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Hoplitis albifrons (Kirby, 1837)
Chelostoma albifrons Kirby, 1837; Monumetha borealis Cresson, 1864; Monumetha obsoleta Cresson, 1864; Megachile oblonga Provancher, 1882; Monumetha argentifrons Cresson, 1864; Osmia maura Cresson, 1878; Andronicus hesperius Cockerell, 1903; Hoplitis (Monumetha) albifrons albifrons (Kirby, 1837); Hoplitis (Monumetha) albifrons argentifrons (Cresson, 1864); Hoplitis (Monumetha) albifrons maura (Cresson, 1878); Hoplitis (Alcidamea) albifrons argentifrons (Cresson, 1864), valid subspecies; Hoplitis (Alcidamea) albifrons maura (Cresson, 1878), valid subspecies

Life   Insecta   Hymenoptera   Apoidea   Megachilidae   Hoplitis
Subgenus: Alcidamea

Hoplitis albifrons FEM mm x f
© Copyright Laurence Packer 2014 · 7
Hoplitis albifrons FEM mm x f

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Hoplitis albifrons MALE mm - f
© Copyright Laurence Packer 2014 · 7
Hoplitis albifrons MALE mm - f
Hoplitis albifrons, f, back, Mariposa CA, ---.
© Copyright source/photographer · 5
Hoplitis albifrons, f, back, Mariposa CA, ---.

Hoplitis albifrons, f, face, Mariposa CA, ---.
© Copyright source/photographer · 5
Hoplitis albifrons, f, face, Mariposa CA, ---.
Hoplitis albifrons, f, right, Mariposa CA, ---.
© Copyright source/photographer · 5
Hoplitis albifrons, f, right, Mariposa CA, ---.

Hoplitis albifrons maura
© Copyright John Ascher, 2006-2014 · 1
Hoplitis albifrons maura
Hoplitis albifrons maura
© Copyright John Ascher, 2006-2014 · 1
Hoplitis albifrons maura

Hoplitis albifrons
Hartmut Wisch · 1
Hoplitis albifrons
Hoplitis albifrons
Hartmut Wisch · 1
Hoplitis albifrons

Hoplitis albifrons, Barcode of Life Data Systems
Barcode of Life Data Systems · 1
Hoplitis albifrons, Barcode of Life Data Systems
Hoplitis albifrons, male, antenna
© NC Agriculture State Experiment Station Technical Bulletin Number 152, T. B. Mitchell, 1962 · 1
Hoplitis albifrons, male, antenna
Overview
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 11-13 mm.; entirely black; face much longer than distance between eyes; eyes subparallel; lateral ocelli nearer each other than to eyes, and much nearer eyes than to margin of vertex; clypeus broadly convex, apical margin quite strongly outcurved, but median third or fourth narrowly produced and very slightly incurved, the margin of this area polished and impunctate; mandibles broad apically, 4-dentate; width of cheeks about twice that of eyes; wings subhyaline basally, becoming lightly infuscated apically, veins and stigma piceous; tegulae brownish-piceous, smooth and shining; legs entirely black, front spurs hyaline in part, mid and hind spurs black; pubescence rather thin but somewhat elongate, rather copious and pale around antennae, becoming somewhat blackish on vertex and clypeus, cheeks below, on pleura and over most of legs; pubescence largely pale on scutum, scutellum and posterior face of propodeum; abdominal tergum 1 largely pale pubescent, 2 pale pubescent in part, 3-6 largely black pubescent, 1 and 2 subfasciate apically toward sides; scopa entirely blackish; punctures fine and rather close over most of head and thorax, becoming somewhat more widely separated on vertex medially and on scutum posteriorly; abdominal terga shining, punctures minute and widely separated medially, interspaces being many times diameter of punctures, these becoming much closer toward the extreme lateral margins, tergum 5 more closely punctate, 6 with fine, crowded punctures, with a narrow, rounded, apical lip; sternum 6 triangularly pointed medially.

MALE—Length 9 mm.; entirely black; face nearly twice as long as distance between eyes; eyes subparallel; lateral ocelli slightly nearer eyes than to each other, slightly nearer each other than to margin of vertex; median segments of flagellum about as broad as long, apical segment more elongate, tapering apically (fig. 23); clypeus only slightly convex, broadly produced apically, nearly as long as the greatest breadth, apical margin nearly straight; mandibles bi-dentate; cheeks somewhat broader than eyes; wings hyaline at extreme base, becoming lightly infuscated apically, veins and stigma piceous; tegulae piceous, smooth and shining, with scattered, minute puncture evident; legs entirely black, anterior spurs more yellowish-hyaline, mid and hind spurs piceous or black; tergum 7 much broader than long, rather broadly rounded apically, with a submedian, depressed area; sterna 1-5 exposed, smooth and shining in large part, 1 and 2 each with a median, apical, spine-like projection, with only a few scattered punctures, 6-8 retracted, form as shown(fig. 24); genital armature as shown; pubescence of head and thorax largely pale, rather thin but somewhat elongate, subappressed between antennae and eyes, clypeus with dense, appressed tomentum; legs with short, black pubescence except for the pale posterior fringe on front tarsi; abdomen not fasciate, discal pubescence of the terga extremely short, thin and inconspicuous, tergum 6 sometimes obscurely fasciate apically.
DISTRIBUTION—British Columbia to Maine and Nova Scotia, north to Hudson Bay and Alaska, May to August.

