Entomology : with special reference to its biological and economic aspects . Clirysopa reduced. membranous, hairyfew; hind pair almost alwaysthe larger, with plicate analarea. Larvae suberuciform,aquatic, usually , Molanna (Fig. 26).Between five and six hundredspecies are known. 13. Lepidoptera.—Metamor-phosis indirect. Mouth partssuctorial, mandibles absent orrudimentary (except in a few Fig. Bittacus strigosus. Natural size. 15 ENTOMOLOGY generalized species). Prothorax small. Wings four, sim-ilar, membranous, clothed with scales, veins moderate i
Entomology : with special reference to its biological and economic aspects . Clirysopa reduced. membranous, hairyfew; hind pair almost alwaysthe larger, with plicate analarea. Larvae suberuciform,aquatic, usually , Molanna (Fig. 26).Between five and six hundredspecies are known. 13. Lepidoptera.—Metamor-phosis indirect. Mouth partssuctorial, mandibles absent orrudimentary (except in a few Fig. Bittacus strigosus. Natural size. 15 ENTOMOLOGY generalized species). Prothorax small. Wings four, sim-ilar, membranous, clothed with scales, veins moderate in num-ber, cross veins few. Larv?e cruciform (caterpillars), phy-tophagous (almost never carnivorous), mandibulate. Somefifty thousand species have been described. Two suborders,not sharply separated from each other. Suborder Heterocera.—AntenucT of various forms, but notterminating in a distinct knob or club. Frenulum usually Fig. 26.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectentomology, bookyear1
