T. B. Mitchell.
A Species of Megachile from Bermuda.
Psyche 36(2):93-94, 1929.

This article at Hindawi Publishing: https://doi.org/10.1155/1929/14540
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19291 A Species of Megachile from Bermuda 93 A SPECIES OF MEGACHILE FROM BERMUDAI.
A single female Megachile, captured during May, 1913, by Mr. Austin Brues in Bermuda, and sent to me by Dr. Bequaert for identification, proves to be either a variety of M. pruina Sm. or a very closely related species. Hence I will describe it here as a new variety of that species. If the male becomes available at some future time, it is possible that this will be shown to be specifically distinct from å´pruina
Megachile pruina bermdensis n.var.
Size: Length 13 mm.; breadth of abdomen 5 mm.; an- terior wing 9 mm.
Structure : Head broad ; eyes slightly converging below ; clypeus entire apically, the margin slightly thickened and. shining medially; mandibles 4-dentate; cheeks as broad as eyes; vertex flat, hind margin slightly concave; lateral ocelli slightly nearer edge of vertex than to nearest eye; basal joint of flagellum longer than the second joint; hind metatarsi almost as long and as broad as the tibiae; abdo- men cordate, the apical margins of the segments rather strongly depressed laterally, but not medially ; segment six straight in profile, slightly concave at sides in dorsal aspect, with only suberect black hairs visible in profile, the ventral plate bare except for a marginal fringe of black hairs, the apical margin extending as a bare lip beyond the apical fringe.
Puncturation: Close on cheeks and pleura, and on clypeus except in center; on the vertex close on either side of the median line, more sparse laterally; distinctly separ- Contribution from the Department of Zoology and Entomology, North Carolina State College, and published with the approval of the Director of the North Carolina Experiment Station as Paper No. 31 of the Journal Series.
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94 Psyche [June
ated on mesonotum medially, but close laterally and an- teriorly, and quite widely separated on scutellum; fine and close on basal abdominal segment, becoming relatively coarse and sparse on segment five, close and fine on segment six.
Color: Black; the tegulse and antennae below more fuscous ; the wings quite uniformly infuscated, with f uscous nervures ; spurs pale yellow.
Pubescence: White at sides of face, between antennas, on cheeks, pleura, propodeum, coxse, femora, tibiae, and basal abdominal segment; black on vertex, mesonotum, scutellum, and discs of abdominal segments 2-5, with in- termixed black hairs between antennae; more fuscous on clypeus, front tibiae and tarsi anteriorly, and on outer face of mid tarsi ; segments 2-5 with narrow entire white apical fasciae; segment six whitish tomentose, with erect black hairs laterally, these subappressed medially ; scopa white, black on segment six and at extreme sides of segment five. Type : Female ; Bermuda. Coll. Austin Brues. (Museum of Comparative Zoology, Cambridge, Mass.). This differs from typical pruina, as occuring in Florida, in the more lightly infuscated wings, and in the fact that the scopa of segment five is largely white. In M. przdna s. str. the scopa of segment five is entirely black, and that on segment four is black at the extreme sides. Otherwise, they are nearly identical. M. pruina was also described by Cres- son as M. pinguis. The male was described by Robertson as M. floridana, and by myself as M. shermani.



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