Capt. P. P. King's South American Coleoptera, 453 



Taken by Lieut. Graves at Valparaiso. 



I have adopted Erichson's names, supposing that the dilated tarsi may be 

 a sexual character which his figure does not exhibit. 



N. G. Pacuvia, Curt. 



Palpi lablales minutissimi; maxillares graciles, 4-articulati, articulo basali minuto, 2do 

 Stioque ovalibus, 4to multo crassiore, parvo, ovato-lanceolato (fig. ^). Antennae parvae 

 9-articulatae, articulus basalis crassus, clavatus, 2dus magnus globosus, tres sequentes 

 minores subglobosi, Stus subcyathiformis, 6tus cuneiformis, reliqni clavam ovalem 

 efformantes (fig. A). Caput trigono-truncatum. Clypeus reflexus, emarginatus. Thorax 

 transversus, subhexagonus, lateribus prominentibus. Scutellum elongato-trigonum. 

 Elytra thorace latiora, terque longiora, elliptica. Alas amplae. Pygidium nudum. 

 Pedes longi extensi; femora anteriora brevissima, postica omnium crassissima; tibiae 

 anteriores breves extus bispinosae, reliquae pilosae medio spinosae; tarsi longissimi, 

 subtus pubescentes, 4 anteriorum articulo 2do Stioque dilatatis, omnium articulo basali 

 2do multo breviore, terminali gracillimo ; unguibus longis gracilibus bifidis (fig, i). 



*86. Pacuvia castanea. Curt. 

 Ochrea, punctulata, capite thoraceque castaneis, elytris singulis striis 4 du- 

 plicatis (Tab. XLI. fig. 5,). 



Length 4^ lines, breadth 2^. 



Deep ochreous, shining ; palpi and antennae pale ochreous : head and thorax castaneous, the 

 former very thickly punctured, especially the clypeus; the latter punctured, thickest 

 on the anterior margin, the sides almost angulated at the middle, with a faint fovea ; 

 anterior and basal margins slightly sinuated ; scutel plain : elytra coarsely punctured, 

 leaving 4 narrow lines on each : pygidium faintly punctured, sparingly clothed with 

 ochreous hairs beneath : the legs but slightly hairy. 



Two specimens from Valparaiso. The structure of the claws is most like 

 Omatoplia, and the antennae resemble Rhizotrogus, but they are not 10- 

 jointed, and the club is very small. 



N. G. AcciA, Curt. 



Palpi nudi, labiales minutissimi, maxillares parvi, 4-articulati, articulo basali minuto, 2do 

 elongate clavato, 3tio breviori obovato, 4to omnium maximo elliptico-truncato (fig. Jc). 

 Antennae parvas, 9-articulatae, articuli 2 basales crassi, Imo pyriformi, 2do globoso- 

 pyriformi, 3tius gracilis longus, 4tus ovalis, Stus Stusque annuliformes, reliqui clavam 



