412 Messrs. T. D. A. Cockerell and W. Porter on Bees. 



must be congeneric. The second submarginal cell is sub- 

 triangular and about half the size of the third. 



It seems questionable whether MegaciHssa can be separated 

 from Caupolicana, Spinola, which has two years priority 

 over it ; but it may be tiiat the species with green abdomens, 

 referred by Friese to Megacilissa, should be generically sepa- 

 rated. In any event, typical MegaciHssa is the form with a 

 black, white-banded abdomen, and not the green type, as 

 Friese has it. We do not propose a name for the latter 

 group, having no specimens. 



CalliopSIS, Smith. 

 Calliopsis teucrii, sp. n., Ckll. 



? . — Length 64 millim. 



Black ; appearance of G. andremformis , with the same 

 abdominal hair-bands, which are pale ochreous. Clypeus 

 entirely black, the only pale marks on face are a couple of 

 round or subquadrate white spots contiguous with the orbital 

 margins at the level of the supraclypeal area. Mandibles 

 rufescent about the middle; flagellum yellowish beneath 

 towards the end ; scape strongly and densely punctured ; 

 front below ocelli very closely punctured ; clypeus with large 

 punctures on a shining surface ; tegul^ shining piceous ; 

 mesothorax and scutellum very closely punctured ; abdomen 

 with a minutely roughened sericeous surface ; spot on tubercles 

 and an interrupted stripe on hind border of prothorax white ; 

 legs dark, with the tarsi pale ferruginous, and the anterior and 

 middle knees with a small white spot; wings rather smoky; 

 marginal cell obliquely truncate; second submarginal cell 

 narrowed considerably more than half to marginal; middle 

 femora flattened to an acute keel beneath. 



Hah. Las Vegas, New Mexico, July 11, 1899 {Ckll). 

 One at flowers of Teiicn'um laciniatum. 



Calliopsis verhence, sp. n., Ckll. & Porter. 



$ . — Length about 8-9| millim. 



Black, with grey pubescence arranged about as in C. colo- 

 radensis. Head transversely oval, facial quadrangle a little 

 broader than long ; vertex seen from in front rounded ; a 

 smooth shining space on each side of the ocelli, but vertex 

 otherwise strongly punctured; clypeus shining, with large 

 sparse punctures ; face moderately hairy ; antenna short, 

 dark, the flagellum obscurely brown beneath; clypeus with 

 the anterior edge black, but just before it a transverse band of 



