52 THE REPORT OF THE No. 19 



4. Tingis iiliae, Walsh. This beautiful little lace-like plant bug 

 (Fig. 12) may frequently be found in small colonies beneath the 

 leaves. It cannot be said to do much injui-y to the trees. 



Order Coleoptera. 



5. The Linden Leaf-beetle, Chrysomela scalaris, Lee. This attrac- 

 tive beetle occurs commonly on the linden in Ontario, and attacks the 

 foliage both in the mature and larval stages. The perfect beetles are 

 beautiful insects, with the r silvery w^ing-covers spotted with green. 



jS ,„ ■ n.- • / ..." The larvae are thick bodied, white, with a lateral row of black dots. - 

 tig. 12. A TiiifTis (greatly ' ' 



magnified).;; ,_, g, Clir y somela pnirm, Sta\. Mr. Harrington tells me that he has 



twice taken this handsome species upon the leaves of basswood near Hull, Que., in July — three 

 specimens in all. Dr. Fletcher also has specimens taken at Billings Bridge, Ont. 



7. Odontota riohra, Web. This is a common insect on basswood, but it has never been the 

 cause of noticeable injury in Canada. 



8. () dot vtota rosea, Web., is also a common species on the linden, but like the preceding 

 does not do any particular injury. The larvfe, which are of a yellowish white colour, when 

 hatched eat their way into the interior of the leaf, feeding on the soft tissues within, the skin 

 being left entire. 



9. Brachys cerosa, Melsh. This pretty little buprestid has been reared several times by 

 Dr. Fletcher, from blister mines in the leaves of basswood, the beetles emerging in May. 



10. The Strawberry Weevil, Anthouomus signatus. Say. This common enemy of the 

 strawberry is recorded by Dr. Hamilton, (Can. Ent. XXIV., p. 41) as eating the leaves and 

 blossoms of Tilia. This weevil does considerable harm to strawberry plants in Canada. Just 

 before the flowers expand they are severed from their stems by the female weevil, which 

 pierces the buds and lays one white egg in each, which afterwards hatches into a white grub, 

 passintr all its stages inside the fallen bud, eating out the centre and forming a round cocoon or 

 pupa case of the frass, within which it turns to the beetle. (Fletcher, Rep. Dom. Exp. Farms 

 1890). At Ottawa we have noticed that some insect has been at work within the seeds of the 

 basswood, but we have not as yet found any actual specimens. It is possible that the species 

 may prove to be A. signatus, but this, of course, is merely conjecture. 



Order Lepidoptera. 



11. Forest Tent Caterpillar, Malacosoma disstria, Hbn., is one of the most important of 

 our foliage-eating forest insects. When abundant it causes widespread destruction, attacking 

 the basswood as well as many other trees. 



12. Apple-tree Tent Caterpillar, Malacosoma americana, Harr., is also injurious to forest 

 as well as orchard trees, although it is more widely known as destructive to the latter. During 

 seasons when this and the preceding species are abundant, larvae of both kinds may be found 

 feeding together and living in the same nests. In the Annual Report for 1 H98, Mr. Harring- 

 ton reported that G. americana, Harr, and C. disstria Hbn "stripped bare many acres of 

 aspan poplar, basswood and maple groves " in the Ottawa district. The life-histories of both 

 these tent caterpillars, as well as the remedies, are well known, and have been mentioned 

 many tim s in the repoi-ts of our Society. 



13. The Fall Cankerworm, Alsophila pometaria, Harr. These larvae have been very 

 destructive to the foliage of basswood, at Ottawa, every spring for some years. During the 

 past season they were particularly abundant defoliating, and making unsightly, trees of many 

 kinds, the linden and elm coming in for more than their share of injury. These caterpillars 

 have long been known to the practical entomologist, and many experiments have l)een 

 conducted to eradicate them. The remedies now recommended against canker rt^orms are, 



