Smithsonian Institution, Entomology Department · 9
Hoplitis truncata, female, face |
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Smithsonian Institution, Entomology Department · 9
Hoplitis truncata, female, side |
Smithsonian Institution, Entomology Department · 9
Hoplitis truncata, female, top |
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Smithsonian Institution, Entomology Department · 9
Hoplitis truncata, female, wing |
© Copyright Laurence Packer 2014
· 7
Hoplitis truncata FEM mm x f |
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© Copyright Laurence Packer 2014
· 7
Hoplitis truncata MALE mm x ZS PMax |
Michael Veit · 6
Hoplitis truncata, f on Baptisia -- |
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Michael Veit · 6
Hoplitis truncata, f |
© Copyright source/photographer
· 5
Hoplitis truncata, F, back, West Virginia, Hardy County |
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© Copyright source/photographer
· 5
Hoplitis truncata, F, face, West Virginia, Hardy County |
© Copyright source/photographer
· 5
Hoplitis truncata, F, side, West Virginia, Hardy County |
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© Copyright source/photographer
· 5
Hoplitis truncata, m, back, Prince Georges Co., MD |
© Copyright source/photographer
· 5
Hoplitis truncata, m, face, Prince Georges Co., MD |
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© Copyright source/photographer
· 5
Hoplitis truncata, m, left side, Prince Georges Co., MD |
© USDA Bee Biology and Systematics Laboratory, Logan Utah
· 1
Hoplitis truncata, female, clypeus t |
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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 8.5-9.5 mm.; entirely black; face slightly longer than distance between eyes above; eyes very slightly convergent below; lateral ocelli subequally distant from eyes and margin of vertex, slightly nearer to each other; clypeus slightly convex,apical margin somewhat produced, nearly straight and slightly impressed, a quite distinct, median, impunctate ridge extending from base to near the apex; mandibles distinctly 3-dentate, only slightly expanded apically, middle tooth nearer apex than to inner angle (fig. 22); cheeks very slightly broader than eyes; wings faintly infuscated, veins and stigma brownish-piceous; tegulae shining, blackish, with scattered, minute punctures; legs entirely black, front and mid spurs testaceous, hind spurs somewhat darker; pubescence entirely pale, quite short and thin in general but rather copious around antennae and down sides of face, cheeks below with a fringe of much elongated hairs that nearly meet beneath; pleura and propodeum with rather copious pubescence, that on legs short in general, somewhat elongated on front femora posteriorly; abdominal terga 1-5 with white, apical fasciae, these widely interrupted on 1 and 2, entire or subentire on 3-5, discal pubescence extremely short, hardly evident, becoming quite copious on 6 but not hiding surface; scopa entirely yellowish-white.
MALE�Length 8-8.5 mm.; entirely black; face slightly longer than distance between eyes above; eyes considerably converging below; antennal scape somewhat enlarged but not dilated apically, subapical segments of flagellum considerably broader than long, apical segment more elongate, slightly curved, tapering nearly to a point; lateral ocelli sub- equally distant from eyes, margin of vertex and each other; clypeus slightly convex, densely pubescent, apical margin somewhat produced but nearly straight; mandibles distinctly bi-dentate; median length of labrum not much greater than basal width, basal half shining, slightly excavated, apical portion strongly convex, shining but with distinct punctures; cheeks subequal to eyes in width; wings very lightly infuscated, veins and stigma more brownish-piceous; tegulae shining, brownishhyaline in part, with scattered, fine punctures; legs entirely dark, spurs pale testaceous; tergum 7 exposed, broad, apical margin rather broadly truncate (fig. 22); sterna 1-5 at least partially exposed, 1 slightly thickened toward apical margin but not at all produced, 2 broad and rather expansive, apical margin slightly outcurved, disc slightly swollen across median area, 3 and 4 with broad and rather shallow, incurved, or emarginate areas which are densely fringed, slightly swollen on each side, 6-8 retracted, form as shown (fig. 24); genital armature as shown; pubescence entirely pale, rather short in general, dense and copious around antennae and over lower half of face and clypeus, quite dense on cheeks below posteriorly, copious over pleura and aroundwing bases, and quite dense on front femora posteriorly; terga 1-5 with white apical fasciae, these widely interrupted on 1 and 2, more or less entire on 3-5, discal pubescence very short and thin, but becoming somewhat more evident on the more apical terga; punctures fine and close in general, more distinctly separated on vertex and dorsum of thorax where surface is shining, densely crowded on cheeks, lower part of face and pleura; propodeum dull and tessellate, with very shallow and obscure but densely crowded punctures laterally, posterior surface somewhat more shining, abdominal terga more shining, punctures slightly separated medially on terga 1-4 becoming crowded laterally, quite uniformly close on 5 and 6, 7 rather coarsely, irregularly rugose or reticulate.
DISTRIBUTION�North Dakota to Quebec and Maine, south to Florida, March (in Florida) to July.
FLOWER RECORDS�Baptisia, Berlctndiera, Ceano thus, Erigeron, hex, Melilotus, Oenothera, Pentstemon, Rubus, Trifolium, Vaccinium and Vicia. Robertson (1929) records it on Convolvulus and Gillenia.
Another form of truncatct, mescaleriuin Cockerell, occurs in Colorado and New Mexico.
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Identification | |
Extracted from: Robertson, C. (1897). North American Bees - Description and Synonyms. Transactions of the Academy of Science od St. Louis. Vol. 7. No. 14.
In this excerpt, Hoplitis truncata is known as the now synonymized Alcidamea truncata.
♀- Black, more shining and more sparsely punctured
above ; head as wide as thorax, sides of face with thin pale pubescence ; clypeus rather short and fiat, opaque, closely
punctured, with a median raised line, space above shining
and sparsely punctured, apical margin slightly emarginate ;
edge of cheeks beneath with a row of long incurved hairs ;
head beneath smooth, shining and impunctate, on each side of
tongue fossa ; vertex swollen, shining, rather sparsely punctured ; antennae and mandibles black, the latter tridentate ; mesonotum and scutellum shining and rather sparsely
punctured on the disc, scutellum swollen; space on metathorax above opaque, impunctate, fossa shining below ; wings
a little dusky, more so towards tips ; submarginal cells subequal, second receiving one recurrent about one-fourth from
base and the other about one-fifth from apex; nervures fuscous, tegulae black; legs with pale pubescence, yellowish on
tarsi beneath; abdomen rounded at base, with a median
impressed line, basal segments sparsely punctured on the disc,
1-5 with apical fasciae of white pubescence, interrupted and
wider on sides of 1-2, ventral scopa white. Length 9 mm.
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Updated: 2024-04-26 18:02:22 gmt
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