no. 1818. BEES IN THE NATIONAL MUSEUM. 2—COGKERELL. 253 



MEGACHILE RUPSHUENSIS, new species. 



Female. — Length 10 mm.; black, the small joints of tarsi ferru- 

 ginous; hair of head, thorax, and legs rather dull white, thin, not 

 at all mixed with dark; head rather large; mandibles broad, without 

 distinct teeth (doubtless worn); clypeus closely punctured, with an 

 imperfect median ridge, the lower margin thickened, slightly crenu- 

 lated, and with a minute median tubercle; front dull, except in 

 front of ocelli, where it is shining; vertex shining, sparsely punc- 

 tured; antennae black; mesothorax shining, closely punctured at sides, 

 but the disk broadly smooth, very sparsely punctured, the smooth 

 area reaching back to scutellum; scutellum with a slight median 

 eminence, which is shining; tegulse dark reddish, with paler margins; 

 wings slightly dusky; all the tarsi thick, with the hair on inner side 

 orange; hind basitarsus rather broad and flat; spurs ferruginous; 

 abdomen shining, with white hair-bands as in M. ladacensis, but no 

 ferruginous hair dorsally, the last dorsal segment having appressed 

 white hair; ventral scopa very bright fox-red, containing pollen of 

 the same color. 



Habitat. — Rupshu, Ladak, 16,000 feet, July 23, 1897 (W. L. 

 Abbott). 



I thought at first that this was the female of M. ladacensis, but the 

 smaller size and differences in sculpture make this improbable, not- 

 withstanding the close superficial resemblance. It is not impossible, 

 however, that they may belong together. 



Type.— Cat. No. 13538, U.S.N.M. 



MEGACHILE INIMICA Cresson. 



Runge, Texas, at flowers of Helianthus, September 13, 1904, three 

 females (J. C. Crawford); Dallas, Texas, at flowers of Gaillardia 

 June 10, 1907, female (F. C. Bishopp). 



MEGACHILE MEGAGYNA Cockerell. 



Ardmore, Oklahoma, July 11, two females (C. R. Jones). 



MEGACHILE VALLORUM Cockerell. 



Dallas, Texas, August 23, 1905, female (J. C. Crawford). 



MEGACHILE POLLICARIS PEREXIMIA Cockerell. 



Devils River, Texas, May 8, a small (about 12^ mm. long) male 

 (F. C. Bishopp); Devils River, May 6, 1907, at flowers of Monarda 

 citriodora, two males, the abdomen strongly infested with mites 

 (F. C. Pratt); Victoria, Texas, at flowers of Helianthus, April 26, 

 1904, two males (F. C. Bishopp); Paris, Texas, May, 1904 (Bishopp} j 

 Calvert, Texas, one male, April 6 (C. R. Jones); Kerrville, Texas, 

 April 12, one male at Marrubium vulgare (F. C. Pratt). 



