Genus Andrena found in Neio Mexico. 91 



transversely lineolately sculptured, basally longitudinally 

 wrinkled. Tegulfe shining piceous. Wings hyaline, with a 

 very faint yellowish tinge, outer margin broadly tinged smoky ; 

 nervures and stigma pale ferruginous, costal nervure black. 

 Second subraarginal cell broad, little narrowed above, receiving 

 the first recurrent nervure at its middle. JMarginal cell 

 blunt at tip, minutely appendiculate. Legs black ; femora 

 with long but thin white pubescence ; hairs of iinrer surface 

 of tarsi shining rufous. Claws rufescent. Abdomen coal- 

 black, with fairly close, very small punctures j apex with 

 fuscous hairs. 



Hah. College Farm, Mesilla Valley, N. M., on flowers of 

 plum, March 26, 1896. 



This insect at once reminds one of the male of A. vicina^ 

 Sm. {lurticepSj Sm.), but it differs in being a little larger, in 

 the colour of the pubescence, the sculpture of the meta- 

 thorax, &c. 



{d) Small species. 



It is proposed to discuss these, as also a species with a blue 

 abdomen [A, cerasifolii^ sp. n.), in a separate article. 



The types of all the new species described will be placed 

 in the U.S. National Museum ; it is hoped to send co-types 

 to the British Museum and Coll. Amer. Eiitom. Society. 



Las Graces, New Mexico, U.S.A., 

 April 30, 1890. 



Postscript. 

 Pkotandkena, gen. no v. 



Since writing the account of the New Mexico species of 

 Andrena 1 have become acquainted with three other species 

 congeneric with A. ascJepiadis and A. mexicanorum ; and a 

 renewed study convinces me that I have to do with a perfectly 

 valid new genus, which I will call Protandrena. Mr. Fox, of 

 Philadelphia, to whom I sent two of the species, also agrees 

 that the genus is quite distinct from Andrena. In addition 

 to the characters I have cited when describing the species, I 

 may add the following, based on an examination of 

 P. maurula : — 



Tongue short and broad, gradually coming to a point, 

 narrower at end than in Andrena, but not nearly so narrow 

 as in Halictus (see figures given by Mr. E. Saunders, Journ. 



