60 MISCELLANEOUS FOEEST INSECTS. 



20. Pissodes puncticollis n. sp. 



(Plate IV, fig. 20.) 



The type is labeled ''Type No. 7437, U.S.N.M.;" name; "type 

 of drawing; Picea; Randolph Co., W. Va.; A. D. Hopkins, collector; 

 9 1; Hopk. W. Ysi. 70." It was taken from the dead bark of a 

 spruce log collected August 25, 1890. 



Distinctive characters. — Closely allied to P. murrayanse, but distin- 

 guished by its light reddish-brown color, irregular and less dense pro- 

 notal punctures, and larger size, with the alternating interspaces less 

 distinctly elevated, an anterior spot present, and the posterior spot 

 distinct. 



Variations. — The length varies from 4.2 to 6.1 mm.; there is very 

 little variation in the color. The anterior white spot, which is small 

 and situated on the fourth interspace, is obscure in two specimens 

 and situated on the fifth stria in the others. Four adults and 1 larva 

 were examined. 



Host tree. — Picea rubens, in dying bark on felled and standing 

 trees. 



Distribution (Plate XXI, fig. 20).— (Hopk. W. Ya.) West Vir- 

 ginia: Cheat Bridge, Randolph County, Bayard, Tucker County. 



21. Pissodes murrayanse n. sp. 



The type specimen is labeled "Type No. 7436, U.S.N.M.;" 

 name; "Pinus murrayana; Wallowa, Oreg. ; A. D. Hopkins, Apr. 10, 

 '07, bred; Hopk. U. S. 6560a." It was reared from the section of 

 a small tree received from correspondent, H. K. O'Brien, February 14, 

 1907. 



Distinctive characters. — The single imperfect specimen representing 

 this species is closely allied to P. imncticollis, from the type of which 

 it is distinguished by its dark brown color, very small posterior spot, 

 absence of an anterior spot, regular pronotal punctures, and broad 

 third elytral interspace. It is probable that more specimens will 

 show a wider range of variation from those of P. ijuncticollis. 



Host tree. — Pinus murrayanu, in thin bark. 



Distribution (Plate XXI, fig. 21).— (Hopk. U. S.) Oregon: Wal- 

 lowa. 



22. Pissodes coloradensis n. &p. 



The type specimen is labeled "Type No. 7439, U.S.N.M.;" 

 name; "Leadville, Colo., H. F. Wickham, July 7-14, '96, 10,000- 

 11,000 ft.; 9 ; C. L. 39." (Abdomen removed and mounted on 

 separate pin. Labeled "C L 39 9 .") Specimen from Wickham' s 

 collection in the United States National Museum. 



Distinctive characters. — Pronotum distinctly narrower than elytra 

 and punctures irregular, not dense. Elytral scales distinct, giving 



