Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . FIG. 212.—Rhyssa. Nat. size. FIG. 213.—Option macrurum. Nat. size. On hatching, the larva, which is a soft, fleshy, footless grub, boresinto the body-cavity of its host, and lying there absorbs the bloodflowing around it, and thus weakens the caterpillar, so that it dies,or the insect does not live beyond the pupa state. Typical generaare Ichneumon, Ophion, Cryptus, Pimpla, etc. Family Stephanidse.—In this very small group the head is globose,the vertex tuberculate and rugose; the costal and sub-costa
Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . FIG. 212.—Rhyssa. Nat. size. FIG. 213.—Option macrurum. Nat. size. On hatching, the larva, which is a soft, fleshy, footless grub, boresinto the body-cavity of its host, and lying there absorbs the bloodflowing around it, and thus weakens the caterpillar, so that it dies,or the insect does not live beyond the pupa state. Typical generaare Ichneumon, Ophion, Cryptus, Pimpla, etc. Family Stephanidse.—In this very small group the head is globose,the vertex tuberculate and rugose; the costal and sub-costal veinsseparate and distinct, the costal cell being present. Stephanuscinctipes. ORDER ETMENOPTERA. 169 Family Braconidse.—The species of this numerous group differ fromthe Ichneumonidae in slight re-spects, , in the absence of thesecond recurrent vein of the forewings, and by having the first sub-marginal cell generally, though notalways, separated from the firstdiscoidal cell, and, with the excep-tion of one sub-family, the Aphi-diuse, by the non-existence of areal articulat
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects
