188 PROCEEDINGS OF THE NATIONAL MUSEUM. vol, 55. 



species which I have recorded from Natal, Brazil, as C. maculata 

 Lepeletier, but Lepeletier omits to notice any black hair on the legs 

 of maculata or versicolor. It is very probable that Lepeletier's names 

 were applied to the two sexes of the species before us, but since there 

 are discrepancies in the descriptions, it seems better, for the present, 

 to use the name suggested by Friese. 



CENTRIS BIMACULATA Lepeletier. 



Male. — El Rancho, Guatemala, January 20, 1905 (Chas. C. Deam). 



CENTRIS BIMACULATA CARRIKERI. new subspecies. 



Fetnale. — Length 18 mm. Wings hyaline basally, about as far as 

 basal nervure and including first brachial cell ; beyond this very dark 

 fuliginous; hair of thorax above creamy white. 



Aroa, Venezuela, "on Aster^"* December 16, 1910 (M. A. Carriker). 

 Looks very distinct on account of the coloration of the wings, but 

 otherwise agrees with G. himaculata. 



Type.— Cat. No. 21650, U.S.N.M. 



CENTRIS CHLORURA, new species. 



Female. — Robust, about 20 mm. long, anterior wing 14.5; head, 

 thorax, and legs black, abdomen clear green, the hind margins of 

 segments concolorous; first two segments bluer, approaching steel- 

 blue, the others yellowish green. Head with black hair, grayish be- 

 tween antennae, and more or less on lower part of cheeks ; face entirely 

 black; clj^peus prominent, with large punctures; labrum large, 

 strongly punctured ; mandibles strongly tridentate ; the teeth largely 

 fulvous; antennae entirely dark, long for a female; thorax with dark 

 gray hair, paler at sides, a tuft of pale ochreous hair behind wings ; 

 scutellum ordinary, covered with hair; tegulae black; wings fuligi- 

 nous; second submarginal cell long, not much deformed; anterior 

 and middle legs with black hair; hind tibiae and tarsi with very 

 large clear fulvous scopa; middle basitarsus with a sharp ferruginous 

 bare edge in front, its surface transversely corrugated ; anterior basi- 

 tarsus beneath with a brush of six long stout bristles, curled at end ; 

 anterior tibiae with an apical patch which appears pale or dark 

 according to the angle of vision; claws of anterior and middle legs 

 with a large inner tooth, but of hind legs slender, with the tooth 

 extremely minute; abdomen covered with long fulvous hair, not 

 banded, no black hair intermixed ; apex fringed with bright copper- 

 red hair ; apical plate rather broad. 



Piches and Perene Valleys, Peru, 2,000-3,000 feet (Geographical 

 Society of Lima). 



A remarkable species, nearest to C. f estiva Smith and C. semi- 

 caerulca Smith, but Iniown by the long hair covering the abdomen, 



