252 THE CANADIAN ENTOMOLOGIST 



Reuter (Hemip. Gym. Eur., V, p. 7) and Saunders (British Heterop- 

 tera, p. 263). The writer strongly suspects, though regretfully, 

 that the above represents an importation of Bothynotus pilosus 

 Boheman on some of the shrubbery in Col. Huff's park. 



SOME NEOTROPICAL MEGACHILID BEES. 



BY T. D. A. COCKERELL, BOULDER, COLO. 



The specimens recorded below are in the U. S. National 

 Museum. 



Anthidium chubuti Cockerell. 



Both sexes from Chubut, Patagonia (from W. F. H. Rosen- 

 berg). There is great variation in size, and the femora may show 

 much or little black. The male, not previously known, differs by 

 having the clypeus and space between clypeus and eyes, and 

 mandibles except apex (which is bidentate) and extreme base pale 

 yellow; vertex with either a complete band or a pair of spots; 

 face with pure white hair; greater part of pleura with pure white 

 hair, but posteriorly it is black; vertex, mesothorax and scutellum 

 (except posteriorly) with fulvous hair; occiput and metathorax 

 with black hair, front with sooty; marks on abdomen variable,' 

 the posterior three pairs may be reduced to spots. The large 

 male has a small third tooth on the mandibles. A. patagonicum 

 Schrottky, published about a month and a half later, is evidently 

 the same species. 



Anthidium rubripes Friese. 



Male. — Mendoza, Argentina (C 5. Reed). The hair on head 

 and thorax is white, not "yellowish brown," as Friese describes; 

 but the insect otherwise agrees, and there is no other species from 

 Mendoza like it. The species is closely allied to A. chubuti, but 

 narrower and quite distinct. The male mandibles are bidentate 

 at end, and have on inner side a large, black, triangular plate. 



Hypanthidium taboganum, sp. n. 



d^, (Type). Length 7-8 mm.; black and .bright chrome 

 yellow, only the tegulae, knees, scape behind (in front yellow) 

 and base of flagellum red; head and thorax extremely densely 

 punctured, with scanty hair, that on head and thorax above fox- 

 red; yellow markings as follows: mandibles except apex, clvpeus, 



July. 1917. 



