366 
NEW NORTH AMERICAN BEES 
succeeding joints from distinctly thicker than long to shghtly thicker than 
long, except joint 12 which is distinctly longer than thick, antennae blackish 
brown throughout, mandibles typical, robust, extending to the .outer edge of 
the labrarea, black except for the apical third which is clear dark reddish, 
palpi nearly typical; thorax covered with an abundance of whitish hairs which 
are shorter on the dorsulum than on the mesopleura, dorsulum dullish, greenish 
and purplish, finely reticulated and sparsely punctured, the punctures wdder 
apart than on the clypeus, notauli represented by a shiny line, mesopleura 
sculptured much hke the dorsulum but not so closely or distinctly punctured, 
scutel shiny, hairy, colored and sculptured much like the dorsulum but feebly 
so, metanotum hairy and sculptured and colored like the dorsulum except that 
the sculpture is denser and less distinct, tegulae pale yellowish stramineous, 
polished, wing base dull yellowish stramineous, subcosta broviTUsh, stigma 
pale yellowish stramineous, rest of veins almost concolorous with the stigma 
but not so yellowish, the wing hairs pale golden, first recurrent vein received 
by the second submarginal cell before the middle and a little more than twice 
as far from the first transverse cubitus as the latter is to the stigma on the 
radial vein, nervulus not interstitial, received by the median cell and forming 
an acute angle with the second abscissa of the median vein, membrane with a 
uniformly yellowish tinge, nearly colorless, legs dark brown except for the tarsi 
and hind tibiae which are more or less yellowish stramineous, legs covered with 
pale hairs, scopa typical, its hairs whitish throughout, hind metatarsi at most 
apparently a httle wider than the mid metatarsi; propodeum with its en- 
closure poorly defined, shiny and rather coarsely sculptured on its upper aspect, 
finely reticulated on its hind aspect, rest of upper face of propodeum sculptured 
somewhat like the mesopleura but seemingly impunctate, and covered with 
finer hair, propodeal pleura shiny, finely reticulated, with a few scattered 
shallow punctures; abdomen brownish with a slight greenish tinge, with its 
tergum shiny and sculptured much like the sides of the propodeum but with 
smaller inconspicuous punctures, the punctures from two to six or more punc- 
ture widths apart on the first tergite, the punctures hardly closer on the suc- 
ceeding tergites, second, third and fourth tergites with an apical, whitish hair 
band that is interrupted in the middle of the second and third, apical edge of 
first, second, third and fourth tergites wdth a pale stramineous border, second 
tergite with its elevated portion down the middle : depressed portion :: 14: 6, 
fifth tergite shining, reticulate, its punctures distinct and closer together than 
on the other tergites, pygidium nearly planate, somewhat concave, reticulate, 
narrowly truncate at apex, tergum with inconspicuous pale, nearly erect 
hairs in addition to the hair bands, fimbria pale golden. 
Andrena (Andrena) albiculta^ new species 
Type— 'No. 4045, The Academy of Natural Sciences of Phila- 
delphia, Type locality. — Southern California. (H. K. Morri- 
son.) 
Related to A. (A.) decussata Viereck. 
* The above specific name was proposed for this species by Prof. W. M. 
Davis. 
