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Andrena accepta, female, back 2012-08-02-17 |
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Andrena accepta, female, face 2012-08-02-17 |
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© Copyright Laurence Packer 2014
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Andrena accepta FEM mm .x ZS PMax |
© Copyright John Ascher, 2006-2014
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Andrena accepta, andrenine bee |
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© Copyright John Ascher, 2006-2014
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Andrena accepta, andrenine bee |
© Copyright John Ascher, 2006-2014
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Andrena accepta, andrenine bee |
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© Copyright John Ascher, 2006-2014
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Andrena accepta, andrenine bee |
© Copyright Micheal Veit 2010
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Andrena accepta, f on Heliopsis -- |
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Mitchell, Bees of the Eastern United States, Vol. I, 1960 · 1
Andrena accepta, figure24h |
Mitchell, Bees of the Eastern United States, Vol. I, 1960 · 1
Andrena accepta, figure25c |
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© Rebekah Andrus Nelson
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Andrena accepta, male, face |
© Rebekah Andrus Nelson
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Andrena accepta, female, face |
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© Copyright source/photographer
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Andrena accepta, female, face |
© Copyright source/photographer
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Andrena accepta, male, genital armature |
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Overview |
Reprinted with permission of the University of Nebraska State Museum from:
LaBerge, W. E. 1967. A revision of the bees of the genus Andrena of the Western Hemisphere. Part I. Callandrena (Hymenoptera: Andrenidae). Bulletin of the University of Nebraska State Museum 7: 1-316.
Please report text errors to: leah at discoverlife dot org.
Andrena accepta is a moderately large bee found throughout most of the United States and into northern Mexico. The female can be recognized by the yellow parocular areas, the black clypeus and the shiny, punctate terga. The males are also marked by large yellow parocular maculae and have the clypeus almost entirely yellow as well. The males are also distinguished by the moderately coarse tergal punctation and by the fine transverse rugulae on the propodeal enclosure. Both sexes are characterized by a very high vertex which extends above the lateral ocelli by two to three ocellar diameters. The genal area in both sexes is broad, being considerably broader than the eye in lateral view.
FEMALE. MEASUREMENTS AND RATIOS. — N = 20; length, 11.0-12.5 mm; width, 3.5-4.5 mm; wing length, M = 4.03 ± 0.130 mm; FL/FW, M = 1.40 ± 0.026; FOVL/FOVW, M = 2.08 ± 0.027.
INTEGUMENTAL COLOR. — Head black except as follows: clypeus with small yellow areas posteromedially and laterally; parocular areas yellow to level of antennal fossae. Antennae dark red below. Thorax black; tegulae hyaline, yellow. Wing membranes hyaline, colorless; veins dark yellowish-brown to black. Terga 1-5 broadly hyaline apically, colorless to yellow. Sterna somewhat rufescent, hyaline apically. Distitarsi rufescent; tibial spurs yellow.
STRUCTURE. — Flagellar segments 1-3 slightly shorter than scape, segments 2 and 3 shorter than 1 and each shorter than succeeding segments. Eyes about three times as long as broad or slightly longer, with inner margins subparallel to slightly converging above. Malar space extremely short, less than one-fifth as long as broad. Mandible in repose extends one-third of its length or slightly more beyond middle of labrum, with well-developed ventrobasal lamella. Galea opaque, densely tessellate, lateral surface less than half as broad as dorsal surface. Maxillary palpus short, not reaching apex of galea, segmental ratio about 1.5:1.5:1.0:1.0:0.7:1.5. Labial palpal segments 1-3 strongly compressed, segment 1 strongly curved basally, segmental ratio about 1.6:1.0:0.7:0.8. Labral process short, about three times as broad as long, with small median emargination. Clypeus flat with round, coarse, irregularly spaced punctures crowded peripherally, sparse or absent medially. Supraclypeal area with small to minute, crowded punctures and reticular shagreening dulling surface. Genal area broad, almost twice as broad as eye in profile, with minute round punctures separated by one or more puncture widths, surface shiny. Vertex broad, above lateral ocelli equals 2-3 ocellar diameters, with small round punctures sparse above eye and ocelli, becoming crowded at apex. Face above antennae with distinct longitudinal rugae, interrugal spaces with small round punctures. Facial fovea extremely short, less than half length of eye, about two times as long as broad, rounded above, pointed below.
