SAGRIRA. 221 



Having described the British American insects, as far as collected by Dr. Rich- 

 ardson, Dr. Bigsby, &c. belonging to the second tribe of Latreille's Cyclica, to 

 which we gained an approach from the Rhynchophora, we must now retrace our 

 steps, and going back to the Lepturidce, enter from them to his Eupoda, and so 

 proceed to his first tribe of Cyclica. 



ii. Eutoda. Lat. 



Family SAGRIDiE. Sagridans. 



CX VIII. Genus ORSODACNA. Lat. 



(297) 1. * Orsodacna tibialis. Yellow-shanked Orsodacna. 



O. (tibialis J picea, subtus piloso-incana, supra punctatissima, femor'ibvs basi tibiisque flavis. 



Yellow-shanked Orsodacna, piceous, underneath covered with hoary pile, thighs at the base and tibiae yellow. 



Length of the body 2| lines. 



A single specimen taken in the Journey from New York to Cumberland-house. 



DESCRIPTION. 



Body piceous; underneath hoary with decumbent hairs; above naked, glossy, thickly punctured. 

 Palpi and two last joints of the antennae obscurely rufous ; front between the eyes with a transverse 

 levigated elevation : prothorax longer than wide, constricted at the base : lateral margin and epipleurse 

 or side-covers of the elytra, except at the base, yellowish-red : thighs, at the base, and tibia reddish- 

 yellow, the four posterior tibia; darker at the apex. 



(298) 2. * Orsodacna Childreni. Children's Orsodacna. 



O. ( Childreni J flavescens, occipite poslpectore abdomineque, nigris ,• elytris pallidis sutura, vitta later ali, fascia angulata basique 



nigris. ' 



Children's Orsodacna, yellowish, occiput, postpectus, and abdomen black ; elytra pallid with the suture, a marginal stripe, 



an angular band, and the base black. 



PLATE VII, FIG. 6. 



Length of the body 2f lines. 



A single specimen taken in Lat. 54°. 



