Proceedincjs, llllo. 



so far in these parts. It has been estimated that a single female molh will lay on 

 the average of 305 eggs, and that a <Iuster of oi-'fis will contain an average of 117 

 eggs, thus indicating that a single moth will deposit one or more clusters of eggs. 

 (Sanderson.) 



During the past winter I collected a number of these egg-masses and estimated 

 that medium-sized clusters contained on the average of 4S.5 eggs, with an average 

 hatching fertility of 56.6 per cent. Parasites play an important part in the control 

 of this insect during the summer, as lias and may be shown by breeding tests, other- 

 wise the former figures would indicate a serious outlook for the safety of our shade- 

 trees. The lirown moths fly in July and may be collected in thousands around the 

 electric lights in the streets and on verandas. 



As a control nicotine sulphate has been proven very efficacious, and influUe'y 

 more satisfactory to use on plants growing over verandas, steps, or trellis-worli 

 around houses than arsenate of lead, mainly for the reason that it does not mark 

 the paint or woodwork. Arsenate of lead, apart from its unsightly effect in a rose- 

 garden, is an admirable insecticide. 



The Rose Bud-worm (Olcthreiitcs sii.) (Tortriddie). 



A species resembling the Eastern nimhatuna has been taken here (Vancouver 

 B.C.), reared from apple. Literature of the species records it under the above 

 common name. Apparently its habits on the rose. as. indeed, the whole '" make-up " 

 of the larva itself, closely resembles the former species, A. ronaceana. so that the 

 two are hardly distinguishable. 



The Fruit-tree Le.iiF-eoller (Archips argyrospiJa) (Tortricidii^). 



This is another insect closely related and similar to the two foregoing Tortri- 

 cidiB. It has been reared on the Pacific Coast from apple, and as it is a very general 

 feeder on all kinds of ornamental shrubs and trees, there is little doubt it can also 

 be incorporated in this article. The full-grown larva is dark green in colour, about 

 % inch in length, with the head, thoracic shield, and legs of brown. 



The Alfalfa-looper (Pliylometia (PlusiaJ californica) (Noctuidre). 



During the past season (1014) this insect has been prevalent. There was a 

 serious outbreak recorded for the Okanagan during the early part of the summer, 

 (.s'ce page 0.) Its attack on rhododendrons. laurels, hollies, roses, and several 

 other shrubs and plants has attracted attention on the Coast. The larva? are capable 

 of completely defoliating a bush, and are recognized as olive-green caterpillars, \\-ith 

 bright-green heads, mouth-parts brown, and black thoracic legs. When disturbed 

 they curl up and drop to the ground, then refusing to move. Fortunatelj- parasites 

 played an important part in the control of these.^ insects. While they were very 

 common this past season, there is little likelihood of damage being caused in the 

 1015 season. 



The West Coast Painted-lady (Vaiiosiia cnrinr) (Nymphalimi;). 



The over-wintering butterflies of this species may often be taken in the first 

 warm days of the spring. While the adult is one of the most beautiful of our Coast 

 butterflies, the larv.-e are by no means so iirepossessing. During this past summer 

 the caterpillars were plentiful on many malvaceous plants, and hollyhocks in particu- 

 lar suffered severely in Vancouver. Both V. atlantn and V. cardid occur ou the 

 Coast, the former being rare, while the latter may frequently be found on thistles. 

 Vaiienisa californica Is mainly confined to interior points of this I'roviuce on its 

 natural food-plants of the Ceanothus family. 



The Blues (Lycrenlda-). 



The larva> of one of these butterflies this summer destro.vod the appearance of 

 patches of violets in the gardens of the city b.v riddling the leaves with fi'cding 

 areas and in some cases b.v totally destroying the leaf. 



