1918 ENTOMOLOGICAL SOCIETY. 27 



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capture quite frequently specimens of the uncommon Leptura hiforis; I took eight 

 in the second and third weeks of August. A curious thing about the species is 

 that it does not seem to share in the Leptura's generic love of pollen; it is the only 

 species I have never seen on blossom; on the other hand I have more than once 

 captured it settling on newly felled white pine, and nearly all my captures this 

 season were made in front of the tent, the insect flying across the open in the 

 immediate neighbourhood of a large white pine. 



For a native of Perthshire, I celebrated the opening days of the grouse shoot- 

 ing season very appropriately : On August 12th I made the largest bag of the 

 season and in some ways the most interesting, while on the 15th I included in my 

 bag of ordinary game a prize as rare as the Capercailzie would be on a Scottish 

 grouse moor — a beautiful specimen of Monohammus marmorator ^ ; it was 

 captured on a windfall (fresh this season) of balsam fir, while ovipositing on the 

 upper side of the trunk, near a branch axil. It is only the third specimen I have 

 seen in twelve years; my first was captured similarly on fallen balsam near the 

 Village of Lanark, Ont., and the second near Port Hope ; all three in my collection 

 are females; the species is recorded as fairly common in the Lake Superior region. 



For my last note of the season I shall revert to my captures of August 12th. 

 It was an ideal day for collecting; very hot. bright, and perfectly calm. A party 

 of six or eight of us had paddled up the Madawaska to White's Lake and were 

 lunching on a slope by the shore. It is a favorite spot for picnics, which un- 

 fortunately explains how it came to be partly burned over a few years ago. Dead 

 trunks of hemlock, balsam, spruce, pine and birch still stand up among the rasp- 

 berries that have encroached on the scene of the fire ; the rest of the point was saved 

 by the fire rangers' heroic efforts, and it was at the edge of the burnt space, in a 

 hemlock grove with a few scattered pine, spruce, and balsam, that we were lunch- 

 ing. Just after our meal, as my thoughts stole guiltily in the direction of my 

 insect net, I saw something that sent my fingers clutching suddenly for the 

 cyanide bottle: a log-runner (Xylotrechus) racing madly up a limb in the direction 

 0^ the trunk; unfortunately the limb he had chosen to exercise on was the thigh of 

 one of the least entomologically minded members of the party, or the longicorn 

 might either have escaped or at any rate died gloriously without being mutilated, 

 but before I could interfere a horny hand descended in a shower of blows on the 

 " pesky yellow- jacket," and the next moment it lay on the ground " a trunk and 

 a head torn from the shoulders," though not " a body without a name " — 

 Xylotrechus undulatus. I was soon busy examining all the standing balsam on the 

 edge of the grove, especially trees that showed signs of languishing and had their 

 trunks in the sun, for it had always been on such trees that I had taken this insect ; 

 indeed, only a fortnight before I had captured five on the upright shaft of a dying 

 balsam at Head Lake. Soon my search was rewarded by the capture of six 

 specimens, at the same time I noticed large numbers of MelanopMla fulvoguttata 

 and two species of Clirysohoihrvi settling on hemlock — living trees on the sunny 

 edge of the grove. A close scrutiny of their trunks presently revealed a pair of 

 Xylotrechus undulatus mating on the bark and two or three single specimens bask- 

 ing in the sunlight. Before we returned to our canoe 1 had captured (nearly all 

 on hemlock) sixteen specimens of the longicorn and some thirty-five of the 

 buprestids. On the same day I secured one specimen of L. suhhaniata, two 

 L. hiforis, and nine L. canadensis. 



At no other time or place have I seen X. undulatus on hemlock, and I fancy 

 the fire is responsible primarily for the prevalence of these woodborers : it has not 

 only killed and wounded a great deal of timber, but has exposed a wide space to 



