OF rHlLADELPHIA. 833 



the surface from base to tip ; they are obsolete on the first, 

 second, and terminal joints. The species is rare. 



[Belongs to Sderocerus, and is the male of tS. linearis Harris, 

 Trans. Hartford Soe. Nat. Hist. 85.— Leg.] 



2. S. QUADRIGEMINATUS. — Pale brown ; elytra each with two 

 geminate spots ; basal ones equal. 



Body entirely pale yellowish-brown : antennae hardly more ob- 

 viously hairy on the basal joints than on the others : thorax with 

 two black tubercles above, rather before the middle, placed trans- 

 versely, and a short spine each side on the middle of the length 

 of the thorax : elytra rather paler than the thorax ; each with 

 two double, somewhat elevated bright yellow, abbreviated very 

 short lines ; the two members of the basal spot equal, the othe 

 spot is placed on the middle, and its inner member is shorteV 

 than^the exterior one ; tip two-spined, the exterior spine longest . 

 intermediate and posterior thighs two-spined at tip, the inner 

 spine rather longest. [2763 



Length nine-tenths of an inch. 



This insect is not uncommon. It is related to *S'. 4r-maculahii 

 Fabr., >S^. maculosus Fabr., S. didymus Oliv., all of South 

 America, and S. stigma Oliv., of Cuba. It differs from the first, 

 to which it is more closely related than to either, by the equality 

 of the two members of the basal double spot of the elytra, and 

 by having only two tubercles on the back of the thorax ; from 

 the maculosus it may be distinguished by its greater size and 

 simple pale color ; from didymus by its smaller size, and not hav- 

 the third and fourth joints of the antennae more hairy than the 

 other joints ; from stigma by having the basal spot of the elytra 

 double. 



[Belongs to Eburia. — Ldo.] 



CLYTUS Fabr. 



1. C. coNFUSus. — Black, with spots of yellowish- white ; feet 

 rufous, tarsi and knees black. 



Head covered with prostrate, short yellowish hair, excepting a 

 longitudinal line on the vertex : antennae two-thirds the length 

 of the body, black : thorax covered with hair, excepting a dilated 

 dorsal vitta, and a naiTow obsolete longitudinal line e^ch side : 

 1826.] 



