858 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
2. THK pink TIMBER beetle. 
ZbntioiM pini Say. 
This insect, already described on page 168, is common in the timber 
region of the Rocky Mountains, boring irregularly into the inner bark 
Of i 1 hies menziesii. The burrows are like those made by the same insect 
in the white pines of New England. The main burrows of the mines 
observed in Colorado were .08 inch in diameter. 
3. The common large red timber beetle. 
Po1ygraphu8 rufipennw Kirby. 
This beetle, so common in Maine and British America, is also common 
in the coniferous trees of the mountains of Colorado, where I have met 
with it at Blackhawk and at Manitou. (See p. 721.) 
4. The large timber beetle. 
Dendroctonus terebrans (Olivier). 
This common eastern form, which occurs from Maine to Georgia, and 
in California and Oregon, also probably infests the pine and spruce of 
elevated regions. I have a specimen from Tacoma, Wash., on Puget 
Sound, a lumbering town, which was identified by Dr. G. H. Horn. 
(See p. 721.) 
5. The western spruce longicorn borer. 
Anthophilax mirificus Bland. 
Order Coleoptera ; family Cerambycidje. 
This beautiful beetle I found June 16, 1877, under the bark of a large 
fir-like spruce, probably Abies menziesii, on the side of a high hill near 
Fk;. 2$2.—Antho]>Mlax uiirifictis. Smith del. 
Virginia City, Mont. The small male was sexually united with the 
black female, and there were several other females near by. From 