Pronotum with minute punctures crowded above, sparse laterally, surfaces moderately shiny to dulled by fine reticular shagreening. Mesoscutum with dense, regular, round punctures separated by one-half a puncture width, surface dulled by fine reticular shagreening, Scutellar punctures similar but sparser medially, surface shiny to moderately shiny, shagreening sparse. Propodeum with enclosure with extremely fine transverse rugulae, surface dulled by reticulotransverse shagreening; lateral area with small sparse punctures, surface dulled by dense reticular shagreening; posterior surface with punctures and reticular shagreening similar to mesoscutum; corbicular areas moderately shiny, reticularly shagreened. Mesepisternum with small round punctures separated mostly by one to two puncture widths, surface dulled by dense reticular shagreening. Metepisternum with minute punctures half diameter of mesepisternal and separated mostly by one puncture width, surface shiny, unshagreened. Middle basitarsus not markedly expanded, broadest medially, slightly broader than hind basitarsus, more than twice as long as broad. Hind tibia moderately cuneate, slightly curved, about four times as long as broad. Tibial spurs normal. Wing with pterostigma linear, more than four times as long as broad, vein 1st m-cu meets second submarginal cell slightly beyond middle.
Metasomal tergum 1 with punctures deep, round, regularly spaced, separated mostly by one-half puncture width, smaller near apex, narrow apical margin impunctate, surface shiny with extremely sparse and delicate shagreening. Terga 2-4 similar but shagreening denser. Tergum 5 with punctures obscured by dense shagreening. Pygidial plate broad at base, V-shaped, with apex rounded. Sterna 2-6 impunctate basomedially, with scattered punctures apically and laterally, surface dulled by regular reticular shagreening.
VESTITURE. — Head hairs ochraceous; facial foveal hairs pale ochraceous to white. Thoracic hairs ochraceous, yellowish to yellowish-orange above. Propodeal corbicula complete with internal compound hairs at least in upper half. Tergal vestiture ochraceous; terga 1-4 with weak apical fasciae. Sternal hairs ochraceous; sterna 2-5 with long barbed hairs near apices, shorter medially. Trochanteral flocculus complete. Tibial scopal hairs of medium length, becoming rather short apically, with short barbs in outer half to three-fifths. Leg hairs ochraceous to white, becoming reddish on inner surfaces of tarsi.
MALE. MEASUREMENTS AND RATIOS. — N = 20; length, 9.5-12.5 mm; width, 2.5-3.5 mm; wing length, M = 3.66 ± 0.130 mm; FL/FW, M = 1.41 ± 0.007; FS1/FS2, M = 2.82 ± 0.059.
INTEGUMENTAL COLOR. — Color as in female except as follows: clypeus yellow except broad apical margin with small lobes extending onto clypeus and maculae at tentorial pits black; wing veins yellow to dark red; distitarsi yellow to red, basitarsi red, middle and hind tibiae often rufescent, fore tibia and middle and hind femora often rufescent.
STRUCTURE. — Antennae short, barely reaching tegulae in repose; scape longer than flagellar segments 1-3; flagellar segment 1 longer than 2 plus 3. Eye about three limes as long as broad, converging slightly toward mandibles. Malar space, mandibles and galeae as in female except mandibles without ventrobasal lamellae. Maxillary palpal ratio about 1.7:1.8:1.2:1.0:1.1:1.5. Labial palpus as in female. Labral process strongly bidentate, reflexed. Clypeus protruding distinctly below lower level of eyes, with small round punctures of irregular size separated by less than one to three or four puncture widths, surface shiny. Supraclypeal area, front, genal area and vertex as in female. Sculpturing of thorax as in female except as follows: mesoscutum shiny, shagreening sparse; propodeum with enclosure with fine transverse rugulae near apex medially.
