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Sphecodes ranunculi Robertson, 1897
Proteraner ranunculi (Robertson, 1897)

Life   Insecta   Hymenoptera   Apoidea   Halictidae   Sphecodes
Subgenus: None

Sphecodes ranunculi FEM CFP
© Copyright Laurence Packer 2014 · 7
Sphecodes ranunculi FEM CFP

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Sphecodes ranunculi MALE CFP
© Copyright Laurence Packer 2014 · 7
Sphecodes ranunculi MALE CFP
Sphecodes ranunculi, m on Antenn --
Michael Veit · 6
Sphecodes ranunculi, m on Antenn --

Sphecodes ranunculi, m on Antenn --
Michael Veit · 6
Sphecodes ranunculi, m on Antenn --
Sphecodes ranunculi, F, Back, NY, Vipers Boscoss Roadside
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Sphecodes ranunculi, F, Back, NY, Vipers Boscoss Roadside

Sphecodes ranunculi, F, Face, NY, Vipers Boscoss Roadside
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Sphecodes ranunculi, F, Face, NY, Vipers Boscoss Roadside
Sphecodes ranunculi, F, Side, NY, Vipers Boscoss Roadside
© Copyright source/photographer · 5
Sphecodes ranunculi, F, Side, NY, Vipers Boscoss Roadside

Sphecodes ranunculi, Barcode of Life Data Systems
Barcode of Life Data Systems · 1
Sphecodes ranunculi, Barcode of Life Data Systems
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.

Female - Head aud thorax black, abdomen entirely red; vertex and face, including clypeus, densely and evenly punctured; mandibles bidentnte, rufous towanls tips; labrum short, entire; flagellum dull ferruginous beneath; mesonotulll closely and strongly pnnctured, more sparsely on the elisc, ,,'bich is shining; scutellum shining, ,,-ith a llledian punctured line; metathornx coarsely reticulated, without defined inclosure, presenting a small trnncation; wings hyaline, increasing fuscons clouded towards tips, stigma fUSCOllS, nervures and teglllae exteriorly dlIll testaceOlls, second submargillal cell unusually narrowed to\\'!!rds marginal, about one-half; legs black, apical joints of tarsi dull ferruginous; abdomen shin- , ing, almost impunctate at base, the punctures increasing in size and Hum her towards the apex; :second segment depressed basally. Length 8 mm.

Male - Resombles the female; antennae, m~llldibles amI labrum bInckeI'; antennac long, second and thin1 joints subequal, fourth usually longer than fifth and 10llger than seconll alld thinl together; willg:3 more hyalinc, dusky at tips; metathorax presenting a semicircular inclosure "'ith rugae llsnally longitud i nal; mesonotUll1 more closely pUllct u red and ,,'ith central raised line more eyident; seyenth segment of abdomen eyitlent, broadly rounded. Length 8 mm.

This species may be distinguished from S. die/n'ous hy its smaller size, more dense punctuation of mcsonotum alHl clypeus, and second submarginnl cell more narrowing to,,-ards margiual.

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

FEMALE-Length 7 mm.; head and thorax black, abdomen bright ferruginous; head con- siderably broader th,an long; eyes very slightly convergent below; clypeus rather strongly con- vex; labrum rather short, broadly rounded, dark basally, becoming somewhat reddened apically; mandibles with an inner, subapical angle or tooth, dark reddish; antennae dark basally, flagellum more brownish-piceous beneath, basal segment very short, much broad- er than long, the 2nd fully as long as broad and twice the length of the lst, the following segments slightly longer than broad lateral ocelli slightly nearer each other than to eyes; face below ocelli rather dull, punctures deep and distinct, rather coarse and quite close but not crowded, becoming rather shallow and indistinct between antennae and eyes, supraclypeal area closely and rather finely punctate, punctures of clypeus somewhat more coarse but rather shallow and close throughout; vertex between eyes and ocelli somewhat shining, punctures fine and to some degree separated, hind margin becoming more rugoso-striate, cheeks rather distinctly and closely striate above, becoming smooth and shining on the lower surface where there are a few, widely scattered punctures; wings faintly infuscated toward apex, with the usual three submarginal cells. veins and stigma brownish-testaceous; teffulae yellowish-hyaline; legs reddish-piceous in general, apical tarsal segments somewhat paler; all femora and tibiae quite slender and elongate, and front coxae broadly convex, thinly pubescent; scutum and scutellum coarsely and deeply punctate, punctures close over most of scutum, being somewhat more widely separated only in the median, posterior portion, becoming closely crowded and subrugose along anterior margin, scutellum slightly impressed medially where the punctures are rather close, quite sparse on each side of this; pleura coarsely reticulate; dorsal area of propodeum coarsely, completely and regularly striate, lateral faces dull, obscurely substriate or reticulate, posterior face rather coarsely reticulate, xbdominal terga smooth and shining, basal tergum with a few, widely scattered, very minute punctures, those on tergum 2 quite sparse over most of disc but rather deep and distinct, somewhat closer on 3 and 4, apical margins of all terga rather broadly impressed, impunctate and conspicuously yellowish-hyaline.

