HYMENOPTEBA ANDEENIDAE. A. MELLIVENTRIS. 721 



short, dense, griseous pubescence ; abdomen rather short, ovate, convex, 

 smooth, and shining ; base and sides with a long, thin, griseous pubescence ; 

 second, third, and fourth segments each with a broad band of short, dense, 

 white pubescence ; anal rirna fulvous. Length, 4 lines. (Trans. Am. Ent. 

 Soc., 1875.) 



1 specimen ; Eastern Nevada; 1872; Dr. H. C. Yarrow. 



94. UALICTCS DISPAEIL1S. 



Halictits disparilis, CRESS., Trans. Am. Ent. Soc., iv, 253. 



2 9 specimens; Eastern Nevada; 1872; Dr. H. C. Yarrow. 



95. AGAPOSTEMON TEX AN US. 

 Agaposlemon texanus, CRESS., Trans. Am. Ent. Soc., iv, 255. 



6 9 specimens; Colorado, New Mexico; Dr. H. C. Yarrow, Dr. Oscar 

 Loew. 



96. AGAPO3TEMON TRICOLOR. 

 Agapostemon tricolor, ST. FAEG., Hym., ii, 289. 



14 J 1 specimens; Eastern Nevada ; 1872: Colorado; Dr. H. C. Yarrow : 

 New Mexico ; Dr. H. C. Yarrow ; H. W. Henshaw ; Dr. Oscar Loew. 



97. AGAPOSTEMON MELLIVENTEIS, sp. nov. 



PLATE XXXIII, FIG. 4. 



9 . Golden-green, very densely punctured, clothed with a pale ochra- 

 ceous pubescence ; anterior margin of clypeus, and mandibles except tips, 

 which are black, yellow ; antennae black ; scape at base and beneath pale 

 yellow ; flagellum testaceous beneath ; metathorax coarsely reticulated, 

 sometimes tinged with blue, the truncate apex inclosed by a neaiiy semi- 

 circular carina ; tegulse pale yellow; wings pale yellowish-hyaline ; nervures 

 pale ; legs yellowish, with pale ochraceous pubescence ; coxse and base of 

 femora black, more or less tinged with green ; abdomen ovate, clothed above 

 with a short, pale sericeous pile, very dense at base of the segments ; the 

 fourth segment has a narrow, black band across the middle, and the follow- 

 ing segment more or less tinged with black ; beneath, the apical segments 

 are more or less blackish. Length, 4 lines. (Trans. Am. Ent. Soc., 1875.) 



3 specimens. Easily recognized by the green head and thorax and the 



fulvous abdomen. 

 46 z 