Metasomal terga sculptured as in female but surfaces shinier, shagreening sparse. Sterna much as in female but less punctate. Sternum 6 with shallow apical V-shaped emargination, with abundant, moderately short hairs arising from small punctures on shiny surface.
Sternum 7 (Fig. 38) with basal apodemes turned slightly inward; deeply emarginate apically, processes on either side of emargination with short sparse hairs. Sternum 8 (Fig. 39) with apex and neck region shorter than basal region; apex deeply emarginate; neck area provided with abundant long hairs. Gonoforceps (Figs. 35-37) in dorsal and ventral views appearing blunt, in lateral view appearing more pointed. Penis valves strongly bent downwards, apex at right angles to base, apex slightly expanded, in lateral view about as long as gonoforceps.
VESTITURE. — Color in general as in female but usually paler, especially above; inner surfaces of tarsi yellow.
TYPE MATERIAL. — The lectotype (INHS) female (here designated) (No. 8637) and the lectoallotype (INHS) male (here designated) (No. 15,215) were collected by Charles A. Robertson at Carlinville, Illinois, in 1888 and 1893, respectively.
Bionomics. A. accepta is an oligolege of Compositae, especially of the genus Helianthus. Table 2 summarizes the floral data taken from specimens available to the author.
DISTRIBUTION. — This species occurs from eastern California and Oregon, east to New Jersey and south to Arizona, northern Mexico and Georgia (Fig. 4). It has been collected from July 27 ill until October 29th, but chiefly during the months of August and September. A total of 345 females and 397 males have been examined. The following list of localities in which A. accepta has been collected includes those from the literature.
ARIZONA: Bridgeport; Kirkland Junction, Yavapai Co.; Nogales; Prescott. CALIFORNIA: Big Pine, Inyo Co. COLORADO: Berkeley; Boulder Co.; Burlington; Coaldale, Fremont Co.; Fort Collins; Fort Morgan; Limon (and 9 miles S. of); Lump Gulch, Gilpin Co.; San Luis Lakes; Turkey Creek; Two Buttes (5 miles W.), Baca Co.; Wiggins (6 miles E.); Wray. GEORGIA: Atlanta; Stone Mountain. IDAHO: Boise; Parma. ILLINOIS: Carlinville; Cicero; Volo. INDIANA: Lafayette. IOWA: Ames; Davis Co.; Hardin Co.; Sioux City. KANSAS: Alien Co.; Baldwin; Baldwin Junction, Douglas Co.; dark Co.; Clay Co.; Cloud Co.; Cullison; DeSoto, Johnson Co.; Douglas Co.; Ellis (3 miles E.); Ellis Co.; Franklin Co.; Garden City (9 miles S.); Garnet; Hutchinson (5 miles N.); Kansas City; Lake View, Douglas Co.; Lakin; Larned; Lawrence; Manhattan; Norton Co.; Phillips Co.; Riley Co.; Scott City (8 miles N.); Sedgwick Co.; Sterling; Sunflower. MARYLAND: Chesapeake Beach. MISSISSIPPI: Hattiesburg. MISSOURI: Hannibal; 0zark Lake; St. Louis. MONTANA: Pompey's Pillar (6 miles N.E.), Yellowstone Co. NEBRASKA: Atkinson (24 miles S.); Bassett (9 miles E.); Bridgeport; David City, Butler Co.; Gavins Point Dam (20 miles N.W. of Crofton); Glen, Sioux Co.; Grant (3 miles N.); Hauler; Halsey; Hardy; Harrison (7 and 13 miles N.); Lincoln; Mitchell; Montrose, Sioux Co.; Monroe Canyon, Sioux Co.; Morrill; Nebraska City; Omaha; Scottsbluff; Toadstool State Park (10 miles N. of Crawford). NEVADA: Fallon, Churchill Co. NEW JERSEY: Kearny; Palmyra. NEW MEXICO: Albuquerque; Algodones; Las Cruces; Rodeo (2.5 miles N.), Hidalgo Co.; San Jon; Tularosa. NEW YORK: White Plains. NORTH CAROLINA: Burgaw. OKLAHOMA: Beaver Co.; Oklahoma City. OREGON: Huntington (4 miles W.), Malheur Co. SOUTH CAROLINA: Sumter. SOUTH DAKOTA: Ardmore; Bad Lands; Dallas (3 miles W.); Elk Point; Hot Springs (5 miles E.). TENNESSEE: Knoxville. TEXAS: Cisco;, Dalhart (10 miles S.W.); Fabens. UTAH: Bluff; Delta; Garfield; Hyrum; Lampo; Lehi; Logan; Myton; North Ogden; Ogden; Petersboro; Sandy, Salt Lake Co.; Springville; Stanish Fork. VIRGINIA: Chain Bridge; Falls Church; Kearney, Arlington Co. WYOMING: Casper (22 miles S. on Bates Creek); Douglas (10 miles S.); Gillette (12 miles E.); Lander (3 miles N.W. on Baldwin Creek); Laramie; Riverton (15 miles N.E.); Shoshoni (5 miles N.); Sundance (6 miles S.). Mexico. CHIHUAHUA: Ciudad Juarez; Salaices. Canada. ALBERTA: Medicine Hat.
