Insects at home; being a popular account of insects, their structure, habits and transformations . arsal jointsfringed, and are used for swimming. The body is muchflattened above, and this peculiarity alone is sufficient to dis-tinguish it from the Notonectse, with their boat-like beak is short but sharp, and can inflict a smart prick onthe fingers if incautiously seized. Mr. Westwood remarks that in the winter time he has seengreat numbers of CorixEe huddled together under the ice, mostof them grasping each other with their legs. They appearedto be stupified with the cold, and to ha
Insects at home; being a popular account of insects, their structure, habits and transformations . arsal jointsfringed, and are used for swimming. The body is muchflattened above, and this peculiarity alone is sufficient to dis-tinguish it from the Notonectse, with their boat-like beak is short but sharp, and can inflict a smart prick onthe fingers if incautiously seized. Mr. Westwood remarks that in the winter time he has seengreat numbers of CorixEe huddled together under the ice, mostof them grasping each other with their legs. They appearedto be stupified with the cold, and to have no idea of devomingeach other. The present species is blackish-brown, with a slight yellowishtinge. Upon the upper part of the thorax are a number ofsmall yellowish spots, arranged in transverse rows, and some-times running into each other, so as to produce the effect ofdelicate, irregular stripes. The head is yellow, and the eyesand beak are black. If the elytra be examined with a tolerablypowerful magnifying glass, they will be seen to be coveredwith very fine hairs of a pale yellow PLATE HETEROPTERA. 1. Ranatra linearis. 2. Notonecta glauca 3. Nepa cinerea. Plants :— Duckweed (Zemna). On surface of Pondweed (Potamogetm heterophyllus).Starwort (^Aster tripohum). THE WATER-SCCKnON. 585 The insect is common in some places, and can be taken incompany with the Notonecta as it darts through the have taken great numbers of them in the Swindon Reservoir,and, as far as I know, all my specimens were taken in that spot. The next family is that of the Nepidae, popularly known asWater-Scorpions, of which we have but three British best known of these insects is the common Water-Scorpion, which is shown on Plate XIX. Fig. 3. Its scientificname is Nepa cinerea. The Nepidse may be easily known bythe flat and leaf-like body and the shape of the first pair oflegs, which are formed for seizing prey, their joints doublingupon each
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectentomology, bookyear1
