402 
NEW NORTH AMERICAN BEES 
Andrena (Scrapter) trapezoidea new species 
Type. — No. 4075, The Academy of Natural Sciences of Phila- 
delphia. Type locality. — Texas. (Belfrage No. 227.) 
Belated to A. (S.) irnitatrix Cresson. 
Female. — Length 7 mm.; body greenish black, mostly covered with white 
hairs with a more or less ochreous tinge; head with its facial line : transfacial 
line 40: 52, axial line : temporal line :: 22: 11, malar line : joint 3 of antennae 
:: 1 : 5, ocelloccipital line : greatest diameter of lateral ocellus :: 5: 3.5. elevated 
portion of malar space virtually wanting, head covered with white hairs, 
front rather indistinctly, longitudinally striate, not elevated into a welt along 
the fovea, fovea at most : ocellocular line :: 6: 9, foveal band wanting at upper 
end of the inner eye margin, distance between fovea and ocelli : ocellocular 
line :: 3: 9, fovea attenuated below its middle where it is apparently only one- 
half or a little more than half as wide as the greatest width of the fovea, the 
latter coTitinued to a plane apparently a little below the antennal line, fovea 
filled with pale, almost white hairs, fovarea wanting, face shiny, finely indis- 
tinctly reticulate, with shallow punctures that are as many as three puncture 
widths apart, clypeus elevated above the apical margin, convex, its basal half 
finely reticulated and with punctures that are three to four or five puncture 
widths apart, its apical half mostly polished and with larger but equally sparse 
punctures as on the basal half, clypearea poorly defined, clypeus thinly hairy, 
its sculpture not at all hidden by hairs, labrarea rounded truncate, its width 
at base : length down the middle :: 7: 2, width at apex : length down the middle 
:: 3:2, labrarea at base : distance between low'er angles of clypeus :: 7: 15, 
Jabrum with a fringe of pale golden hairs, labrum without a median longitudinal 
crista between the labrarea and apical edge of labrum, joint 3 of antennae : 
4+5 : : 5 : 6, joints 4 to 6 thicker than long, the succeeding joints as thick as long 
or a little longer than thick except joint 12 w+ich is nearly twice as long as 
thick, antennae granular, with scape, pedicel, first joint of flagel and rest of 
flagei above more or less dark brown, rest of flagel orange color, mandibles 
typical, robust, extending to the outer lower angle of the clypeus, reddish 
brown except for the basal half which is blackish, palpi nearly typical; thorax 
thinly covered w'ith almost white hairs that are nearly as long on the dorsu- 
lum as on the mesopleura, dorsulum nearly polished, purplish, finely reticu- 
lated and punctured like the clypeus, notauli represented by a shiny line, 
mesopleura with whitish hairs, densely reticulated and with shallow' indefinite 
punctures, scutel hairy, polished and sculptured much like the dorsulum, 
metanotum hairy, mostly dullish, reticulated and sparsely punctured, tegulae 
dark brown, polished, wings w'ith three closed submarginal cells, wing base 
brownish, subcosta brownish stramineous, stigma pale yellowish stramineous, 
rest of veins pale dull stramineous, first recurrent vein received by the 
second submarginal cell beyond the middle and farther from the second 
transverse cubitus than the first transverse cuV>itus is from the stigma on 
the radial vein, nervulus interstitial and forming an acute angle with the 
first abscissa of the discoidal vein, membrane almost colorless and with a 
