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Megachile integrella Mitchell, 1926
Megachile (Xeromegachile) integrella Mitchell, 1926

Life   Insecta   Hymenoptera   Apoidea   Megachilidae   Megachile
Subgenus: Megachiloides

Megachile integrella, female, face
Smithsonian Institution, Entomology Department · 9
Megachile integrella, female, face

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Megachile integrella, female, side
Smithsonian Institution, Entomology Department · 9
Megachile integrella, female, side
Megachile integrella, female, top
Smithsonian Institution, Entomology Department · 9
Megachile integrella, female, top

Megachile integrella, female, wing
Smithsonian Institution, Entomology Department · 9
Megachile integrella, female, wing
Megachile integrella, F, Back, NC, Moore County ---.. ZS PMax
© Copyright source/photographer · 5
Megachile integrella, F, Back, NC, Moore County ---.. ZS PMax

Megachile integrella, F, Face, NC, Moore County ---.. ZS PMax
© Copyright source/photographer · 5
Megachile integrella, F, Face, NC, Moore County ---.. ZS PMax
Megachile integrella, F, face, Moore County, NC ---.. ZS PMax
© Copyright source/photographer · 5
Megachile integrella, F, face, Moore County, NC ---.. ZS PMax

Megachile integrella, F, side, Moore County, NC ---.. ZS PMax
© Copyright source/photographer · 5
Megachile integrella, F, side, Moore County, NC ---.. ZS PMax
Megachile integrella, F, Side, NC, Moore County ---.. ZS PMax
© Copyright source/photographer · 5
Megachile integrella, F, Side, NC, Moore County ---.. ZS PMax

Megachile integrella, Barcode of Life Data Systems
Barcode of Life Data Systems · 1
Megachile integrella, Barcode of Life Data Systems
Megachile integrella, female, mandibles
© NC Agriculture State Experiment Station Technical Bulletin Number 152, T. B. Mitchell, 1962 · 1
Megachile integrella, female, mandibles

Megachile integrella, female, mandibles
© NC Agriculture State Experiment Station Technical Bulletin Number 152, T. B. Mitchell, 1962 · 1
Megachile integrella, female, mandibles
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 10-12 mm.; black, tegulae more testaceous, legs black, spurs yellow; eyes very slightly convergent below; dypeal margin nearly straight; mandibles 4-dentate, a bevelled edge between 3rd and 4th teeth; lateral ocelli subequally distant from eyes and margin of vertex; cheeks subequal to eyes in width; vertex somewhat shining, punctures quite deep and distinct, rather fine and close medially, becoming slightly more widely separated but still close laterally, close and rather irregular on cheeks; punctures just below anterior ocellus very slightly separated, face otherwise densely and finely rugose, punctures of supraclypeal area distinct but fine and very close, densely crowded across upper margin of clypeus, becoming somewhat more coarse and distinct yet close toward apical margin; pubescence short and white around antennae, face laterally and on cheeks below, very fine, short and thin elsewhere, vertex with some short, inconspicuous, erect, blackish hairs back eyes and between ocelli; thorax with short, whitish pubescence laterally and posteriorly, scutum covered in large part with very thin, erect, blackish hairs, these becoming somewhat whitish toward anterior margin, scutellum and axillae with some erect, blackish hairs; scutum rather dull, punctures shallow and somewhat separated medially, becoming fine and very close laterally, slightly separated scutellum medially, becoming close laterally, very minute and densely crowded on axillae; pleura dull, punctures very close and rather fine, becoming crowded above; lateral faces ofpropodeum rather smooth but dull, somewhat tessellate, posterior face more velvety, with very close, exceedingly minute and vague punctures; mid and hind basitarsi about as broad as their tibiae, but distinctly shorter; tegulae very minutely and rather closely punctate; wings subhyaline, veins more brownish; abdominal terga 2-5 quite deeply grooved or depressed across base, basal margins of these distinct but hardly carinate, apical margins with entire, whitish fasciae that are very thin medially but dense laterally; margins of terga quite deeply depressed laterally, completely so on 3-5; basal tergum with rather copious, erect, thin, whitish pubescence which becomes very dense at extreme sides, discal pubescence of 2 rather pale but becoming more or less blackish at extreme sides, discal pubescence of 3-5 very short but erect, entirely black, quite distinct at least laterally in dorsal view; tergal punctures minute, somewhat separated at least medially, becoming very close laterally; tergum 6 straight in profile, with a few, suberect, blackish hairs evident, rather broadly rounded, largely covered with rather thin, pale tomentum, punctures very fine and close beneath the tomentum; sternum 6 quite uniformly covered with short, brownish scopal hairs, these becoming somewhat more sparse toward the short, but dense apical fringe; scopa white, possibly with a few black hairs apically on sternum 5; the more basal sterna with very fine, and close punctures, these becoming somewhat more coarse and distinct on the more apical sterna; sternal fasciae not evident.

