Capt. P. P. King's South American Coleoptera. 451 



82. Leucothyreus ? antennatus, Curt. 



Antennariim clava longissima (fig. «?) : ochreus, capite castaneo (Tab. XLI. 

 fig. 3.). 



Length 6 lines, breadth 3. 



Ochreous, shining : head castaneous ; club of antennae long and slender ; clypeus thickly 

 punctured ; head more sparingly : thorax transverse, thickly and minutely punctured, 

 as well as the scutel : elytra irregularly but distinctly punctured, with three smooth 

 ridges, formed by double lines of punctures : anterior tibiae tridentate, the others spiny ; 

 4 anterior tarsi dilated, especially the 2nd joint of the anterior pair (fig. «?), the others 

 being obovate ; underside very hairy. 



The only example I have seen is from Monte Video. It looks exactly like a 

 diminutive specimen of Geniates barbatus, but it will be seen by the shape 

 of the tarsi that it forms another link between L. spurius and the genuine 

 Leucothyrei. 



*83. Leucothyreus Kirbyanus, MacL. Horce Entum. vol. i. p. 146. pi. 3. f. 31, 



trophi. 

 From Rio Janeiro. 



Serioides, Gudr. Camptorhina, Kirby. 



Antennae 9-articulatae, articulus basalis crassus, pyriformis, 2dus obovatus, 3tius longior 

 gracilior, 4tus gracilis baud 2do longior, reliqui clavam gracilem tenuiter 5-lamellatam 

 efFormantes. Clypeus rotundatus. Labrum emarginatum ; palpi maxillares longi gra- 

 ciles 4?-articulati, articulo basali minuto, tribus sequentibus elongatis subaequalibus, 

 terminali truncate ; palpi labiales 3-articulati, articulo 3tio fusiformi. Caput semiorbi- 

 culare. Thorax transversus, basi supra scutellum elongatum emarginatus. Elytra 

 longissima. Pedes longi graciles ; tibise anticae breves, latae, extus tridentatae, reliquae 

 spinosEC ; tarsi similes, longissimi, graciles, setosi, articulis subaequalibus ; ungues 

 omnes simplices, longi, graciles. 



84. Serioides atricapilla, Kirby. 

 Elongata, violaceo-brunnea, punctulata, elytris rugosis lineatis (Tab. XLI. 



fig. 4.). 

 Ser. Reichii, Guer. Rev. Zool. 1839, p. 301 ? 

 Length 6 lines, breadth 3. 



Deep shining brown with a violet tint : antennae ochreous, hairy at the base ; club hairy and 



