6 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.60. 



The clypeus (except a black band on each side, not reaching lat- 

 eral corners), labrum and greater part of mandibles are cream color; 

 there is a narrow transverse supracylpeal band; lateral face marks 

 consisting of bands along the orbits, ending very acutely about level 

 of antennae ; scape cream color in front. 



CENTRIS POECILA SEGREGATA Crawford. 



Female. — Cayuga, Guatemala, June, 1915 (Wm. Schaus). The 

 wings are dilute fuliginous. 



CENTRIS TRIGONOIDES Lepeletler. 



San Salvador (S. Calderon). Five males. This agrees with Le- 

 peletier's description, noteworthy points being the dark legs (with 

 tarsi chestnut red), the greatly swollen hind femora, and the white 

 face markings. In the long spines on the hind trochanters and the 

 color of the antennae it agrees with 0. dentipes Smith. The hind 

 tibiae have black hair on outer side, and their femora a good deal of 

 black hair beneath. The eyes are rather pale purplish red ; in male 

 tarsata Smith, from Guatemala, they are green. The eyes are also 

 green (with dark margins) in 0. totonaca Cresson. 



MESONYCHIUM DECORATUM Smith. 



Cayuga, Guatemala, May (Schaus and Barnes) ; Posoya, Ecuador 

 (F. Campos R.). 



EUGLOSSA (GLOSSURA) IGNITA Smith. 



Males from Cayuga, Guatemala, September, 1915 (Wm. Schaus), 

 and Colombia (Baker collection). The latter is unusual in having 

 the scape dark, with a small yellow spot, and the mesothorax more 

 or less coppery. 



EUGLOCGA (GLOSSURA) PILIVENTRIS IMPERIALIS, new sabipecies. 



Fe7n.ale. — Rich green, but when seen from a direction opposite 

 the light appearing briUiant purple ; on the abdomen the broad hind 

 margin of the first segment is especially purple. 



Rio Trinidad, Panama, March 16-23, 1912 (August Busck). Four 

 females, quite uniform in their beautiful coloration. 



Type.—Csit. No. 24882, U.S.N.M. 



EUGLOSSA VARIABILIS Friese. 



Male. — Alhajuelo, Canal Zone, Panama, May 28, 1912 (A. Busck). 

 This species is a little larger than E. co7'data, and more shining, but 

 it is possible that Ducke is correct in regarding it as a form of 

 cordata. 



EUGLOSSA VARIABIUS MIXTA Friese. 



Fernale. — Rio Trinidad, Panama, March 19, 1912 (A. Busck) . 



