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Perdita affinis Cresson, 1878
Life   Insecta   Hymenoptera   Apoidea   Andrenidae   Perdita
Subgenus: Perdita

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Reprinted from: Cresson, E.T., 1878. Descriptions of new North American Hymenoptera in the collection of the American Entomological Society. Trans. Am. Entomol. Soc.7:69-70.

Form of sebrata; head and thorax blue or green ish-blue thinly clothed with pale pubescence; sides of face, narrowed above, clypeus except sometimes two or more black points, occasionally a spot or two above clypeus, base of mandibles, scape beneath, a spot on each side of pro thorax, tubercles and tegulss pale yellow; flagellum pale testaceous beneath; wings as in sebrata; legs black with pale pubescence, the knees, and the four anterior tibias in front yellowish; abdomen black, shining, a yellowish band on segments 1?4. interrupted on the disk and more or less dilated and oblique on the sides; fifth segment immaculate and fringed with pale pubescence; apical segment testaceous; generally, the spot on each side of fourth segment does not reach the lateral margin. Length .20?.25 inch.
%.?Face, clypeus, Inbrura, mandibles, lower posterior orbits, antenna be* neath, two spots on prothorax, tubercles, tegula and most of four anterior lega, yellow; abdomen with yellowish band on segments 1?3,slightly interrupted on disk and dilated laterally on second segment; fourth segment with two small pale spots. Length .20 inch. Hab.?Colorado, (Ridings). Five specimens. Closely resembles S-maculata Say, but much smaller and with clearer wings.

Scientific source:

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Hosts · map
FamilyScientific name @ source (records)
Asteraceae  Chrysothamnus sp @ BBSL (1)

Grindelia hirsutula @ UCRC_ENT (1)

Grindelia squarrosa @ UCRC_ENT (61)

Senecio longilobus @ BBSL (1)

Xanthisma gracile @ UCRC_ENT (21)
Polygonaceae  Eriogonum @ UCRC_ENT (1)

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Updated: 2024-04-19 22:35:08 gmt
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