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| Links | Identification Tip: Males can be tough to tell from N. luteoloides, particularly if they are not in good shape and you can't see the hairs on the middle tarsi. 95% of the time N. imbricata males have a lightened strip that runs lenghtwise down the underside of the scape...the part that faces the back of the bee...through the black patch that exists there...N. luteoloides never has that. Thanks to Deana Crumbling for finding this character.
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© Copyright Laurence Packer 2014
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Nomada imbricata FEM mm x ZS PMax |
© Copyright Laurence Packer 2014
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Nomada imbricata MALE CFP |
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Michael Veit · 6
Nomada imbricata, m on -- |
Michael Veit · 6
Nomada imbricata, m on -- |
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Michael Veit · 6
Nomada imbricata, m on -- |
© Copyright source/photographer
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Nomada imbricata, F, back, Pr. Georges Co., Maryland |
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© Copyright source/photographer
· 5
Nomada imbricata, F, face, Pr. Georges Co., Maryland |
© Copyright source/photographer
· 5
Nomada imbricata, F, side, Pr. Georges Co., Maryland |
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Steve Nanz · 1
Nomada imbricata |
Bruce Marlin · 1
Nomada imbricata, copyright Bruce Marlin www.cirrusimage.com |
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© Mary Paul
· 1
Nomada imbricata, female, scape hairs |
© Mary Paul
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Nomada imbricata, female, labrum hairs |
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Overview |
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 9-10 mm.; lateral ocelli subequally distant from margin of vertex and each other; cheeks somewhat narrower than eyes, posterior margin carinate; shorter side of basal segment of flagellum only slightly shorter than segment 2, median segments only slightly longer than broad; mandibles rather slender and simple apically; wings hyaline basally, becoming faintly yellowish apically, with the usual three submarginal cells, 2nd and 3rd subequal anteriorly, veins testaceous to piceous, basal vein much basad of transverse median; tegulae somewhat shining between quite deep and distinct, rather fine punctures, these close anteriorly, becoming rather sparse posteriorly; posterior margin of scutellum rather deeply depressed medially; front coxae not spinose; posterior apical angle of hind tibiae with a pair of short, triangular, acute tubercles; face chiefly yellowish-ferruginous, more yellowish below antennae, somewhat more reddish above; antennal scape testaceous, flagellum brownish-testaceous; thorax in large part ferruginous, pronotal collar, tubercles, and a pair of small maculations on scutellum, yellow, and propodeum with a pair of small and rather indefinite yellow areas on each side; tegulae testaceous; prothorax black laterally; propodeum largely ferruginous, with a small yellow spot on each side of posterior face, a broad black band on each lateral face, and a restricted blackened area just below metanotum medially; legs testaceous in large part, front and mid tibiae more or less tinged with yellow, spurs pale yellow; abdominal terga reddish, with yellow maculations, basal tergum largely reddish, with faint, obscure, yellow areas on each side, the apical, impressed area more piceous; tergum 2 with broad, lateral, yellow maculations, ferruginous medially and apically; terga 3-5 with transverse, subapical bands that are of rather uniform width, that on 5 subapical, broad medially, narrowly constricted at each side; discs of sterna 3 and 4 more or less yellow medially, apical margins broadly impunctate, reddish-hyaline; punctures coarse, close, deep and distinct on face above antennae and on vertex, somewhat finer on cheeks, rather coarse on each side of face below antennae, very fine and close on supraclypeal area and clypeus; scutum and mesopleura densely and quite coarsely rugosopunctate, scutellum with very coarse, deep and distinct punctures; propodeum shallowly rugose posteriorly, becoming somewhat smoother but dull on the lateral surfaces, triangle impunctate but densely tessellate, becoming irregularly striate above; basal abdominal tergum very minutely and obscurely punctate across median area apically, becoming practically impunctate laterally and basally; discs of terga 2-5 very finely and closely punctate basally, punctures becoming obscure laterally, the apical impressed areas largely impunctate, with the more apical punctures on discs of 4 and 5 somewhat more sparse and distinct; pseudopygidium transverse, very short, forming the rather narrow apical margin of tergum 5, densely covered with suberect, pale yellowish tomentum; pubescence very thin, short, obscure, somewhat more copious on head and thorax below, but visible above, rather dense on propodeum, abdomen largely bare but with somewhat more elongate hairs apically; apex of sternum 5 with a pair of tufts of elongate, curved, yellowish hairs that converge medially.
DISTRIBUTION—New York and the New England states, to Nova Scotia, May and June.
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Updated: 2024-04-25 20:56:39 gmt
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