60 THE CANADIAN ENTOMOLOGIST. 



Black Hills and in Northern Colorado. This is simply offered as a sug- 

 gestion of the probabilities, and to call attention to this feature, which 

 should be considered in future investigations. 



From the Black Hills he went further west, through Wyoming and 

 Montana to Spokane, Washington, thence to the Priest River Reserve, 

 where he found Dendroctonus vionticola doing considerable damage to 

 Finns monticola in the vicinity of Priest Lake. He also found D. 

 pseudotst(g(c, Hopk. MS., intimately associated with the dying of the large 

 red fir ( Fsendoisuga taxifoUa). This latter species of Dendroctonus, he 

 said, was one which for a long time had been confused with D. similis, 

 Lee, but upon examination of the type o( D. simiVis he found it to be 

 quite a different thing, and undescribed, while D. similis is a synonym of 

 D. obesus, Mann. 



He found also the pine-defoliating butterfly occurred in considerable 

 numbers, flying around the tops of the pine trees. The fact that this but- 

 terfly was almost exterminated by its parasites a few years ago, and is now 

 apparently on the increase, suggests that it may again become destruc- 

 tive within a few years. Returning from Priest River, by the way of 

 Spokane, he visited Sand Point, Idaho, where, in 1899, he discovered a 

 young six-year-old entomologist, in whom he was very much interested. 

 His name is Charley Boyers. From Sand Point he went to Seattle, and 

 thence into the Cascade Mountain range, where, among other finds, he 

 made the discovery of a large Prionus larva boring in the living sapwood 

 of a red fir, which four or five years previous had been injured by fire, but 

 not killed. This was of interest, from the fart that this species is not 

 supposed to bore into the living sapwood of standing trees. He also spoke 

 of the great windfalls in the forests of that region, and the extreme ditificulty 

 met with in penetrating the forests thus obstructed by the great trees 

 lapping over each other, making it necessary sometimes to climb from one 

 tree to another, until one was twenty or thirty feet from the ground. He 

 also spoke of the rich field for the Scolytid si)ecialist in these wind-felled 

 trees, which were infested by many species ; and spoke of such windfalls 

 being the cause of serious depredations by insects which bred in them. 

 Returning through Washington and Oregon to San Francisco, he found 

 that the Phlceosinus mentioned by Mr. Fowler, under the name of P. 

 punctatus*, as destructive to the Lawson cypress, was x\o\. punctatus, but 

 an undescribed species which he had found in a Cryptomeria when there 



^* Report of work of the Agr, Exp. Sta., Univ. of Calif., 189S-1901, Part I., page 80. 



