NEW AMEKICAN SCOLYTOID BEETLES — BLACKMAN 383 



exposing last tergite ; surface shining, finely rugiilose, reticulate, strial 

 punctures small, shallow, in definite rows, but striae except first two 

 not impressed; interspaces flat, very finely punctured, with no hairs 

 visible ; declivity moderately sloping, unmodified. 



The male is unknown. 



Type locality. — Paraiso, Panama Canal Zone. 



Host. — Unknown. 



Type maz't-r/a?.— Holotype and 3 paratypes, U.S.N.M. No. 56560. 



The type series was collected by E. A. Schwarz, January 26, 1911. 



Genus PRIONOSCELES Blandford 



PRIONOSCELES INGAE, new species 



Female. — Black, shining, with abundant cinereous hairs on elytra; 

 1.97 mm. long, 1.99 times as long as wide. 



Frons convex above, surface feebly shining, reticulate, strongly 

 punctured, with median line indefinitely elevated ; below subsemicir- 

 cularly flattened, with somewhat smaller, less distinct punctures and 

 no sign of a median elevation ; epistoma somewhat elevated, with con- 

 spicuous tuft of hairs from epistomal margin; frontal hairs sparse 

 and inconspicuous. Eye narrow ovate, inner line entire, facets small. 

 Antenna yellowish" red with club inf umated with darker coloration ; 

 scape club-shaped, funicle shorter than scape, 6-segmented, with distal 

 segments much wider ; club oval, with one nearly complete septum. 



Pronotum exactly as long as wide, posterior outline bisinuate, dis- 

 tinctly margined throughout, with margin continuing at sides well 

 past middle, posterior lateral angles rounded, sides subparallel and 

 nearly straight (very feebly arcuate) to well past middle, very broadly 

 rounded in front; surface shining; anterior third with low, subcon- 

 centric asperities, with a few short, fine hairs ; posterior portion sub- 

 glabrous, finely, moderately sparsely punctured, with interstices retic- 

 ulate, median line impunctate on basal third. 



Elytra notably wider than pronotum and 1.31 times as long, 1.18 

 times as long as wide ; bases slightly sinuate, margined ; sides nearly 

 straight and subparallel on anterior two-thirds, very broadly rounded 

 behind ; dorsal contour arcuate from base, much more strongly behind 

 middle; surface shining, piceous-black; striae weakly, first and sec- 

 ond more strongly impressed, punctures very close, of moderate size; 

 interspaces wide, nearly flat, strongly uniseriately punctured, the 

 punctures being similar in size to those of striae but not so closely 

 placed, surface more roughened and subgranulate behind middle ; de- 

 clivity strongly convex; vestiture of erect, yellow-cinereous bristlelike 

 hairs, moderately abundant throughout but especially so on declivity. 



Male. — Similar to female in general habitus, with frons concave, 



