158 CEPHALODONTA. 



Var. A. Elytris apice tridentatis, fulvis ; sutura, plaga magna ante 



medium, antice tripartita apiceque, nigris, 

 Var. B. Elytris apice bidentatis, nigris, plaga humeraU Kneaque mar- 



ginali fiil^ds. 

 Long. 3-3|^ lin. 



C narro-w, elongate, siibdepressed ; elytra unicostate ; above fulvous; 

 vertex, antennae, eyes, the lateral border of the thorax and two 

 large patches on the disc, united at their base, the apex, and a 

 large common tripartite patch on the anterior half of the elytra, 

 black. Head obtusely angled between the eyes ; vertex black, a 

 small spot in its middle yellow; antennae slender, second joint one- 

 half longer than the first, intermediate joints slightly compressed, 

 but not dilated. Thorax rather broader at the base than long, 

 narrowed from the base to the apex ; sides bisinuate, obtusely 

 angled in their middle, anterior angles subacute ; above convex, 

 indistinctly impressed transversely behind the middle, narrowly 

 canaliculate down the centre of the disc, closely pimctured ; ful- 

 vous, the lateral margin and two large patches on the disc, united 

 at theii" base, black. Scutellum black. Elytra broader than the 

 base of the thorax, subparallel, indistinctly dilated behind the 

 middle ; sides narrowly margined, posterior angle produced into 

 a flattened acute tooth ; apex roimded, apical margin (Tab. IX. 

 fig. 45) dilated, produced near the suture into an acute tooth ; 

 immediately before reaching the sutural angle the margin is sud- 

 denly abbreviated, forming with the opposite elytron a deep 

 subquadrate notch, above depressed along the back, deflexed on 

 the sides ; shoulders prominent, laterally produced, their apex 

 subacute ; surface deeply punctate-striate, each elytron with an 

 elevated costa, extending from the shoulder nearly to the apex ; 

 fulvous ; a large tripartite common patch, occup^-ing nearly the 

 whole of the anterior half of their surface, and the apex, black. 

 Body beneath shining black ; a broad line in the middle of the 

 body, extending from the head to the base of the abdomen, the 

 sides of this latter, and the base of all the thighs, bright yellow ; 

 legs slender, elongate. 



Var. A. Apex of elytra tridentate, the suture also black. 



Var. B. Elytra black, a hmneral patch and the lateral border fulvous. 



Hah. Cayenne, Ega, Santarem, Upper Amazons, collected by H. "W. 



Bates, Esq. 



British Museum, and collections of W. "W. Saunders, Esq., E. Shep- 

 pard, Esq., and J. S. Baly. 



46. Cephalodonta apicalis, n. sp. 



C. elongata, subdepressa, nigra ; facie, antennainim apice, thora- 

 cisque vittis duabus flavis ; elytris unicostatis, angulo postico 

 dente acuto armatis, apice ante suturam in laminam obtusam 



