HANCOCK 141 



advanced beyond the eyes; antero-dorsal margin of 

 pronotum rounded-subangulate, dorsum almost 

 deprived of the irregular longitudinal rugulae; 

 pronotal process scarcely passing posterior femora; 

 wings fully developed. gjiatcvialtcca, Bol. 



The following key to the species of Central America does 

 not include any of the above mentioned species. 



KEY TO SPECIES OF CENTRAL AMERICA." 



A. Vertex blunt, more or less truncate; eyes prominent. 



B. Posterior sinus of the lateral lobes of the pronotum 



relatively shallow; vertex truncate. 



C. Dorsum of pronotum smoothly granulate, horizontal, 



distinctly depressed at the shoulders. hruncri, Morse. 



C. C. Dorsum of pronotum with conspicuous, nearly per- 



current irregular longitudinal rugulae; horizontal or 

 somewhat depressed at the shoulders in the male, 

 arched near the front margin in the female. 



chichiincca, Sauss. 



B. B. Posterior sinus of the lateral lobes of the pronotum 

 of usual depth; vertex scarcely truncate ; pronotum 

 granulate, horizontal in the male, a little arched in 

 the female. iiicamgiia:', Brun. 



A. A. Vertex a little advanced, subangulate; pronotum 



decidedly arched longitudinally. plagiata, Morse. 



A. A. A. Vertex advanced; eyes not prominent. 



D. Vertex equal to or less than one of the eyes in width, 



the mid-carina well developed; anterior margin 

 of the pronotum little produced, rounded; surface 

 smoothly granulate, rugulae barely visible; scapu- 

 lar area distinct, triangular, widest at the humeral 

 angles; a very small and slender species. 



parviila, Morse. 



D. D. Vertex wider than one of the eyes. 



E. Scapular area absent; surface smoothly granulate; 



♦.'Vs some of the species mentioned are unknown to the present writer, ttie key here 

 given is taken literally (rom Prof. A. P. Morse's article in the Biologia Centrali Americana. 