FLORAL RECORDS. — Andrena accepta has been collected on the following genera and species of plants. This list includes records reported in the literature.
Aster sp., A. ericoides villosus, Bidens sp., B. aristosa, Cassia chamaecrista, Chrysothamnus sp.. Coreopsis tripteris, Gaillardia pulchella, Grindelia sp., G. squarrosa, Gutierrezia sarothrae Haplopappus sp., Helianthus sp., H. angustifolius, H. annuus, H. divaricatus, H. giganteus, H. grosse-serratus, H. maximilliani, H. petiolaris, H. salicifolius, H. scabberimus, H. strumosus, H. tuberosus, Machaeranthera sp., Medicago sativa, Prionopsis ciliata, Silphium sp., S. integrifolium, S. perfoliatum, S. speciosum, Solidago sp., S. nemoralis, Verbesina occidentalis, V. oreophila.
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 11 mm.; face slightly longer than broad, with large and conspicuous yellow maculae between clypeus and lower margin of eye, extending up to level of antennae; clypeus rather flat, somewhat longer than broad, projecting about one-half below suborbital line, smooth and shining, mostly black, but often with narrow infusions of yellowish at extreme sides and along upper margin, rather deeply and coarsely punctate, the punctures rather sparse medially, becoming more fine and close at extreme sides; facial foveae short, not extending below level of antennae, rather broad above, occupying most of area between eyes and ocelli, covered with ochraceous tomentum; space between margin of vertex and lateral ocelli broad, about equal to distance between them; cheeks broader than eyes, rounded posteriorly, somewhat shining, punctures very minute and close; malar space evident but very short; basal segment of flagellum elongate, considerably longer than 2nd and 3rd combined; process of labrum short and rather broad, width fully three times the median length, rather broadly truncate and very slightly emarginate apically; pubescence of head, thorax and basal leg segments entirely ochraceous, that on tarsi becoming somewhat fuscous; thoracic integument rather dull, punctures of scutum very fine, close and uniform, but quite deep and distinct, those on scutellum somewhat more coarse and deep and more widely separated, the surface somewhat shining; pleura with fine, shallow and rather close punctures; dorsal area of propodeum oblique, quite short, triangle obscurely roughened along basal margin; propodeal corbicula well developed, with a thin anterior fringe, ochraceous; trochanteral floccus quite long and dense, pale ochraceous; hind tibiae broadened apically, apex nearly twice width of basitarsi, scopa dense, hairs of moderate length, plumose, pale ochraceous; front basitarsi slender, mid basitarsi nearly as broad as their tibiae; 2nd submarginal cell much shorter than 3rd, receiving 1st recurrent slightly beyond middle; abdominal terga shining, deeply, closely and quite coarsely punctate, apical depressed areas occupying about one-third median length of discs, yellowish-hyaline, discal pubescence short, thin, inconspicuous, entirely pale, terga 2-4 with pale ochraceous, apical fasciae, that on tergum 2 somewhat interrupted medially, tergum 5 with a pale brownish, apical fimbria.
