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Sphecodes davisii Robertson, 1897
Sphecodes persimilis Lovell and Cockerell, 1907

Life   Insecta   Hymenoptera   Apoidea   Halictidae   Sphecodes
Subgenus: None

Sphecodes davisii MALE mm x f
© Copyright Laurence Packer 2014 · 7
Sphecodes davisii MALE mm x f

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    Identification Notes: Female: Large, often common, closest in size to S. ranunculi and S. dichrous, but has a rounded rather than very sharp pronotal ridge running from the ponotal collar towards the head and has very prominent, large, reddish tinged setae lining the upper edge of the hind tibia, pits almost all touching on scutum, and pits on T2 nearly absent with only scattered pits very, very widely separated
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Sphecodes davisii Male
© Copyright Laurence Packer 2014 · 7
Sphecodes davisii Male
Sphecodes davisii, f, back, NY, essex county
© Copyright source/photographer · 5
Sphecodes davisii, f, back, NY, essex county

Sphecodes davisii, f, face, NY, essex county
© Copyright source/photographer · 5
Sphecodes davisii, f, face, NY, essex county
Sphecodes davisii, f, side, NY, essex county
© Copyright source/photographer · 5
Sphecodes davisii, f, side, NY, essex county

Sphecodes davisii, Ilona Loser
Ilona Loser · 1
Sphecodes davisii, Ilona Loser
Sphecodes davisii, Ilona Loserface
Ilona Loser · 1
Sphecodes davisii, Ilona Loserface

Sphecodes davisii, Ilona Loserfemale
Ilona Loser · 1
Sphecodes davisii, Ilona Loserfemale
Identification
Extracted from: Robertson, C. (1897). North American Bees - Description and Synonyms. Transactions of the Academy of Science od St. Louis. Vol. 7. No. 14.

Black, opaque, the base of abdomen shining; head, thorax and legs with rather long, whitish pubescence, more close on clypens, cheeks and thorax beneath; mandibles, except base, rufous; antennae dull ferruginous beneath, short, joints increasing in length from second to fourth; fourth and following joints subequal; lllesonotllm rather closely and strongly punctured, with median and lateral raised lines; metathorax strongly reticulated, with a semicircular inclosllre ; teglllae testaceous exteriorly; wings hyaline, nervurcs testaceous, stigma black; legs black, apical joints of tarsi ferruginous; abdomen almost impullctate at base, towards apex closely and .finely punctu red, fiL'st and fourth segments at apex and the second and third entirely ferruginous. Length 10 mm.

~lichigan; one d specimen. Dedicated to :Mr. G. C. Davis, of l\lichigan Agricultural College, from whom the specimen was received. No reliance need be placed on the definite limitation of the red color of abdomen in the description of a single specimen. This is the largest male 8pltecodes I have seen.

Extracted from: Mitchell, T. 1962. Bees of the Eastern United States, I. North Carolina Agricultural Experiment Station. 1-191.

MALE-Length 8 mm.; head and thorax black, abdomen ferruginous medially, the basal segment and apical half more or less blackened; head considerably broader than long; eyes somewhat convergent below; clypeus quite strongly convex, with a very faint median impression; mandibles black basally, becoming dark reddish at tip; antennae black, basal segment of flagellum slightly broader than long, 2nd and following segments slightly longer than broad; lateral ocelli subequally distant from eps and each other; lower half of face obscured by dense, white pubescence, clypeus rather coarsely and very closely punctate beneath the pubescence, upper part of face dull, rather coarsely and very densely punctate, punctures being very close even on vertex between eyes and ocelli, hind margin becoming rather coarsely rugose; cheeks reticulate above, becoming rugoso-striate below, ventral surface very narrowly smooth and shining; wings subhyaline, with the usual three submarginal cells, veins brownish-testaceous, stigma piceous; tegulae yellowish-hyaline; legs black, only the apical tarsal segments at all brownish; scutum and scutellum rather dull, punctures coarse, deep and very close in large part, the anterior third of scutum being rugosopunctate, and punctures very close between notaulices and tegulae, distinctly separated only near posterior margin of scutum, those on scutellum coarse, irregular and only slightly separated in center; pleura coarsely rugose, hypoepimeral area being somewhat more reticulate; dorsal area of propodeum coarsely reticulate, rather broad, with a distinct, rounded, posterior border, lateral faces irregularly striate anteriorly, becoming coarsely reticulate posteriorly, and posterior face very coarsely reticulate; abdominal terga smooth and shining, basal tergum with very fine, widely scattered, sparse punctures, tergum 2 rather closely and deeply although finely punctate across basal half, 3 somewhat more fully punctate, apical margins of all broadly impressed, entirely impunctate, concolorous in general with the basal portions of discs; gonostyli (fig. 117) slightly exceeding tips of penis valves, short, slightly dilated apically, recurwd ventrally toward the midline, with a very small apical process that bears a few fine setae, and inner margin bearing a short fringe of setae.

DISTRIBUTION-Minnesota and Ontario to New York and the New England states; July to October.


Names
Scientific source:

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Hosts · map
FamilyScientific name @ source (records)
Adoxaceae  Viburnum dentatum @ UCMS_ENT (1)

Viburnum lentago @ AMNH_BEE (1)
Anacardiaceae  Rhus copallina @ UCMS_ENT (4)
Apiaceae  Daucus carota @ UCMS_ENT (1)
Asteraceae  Achillea millefolium @ AMNH_BEE (2); UCMS_ENT (2)

Aster lateriflorus @ AMNH_BEE (1)

Aster sp @ UCMS_ENT (1)

Cichorium intybus @ UCMS_ENT (1)

Cirsium arvense @ B_AW (1)

Hypochaeris radicata @ UCMS_ENT (1)

Leucanthemum vulgare @ UCMS_ENT (7)

Solidago rugosa @ UCMS_ENT (1)

Solidago sempervirens @ UCMS_ENT (2)

Solidago tenuifolia @ UCMS_ENT (1)

Symphyotrichum ericoides @ AMNH_BEE (1)
Ranunculaceae  Ranunculus acris @ UCMS_ENT (1)
Rosaceae  Rubus allegheniensis @ AMNH_BEE (1)

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Updated: 2024-05-03 14:33:49 gmt
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