278 ACADEMY OF NATURAL SCIENCES 



6. C. LATICORNIS. — Black ; thorax with the lateral margin 

 yellow; antcniije serrate. 



Body black ; head somewhat yellowish before ; antennae a 

 little dilated and serrate on the inner side; second joint very 

 small, less than one-third the length of the third joint, which is 

 fcqual to the fuurtli : thorax a little narrower before, lateral nar- 

 row margins honey-yellow; middle of the lateral edge contracted; 

 posterior angles subacute : pectus yellowish : nails simple, pos- 

 terior pair with a slight tooth. 



Length nearly three-tenths of au inch. 



[Belongs to Polemius Lee, Proc. Acad. Nat. Sc. Phila. 5, 339; 

 Telepliorus duhius Mels. is synonymous. — Lec] 



6. C. SCITULA. — Dusky ; thorax, margin of the elytra and 

 feet yellow. 



Head black, anterior half yellowish; antenna) with [169] the 

 two basal joints beneath yellowish, second joint rather large, two- 

 thirds the length of the third joint, which is equal to the fourth : 

 thorax yellow, immaculate; anterior angles obtusely rounded, 

 posterior angles acutely rounded ; elytra dusky, with a pale yel- 

 lowish margii), the sutural margin very broad, near the scute' 

 occupying nearly half the width of the elytrum : beneath pale 

 yellowish ; postpectus and venter varied with dusky : nails armed 

 with a tooth. 



Length more than one-fifth of an inch. 



[Subsequently described by me, Agassiz, Lake Sup., 230, as 

 Telephorus nigriceps. — Leg.] 



8. C. ? BIDENTATA. — Thorax bidentate, yellow; antennae ser- 

 rate. 



Body black : antennae dilated, joints short, serrate ; second 

 joint very small, not dilated, half as long as the third, which is 

 equal to the fourth : thorax yellow ; near the posterior angle on 

 each side are two prominent, approximate, parallel teeth. 



Length more than three-twentieths of an inch. 



[Belongs to ;S'i7/.s. — Lec] 



[Vol. V. 



