. Injurious and useful insects; an introduction to the study of economic entomology. Insects; Beneficial insects; Insect pests. THE HESSIAN-FLY 135 (Cecidomyia), exhibit this peculiarity, and pupate without casting the larval skin. So also do the blow-fly and its near allies, the higher Diptera. Mr Enock has worked out the changes which take place within the flax-seed. The body of the insect first shrinks away from its envelope, "just as a ripe nut shrinks from its ; Next it turns itself about, head for tail, within the huskâa task of some difficulty, for the space is Uttle fv
. Injurious and useful insects; an introduction to the study of economic entomology. Insects; Beneficial insects; Insect pests. THE HESSIAN-FLY 135 (Cecidomyia), exhibit this peculiarity, and pupate without casting the larval skin. So also do the blow-fly and its near allies, the higher Diptera. Mr Enock has worked out the changes which take place within the flax-seed. The body of the insect first shrinks away from its envelope, "just as a ripe nut shrinks from its ; Next it turns itself about, head for tail, within the huskâa task of some difficulty, for the space is Uttle fv . d r u ⢠a 1 â W. ii. i_ J 1 ⢠1 '^^- 75-âPupa of Hessian-fly, Digger tnan the body which OCCU- escaping from larval skin, magni- pies it. This reversal of the ''"^â two ends of the body facilitates the subsequent escape of the pupa. So long as the insect was feeding on the fluids sucked from the joint it kept the original attitude, with head directed downwards â the attitude in which it quitted the egg, and crept down the sheath. But the first thing which the pupa has to do is to crawl up the sheath. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Miall, Louis Compton, 1842-. London, G. Bell & sons
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsects, bookyear1902
