Definitions
from The Century Dictionary.
- Resembling the thysanurous insects of the genus Campodea or family Campodeidæ (which see).
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective zoology Of, pertaining to, or resembling an
insect orlarva of the genus Campodea.
Etymologies
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Examples
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Coleoptera which as we have seen (pp. 50 _f. _) display a most interesting variety of larval structure, the legless, eruciform larva characterises families in which the imago shows the greatest specialisation, while in the same life-story, as in the case of the oil-beetles (pp. 56-7), the newly-hatched grub may be campodeiform, changing to the eruciform type as soon as it finds itself within reach of its host's rich store of food.
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The larva of Platygaster is at first rather like a small Copepod crustacean, with prominent spiny tail-processes; after a moult this form changes into the legless grub characteristic of the Hymenoptera, among which larvae even approaching the campodeiform type are very exceptional.
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The campodeiform type is relatively unusual, but most of the Neuroptera have larvae of this kind, active, armoured creatures with long legs, though devoid of the tail-processes often associated with similar larvae among the Coleoptera.
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He is thus forced to the necessity of suggesting that the campodeiform larvae of ground-beetles or lacewings must be regarded as due to secondarily acquired adaptations; 'they resemble Thysanura and the larvae of Heterometabola only as whales resemble fishes.'
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A fact of much importance in the transformations of beetles as pointed out by Brauer (1869) is that in a few families, the first larval instar is campodeiform, while the subsequent instars are eruciform.
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S.ch larvae as these latter are examples of the type called _eruciform_ by A.S. Packard (1898) who as well as other writers has laid stress on the series of transitional steps from the campodeiform to the eruciform type afforded by the larvae of the Coleoptera.
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It seems impossible to avoid the conclusion that the active, armoured campodeiform grub differing less from its parent than an eruciform larva differs from its parent, is as a larval type more primitive than the caterpillar or maggot.
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The Neuroptera and Coleoptera among which campodeiform larvae are common, are less specialised than Lepidoptera,
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It is of interest to note that in the earlier stages of some caddises lately described and figured by A.J. Siltala (1907), the legs are relatively very long, and the larva is quite campodeiform in aspect.
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Some of these caddis-grubs retain the campodeiform condition and do not shelter permanently in cases, as their relations do.
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