194 CERICHKESTUS . 



medially. Antennae robust, filiform, with a tendency to inerassation 

 towards the apex, fuscous. Legs flavous, with the anterior tarsi and 

 upper part of the anterior tibiae fuscous. 

 Brazil. 



15. Allochroma generosum. (TAB. VIII. fig. 3.) B.M. 



A. oblongo-ovale, subcylindricum, cyaneum, nitidum ; capite et 

 thorace rufis, valde punctatis ; capite brevi, subdepresso, antice 

 paulum producto ; thorace transverse, angulis prominulis, 'lateri- 

 bus marginatis, ad medium sensim anguloso-undulatis, bituber- 

 culato ; elytris parallelis, punctis velut in striis ordinatis ; an- 

 tennis brevibus, fuscis ; pedibus nigris. 



Long. corp. 3 lin., lat. 1J lin. 



Oblong-ovate, somewhat cylindrical, of a dark blue colour, shining ; 

 head and thorax strongly punctate, fulvo-rufous. Head short, trans- 

 verse, depressed, hardly elongated in front ; eyes distant, slightly pro- 

 minent, extending laterally as far as the line of the thorax at the an- 

 terior angles ; between the eyes (most apparent when viewed in front) 

 is a transverse depression, which is connected with the insertion of 

 the antennae by a short medial horizontal fovea. Thorax slightly 

 transverse (almost quadrate); the sides marginate, slightly dilated 

 at the middle ; the anterior angles distinct and subacute. Scutellum 

 triangular, impunctate, fulvous. .Elytra somewhat robust ; the sides 

 are parallel, with broad and shallow punctures arranged as strias ; 

 an appearance of prominence is given to the anterior angles by a 

 shallow transverse depression which extends obliquely in the direc- 

 tion of the shoulders ; the colour is cyaneous, shining. Antennae 

 short, filiform, with a slight tendency to dilatation in the fifth to the 

 eleventh joints, all of which are short, and of similar form and equal 

 size ; the first joint is narrow at the base, but dilated at the apex, 

 of the length of the fourth ; the second short, ovate ; the third 

 attenuated, longer than the first or the fourth ; black. Legs rufo- 

 fuscous. 



Columbia. A single example is in the collection of the British 

 Museum. 



Genus 33. CERICHRESTUS*. 



PALPI MAXILLAEES globosi, art. 3 tio plus duplo 2 nd0 latiori, quadrato. 

 PALPI LABIALES elongati. 



ANTENNA robustce, ad apicem attenuatce, ad medium subincrassatce. 

 CAPUT breve, verticaU. 



* ice/oaf, (cornu), frons, facies ; xpjjffroe, eximius. 



