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Epeolus Latreille
Life   Insecta   Hymenoptera   Apoidea   Apidae
Subgenus: None

Epeolus interruptus, male AMNH BEE00011022-3
© Copyright Hadel Go 2011-2016 · 9
Epeolus interruptus, male AMNH BEE00011022-3

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

    Uncommon nest parasite of summer and fall Colletes bees. Generally smallish and densely arrayed in short flattened and prone hairs creating bold patterns of black and white bands and islands.

    Field Marks: ♀♂Lacks long hair. Integument black except legs often red or reddish, rarely with red on base of antennae, head, and thorax (Most noticeable in E. bifasciatus). All visible hair short, flattened, and prone. Abdomen with striking bands of black and white hairs, particularly noticeable on first abdominal segment. Thorax, upper surface, sides of rear edge with two small triangular projections (axillae). Thorax, upper side, pattern of hair often, but not always appears like the classic “smiley face.” ♀Hind legs with same short hair length as other legs. ♂With small, narrow, parallel-sided, bare plate (pygidial plate) with a rounded end at the very tip of its abdomen.

    Flight Season: Summer and fall.

    Size Relative to Honey Bee: 0.5–0.75X.

    Position of Wings Feeding on Flowers: Most of the time up and out at about 45° to the body; appearing narrow-winged as hind and fore wings overlap, somethings closes wings across back if staying in one place for a time.

    Location of Pollen Carrying Hairs: None, nest parasite.

    Similar Genera: Triepeolus - On average, larger, more common, but lots of overlap between the two genera and almost impossible to tell apart in the field. However, within the two groups a few have species-specific unique characters that can be used for separation, and will be covered in greater detail in a publication at the species level.

    Nest: Nest parasite of Colletes.

    Flowers: Nectars at a variety of flowers.

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Epeolus bifasciatus
© Copyright Hadel Go 2014 · 9
Epeolus bifasciatus
Epeolus bifasciatus
© Copyright Hadel Go 2014 · 9
Epeolus bifasciatus

Epeolus basili, Axillae mesoscutellum female paratype scale = . mm
Thomas Onuferko · 9
Epeolus basili, Axillae mesoscutellum female paratype scale = . mm
Epeolus basili, Dorsal view female holotype scale = mm
Thomas Onuferko · 9
Epeolus basili, Dorsal view female holotype scale = mm

Epeolus basili, Lateral view female holotype scale = mm
Thomas Onuferko · 9
Epeolus basili, Lateral view female holotype scale = mm
Epeolus basili, Lateral view male allotype scale = mm
Thomas Onuferko · 9
Epeolus basili, Lateral view male allotype scale = mm

Epeolus basili, Pseudopygidial area female paratype scale bar = mm
Thomas Onuferko · 9
Epeolus basili, Pseudopygidial area female paratype scale bar = mm
Epeolus basili, Ventral view female paratype scale bar = mm
Thomas Onuferko · 9
Epeolus basili, Ventral view female paratype scale bar = mm

Epeolus mesillae, Axillae mesoscutellum female scale = . mm
Thomas Onuferko · 9
Epeolus mesillae, Axillae mesoscutellum female scale = . mm
Epeolus mesillae, Dorsal view female scale = mm
Thomas Onuferko · 9
Epeolus mesillae, Dorsal view female scale = mm

Epeolus mesillae, Head frontal view female scale = mm
Thomas Onuferko · 9
Epeolus mesillae, Head frontal view female scale = mm
Epeolus mesillae, Lateral view female scale = mm
Thomas Onuferko · 9
Epeolus mesillae, Lateral view female scale = mm

Epeolus mesillae, Lateral view male P. mesillae neotype scale = mm
Thomas Onuferko · 9
Epeolus mesillae, Lateral view male P. mesillae neotype scale = mm
Epeolus flavofasciatus, Axillae mesoscutellum female scale = . mm
Thomas Onuferko · 9
Epeolus flavofasciatus, Axillae mesoscutellum female scale = . mm
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Overview

The following material taken with permission from: Mitchell, T.B. 1962. Bees of the Eastern United States, Volume II. North Carolina Agricultural Experiment Station. Tech. Bul. No.152, 557 p.

This is a quite extensive group of bees, parasitic usually on Colletes. It is closely related to Triepeolus and resembles that genus in having acutely pointed axillae and in being variously ornamented with appressed pale tomentum. The marginal cell is rather short, its length not exceeding the distance from its tip to the apex of the wing. The maxillary palpi are short, 2-segmented, with a fixed basal segment and one free apical segment. The eyes are strongly convergent below; the cheeks are very narrow, one half or less the width of the eyes; and the antennal scape is short, little more than half as long as distance from the fossa to the anterior ocellus.

Except for the apical segments of the abdomen and genital structures, species of Epeolus are usually monomorphic, with little or no, difference between the sexes with respect to size, color, pattern of pubescence and sculpture.


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Asteraceae  Centaurea @ I_JSA (1)

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