. Animal biology. Biology; Zoology; Physiology. 94 ANIMAL BIOLOGY. L THYSANURA VII. EPHEMEROPTERA ANNELID-LIKE ANCESTOR Fig. 54B. — General relationships of the chief orders of the class Insecta. I, Silver-fish; II, Springtail; III, Praying mantis; IV, Earwig; V, Termite; VI, Stonefly; VII, Mayfly; VIII, Dragonfly; IX, Lacewing fly; X, Scorpion fly; XI, Caddice-fly; XII, Stable fly; XIII, Flea; XIV, Butterfly; XV, Bird louse; XVI, Cootie; XVII, Book louse; XVIII, Thrips; XIX, Cicada; XX, Triatoma Idssing bug; XXI, Potato beetle: XXII, Bumble bee. In general, the classi- fication is based on th
. Animal biology. Biology; Zoology; Physiology. 94 ANIMAL BIOLOGY. L THYSANURA VII. EPHEMEROPTERA ANNELID-LIKE ANCESTOR Fig. 54B. — General relationships of the chief orders of the class Insecta. I, Silver-fish; II, Springtail; III, Praying mantis; IV, Earwig; V, Termite; VI, Stonefly; VII, Mayfly; VIII, Dragonfly; IX, Lacewing fly; X, Scorpion fly; XI, Caddice-fly; XII, Stable fly; XIII, Flea; XIV, Butterfly; XV, Bird louse; XVI, Cootie; XVII, Book louse; XVIII, Thrips; XIX, Cicada; XX, Triatoma Idssing bug; XXI, Potato beetle: XXII, Bumble bee. In general, the classi- fication is based on the presence or absence of wings, the structure of the mouth parts, and the character of the life history. See page 478. (From Hegner.). 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 Woodruff, Lorande Loss, 1879-1947. New York The Macmillan company
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