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Lasioglossum quebecense (Crawford, 1907)
Halictus quebecensis Crawford, 1907; Evylaeus quebecensis (Crawford, 1907)

Life   Insecta   Hymenoptera   Apoidea   Halictidae   Lasioglossum
Subgenus: Sphecodogastra

Lasioglossum quebecense, Mid-Atlantic Phenology
© Copyright source/photographer · 9
Lasioglossum quebecense, Mid-Atlantic Phenology

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    This is a common woodland associated species. Often abundant in bottomlands in early spring. In females, the relatively large size, and the distinctive propodeum can be helpful in identification. The lateral carinae that define the rear face are nearly straight and go all the way to the top. The males look quite different than the females, with very dull, densely pitted scutums, a highly reticulated propodeum, and almost no hairs on the underside of the abdomen. In some cases males can have extensive red on the basal tergites.
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Lasioglossum quebecense FEM CFP comp
© Copyright Laurence Packer 2014 · 7
Lasioglossum quebecense FEM CFP comp
Lasioglossum quebecense MALE CFP comp
© Copyright Laurence Packer 2014 · 7
Lasioglossum quebecense MALE CFP comp

Lasioglossum quebecense
© Copyright John Ascher, 2006-2014 · 6
Lasioglossum quebecense
Lasioglossum quebecense, sweat bee
© Copyright John Ascher, 2006-2014 · 4
Lasioglossum quebecense, sweat bee

Lasioglossum quebecense, sweat bee
© Copyright John Ascher, 2006-2014 · 4
Lasioglossum quebecense, sweat bee
Lasioglossum quebecense F 8775, dorsal body
Deana Crumbling · 1
Lasioglossum quebecense F 8775, dorsal body

Lasioglossum quebecense F 8775, prop carina
Deana Crumbling · 1
Lasioglossum quebecense F 8775, prop carina
Lasioglossum quebecense F 8775, hind tibial spur
Deana Crumbling · 1
Lasioglossum quebecense F 8775, hind tibial spur

Lasioglossum quebecense F 8775, prop tri
Deana Crumbling · 1
Lasioglossum quebecense F 8775, prop tri
Lasioglossum quebecense F 8775, scutum
Deana Crumbling · 1
Lasioglossum quebecense F 8775, scutum

Lasioglossum quebecense F 8775, supraclypeus
Deana Crumbling · 1
Lasioglossum quebecense F 8775, supraclypeus
Lasioglossum quebecense F 8775, wing veins
Deana Crumbling · 1
Lasioglossum quebecense F 8775, wing veins

Lasioglossum quebecense F, cheek striations1
Deana Crumbling · 1
Lasioglossum quebecense F, cheek striations1
Lasioglossum quebecense F, cheek striations2
Deana Crumbling · 1
Lasioglossum quebecense F, cheek striations2
Overview
Reprinted with permission from: Mitchell, T.B. 1960 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 141.

FEMALE—Length 7 mm.; black; pubescence white, rather thin except on thorax laterally; length and breadth of head equal; clypeus slightly rounded, projecting about two- thirds below suborbital line; eyes only very slightly convergent below; cheeks subequal to eyes in width; lateral ocelli slightly nearer margin of vertex than to eyes; face above antennae dull, very densely and finely punctate, punctures of face below antennae quite sparse, the surface tessellate except on clypeus apically; area between eyes and ocelli densely punctate, vertex medially dull, obscurely sculptured, the cheeks finely striate above, becoming somewhat more coarsely so medially, but ventral portion quite smooth; scutum densely tessellate between rather fine and shallow punctures, these well separated in central portion of disc, becoming very close laterally; scutellum dull, punctures well separated on each side of a slight, median impression where punctures are closer; pleura with rather low but coarse reticulations above, becoming relatively smooth but densely tessellate below; dorsal area of propodeum somewhat shining, rather coarsely striate, posterior face quite smooth, bordered laterally with low but quite distinct carinae which reach the dorsal margin; wings subhyaline, veins and stigma testaceous; tegulae dark anteriorly except for the hyaline anterior border, becoming more ferruginous posteriorly; legs dark except for the apical, reddened, tarsal segments; hind basitibial plate small, triangular, acute; abdominal terga rather dull, punctures exceedingly minute and obscure, not visible except at very high magnification, terga 2 and 3 with thin and inconspicuous, apical fasciae slightly evident laterally, without distinct basal fasciae, discal pubescence extremely short, thin and entirely pale.

MALE—Length 6-8 mm.; black; labrum, apical half of clypeus and legs in part, yellowish; pubescence whitish, very short and thin; length and breadth of head equal; clypeus rather narrow and protuberant, projecting about two thirds below suborbital line; eyes rather strongly convergent below; mandibles simple, not greatly elongated, entirely dark; labrum transverse, without a median projection, entirely yellow; cheeks slightly narrower than eyes; lateral ocelli slightly nearer margin of vertex than to eyes; basal segment of flagellum very short, not much longer than broad, but somewhat longer than pedicel, the second and following segments elongate, fully twice as long as broad, ferruginous below, piceous above, face above antennae, dull, densely rugoso-punctate, becoming somewhat shining below between the fine and rather close punctures, these becoming more coarse and sparse on apical half of clypeus; area between eyes and ocelli dull, roughened, the vertex medially dull, with obscure transverse striations, cheeks finely striate; scutum tessellate between fine and quite close punctures, these somewhat separated near center posteriorly but very closely crowded laterally; scutellum dull, very closely punctate throughout, with a very slight median impression; pleura dull and rather finely rugose above, becoming somewhat more shining and with obscure reticulations below; dorsal area of propodeum rather coarsely rugoso-striate, posterior face coarsely reticulate, the lateral carinae rather indefinite; wings subhyaline, veins and stigma brownish-testaceous; tegulae rather dark ferruginous, with a broad, yellowish-hyaline, anterior border; legs dark basally, tibiae dark except for basal and apical yellowish spots, front tibiae yellowish anteriorly, all of tarsi yellowish; abdominal terga somewhat shining, punctures very fine but rather deep and distinct, scattered on basal tergum, but close basally on the following terga, becoming sparse or absent apically, with only very obscure and indefinite, basal, whitish fasciae evident laterally on terga 2 and 3; apical margin of sternum 5 straight, 6 rather broadly rounded; gonostylus short, truncate, only thinly pubescent, the ventral, retrorse lobe quite short, attenuated apically, thinly pubescent along outer side.

