Proceedings, 1915. - 31) 



The Hemlock-loopek (Tlicriiia sp.). 



Two "loopers" occur ou the Coast, one attiickiug hemlocks (Vancouver) anil 

 the other oaks (Victoria). The former, I believe, is referred to as T. ferviilarUi. 

 while the latter has been called T. somniaria. I am not satisfied that we are entirely 

 correct as to these specific names, and it is advisable to make more certain. The 

 former species on the hemlock is one of the specially injurious in Stanley Park' at 

 the present time. 



Cedar-leaf Miner. 



The larva of a small moth is commonly to be found mining the leaves of the 

 cedar. It is very prevalent in certain sections of Stanley Park, and greatly dis- 

 flgui-es the trees. It will be recognized by its habits of turning the leaves brown 

 and liy producing a swelling on the affected leaf-tissues. 



The SPKrCE-CHEEMES. 



These and other insects affecting the timber of the Pacific Coast have been the 

 snbjeft of considerable investigation by Mr. .T. il. Swaino. who has charge of forest- 

 insect investigations under the Dominion Entomological Branch. It is to be hoped 

 that when Mr. Swaine has completed his work, in which he is being assisted by 

 Mr. rt. X. Chrystal, he will be able to give our Society some of the benefits of his 

 researche.'!. 



COLEOPTERA (BEETLES ) . 



Oliorliiinchns sulcatiis. 



A large white grub may frequently be found in and among the roots of several 

 plants in the herbaceous border, notably in primulas. Frequent reports have been 

 received in the city i-egarding this insect. It also has been observed affecting straw- 

 berries, and growers of this crop in a few cases have lost severely. The larvre may 

 be found embedded in the roots of the plants, actively devouring the tissue's^ while 

 those specimens in the soil will devour the roots themselves. The result is that the 

 plants die, the effect becoming most noticeable in the spring. The eggs of the species 

 are laid during August, and the minute larvre hatch in September, and become 

 quarter-grown during the fall. A partial dormancy is experienced during the winter, 

 but in the spring the attack again progre-sses. It is at this time that the plants 

 suffer most. Pupte are formed in the soil during May and June, and the adults 

 appear in June and July. 



A close relative, O. ovatii''. is found to be the more injurious of the two species 

 to the fruit-grower, but O. sulcatiin has proved more important to the gardener. 

 The life-histories of the two species closely resemble one another, and a report on 

 0. ovatus with control measures may be seen in Bulletin No. 2 of our series, page 41. 



Click-beetles (Elateridie). 



We have many species of click-beetles recorded in our proceedings ; several of 

 them have been shown to be injurious to blossoms of trees while iu bloom. The 

 damage, of course, to the ftuit-grower is more serious than to the gardener, for the 

 reason that the attack destroys the possibility of the resultant fruit. However, 

 it is interesting to note that the adults of these t)eetles are also injurious to 

 ornamentals. 



Chrysomelius. 



These leaf-feeding beetles at times pay us visits, as they did last summer, and 

 frequently cause considerable barm. The species observed are not yet identified. 



The Poplar-borer {Saperrla calcnrata). 



This beetle is also recorded tor the Province as injurious to willows and poplars. 



