186 ALLOCHROMA. 



4. Allochroma fasciatum. (TAB. VII. fig. 8.) B.M. 



A. oblongo-ovatum, robustum, depressum, punctatum, rufum ; capite 

 ad basin T foveolato ; thorace transverso, ad latera marginato ; 

 elytris sat latis, punctatis, rufis, ad humeros et pone medium 

 nigris (i. e. fascia transversa tenui ad medium, sutura, basique 

 rufis) ; antennis robustis,filiformibus,fuscis ; pedibus rufis, fusco 

 suffusis. 



Long. corp. 2f lin., lat. 1-J- lin. 



Oblong- ovate, robust, depressed, punctate, impubescent, of a dark 

 rufous colour. Head short, hardly produced ; above the labrum is a 

 transverse triangular depression ; above the base of the antennae and 

 between the eyes is a longitudinal fovea, which is terminated at its 

 upper extremity by another, transverse (extending between the inner 

 margins of the eyes), these two together forming the character of the 

 letter T ; eyes tolerably prominent, situated near the base of the 

 head ; the surface (when viewed under a high power) darkly rufous. 

 Thorax considerably broader than the head, transverse ; the anterior 

 angles depressed and prominent; the sides broadly marginate; at 

 the base (when viewed laterally) is an obsolete transverse depres- 

 sion ; the surface, under a high power, is minutely punctured, of a 

 dark rufous colour, suffused with fuscous. Scutellum triangular, ru- 

 fous. Elytra broader than the thorax, subdepressed, with punctures 

 arranged in the form of striae ; these punctures become obsolete as 

 they approach the apex : black ; a transverse medial band, and also 

 the apex being rufous ; the suture also is narrowly rufous. Antennae 

 robust, filiform, rufo-fuscous. Legs rufous ; the anterior tibiae and 

 femora being suffused on their upper surface with fuscous. 



This species is subject to slight variation as to colour, and also the 

 breadth of the transverse marking on the elytra. 



Mexico, and the northern portion of the continent of South America. 

 In the cabinet of the British Museum, and in most collections. 



5. Allochroma piceum. 



A. ovale, sat robustum, subdepressum, nigro-piceum, nitidum ; capite 

 brevi, haud antice elongato, inter oculos foveolato, punctulato, 

 fusco -castaneo ; thorace transverso, rectangulari, angulis subacutis, 

 post medium transverse depresso, punctato ; elytris punctis magnis 

 velut in striis coordinatis (ad marginem striatis), ante medium 

 transverse et oblique depressis, apud humeros, marginem, et apicem 

 parum castaneis ; antennis robustis, piceis, art. 10 WO et \\ mo fiiscis ; 

 pedibus piceis. 



Long. corp. 2| lin., lat. \\ lin. 