MALE Length 10-11 mm.; black, tegulae more brownish-testaceous, front legs yellow and testaceous in part, mid and hind legs black, spurs pale yellow; eyes very slightly convergent below; clypeal margin nearly straight beneath the dense beard; mandibles 3-dentate, inferior process nearly median in position, triangularly acute; apical segment of flagellum slender and elongate; lateral ocelli very slightly nearer eyes than to margin of vertex; cheeks slightly narrower than eyes, quite strongly narrowed below, without a definite, inferior angle; vertex shining, punctures quite deep and distinct, rather close between ocelli, becoming slightly separated toward margin laterally, close but rather coarse on cheeks above, becoming fine and densely crowded below; punctures below ocelli densely crowded and rather coarse, becoming very fine and densely crowded laterally and below; pubescence whitish, rather dense and copious around antennae and over lower part of face, that on cheeks snowy white, rather elongate and dense below, becoming thin and short above, vertex with rather sparse, elongate, pale hairs and shorter, erect, fuscous hairs, these extending slightly on to upper part of cheeks; thorax with rather short, copious, white pubescence laterally and posteriorly, that on propodeum dorsally more elongate, scutum and scutellum with rather thin but erect, fuscous pubescence, this becoming whitish anteriorly on scutum, scutellum with whitish hairs posteriorly; scutum rather dull, punctures quite deep and distinct, rather coarse, well separated medially, becoming somewhat finer and densely crowded laterally, scutellum somewhat shining between rather evenly spaced, close punctures, and axillae densely and finely punctate; pleura closely and rather coarsely punctate beneath the pubescence, punctures becoming somewhat finer and densely crowded above; lateral faces of propodeum smooth and somewhat shining, with numerous, rather indistinct, very vague punctures, posterior face more velvety, with numerous, very close but minute and obscure punctures; front coxal spines very short but distinct, subtriangular, base nearly as broad as the length, narrowly rounded at tip, anterior surface of coxae quite closely and finely punctate, without a patch of bristles below the spine; front tarsi narrow and simple, pale yellow, with slightly brownish anterior and posterior margins, basitarsi not at all excavated, much narrower than the tibiae, posterior fringe rather thin, whitish, of moderately long hairs; outer face of front tibiae piceous, the other two faces more testaceous; posterior face of front femora piceous except for the more yellowish, lower, carinate rim, anterior face yellowish-testaceous; mid tibial spur well developed; mid tarsi slender and rather short, but with a posterior fringe of very long, whitish hairs; hind hasitarsi quite slender; tegulae minutely and closely punctate; wings subhyaline basally, becoming slightly infuscated apically, veins brownish-piceous; abdominal terga 2-5 rather deeply depressed across base, basal margin of depressions only obscurely carinate, apical margins of terga depressed, completely so on 3-5, but widely interrupted on 2, with white apical fasciae, widely interrupted on 2 but entire on 3-5; tergum 1 with rather copious, elongate, white pubescence that becomes quite dense at extreme sides, discal pubescence of 2 and 3 short, quite sparse medially, becoming rather dense toward lateral margins, largely fuscous but white in part on 2; punctures close and rather fine and terga 1 and 2, slightly coarser on 3 and 4, minute and rather sparse on 5 toward base but becoming quite close and coarse toward apical rim, this tergum with considerable pale tomentum toward base; tergum 6 densely and narrowly tomentose across base, finely and closely punctate, carina irregularly rounded, margin rather finely serrate but not emarginate, lateral teeth of apical margin strongly carinate, very much nearer the obscure, lateral angles than to each other; tergum 7 transverse, with a very low, median, apical angle; sterna 1-4 exposed, quite deeply and rather closely and regularly punctate, apical margins rather broadly depressed and hyaline, apical pubescence rather elongate, each sternum being subfasciate; lateral pubescent plates of sternum 5 rather indistinct, setose area rather restricted, separated from scierotized portions of plate by a membraneous zone, setae quite sparse, minute and simple (fig. 48); sternum 6 with rather elongate, transverse, setose areas that are distinctly separated medially, setae robust, sinuate and spatulate, apical lobe short and rather broad, angles forming elongate, acute lobes; gonocoxites constricted above base, dilated and sinuate apically, with a ventral, subapical, oblique, carinate ridge which is minutely pubescent (fig. 49).

DISTRIBUTION Coastal North Carolina to Florida, May and June.

FLOWER RECORDS Hypericum and Oxydendrum.

Names
Scientific source:

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FamilyScientific name @ source (records)
Clusiaceae  Hypericum sp @ BBSL (2)

Hypericum @ UCRC_ENT (2)

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Updated: 2019-10-20 13:59:49 gmt
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