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Perdita Smith
Life   Insecta   Hymenoptera   Apoidea   Andrenidae
Subgenera: Alloperdita, Callomacrotera, Cockerellia, Epimacrotera, Glossoperdita, Hesperoperdita, Heteroperdita, Hexaperdita, Pentaperdita, Perdita, Perditella, Procockerellia, Pseudomacrotera, Pygoperdita, Uncertain, Xeromacrotera, Xerophasma

Perdita consobrina F AMNH BEE-HOLOTYPE-
© Copyright Hadel Go 2011-2016 · 10
Perdita consobrina F AMNH BEE-HOLOTYPE-

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    Extracted from 2017 “Bees of Maryland: A Field Guide” http://bio2.elmira.edu/fieldbio/beesofmarylandbookversion1.pdf

    Tiny and uncommon. However in the right sandy habitats, with the right native composites; particularly dune areas, sand mines, or other sparse areas of deep sand, some sand Perdita species can occur in high numbers.

    Field Marks: ♀♂Tiny size, body hairs very sparse (except for P. bequaerti, which is only moderately hairy). Hairs never forming bands or dense enough to be noticeable in the field. Wings, 2 submarginal cells. Face, usually, wider than long (one rare exception). Wing, marginal cell super short (its length along the edge of the wing is equal to or less than the length of the adjacent dark stigma) with the end clearly squared off rather than pointed. ♀Integument black to slightly metallic blue or green, almost always with some light-colored markings on face. Abdomen markings vary from none to stripes, often forming small blotches on the sides. Markings tending to be white to light yellow not bright yellow. Clypeus, scape (large antennal segment next to head), and area to sides of clypeus almost always with light-colored markings dissected by dark areas. Hind legs, pollen carrying hairs, all species except P. bequaerti, sparse and hardly noticeable thus the females often appear male-like. ♂Face below antennae, all or primarily white to light yellow in most species. Face noticeably wider-than-long and squarish. Antennae short, not noticeably longer than female.
    Flight Season: Late summer/fall for sandy soil species
    Size Relative to Honey Bee: 0.3 - 0.5X
    Position of Wings Feeding on Flowers: Completely overlapping
    Location of Pollen Carrying Hairs: Hind tibia and basitarsus
    Similar Genera: Hylaeus - ♀Has yellow/white markings on face only between eye and clypeus, carries no external pollen. ♂Entire lower face often yellow/pale-white, but body dark black and legs with some yellow/white markings on them. Calliopsis - Face, markings quite different, has pale hair bands on abdomen. Panurginus - Flight periods do not overlap, spring species. Pseudopanurgus - ♂Clypeus bright yellow. Body black. Legs with yellow markings. Head less wide, less square. ♀Entirely dark black. Most of the Other Genera that are Small Black Bees - 3 submarginal cells. Hair, patches/bands of pale hair. ♂Longer antennae
    Nest: Ground, open bare sandy soil
    Flowers: Sand species are found on fall composites, two rare species are found on Maleberry (Lyonia ligustrina) and False Foxglove (Agalinus spp.).
    Notes: Two very rare species (P. gerardiae and P. novaeangliae) are not associated with deep sand.

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Perdita swenki, Swenks Perdita
© Copyright John Ascher, 2006-2014 · 10
Perdita swenki, Swenks Perdita
Perdita swenki, Swenks Perdita
© Copyright John Ascher, 2006-2014 · 10
Perdita swenki, Swenks Perdita

Perdita discreta, male, face
Joshua Thomas · 9
Perdita discreta, male, face
Perdita discreta, male, side
Joshua Thomas · 9
Perdita discreta, male, side

Perdita discreta, male, top side
Joshua Thomas · 9
Perdita discreta, male, top side
Perdita discreta, male, top
Joshua Thomas · 9
Perdita discreta, male, top

Perdita discreta, female, face
Smithsonian Institution, Entomology Department · 9
Perdita discreta, female, face
Perdita discreta, female, side
Smithsonian Institution, Entomology Department · 9
Perdita discreta, female, side

Perdita discreta, female, top
Smithsonian Institution, Entomology Department · 9
Perdita discreta, female, top
Perdita discreta, female, wing
Smithsonian Institution, Entomology Department · 9
Perdita discreta, female, wing

Perdita gerardiae, female, face
Joshua Thomas · 9
Perdita gerardiae, female, face
Perdita gerardiae, female, side
Joshua Thomas · 9
Perdita gerardiae, female, side

Perdita gerardiae, female, top left
Joshua Thomas · 9
Perdita gerardiae, female, top left
Perdita gerardiae, female, top right
Joshua Thomas · 9
Perdita gerardiae, female, top right
Identification
Be particularly careful when looking at scopal hairs in this genus. Scopal hairs in females are often quite sparse, so sparse that they would be considered indicative of a male in other species. Females appear to always have a relatively long scape, similar to Lasioglossum and the males with a quite short scape. You can also count the antennal segments, but because they are so small it can be tedious.

Names
Scientific source:

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FamilyScientific name @ source (records)
Asteraceae  Heterotheca subaxillaris @ I_JSA (3)

Malacothrix @ I_JSA (2)

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Perdita sp.
Perdita sp.
ID: 0000 0000 0215 3276 [detail]
© 2015 John Doyen

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