. Elementary lessons on insects. Insects. 118 ELEMENTARY LESSONS ON INSECTS. Fig. SO.—An adult crane fly. Tipula abdominolis maggots;" also tachina-fles, whose larvae live as parasites within the bodies of other insects. Very many such flies will be obtained in collect- ing from flowers, for nectar and pollen are attractive food for them. Another sort of fly may be found about the live stock in our pastures— biting flies,whose carnivor- ous larvae live in wet soil. There are also long- horned flies (Nematocera), and these are very different. They are mostly long-legged and long-winged, an
. Elementary lessons on insects. Insects. 118 ELEMENTARY LESSONS ON INSECTS. Fig. SO.—An adult crane fly. Tipula abdominolis maggots;" also tachina-fles, whose larvae live as parasites within the bodies of other insects. Very many such flies will be obtained in collect- ing from flowers, for nectar and pollen are attractive food for them. Another sort of fly may be found about the live stock in our pastures— biting flies,whose carnivor- ous larvae live in wet soil. There are also long- horned flies (Nematocera), and these are very different. They are mostly long-legged and long-winged, and of a slender build. Most familiar among them are the mosquitoes, midges and craneflies. The antennae are made up of a con- siderable number of similar segments; sometimes, as in the males of mosquitoes and midges, they are formed like bottle-brushes, being densely ringed with long hairs. All dipterous larvae lack true legs, but they do not all lack a visible head. The larvae of the long-horns last men- tioned have a well chitinized head capsule, with eyes, an- tennae and jaws that are enough like those of more primitive biting insects to be readily identified » upper and lower lip, with two pairs of jaws moving laterally between. The head is quite free in the larvae of mosquitoes and midges and is retracted into the front of the prothorax in cranefly larvae. Many of these more primitive Diptera are 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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Keywords: ., bookcentury1900, bookcollecti, bookdecade1920, booksubjectinsects
