. Injurious and useful insects; an introduction to the study of economic entomology. Insects; Beneficial insects; Insect pests. a short interval (three or four days in summer) the pupal skin cracks along the back of the thorax, and the fly escapes into the air, sometimes rest- ing for afew minutes on the cast skin un- til its wings are dry. The fly is not unlike the harle- quin-fly in general appearance. The male is distin- guished from the female, as in the harlequin-fly, by its bushy feelers. Harlequin flies raise their fore legs from the ground when resting, and stretch them out in front; g
. Injurious and useful insects; an introduction to the study of economic entomology. Insects; Beneficial insects; Insect pests. a short interval (three or four days in summer) the pupal skin cracks along the back of the thorax, and the fly escapes into the air, sometimes rest- ing for afew minutes on the cast skin un- til its wings are dry. The fly is not unlike the harle- quin-fly in general appearance. The male is distin- guished from the female, as in the harlequin-fly, by its bushy feelers. Harlequin flies raise their fore legs from the ground when resting, and stretch them out in front; gnats often raise their hind legs and stretch them out behind. When the female is ready to lay her eggs, she chooses a suitable pool, and after gliding to and fro over the surface for some time, settles on the water, or on some floating object. The hind legs are extended and crossed. Into. Fig. 67.—Male gnat, 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
