. Elementary lessons on insects. Insects. 52 ELEMENTARY LESSONS ON INSECTS. Fig. 17.—A damselfly (Isch- nuraverticalis). With these characters noted it will be quite impossible to confuse a member of this order with any other group. All are aquatic in their immature stages; and hence, however widely the adult females may wander over the land, they return to the water to lay their eggs. Their food is largely other insects that have aquatic larvae, such as midges and mosquitoes. Dragonflies proper are mostly large, stout- bodied insects, having broad wings, the hind wings broader than the fore,
. Elementary lessons on insects. Insects. 52 ELEMENTARY LESSONS ON INSECTS. Fig. 17.—A damselfly (Isch- nuraverticalis). With these characters noted it will be quite impossible to confuse a member of this order with any other group. All are aquatic in their immature stages; and hence, however widely the adult females may wander over the land, they return to the water to lay their eggs. Their food is largely other insects that have aquatic larvae, such as midges and mosquitoes. Dragonflies proper are mostly large, stout- bodied insects, having broad wings, the hind wings broader than the fore, and which at rest are held horizontally outspread. Damselflies are smaller and slenderer with fore and hind wings narrow and alike in form. At rest they are closed together above the back, or are held obliquely aslant. The nymphs of Odonata are very dif- ferent sort of creatures from the adults. They live in the water, are rather in- active and lie in wait for their prey. They are all carnivorous. They feed upon almost any aquatic animals that are small enough for them to capture. Some are cannibals, and eat each other. All are equipped with a long, hinged and jointed grasping labium that is a remarkable organ. 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 Needham, James G. (James George), 1868-1956. Springfield, Ill. , Baltimore, Maryland, C. C. Thomas
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