Oct.,1917 Bulletin of the Brooklyn Entomological Society 91 



thoracic hairs, complete abdominal fasciae, and many minor char- 

 acters readily distinguished the species. 



Named in honor of Nathan Banks, who submitted the first 

 examples of the species which I had seen. 



Type and allotype in collection of Illinois State Laboratory of 

 Natural History ; paratypes in collections of Nathan Banks and 

 U. S. Bureau of Biological Survey. 



Andrena regularis n. sp. Male. — Black, distinctly shining. A few brown- 

 ish black hairs along inner margins of eyes, on vertex, and behind upper 

 angle of eyes, remainder of hairs of head, those of thorax, and those of 

 abdomen whitish gray. Legs black, hairs whitish except on under sur- 

 faces of basal tarsal joints and inner surface of hind tibiae, where they 

 are brownish. Wings slightly brownish on apices, veins yellow. 



Head about one seventh broader than high; third antennal joint one 

 fourth longer than fourth and subequal to fifth ; clypeus glossy on disc, 

 shagreened on margins, discal punctures of moderate size, very regularly 

 distributed, no impunctate ventral line present; cheek distinctly broader 

 than eye, rounded posteriorly; malar space narrow, punctate; mandibles 

 long, curved, simple at base, with a weak preapical inner tooth; process 

 of labrum truncate, rather broad. Thoracic hairs long and rather dense ; 

 metat'horacic enclosure finely rugose. Abdomen with sparse, fine punc- 

 tures and short, upright hairs ; apical ventral segment tapering on its 

 apical two thirds, with a rather sharp ventral production at one third from 

 apxe, and from this point caudad covered with dense hairs, apex stout, 

 slightly fishtail-shaped ; hypopygium stout, dorsal processes of the stipites 

 stout, contiguous nearly to their apices, then widely and suddenly diverg- 

 ing, terminating in a rounded point. 



Female. — Very similar to carlini Cockerell, differing in having the cly- 

 peus with small, rather widely spaced, regular punctures. 



Head with pale hairs on center of face and behind vertex, remainder 

 of surface with brownish to black hairs. Dorsum of thorax and upper 

 half of pleurae with long pale hairs, remainder of surface with black hairs. 

 Abdomen with black hairs which are short except at apex. Hairs of legs 

 black, femoral hairs sometimes pale. Wings as in male. 



Clypeus much less conspicuously punctured than in male ; f oveae broad, 

 descending below lower margins of antennal sockets, narrowly separated 

 from eyes. Metathoracic enclosure granulose except at base. Scopae of 

 hind tibiae simple on outer side ; tarsal claws long, bifid. Otherwise as 

 male. 



Length : male, 10-12 mm. ; female, 12-14 mm- 



Type locality, Ithaca, N. Y,, April 26 to June 6. A very 

 large series of both sexes submitted by Dr. J. C. Bradley from 

 Cornell University collection. Type and paratypes in the latter 



