Bombus impatiens Cresson, 1863
  Apoidea   Apidae   Bombus
Subgenus: Pyrobombus

Bombus impatiens, Common Eastern Bumble Bee
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Bombus impatiens, Common Eastern Bumble Bee

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Bombus impatiens
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Bombus impatiens

Bombus impatiens
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Bombus impatiens

Bombus impatiens f
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Bombus impatiens f

Bombus impatiens w
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Bombus impatiens w

Bombus impatiens w
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Bombus impatiens w

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IDnature guides
Reprinted with permission from: Mitchell, T.B. 1962 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 152.

QUEEN—Length 17-21 mm., breadth of abdomen 8.5-11 mm.; black, including legs and tegulae, spurs reddish-piceous; wings lightly infuscated, veins brownish to piceous; pubescence bright yellow, copious but rather short pronotum, scutum, scutellum, mesopleura large part, and basal abdominal tergum, a few black hairs on scutum medially and some yellowish pubescence on propodeum laterally, becoming black below; a small- amount of yellowish pubescence intermixed with black vertex ‘and occiput medially, otherwise entirely black an head, venter of thorax, legs and abdominal terga 2-6; corbicular fringe quite dense and elongate, entirely black; clypeus quite closely and finely punctate laterally and above, the broad median area shining, minutely and obscurely punctate; labrum rather broadly truncate, with a basal elevation on each side, shallowly excavated or concave between, apical margin of this area rather broadly rounded, somewhat elevated above the margin on each side; apex of mandible with pair of short but quite distinct teeth on the upper angle, otherwise broadly rounded, outer face shining, only very minutely and obscurely punctate; malar space smooth and shining, practically impunctate, considerably shorter than basal width of mandible, about one-fifth length of eye; punctures of medial area of face very fine and close, becoming somewhat more sparse and distinct toward ocelli, space between lateral ocelli and eyes shining and impunctate, vertex very finely and densely punctate medially beneath dense pubescence, becoming somewhat more distinctly but still closely punctate laterally; lateral ocelli slightly nearer eyes than to each other, and somewhat nearer each other than to margin of vertex; antennal scape slightly more than half the total length of flagellum; basal segment of. flagellum very slightly longer than segment 3, and 3 slightly longer than 2; posterior margin of hind basitarsi slightly and regularly curved; apex of tergum 6 very narrowly rounded, the surface smooth, shining and only very minutely and quite sparsely punctate.

WORKER—Length 8.5-16 mm., breadth of abdomen 4-7 mm.; very similar to queen in color, pubescence and structure, usually with fewer yellowish hairs on vertex, pubescence somewhat more elongate and copious, wings somewhat paler.

MALE—Length 12-17 mm., breadth of abdomen 5-6.5 mm.; black, including legs, the spurs somewhat more piceous and tegulae brownish-piceous; wings subhyaline, veins testaceous to piceous; apical margins of the terga very narrowly testaceous-hyaline; pubescence long and copious, yellowish on vertex, occiput, cheeks posteriorly and below, and on median area of face and clypeus, with erect black hairs on cheeks above, vertex laterally, face between ocelli and antennae, and with intermixed, long, black hairs on face below antennae; pronotum, scutum, scutellum and pleura in large part yellow pubescent, a few intermixed blackish hairs on median posterior area of scutum, and propodeum largely yellow; legs with yellowish’ pubescence at base but becoming black on femora apically and on tibiae and basitarsi; basal abdominal tergum yellow pubescent, following terga entirely black pubescent; clypeus shining, finely and quite -closely but regularly punctate beneath dense pubescence; labrum quite smooth, shining, truncate apically, lateral margin rounded, very minutely and rather sparsely punctate; mandibles slender, bidentate apically, outer surface densely yellow pubescent, completely hiding the surface, fringed below with long, curled, yellowish hairs; malar space smooth and shining, not distinctly punctate, length about equal to basal width of mandible; median area of face very finely and closely punctate, the punctures becoming somewhat more coarse and distinct but still close toward ocelli, area between lateral ocelli and eyes polished ‘and impunctate, vertex finely and densely punctate medially beneath dense pubescence, punctures becoming somewhat more distinct but still close laterally; lateral ocelli somewhat nearer eyes than to each other, and slightly nearer each other than to margin of vertex; segments 1 and 2 of flagellum about equal in length, segment 3 somewhat longer; hind tibiae quite slender, outer surface shining and very sparsely punctate, especially apically, only slightly convex, the fringe of rather elongate, black hairs; hind basitarsi quite slender and elongate, about three times longer than the maximum width; sterna 7 and 8 and genital armature as shown (fig. 133).

