Reprinted with permission from: Mitchell, T.B. 1960 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 141. |
FEMALE—Length 5-6 mm.; black; antennae piceous above, brownish beneath; face marks yellow, triangular, entirely filling area between clypeus and eyes, terminated more or less acutely close to eye margin slightly above antennae; collar with a pair of conspicuous transverse maculae; tubercles and an anterior spot on tegulae yellow, tegulae otherwise ferruginous; wings subhyaline, veins and stigma ferruginous; legs black, with basal third or more of all tibiae yellow; spurs pale yellow; face slightly narrowed below; cheeks and eyes subequal in width in lateral view; foveae deep, distinct, linear and rather long, separated from eye by a slightly wider space, rather markedly divergent from eye above; 2nd and 3rd segments of flagellum broader than long, length and breadth subequal on basal and other segments; front coxae simple; dorsal surface of propodeum sloping, shorter than metanotum, coarsely reticulate, posterior surface more finely reticulate, not carinate laterally, lateral surfaces obscurely punctate below, becoming densely and finely rugose above; metanotum densely and finely rugose; clypeus tessellate. with sparse, very fine and obscure punctures; face above antennae closely, deeply and distinctly punctate; punctures of scutum deep and distinct, close but not crowded, those of scutellum slightly more widely separated but not sparse; pleura dull, tessellate, punctures rather shallow and obscure, about as close as those of scutellum; basal segment of abdomen somewhat shining, nearly impunctate medially, becoming rather closely but very minutely punctate laterally, punctures of following segments quite close but exceedingly minute.
MALE—Length 5-6 mm.; black; antennae piceous above, ferruginous beneath; scape fuscous, maculated; tegulae ferruginous, maculated; wings subhyaline, veins and stigma ferruginous; maculations yellow, as follows:
labrum, upper portion of mandibles, entire face below antennae, supraclypeal mark triangularly pointed above, lateral face marks extending above antennae, very broadly truncate and not divergent from eyes, narrow stripe on outer surface of scape, tubercles, anterior spot on tegulae, two conspicuous maculae on collar, lower surface of front femora, front tibiae in large part, base and apex of mid tibae, these connected by a narrow line on outer surface, basal half of hind tibiae, all spurs and tarsi, but more apical tarsal segments reddened; posterior face of front tibiae ferruginous, legs otherwise piceous; face narrowed below; cheeks and eyes subequal in width in lateral view; scape slender, rather strongly flexed; 1st and 2nd segments of flagellum somewhat broader than long, succeeding segments as long as or longer than broad; front coxae simple; dorsal face of propodeum sloping, no longer than metanotum, posterior face more finely reticulated, not at all carinate laterally, lateral faces somewhat shining and obscurely punctate; punctures of scutum fine, deep and distinct, close but not crowded, those on scutellum and pleura slightly more coarse and sparse; abdomen rather dull, basal segment minutely and quite closely punctured, following segments more tessellate than punctate.
DISTRIBUTION--- Generally distributed through the Eastern United States and Canada from the New England states west to Minnesota and southward to Mississippi and Georgia; April to October.
FLOWER RECORDS—This species visits a wide range of f-lowers, with records in the following genera: 4pocyni’in, Ceanothus, Cephalanthus, Crataegus, Houstonia. Hypericum, Pycnanthemum, Pyracantha, Rhus, Rubus, Salvia, Solidago and Zizia. The following additional genera are listed by Robertson (1929) : Amorpha, Aruncus.
Asclepias, Blephilia, Boltonia. Campanula. Cicuta, Clematis. Comas. Cryptotaenia. Erigeron, Eryngium, Eulophus, Eupatorium, Euphorbia, Fragaria, Geranium, Geum. Gnaphalium, Heracleum, Hydrangea, Krigia. Lactuca, Lepidium, Lycopus, Malva. Nelumbo, Osmorrhiza, Oxypolis, Pastinaca, Petalostemon, Philadelphus, Polygonum, Polytaenia, Potentilla, Ptelea, Salix, Sanicula, Sium, Stellaria, Stenanthiem, Symphoricarpus, Taenidia, Thaspium, Valerianella, Veronica and Viburnum.