90 THE REPORT OF THE No. 19 



The Tussock Motli lias been fully treated in other parts of this report 

 so requires no special mention here. 



The Larch Case-bearer (Coleophora laricella, Hbn.). During the past 

 summer the European larches on the Experimental Farm, at Ottawa, were 

 seen to have many bleached leaves on some of their branches and upon close 

 examination it was found that the leaves were being eaten by large num- 

 bers of the small European Elachistid, Coleophora laricella, Hbn. This 

 had been recorded previously on larch trees in America; but I am not aware 

 of its ever having been observed in Canada. The injury was not very 

 severe, but every new importation of this nature is worthy of considera- 

 tion, and it is to be hoped that this latest visitor may not be equally injuri- 

 ous here as it is in the German larch forests. The larval case is somewhat 

 similar to that of the Cigar Case-bearer of the Apple, but is rather shorter 

 and pale drab in colour. The caterpillars have a curious habit, when full 

 grown and ready to pupate, of fastening themselves in the centre of a fas- 

 cicle of leaves, where they are difficult to detect. There is only one brood 

 in the year, the moths of which appear in June. They are very small, of 

 a satiny ashy gray in colour, with long antennae and very long fringes to the 

 wings. After pairing*, the females lay their tiny yellow eggs singly on 

 the needles of the larch. These soon after hatch and the larvse eat their 

 way into the slender needles, of which subsequently they make a very slen- 

 der case about one-eighth of an inch long, in which they pass the winter 

 attached to the twigs of the tree. As soon as the young buds begin to swell 

 in spring, these minute caterpillars revive and feed upon the young leaves. 

 The presence of the caterpillars upon a tree is easily recognized by the con- 

 dition of the leaves, the terminal portion of which is bleached and soon 

 shrivels. When the caterpillar attacks a leaf it eats a hole in the side, and, 

 as it consumes the interior portion, it protrudes its body until it can reach 

 no further without leaving its case. The winter case soon becomes too 

 small, when it is split down the side and the emptied skin of another leaf 

 is inserted. The case in which the Larch Case-bearer passes the winter, 

 is straight and slender, not curved as in the case of the Cigar Case-bearer 

 No parasites were reared, and the young larvae are to be found in large 

 numbers on the trees this autumn. 



ENTOMOLOGICAL RECORD, 1905. 

 By James Fletcher, Dominion Entomologist, Ottawa. 



Although few of the correspondents mentioned in the last Entomological 

 Record, to all of whom it was sent, have expressed an opinion of its utility, 

 I learn indirectly that it is highly valued by entomologists as a means of 

 learning what is being done in the country, where species have been taken 

 by our collectors, where these live, and what orders they are specially inter- 

 ested in. Most of this evidence, however, has been given gratuitously by 

 specialists living outside of Canada. 



Up to the present time the Entomological Record has been sent regu- 

 larly to every active collector known to me in Canada. In future it will be 

 sent only to those who acknowledge its receipt. 



From the large number of records sent in, it is evident that some of our 

 collectors do not understand the objects of publishing this paper. These 

 were stated in our first issue and repeated in 1902. There is no idea of pub- 

 lishing year after year long lists of insects which have been taken within 



