Forest entomology . esabout f inch from the tip of thewings. The upper surface of thewings is a lustrous white colour,and shows five rows of blackspots (over forty in all). The hind wings are dark-grey. Thehead and antennae are white, eyes black, and abdomen grey. The caterpillar is about f inch in length, and of a yellowish-grey colour. The head is black,and there are black spots onthe segments. After the caterpillars are fullfed they congregate within theweb, and pupate in a mass,for the mass of pupal remainsmay be found even in thefollowing year, reminding oneof the empty cases of thewasp o
Forest entomology . esabout f inch from the tip of thewings. The upper surface of thewings is a lustrous white colour,and shows five rows of blackspots (over forty in all). The hind wings are dark-grey. Thehead and antennae are white, eyes black, and abdomen grey. The caterpillar is about f inch in length, and of a yellowish-grey colour. The head is black,and there are black spots onthe segments. After the caterpillars are fullfed they congregate within theweb, and pupate in a mass,for the mass of pupal remainsmay be found even in thefollowing year, reminding oneof the empty cases of thewasp or honey - bee. () As regards the life-historyof this species, I have onlymade observations in North-umberland. The moths ap-pear about the first week inJuly. They deposit their eggsin clusters on the twigs, justimmediately below a bud, and they are most beautifully concealed bya delicate covering, the colour of which harmonises with the tinystem so well that it is only after a most careful search they can be. Fig. -Webb and empty pupal cases of Hypono-meuta evonymellus. LEPIDOPTERA. 273 found at all. So far I have not been able to ascertain the approxi-mate date at which the larvae emerge from the eggs and betake them-selves to the opening buds, but they do not assert themselves on thefoliage until well on the middle of May. Ey this time the leaves arewell developed, and thus afford plenty of food for the larvae, whichlive gregariously, and spin a veil-like web over the colony. They arefull fed by the middle of June, and the pupal stage completes theirlife-history. As this species is in many cases very injurious, and as its host-plant,the bird-cherry or hackberry, has some claims as an ornamental tree,on account of its beautiful white flowers, it would be well in very badcases to adopt some remedial measures. It is obvious that we couldonly apply remedial measures in its larval and pupal stages. As regards checking the larvae, they may be (1) shaken down fromthe t
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