Genus - Megachile

Taxonomic Hierarchy for University of Alberta E.H. Strickland Entomological Museum


Results

14 results for "Megachile"

Megachile relativa

University of Alberta E.H. Strickland Entomological Museum

Common NameLeafcutter bee SeasonalityEmerge early July to early August (Fye 1965). May to October in southern parts (Mitchell 1962). IdentificationFemales: Relatively small body size with a length of 9-12 mm, stout and completely black body with yellow spurs (articulated spine). Eyes become slightly convergent near the bottom. Soft downy hair (pubescence) is white and is quite dense around the antennae, lower face, cheeks, lateral and posterior thorax, lateral abdomen, and between dorsal abdomen segments. Wings are subhyaline (sub transparent). Large cheeks, only slightly wider than the eyes and mouth mandibles have 5 tooth projections. Pollen collecting “scopa” on the ventral abdomen with dense yellowish short hairs. (Mitchell 1962). Males: Body length of 8-10 mm, stout and completely black body and slightly reddish legs. Eyes become slightly convergent near the bottom. Large cheeks that are slightly wider then the eyes and mouth mandibles have 3 tooth projections. Pubescence are white and very dense around the antennae, lower face, cheeks below, lateral and posterior thorax. Wings are subhyaline (sub transparent). Tergum (dorsal abdomen segment) 7 is prominent, broad, short and has a deep excavation. Sternum (ventral abdomen segment) 5 is short and restricted. Sternum 6 has few setae on each side of the midline with no obvious apical lobe. Genital armatures have slender gonocoxites with a sharp appearing apex. (Mitchell 1962).

Megachile inermis

University of Alberta E.H. Strickland Entomological Museum

Common NameLeafcutter bee SeasonalityJune to September. Nests constructed in July or August (Medler 1958). IdentificationFemales: Body is15-20mm long, stout and completely black body. Soft downy hair (pubescence) is whitish and dense around antennae, sides of face, on top of head and on sides of thorax and thicker blackish hair on dorsal surface of the thorax. Large cheeks (width is twice the size of the eyes) to house muscles used for cutting leaves and mouth mandibles have 5 tooth projections (Mitchell 1962). Deep indentation on each side of the middle bulge of the clypeus (front of head below the antennae and frons and attached to the labrum mouthpart) (Medler & Lussenhop 1968). Wings are subhyaline (sub transparent) with brownish veins. Pollen collecting “scopa” on the ventral abdomen with dense hair and pale yellowish colour (Mitchell 1962). Males: Body is 11-15 mm long, stout and completely black body. Pubescence is very dense and elongated around antennae, lower part of face, lower cheeks, posterior and sides of thorax. Pubescence elongate but less dense on dorsal surface of thorax. Large cheeks (width is twice the size of the eyes) and mouth mandibles have 3 tooth projections. Wings are subhyaline (sub transparent) with brownish veins. Robust and dense setae (bristle like-hair) on the sterna number 5 (ventral abdomen segments) and very dense setae on both sides of the midline of sterna number 6 and spine-like and elongated in the midline. Transverse apical lobe on sterna 6. Genital armatures have robust gonocoxites that are constricted medially and long setae on inner face. (Mitchell 1962).

