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 9-12 mm.; lateral ocelli considerably nearer margin of vertex than to each other; cheeks fully as broad as eyes, posterior margin sharply carinate; longer side basal segment of flagellum equal to segment 2, median segments considerably longer than broad; mandibles slender and simple; wings subhyaline basally becoming rather deeply infuscated along outer margin and in marginal cell, with the usual three submarginal cells, 2nd very much broader than 3rd anteriorly, veins testaceous to piceous, basal vein nearly interstitial with transverse median; tegulae shining, punctures exceedingly minute and sparse, barely evident along inner margin; pronotal collar rather sharply carinate, lateral angles distinct; posterior margin scutellum only very slightly impressed medially; front coxae not spinose; apex of hind tibiae with two or three rather short but very robust spine-like bristles and a pair of more slender and elongate, setae-like bristles; clypeus, labrum and mandibles testaceous, eyes completely encircled with a testaceous band, this broader above, nearly meeting ocelli; broad median area of face to clypeal margin, vertex, area around ocelli, and posterior two- thirds of cheeks, black; antennal scape and base of flagellum testaceous, following segments brownish-testaceous below, more piceous above; scutum, scutellum and pleura largely ferruginous, prothorax laterally, metapleura, and propodeum in large part, black; scutum somewhat blackened along anterior margin and with a median, rather broad, black band; mesopleura black beneath and with a very limited black area below wing bases; posterior face of propodeum with some vague, pale maculations evident; coxae largely black, becoming somewhat testaceous apically, front and middle trochanters testaceous, hind trochanters and all the femora more or less piceous, becoming to some degree ferruginous or testaceous apically, tibiae and tarsi reddish-testaceous, spurs pale yellow; abdominal terga largely ferruginous, tergum 1 piceous at base and somewhat darkened along apical margin; tergum 2 with broad, lateral, yellow maculae which are widely separated; tergum 3 with a similar but much smaller pair of maculations, and 4 and 5 without maculae; abdominal sterna largely testaceous, without maculations; punctures of face coarse and deep, well separated above antennae, sometimes widely so, becoming finer and closer on supraclypeal area, clypeus shining, with barely visible, minute, slightly separated punctures; vertex coarsely and rather sparsely punctate medially, very minutely and quite sparsely so between ocelli and eyes, the surface shining, cheeks minutely punctate above, becoming rather dull and vaguely reticulate below; scutum shining between deep and distinct punctures, these quite coarse and well separated medially, especially toward posterior margin, somewhat finer and closer laterally; scutellum shining, punctures coarse, deep, irregular and quite sparse; pleura very coarsely reticulate above, punctures becoming somewhat more distinct beneath; propodeum quite finely and shallowly rugose, lateral faces becoming rather smooth below, triangle smooth and impunctate below, becoming rather coarsely striate along upper margin; discs of abdominal terga with minute, slightly separated punctures, tergum 1 practically impunctate and shining, the depressed, apical margins of the following terga rather broadly impunctate, invaded only slightly by scattered, minute punctures; pseudopygidium extensive, covering about half the median length of the disc of tergum 5, median length about half its apical width, apex slightly incurved, surface densely covered with minute, silvery tomentum, visible only at certain angles; pubescence short, in part erect, head and thorax with fine, subappressed, pale pubescence and scattered suberect, somewhat darker hairs, surface not obscured; abdomen dorsally with hardly evident pubescence, sterna with only scattered somewhat elongate, very fine pale hairs, sternum 5 apically with a fringe of stout, curved, convergent hairs on each side of mid-line.
MALE—Length 9 mm.; lateral ocelli considerably nearer margin of vertex than to each other; cheeks nearly as broad as eyes, posterior margin sharply carinate; antennal scape somewhat swollen, apex deeply excavated and completely enclosing pedicel, basal segment of flagellum much shorter than segment 2, the shorter side no longer than the apical width, median segments somewhat longer than broad; mandibles slender and simple, outer margin with a slight angle at basal third; wings hyaline basally becoming lightly infuscated along outer margin and in marginal cell, with the usual three submarginal cells, 2nd much broader anteriorly than 3rd, veins and stigma testaceous, basal vein very slightly basad of transverse median; tegulae shining, punctures exceedingly minute and sparse; pronotal collar sharply carinate, lateral angles distinct; posterior margin of scutellum rather deeply grooved medially; front coxae not spinose; hind femora slender and unmodified; clypeus, labrum, base of mandibles, and narrow, lateral, facial maculae, bright yellow, the maculae ending narrowly but rather abruptly at level of antennae on eye margin; upper margin of clypeus very narrowly blackened, and entire face, vertex and cheeks otherwise black; antennal scape bright yellow anteriorly, becoming piceous posteriorly, basal segment of flagellum testaceous, the following segments more brownish-testaceous beneath, piceous above; tubercles testaceous, tegulae somewhat more yellowish; scutellum dull reddish posteriorly and above, thorax otherwise black; abdominal tergum 1 piceous basally, becoming somewhat more reddened apically; tergum 2 with a pair of lateral, very large, bright yellow maculae which are widely separated, otherwise ferruginous, and tergum 3 ferruginous, with a pair of similar but smaller lateral maculations; terga 4 and 5 somewhat more piceous, the broad, apical margins more or less yellowish-hyaline, 6 somewhat more testaceous; basal abdominal sternum piceous, the following sterna more testaceous, with some piceous infusions; face and vertex coarsely, deeply and rather closely punctate, punctures below antennae somewhat more shallow and vague, maculated areas smooth and shining, with hardly evident punctures, and punctures of clypeus extremely minute and barely visible; cheeks rather closely, shallowly and quite finely punctate, becoming somewhat more deeply so beneath; scutum coarsely and deeply rugoso-punctate medially, becoming more definitely rugose anteriorly and laterally; scutellum shining between coarse, deep and well separated punctures; pleura very coarsely reticulate above, becoming somewhat more distinctly and finely punctate below; propodeum more finely reticulate, lateral faces becoming rather smooth below and anteriorly, triangle smooth below, becoming rather coarsely striate across upper margin; abdominal tergum 1 impunctate laterally and basally, with some barely evident, minute, well separated punctures medially; discs of the following terga very finely and rather closely punctate, the impressed apical margins largely impunctate, invaded only slightly by scattered minute punctures, the more apical terga becoming somewhat more coarsely, deeply and sparsely punctate apically; pubescence entirely pale, very thin above, somewhat more copious on head beneath and on thorax laterally and beneath, barely- evident on abdomen dorsally, sterna with very fine, scattered, suberect, pale hairs, sternum 6 becoming rather densely short pubescent toward apex; median length of pygidial plate about equal to basal width, quite strongly narrowed apically, apex deeply incised, margins carinate, surface finely and rather closely punctate; exposed sternal plates unmodified; sternum 8 with a slender apical process; gonocoxites of genital armature as shown (fig. 107).
DISTRIBUTION — North Carolina to Connecticut, June and July.
FLOWER RECORD — Galax.
|
