G. W. Belfrage.) May be the % of <ih- 

 dominalis, Say, although the legs are fulvous. 



TRANS. AMER. ENT. SOC. IV. (2S) NOVEMBEU, 1S72. 



