312 



Mr. T. D. A. Cockeiell — Descriptions and 



clypeus yellow, slightly suffused with reddish; triangular 

 supra.clypeal mark and lateral marks pale yellow, the 

 latter elongate, pointed above on orbital margin above level 

 of antennae, but with the inner margin reddish and not 

 sharply defined ; scape pale reddish yellow, blaek above at 

 apex ; flagellum dark ; mesothorax nude^ shining black, with 

 yellow lateral margins ; axillae yellow ; hind margin of 

 scutellum yellowish white; tubercles cream-colour; tegulse 

 pellucid rufo-testaceous ; wings hyaline, faintly dusky, stigma 

 and nervures reddish ; legs ferruginous ; hind tibise with apex 

 broadly, and hind margin except at base, black ; hind basi- 

 tarsus with a large black patch ; face and front with fine 

 short pale hair, not at all dense. 



Hab. Quirigua, Guatemala, = type locality, four workers 

 {W. P. CockereU) ; Puerto Barrios, Guatemala, one, Jan. 28, 

 1912 [W. P. CockereU). 



Looks exactly like T. jaty, Smith, but differs at once 

 by the abdomen, which is broad instead of almost linear. 

 Smith's description of T. jaty refers to the male, but I 

 have workers with the same narrow abdomen. The new 

 species also differs horn jaty by the dark flagellum and other 

 small characters. 



Trigonajnty, Smith. 



Amatitlan, Guatemala, Feb. 1912 {W. P. CockereU) ; 

 Quirigua, Guatemala, two on " common yellow Compositae/' 

 one at flowers of Zexmenia virguUa, Klatt, one Feb. 11, on 

 plant no. 15 {W. P. CockereU). 



Trigona meUaria, Smith. 



Gualan, Guatemala, one Feb. 23, at flowers of Calopogonium 

 C(jerideum, Desv., Feb. 23 {W. P. CockereU); Quirigua, 

 Guatemala, one [W. P. CockereU, 7). 



Trigona stigma, Smith. 



Quirigua, Guatemala, one {W. P. CockereU). New to 

 Central America. 



Trigona nigerrima, Cresson. 



Quirigua, Guatemala, sixteen {W. P. CockereU). Taken 

 at sap, and at flowers of Pontederia cordata, L. (Feb. 11), 

 Ipu7ncea sidcefulia, Choisy (Feb. 20), and Centrosema plumieri, 

 Benth. ( Feb. 13) . This is smaller than T. silvestriana , Vachal. 

 Is it possible tliat the "• silvestriana " reported by Vachal 

 from 13ritish Honduras was nigerrima? 