DISTRIBUTION — Ontario to Maine, south to Florida, March to November, January and February in Florida.

FLOWER RECORDS —Abelia, Apocynum, Bidens, Cirsium, Erigeron, Eu patorium, Gels emium, hex, Malus, Polygonum, Pontederia, Solidago, Trilisa and Vaccinium. Robertson (1929) lists the following genera: Actinomeris, Aesculus, Agastache, Amphicarpa, Arabis, Arctiurn, Aselepias, Aster, Blephilia, Boltonia, Brauneria, Camassia, Cam panula, Cassia, Caulophyllurn, Cephalanthus, Cercis, Cicuta, Claytonia, Clematis, Collinsia, Coreopsis, Crataegus, Cucurbita, Delphinium, Dentaria, Desmodiurn, Dianthera, Dicentra, Diosypros, Dodecatheon, Eryngiurn, Erythronium, Frageria, Gaura, Geranium, Gerardia, Gymnocladus, Helenium, Helianthus, Heliopsis, Hydrophyllum, Impatiens, Lactuca, Liatris, Linaria, Lit hospermum, Lobelia, Lonicera, Lyco pus, Lythrum, MalVa, Monarda, Nelumbo, Nepeta, Osmorrhiza, Pastinaca, Pent stemon, Petalosternum, Phlox, Podophyllum, Polemoniurn, Prenanthes, Prunella, Prunus, Psoralea, Pycnanthernurn, Pyrus, Ribes, Robinia, Rosa, Rubus, Rudbeckia, Salix, Scrophulana, Scutellania, Seymenia, Sicyos, Silphium, Siurn, Smilax, Solanum, Stachys, Staph ylea, Symphoricarpos, Taraxacum, Teucriurn, Trades cantia, Tnifolium, Uvalaria, Verbena, Viola, Vitis, and Zizia.

Scientific source:

Supported by
Hosts · map
FamilyScientific name @ source (records)
Amaryllidaceae  Allium @ AMNH_BEE (1)
Anacardiaceae  Rhus glabra @ UCMS_ENT (3)
Apiaceae  Daucus carota @ PN- (3); MLSB__N16- (1); UCMS_ENT (1)

Heracleum maximum @ AMNH_BEE (1)
Apocynaceae  Asclepias tuberosa @ AMNH_BEE (1)

Asclepias @ AMNH_BEE (1)
Aquifoliaceae  Ilex verticillata @ AMNH_BEE (1)
Asteraceae  Anaphalis margaritacea @ AMNH_BEE (1)

Aster sp @ UCMS_ENT (9)

Aster @ AMNH_BEE (11)

Baccharis halimifolia @ UCMS_ENT (2)

Centaurea stoebe @ UCMS_ENT (1)

Centaurea @ AMNH_BEE (4)

Cichorium intybus @ PN- (7); MLSB__N16- (2)

Cirsium sp @ UCMS_ENT (4)

Cirsium spp @ PN- (2)

Cirsium vulgare @ UCMS_ENT (5)

Cirsium @ I_JSA (1)

Dahlia sp @ BBSL (1)

Erechtites hieracifolia @ UCMS_ENT (2)

Eupatorium maculatum @ AMNH_BEE (2)

Eupatorium perfoliatum @ AMNH_BEE (1)

Heterotheca subaxillaris @ AMNH_BEE (1)

Liatris squarrulosa @ BBSL__LSAM (1)

Pityopsis falcata @ UCMS_ENT (2)

Pluchea odorata @ UCMS_ENT (16)

Solidago altissima @ I_DJV (3)

Solidago rugosa @ UCMS_ENT (2)

Solidago sempervirens @ UCMS_ENT (3)

Solidago sp @ UCMS_ENT (5)

Solidago tenuifolia @ UCMS_ENT (44)

Solidago @ AMNH_BEE (24)

Sonchus arvensis @ UCMS_ENT (4)

Symphyotrichum spp @ MLSB__N16- (1)

Tanacetum vulgare @ UCMS_ENT (3)

Taraxacum officinale @ I_JSA (2)
Balsaminaceae  Impatiens @ I_JSA (2)
Berberidaceae  Berberis thunbergii @ AMNH_BEE (1)

Berberis vulgaris @ AMNH_BEE (1)
Brassicaceae  Raphanus raphanistrum @ UCMS_ENT (1)
Clethraceae  Clethra alnifolia @ AMNH_BEE (9); UCMS_ENT (29)

