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CHAFER , a word used in See also:modern speech to distinguish the beetles of the See also:family Scarabaeidae, and more especially those See also:species which feed on leaves in the adult See also:state. The word is derived from the O. Eng. ceafor, and it is interesting to See also:note that the cognate Ger. Kafer is applied to beetles of all kinds. For the characters of the Scarabaeidae see See also:COLEOPTERA. This family includes a large number of beetles, some of which feed on
From See also:Cambridge Nat"ral See also:History, vol. ii. "See also:Worms." by permission of See also:Macmillan & Co., Ltd.
Mature See also:female of Chaetosoma claparedii, (From Mechnikov.) a, esophagus; b, See also:intestine; c, anus; d, ovary; e, generative See also:pore; f, ventral bristles.
dung and others on See also:vegetable tissues. The cockchafers and their near See also:allies belong to the subfamily Melolonthinae, and the See also:rose-chafers to the Cetoniinae; in both the beetles eat leaves, and their grubs spend a See also:long See also:life underground devouring roots. In See also:Britain the Melolonthines that are usually noted as injurious are the two species of cockchafer (Melolontha vulgaris and M. hippocastani), large heavy beetles with See also:black pubescent See also:pro-See also:thorax, See also: The larvae of the chafers are heavy, soft-skinned grubs, with hard brown heads provided with powerful mandibles, three pairs of well-See also:developed legs, and a swollen See also:abdomen. As they grow, the larvae become strongly flexed towards the ventral See also:surface, and See also:lie curled up in their earthen cells, feeding on roots. The larval life lasts several years, and in hard frosts the grubs go deep down away from the surface. Pupation takes See also:place in the autumn, and though the perfect See also:insect emerges from the cuticle very soon afterwards, it remains in its underground See also:cell for several months, not making its way to the upper See also:air until the ensuing summer. After pairing, the female crawls down into the See also:soil to See also:lay her eggs. The grubs of chafers, when turned up by the plough, are greedily devoured by poultry, pigs and various See also:wild birds. When the beetles become so numerous as to See also:call for destruction, they are usually shaken off the trees where they See also:rest on to sheets or tarred boards. On the See also:continent of See also:Europe chafers are far more numerous than in the See also:United See also:Kingdom, and the rural governments in See also:France give rewards for their destruction. D. See also:Sharp states that in the See also:department of See also:Seine-inferieure 867,173,000 cockchafers and 647,000,000 larvae were killed in the four years preceding 1870. The See also:anatomy of Melolontha is very fully described in a classical memoir by H. E. See also:Strauss-Durckheim (See also:Paris, 1828). (G. H. Additional information and CommentsThere are no comments yet for this article.
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