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instar

instar

instar Sentence Examples

  • Young resembling parents, but penultimate instar passive and enclosed in a filmy pellicle.

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  • Penultimate instar passive in some cases.

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  • The new instar - or temporary form - is often very different from the old one, and this is the essential fact of metamorphosis.

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  • But examples are not wanting of a more or less complete resting habit during the latest nymphal instar.

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  • Young animals always unlike parents, the wing-rudiments developing beneath the larval cuticle and only appearing in a penultimate pupal instar, which takes no food and is usually passive.

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  • Pupa incompletely obtect or free, and enclosed in the hardened cuticle of the last larval instar (puparium).

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  • The change from an exopterygote to an endopterygote development could, therefore, be brought about by the gradual postponement to a later and later instar of the appearance of the wing-rudiments outside the body, and their correlated growth inwards as imaginal disks.

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  • As the life-conditions and feedinghabits of the larva and imago become constantly more divergent, the appearance of the wing-rudiments would be postponed to the pre-imaginal instar, and that instar would become predominantly passive.

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  • In at least one genus the unjointed pincers of the forceps are preceded, in the youngest instar by jointed cerci.

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  • There is an easy exit for the tiny first instar caterpillar to escape from the confines of its egg.

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  • Once in the final instar, I was able to use the caterpillars guide by Jim Porter to identify them.

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  • When they hatch the first instar of the larval stage is very small and makes tiny holes in the leaf.

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  • The upper image is of an early instar - probably stage 2. The search for food causes the family group to disperse.

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  • The 5th larval instar, is followed by the winged imago stage which are 3mm long and brown-black in color.

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  • The five young animals molted to second instar within a few weeks.

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  • instar larvae look similar regardless of which species they belong to.

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  • instar nymphs have a pale area centrally on the dorsal thorax.

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  • instar s, shedding layers of skin to accommodate its ever increasing size.

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  • instar stages.

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  • instar caterpillar to escape from the confines of its egg.

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  • Its condition thus recalls the pupal instar of the higher (Endopterygote) Hexapoda; and the Thysanoptera, though few in number, are seen to be of great interest to the student, exhibiting at once a transition between the biting and the suctorial mouth, and the passage from " incomplete " to " complete " metamorphosis.

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  • The new instar - or temporary form - is often very different from the old one, and this is the essential fact of metamorphosis.

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  • Among a few of the beetles or Coleoptera, and also in the neuropterous genus Mantispa, are found life-histories in which the earliest instar is campodeiform and the succeeding larval stages eruciform.

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  • But examples are not wanting of a more or less complete resting habit during the latest nymphal instar.

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  • In the metabolic Hexapoda the resting pupal instar shows externally the wings and other characteristic imaginal organs which have been gradually elaborated beneath the larval cuticle.

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  • Some pupae are thus more active than some nymphs; the essential character of a pupa is not therefore its passivity, but that it is the instar in which the wings first become evident externally.

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  • Penultimate instar a flying sub-imago.

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  • Young resembling parents, but penultimate instar passive and enclosed in a filmy pellicle.

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  • Penultimate instar passive in some cases.

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  • Young animals always unlike parents, the wing-rudiments developing beneath the larval cuticle and only appearing in a penultimate pupal instar, which takes no food and is usually passive.

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  • Pupa incompletely obtect or free, and enclosed in the hardened cuticle of the last larval instar (puparium).

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  • Further, although the wing-rudiments appear externally in an early instar of an exopterygotous insect, the earliest instars are wingless and wing-rudiments have been previously developing beneath the cuticle, growing however outwards, not inwards as in the larva of an endopterygote.

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  • The change from an exopterygote to an endopterygote development could, therefore, be brought about by the gradual postponement to a later and later instar of the appearance of the wing-rudiments outside the body, and their correlated growth inwards as imaginal disks.

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  • As the life-conditions and feedinghabits of the larva and imago become constantly more divergent, the appearance of the wing-rudiments would be postponed to the pre-imaginal instar, and that instar would become predominantly passive.

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  • In at least one genus the unjointed pincers of the forceps are preceded, in the youngest instar by jointed cerci.

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  • The final instar is normally collected (slide 14) before the caterpillars fall to the ground and pupate just below the soil surface.

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  • 2d, 3 c) is always "free," the legs, wings and other appendages not being 1 Instar is a convenient term suggested by D.

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  • Among a few of the beetles or Coleoptera, and also in the neuropterous genus Mantispa, are found life-histories in which the earliest instar is campodeiform and the succeeding larval stages eruciform.

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  • In the metabolic Hexapoda the resting pupal instar shows externally the wings and other characteristic imaginal organs which have been gradually elaborated beneath the larval cuticle.

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  • Penultimate instar a flying sub-imago.

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  • - a, Cast-off nymphal skin of Bed-bug (Cimex lectularius); b, Second instar after emergence from a; c, The same after a meal.

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  • 2d, 3 c) is always "free," the legs, wings and other appendages not being 1 Instar is a convenient term suggested by D.

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  • - a, Cast-off nymphal skin of Bed-bug (Cimex lectularius); b, Second instar after emergence from a; c, The same after a meal.

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