192 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.55. 



wings dark fuliginous, shining purple; legs dark, the femora dark 

 chestnut red ; anterior and middle legs with black hair, but the very 

 large scopa of hind tibiae and tarsi brilliant orange fulvous ; abdomen 

 very minutely punctured, dullish, the first segment dorsally polished 

 and shining; apical plate much broader at end than in G. rubella. 



Palcazu, Peru (Rosenberg). A member of the group of G. fer- 

 sonata^ rubella, etc., recognizable by the face-markings, lilacine abdo- 

 men, and structure of scutellum. 



Tyye.—Q^t. No. 21656, U.S.N.M. 



CENTRIS SCHWARZI, new species. 



Female. — Length, about 17 mm. ; robust, agreeing in size and form 

 and most details of color with G. 'personata Smith, but the hair of 

 head and thorax is black, except on cheeks, where it shades into 

 grayish chocolate, and on metathorax and hind part of scutellum, 

 where it is pale ochreous, abruptly contrasting; clypeus with only a 

 small cuneiform yellow mark on upper part; lateral face-marks 

 thorn-shaped; scape with a small yellow mark; wings dark fuligi- 

 nous. Labrum with long dark chocolate hairs; anterior and middle 

 knees with a yellow spot; scopa of hind legs very large, pale fulvo- 

 ochraceous; abdomen moderately shining, apical plate much broader 

 at end than in G. rubella. 



Cacao, Alta Vera Paz, Guatemala, March 26, 1906 (Barber and 

 Schwarz). 



Type.— Ciit. No. 21657, U.S.N.M. 



CENTRIS NIGROFASCIATA Frieae. 



Guayaquil, Ecuador ; a long series. 



CENTRIS CITROTAENIATA Gribodo. 



Rio Mato, Caura district, Venezuela (Carriker) ; British Guiana, 

 April 24, 1901 (R. J. Crew). 



CENTRIS CAELEBS Friese. 



Ibarra, Ecuador (Rosenberg). 



CENTRIS ATRA Friese. 



Rio Mato, Caura district, Venezuela (Carriker). The male has 

 the wings more lilac, the female more green. G. xylocopoides Fox is 

 a synonym. 



EPICHARIS AFFINIS, variety QUADRINOTATA (Mocsary). 



Female. — La Lajita, Rio Mato, Venezuela, October, 1909 (Car- 

 riker). Mocsary described this as a species, but it is only a variety 

 of E, aifinis Smith. 