FLOWER RECORD — Phacelia. There are two additional forms of albifrons occurring in the West, argentifrons (Cresson) and maura (Cresson)


Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Apocynaceae  Apocynum sp @ BBSL (1)
Asclepiadaceae  Asclepias eriocarpa @ BBSL__BERK (1)
Asteraceae  Arnica fulgens @ BBSL (1)

Chaenactis sp @ BBSL (2)

Cirsium callilepis @ BBSL__KWC (1)

Cirsium sp @ BBSL (6); BBSL__PUB (1); BBSL__KWC (2)

Cirsium undulatum @ BBSL (1)

Erigeron speciosus @ BBSL (3)

Eriophyllum lanatum @ BBSL__BERK (1)

Eriophyllum sp @ BBSL__KWC (1)

Grindelia sp @ BBSL (1)

Heterotheca villosa @ DART_ENT (1)

Hulsea sp @ BBSL__KWC (1)

Senecio triangularis @ BBSL (3)

Silybum marianum @ BBSL (3)

Taraxacum officinale @ BBSL (1)

Taraxacum sp @ BBSL__BBSLID (1)
Boraginaceae  Cryptantha sp @ BBSL__KWC (3)

Cynoglossum officinale @ BBSL (1)

Echium vulgare @ CUIC_ENT (1)

Eriodictyon @ AMNH_BEE (1)
Brassicaceae  Stanleya sp @ BBSL (1)

Thelypodium laciniatum @ BBSL (1)
Cactaceae  Opuntia sp @ BBSL (1)
Capparaceae  Cleome serrulata @ BBSL (2)

Cleome sp @ BBSL (1)
Convolvulaceae  Calystegia macrostegia @ I_JSA (2)

Calystegia sp @ BBSL (3)
Crassulaceae  Sedum lanceolatum @ BBSL (1)
Epialtidae  Mimulus sp @ BBSL__BERK (1)
Ericaceae  Arctostaphylos nevadensis @ BBSL__PUB (1)
Fabaceae  Astragalus sp @ BBSL (2)

Hedysarum alpinum @ BBSL (3)

Hedysarum boreale @ BBSL (6)

Lotus scoparius @ BBSL (1)

Lotus sp @ BBSL__KWC (3)

Lupinus sp @ BBSL (2); BBSL__KWC (1)

Medicago sp @ BBSL (1)

Melilotus officinalis @ BBSL (1)

Melilotus sp @ BBSL (2)

Trifolium hybridum @ RMBL_ENT (1)

Trifolium pratense @ BBSL (2)

Trifolium repens @ BBSL (3)

Vicia sp @ BBSL (1)
Gentianaceae  Frasera speciosa @ BBSL (2)

Frasera @ CUIC_ENT (1)
Hydrophyllaceae  Eriodictyon sp @ BBSL__KWC (2)

Nama rothrockii @ BBSL__KWC (1)

Phacelia distans @ BBSL__BERK (1)

Phacelia hastata @ BBSL (1)

Phacelia heterophylla @ BBSL__KWC (11)

Phacelia imbricata @ BBSL__KWC (3)

Phacelia leptosepala @ BBSL (7)

Phacelia sp @ BBSL__BBSLID (1); BBSL__PUB (1); BBSL__KWC (15); BBSL (15)
Lamiaceae  Agastache urticifolia @ RMBL_ENT (1)

Marrubium vulgare @ BBSL (1)
Liliaceae  Allium sp @ BBSL (1)
Linyphiidae  Collinsia sp @ BBSL__KWC (1)
Malvaceae  Sidalcea oregana @ BBSL (1)
Onagraceae  Chamerion augustifolium @ DART_ENT (1)

Clarkia cylindrica @ BBSL__BERK (1)

Clarkia dudleyana @ BBSL__KWC (1)

Clarkia gracilis @ BBSL__BERK (1)

Clarkia sp @ BBSL (5); BBSL__KWC (4); BBSL__BERK (1)

Clarkia speciosa @ BBSL__BERK (1)

Clarkia unguiculata @ BBSL (4); BBSL__BERK (3)

Clarkia xantiana @ CUIC_ENT (23)

Clarkia @ AMNH_BEE (1)

Epilobium sp @ BBSL (1)
Papaveraceae  Eschscholzia californica @ BBSL (1)
Polygonaceae  Eriogonum sp @ BBSL__LAKU (4); BBSL__PUB (1)
Rosaceae  Cercocarpus montanus @ BBSL (2)

Horkelia sp @ BBSL__KWC (1)

Potentilla gracilis @ BBSL (2)

Potentilla sp @ BBSL__KWC (2)

Prunus virginiana @ BBSL (3)

Rosa nutkana @ BBSL (5)
Scrophulariaceae  Collinsia heterophylla @ BBSL__KWC (2)

Penstemon confertus @ BBSL (2)

Penstemon cyananthus @ BBSL (4)

Penstemon harringtonii @ BBSL (1)

Penstemon kingii @ BBSL (1)

Penstemon patricus @ BBSL (1)

Penstemon sp @ BBSL (9)
_  Withheld @ BBSL (697); BBSL__PINN (83); BBSL__ZION (43); BBSL__YOSE (183)

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Updated: 2017-11-21 11:24:36 gmt
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