18 B.C. Entomoi.ogh'.vl Society. 



Pe.\e-i.eaf Blister-mite {Eriophyes pyrl). 



Ill a few isolatecl cases foiiud this mite sevcrel.v in.1iiriu.i; pears. Have never 

 foniid it attacking apjile-trees in British Columbia. 



The "Rusty-leaf" Mite {PlnjUocoptes schlcciendaU, Xalepa). 



This species is widel.v distributed all over the northern United States and 

 probably Canada. It has been recorded from Oregon by Prof. P. J. O'G-ara. 



This mite feeds upon tlie npper surface of the apple-leaves. The symptoms 

 exhibited by foliage so attaclied varies greatly. In some eases the leaves present 

 a red. rusty api>earance which gives the mite its popular name. More often, 

 however, at least in the 'Wrnon District, the leaves have a decided silvery appear- 

 ance. On this account, the work of this pest is almost invariably confused with 

 the disease called " silver-leatV 



The two troubles differ fi-om each other, however, in several important particu- 

 lars. In the case of the silver-leaf the entire leaf is uniformly silvered, while in 

 that of the mite-work it is usually more or less patchy. When a leaf attacked by 

 the mite is examined with a lens.' small islands of normal greeu tissue can be 

 detected among the rest. The leaves of trees attacked by the true silver-leaf are 

 characterized by a soft niilk.v gloss, while those attacked by the mites liave usually 

 a decided metallic lustre. 



The prevalence of these two troubles, so similar in appearance, has caused a 

 great deal of confusion in the minds of ffuit-gro\^'ers and others, and something 

 should be done to distribute in the fruit sections accurate information of how to 

 distinguish between them. 



Several other species of mites produce a silver.y appearance upon the leaves 

 of the trees which ' they attack. A very bad attack of the common red spider 

 (Tctratiychiis himacuhitus) frequently pi-oduces this effect on plum-leaves. Elm- 

 leaves attacked by mites also frequentl.v exhibit a decided silvery sheen. 



The "Apple-scab" Mite (Eriophj/es malifolw?). 



The work of this mite is very abundant in the Vernon District on apple-foliage, 

 and is almost invariably mistaken for apple-scab. The presence of the mites was 

 first pointed out to me by Mr. PI. T. Giissow, Dominion Botanist, and the species 

 was determined by Dr. Nathan BanlvS as probably Erlophi/es walifolkr. 



The work of mites is characterized by brownish or black areas upon the leaf, 

 convex on the upper side, concave on the lower. The mites themselves are found 

 on the under-side, concealed by the pubescence of the leaf. When the mites are 

 present in large numbers the entire leaf may be withered and brown. 



The Garden Millipede (^JiiIus liortensis). 



Though iiyury from millijiedes is not common, reports of damage done, particu- 

 larly to vegetables in gardens, are received from time to time. The reme{l.v is to 

 soak slices of turnip, carrot, etc., in lead-arseuate solution, 2 lb. of the paste form 

 in a gallon of water, and to distribute this poisoned bait around the infested portion 

 of the field. 



I append a list of captures for the Okauagan, mainly Coleoptera : — 



COLEOPTERA. 



Arodus crenatus. La.v B.C. 



Eleodes pimelioides, Mann. 



Epieauta maculata. Fab Swan Lake. B.C. 



Eleodes obscura, Mann Larkin, B.C. 



Corymbites inflatus Peiiticton. B.C. 



Trogositus virescens, Fal. (eatiiig-a]i])lel Larkin, B.C. 



Corymbites hierogl.vphicus, I^ay B.C. 



Alares melanoi>s, Lee Larkin, B.C. 



