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Svastra atripes, Female, Face, Brevard County, FL |
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Svastra atripes, Female, Side, Brevard County, FL |
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© Copyright source/photographer
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Svastra atripes, Male, Face, Brevard County, FL |
© Copyright source/photographer
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Svastra atripes, Male, Side, Brevard County, FL |
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Svastra atripes atrimitra, F, Back, GA, Baker County |
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Svastra atripes atrimitra, F, Face, GA, Baker County |
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© Copyright source/photographer
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Svastra atripes atrimitra, F, Side, GA, Baker County |
© USDA Bee Biology and Systematics Laboratory, Logan Utah
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Svastra atripes, female, abvestiture text |
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© USDA Bee Biology and Systematics Laboratory, Logan Utah
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Svastra atripes, female, pleurae text |
© USDA Bee Biology and Systematics Laboratory, Logan Utah
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Svastra atripes, female, scopa text |
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© USDA Bee Biology and Systematics Laboratory, Logan Utah
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Svastra atripes, male, abpunctation text |
© USDA Bee Biology and Systematics Laboratory, Logan Utah
· 1
Svastra atripes, male, abvestiture text |
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© USDA Bee Biology and Systematics Laboratory, Logan Utah
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Svastra atripes, male, mesopleuron text |
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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 15-20 mm., breadth of abdomen 6-8 mm.; black, mandibles black basally, red apically, with a yellow maculation along apical half; tegulae testaceous to brownish; wings more or less deeply infuscated and violaceous; basal segment of flagellum nearly twice as long as segment 2, the latter slightly longer than broad; median length of clypeus about half distance between eyes below; eyes subparallel; pleura and dorsum of thorax closely and coarsely punctate, propodeum tessellate, dorsal face finely and densely rugose; discs of abdominal terga closely, finely and distinctly punctate, surface dull, apical rims narrowly impunctate; pubescence of head and thorax largely pale ochraceous, with some dark hairs on face laterally and on vertex behind ocelli, black on mesopleura anteriorly and beneath; legs with black or piceous pubescence; anterior face of basal abdominal tergum black pubescent, dorsal face with copious pale pubescence across basal half, apical half nearly bare; tergum 2 with a basal white fascia, largely covered by apical rim of the preceding disc; terga 3 and 4 usually with oblique, lateral, whitish fasciae; discs of terga otherwise covered with very fine, short, appressed, black hairs that do not obscure surface, but tergum 5 with a dense fimbria of black, plumose hairs; apex of pygidial plate rather broadly rounded.
MALE—Length 13-18 mm., breadth of abdomen 4.-7 mm.; black, the clypeus, labrum and base of mandibles yellow, mandibles blackened apically but with a broad, outer, more testaceous maculation over apical third; flagellum testaceous beneath, piceous above, but basal segment somewhat more brownish; apical tarsal segments and spurs brownish-testaceous; tegulae testaceous; wings pale yellowish-brown, veins testaceous to brownish; clypeus not markedly protuberant, its median length somewhat greater than half the distance between eyes below; eyes subparallel; shorter side of basal segment of flagellum nearly equal to apical width, segment 2 about three times this length; punctures of clypeus very fine, well but not widely separated and rather obscure, those of labrum somewhat deeper and more distinct and close; lateral areas of face above clypeus quite closely, finely and deeply punctate, punctures becoming minute on the shining surface between eyes and ocelli; cheeks with minute, slightly separated and obscure punctures; scutum, scutellum and pleura coarsely, deeply and closely punctate, the punctures obscured by dense pubescence; posterior face of propodeum with somewhat finer, more widely separated punctures, dorsal face rather finely rugose, lateral faces more shining, punctures becoming somewhat finer anteriorly and below; abdominal terga closely, deeply and distinctly punctate, the punctures rather coarse across base of each plate, the broad apical impressed areas much more finely and closely, but distinctly punctate, only the narrow apical rims impunctate; tergum 5 slightly angulate at each extreme side, and tergum 6 with a robust, triangular, apical spine at each side; pubescence quite dense and erect, entirely pale ochraceous over entire head and thorax; front legs largely pale pubescent, with a brown patch on tibiae apically, mid and hind legs largely blackish or piceous pubescent; basal abdominal tergum ochraceous pubescent over basal half and on lateral margins, remainder of disc with very short, inconspicuous, suberect, blackish pubescence; tergum 2 with a conspicuous, basal, pale ochraceous or whitish fascia that is covered in part, at least, by tergum 1; terga 2 and 3 with submedian, slightly oblique, narrow, whitish fasciae, interrupted medially and often very poorly developed; discs of all terga otherwise covered with very short and inconspicuous, subappressed, blackish pubescence, sometimes with a few pale hairs laterally, the more apical terga with some elongate, more erect, dark hairs; median length of pygidial plate considerably less than basal width, somewhat narrowed apically, slightly constricted just before the broadly rounded or subtruncate apex; sternum 7 as shown (fig. 80); sternum 8 and genital armature similar to those in aegis (fig. 79).
DISTRIBUTION—This typical form is primarily western in its range, occurring from New Mexico and Colorado to Louisiana and Illinois, and is in flight in various parts of this range from March to October.
FLOWER RECORDS—LaBerge (1956) lists the following: Asclepias, Bidens, Cassia, Cleome, Dalea, Gaillardia, Gonolobus, Gossypium, Helianthus, Ipomoea, Lythrum, Melilotus, Pycnanthemum, Thelesperma, Verbena and Vernonia.
Svastra atripes atrimitra (LaBerge)
FEMALES of this form agree in most details with typical atripes, but the oblique pale fasciae on terga 2 and 3 are entirely lacking, and the scopal hairs on the hind tibiae and basitarsi are entirely black. In the MALES also these fasciae are either absent or much reduced.
DISTRIBUTION — Alabama and Georgia to New Jersey, with one record from Indiana, July to November.
FLOWER RECORDS — Afzelia, Buddleia, Chamaecrista, Kuhnistera, Monarda and Rhus. LaBerge (1956) also lists Bradburya, Gerardia, Gossypium, Hibiscus, Koellia, Passiflora and Primula.
Svastra atripes georgica
The FEMALES of this form may be separated from either typical atripes or atrimitre, by the presence of pale hairs in the scopa of the hind tibiae although the basitarsal scopal hairs are entirely black. Usually there are oblique, white fasciae on abdominal terga 3 and 4, but these are sometimes reduced or absent. In MALES also there is a much greater development of the white fasciae on the abdominal terga with conspicuous, more or less oblique, white fasciae on terga 3 and 4 and usually also 2; and the pubescence of the outer surface of the mid and hind tibiae is considerably paler than in either of the other forms.
DISTRIBUTION—Georgia and Florida, July to October.
FLOWER RECORDS—Bidens and Rhus.
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Updated: 2024-04-26 21:50:45 gmt
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