Specimens of N. wisconsinensis in Mitchell's collection at NC State were examined. Holotypes of N. fervida and N. wisconsinensis were compared and were found to be nearly identical. Molecular CO1 analyses of several Florida specimens and one Ontario specimen (with the more extensive yellow characterized by N. wisconsinensis) were nearly identical.
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 10 mm.; lateral ocelli subequally distant from margin of vertex and each other; cheeks narrow, less than half width of eyes; shorter side of basal segment of flagellum fully equal to segment 2, median segments about as broad as long; mandibles slender and simple; wings quite deeply infuscated, with the usual three submarginal cells, the 2nd very broad anteriorly, 3rd much narrowed, veins piceous, basal vein interstitial with transverse median; tegulae shining, with only a few scattered, very sparse punctures; posterior margin of scutellum quite deeply depressed medially, front coxae with elongate spines, these often obscured by pubescence; apex of hind tibiae with a dense transverse patch of extremely short, dark setae, without elongate hairs or setae; labrum, mandibles, scape and pedicel yellowish-ferruginous, the clypeus yellowish or black, face with extensive, lateral, yellow maculae reaching from lateral margins of clypeus nearly to top of eye, cheeks narrowly ferruginous along margin of eye, head otherwise black, the antennal flagellum brownish-piceous; pronotal collar, tubercles, tegulae, scutellum laterally, metanotum and a posterior spot on mesopleura, bright yellow; scutellum ferruginous medially and narrowly across anterior margin, legs ferruginous basally, becoming somewhat more testaceous on apical tarsal segments, spurs pale yellow; basal abdominal tergum with a very narrow, transverse, subapical, yellow band; tergum 2 with a similar yellow band which is quite broad laterally, somewhat narrowed medially; transverse band of tergum 3 interrupted medially and at each side, resulting in four transverse spots which may be much reduced or lacking in some specimens; tergum 4 with a transverse band which is interrupted on each extreme side; and tergum 5 with a pair of more or less separated yellow spots on each side of mid-line; abdominal sterna entirely black; punctures of head and thorax very coarse and deep in general, close between antennae and ocelli, somewhat more sparse on maculated areas at sides of face, deep and close on supraclypeal area, and somewhat finer but distinct and slightly separated on clypeus, fine but deep and distinct on vertex and cheeks; scutum very coarsely rugoso-punctate, but with a very few narrow, shining, interspaces evident, somewhat finer and distinct on scutellum, well separated on pleura below, becoming very close above; propodeum dull, very finely and closely punctate laterally, somewhat more coarsely so on posterior face, triangle smooth but rather dull; abdominal tergum 1 shining, punctures extremely minute across base, but with some more definite and distinct punctures between the transverse yellow band and apical margin, these becoming more minute toward the rim; discs of terga 2-4 with deep, distinct, close and uniform punctures, apical rims narrowly impunctate; punctures of tergum 5 deep and distinct but much more widely separated; pseudopygidium transverse, forming the truncate apical rim of tergum 5, densely covered with very short, subappressed, yellowish setae; pubescence extremely short, thin, sparse and obscure throughout, entirely whitish.
MALE—Length 10 mm.; lateral ocelli slightly nearer to each other than to margin of vertex; cheeks narrow, about half width of eyes; shorter side of basal segment of flagellum fully equal to segment 2, median segments very short, slightly broader than long; mandibles slender and simple; wings quite deeply infuscated, with the usual three submarginal cells, the 2nd very broad anteriorly, 3rd strongly narrowed, veins piceous, stigma more yellowish, basal vein interstitial with transverse median; tegulae shining, with only a few scattered, very sparse punctures; posterior margin of scutellum quite deeply depressed medially; front coxae with slender, elongate spines that are usually obscured by pubescence; hind femora unmodified; lower half of face largely yellow, only the supraclypeal area black, this sometimes extending downward onto upper portion of clypeus, the lateral maculations extending more narrowly along margin nearly to top of eye, basal half of mandibles bright yellow, becoming darker at tip, labrum more yellowish-ferruginous, head otherwise black, but cheeks above with a small yellow spot; pronotal collar, tubercles, tegulae, scutellum on each side, metanotum, and a posterior spot on mesopleura, bright yellow; scutellum ferruginous medially and along anterior margin, legs more testaceous, spurs pale yellowish; basal abdominal tergum with a narrow, entire, subapical yellow band; tergum 2 with a similar but very broad, entire band which is slightly narrowed medially; terga 3-5 with very narrow yellow bands which are more or less interrupted medially and at each side, resulting in four rather narrow, transverse, yellow maculations, 6 entirely black; abdominal sterna entirely black; punctures of head and thorax in general very coarse, deep and close, somewhat finer and more widely separated on face laterally and below, rather fine but distinct and slightly separated on clypeus, somewhat finer and close on vertex and cheeks; scutum more rugoso-punctate, punctures of scutellum somewhat more distinct, pleura below with some shining interspaces evident but becoming rather densely rugose above; propodeum dull, very finely and rather densely punctate laterally, punctures of posterior face somewhat coarser but very close, triangle smooth but rather dull and tessellate; basal abdominal tergum shining, almost impunctate, with only very fine but distinct punctures between transverse band and apical rim; discs of terga 2-5 deeply, distinctly closely and rather coarsely punctate, with only the narrow apical rims becoming impunctate, these more or less yellowish hyaline; punctures on tergum 6 somewhat coarser, deep, distinct and more widely separated but not sparse; pubescence extremely and obscure, entirely white where visible; basal width of pygidial plate about equal to quite strongly narrowed apically and a deep median apical incision, lateral carinate, surface rather smooth but with scattered, fine punctures; sternum 8 as in modesta (fig. 101); genital armature much as in modesta (fig. 101) but gonocoxites (fig. 99) with robust and rather elongate basal lobes.
DISTRIBUTION—Florida, Georgia and South
Carolina, March to September.
FLOWER RECORDS—Bidens, Ceanothus, Melilotus and Polygonum.
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