NEW BARK BEETLES BLACKMAN 357 



STENOCLYPTUS RHOIS, new species 



Plate 29, Figures 9, 10 



Female. — Dark piceous, nearly black; 1.39 mm. long, 2.50 times as 

 long as wide. 



Frons convex above, flattened between eyes, surface shining, finely, 

 rather closely punctured, with moderately long, conspicuous, cinereous 

 hairs, directed dorsad. Eye short ovate, with inner line entire ; facets 

 rather fine. Antenna (pi. 29, fig. 9) with scape club shaped, its shaft 

 strongly curved and twisted, with moderately abundant, long hairs; 

 funicle 1.21 times as long as either scape or club, with six segments, 

 pedicel more than one-third of entire length, distal segments not 

 greatly widened ; club 1.7 times as long as wide, sutures weakly arcu- 

 ate, indicated by strong setal rows and annulations, with distinct 

 notches at sides. 



Pronotum almost exactly as wide as long, widest on posterior half, 

 posterior outline weakly arcuate, posterior angles rounded, sides 

 weakly arcuate to beyond middle, scarcely constricted in front of mid- 

 dle, moderately narrowly rounded in front, anterior margin without 

 serrations but with two submarginal asperities extending beyond 

 margin ; summit high, distinctly behind middle, lighter in color ; an- 

 terior area rather coarsely but sparsely asperate on a limited ovate 

 area, with inconspicuous hairs interspersed, sides of anterior half 

 devoid of asperities, shining, reticulate, finely, rather sparsely punc- 

 tured, with longer, slender hairs; posterior area shining, distinctly 

 reticulate, with rather large punctures, closely placed near summit, 

 but progessively sparser laterally, hairs short and inconspicuous on 

 disk, longer at sides. 



Elytra slightly wider than pronotum and 1.81 tim,es as long, 1.61 

 times as long as wide ; sides subparallel on more than anterior three- 

 fourths, very broadly rounded, subtruncate behind; surface shining, 

 indistinctly reticulate, roughly sculptured ; strial punctures moderately 

 coarse, rough, shallow, in fairly definite rows, only the first impressed 

 and it rather weakly; interspaces rugose, with fine punctures bearing 

 short, inconspicuous hairs, longer at sides. Declivity steep, suture ele- 

 vated, especially posteriorly, with a moderate sulcus at each side, 

 lateral convexities rather high ; entire declivity subshining, distinctly 

 reticulate, rugose, strial punctures smaller than on disk, interspaces 

 with a few fine hairs of moderate length. Venter of thorax and ab- 

 domen with rather long, slender hairs. 



Fore tibia (pi. 29, fig. 10) somewhat wider distally, sides sinuate, 

 mucro rather long and slender, curved, distal end diagonally truncate, 

 with two submarginal teeth. 



The male is unknown. 