MALE-Length 8 mm.; head and thorax black, abdomen bright ferruginous ; head near- ly as long as broad; eyes slightly convergent below; clypeus convex, mandibles entirely black, basal segment of flagellum very short, much broader than long, segment 2 about 4 times this length, the following segments suc- cessively slightly shortened, (fig. 114) lateral ocelli subequally distant from eyes and each other, lower portion of face obscured by dense, white tomentum, surface above antennae dull, densely and rather coarsely rugoso-punctate, becoming somewhat more distinctly but yet closely punctate on vertex between eyes and ocelli, hind margin becoming coarsely reticulate; cheeks finely reticulate along margin of eye, becoming coarsely reticulate posteriorly, lower surface smooth and somewhat shining; wings subhyaline, veins and stigma brownishtestaceous, with the usual three submarginal cells; tegulae brownish-piceous, becoming narrowly hyaline anteriorly, with a few, very fine punctures over anterior half; legs black in large part, the mid femora broadly rounded along lower margin, legs otherwise quite slender; scutum and scutellum somewhat shining between the very coarse, deep and quite close punctures, these very slightly separated over central area of scutum, becoming close between notaulices and tegulae and along anterior margin, those on scutellum close in midline but sparse on each side; pleura rather finely reticulate; dorsal area of propodeum very coarsely rugoso-striate, lateral faces dull, coarsely reticulate along posterior margin, posterior face rugoso-striate; abdominal terga shining between deep and distinct punctures, basal tergum with rather fine punctures scattered over apical half, these well separated but hardly sparse, those on krga 2-4 somewhat more coarse and deep, well separated but not sparse, apical margins of all segments rather narrowly impressed, entirely impunctate, concolorous with remainder of disc; gonostyli (fig. 117) barely exceeding penis valves, extremely short, rounded and somewhat compressed, with an inner, somewhat expanded lobe that is slightly excavated on upper surface and is directed somewhat posteriorly.

DISTRIBUTION-Minnesota to Maine, south to North Carolina; April to July.

FLOWER RECORDS-Barbarea, Ilex, Ranunculus, Rhus, Rubus, Taraxacum and Viola. Robertson (1929) records this species on the following additional plant genera: Arabis, Asclepias, Aster, Chaerophyllum, Heracleum, Osmorrhiza, Potentilla, Pycnanthemum, Taenidia, Thaspium, Viburnum and Zizia.


Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Apiaceae  Zizia @ AMNH_BEE (2)
Aquifoliaceae  Ilex opaca @ UCMS_ENT (2)
Asteraceae  Crepis tectorum @ B_AW (1)
Brassicaceae  Barbarea vulgaris @ UCMS_ENT (2)
Cornaceae  Cornus sericea @ CUIC_ENT (1)
Grossulariaceae  Ribes missouriense @ AMNH_BEE (1)
Rosaceae  Malus sp @ UCMS_ENT (2)

Photinia melanocarpa @ UCMS_ENT (2)

Prunus @ UCMS_ENT (4)

Pyrus @ UCMS_ENT (1)

Rosa rugosa @ UCMS_ENT (1)

Rubus flagellaris @ UCMS_ENT (1)

Rubus @ UCMS_ENT (2)
_  blueberry @ NLA (1)

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Updated: 2024-06-13 04:56:07 gmt
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