The entomologist's text book : an introduction to the natural history, structure, physiology and classification of insects, including the Crustacea and Arachnida . he species, however,do we find any instrument acting as the sting of the Hyme-nop tera. There is considerable diversity in the transformation ofthis order; the larvae are hexapod, and very variable in theirhabits and habitations. Many of them reside in the water,where they are either predaceous or vegetable feeders, somefew feeding upon decayed plants, others in holes which theyform in the sand. The majority are carnivorous, and fee
The entomologist's text book : an introduction to the natural history, structure, physiology and classification of insects, including the Crustacea and Arachnida . he species, however,do we find any instrument acting as the sting of the Hyme-nop tera. There is considerable diversity in the transformation ofthis order; the larvae are hexapod, and very variable in theirhabits and habitations. Many of them reside in the water,where they are either predaceous or vegetable feeders, somefew feeding upon decayed plants, others in holes which theyform in the sand. The majority are carnivorous, and feedupon other insects; the aquatic species are provided withan apparatus for obtaining a supply of fresh air, which has some resemblance tolateral series of ex-ternal gills, but whichare, in reality, thetracheae greatly di-lated externally. Thepupse are as activeas the larvae in thedragon-flies and someother species; but inboth these states ofthese insects themouth undergoes aremarkable modifi-ti^e cation of form. In theEphemeridcB there isanother curious modification in the transformations, the in-sects, after arriving at the winged state, throwing off a thm. A, the Dragon-fly making its escape from the pupa—same, drying its wings. NEUROPTERA : CHARACTERS. 367 pellicle in which they had been pre\dously enveloped. In somethe pupa state is inactive, and inclosed in a cocoon formed bythe larvae, as in Hemerobius, Myrmeleon, &c. The Termitidee,or white ants, offer as curious an instance of departure fromthe type of the order as do some of the ApideB in the order Hymenoptera, there be-ing three kinds of indi-/^ f i -s*!^ f viduals exclusive of the / ^^ ^^^^t-^^^a active larvae and pupae. The transformations ofPanorpa are the imago state theduration of life is vari-able, some species, asmany of the Ephemeri-dce, being but the creatures of a day, or even of a still less is also very considerable diversity in the size of these
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Keywords: ., bookau, bookcentury1800, booksubjectcrustacea, booksubjectinsects
