Smithsonian Institution, Entomology Department · 1 Andrena antonitonis, face |
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Smithsonian Institution, Entomology Department · 1 Andrena antonitonis, side |
Smithsonian Institution, Entomology Department · 1 Andrena antonitonis, top |
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Smithsonian Institution, Entomology Department · 1 Andrena antonitonis, wing |
Overview |
Reprinted from: Viereck, H.L. and T.D.A. Cockerell. 1914. New North American bees of the genus Andrena. Proceedings of the U.S. National Museum 48: 1-58. The copyright on this work has expired.
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Antonito, Colorado. August 5, 1899. (Gillette.)
FEMALE. — Length, 10 mm. Black, rather slender; the front faintly greenish. Pubescence grayish white. Facial quadrangle broader than long. Process of labrum narrowly truncate. Clypeus shining, with sparse small punctures and an indistinct median ridge. Facial foveae seen from above brownish white, occupying about half distance between eye and antenna ; seen from the side the foveae appear dark brown; they extend scarcely narrowed just below level of antennae and are very narrowly separated from eye. Flagellum obscure brownish beneath. Third antennal joint as long as next two combined. Mesothorax dull in front, shining posteriorly, with scattered small punctures. Scutellum shining. Area of metathorax granular. Tegulae ferruginous, with a fuscous spot. Wings reddish hyaline, nervures and the rather small stigma ferruginous. Basal nervure just falling short of transverse median. The very broad second submarginal cell receiving 1st recurrent nervure at or little before middle. Hair on hind tibiae and on inner side of hind tarsi white, faintly yellowish on the tarsi. Spurs cream color. Abdomen dullish, with excessively minute punctures. Segments 2-4, with broad entire white hair bands. Hair at apex very pale yellowish. Second segment in middle depressed less than a third.
This is very like A. synthyridis Cockerell (LL notes: = Andrena nigrihirta Ashmead); they agree in the foveae, but antonitonis has the middle of mesothorax shining and sparsely punctured, while synthyridis has it duller and more closely punctured. They also differ in the minute sculpture of abdomen, and are certainly distinct species. In the key, A. antonitonis falls in a couplet with A. perindotata (LL notes: = Andrena thaspii Graenicher), from which it is separated by the polished clypeus.
TYPE. — Cat. No. 18164, U.S.N.M.
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Updated: 2024-03-28 19:39:17 gmt
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