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Andrena barbilabris (Kirby, 1802)
Apis sericea_homonym Christ, 1791; Melitta albicrus Kirby, 1802; Andrena albo-cincta Zetterstedt, 1838; Andrena albocincta Zetterstedt, 1838; Andrena barbatula Zetterstedt, 1838; Andrena parumpunctata Schenck, 1853; Andrena placida Smith, 1853; Andrena angustipes Schenck, 1866; Andrena ciliata_homonym Schenck, 1870; Andrena macilenta Provancher, 1888; Andrena macgillivrayi Cockerell, 1897; Andrena salicacea Robertson, 1900; Andrena sapellonis Cockerell, 1900; Andrena pauperata Pérez, 1902; Andrena ciliatula Viereck, 1916, replacement name; Andrena sericea var malaisei Alfken, 1929; Andrena (Euandrena) taisetsusana Tadauchi and Hirashima, 1987; Andrena (Andrena) dolharubang Tadauchi and Xu, 1997

Life   Insecta   Hymenoptera   Apoidea   Andrenidae   Andrena
Subgenus: Leucandrena

Andrena barbilabris, female, side
Smithsonian Institution, Entomology Department · 9
Andrena barbilabris, female, side

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Andrena barbilabris, female, wing
Smithsonian Institution, Entomology Department · 9
Andrena barbilabris, female, wing
Andrena barbilabris FEM CFP comp
© Copyright Laurence Packer 2014 · 7
Andrena barbilabris FEM CFP comp

Andrena barbilabris MALE CFP
© Copyright Laurence Packer 2014 · 7
Andrena barbilabris MALE CFP
Andrena barbilabris, U, Back, MD, Howard County ---.. ZS PMax
© Copyright source/photographer · 5
Andrena barbilabris, U, Back, MD, Howard County ---.. ZS PMax

Andrena barbilabris, U, Face, MD, Howard County ---.. ZS PMax
© Copyright source/photographer · 5
Andrena barbilabris, U, Face, MD, Howard County ---.. ZS PMax
Andrena barbilabris, U, Face, PG county, MD ---.. ZS PMax
© Copyright source/photographer · 5
Andrena barbilabris, U, Face, PG county, MD ---.. ZS PMax

Andrena barbilabris, U, Side, MD, Howard County ---.. ZS PMax
© Copyright source/photographer · 5
Andrena barbilabris, U, Side, MD, Howard County ---.. ZS PMax
Andrena barbilabris, U, Side, PG county, MD ---.. ZS PMax
© Copyright source/photographer · 5
Andrena barbilabris, U, Side, PG county, MD ---.. ZS PMax

Andrena barbilabris, male, cheek
© Rebekah Andrus Nelson · 2
Andrena barbilabris, male, cheek
Andrena barbilabris, figure41d
Mitchell, Bees of the Eastern United States, Vol. I, 1960 · 1
Andrena barbilabris, figure41d

Andrena barbilabris, figure42d
Mitchell, Bees of the Eastern United States, Vol. I, 1960 · 1
Andrena barbilabris, figure42d
Andrena barbilabris, face
Smithsonian Institution, Entomology Department · 1
Andrena barbilabris, face

Andrena barbilabris, side
Smithsonian Institution, Entomology Department · 1
Andrena barbilabris, side
Andrena barbilabris, top
Smithsonian Institution, Entomology Department · 1
Andrena barbilabris, top
Overview
Reprinted with permission of the American Entomological Society from: LaBerge, W. E. 1987. A revision of the bees of the genus Andrena of the Western Hemisphere. Part XII. Subgenera Leucandrena, Ptilandrena, Scoliandrena and Melandrena. Transactions of the American Entomological Society 112: 191-248.

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Andrena barbilabris is a common, holarctic, polylectic, vernal bee. It can be separated from other members of the subgenus in North America by the entire, strap-shaped labral process of the female, the weak pronotal angle and ridge, the relatively shiny terga, and the moderately rugulose propodeal enclosure. The clypeus of the female has erect hairs throughout (similar to most Parandrena): the clypeus of the male is often slightly flattened posteromedially. The male has a reasonably distinct pygidium-like area medially on sternum 7 (as in Andrena banksi Malloch). This is the first time that Andrena placida Smith of the New World has been synonymized with Andrena barbilabris Kirby of the Old World. The present author can find no consistent difference between the European and American specimens available to him for study. Indeed, the North American material exhibits considerable intraspecific variation, which swamps any slight differences between these and the specimens from Europe. The synonymy given above is complete only for the names applied to the North American bees. It includes all names known to the author to have been applied to this species in the Old World and at least one citation for each name referring to original synonymy or homonymy.

