TRIBE V. CRYPTURGINJ. 653 



W). Front without posterior impression: pronotum with regular punc- 

 tures. 



(L Length 5 8 mm.; black; epistomal process moderately broad, 

 with apical angles usually tuberculate; pronotal punctures very 

 coarse, regular, moderately dense, scarcely decreasing in size 

 toward base; elytra with long hairs toward base. 



1057. TEREBRANS. 



.id. Length 5.7 9 mm.; reddish, never black; epistomal process 

 broad, with apical angles obtuse, never tuberculate; pronotum 

 with punctures smaller and denser toward base; elytra with 

 long hairs toward base. 1058. VALENS. 



1053 (9185). DENDROCTONUS FRONTALIS Zimm., 1868, 149. 



Light brown to nearly black; reddish-brown in the type. Elytral 

 declivity with long hairs, striae distinctly punctured, intervals with mod- 

 erately coarse rugosities, not very densely placed. Pronotum with a few 

 long hairs in front at sides. Front with a moderately prominent tubercle 

 each side of a distinct median groove. Male, pronotum without transverse 

 elevation. Female, pronotum with transverse ridge across the anterior 

 area. Length 2.5 4 mm. 



Occurs from Pennsylvania and West Virginia to Florida, 

 Oklahoma and Texas. Host trees, numerous species of Pinus and 

 Pice a. 



1054 (9183). DENDRocTOxrs SIMPLEX Lee., 1868, 173. 



Reddish to reddish-brown, with head and thoracic segments from 

 light to dark brown and nearly black. The size, and the coarser and 

 deeper punctures of pronotum are distinctive characters. Elytral de- 

 clivity with stria? deeply impressed, rugosities moderately coarse, finer on 

 lateral areas. Pronotum with distinctly coarse and fine punctures in- 

 termixed, moderately long reclining hairs on lateral area. Epistomal 

 process narrow, flat, sides nearly parallel, apex not extending beyond the 

 anterior frontal margin. Male elytral declivity shining, intervals convex 

 and smooth. Female elytral declivity with intervals more rugose and 

 stria 3 more distinctly impressed. Length 3.5 5 mm. 



Occurs in Maine, Michigan, West Virginia, Uugava Bay, Can- 

 ada, and New Hampshire. Host tree, Larix Jaricina. 



1055 (- -). DENDROCTOWUS PICEAPERDA Hcpk., 1901-b, 16. 



Elytra red or dark reddish-brown; thorax, head and abdomen black. 

 Head with front convex and with faint median and posterior impression 

 and anterior elevated line. Elytral intervals slightly convex, rugosities 

 acute, rather closely placed, irregular. Punctures of pronotum distinctly 

 irregular, epistomal process broad, concave, with the lateral section 

 oblique. Male, striae of elytral declivity not impressed, intervals finely 

 punctured with very small granules toward apex. Female, stria? of de- 

 clivity very faintly impressed, intervals with approximate rows of fine 

 granules. Length 4.7 6 mm. 



