OF AMERICA NORTH OF MEXICO. 325 



1. G, CYANiPENNis. — Niger brevissime pubescens, capite punctato, thorace lateribus subangulato, convexo, 

 obsolete punctato, elytris glabris, viridicyaneis, nitidissimis, parce punctatis, punctis postice fere 

 obsoletis, antennis pedibusque flavis. Long. -35. — '4.6. 



Leptura cyanipennis, Say. J. Ac. 3, 423. 



Pachyta cyanipennis, Hald. 60. 



P. Leonardii, J Hald. 60. 



P. Servillei, Serv. Am. Ent. 4, 214. 



P. lone, Newman Entom. 



Massachusetts to Carolina. • 



CENTRODERA. 



Oculi magni globosi, antice emarginati, (minus profunde in S .) 

 Mesosternum planum subtriangulare, apice truncatum. 

 Palpi parum dilatati ( $ ) vel dilatati ( % ) apice oblique truncati. 

 Antennae ante oculares, elongatse, tenues, articulo 4'" paulo breviore. 

 Tibiae apice recte truncatae. 



Habitus Rhamnusii, at capitis forma oculisque magnis differt. Corpus lineare, 

 cylindricum. Caput mox pone oculos paulo angustatum, ore non attenuato. Mentum 

 transversum, antice non angustatum. Thorax elongatus, cylindricus, utrinque 

 constrictus, lateribus acute spinosus. 



1. C. DEcoLORATA. — Rufo-testacea, capite punctato, canaliculato, thorace parce punctato, disco utrinque 



gibboso, medio canaliculato, elytris valde punctatis, apice subtruncatis. Long. l-O. 

 Rhamnusium ? decoloratum '. Harris Ins. 

 Toxotus ruhidus, Dej. Cat. 

 T. rubidus, Hald. 58. 



Niagara and Massachusetts. The male has the palpi moderately dilated, the 

 antennae almost as long as the body, and the unguicular joint of the anterior tarsi 

 depressed and dilated. 



2. C. picTA. — Fusca, pubescens, capite thoraceque confertissime subtiliter punctatis, subcanaliculatis elytris 



fere glabris, grossius punctatis, testaceis lineis pluribus confluentibus fuscis. Long. '55. 

 Toxotus pidus, Hald. 58. 



Pennsylvania, Rev. D. Ziegler: South Carolina. The male has the palpi very 

 much dilated, the antennae longer than the body, and the last joint of the anterior 

 tarsi depressed and dilated. 



EVODINUS. 



Oculi oblongi, intus parum emarginati. 



Mesosternum planum, parallelum, truncatum, coxis magnis. 



Palpi dilatati, oblique truncati. 



Tibiae apice recte truncatae. 