FEMALE. MEASUREMENTS AND RATIOS. — N = 20; length, 9-12 mm; width, 2.5-4.0 mm; wing length, M = 3.8 ± 0.142 mm; FL/FW, M = 1.01 ± 0.004; FOVL/FOVW, M = 3.28 ± 0.046.

INTEGUMENTAL COLOR. — Black except as follows: mandible with apical third of more rufescent; flagellar segments 2-10 dark reddish-brown below; tegula rufescent; wing membranes hyaline, only slightly yellowed, veins dark red to reddish-brown; distitarsi dark brown to reddish-brown; tibial spurs testaceous; terga with apical margin narrowly hyaline.

STRUCTURE. — Antennal scape length equals first three and one-third to three and one-half flagellar segments; segment 2 about as long as 3, broader than long; median segments as long as broad or longer. Eyes each about three and three-fourths times as long as broad, inner margins usually converging slightly toward mandibles. Mandibles long, when closed surpassing midlabrum by half to one-third length. Malar space short linear. Galea pointed, outer apical margin slightly concave, surface opaque, dulled by fine tessellation. Maxillary palpus exceeds galea by slightly more than last two segments; segmental ratio about as 1.0:1.0:0.7:0.7:0.6:0.6. Labial palpus with first segment curved, slightly flattened; segmental ratio about as 1:0:0.6:0.6:0.6. Labral process large, entire, strap-shaped or U-shaped, shiny; labrum below process large, with weak median crista or cristae lacking; shiny with minute scattered punctures. Clypeus with distinct, longitudinal, median, raised ridge, with round punctures separated by half to one puncture width, smaller laterally and posteriorly, often sparser posteriorly, surface dulled by fine tessellation especially posteriorly. Supraclypeal area dulled by dense minute punctures. Face above antennal fossae dulled by longitudinal rugulae and interrugal punctures. Facial fovea long, broad, separated from lateral ocellus by one ocellar diameter or slightly less. Vertex short, above lateral ocellus distinctly less than one ocellar diameter, dull, punctate and tessellate. Genal area in profile broader than eye (about as 5:6); surface dull, minutely punctate, shagreened except in narrow zone near eye.

Pronotum laterally with weak humeral angle, usually lacking dorsoventral ridge or ridge weak and apparent only near angle; surface dull, shagreened. Mesoscutum opaque, finely tessellate with small round punctures separated mostly by two to three puncture widths. Scutellum similar but punctures more evident. Mesepisternum with obscure punctures separated mostly by one puncture width or less, finely tessellate. Propodeum with dorsal enclosure areolate mediobasally or entirely; outside of enclosure opaque, tessellate with punctures roughening surface.

Metasomal terga moderately shiny to shiny, with minute scattered punctures, shagreening weak if at all evident. Pygidial plate large, V-shaped with rounded apex, with distinct raised internal triangular area. Sterna with basal areas with crowded punctures and shagreening dulling surfaces, narrow apical margins impunctate.

VESTITURE. — Generally white to ochraceous except as follows: dark specimens with dorsum of thorax dark ochraceous, posterior half of scopal hairs dark brown, and terga 5 and 6 dark brown. Palest specimens white except terga 5 and 6 brown apically. Clypeus with hairs erect over entire surface; terga 2-4 with apical white fasciae but often interrupted medially on tergum 2 or 2 and 3. Sterna 2-5 with weak subapical pale fimbriae. Propodeal corbiculum complete with several long simple internal hairs; trochanteral flocculus complete, thick; tibial scopal hairs long, simple.

MALE. MEASUREMENTS AND RATIOS. — N = 20; length 8-10 mm; width, 2-3 mm; wing length, M = 3.41 ± 2.16 mm; FL/FW, M = 1.04 ± 0.006; FS1/FS2, M = 1172 ± 0.034.