DISTRIBUTION — Newfoundland and Nova Scotia to Minnesota, south to Georgia; April to September.

FLOWER RECORDS—Acer, Aruncus, Azalea, Barbarea, Berteroa, hex, Melilotus, Rubus, Solidago, Taraxacum, Vaccinium and Viburnum. Brittain and Newton (1934) record it also on Kalmia, Malus and Prunus.


Identification
This is a large species, 7.5-8mm, in the male the rear face of the propodeum with lateral raised lines that rise up to form a v-shaped fork at the top almost reaching the rim of the triangle, the triangle striations weak, widely spaced, not raised very high, reaching to the rim, grey appressed short hairs of metanotum go from narrow on the sides and increase to fill the entire width in the center, similar hair on outside of pronotum, but the only Newfoundland specimen had only a restricted amount. Holotype seen.
John Ascher adds the following additional guides to the identification of this species:
1) This species has (weak) apical hair bands which Lasioglossum supposedly lack; these are lacking in species with which it could be confused such as L. cinctipes, rufitarse, etc.
2) It has a tesselate (not smooth) scutum unlike L. cintipes/truncatum
3) It is very close to L. comagenense but has a longer face, more southeren range, subtly different hair patterns and sculpturing, etc.

Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Amaryllidaceae  Allium cepa @ CUIC_ENT (3)
Anacardiaceae  Rhus typhina @ CUIC_ENT (1)
Asteraceae  Aster lateriflorus @ CUIC_ENT (3)

Cichorium intybus @ CUIC_ENT (1)

Erigeron @ CUIC_ENT (1)

Eupatorium maculatum @ CUIC_ENT (1)

Eurybia macrophylla @ CUIC_ENT (3)

Gutierrezia sarothrae @ AMNH_BEE (2)

Helianthus @ CUIC_ENT (1)

Solidago graminifolia @ CUIC_ENT (1)

Solidago @ CUIC_ENT (4)

Sonchus arvensis @ CUIC_ENT (3)

Taraxacum campylodes @ CUIC_ENT (21)

Taraxacum namaensis @ CUIC_ENT (1)

Tussilago farfara @ CUIC_ENT (5)

Tussilago @ CUIC_ENT (1)
Berberidaceae  Berberis @ CUIC_ENT (1)
Brassicaceae  Barbarea vulgaris @ CUIC_ENT (106)

Cardamine concatenata @ CUIC_ENT (2)
Caprifoliaceae  Abelia chinensis @ CUIC_ENT (1)
Cornaceae  Cornus alba @ CUIC_ENT (1)

Cornus stolonifera @ CUIC_ENT (5)
Cucurbitaceae  Cucumis sativus @ AMNH_BEE (1)
Ericaceae  Ledum groenlandicum @ CUIC_ENT (1)

Lyonia ligustrina @ CUIC_ENT (1)

Rhododendron @ I_JSA (2)

Vaccinium sp @ CUIC_ENT (6)

Vaccinium stamineum @ CUIC_ENT (2)

Vaccinium @ CUIC_ENT (37)
Fabaceae  Medicago sativa @ CUIC_ENT (1)

Melilotus officinalis @ CUIC_ENT (2)
G. cangialosi  915 @ JRYB__SHEN (3)
J. rykken  1022 @ JRYB__SHEN (1)

1026 @ JRYB__SHEN (1)

1048 @ JRYB__SHEN (2)

1060 @ JRYB__SHEN (1)

1081 @ JRYB__SHEN (1)

1088 @ JRYB__SHEN (2)

582 @ JRYB__SHEN (1)

737 @ JRYB__SHEN (2)

808 @ JRYB__SHEN (1)

832 @ JRYB__SHEN (2)

983 @ JRYB__SHEN (2)
Liliaceae  Erythronium americanum @ CUIC_ENT (1)
Onagraceae  Epilobium anagallidifolium @ AMNH_BEE (1)
Orchidaceae  Triphora trianthophora @ CUIC_ENT (4)
Polygonaceae  Fagopyrum esculentum @ CUIC_ENT (3)
Portulacaceae  Claytonia virginica @ I_JSA (1)
R. minor  808 @ JRYB__SHEN (1)
Rosaceae  Amelanchier arborea @ CUIC_ENT (1)

Amelanchier sp @ CUIC_ENT (1)

Aruncus aruncus @ AMNH_BEE (3); CUIC_ENT (1)

Malus domestica @ CUIC_ENT (1)

Potentilla recta @ CUIC_ENT (2)

Prunus @ CUIC_ENT (3)

Rubus sp @ CUIC_ENT (3)

Rubus @ CUIC_ENT (7)

Spiraea @ CUIC_ENT (6)
Salicaceae  Salix sp @ CUIC_ENT (3)

Salix @ CUIC_ENT (14)
_  apple @ NLA (1)

blueberry @ NLA (1)

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Updated: 2018-09-20 23:02:41 gmt
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