1903 



ENTOMOLOGICAL SOCIETY 



53 



spray the trees with Paris green, or some other arsenical poison, and to band them with a 

 mechanical protector, some kinds of whicli have been used with success. Bands of sticky- 

 substances may also be placed around the trees to be protected, to prevent the female moths 

 which are wingless, from climbing up the trees to deposit their eggs. 



14. The Spring Cankerworm, PaleacHta vernata. Peck., hatches from the egg at , the 

 same time as the preceding species. Both these cankerworms are similar in appearance, and 

 have the same habits. The Fall Cankerworm moth emerges in the fall, and the Spring 

 Cankerworm moth, in the spring. The caterpillars are slender loopers about an inch and a 

 quarter in length, and vary in colour from greenish-yellow to dusky, or even dark brown, 

 marked with black. 



15. The Lime-tree Winter moth, Erannis {Ryhcrn'm) tidaria Harris. This is another 

 common insect, the larvae of which are often abundant in Ontario and Quebec, some seasons 

 doing' considerable injury. The caterpillar is one which has the power of travelling very 

 quickly from one point to another, and consequently when the species is numerous the injury 

 is widespread. These larvae when full grown are about an inch and a quarter in length, and 

 jn general appearance are bright yellow loopers with a dull red head, and many longitudinal 



black lines on the body, the 

 under side of which is paler. 

 (Fig. 13.) They reach matur- 

 ity towards the end of June 

 and then descend and enter 

 the ground for pupation, the 

 moths appearing in October 

 and November. The female 

 moth is wingless, and the 

 habits of the species in gen- 

 eral are similarto those of the 

 Canterworrn, so the same 

 remedial treatments may be 

 adopted. 



16. The Yellow-necked 

 Apple-tree Caterpillar, Dat- 

 cina minidra, Drury. Colon- 

 ies of these larvae are occa- 

 sionally met with on bass- 

 wood trees. At Ottawa on 

 the 25 August we have found 

 Fiv'. 13. Lime ree Winter Moth ; Male and female moths, and caterpillars. the young laiVie jUSt after 



they have hatched, the moths appearing the following year. These caterpillars are best 

 known from the damage they do to the foliage of the apple. They are interesting in view 

 of their feeding habits and the curious position they assume when at rest. When mature 

 they are about an inch and a half in length. The body is black covered sparsely with long 

 white hairs, and is marked longitudinally with four greenish-yellow stripes on each si4e. 

 The head is shining black, and the body just behind the head bears a conspicuous yellow 

 shield from which the caterpillar derives its common name. 



17. The Basswood Leaf-roller, Pantographa limata, G. & R. A common sight some 



years where basswood trees are numerous, is single leaves cut across from near the middle, and 



he end portion rolled up like a tube. The insect which causes this is a pyralid larva, which 



