( 280 ) 



Autennii of <S somewhat longer than the body, segment 8 slightly ililiUi'd 

 towards apex, fonr times as long as apically broad, angles not produced ; in 

 both sexes 9 one-fonrth longer than broad, 11 almost as broad as long. Prothorax 

 strongly conical, dorsal carina slightly convex laterally, not quite basal mesially, 

 angle acute, lateral carina gradually fading away, extending a little beyond 

 middle. Scntellnm grey, triangular, longer than broad. Elytra longer than 

 in qracilicornis, depressed at basal margin, subbasal callosity feebly elevate, 

 alternate interspaces feebly convex. Second and third tarsal segments broad. 



llah. Espirito Santo, tijije ; Jatahy, Goyaz. 



A series. 



78. Piezocorynus basalis spec. nov. 



cJ. Black-brown, sparsely pubescent grey above, more densely below : some 

 dots on ujiperside grey. Antenna rufons, segments 1, '1, '.) and 10 brownish, 

 apical edge of pronotum and base of elytra as far as snbbasal callosity pale 

 rufous, an antemedian lateral dot on elytrum also rnfons ; apex of femora, a 

 broad subbasal and a narrow apical ring on tibiae, and the first and last tarsal 

 segments pale rufous. 



Antenna {S) hardly reaching to basal fourth of elytrum, segment :i longer 

 than -t, 8 widened, short, little longer than broad, 9 triangular, truncate, one- 

 fonrth longer than broad, ]<• nearly twice as broad as long, triangular, being 

 strongly narrowed basad, 11 luteuus, subcircular, being a little longer than 

 broad. Prothorax conical, with slightly rounded sides, evenly convex above; 

 carina subbasal, straight, with rounded angles, laterally not reaching middle. 

 Scutellnm grey, like a pronotal spot in front of it. Elytra evenly convex, 

 interspaces not elevate, third and ninth with some grey sjiots. Pygidinm 

 rounded, rufescent. 

 Length, 4 mm. 



Hab. Cochabamba, rJolivia (Germain). 

 1 (?. 



Key to the South and Central American species of Piezocorynus : 

 a. Carina antebasal, biconvex, interspaces 



of elytrum flat .... P. tristis (1855) Jekel. 



Like trisfis, jironotum with two abbre- 

 viated velvety bands . . . . P. i/v;t/is spec. nov. 

 Carina subbasal ; or, if far from base, 

 alternate interspaces of elytrum 

 elevate ...... b. 



b. Club of antenna loose, segment 10 



triangular. ..... c 



Club of antenna compact, segment 10 



transverse ..... f- 



c. Alternate interspaces of elytra convex, 



tesselated with ochraceons and black. 



Dorsal carina strongly convex . . /'. ^m^Y/coraiS (1855) Jekel. 

 Base of elytra of prothorax pale rnfons; 



dorsal carina of prothorax straight . P. basalis spec. nov. 

 Elytra with ochraceons clay sutural 



patch ...... d- . 



