NO. 2264. BEES IN THE NATIONAL MUSEUM. 3—COCKERELL. 217 



hair on abdomen before the fifth segment. There is also some re- 

 semblance to M. chichinieca Cresson, but that has a broad hind 

 basitarsus. The mandibles of the male are formed somewhat as in 

 M. furcata Yachal. 



Type.—Q^'At. No. 21686, U.S.N.M. 



MEGACHILE POCULIFERA, new species. 



Male. — Length about 12 mm.; anterior wing 8.9; black, including 

 the slender antennae; form parallel-sided, but abdomen not very 

 long; head broad; eyes black above and posteriorly, green below and 

 in front, the separation of the two colors diagonal ; face densely 

 covered with pale fulvous-tinted hair (wholly without black), 

 strongly contrasting with the pure white hair of cheeks; white 

 fringe on lower side of head continued to outer side of coxae; vertex 

 finely punctured; mesothorax and scutellum dull, the punctures 

 hardly visible under a lens; a narrow white line of hair in scutello- 

 mesothoracic suture ; hair of thorax white at sides and below, above 

 scanty and not so clear white, that on disk of scutellum brown; the 

 vertex also has long fuscous liair; tegulae dark brown; wings 

 strongly suffused with brown, especially in the costal and apical 

 regions; legs very dark brownish, with white hair, pale orange on 

 inner side of middle and hind tarsi ; anterior coxae with very long 

 spines, from the basal part of which long wdiite hairs extend pos- 

 teriorly ; apex of anterior tibit^e yellow ; anterior tarsi bright yellow, 

 with a long posterior fringe, which is largely ferruginous apically; 

 first joint boat-shaped, extremely deeply hollowed, but not very 

 long, its inner margin with a black fringe; the other joints essen- 

 tially as in M. hoioardi; middle femora with a sharp tooth on middle 

 of under side; middle tarsi densely clothed with white hair on outer 

 side; middle and hind tarsi ferruginous apically; abdomen shining, 

 the segments with white hair bands; hair on disk of segment 2 

 brown, on the others black, long and coarse on fifth; keel of sixth 

 segment emarginate in middle, and stronglj^ j'^gged or dentate with 

 about three teeth on each side; no ventral spines. 



Mexico. (Baker collection, 1785.) Eelated to M. howardi., but 

 larger, with yellow hair on face and other characters. 



Type.—Q^t. No. 21687, U.S.N.M. 



MEGACHILE NIGROLATERALIS, new species. 



Female. — Length about 12 mm., robust, with broad conical abdo- 

 men ; black, including antenna, the legs obscurely reddish ; head 

 broad ; eyes green ; mandibles quadridentate, with apical tuft of fox- 

 red hair; clypeus and supraclypeal area shining, with large punc- 

 tures; hair of face, cheeks, and occiput pale yellowish, of vertex 

 black; vertex well punctured, with a shining smooth spot on pos- 



