Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . FIG. 13*. —Proboscis of the house-fly. A, right-side view; B, view of the same fromabove; C, semi tubes of its false tracheae; E, a tooth; F, arrangement of teethbetween roots of false tracheae; D, two of the false tracheae with wrinkledmembrane between. In A and B: I, labellum; o, operculum; p, palps; /, ful-crum ; m, mentum. Magnified.—After McCloskie. liquid sweets, or any matter which seems good to the flysmind. The two flaps at the end of the proboscis are supportedupon a framework of strong but
Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . FIG. 13*. —Proboscis of the house-fly. A, right-side view; B, view of the same fromabove; C, semi tubes of its false tracheae; E, a tooth; F, arrangement of teethbetween roots of false tracheae; D, two of the false tracheae with wrinkledmembrane between. In A and B: I, labellum; o, operculum; p, palps; /, ful-crum ; m, mentum. Magnified.—After McCloskie. liquid sweets, or any matter which seems good to the flysmind. The two flaps at the end of the proboscis are supportedupon a framework of strong but delicate rods which act asa set of springs to open and shut the broad flaps. The in-side of this broad, fleshy expansion is rough, like a rasp,and, as Newport states, is easily employed by the insect 120 ENTOMOLOGY. in scraping or tearing delicate surfaces. It is by means ofthis curious structure that the busy house-fly occasionsmuch mischief to the covers of our books, by scraping offthe albuminous polish, and leaving tracings of its depreda-. FIG. 139.—Side view of a labellum. ca, chitinous arch supporting the falsetracheae (pi).—After Kraepelin. tions in the soiled and spotted appearance which it occasionson them. The thorax is somewhat rounded, and though composedof three rings, yet these are so consolidated that it is at firsthard to identify them. The prothorax is rudimentary, the fset
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects
