TEACHYS.— BKACHYS. 131 



TRACHYS. 



Wot 

 Trachys, Fabricius, Syst. Eleuth. ii. p. 218 (IS*!). ' 



The species described below appears to be undoubtedly congeneric with the European 

 Trachys troglodytes, which it very much resembles. It is the only American- species of 

 the genus known to me. 



1. Trachys segregatus. 



Oblongo-ovalis, convexus, Eeneus, nitidus ; capite parce punctato ; thorace discrete punctate- ; elytris sat crebre 



punctatis. 

 Long. 1| lin. 



Hal. Guatemala, Coban in Vera Paz (Champion). 



This species resembles T. troglodytes in many respects. It is, however, smaller and 

 relatively narrower, and has the elytra longer and more gradually narrowed to the 

 apex. The head is a little narrower, and has no median channel. The thorax is not 

 quite so short, the sides more distinctly margined, and the posterior angles less 

 diverging; the punctures are much smaller and not very close together. The elytra 

 have the humeral callus more distinct and glabrous; the punctuation is irregular, and 

 the punctures are much smaller, moderately close together. The under flanks of the 

 prothorax have a few large shallow punctures occupying the greater part of the surface, 

 and there are somewhat similar punctures scattered over all the underside of the insect. 



BRACHYS. 



Brachys, Solier, Ann. Soc. Ent. Fr. ii. p. 312 (1833). 



Species of this genus appear to occur throughout America. The following table may 

 assist in determining the Central-American representatives : — 



I. Elytra with a lateral carina. 



a. Elytra with tufts of hair Species 1. 



b. Elytra without tufts of hair Species 2-7. 



II. Elytra with the lateral carina interrupted at the middle . . . Species 8. 



III. Elytra without lateral carina Species 9. 



<S l. Brachys floccosus. 



Brachys floccosa, Mann. Bull. Mosc. viii. p. 118 (1837) '. 



Had. Mexico, Oaxaca 1 , Juquila, Parada (Salle) ; Guatemala, San Geronimo, Cape- 

 tillo, Cerro Zunil 4000 feet (Champion). 



The example from San Geronimo and another from Capetillo have the brush on the 

 elytra entirely black ; the specimen from Cerro Zunil agrees with the Mexican examples 

 in having the basal portion of the brush ferruginous. 



S2 



