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Andrena mariposorum Viereck, 1917
Life   Insecta   Hymenoptera   Apoidea   Andrenidae   Andrena


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Overview
Reprinted from Viereck, H.L. 1917. New Species of North American Bees of the Genus Andrena Contained in the Collections ofthe Academy of Natural Sciences of Philadelphia. Transactions of the American Entomological Society 43: 365-407. The copyright on this work has expired.

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TYPE. � No. 4050, The Academy of Natural Sciences of Philadelphia.

TYPE LOCALITY. � Southern California. (H. K. Morrison.)

Related to A. (A.) salicinella Cockerell, of which it may prove to be a race. Professor Cockerell, who compared the type with a topotypic specimen of A. (A.) salicinella Cockerell, says that in A. (A.) mariposorum the wings are longer, sculpture of clypeus not the same, etc. He avers that it is possibly a subspecies only.

FEMALE. � Length 8.5 mm.; body black, mostly covered with whitish hairs, head with its facial line : transfacial line : : 47: 59, axial line : temporal line : : 22:14, malar line : joint 3 of antennae :: 1:7, ocelloccipital line : greatest diameter of lateral ocellus :: 3: 4.5, elevated portion of malar space virtually wanting, head covered with whitish hairs, front distinctly, longitudinally striate, not elevated into a welt along the fovea, fovea at most : ocellocular fine :: 6:11, foveal band represented at upper end of the inner eye margin by a bevelled, bare space, distance between fovea and ocelli : ocellocular line :: 5:11, fovea somewhat attenuated below its middle, and continued to a plane apparently half way between the clypeal and antennal line, fovea filled with pale ochreous or golden hairs, fovarea wanting, vertex and temples along the upper edge of the eye with whitish hairs, face brownish, shiny, finely reticulate, with indistinctly defined punctures that are mostly from two to four puncture widths apart, clypeus virtually not at all elevated above the apical margin, nearly planate, brownish and blackish, sculptured like the face except that the punctures are larger and well defined, clypearea present but poorly defined and finely reticulated, clypeus thinly hairy, its sculpture not at all hidden by hairs, labrarea with its anterior margin convex, its width at base : length down the middle :: 10: 3, labrarea at base : distance between lower corners of clypeus :: 10:17, labrum with a fringe of golden hairs and without a median longitudinal crista between its apical edge and the labrarea, joint 3 of antennae : 4 5 :: 7:6, joints 4 to 9 inclusive thicker than long, the succeeding joints a little longer than thick except joint 12 which is distinctly longer than thick, antennae brownish except for the blackish scape, mandibles typical, robust, not over lapping, reddish except for the basal fourth which is blackish, palpi nearly typical; thorax thinly covered with whitish hairs which are shorter on the dorsulum than the whitish hairs on the mesopleura, dorsulum dullish, finely reticulated and punctured like the face but more distinctly and densely so, notauli represented by a shallow impression, mesopleura sculptured somewhat like the face but more shiny and not so distinctly punctured, scutel hairy and sculptured much like the dorsulum except that the sculpture is not so dense and the surface more shiny, partly almost polished, metanotum hairy and sculptured much like the dorsulum except that the sculpture is denser and indistinct, tegulae brownish stramineous, nearly polished, wing base dull stramineous, subcosta dark brownish stramineous, stigma pale yellowish stramineous, with its lower margin brownish; rest of veins dull stramineous, mostly somewhat paler than the stigma, without a blackish tinge, first recurrent vein received by the second submarginal cell beyond the middle and nearly as near to the second transverse cubitus as the first transverse cubitus is to the stigma on the radial vein, nervulus interstitial and forming an acute angle with the first abscissa of the discoidal vein, membrane uniformly with a dark tinge, nearly colorless, legs dark brown except for the tarsi and hind tibiae which are more or less pale brownish stramineous, legs covered with whitish and pale golden hairs, scopa nearly typical, its hairs whitish throughout, hind metatarsi at most apparently as wide as the middle metatarsi ; propodeum with its enclosure poorly defined, dullish and finely reticulated except for a nearly radiate network of fine carinae along the basal margin, rest of upper face of propodeum sculptured somewhat like the metanotum and covered with fine whitish hair, propodeal pleura very shiny, delicately reticulated and with a few, very small scattered, shallow punctures and more or less hidden by the whitish floccus; abdomen with its tergum shiny, finely reticulated and indistinctly punctured, the punctures from two to four or more puncture widths apart on the first tergite, the punctures not so close on the succeeding tergites, second, third, and fourth tergites with an apical, whitish hair band that is interrupted in the middle of the second, apical edge of first, second, third, and fourth tergites with a stramineous border, second tergite with its elevated portion down the middle : depressed portion :: 11: 8, fifth tergite shiny, reticulate, its punctures more evident than on the other tergites, pygidium nearly planate, without a shallow furrow on each side, nearly truncate at apex, tergum with inconspicuous, pale appressed hairs in addition to the hair bands, fimbria pale ochreous or pale golden.

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