THE GENUS PISSODES. 35 



Subdivision B. 



Prouotum with basal angles Bubrectangular; beak rather 8tout, moderately long. 



Section a3, pages 35, 57. 

 Pronotum with basal angles rounded; beak slender, moderately to very long. 



Section a4, pages 35, 58. 

 Section aS. 



Length 5.5 to 7.1 mm.; dark brown; pronotal punctures not distinctly separated; 

 elytra with faint anterior spot toward the middle and indistinct spots of reddish 

 brown and white scales behind the middle, interspaces with many minute white 

 spots toward sides and on declivity. Hoquiam, Wash., in thick bark on trunks 

 of dying trees and stumps of Picea sitchensis. Species index, ^ 64-9 70. 



17. costatus Mannerheim, page 57. 



Section a4. 



Pronotal punctures distinctly separated ; punctures of elytral striae small to coarse. 



Subsection b5, pages 35, 59. 



Pronotal punctures irregular, not distinctly separated; punctures of elytral striae very 



coarse and irregular Subsection b6, pages 36, 62. 



Subsection b5. 



Pronotum not distinctly narrower than elytra ' Series c5, page 35. 



Pronotum distinctly narrower than elytra Series c6, page 36. 



Series c5. 



Pronotum short, stout, sides strongly rounded and constricted toward the anterior 

 margin ; elytral interspaces strongly elevated with rather coarse rugosities. 



Subseries d3, page 35. 



Pronotum elongate, sides rounded, but not deeply constricted toward head; elytral 

 interspaces with fine rugosities Subseries d4, page 35. 



Subseries dS. 



Length 4.2 to 5.2 mm.; dark brown; elytra without anterior spot but with broad 

 posterior one, interspaces 3 and 5 strongly elevated, convex, rugose; punctures 

 of striae small. New Hampshire, in thin bark on dying Picea mariana and Picea 

 rubens. Species index, <J77-981 18. fiskei n. sp., page 59. 



Subseries d4. 



Length 4.4 to 5.6 mm.; dark brown; pronotum short, broad; elytra with small obscure 

 anterior spots and distinct posterior ones situated toward the middle, interspaces 

 3 and 5 flattened, scarcely elevated, rugosities fine; punctures of striae coarse. 

 Webster, N. H., in Picea mariana, bark of small tree. Species index, ^68-984. 



19. nigrae n. sp., page 59. 



Length 4.2 to 6.1 mm.; light brown; pronotum elongate, punctures coarse, irregular; 

 elytra with small anterior spots and more di-stinct posterior ones just behind 

 the middle, interspaces 3 and 5 slightly elevated and flattened; punctures of 

 striae moderately coarse. Mountains of West Virginia, in Picea rubens, thick 

 bark on logs. Species index, <J 74- 9 87 20. puncticollis n. sp., page 60. 



Length 4 . 1 mm . ; dark brown ; pronotum elongate, punctures moderately coarse, regular; 

 elytra without anterior spots and with very small posterior ones each side behind 

 the middle, interspace 3 distinctly broader, elevated ; striae coarser toward the base. 

 Wallowa, Oregon, in Pinus murrayana; reared from bark. Species index, 9'78- 



21. //m/rayanatu. sp., page^. 



