242 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.45. 



Type-locality.—West Point, Nebraska. 



Type.—Csit. No. 15299, U.S.N.M. 



One specimen taken on September 6, 1912, flying around Physahs 

 and other low weeds. (J. C. Crawford, collector.) 



This species is the size of P. Jieteromorpha Cockerell, but that species 

 IS more shining, has the mandibles with a yellow mark, a large clypeal 

 mark, process of labrum broadly rounded apicaUy and the sides con- 

 vex; the punctures of the mesonotum fine, of the abdomen somewhat 

 sparser and with the sculpture of the third segment hke that of 4 and 

 5 rather than 1 and 2. 



This species is named in honor of Prof. Myron H. Swenk, in recog- 

 nition of the fine work which he is doing on the bees of Nebraska. 



AUGOCHLORA MACULIVENTRIS, new species. 



Female.— Length about 6 mm. Head and thorax green, abdomen 

 brown; face with white, subappressed pubescence, closely and very 

 finely punctured above antennae, below more hke the fine reticula- 

 tions and on clypeus and supraclypeal area more so than on sides of 

 face; supraclypeal area with a median smoother area; clypeus along 

 anterior portion with a yellowish mark which medially extends up- 

 ward to a point; the maculate portion with large punctures, the rest 

 reticulate and with a few fine scattered setigerous punctures; meso- 

 scutum finely closely punctured but ahnost concealed by the short 

 erect subappressed yellowish pubescence; tubercles yeUow; tegulse 

 testaceous; scutellum and metanotum with pubescence similar to 

 that on mesoscutum; dorsal surface of propodeum long, angularly 

 separated from sides and truncation and with very fine thimble-hke 

 punctures, the posterior margin medially notched; this notch at the 

 head of the furrow on posterior face; lateral angles of truncation weU 

 rounded; wings sHghtly dusky and with the apical margin distinctly 

 darkened; stigma fight brown, veins fighter; second submarginal 

 sfightly shorter than the third, receiving the recurrent nervure just 

 before apex, and narrowed almost one-half anteriorly; mesopleurae 

 with sculpture similar to that on propodeum; legs brown, anterior 

 tibige mostly yellow and with a narrow darkened stripe; inner hind 

 spur with about 4 long teeth; abdomen finely sericous; second seg- 

 ment with a triangular spot at base on each lateral margin, the spot 

 extending along lateral margin for a greater cHstance than the width 

 at base; third segment with a transverse spot at each side almost 

 meetmg medially, fourth and fifth segments with complete bands, 

 that on fifth segment often concealed by the retraction of the seg- 

 ment. 



Habitat. — Coroico, Yungas, BoHvia. 

 Type.— Csii. No. 15317, U.S.N.M. 



