Reprinted with permission from: Mitchell, T.B. 1962 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 152.
FEMALE—Length 6-12 mm.; lateral ocelli slightly nearer margin of vertex than to each other; cheeks nearly as broad as eyes, posterior margin rather strongly carinate; longer side of basal segment of flagellum somewhat shorter than segment 2, median segments considerably longer than broad; mandibles slender and simple; wings faintly yellowish at base, becoming somewhat more deeply infuscated at apex and in marginal cell, with the usual three submarginal cells, a hyaline area just beyond the 3rd, 2nd much broader anteriorly than 3rd, veins testaceous to piceous, basal vein considerably basad of transverse median; tegulae shining between rather fine but deep and distinct punctures, these rather close along inner margin, becoming very sparse along outer margin; posterior margin of scutellum quite deeply impressed medially; front coxae not spinose; apex of hind tibiae with a row of three or four rather short but stout, spine-like bristles; head and thorax ferruginous, with varying amounts of black between antennae, between the ocelli, along posterior margin of cheeks, mesopleura laterally and beneath. metapleura, mid coxae and adjacent areas of propodeum; legs chiefly ferruginous, the femora more or less piceous basally, spurs pale yellow; abdominal terga ferruginous in large part, tergum 1 with the basal third piceous, 2 and 3 with large, lateral, yellow maculations that are widely separated medially, 4 with a pair of much smaller, sublateral maculations that are nearer to each other than to the extreme lateral margins of the tergum, and 5 with a broad but rather short yellow patch bordering the pseudopygidium; face and vertex rather coarsely and closely rugoso-punctate, cheeks becoming very finely so below, supraclypeal area and clypeus with very fine, closely crowded and rather shallow punctures; scutum and scutellum quite densely and not very coarsely rugoso-punctate, mesopleura somewhat more coarsely rugose above, punctures becoming more distinct but still quite close below; propodeum very finely and densely rugose, triangle rather smooth but dull below, becoming rather broadly rugoso-striate across upper margin; discs of abdominal terga very finely and rather closely punctate, tergum 1 impunctate basally and laterally, and the apical margin narrowly impunctate, depressed apical rims of 2-4 only partially invaded by very minute, scattered punctures; pseudopygidium extremely large, its median length about half that of the entire plate, basal margin strongly arched, apical margin truncate, surface quite smooth, densely clothed with extremely minute, silvery tomentum which is visible only at certain angles; pubescence pale in general but some of hairs on face and on vertex laterally rather dark and erect, otherwise very thin and short, hardly visible on abdomen dorsally, very short, thin and sparse on sternal plates; apex of sternum 5 with a transverse row of piceous, convergent hairs on each side of midline.
DISTRIBUTION—Michigan to Maine, south to North Carolina, April to August.
FLOWER RECORDS—Azalea and Rubus.
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Extracted from: Cockerell T.D.A. (1908). Bees of the genus Nomada, belonging to the group of N. Depressa Cresson. Entomological News.
N. depressicauda T.D.A Cockerell
Length about 8mm; wings reddish, darker apically, with a subapical hyaline patch; stigma clear ferruginous; third antennal joint distinctly shorter than fourth second abdominal segment with a very large bright yellow patch on each side; third, fourth and fifth also each with a pair of yellow marks growing successively smaller and closer togehter.
N. hoodiana Ckll, 1903
Length about 9mm; wings dusky along veins; stigma dark reddish; third antennal joint subequal with fourth; second abdominal segment with small and obsecure yellow spots, the others without yellow
N. depressa Cresson
Length about 8.5mm.; mesothorax light reddish-brown, with median longitudinal black stripe; metathorax red, with median black stripe, sides at base black; as much space between the flattened area and base of segment at sides as the area is wide.
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