. A textbook in general zoology. Zoology. 186 OTHER MEMBERS OF THE CLASS — INSECTA. Through this tube, they take in the air. They Uve in this manner for about a week and then change to pupse (Fig. 129). The pupae are also active, and they have the anterior end of their bodies greatly enlarged. They eat nothing, and in a few days their skins split open on the back, and the adult mos- quitoes (Fig. 130) come forth. In general, the mouth parts of flies are formed for sucking like those of the mosquitoes. Familiar members of this group are the horsefly (Fig. 131), the blowfly, house fly, gnats, mi
. A textbook in general zoology. Zoology. 186 OTHER MEMBERS OF THE CLASS — INSECTA. Through this tube, they take in the air. They Uve in this manner for about a week and then change to pupse (Fig. 129). The pupae are also active, and they have the anterior end of their bodies greatly enlarged. They eat nothing, and in a few days their skins split open on the back, and the adult mos- quitoes (Fig. 130) come forth. In general, the mouth parts of flies are formed for sucking like those of the mosquitoes. Familiar members of this group are the horsefly (Fig. 131), the blowfly, house fly, gnats, midges, etc. Flies pass through a complete metamorphosis in their life his- tory. The Fig. 128. — Wiggler of com- mon mosquito, enlarged: r, breathing tube. egg pro- duces a larva, usu- ally whit- ish in color, without feet. It is called a maggot. When it changes to a pupa, it seldom makes a cocoon; but many transform within the last larval skin which serves as a cocoon. Beetles. —This is the largest group of insects and forms the order, Coleoptera (sheath winged). The beetles possess one pair of thin, mem-. 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 Herrick, Glenn W. (Glenn Washington), 1870-1965. New York, Cincinnati [etc. ] American Book Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912