Clethra @ AMNH_BEE (2)
Convolvulaceae  Convolvulus arvensis @ PN- (4); UCMS_ENT (1)
Cornaceae  Cornus @ AMNH_BEE (1)
Crassulaceae  Sedum @ AMNH_BEE (2)
Cucurbitaceae  Citrullus lanatus @ I_HHGA (1)

Citrullus sp @ BBSL (2)

Cucurbita maxima @ UCMS_ENT (9)

Cucurbita pepo @ BBSL (17); UCMS_ENT (4)
Ericaceae  Andromeda @ AMNH_BEE (1)

Erica @ AMNH_BEE (1)

Kalmia latifolia @ AMNH_BEE (1)

Kalmia sp @ BBSL (1)

Kalmia @ AMNH_BEE (1)

Rhododendron @ AMNH_BEE (2)

Vaccinium macrocarpon @ RUAC_ENT (5)

Vaccinium oxycoccus @ AMNH_BEE (2)

Vaccinium @ AMNH_BEE (6); CUIC_ENT (1)
Fabaceae  Baptisia @ AMNH_BEE (4)

Dalea pinnata @ AMNH_BEE (1)

Lathyrus japonicus @ UCMS_ENT (5)

Lespedeza bicolor @ BBSL__LSAM (1)

Lespedeza cuneata @ BBSL (1)

Melilotus albus @ PN- (1)

Securigera varia @ PN- (1)

Trifolium pratense @ PN- (44); MLSB__N16- (8); AMNH_BEE (2); UCMS_ENT (1)

Trifolium repens @ PN- (2); BBSL__BBSLID (1); AMNH_BEE (5); UCMS_ENT (1)

Trifolium @ AMNH_BEE (1); UCMS_ENT (1)

Vicia sativa @ AMNH_BEE (1)

Vicia @ AMNH_BEE (3)
Lamiaceae  Blephilia ciliata @ PN- (2)

Glechoma hederacea @ AMNH_BEE (1)

Ocimum basilicum @ UCMS_ENT (1)

Origanum @ AMNH_BEE (2)

Pycnanthemum tenuifolium @ AMNH_BEE (2)

Pycnanthemum @ AMNH_BEE (2)
Liliaceae  Hosta @ I_HHGA (1)
Malvaceae  Alcea @ AMNH_BEE (1)

Althaea officinalis @ UCMS_ENT (1)

Hibiscus moscheutos @ PN- (1)

Hibiscus syriacus @ UCMS_ENT (1)
Orchidaceae  Spiranthes @ AMNH_BEE (1)
Plantaginaceae  Plantago lanceolata @ PN- (1); MLSB__N16- (3)

Plantago @ AMNH_BEE (1)
Plumbaginaceae  Limonium carolinianum @ UCMS_ENT (24)
Poaceae  Paspalum notatum @ AMNH_BEE (1)

Zizania @ AMNH_BEE (1)
Polycitoridae  Salix sp @ BBSL (1)
Polygonaceae  Polygonum cuspidatum @ UCMS_ENT (4)

Polygonum sp @ AMNH_BEE (1); UCMS_ENT (2)

Polygonum virginianum @ PN- (1)

Polygonum @ AMNH_BEE (3)
Pontederiaceae  Pontederia cordata @ CUIC_ENT (3)
Ranunculaceae  Clematis virginiana @ UCMS_ENT (1)

Ranunculus acris @ UCMS_ENT (1)
Rosaceae  Malus @ AMNH_BEE (1)

Prunus maritima @ AMNH_BEE (1)

Rosa rugosa @ UCMS_ENT (19)

Rubus odoratus @ AMNH_BEE (1)

Spiraea tomentosa @ AMNH_BEE (2)

Spiraea @ I_HHGA (1)
Salicaceae  Salix @ AMNH_BEE (1)
Sapindaceae  Acer spicatum @ UCMS_ENT (2)
Scrophulariaceae  Buddleia @ AMNH_BEE (1)
Solanaceae  Solanum carolinense @ PN- (1); MLSB__N16- (3); UCMS_ENT (1)

Solanum @ AMNH_BEE (1)
Verbenaceae  Verbena hastata @ UCMS_ENT (5)
_  Bee @ LAR (6)

M Spring @ PN- (60)

Withheld @ BBSL (3)

apple @ NLA (46)

blueberry @ NLA (12)

caneberry @ NLA (36)

cucurbit @ NLA (416)

peach @ NLA (1)

pond edge @ NLA (1)

Updated: 2017-04-23 20:27:04 gmt
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