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Coelioxys obtusiventris Crawford, 1914
Life   Insecta   Hymenoptera   Apoidea   Megachilidae   Coelioxys
Subgenus: Cyrtocoelioxys

Coelioxys obtusiventris, female, face
Smithsonian Institution, Entomology Department · 9
Coelioxys obtusiventris, female, face

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Coelioxys obtusiventris, female, side
Smithsonian Institution, Entomology Department · 9
Coelioxys obtusiventris, female, side
Coelioxys obtusiventris, female, top
Smithsonian Institution, Entomology Department · 9
Coelioxys obtusiventris, female, top

Coelioxys obtusiventris, female, wing
Smithsonian Institution, Entomology Department · 9
Coelioxys obtusiventris, female, wing
Coelioxys obtusiventris, f, back, Clark Co., Rose Pond, MO
© Copyright source/photographer · 5
Coelioxys obtusiventris, f, back, Clark Co., Rose Pond, MO

Coelioxys obtusiventris, f, face, Clark Co., Rose Pond, MO
© Copyright source/photographer · 5
Coelioxys obtusiventris, f, face, Clark Co., Rose Pond, MO
Coelioxys obtusiventris, f, hind end, Clark Co., Rose Pond, MO
© Copyright source/photographer · 5
Coelioxys obtusiventris, f, hind end, Clark Co., Rose Pond, MO

Coelioxys obtusiventris, f, left side, Clark Co., Rose Pond, MO
© Copyright source/photographer · 5
Coelioxys obtusiventris, f, left side, Clark Co., Rose Pond, MO
Coelioxys obtusiventris, f, right side, Clark Co., Rose Pond, MO
© Copyright source/photographer · 5
Coelioxys obtusiventris, f, right side, Clark Co., Rose Pond, MO

Coelioxys obtusiventris, female, top
© Mary Paul · 1
Coelioxys obtusiventris, female, top
Coelioxys obtusiventris, female, top butt
© Mary Paul · 1
Coelioxys obtusiventris, female, top butt

Coelioxys obtusiventris, female, bottom butt
© Mary Paul · 1
Coelioxys obtusiventris, female, bottom butt
Coelioxys obtusiventris, female, side
© Mary Paul · 1
Coelioxys obtusiventris, female, side

Coelioxys obtusiventris, female, face
© Mary Paul · 1
Coelioxys obtusiventris, female, face
Coelioxys obtusiventris, female, top butt
© Mary Paul · 1
Coelioxys obtusiventris, female, top butt
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 12 mm.; black, inandibles, labrum, tegulae and legs ferruginous, abdominal sterna dark red; eyes slightly convergent below, lateral ocelli slightly nearer margin of vertex than to eyes; cheeks much narrower than eyes, margin sharply carinate below; clypeus nearly flat, margin nearly straight, not produced; mandibles 3-dentate; punctures of head and thorax deep and distinct, coarse and quite close on vertex and cheeks, crowded below ocelli, and over clypeus and supraclypeal area, slightly separated on scutum medially and on scutellum, close on pleura above, more coarse and more widely separated below; tubercles sharply carinate; coxal spines reduced to dentiform tubercies; scutellum with a slight median angle; axillae slender, conspicuous, produced much beyond margin of scutellum; pubescence whitish, very short and thin, rather dense on cheek, face and clypeus, the latter with numerous erect, yellowish hairs, pleura with narrow lines of pubescence anteriorly and posteriorly, propodeum with more copious, but short, white pubescence; wings lightly infuscated, more deeply so apically, veins brownish, margin of basal concavity of tergum 1 obscurely carinate, thinly white fasciate, terga 2 and 3 with rather shallow, transverse grooves which are widely interrupted medially; punctures of abdominal terga deep and distinct, but fine, well separated on 1 and across base of 2-4, very sparse on median area of each disc, becoming rather close along apical margin, very fine and sparse on 5 and 6; tip of tergum 6 very slightly upturned; 1-5 with narrow but entire white apical fasciae, apex of 6 densely brownish tomentose, impressed on each side; sterna 1-5 closely and deeply punctate, quite coarse at base, becoming fine on sternum 5; sternum 6 slightly flared apically, with a long apical spine, apical margin with a prominent fringe of long brownish hairs, nearly equalling the spine in length.

Identification
An extremely rare species with perhaps only 4 specimens known from FL, NJ, IN, MI. The female has a very distinctive S6. It appears as a long, parallel- sided spine set atop broadly rounded shoulders with a long, thick hair fringe all along the top of the shoulders. The fringe is nearly as long as the spine. The clypeus rim is also distinctively lined with a fringe of short hairs. The male is currently unknown.

Names
Scientific source:

Geographic distribution
Florida

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Updated: 2024-04-25 00:39:31 gmt
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