PLATYXANTHA NIGRIPENNIS. 225 



Platyxaniha (?) nigripennis , n. sp. 



Below black ; head and thorax rufous , disk of the latter 

 obscure piceous , bifoveolate ; antennae and legs fulvous ; 

 elytra black, finely and closely punctured. — Length S^/g 

 lines. 



9 (?). Below entirely fulvous. 



Head impunctate , rather deeply triangularly depressed 

 at the vertex; frontal tubercles transverse, bounded behind 

 by a deep groove ; carina acutely raised ; labrum testaceous ; 

 penultimate joint of the palpi slightly thickened , terminal 

 one short, conical; antennae slender, two thirds the 

 length of the body, fulvous, the last joint piceous; second 

 joint extremely short, third as long as the two preceeding 

 united , the following subequal ; thorax subquadrate , scar- 

 cely broader than long , the sides nearly straight at the 

 base , rounded before the middle and forming a broad 

 angle; anterior and posterior angles acute but not produ- 

 ced, surface with an oblique moderately deep depression 

 at each side, finely punctured within this depression, rest 

 of the surface impunctate, rufous, the disk suffused with 

 piceous; scutellum black; elytra slightly depressed below 

 the base, the latter somewhat raised; surface very closely 

 and finely punctured , the punctures arranged in indistinct 

 rows, the basal and tbe apical portion nearly impunctate; 

 elytral epipleurae continued to the apex; legs fulvous; ti- 

 biae unarmed ; posterior first tarsal joint as long as the two 

 following together ; claws appendiculate ; prosternum invi- 

 sible between the thighs; anterior coxal cavities closed; 9 

 thorax more transverse. 



I have for the present placed this insect in Mr. Baly's 

 genus Platyxantha on account of the closed coxal cavities, 

 unarmed tibiae, appendiculate claws and subquadrate thorax ; 

 the author founded his genus on male specimens in which 

 the posterior tibiae have curious appendages and the an- 

 tennae are difformed ; the female insects of the 3 species 

 described are at present unknown. 



Notes from tbe Leyden ÜMuseum, Vol. VI. 



