NEW AMERICAX SCOLYTOID BEETLES — BLACKMAN 387 



as striae, nearly flat, lunately asperate anteriorly, becoming uniseri- 

 ately granulate behind ; vestiture on anterior half scanty, sparse and 

 fine, with coarser, longer, yellow setae on posterior half and on sides, 

 becoming more conspicuous on declivity, 



Male. — Similar to female in general habitus; frons (fig. 29) con- 

 cavely impressed, below with a well developed, erect epistomal process 

 arising just above the epistomal margin and having the free end 

 squarely truncate, the sides feebly converging; antennal scape with 

 dense fringe of long yellowish hairs ; pronotum with anterior margin 

 equally serrate at center and sides ; elytral setae more conspicuous. 



Type locality. — El Quemado, Argentina. 



Additional locality. — Salta, Argentina. 



Host. — Unknown. 



7'ype material. — Holotype, allotype, and 41 paratypes, U. S. N. M. 

 No. 56564. 



The type series was collected by G. L, Harrington in 1927-28 in 

 northern Argentina, in the provinces of Jujuy and Salta. 



PHLOEOTRIBUS BOLIVIAE, new species 



Plate 17, Figxjres 31, 32 



Female. — Head piceous, pronotum very dark reddish brown, elytra 

 reddish brown ; 2.17 mm. long, 1.92 times as long as wide. 



Frons (fig. 32) convex above, frontal rectangle 0.94 as long as 

 wide, transversely elevated between bases of antennae, surface sub- 

 shining, reticulate, sparsely, shallowly punctate, with a short, fine, 

 median sulcus just above transverse elevation; below transversely 

 rather broadly impressed on epistoma, with punctures rougher, 

 coarser, and deeper than above ; epistomal margin thickened, liplike ; 

 piceous above, reddish brown in epistomal impression. Antenna aris- 

 ing from side of frons one-third of distance between eye and median 

 lines, scape and funicle reddish brown, club piceous, about as long as 

 scape. Eye elongate elliptical, not emarginate, facets moderate. 



Pronotum 1.25 times as wide as long, widest near base, posterior 

 outline extended in median area, posterior angles rounded, sides 

 strongly arcuate, slightly constricted behind the very broadly rounded 

 front margin, which is without serrations in median area but with 

 small serrations at each side ; surface shining, rugose-asperate in front 

 and at sides, with sparse, semierect hairs, rugose-granulate and shal- 

 lowly punctate in posterior median portion with fine, short hairs. 



Elytra wider than pronotum and 1.80 times as long, 1.31 times as 

 long as wide; anterior margins arcuate, elevated and crenulate, sides 

 nearly straight and feebly diverging, moderately rounded behind, 