Megachile perihirta

University of Alberta E.H. Strickland Entomological Museum

Common NameWestern leafcutting bee SeasonalityFlight period mid June - early July, ending late July (Hobbs 1956) - August (Milne & Milne 1980). IdentificationFemales: Identify with caution. Practically undistinguishable from the females of Megachile latimanus Say. Body length is 13-14 mm, stout and completely black with yellowish spurs (articulate hairs). Mouth mandibles have 5 tooth projections. Soft, downy hair (pubescent) is dense and yellow on the lower cheeks, very dense and yellow on lateral and posterior thorax. Abdomen segments are fringed with short whitish hairs. Wings subhyaline (sub transparent) and quite smoky at the apical end. Tergum (dorsal abdomen segment) 6 slightly concave and sternum (ventral abdomen segment) 6 with pollen collecting “scopa” having dense yellowish hairs and scopa is orange in colour. (Mitchell 1962). Males: Similar to M. latimuanus but recognizable by the mid basitarsal (lower segments of legs) protuberance (swelling) being much smaller, narrow and keel-shaped compared to the blunt, robust protuberance of M. latimuanus. Body length is 12-13 mm, stout, black body with front legs yellowish. Large cheeks with concave inferior margin, nearly twice as wide as the eyes and mouth mandibles with 3-tooth projection. Pubescence is yellowish and is dense and elongate around the antennae, lower face, short and thin on the cheeks with a pair of short white hair (looks like lines). Abdomen segments are fringed with short whitish hairs. Long and bright yellow hairs on the scutum (dorsal surface of middle mesothorax segment). Front tarsi (lower segments on legs) are yellow and mid and hind femur (upper leg segment) are quite swollen. Wings are subhyaline (sub transparent) at the base and appear more cloudy at the apex. Genital armatures have robust gonocoxites, which constricts above the base, setae projects towards the apex, dorsal lobe is broad and flat and ventral lobe is curved and slender. (Mitchell 1962).

Megachile whelleri

University of Alberta E.H. Strickland Entomological Museum

Megachile rotundata

University of Alberta E.H. Strickland Entomological Museum

Common NameAlfalfa leafcutter bee SeasonalityEmerge early-late June and adult activity from early June-late September (Stephen & Torchio 1961). IdentificationFemale: Body is 8-9 mm long, robust, black body and legs, brownish circular tegulae (articulate sclerite at base of the costa vein) near base of wing and yellow spurs (articulated spine). Large cheeks slightly narrower than the eyes and mouth mandibles with 4 tooth projections. Soft, downy hair (pubescence) yellowish-white and short on the face and cheeks, more elongate and white on the lower cheeks. Pubescence dense around antennae (more yellowish), sides of face, lateral and posterior thorax (shorter and yellowish) and wing bases (more yellowish). Wings are subhyaline (sub transparent). Tergum (dorsal abdomen segments) 4-6 straight in profile with short suberect hairs and abdomen segments fringed with short yellowish-white hairs. (Mitchell 1962). The scopa (pollen-collected hair basket on ventral abdomen) is silvery gray in colour unlike most other leafcutter bees that have yellow, orange, tan or black scopa (Richards 1984). Males: Body is 7-8mm long, robust, black body, brownish tegulae, front tarsi (lower segments of leg) partly yellowish with yellow spurs. Cheeks considerably narrower than eyes and mouth mandibles with 3 tooth projections. Pubescence is considerably yellow on the face and dense around antennae, lower face region and front of face. Thorax pubescence is whitish, very dense on lateral and posterior surface and both yellowish or whitish on the dorsal surface. Wings are subhyaline and appear smoky near the apex. Sterna (ventral abdomen surface) 1 – 4 are exposed and have punctures and appear yellowish and hyaline with dense elongate white hairs. Sternum 5 is broad, median area has short, fine and dense setae and sternum 6 has an broad short apical lobe, incurved medially. Genital armatures have gonocoxites, which narrow above the base, is compressed, has a curved down apex, tip elongate and narrow, setae projects towards the apex, dorsal lobe is broad and flat and ventral lobe is curved and slender. (Mitchell 1962

Megachile frigida

University of Alberta E.H. Strickland Entomological Museum

Megachile circumcincta

University of Alberta E.H. Strickland Entomological Museum

Megachile melanophaea

University of Alberta E.H. Strickland Entomological Museum

Megachile latimanus

University of Alberta E.H. Strickland Entomological Museum

Megachile gemula

University of Alberta E.H. Strickland Entomological Museum

Megachile pugnata

University of Alberta E.H. Strickland Entomological Museum

Megachile anograe

University of Alberta E.H. Strickland Entomological Museum

Megachile centuncularis

University of Alberta E.H. Strickland Entomological Museum

Megachile dentitarsus

University of Alberta E.H. Strickland Entomological Museum

Taxonomic Hierarchy for University of Alberta E.H. Strickland Entomological Museum