Forest entomology . tions of the bud,from the outer scales to the centre. Theywere discovered in all stages—viz., eggs,larva?, nymphs, and perfect mites. Thisspecies of mite is larger than the speciesfound on the black currant. The eggs arewhitish, smooth, and oval. The nymph isapproximately about one-half or one-thirdthe size of the perfect mite, and the fourlegs are stretched out in the direction ofthe mouth. An examination of the swollen budsduring May, when the leaves were halfdeveloped, showed the infested budsto be tenanted in all parts, and afew mites crawling along the
Forest entomology . tions of the bud,from the outer scales to the centre. Theywere discovered in all stages—viz., eggs,larva?, nymphs, and perfect mites. Thisspecies of mite is larger than the speciesfound on the black currant. The eggs arewhitish, smooth, and oval. The nymph isapproximately about one-half or one-thirdthe size of the perfect mite, and the fourlegs are stretched out in the direction ofthe mouth. An examination of the swollen budsduring May, when the leaves were halfdeveloped, showed the infested budsto be tenanted in all parts, and afew mites crawling along the were in all stages — viz., full - grown mites, nymphs, andeggs. In July another examination was made, and it was found that themites were chiefly in the interior portion of the swollen buds. Therewere a few on the leaf-stalk and on the portion of the stem adjacentto the infested buds. At this time the swollen buds were quite halfan inch in diameter, and the young buds for the forthcoming seasonwere just Fig. 23.—Abortive swollen badscaused by Eriophyes avellanajon hazel. ERIOPHYID^E OR GALL-MITES. 25 Eriophyes rudis, Canest., on the leaf-buds of Betula alba. Synonymy of mite (Connold) :— PJnjfoptus rudis, calycqphthirus, Nalepa. In fig. 24 two swollen buds on birch are represented. They werefound in High Legh, Cheshire, and cut from the same branch, andin close proximity to a witches-broom —that peculiar bird-nest-likeappearance seen on birch and horn-beam, of the growth and developmentof which Miss Ormerod gives a veryinteresting account, from personal ob-servations made during 1876 and 1877,while resident in the neighbourhood There is no doubt, fromthe description and illustration givenby her, and more especially from theappearance of the actual branch itself,seen in the South Kensington Museum,that the abnormal branch growths wereheavily covered with swollen buds in-fested by Eriophyinre. I had, in consequence of MissOr
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