Reprinted from Viereck, H. L. 1916 (1917). New species of North American bees of the genus Andrena from weat of the 100th meridian contained in the collections of the Academy of Natural Sciences of Philadelphoa. Proceedings o the Academy of Natural Sciences of PHiladelphoa. 68 (3): 550-608. The copyright on this work has expired.
TYPE. — No. 4,013. The Academy of Natural Sciences of Philadelphia.
TYPE LOCALITY. — North Yakima, Washington, May 20, 1903 (Eldred Jenne, No. 60).
Presumably related to A. (A.) runciate Cockerell.
MALE. — Length 8 mm.; body black, mostly covered with pale ochreous or whitish hair; head with its facial line : transfacial line :: 48 : 67, axial line : temporal line :: 34 :23, temples produced into a near carina-like welt and with a rounded nearly right angle below the middle of the eye, and an obtuse rounded angle above the middle of the eye, malar line : joint 3 of antennae :: 1 : 8, elevated portion of malar space nearly wanting, head covered with whitish hairs throughout, front dullish shining, rather coarsely, sparsely striate, ocellocular line : ocelloccipital line :: 16 : 5, face shining nearly polished, faintly reticulated and distinctly punctured, the punctures mostly from one to two puncture widths apart, clypeus planate, not elevated directly above the apical margin, sculptured much like the face but more nearly polished, clypearea wanting, sculpture of the clypeus not hidden by the moustache, labrarea subemarginate, width at base : length down the middle :: 8 : 3, width at apex : length down the middle :: 4 : 3, labrarea at base apparently a little more than half as wide as the labrum, the latter with a fringe of golden hairs, joint 3 of antennae : 4 :: 8 : 4, joint 4 a little thicker than long, joint 5 and following joints distinctly longer than thick, antennae dullish, flagel, straight in outline, antennae blackish throughout, mandibles typical, slender, extending beyond the outer edge of the labrum, black except for the apical fourth which is dark reddish, palpi nearly typical; thorax covered with an abundance of pale ochreous or whitish hairs, hairs of dorsulum nearly as long as hairs of mesopleurae, dorsulum dullish, sculptured much like the face but not so distinctly or closely, notauli represented by a shining line, mesopleurae with pale ochreous hairs throughout, finely reticulated and mostly covered with shallow pits, mush like the dorsulum, scutel hairy and polished with a few punctures that are smaller than on the dorsulum, metanotum hairy and sculptured much like the dorsulum except that the sculpture is denser, tegulae dark brownish stramineous, polished, wing base mostly dark brown, subcosta dull light brownish stramineous, stigma bounded by yellowish stramineous veins, its membrane concolorous with the subcosta, rest of veins concolorous with the veins bounding the stigma, membrane pale with a faint brownish tinge, recurrent vein received by the second submarginal cell beyond the middle and a little nearer to the second transverse cubitus than the first transverse cubitus is to the stigma on the radial vein, nervulus nearly interstitial, received by the median cell, forming an acute angle with the first abscissa of the median vein, legs blackish brown excepting the tarsi and hind tibiae which are rather pale brownish stramineous, legs covered with pale ochreous hairs, hind metatarsi at most hardly wider than mid metatarsi and nearly half as wide as hind tibiae at apex of the later; propodeum with its enclosure poorly defined, irregularly coarsely rugose, rounded at apex, rest of upper face indefinitely punctured and coarsely irregularly sculptured between the punctures, covered with pale ochreous hair, propodeal pleurae shining, finely reticulated along the lower and anterior margin, elsewhere with a loose network of fine rugae in the interstices of which the integument is indistinctly reticulate and punctured, partly nearly hidden by pale ochreous hairs; abdomen with its tergum nearly polished and finely punctured, the punctures sparsest on the depressed portion of the first tergite, second, third and fourth tergites uniformly sculptured, partly finely, indistinctly reticulate, with their punctures two to six or seven puncture widths apart, second tergite with its elevated portion down the middle : depressed portion :: 16 :7, fifth tergite with its basal blackish portion covered with poorly defined punctures that are as many as six puncture widths apart, depressed portion of tergites brownish with an apical whitish edge, anal process entire, truncate, dark brownish at apex, tergum with rather conspicuous pale ochreous hairs that are supplemented on the sides of the second, third and fourth tergites by thin pale ochreous apical hair bands, hair at apex of abdomen pale ochreous. In manipulating the head with a pair of forceps in order to get a better view of the labrarea the clypeus was almost symmetrically impressed.
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