NEW AMERICAN SCOLYTOID BEETLES — BLACKMAN 397 



and elytral asperities coarser and yellow scales more numerous than 

 in female ; elytral interspaces with larger asperities than in female. 



Type locality. — Forest Grove, Oreg. 



Additional localities.— Cow al\\s^ Portland, St. Helens, Oreg. 



Host. — Fraxinus oregorm Nuttall. 



Type material. — Holotype, allotype, and 25 paratypes, U.S.N.M. No. 

 50574. 



The holotype, allotype, and 5 paratypes were taken from Oregon 

 ash at Forest Grove, Oreg., by M. C. Lane, January 8, 1919 ; 11 para- 

 types, Corvallis, Oreg., 1931; 7 paratypes taken at Portland, Oreg.. 

 August 31, 1926, by C. E. Wood; 2 paratypes, St. Helens, Oreg., from 

 FraxiTVUs, by A. D. Hopkins. 



Genus PHLOEOSINUS Chapuis 

 PHLOEOSINUS BLACKWELDERI, new species 



Male. — Black, with elytra reddish brown ; 2.97 mm. long, 2.10 times 

 as long as wide ; closely allied to nitidus Swaine and cupressi Hopkins. 



Frons rather wide between eyes, frontal rectangle about 0.63 as long 

 as wide; epistomal lobe very short; surface piceous, finely, densely 

 granulate-punctate at sides, deeply, closely punctate above (more so 

 than in nitidus)., median area shining, concave between eyes (less 

 deeply than in 7iitid'us), not extending to epistoma, which is very 

 finely granulate-punctate; median carina short and not conspicuous; 

 hairs short. Eye more than 3 times as long as wide, more than half 

 divided by an emargination. Antenna with club nearly twice as long 

 as wide, sutures oblique. 



Pronotum 1.10 times as wide as long, widest at base; sides regularly, 

 convergently arcuate, without constriction, broadly rounded in front ; 

 surface brightly shining, piceous-black, closely, deeply punctured on 

 disk, more finely and densely near anterior margin, sides subgranulate- 

 ly punctured; lateral calli distinct; hairs fine and short (shorter than 

 in nitidus) over most of pronotum, with longer hairs anterolaterad 

 of calli. 



Eh'tra wider than pronotum and 1.63 times as long, 1.34 times as 

 long as wide, widest behind middle ; sides slightly sinuate, subparallel, 

 very broadly rounded behind ; surface shining, striae sinuate, deeply 

 impressed, punctures large, close, shallow ; interspaces on disk rugose- 

 granulate, convex, with very fine punctures, much wider than striae 

 near base, about equal in width to striae on most of disk, granules con- 

 fused anteriorly, becoming uniseriate posteriorly; sides with striae 

 and interspaces about equally wide, interspaces less strongly rugose 

 and granulate ; hairs short and fine, not abundant. Declivity abrupt, 

 of the nitidus-cupressi type, with coarse, black serrations ; first inter- 



