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Perdita sexmaculata Cockerell, 1895
Perdita anograe Cockerell, 1902; Perdita (Perdita) sexmaculata octonaria Timberlake, 1962, valid subspecies

Life   Insecta   Hymenoptera   Apoidea   Andrenidae   Perdita
Subgenus: Perdita

Perdita sexmaculata, back
© Copyright source/photographer · 5
Perdita sexmaculata, back

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Perdita sexmaculata, face
© Copyright source/photographer · 5
Perdita sexmaculata, face
Perdita sexmaculata, side
© Copyright source/photographer · 5
Perdita sexmaculata, side
Extracted from: Timberlake P.H., (1958). A Revisional Study of The Bees of the Genus Perdita F. Smith, with Special Reference to the Fauna of the Pacific Coast (Hymenoptera, Apoidea) Part III. University of Caifornia Press Berkeley and Los Angeles 1958, Volume 14, No. 5, pp. 303-410, plates 4-15.

Female.—Head and thorax dark blue or blue-green, the clypeus, supraclypeal area, sides of face, and sometimes inner orbits to summit of foveae black, the disk of mesonotum sometimes blackish. No light face marks, but malar space and base of mandibles yellowish, the yellow of mandibles shading into testaceous at middle, then into red at apex. Thorax entirely dark, the tubercles brownish at apex. Abdomen blackish with a creamy-white mark on each side of tergites 2 to 4, close to lateral margins. Legs blackish, the anterior side of front tibiae brownish yellow, the front tarsi brown. Scape of antennae black, the flagellum fuscous above and yellowish brown beneath. Tegulae testaceous, the base fuscous. Wings nearly clear hyaline, the nervures brown, the subcosta and stigma a little darker, the stigma not much paler centrally.

Head somewhat broader than long, subtruncate anteriorly. Disk of clypeus about twice as broad as high, the lateral extensions broad and reflexed. Mandibles simple and acute, reaching not much beyond the middle of the proboscidial fossa. Galeae together very acute at apex, and when folded in repose not reaching base of stipites. Maxillary palpi four-jointed, about two thirds as long as the galeae. Facial foveae strongly impressed, not much wider than interval between them and eyes, and reaching from a little above level of antennal sockets about two thirds of distance to level of anterior ocellus. Part of marginal cell beyond stigma about as long as part beneath, or sometimes a little longer. Pygidial plate moderately broad, with sides con- verging to the rather narrow, obtuse apex. Frons tessellate, moderately shining, the mesonotum polished, or sometimes weakly tessellate; punctures of both face and mesonotum fine and remote. Pubescence whitish, thin, and erect, the hair of face and mesonotum moderately short. Length, about 4-5 mm.; anterior wing, 2.9-3 mm.

Male.—Head and thorax dark blue-green. Narrow postorbital line to middle of eyes, labrum, mandibles except red tips, and face below level of antennae bright yellow; supraclypeal mark extending a short distance onto frons, and the oblique upper end of lateral marks somewhat convexly arcuate from level of antennal sockets, or a little above that level, to a point on orbits slightly above level of f oveae. Thorax dark, except yellow tubercles. Abdomen brownish black, or black, with a creamy-white mark on each side of tergites 2 to 4 or 5, these marks generally more transverse than those of female, but hardly larger. Ventral segment 3, or segments 3 and 4, sometimes with two white spots. Legs yellow or brownish yellow, the coxae, except anterior side of front pair, posterior side of front and middle femora, the hind femora except mark on anterior side at apex, and sometimes a streak or blotch on outer side of all the tibiae brown or fuscous. Scape of antennae bright yellow, the flagellum orange yellow, with spot at apex of scape, pedicel, and base of flagellum above brownish. Tegulae and wings about as in female, the former sometimes more hyaline and yellow at base, the stigma of wings sometimes paler centrally than in female.

Head broader than long, with lateral plates of face nearly as broad as the space between them. Mandibles simple, acute, and not reaching the far margin of proboscidial fossa. Foveae oval, about twice as long as wide. Sculpture about as in female, the mesonotum often delicately tessellate and the frons strongly tessellate and dullish. Subgenital plate broader at base than apex and only a little longer than the apical width. Caulis of aedeagus deeply divided apically above, the parasacral lobes moderately narrow, with an oblique ridge or elevation on inner margin a little beyond the middle; volsellae well exposed and armed with numerous dark tubercles; body of sagittae about four times longer than wide, slightly expanded at middle and narrowly obtuse at apex as seen from above. Length, about 2.75-3.75 mm.; anterior wing, 2.4-2.8 mm.

Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Asteraceae  Malacothrix sp @ BBSL (11)
Euphorbiaceae  Euphorbia sp @ BBSL (4)
Hydrophyllaceae  Phacelia distans @ BBSL (2)

Phacelia sp @ BBSL (41)
Malvaceae  Sphaeralcea sp @ BBSL (1)
Solanaceae  Chamaesaracha coniodes @ UCRC_ENT (1)

Chamaesaracha coronopus @ UCRC_ENT (1)

Chamaesaracha crenata @ BBSL (9)

Chamaesaracha villosa @ UCRC_ENT (2)

Chamaesaracha @ AMNH_BEE (1); UCRC_ENT (3)

Physalis lobata @ UCRC_ENT (4)

Quincula lobata @ BBSL (2)
_  Withheld @ BBSL (24)

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Updated: 2024-06-24 22:42:52 gmt
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