266 E. T. CRESSON. 



smooth, polished and dull testaceous, with a narrow band of short, dense snow- 

 white pubescence at base, apex broadly rather deeply emargiuate, with lateral 

 angles prominent. Length .35 inch. 

 Four specimens. (Belfrage.) 



Megachile facunda, n. sp. 



% . — Robust, black, clothed with a short, rather dense, pale ochraceous pu- 

 bescence, very dense and wbitish on face, clypeus, cheeks beneath and on 

 pleura beneath; head large, broad; antenna? slender, simple; thorax very 

 densely sculptured, pubescence thin on mesothorax, long on metathorax; tegu- 

 las rufo-testaceous; wings hyaline, slightly dusky at tips; legs with pale pubes- 

 cence posteriorly, smooth and shining anteriorly, four anterior femora and 

 tibiae witbin more or less tinged with ferruginous, tarsi slender, simple, 

 fringed behind with long pale pubescence, beneath with short dense yellow 

 pubescence; abdomen broad, about a3 long as head and thorax, depressed, the 

 segments with an apical fringe of short, dense, pale ochraceous pubescence, 

 long on sides of first segment which ia broadly concave at base, basal margin 

 of second and following segments with a band of short dense pale ochraceous 

 pile, which covers the apical segment, the tip of which is deeply notched cen- 

 trally, the angles acute and directed inwardly, beneath the edge has two short, 

 stout, acute incurved teeth on each side; venter with a long tolerably dense 

 pale pubescence. Length .50 inch. 



Four specimens. (Belfrage.) In general appearance this some- 

 what resembles comata, but that species is stouter and has the an- 

 terior tarsi dilated. 



Megachile frugalis, n. sp. 



& . — Black, opaque ; head large, closely punctured, face and clypeus with a 

 long, dense white pubescence, mixed with black on middle of face and base of 

 clypeus, cheeks with long white pubescence, that on vertex long, sparse and 

 mixed with blackish; antennae slender, black, pointed at tip; thorax opaque, 

 indistinctly punctured, on mesothorax and scutellum the pubescence is cinere- 

 ous strongly mixed with black and not so dense as to hide the surface, while 

 on the metathorax and pleura it is long, rather dense and white; wings sub- 

 hyaline, faintly tinged with yellowish, apex fuliginous, slightly violaceous; 

 legs slender, simple, clothed with white pubescence, long on femora behind 

 and dense on tarsi, the anterior pair of which have a long fringe posteriorly; 

 abdomen convex, shining, closely and finely punctured, clothed with short 

 cinereous sericeous pubescence, the segments with a narrow apical fringe of 

 short, dense snow-white pubescence, first segment deeply concave at base, 

 apical segment irregularly concave, the posterior edge compressed, deeply 

 notched centrally leaving a subacute tooth on each side, the lateral edge very 

 irregular, with a short tooth on each extreme side, beneath the edge has a 

 Bingle obtuse central tooth. Length .45 inch. 



One specimen. (Coll. G. W. Belfrage.) A very distinct species. 

 The pubescence of the face is curiously arranged, that on the sides is 

 directed laterally, that on the middle upwardly, that on the clypeus 

 except base downwardly, while the black pubescence on base of cly- 

 peus is erect and conspicuous. 



