TEXAN HYMENOPTERA. 261 



segments, all the segments have at base a very short brownish-sericeous pile, 

 more obvious in perfectly fresh specimens; first segment deeply notched at 

 base, the second and third segments slightly depressed at base. Length .25 

 inch. 



Four specimens. (Belfrage.) 



Paiiurgii»« picipes, n. ep. 



•^ . — Deep black, with large sparse punctures and clothed rather thickly 

 with a short griseous pubescence; sides of face and clypeus lemon-yellow; 

 mesothorax with a well-impressed central line; metathorax sculptured as in 

 ornatipes; tubercles black ; tegulae brown, paler on outer margins; wings hya- 

 line, iridescent, very faintly dusky at apex, marginal cell truncate at tip; legs 

 I>iceous, with pale pubescence, knees and tarsi brownish-testaceous; abdomen 

 as in ornatipes, except that there is no brown sericeous pile and the depressed 

 polished apical margin of the segments are piceous, the second, third and fourth 

 segments ai-e constricted at base, the pubescence pale. Length .20 inch. 



Two specimens. (Belfrage.) 



Perdita? albipennis. 



I'erdita f albipennis, Cress. Trans. Am. Ent. Soc. ii., p. 386. 

 One specimen. (Belfrage.) 



Osmia lignaria. 



Osinia lignaria. Say, Bost. Journ. Nat. Hist, i., p. 399. 

 Three specimens. (Boll.) 



Ovinia chalybea. 



Ostnia chalybea, Smith, Brit. Mus. Cat. i., p. 143. 

 One 9 specimen. (Belfrage.) 



Osniia texana, n. sp. 



■J,. — Dark green or blue-green, head and thorax densely and strongly 

 punctured, clothed with pale pubescence ; head rather large, subquadrate, 

 face, clypeus, occiput and cheeks clothed with long pale pubescence, very 

 dense on clypeus; thorax thinly clothed with a long pale pubescence; scutel- 

 lum sparsely punctured; tegulpe piceous; wings subhyaline, dusky at apex, 

 upper half of marginal cell fuliginous; legs black, punctured, clothed with pale 

 pubescence; abdomen dark green, shining, rather closely, finely punctured, 

 clothed with a short scattered pale glittering pubescence, long and more dense 

 on basal segment, apical margin of sixth segment reflexed and subsinuate 

 medially, apical segment bidentate at apex. Length .40 inch. 

 Two specimens. (Belfrage.) 



Osiiiia subfai^ciata, n. sp. 



9 . — Dark blue, closely and strongly punctured; head large, subquadrate 

 sides of face and cheeks clothed with long pale pubescence, apex of clypeus 

 and mandibles with short ochraceous pubescence; thorax above thinly clothed 

 with a short, pale pubescence, that on metathorax and pleura longer and more 

 dense; tegulse piceous; wings subhyaline, pale fuscous at apex and in mar- 

 ginal cell; legs black, clothed with pale pubescence; abdomen convex, the 

 three basal segments more finely and less closely punctured than thorax, the 



