140 



THE SCOLYTID BEETLES. 



Distribution (fig. Sb) .— Michigan: White Fish Point and Grand 

 Island. 



Host iree.—Pinus strobus. 



Identified specimens.— \].^.1^M.,B.. & S., 1 specimen; Hopk. U. S., 

 14 specimens of adnlts, collected by W. F. Fiske at Grand Island, Mich.' 



Bibliography. 



Eylurgus rufipennis Kirby, 1837, p. 195, No. 261, original description. Packard, 

 1887, p. 176, note. Hopkins, 1899c, p. 343 (in part?). Schwarz, 1900a, p. 53?' 

 author's copy, p. 185 (in part?). Hopkins, 1901a, p. 16, reference to distribution,' 

 characters, first time recognized since description. 



Fig. 85.— Dendroctonus rufipennis: Distribution map. (Original.) 

 19. Dendroctonus murrayanae n. sp. 



Adult.— Tjipe of species, -female: Length, 6.9 mm; elytra red; 

 thorax,head, and abdomen nearly black. Head convex, with obscure 

 impression; elytral declivity with stria3 not deeply impressed; punc- 

 tures of pronotum distinct, coarse, irregular; posterior half of pro- 

 episternal area punctured; stria? of elytral declivity with fine 

 punctures; elytral stride scarcely impressed; punctures moderately 

 coarse; interspaces with rugosities moderately coarse, acute, and 

 rather coarsely placed; j)ronotal punctures coarse, deep, moderately 

 dense. Secondary sexual characters: Elytral declivity convex; 

 striae distinctly impressed; punctures obscure; interspaces convex, 

 with irregular punctures and rows of granules. 



Type labeled "No. 7454 U.S.N.M.," name label, "Hopk. 1/22/08, 

 Pinus murrayana, Keystone, Wyo., J. L. Kebmann, collector, 9 [ 

 Hopk. U. S. 2690." 



