THAMBUS.— DKOM./EOLUS. 217 



1. Thambus agilis. 



Thambus agilis, de Bonv. Mon. p. 162, t. 6. fig. 6 l . 

 Hab. Mexico, Cordova (Salle *) ; Panama, Volcan de Chiriqui 2500 feet (Champion). 

 Distinguished from the following species by the presence of a distinct frontal carina. 



2. Thambus inexspectus. 



Thambus inexspectus, de Bonv. Mon. p. 163, t. 6. fig. 7 \ 

 Hab. Mexico, Cordova, Toxpam (Salle *). 



Eeadily known by the absence of elytral stria and the non-carinate front. 



3. Thambus pusillus. 



Thambus pusillus, de Bonv. Mon. p. 165, t. 6. fig. 8 \ 



Hab. Mexico, Cordova, Toxpam (Salle *) ; Guatemala, San Geronimo (Champion) ; 

 Panama, Caldera in Chiriqui (Champion). 



Smaller than the preceding species and narrower, with the elytra vaguely striate. 



DELTOMETOPUS. 



Deltometopus, de Bonvouloir, Mon. des Eucnemides, p. 171 (1870). 



This genus is also very closely related to Dromwolus, but has the antennal groove 

 wider in comparison with the prosternal triangle, and at the same time wider posteriorly 

 than in front. 



l. Deltometopus foveolatus. 



Eucnemis foveolatus, Guerin, Ann. Soc. Ent. Fr. 1843, p. 187 \ 

 Deltometopus foveolatus, de Bonv. Mon. p. 186, t. 7. figg. 7 ( ? ), 9 (<$) 2 . 



Hab. Mexico, Coahuila (Horn), Fortin in Vera Cruz (H. H. Smith), Teapa 2 ; British 

 Honduras, Belize (Blancaneaux) ; Guatemala, El Tumbador 2500 feet, Las Mercedes, 

 Zapote, Paso Antonio (Champion) ; Panama, Bugaba, Volcan de Chiriqui (Champion). — 

 South America, Bogota 2 , Cayenne K 



DROM^OLUS. 



Dromaeolus, Kiesenwetter, Naturg. der Ins. Deutschl. iv. 2, p. 197 (1858) ; de Bonvouloir, Mon. des 

 Eucnemides, p. 193. 



This genus is one of a small number in the family with fairly numerous species, and 

 at the same time with one or more representatives in nearly every part of the globe. 

 As usual, in such cases, the form is variable, with a tendency to reproduce that of 

 closely related genera, as of Fornax in temperate North America, and Thambus 

 especially in our own fauna. 



biol. centr.-amer., Coleopt, Vol. III. Pt. 1, November 1890. 2 F 



