. Injurious and useful insects; an introduction to the study of economic entomology. Insects; Beneficial insects; Insect pests. THE GOOSEBERRY SAW-FLY 95 16-18 mm. long. It consists of a head and twelve segments, which are indicated by the appendages, the spiracles, and the repeated pattern of black dots on the skin. The head is shining black, with many short hairs, and is flattened in front and behind. There is a small simple eye on each side, and a minute three-jointed feeler. The mandibles are strong and toothed. The first pair of maxillse are represented chiefly by a pair of six-jointed pa
. Injurious and useful insects; an introduction to the study of economic entomology. Insects; Beneficial insects; Insect pests. THE GOOSEBERRY SAW-FLY 95 16-18 mm. long. It consists of a head and twelve segments, which are indicated by the appendages, the spiracles, and the repeated pattern of black dots on the skin. The head is shining black, with many short hairs, and is flattened in front and behind. There is a small simple eye on each side, and a minute three-jointed feeler. The mandibles are strong and toothed. The first pair of maxillse are represented chiefly by a pair of six-jointed palps. The labium carries the spinneret and a pair of three-jointed palps. The skin of the body is nearly transparent, and shows the colour of the parts within; thus it appears green over the digestive tube, which is loaded with green food; but is yellow close to the head and hinder end, where the fat-body comes to the surface. Many black spots diver- sify the skin; these are hard and shining, and bear short bristles or groups of bristles. Most of the segments are sub-divided into three annuli, which are marked out by constrictions, and bear each a row of spots extending across the back. The thoracic segments bear pointed, three-jointed legs. The abdominal segments 2, 3, 4, 5, 6, 7, and 9 (the last) are provided with pseudo- pods or prolegs, resembling those of caterpillars, but without the crown of hooks. The pseudopods seem to act as suckers, for the larva can creep up a plate of glass. The last pair are slightly united at the base, and form claspers, which are not much. 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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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsects, bookyear1902
