182 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 65. 



MEGACHILE DOEDERLEINII Friese. 



Kuling, Kiangsi, China (N. Gist Gee 51a). 



OSMIA (PACHYOSMIA) PEDICORNIS, new species. 



Female. — Length nearly 15 mni. Eobust, hairy, obscure green; 

 head large, with broad cheeks and vertex; middle of face with very 

 long outstanding reddish hair ; sides of face and lower part of front 

 with long dull white hair, slightly creamy; upper part of front 

 with thin black hair ; cheeks and upper part of head behind with long 

 white hair; mandibles broad and long, with two teeth; clypeus ex- 

 cavated in middle, forming a smooth basin, lower margin strongly 

 bidentate, sides with enormous horns shaped like a boot, the toe 

 turned inward and downward; antennae black, scape long; meso- 

 thorax finely and very densely punctured; hair of thorax long and 

 erect, rather dull white, on scutellum slightly stained with brown; 

 tegulae rufopiceous; wings greyish, a fuliginous streak in marginal 

 cell; second submarginal cell very long; legs black, hair of tarsi 

 mainly ferruginous; abdomen broad, shining, with long white hair 

 on first segment and base of second ; on third the hair is dark brown, 

 on fourth and fifth black ; ventral scopa orange. 



Soochow, China (N. Gist Gee 125). 



Type.— Cut. No. 20715, U.S.N.M. 



A distinct and remarkable species, allied to the European 0. cornuta 

 (Latreille), but the abdomen is less densely hairy, the pubescence is 

 quite differently colored, and the clypeal processes are differently 

 shaped. 



A male from the same locality (N. Gist Gee. No. 126) is referred 

 here with confidence. It is about 12 mm. long, narrower than the 

 female, and runs in Friese's table of Palaearctic species next to 0. 

 Tufa^ from which it is quite distinct. Clypeus simple ; antennae long, 

 reaching to end of thorax, entirely dark ; hair of face and front long, 

 creamy white, but black hair in region of ocelli ; abdomen with black 

 hair on fourth and fifth segments ; six segment with reddish hair and 

 entire margin ; margin of fourth ventral segment broadly truncate in 

 middle ; tarsi with apical joint red. The long maxillary blade has a 

 dark longitudinal band as in O. rufa. 



OSMIA AZTECA Cresson. 



Cresson only described the female. The male (Mexico, Baker col- 

 lection 2386, and one labeled Mexico, without further data) is about 

 11 mm. long; hair of face pale ochreous; antennae long, entirely 

 black; hair of thorax above orange-fulvous, but white on mesopleura; 

 area of metathorax dull; abdominal segments 3 to 5 with the red 

 fringes very bright and glistening; sixth segment truncate (faintly 

 emarginate) in middle; seventh strongly bidentate. 



