262 Mr. J. S. Baiy on new Genera and Species of Hispidse. 



to draw up at some future period, either in the Rev. H. Clark's 

 proposed catalogue or elsewhere, a synopsis of the genera, and 

 thus complete, although imperfectly, the monographic arrange- 

 ment of this interesting group. 



Genus Hispoleptis. 



Corpus elongatum, parallelum, modice convexum, dorso sub- 

 depressum. Caput porrectum, facie brevi transversa, inter antenna- 

 rum insertionem crebre elevata instructum ; antennis modice robustis, 

 corporis dimidio sequalibus, filiformibus, ad apicem attenuatis, arti- 

 culis cylindricis, 1™" subgloboso, pauUo incrassato, 2**" sat brevi, vix 

 incrassato, 3*'° elongate, 4'" illo fere dimidio breviore, cseteris ad 9°""" 

 longitudine perparum decrescentibus, 10-1 1""" fere sequalibus, utro- 

 que 9"° paullo longiore ; mento subhastato ; oculis vix prominulis, 

 elongatis, postice leviter sinuatis. Thorax elongatulus, apice trun- 

 cate, basi utrinque sinuata, lateribus fere rectis, a basi ad apicem 

 angustatus, angulis anticis vix productis, acutis, dorso transversim 

 convexo. Scutellum latum, pentagonum. Elytra thorace vix la- 

 tiora, lateribus parallelis, muticis, apice conjunctim rotundata, ser- 

 rata ; supra modice convexa, dorso subdeplanata, punctato-striata. 

 Pedes validi, mediocres, simplices, tarsorum anticorum articulo ba- 

 sali sequentibus latiore ; unguiculis distantibus. 



Type, Hispoleptis (Promecotheca) diluta, Guer. Amazons, 

 Cayenne. 



Genus Acanthodes. 



Corpus elongatum aut subelongatum, dorso depressum, postice 

 paullo dilatatum. Caput porrectum, inter oculos productum ; an- 

 tennis rigidis, apice acutis, articulis duobus basalibus brevibus, fere 

 sequalibus, iix incrassatis, 3"°- 1 1™"™ pier urn que inter se coalescen- 

 tibus, articulationibus ssepe obsoletis, 3<'"-6°°'" rarius distinctis mo- 

 niliformibus ; mento elongate. Thorax basi transversus, medio de- 

 pressus, ad apicem angustatus, subcylindricus, margine basali utrin- 

 que profunde excavato. Scutellum transversum, apice obtusum. 

 Elytra thorace latiora, subparallela, apicem versus paullo ampliata, 

 apice truncata, angule postico spina valida acuta armato; dorso 

 costata, interspatiis profunde bifariam punctatis. Pedes validi ; 

 unguiculis contiguis. 



Type, Acanthodes generosa. Amazons. 



This singular genus is remarkable for the small number of 

 joints in its antennae. It ought to stand near Odontota : in some 

 species no less than nine joints coalesce. 



1. Antennae with all their joints, from the third inclusive, coalescent; 

 the sutural lines between them almost or entirely obsolete. 



Acanthodes generosa, n. sp. 

 A. elongata, subdepressa, rufa, oculis antennisque nigris ; elytris 

 costatis, utroque sutura antice, margine exteriore macula infra 



