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Nomada armatella Cockerell, 1903
Life   Insecta   Hymenoptera   Apoidea   Apidae   Nomada
Subgenus: None

Nomada armatella MALE CFP
© Copyright Laurence Packer 2014 · 7
Nomada armatella MALE CFP

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Nomada armatella, Barcode of Life Data Systems
Barcode of Life Data Systems · 1
Nomada armatella, Barcode of Life Data Systems
Nomada armatella, female, T1, I sd3041
© Mary Paul · 1
Nomada armatella, female, T1, I sd3041

Nomada armatella, female, T2 stipe broken
© Mary Paul · 1
Nomada armatella, female, T2 stipe broken
Nomada armatella, female, antennae2and3
© Mary Paul · 1
Nomada armatella, female, antennae2and3
Overview
Female has not previously been described Material Examined:

Reprinted with permission from: Mitchell, T.B. 1962 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 152.

MALE—Length 8-10 mm.; lateral ocelli sub- equally distant from margin of vertex and each other; cheeks somewhat narrower than eyes, posterior margin only subcarinate at most; antennal scape only slightly swollen, apex deeply excavated, completely enclosing pedicel, basal segment of flagellum very short, shorter side only about half the length of segment 2, median segments somewhat longer than broad; mandibles rather slender and simple apically; wings hyaline basally, becoming rather deeply but narrowly infuscated along outer margin and in marginal cell, with usual three submarginal cells, 2nd considerably broader than 3rd anteriorly, veins testaceous to piceous, basal vein much basad transverse median; tegulae shining, punctures minute and obscure, sparse laterally, becoming rather close along inner margin; posterior margin of scutellum only very slightly impressed medially; front coxae not spinose; hind femora slender and unmodified; clypeus, labrum, mandibles, and narrow lateral facial maculae ending narrowly on eye margin slightly above level of antennae, yellow, the supraclypeal area more or less yellow medially, and cheeks with a yellow line below along margin eye; face, vertex and cheeks otherwise black, extending to margin of clypeus and along clypeal sutures; antennal scape yellow anteriorly, more ferruginous posteriorly, flagellum brownish-testaceous beneath, somewhat more piceous above toward base, more ferruginous apically; pronotal collar, tubercles, tegulae and two large spots on scutellum, yellow, and mesopleura with a rather large anterior yellow maculation which is more or less bordered with ferruginous; scutum deep ferruginous, more or less blackish along median area, pleura and propodeum largely black, the mesopleura. with a small reddish spot just below wing base; scutellum usually ferruginous along mid-line and posteriorly, adjacent area metanotum ferruginous; front and mid tarsi and apices of all femora and tibiae, yellow, legs otherwise largely testaceous, hind femora more or less piceous, spurs pale yellow; abdominal tergum 1 broadly piceous at base and rather broadly ferruginous across apical margin, with a pair of transverse, yellow maculations at each side that are separated medially; discs of terga 2-4 largely yellow, interrupted medially with narrow red lines, apical impressed areas more reddishtestaceous, terga 5 and 6 with transverse, subapical, yellow bands, that on 5 narrowly extended nearly to lateral margins; abdominal sterna largely reddish-testaceous, sternum 6 narrowly yellowish at apex; face coarsely and closely punctate, punctures becoming much finer and more distinctly separated on maculated areas below, and very fine and obscure on clypeus, rather coarse on vertex medially, becoming considerably finer laterally, and cheeks becoming rather coarsely rugose below; scutum coarsely rugoso-punctate, mesopleura somewhat more shallowly rugose, scutellum coarsely rugose basally and medially, becoming rather finely and vaguely rugose laterally and posteriorly, and propodeum rather finely rugose, triangle rather smooth below but becoming broadly, coarsely, rugose-striate across upper half; discs of abdominal terga finely but quite deeply and distinctly punctate, quite closely so basally except on tergum 1 which is impunctate laterally and basally, apical margins invaded by the punctures, only the narrow apical rims impunctate; pubescence entirely pale, quite copious and elongate over head and thorax, obscuring surface on thorax below, very fine and obscure on abdomen dorsally, the sterna with more elongate but very fine, pale hairs, sternum 6 becoming rather densely pale yellowish pubescent apically; median length of pygidial plate much greater than basal width, only slightly narrowed apically, apex very deeply emarginate, margins carinate, surface with rather shallow, coarse and close punctures; exposed sternal plates unmodified, sternum 6 subtriangular, the apex narrowly rounded; sternum 8 with a slender apical process; gonocoxites of genital armature as shown (fig. 107).

DISTRIBUTION—Michigan to the New England states, May to August. The type locality is “Canada.”


Identification
Very similar to N.bethunei, but see descriptions in the guide for differentiation, particularly the setae. The scutellum and metanotum usully, but not always with extensive yellow, if not all yellow then usually there are two somewhat fuzzy, not sharply defined, yellow dots on the scutellum and the remaining portion of that plate orange to orange red.

Names
Scientific source:

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FamilyScientific name @ source (records)
Salicaceae  Salix sp @ AMNH_BEE (1)

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Updated: 2024-03-28 14:33:58 gmt
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