MONOCEEPIDIUS. 343 



Guatemala (coll. Jansori) ; Nicaragua, Chontales (E. M. Janson) ; Panama, Volcan de 

 Chiriqui (Champion). 



This is a common insect in Central America. M. rodriguezi is closely allied to 

 M decimus, but has longer and more attenuate elytra. In both species (the types of 

 which I have examined) the elytra are emarginate at the apex, with the outer apical 

 angle acutely produced. The antennae are a good deal longer in the male than in the 

 female, the insect in this respect approaching M. longicornis, Cand., from Colombia *. 

 A male from Chiriqui is figured. 



2. Monocrepidius sinaloae. 



Monocrepidius sinaloce, Cand. Ann. Soc. Ent. Belg. 1889, p. 91 (Elat. Nouv. iv. p. 25) l . 

 Hab. Mexico, Presidio de Mazatlan (Forrer), Sinaloa \ 



Two specimens, agreeing with one communicated by Dr. Candeze. M. sinaloce 

 closely resembles the pallid form of M. decimus, Cand., but differs from it in its more 

 parallel shape. 



3. Monocrepidius depressipennis. 



Monocrepidius depressipennis, Cand. Monogr. Elat. ii. p. 252 l . 

 Hab. Mexico l (Salle). 



A single abraded specimen of this species is contained in the Salle collection ; it has 

 the apex of the elytra conjointly emarginate, with the sutural angle acute and the 

 outer angle rounded. 



4. Monocrepidius flavangulus. (Tab. XV. figg. 7, var. vittatus, 6; la, 



genitalia, 6 .) 



Monocrepidius flavangulus, Cand. Monogr. Elat. p. 250 \ 



Hab. Mexico 1 , Cordova, Tuxtla, Oaxaca (Salle), Playa Vicente, Jalapa (Hbge), 

 Orizaba {coll. Janson), Atoyac in Vera Cruz (H. H. Smith) ; British Honduras, 

 K. Hondo (Blancaneaux) ; Nicaragua, Chontales (Belt). 



Var. The elytra with a broad submarginal vitta ferrugineo-testaceous. 

 Monocrepidius vittatus, Cand. loc. cit. p. 251 2 . 



Hab. Mexico 2 , Puebla, Cordova, Toxpam (Salle), Playa Vicente, Jalapa, Oaxaca 

 (Edge), Atoyac in Vera Cruz (H. H. Smith), San Francisco in Vera Cruz (Wichham) ; 

 Guatemala, San Geronimo (Champion). 



We have received many specimens of both forms of this species ; the typical form 

 * M. angulatus, Steinh., from Colombia, the type of which is before me, is a female of M. longicornis. 



