Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 836
Spuacle of Common Fly. is well seen in the spiracle of Tipula (Crane-fly).—In those aquaticLarvae which breathe air, we often find one of the spiracles of thelast segment of the abdomen prolonged into a tube, the mouth ofwhich remains at the surface while the body is immersed; thelarvae of the Gnat… … Spiracle of Larva of Cockchafer. (336. There are many aquatic Larvae, however, which have anentirely-different provision for respiration; being furnished withexternal leaf-like or brush-like appendages into which the tra- Fig. 434. cheae are prolonged, so that, byabsorbing air from the waterthat…
Microscopy · Biology
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