. Coleoptera : general introduction and Cicindelidae and Paussidae. the body of the cock-roach ; its life-history is not fully^known. The family contains more than 100 species, the greater numberof which inhabit temperate climates; four or five species ofEmenadia occur in the Indian region. Family 85. MELOIDiE (including LYTTIDyE). Head vertical, strongly and suddenly constricted ai some distancebehind the eyes, with an abrupt neclc; antenna variable, usuallyeleven-jointed, inserted before the eyes at the sides of the front; pro-thorax nearly always narrower at the base than the elytra^, not m
. Coleoptera : general introduction and Cicindelidae and Paussidae. the body of the cock-roach ; its life-history is not fully^known. The family contains more than 100 species, the greater numberof which inhabit temperate climates; four or five species ofEmenadia occur in the Indian region. Family 85. MELOIDiE (including LYTTIDyE). Head vertical, strongly and suddenly constricted ai some distancebehind the eyes, with an abrupt neclc; antenna variable, usuallyeleven-jointed, inserted before the eyes at the sides of the front; pro-thorax nearly always narrower at the base than the elytra^, not mar-gined; anterior and middle ; large, conical, and contiguous;anterior coxed cavities large, confluent, open behind ; posterior coxeetransverse, prominent, nearly contiguous; elytra variable; abdomenwith six free ventral segments; each claw with a long appendageclosely applied, beneath it, or toothed ; integument more or less soft. This well known family is in part remarkable for the very-curious hypermetamorphosis in their life-history, and the various. Fig. 74.—Horia dehyi (natural size). forms of larva and pupa, beginning with the active triungulinwhich infests bees and by them is carried to their nests; and inpart for the fact that many of its members contain the substance * Some authors, however, believe that it secretes a fluid agreeable to thewasps amongst which it is found (Ent. Nachr. xi, p. 34); this, however, seemsdoubtful: if it be true, then it seems quite possible that the perfect insect mayobtain the opportunity of ovipositing within the nest. t In Cejjhaloon it is only as broad at the base as the elytra. MELOiDJE. 171 cantharidine, which is of so much use in medicine for producingblisters ; the property has apparently been known from very earlytimes. The life-histories of JSitaris and Epicauta have been referredto above (pp. 32, 33). The family falls into two well-marked divisions as follows :— I. Side-pieces of the meso- and meta-sternum coveredby
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1912