INTEGUMENTAL COLOR. — As in female except wing veins usually red, terga with apical area more broadly hyaline, distitarsi often red.

STRUCTURE. — Antennae long, reaching at least midscutellum in repose; scape length equals first two and one-third flagellar segments or slightly more; flagellar segment 1 about as long as segments 2 plus 3; segment 2 quadrate, succeeding segments longer than broad. Eyes each about three times as long as broad, inner margins converging toward mandibles. Mandibles, malar space and galeae as in female. Maxillary palpus as in female but segmental ratio about as 1.0:1.0:0.8:0.8:0.7:0.7. Labial palpus as in female. Labral process about as long as broad or slightly longer, entire and quadrate or gently emarginate apically. Clypeus with small round punctures separated mostly by one or more puncture widths, smaller and sparser basad and laterad, mediobasally often somewhat flattened; surface dulled by fine tessellation; without median longitudinal ridge or ridge only weakly developed. Supraclypeal area as in female. Face above antennal fossae with longitudinal rugae, often diverging towards ocelli below. Vertex as in female. Genal area broader than eye in profile, sculptured as in female.

Pronotum as in female. Mesoscutum opaque, finely tessellate, punctures minute, obscure. Scutellum similar but punctures more evident. Propodeum as in female. Mesepisternum dull, finely tessellate, with punctures separated mostly by more than one puncture width.

Metasomal terga sculptured as in female but usually not as shiny, reticular shagreening more evident. Tergum 7 with shiny median pygidial area three to four times as long as broad with rounded apex. Sterna 2-5 as in female but basal areas with punctures separated mostly by three or more puncture widths. Sternum 6 with apical margin turned down but not sharply reflexed. Sternum 7 bidentate apically. Sternum 8 short, flat, entire. Penis valves moderately broadened medially, tips narrow; dorsal lobe of gonocoxite relatively narrow, elongate (Figs. 6-10).

VESTITURE. — Generally white to ochraceous as in female but terga 2-5 with narrow apical pale fasciae usually interrupted medially on terga 2 and 3, sterna 2-5 with distinct subapical fimbriae of short white hairs, and lacking pollen-collecting hairs. Hind legs and last two terga never with brown hairs as in some females.

Identification



Reprinted with permission from: Mitchell, T.B. 1960. Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 141.

Synonymous name : Andrena Placida

FEMALE—Length 10 mm.; clypeus broadly convex, projecting somewhat less than one- half below suborbital line, surface dull, finely tessellate, rather sparsely and finely punctate medially, punctures becoming close and fine laterally; facial foveae narrow, occupying above about half the space between eyes and ocelli (as in recta, fig. 43), covered with silvery tomentum; space between margin of vertex and lateral ocelli somewhat less than diameter of ocelli; cheeks broader than eyes, rounded posteriorly, rather smooth, punctures very minute and obscure; malar space very short; basal segment of flagellum longer than 2nd and 3rd combined; process of labrum elongate, rounded apically, fully as long as broad; mandibles of the usual length, with a distinct inner subapical tooth; pubescence of head, thorax and legs entirely pale, tinged with yellowish on vertex and dorsum of thorax, more whitish below and on the more basal leg segments; thoracic integument dull, tessellate, punctures of scutum and scutellum fine and shallow, sparse except over anterior portion of scutum; pleura without evident punctures; enclosure of propodeum very finely rugose; propodeal corbicula rather short, with a distinct anterior fringe, whitish; trochanteral fioccus well developed, long and white; hind tibial scopa well developed, white, with a few inconspicuous, brownish hairs posteriorly, hairs simple, of moderate length; hind tibiae slender and elongate, not much wider than their basitarsi, front and middle basitarsi slightly narrower than their respective tibiae; 2nd submarginal cell considerably shorter than 3rd, receiving 1st recurrent slightly beyond middle; apical depressed areas of abdominal terga occupying about one-third the median length of the discs, entirely impunctate, becoming yellowish-hyaline along rims, discs somewhat shining, nearly impunctate, the punctures exceedingly minute, sparse and obscure, discal pubescence entirely pale, short, suberect and thin, terga 2-4 with thin, white, apical fasciae, that on tergum 2 broadly interrupted medially, tergum 5 with a brownish, apical fimbria.

