Bombus fernaldae (Franklin, 1911)
  Apoidea   Apidae   Bombus
Subgenus: Psithyrus

Bombus fernaldae FEM f
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Bombus fernaldae FEM f

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Bombus fernaldae MALE f
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Bombus fernaldae MALE f

Bombus fernaldae, m, back, Centre Co., PA
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Bombus fernaldae, m, back, Centre Co., PA

Bombus fernaldae, m, face, Centre Co., PA
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Bombus fernaldae, m, face, Centre Co., PA

Bombus fernaldae, m, left side, Centre Co., PA
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Bombus fernaldae, m, left side, Centre Co., PA

Bombus fernaldae, Barcode of Life Data Systems
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Bombus fernaldae, Barcode of Life Data Systems

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male front

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male front top

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male top

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male side

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male rear

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male rear tip

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female front

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female front top

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female top

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female side

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female rear

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female rear tip
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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.

FEMALE—Length 14.5-17 mm., breadth of abdomen 7-8.5 mm.; black, tibial spurs reddish-piceous; wings rather uniformly, lightly infuscated, veins brownish to piceous; pubescence of face and cheeks black, vertex with copious and elongate, yellow pubescence, with a few intermixed yellowish hairs just above antennae; thorax with long and copious, largely yellowish pubescence, but scutum with a median posterior patch of fuscous pubescence; pleura beneath and legs largely dark pubescent, but posterior fringe of front femora pale in part; pubescence of abdominal terga erect and copious, intermixed yellowish and fuscous on basal tergum, largely fuscous on terga 2 and 3, with some yellowish hairs along apical margin, and laterally also on 3, tergum 4 yellow pubescent, 5 black pubescent, 6 with only very short and inspicuous, appressed pubescence; clypeus shining, punctures fine, rather deep and distinct along lateral and upper margins, becoming very minute and sparse apically; labrum slightly excavated medially, the basal margin slightly produced on each side, apical margin rounded, rather strongly depressed; apex of mandible entire, outer face smooth and shining, punctures exceedingly minute and indefinite; malar space smooth and shining, length fully equal to basal width of mandible, about one-fourth length of eye; lateral ocelli subequally distant from eyes and each other, somewhat more widely removed from margin of vertex; punctures of face and of vertex medially fine and close, vertex becoming more shining and more minutely and sparsely punctate laterally, a shining area adjacent to each lateral ocellus nearly impunctate; flagellum fully twice the length of the scape, its basal segment very slightly longer than segment 3, and 3 slightly longer than 2; scutum with a median, shining, impunctate space, punctures otherwise rather fine and close over most of thorax; sternum 6 elongate, produced beyond apex of the tergum, its tip somewhat down-curved, lateral margins very slightly elevated medially, the narrower apex densely, pale, short pubescent.

MALE—Length 13-15 mm., breadth of abdomen 6-7 mm; black, tarsal segments becoming brownish-testaceous apically, mid and hind spurs brownish-piceous; wings lightly but quite uniformly infuscated, veins testaceous to piceous; pubescence of face and cheeks• entirely black, quite long and copious, vertex with elongate, copious, yellowish pubescence; thorax with long, copious, largely yellow pubescence but posterior half of scutum with copious, erect, black pubescence, that on venter fuscous in part; legs with intermixed light and dark hairs, the posterior fringes of femora and basitarsi largely pale; abdominal terga 1 and 4 with elongate, yellowish pubescence, 2 3, 5, and 6 with largely black pubescence, that on 7, and on 6 laterally, yellowish; clypeus very finely and closely punctate, rather dull; labrum shining, punctures minute and to some degree separated, apical margin only slightly depressed, broadly subtruncate, with a transverse, median line of erect black hairs separating the lower and upper surfaces; mandibles small but quite distinctly bidentate at apex, with a rather prominant fringe of elongate pale hairs below; malar space smooth and shining, with only exceedingly minute, well separated punctures, length equal to basal width of mandible; eye about four and one-half times longer; lateral ocelli slightly nearer eyes than to margin of vertex, subequally distant from eyes and each other; segments 1 and 3 of flagellum about equal in length, somewhat longer than segment 2 which is about as broad as long; sterna 7 and 8 and genital armature as shown (fig. 134).

DISTRIBUTION — Widespread in Canada and the United States, from Alaska to California in the West, New Brunswick to North Carolina in the East, June to September.

FLOWER RECORDS—Potentilla, Rubus and Trifolium.

HOST—Plath (1934) suggests the possibility that Bombus perplexus is the host of fernaldae, but positive evidence is lacking.

Female - The last sternite elongated beyond tip of tergum, this slender projection down-curved

Fernald cuckoo bumble bee

Status: Uncommon

Select food plant genera: Aster, Senecio, Potentilla, Trifolium, Chamaebatia, Cirsium

Tongue Length: Short

Hosts: B. rufocinctus

Distribution: Pacific coast east to New England

Can be confused with B. insularis

Face black, top of head yellow or cream, T1 often black, yellow in the east, T2 black, T3 black or yellow, T4 yellow or cream, T5 black.

Hind tibia with outer surface convex and densely hairy. Hair of the face black. T6 curled very strongly under the abdomen and pointing anteriorly, S6 ending distally with a shiny triangular spine, the lateral keels small. Hair long and uneven.

Extracted from: Laverty T.M., & Harder L.D., (1988). The Bumble Bees of Eastern Canada. Can. Ent. 120: 965-987.

Description. Body size of female small, male small to medium. Head round, malar space shorter than broad in female, about square in male. Tongue short. In females, tip of the abdomen sharply recurved. Colour as in Figure 26. In some females T3 partially or com- pletely white or yellow. In some males, interalar band indistinct around wing bases; T7 yellow in few specimens.

Scientific source:

Supported by
Hosts · map
FamilyScientific name @ source (records)
Apiaceae  Heracleum sp @ BBSL (1)
Apocynaceae  Asclepias syriaca @ UCMS_ENT (1)
Asteraceae  Achillea sp @ BBSL (1)

Aster sp @ BBSL (19)

Aster @ AMNH_BEE (2)

Centaurea sp @ BBSL (1)

Cirsium sp @ BBSL (3)

Erigeron sp @ BBSL__JPS (1)

Heliomeris multiflora @ RMBL_ENT (8)

Heliomeris villosa @ RMBL_ENT (4)

Hymenoxys hoopesii @ RMBL_ENT (2)

Rudbeckia occidentalis @ BBSL (1)

Senecio sp @ BBSL (2)

Senecio triangularis @ RMBL_ENT (1)

Senecio @ RMBL_ENT (1)
Boraginaceae  Cynoglossum officinale @ BBSL (1)
Brassicaceae  Smelowskia calycina @ BBSL (3)
Fabaceae  Trifolium repens @ BBSL (2)

Trifolium sp @ BBSL (3)
Grossulariaceae  Ribes @ AMNH_BEE (1)
Liliaceae  Calochortus subalpinus @ BBSL (1)
Onagraceae  Chamerion angustifolium @ RMBL_ENT (1)

Epilobium parviflorum @ BBSL (3)
Ranunculaceae  Delphinium sp @ BBSL (1)
Rosaceae  Potentilla sp @ BBSL (4)

Rubus allegheniensis @ BBSL (1)
Scrophulariaceae  Pedicularis groenlandica @ BBSL (2)

Penstemon sp @ BBSL (2)
_  Asteraceae sp @ BBSL (1)

Withheld @ BBSL__YOSE (6); BBSL (19)

Updated: 2021-06-15 23:38:22 gmt
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