82 Mr. T. D. A. Cockerell on Bees of the 



Thorax quite densely clothed with fulvous pubescence, as in 

 Jessicce ; mesothorax and scutellum with close large punc- 

 tures, the surface between the punctures smooth though 

 rather dull, not tessellate as in Jessicce. Metathorax closely 

 pitted or subcancellate all over, with no defined enclosed 

 space. Tegulse shining amber-colour. Wings smoky 

 hyaline, yellowish towards base, costa broadly suffused with 

 fuliginous, the region of apex darkest ; nervures ferruginous, 

 the outermost fuscous, costal nervure black, stigma ferru- 

 ginous. Third submarginal cell narrowing about half to 

 marginal, but variable. Legs ferruginous, with short fulvous 

 pubescence ; trochanters black ; femora largely suffused with 

 black basally and beneath, middle femora incrassate. Abdo- 

 men fairly stout, strongly and closely punctured, with short 

 fulvous pubescence clothing the whole dorsum, not obscuring 

 the ground-colour, not forming distinct bands. First segment 

 black, with the apical margin ferruginous ; second segment 

 ferruginous, with a large oval black mark at each extreme 

 side ; remaining segments black, with the hind margins 

 broadly ferruginous. Venter ferruginous, with two black 

 spots on third and broad black bands on fourth to sixth 

 segments. Sometimes there is much less black on venter and 

 the third segment above shows less black. 



? . Closely similar. Clypeus dull honey-yellow, with 

 large punctures, smooth medially. Second joint of flagellura 

 wholly ferruginous. Pubescence of thorax short and sparse, 

 lateral margins of metathorax with a conspicuous fringe of 

 whitish hairs. Tubercles slightly stained with ferruginous. 

 Femora with scarcely any black. Trochanters partly ferru- 

 ginous. A tuft of dull white hairs at base of hind legs. 

 Hind tibiai incrassate. First segment of abdomen only 

 black at extreme base and at sides ; second segment with 

 very small lateral spots ; third segment only narrowly black 

 at extreme base. Anal fimbria shining coppery. Punctua- 

 tion of abdomen finer than in the male. Segments 2 to 5 

 with distinct hair-bands. 



Hah. Three specimens at Las Cruces, N. M., viz. : — ■ 

 (1) middle of April, 1894, collected by Miss Agnes Williams, 

 a female ; (2) on flowers of plum. College Farm, April 9, 

 1895, male; (3) on flowers of plum, March 26, 1896, male. 



This shows much superficial resemblance to Nomia neva- 

 densis, which is common at Las Cruces, but flies in August 

 and September. A. prunorum is doubtless closely related to 

 the Texan A. malliventris^ Cr., but that has black legs and 

 the antennai are dilFerently coloured, as also is the abdomen. 

 It is also near to A. fastuosa, Sm., but differs in the colour of 



