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© Copyright Laurence Packer 2014
· 7
Stelis foederalis MALE CFP comp |
© Copyright Laurence Packer 2014
· 7
Stelis foederalis Female |
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© Copyright source/photographer
· 5
Stelis foederalis, F, face, Michigan, Keweenaw County |
© Copyright source/photographer
· 5
Stelis foederalis, F, side, Michigan, Keweenaw County |
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© Copyright source/photographer
· 5
Stelis foederalis, M, back, Michigan, Keweenaw County |
© Copyright source/photographer
· 5
Stelis foederalis, M, face, Michigan, Keweenaw County |
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© Copyright source/photographer
· 5
Stelis foederalis, M, Side, Michigan, Keweenaw County |
Barcode of Life Data Systems · 1
Stelis foederalis, Barcode of Life Data Systems |
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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 8 mm.; head, thorax and legs entirely black, abdomen with transverse, narrow, submedian, yellowish bands on terga 1-5, that on 1 very slightly interrupted medially, the others complete; face slightly longer than distance between eyes above; eyes slightly convergent below; lateral ocelli slightly nearer margin of vertex than to each other, more distant from eyes; clypeus slightly convex, apical margin nearly straight; mandibles 3-dentate, the teeth low and about equally distant from each other; labrum smooth and shining, little if any protuberant at base; cheeks slightly broader than eyes; prothoracic tubercles with a low, inconspicuous carina; tegulae rather expansive, shining, minutely and rather sparsely punctate, largely black; wings subhyaline, veins piceous; spurs of front legs yellowish-hyaline, those on mid and hind pair blackish; front and mid tibiae each with a pair of rather short, acute, apical spines, hind tibia with a single spine; pubescence very short, thin and inconspicuous, apparently entirely pale, the more apical abdominal terga with considerable erect, setalike pubescence; punctures rather deep and distinct in general, very fine and close over face, becoming somewhat coarser above and on vertex, close and rather coarse on cheeks, slightly separated on the shining scutum and scutellum, somewhat coarser on scutellum, very close and coarse on pleura; abdominal terga shining, very sparsely punctate across median area of discs, becoming more closely punctate toward basal and apical margins, without a distinct, impunctate, apical rim, tergum 6 rather finely and shallowly reticulate; abdominal sterna uniformly, very finely and closely punctate, the apical sternum with a robust, median, elongate spine which protrudes conspicuously from tip of abdomen, superficially resembling a sting.
MALE—Length 7-8 mm.; head, thorax and legs entirely black, abdomen with transverse, narrow, submedian, yellow bands on terga 1-5, these slightly interrupted on 1-3; face somewhat longer than distance between eyes above; eyes somewhat convergent below; lateral ocelli subequally distant from margin of vertex and each other, more distant from eyes; clypeus quite flat, apical margin nearly straight, but with a pair of barely perceptible protuber.. ances on each side of center; cheeks somewhat broader than eyes; prothoracic tubercles with a very low but distinct carina; tegulae black, shining, minutely and rather sparsely punctate wings subhyaline, veins piceous; front and mid tibiae each with a pair of short but acute, apical spines, hind tibiae angulate apically but hardly spinose; spurs of front tibiae yellowish-hyaline, mid and hind pair more blackish; pubescence entirely pale, rather copious over head and thorax, nearly hiding the surface of lower part of face, quite elongate on cheeks below, copious over dorsum and venter of thorax and basal portions of legs, very thin and inconspicuous on abdominal terga, but apparently entirely pale, somewhat more copious on tergum 6; punctures quite deep and distinct in general, rather coarse on cheeks and upper part of face and vertex, becoming minute and densely crowded on dypeus and lower portions of face; punctures deep, distinct and quite coarse and close over entire thorax, being almost crowded on entire scutum and scutellum; abdominal terga largely impunctate across median area of each disc, these becoming more distinctly, closely and coarsely punctate toward base and apex, tergum 6 closely punctate throughout, more finely so toward basal margin, tergum 7 with fine, almost crowded punctures; abdominal sterna 1-3 exposed, not much modified, punctures quite close, deep and distinct, 2 and 3 with rather elongate, posterior fringes of white pubescence, 3 with a median, elevated, protuberant area at mid point; sterna 4-8 retracted and highly modified, 4 with a median, apical comb, margin on each side with a fringe of more elongate pubescence, other sternal plates as shown (fig. 13); genital armature much like that of costalis (fig. 13).
DISTRIBUTION—Minnesota to New Brunswick, south to Georgia, May to July.
FLOWER RECORD—Recorded by Robertson (1929) on Chrysanthemum leucanthemum.
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Updated: 2024-04-26 19:31:07 gmt
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