MONOCREPIDITJS. 353 



Rah. Guatemala, Chacoj and Teleman in the Polochic valley (Champion) ; Nicaeagua, 

 Chontales (Belt, Janson); Panama, Bugaba (Champion). 



Twelve specimens, including one of the variety, the latter being from Bugaba. 

 Closely allied to M. aversus, Lee, but less opaque, the elytra relatively shorter and 

 each with a large flavous or testaceous spot near the apex. From the similarly-coloured 

 M. stieturus, Cand., from Venezuela &c, it may be known by the broader and less 

 acute hind angles of the thorax, the carina of which is much shorter and finer, and 

 extends obliquely imvards in front. M. (JEolus) variabilis, Fleut., from Venezuela, is 

 also a closely allied form ; but it has the elytra narrowing from the base, and also 

 differently coloured, the scutellum infuscate, &c. The apical spots in M. bipustulatus 

 are sometimes small. A specimen from Teleman is figured. 



26. Monocrepidius varians. (Tab. XV. fig. 18.) 



Monocrepidius varians, Steinh. Col. Hefte, xiv. p. 121 \ 

 Monocrepidius baleni, Steinh. loc. cit. p. 122 2 . 

 Monocrepidius latus, Dej. Cat. 3rd edit. p. 98 3 . 



Hab. Guatemala, San Geronimo and El Jicaro in Vera Paz (Champion) ; Panama, 

 Bugaba and Caldera in Chiriqui (Champion). — Colombia 3 , Muzo \ San Carlos x 2 ; 

 Venezuela. 



This insect is closely allied to M. vespertinus (Fabr.)*, from the Middle and Southern 

 United States of North America and Cuba, and, judging from the specimens so named 

 in the Janson collection, was confounded with that species by Candeze, his southern 

 localities referring to M. varians. It may be known from M. vespertinus by the thorax 

 being longer in both sexes, more finely punctured, and less sinuate at the sides behind ; 

 the hind angles, moreover, are broader, with the carina finer and turning obliquely 

 inwards in front (almost parallel with the margin in M. vespertinus, M. inconstans, &c). 

 In this last-mentioned character M. varians resembles M. aversus, Lee, from which it 

 differs in its longer thorax and more attenuate elytra. M. baleni is a dark form, with 

 the elytra infuscate ; we also have it from San Geronimo and Bugaba. The elytra are 

 feebly truncate at the apex. In the two specimens from Guatemala the thorax is very 

 densely punctured. The types of Steinheil's species have been kindly communicated 

 by M. Rene Oberthiir. A specimen from Bugaba is figured. 



27. Monocrepidius tumidicollis. 



Monocrepidius tumidicollis, Cand. Monogr. Elat. ii. p. 261 \ 

 Monocrepidius sericatus, Schmidt, in litt. 



Hob. Nicaeagua, Mosquito Coast 1 . 



* The M. vespertinus of Steinheil (Col. Hefte, xiv. p. 123)= M. exclamationis, Cand, 



biol. centr.-amek., Coleopt., Vol. III. Pt. 1, May 1895. 2 Z 



