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Sphecodes illinoensis (Robertson, 1903)
Machaeris illinoensis Robertson, 1903

Life   Insecta   Hymenoptera   Apoidea   Halictidae   Sphecodes
Subgenus: None

Sphecodes illinoensis FEM mm x ZS PMax
© Copyright Laurence Packer 2014 · 7
Sphecodes illinoensis FEM mm x ZS PMax

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Sphecodes illinoensis MAL mm x ZS PMax
© Copyright Laurence Packer 2014 · 7
Sphecodes illinoensis MAL mm x ZS PMax
Sphecodes illinoensis, m --
Michael Veit · 6
Sphecodes illinoensis, m --

Sphecodes illinoensis, m --
Michael Veit · 6
Sphecodes illinoensis, m --
Sphecodes illinoensis, f on Ante --
© Copyright Micheal Veit 2010 · 6
Sphecodes illinoensis, f on Ante --

Sphecodes illinoensis, f on Ante --
© Copyright Micheal Veit 2010 · 6
Sphecodes illinoensis, f on Ante --
Sphecodes illinoensis, f on Soli --
© Copyright Micheal Veit 2010 · 6
Sphecodes illinoensis, f on Soli --

Sphecodes illinoensis, abdomen, Dennis Johnson, Wisconsin
© Copyright source/photographer · 5
Sphecodes illinoensis, abdomen, Dennis Johnson, Wisconsin
Sphecodes illinoensis, back, Dennis Johnson, Wisconsin
© Copyright source/photographer · 5
Sphecodes illinoensis, back, Dennis Johnson, Wisconsin

Sphecodes illinoensis, head, Dennis Johnson, Wisconsin
© Copyright source/photographer · 5
Sphecodes illinoensis, head, Dennis Johnson, Wisconsin
Sphecodes illinoensis, propodeum, Dennis Johnson, Wisconsin
© Copyright source/photographer · 5
Sphecodes illinoensis, propodeum, Dennis Johnson, Wisconsin

Sphecodes illinoensis, side, Dennis Johnson, Wisconsin
© Copyright source/photographer · 5
Sphecodes illinoensis, side, Dennis Johnson, Wisconsin
Sphecodes illinoensis, tergites, Dennis Johnson, Wisconsin
© Copyright source/photographer · 5
Sphecodes illinoensis, tergites, Dennis Johnson, Wisconsin
Identification
Extracted from: Mitchell, T. 1962. Bees of the Eastern United States, I. North Carolina Agricultural Experiment Station. 1-191.

FEMALE-Length 5 mm.; head and thorax black, abdomen ferruginous basally, becoming rather strongly suffused with piceous medially and apically; head considerably broader than long; eyes very slightly convergent below; clypeus slightly convex; labrum broadly rounded, with a slight, median, apical impression, brownish-testaceous; mandibles simple, rather slender and elongate, brownish-testaceous, with base and tips more or less reddish; antennae rather uniformly reddish-piceous, basal segment of flagellum slightly broader than long, 2nd about as broad as long, and following segments slightly longer than broad; lateral ocelli subequally distant from eyes and each other; face below ocelli shining, punctures deep and distinct but fine, distinctly but not widely separated, those between antennae and eyes similarly distributed but more or less obscured by whitish pubescence, supraclypeal area with fine and slightly more sparse punctures, those on clypeus quite sparse, slightly more coarse apically; vertex shining, very finely punctate between eyes and ocelli, punctures distinctly separated, hind margin becoming finely roughened, cheeks somewhat shining above, becoming minutely and rather indistinctly striate below, but lower surface smooth and shining; wings subhyaline, with the usual three submarginal cells, veins and stigma brownish-testaceous; tegulae yellowishhyaline; legs brownish-piceous basally, becoming somewhat more reddish-testaceous apically; scutum and scutellum shining, punctures very fine but rather deep and distinct, quite sparse over most of disc of scutum, but becoming somewhat closer between notaulices and tegulae, and rather close and deep along anterior margin, scutellum with scattered, irregular and rather sparse punctures; pleura dull but relatively smooth, rugose only along anterior margin, otherwise very finely roughened or substriate; dorsal area of propodeurn quite regularly, completely and rather coarsely striak, lateral faces rather smooth but dull, finely roughened, posterior face rather finely and vaguely subreticulate near median line; abdominal terga smooth and shining, basal tergum with scattered, fine, but deep and distinct punctures, those on tergum 2 somewhat closer across base, becoming gradually more sparse apically, 3 and 4 with finer but much closer punctures over most of discs, apical impressed areas quite narrow, entirely impunctate, yellowish-hyaline.

MALE-Length 5-6 mm.; head and thorax black, abdomen ferruginous, becoming black apically; head somewhat broader than long; eyes slightly convergent below; clypeus broadly convex, somewhat flattened or impressed medially; mandibles brownish-testacreous, becoming dark at base and ferruginous at tip; antennae black basally, flagellum brownishpiceous beneath, somewhat darker above, segments 1 and 2 about as broad as long, 3rd and following segments somewhat longer than broad; lateral ocelli subequally distant from eyes and each other; lower portion of face only thinly covered with whitish pubescence, surface not fully obscured, punctures deep and distinct, fine and rather close but not crowded, those on supraclypeal area slightly more coarse and close than on sides of face, those on clypeus slightly separated across upper portion, becoming somewhat coarser and closer apically; upper portion of face with rather coarse, deep and close punctures, but these not crowded, becoming somewhat more widely separated on vertex between eyes and ocelli, hind margin obscurely striate; cheeks rather smooth, minutely and obscurely punctate above, becoming obscurely substriate posteriorly and below, lower surface quite smooth but rather dull; wings subhpaline, with the usual three submarginal cells, veins testaceous, stigma somewhat more brownish; tegulae yellowish-hyaline, with an inner, darker blotch; legs piceous, only the more apical tarsal segments becoming brownish-testaceous; scutum and scutellum somewhat shining, punctures rather deep, distinct and fine, quite close but not crowded on scutum anteriorly, becoming rather sparse posteriorly, and well separated between notaulices and tegulae, those on scutellum irregularly scattered and rather sparse; pleura dull, rather densely rugose anteriorly and above, becoming quite smooth but dull and tessellate posteriorly and below, hypoepimeral area quite smooth, with a few vague and obscure punctures; dorsal area of propodeum rather finely and completely striate, the median striae rather irregular, lateral faces smooth but dull, becoming irregularly striate below, posterior face rather smooth, with a few vague striations or reticulations; abdominal terga smooth and shining between deep and distinct, relatively coarse punctures, even the basal tergum being well covered over most of disc, only the rather narrow, impressed, apical margins of terga impunctate, these more or less ferruginous; gonostyli only slightly exceeding penis valves, rather small and slender, apex very slightly dilated and bare. (similar to stygius, fig. 117).

DISTRIBUTION-Minnesota and Ontario to the New England states, south to North Carolina; May to September.

FLOWER RECORDS-Angelica. Robertson (1929) records it on Heracleum lanaturn.


Names
Scientific source:

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FamilyScientific name @ source (records)
Asteraceae  Anthemis cotula @ UCMS_ENT (6)

Solidago tenuifolia @ UCMS_ENT (1)

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Updated: 2024-03-29 11:37:52 gmt
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