TRAVAUX INDITS. 415 



tulatis, 3 et 7 apice eonjunctis, 7-9 postice dilatato-carinatis; abdo- 

 men niedio disperse puuctulato punctis leviter piliferis, segniento 

 ultiino dense puuctulato ; femoribus inermibus. Long. 3; lat. 

 1,1/2 mill. 



Var. I . Totus niger. 



Habitat in Nova-Granata, Am. austr. 



Ccnlrinus radialus. C. bifronti Fb. affinis ; ovatus, niger, uiti- 

 dus, subtus thoraee aciculato; sternoabdoniineque subtiliter punctu- 

 latis albido, mesothorace utriuque dense setulosis; rostro tenue, ni- 

 tido, longitudiualiter striato-punctulato, basi utriuque crenulato- 

 punctato; capite subopaco, antrorsum puuctulato ; oculis non promi- 

 nulis ; thoraee latitudiue brevior, antice supra leviter, subtus pro- 

 funde coustricto, truncato, basi bisinuato , me iio basi sat impresso 

 et lobato, lobo lvi, lateribus rotundato-angustatis, postice vix sinua- 

 tis, disco radiato-carinulato, cariuis lateralibus iuterruptis; lvibus, 

 piliferis; elylris obeouicis, lateribus parum rotundatis, nitidis, pro- 

 funde striatis, striis punctatis, sria margiualis valdc impressa, in- 

 terstitiis deplanatis, puuctisalbido-setiferis iu srie disposais, 1-4 in- 

 tegris; femoribus iuermibus. Long. 2,1/2; lat. 1,1/4 mill. 



Mas. Prosternum subtus acute-an<julatum. 

 Habitat in Nova-Granata, Am. austr. 



Centrinus Brannanii. Brevis, politus, niger, thoraee supra san- 

 guineo, elytris sulphureis;; roslro poljto, ad basin utriuque profunde 

 dcplanato; capite convexo, postice punctato ; oculis non prominulis; 

 thoraee triangulari, antice nigro, truncato, coustricto postieeque lo- 

 bato, basi trisinuato, angulis obtusis; vis visibile disperse punctato; 

 elylris marginibus angustis, interstitio primo toto basique late ni- 

 gris, augulis humeralibus valde prominulis, lateribus ad posticem 

 profunde angustatis, postice subtruncatis, stria suturali profunde 

 reliquis obsolte striato-puuctulatis, interstitiis vix visibile sparsim 

 puuctulatis; mesosteruum sparsim punctatum, segmentis abdomi- 

 nalibus tribus ultimis postice, ad latera crebre punctatis; antennis 

 obscure sanguineis. Long. 4,1/2, 5,1/4; lat. 2,3/4, 3,1/2 mill. 



Mas. Prosternum bicornutum, cornibus tenuibus, sub- 

 incurvis, deflexis. 



Habitat in Venezuela. 



Denominatus in memoriam ill. ab Hon.Sam. Brannan, 

 qui multa insecta nobis communicavit. 