MALE — Length 9 mm.; face longer than broad, with large yellow maculae between clypeus and lower margins of eyes, extending up to level of antennae; clypeus slightly convex. mostly yellow, with a pair of dark spots and the apical rim blackish, smooth and shining, punctures fine, well separated, becoming very close at extreme sides; space between margin of vertex and lateral ocelli very broad, subequal to distance between ocelli; cheeks broader than eyes, rounded posteriorly, shining, punctures exceedingly minute, rather close; malar space evident but very short; basal segment of flagellum elongate, subequal to 2nd and 3rd combined; process of labrum quite broad basally, abruptly constricted to form a narrow tip which is slightly emarginate; mandibles rather short, with a distinct, inner, subapical tooth, overlapping somewhat less than one-third; pubescence of head, thorax and legs entirely pale ochraceous; thoracic integument rather dull laterally, dorsum of thorax somewhat shining, punctures of scutum deep and distinct, quite close, those on scutellum scattered irregularly and rather sparse; pleura quite closely, finely and deeply punctate; dorsal area of propodeum oblique, narrow, triangle obscurely roughened along basal margin; basitarsi pale testaceous, slender and elongate, considerably narrower than their respective tibiae; 2nd submarginal cell considerably shorter than 3rd, receiving 1st recurrent near middle; abdominal terga smooth, shining, deeply, closely and rather coarsely punctate, at least on basal segments, punctures becoming finer and more widely separated on more apical segments, apical impressed areas occupying about one-third median length of discs, hyaline, discal pubescence short, thin, erect, entirely pale, terga 2-4 subfasciate apically toward sides of terga; apical portion of sternum 8 rather short and robust, sides parallel to the somewhat broadened apex which is rather broadly and deeply emarginate apically; penis valves slender, very slightly dilated basally, gonocoxites rather robust, slightly dilated toward tip, the gonocoxal lobes quite strongly produced, subacute.
DISTRIBUTION — Illinois and Indiana, west to Utah and northern Mexico, south to North Carolina and Georgia; September and October.
FLOWER RECORDS — Collected on Helianthus angustifolius in North Carolina. Recorded by Robertson (1929, as Pterandrena pulchella) on six other species of Helianthus, and on Aster, Bidens, Coreopsis and Silphium.
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References |
Andrena pulchella Robertson, 1891, Transactions of the American Entomological Society, vol. 18, p. 57 (preoccupied); Cockerell, 1896, Annals of the Magazine of Natural History, ser. 6, vol. 18, p. 88; Viereck, 1916, Connecticut State Geological and Natural History Survey, Bulletin 22, p. 717; Cockerell, 1931, American Museum Novitates No. 458, p. 7.
Pterandrena pulchella: Robertson, 1902, Transactions of the American Entomological Society, vol. 28, pp. 193, 194 (new genus); 1914, Entomological News, vol. 25, p. 70; 1925, Ecology, vol. 6, p. 426; 1926, Ecology, vol. 7, p. 379; 1929, Flowers and Insects, p. 9; Pearson, 1933, Ecology Monographs, vol. 3, p. 383.
Andrena (Pterandrena) accepta Viereck, 1916, Proceedings of the Biological Society of Washington, vol. 29, p. 127 (new name for A. pulchella Robertson); Leonard, 1928, Cornell University Agricultural Experiment Station Memoirs 101, p. 1022; Cockerell, 1931, American Museum Novitates No. 458, p. 7; Lanham, 1949, University of California Publications in Entomology, vol. 8, p. 200; Bohart, Knowlton, and Bailey, 1950, Utah State College, Mimeograph Series No. 371, p. 3; Mitchell, 1960, North Carolina Agricultural Experiment Station Technical Bulletin of the No. 141, pp. 137-138; LaBerge, 1964, Bulletin of the University of Nebraska State Museum, vol. 4, pp. 294-295.
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