MALE—Length 8 mm.; clypeus very slightly convex, projecting but very slightly below suborbital line, dull, finely punctate, punctures well separated medially, becoming close laterally beneath the dense, whitish pubescence; space between margin of vertex and lateral ocelli subequal to their diameter; cheeks slightly broader than eyes, rounded posteriorly, rather smooth punctures exceedingly minute and obscure; malar space extremely short; basal segment of flagellum longer than 2nd segment, but shorter than 2nd and 3rd combined; process of labrum quite narrow and elongate, rounded apically, its median length subequal to its breadth; mandibles of moderate length, slender, slightly curved, with a distinct inner subapical tooth, overlapping about one-third; pubescence of entire head, thorax and legs whitish; thoracic integument dull, quite densely tessellate, punctures of dorsum of thorax very shallow, obscure and sparse except across anterior portion of scutum, where they are somewhat closer and more coarse; pleura more finely subrugose; enclosure of propodeum finely rugose; all basitarsi slender and elongate, considerably narrower than their respective tibiae; 2nd submarginal cell much shorter than 3rd, receiving 1st recurrent slightly beyond middle; abdominal terga smooth, somewhat shining, nearly impunctate, punctures exceedingly minute and obscure, quite sparse, apical depressed areas rather shallow, occupying about one-third median length of discs, becoming yellowish-hyaline along rims, discal pubescence thin, erect, pale, terga 2-4 with thin, whitish, apical fasciae, that on tergum 2 widely interrupted medially; apical portion of sternum 8 rather robust, sides nearly parallel, apex truncate, ventral protuberance low and inconspiciuous, with short but dense pubescence from this to near the tip; penis valves slightly expanded basally, not excavated, gonocoxites somewhat dilated apically, gonocoxal lobes strongly produced, rather slender, narrowly rounded apically.

DISTRIBUTION—According to the Catalog of Hymenoptera, this is transcontinental in Southern Canada and the Northern United States. Specimens have been seen from the following states: Illinois, Maryland, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Virginia, Washington (state); April—July.

FLOWER RECORDS — Amelanchier, Fragaria, Prunus and Viburnum, Recorded by Brittain & Newton (1934) on Acer, Pyrus malus and Taraxacum.


Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Asteraceae  Taraxacum campylodes @ CUIC_ENT (5)

Taraxacum officinale @ BBSL (5)
Brassicaceae  Barbarea vulgaris @ CUIC_ENT (25)

Lesquerella sp @ BBSL (1)
Cornaceae  Cornus mas @ CUIC_ENT (3)
Ericaceae  Rhododendron mucronulatum @ CUIC_ENT (1)
Hydrophyllaceae  Phacelia sp @ BBSL (1)
Iridaceae  Crocus sp @ CUIC_ENT (1)
Polycitoridae  Salix sp @ BBSL (4)
Rosaceae  Amelanchier alnifolia @ BBSL (1)

Malus pumila @ BBSL (2)

Malus @ UCMS_ENT (1)

Potentilla anserina @ CUIC_ENT (4)

Prunus americana @ AMNH_BEE (4)

Prunus virginiana @ BBSL (4); AMNH_BEE (7)

Pyracantha sp @ CUIC_ENT (7)

Rubus sp @ CUIC_ENT (2)
Salicaceae  Salix sp @ CUIC_ENT (18)
_  Withheld @ BBSL__YOSE (7); BBSL (54); BBSL__ZION (22)

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Following modified from Slovenian Museum of Natural History
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Female digging her nest burrow. Iški Vintgar, May 2006.

 

Andrena barbilabris (Kirby, 1802)

 

 

Eurosiberian species. In the pre-Alpine, Dinaric and sub-Pannonian regions of Slovenia.

Polylectic species. Nests in burrows in the ground, excavated by itself.

Bivoltine in the Netherlands and Germany (Westrich 1990), but has only one generation a year in Slovenia, where it flies from April to June.

 

A couple near the nest. Iški Vintgar, May 2006.

 

Female on Salix . Snežnik, 1700 m, June 2008

 

Razširjenost vrste v Sloveniji.

 

 

Andrej Gogala: Bee fauna of Slovenia

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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Andrena+barbilabris&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Animal ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Andrena+barbilabris&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Animal
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Updated: 2017-12-18 09:43:40 gmt
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