Been from New ^lexico. 403 



trianp:ular, without :i rim, very feeble, lonp^itiwlinally plicate 

 at the side^ of the extreme base; teguhe dark tcs-taceous ; 

 wings hyaline, faintly but quite iiuticeably smoky at apex ; 

 nervures dark brown, stigma l)laek ; third submarf^inal cell 

 lonj;, narrowed more than half to marginal; legs bliek, with 

 pale pubeseenee ; small joints of tarsi clear ferruginous ; bas;il 

 joint of middle tarsus broadened ; spurs white ; abdomen 

 rather broail, microscopically tessellate, with a sericeous 

 lustre J all the segments with apical bands of long white 

 hair, that on the first very thin, on the others very dense ; 

 apical pubescence also white. 



Ilah. San Ignaeio (between Las Vegas and Beulah), N. M., 

 Sept. J, 18119 {}VUmaite Pvrter). 



Closely related to ^1. nubecula, Smith, but the cloud at the 

 apex of the wings is not nearly so dark, the first abdominal 

 segment has a hair-band (wanting in nubecula), and the size 

 is a little larger. Perhaps it is only a geographical race of 

 A. nubecula, which inhabits Canada and the U. S. east of 

 the plains, coming as far west as Lincoln, Nebraska, whence 

 1 have specimens collected in iVugust and September, sent by 

 Prof. L. Bruner. The type S})ecimen of u4. xanthigera has 

 the sides of the metathorax and the hind femora and tibite 

 heavily loaded with orange pollen, doubtless gathered from 

 one of the Compositaj. A Lincoln nubecula is loaded in 

 exactly the same way. 



Andrena alhovirgata, sp. n. 



? . — Length about 7^ millim. 



Similar to A. xanthigera, but differing in the basal process 

 of the labrum having only a shallow gently rounded emar- 

 gination ; the stigma light brown; the wings not clouded at 

 apex; the first abdominal segment with the band thinner or 

 reduced to some scattered hairs ; the shining disk of mcso- 

 thorax with weaker excessively minute punctures. 



Hab. San Ignaeio, N. M., Sept. 1, 1899; two {WUmatte 

 Porter). They carry a very small amount of orange-yellow 

 pollen. 



Andrena apacheorum, Ckll., 1897, var. a. 



? . — Length about 9^ millim. 



Black, with dull white pubescence, except at the apex of the 

 abdomen, where it is grei/ish brown, and on the tibiaj and 

 tarsi, where it is mostly brownish grey. Facial quadrangle 

 broader than long ; vertex dull and granular ; front striated ; 

 antennae obscurely l)rown beneath towards tips; clypeus 



2b* 



