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词汇 pupa
释义

Definition of pupa in English:

pupa

nounPlural pupae ˈpjuːpəˈpjupə
  • An insect in its inactive immature form between larva and adult, e.g. a chrysalis.

    Example sentencesExamples
    • Total RNA was isolated from third instar larvae, pupae, adult body, and adult head by TRIZOL reagent.
    • Ovaries from late fifth instar larvae and pupae were used for initiating the cell cultures.
    • Other invertebrates survive dry periods by remaining in the pond substrate as eggs, pupae, or aestivating adults.
    • When a male molts from a larva to a pupa, the horns evert, unfold, and stretch out to their full shape and length - not unlike extending a collapsed telescope.
    • Around her were tiny, silver eggs, chubby larvae, and pupae folded like mummies inside translucent cases.
    • Testes were dissected in Schneider's Drosophila media from larvae, pupae, or adults.
    • The house fly has complete metamorphosis: egg, larvae, pupae and adult.
    • Parasitoids overwinter as pupae in mines within fallen leaves.
    • The number of clutches of eggs, larvae in each instar, pupae, and new adults emerging in the next generation were recorded.
    • Sift through the litter where the windrows were, checking in and around crowns for larvae, pupae, and adult weevils.
    • In most species for which detailed dietary information is available, ant larvae and pupae represent the most important food resource.
    • All flies pass through four life stages: egg, larva, pupa and adult.
    • These snakes feed on smaller prey - the larvae, pupae, and adults of ants and termites - and they do so remarkably fast.
    • When temperatures drop, stable flies overwinter as larvae or pupae in piles of larval breeding material.
    • The three stages of the ancestral insect species - pronymph, nymph and adult - are proposed to be equivalent to the larva, pupa and adult stages of insects with complete metamorphosis.
    • Red stripe appears as a diffuse stripe of pigment on the dorsum of larvae and pupae and is variable in expressivity and penetrance.
    • Insect pupae have all of the major structures of the adult, and most of these structures have already reached their final dimensions.
    • The adult flea is an excellent jumper passing through a complete life cycle consisting of egg, larva, pupa and adult.
    • At the end of each experiment the males were individually housed until pupae emerged from all parasitized males.
    • Once in New York, the eggs hatch into larvae, molt into pupae, and finally emerge as adults, ready to take on the Big Apple.

Derivatives

  • pupal

  • adjective ˈpjuːp(ə)lˈpjup(ə)l
    • Prior to pupal emergence, brood combs were placed in an incubator and newly emerged workers were paint-marked on the thorax.
      Example sentencesExamples
      • They control everything from when animals sleep, wake, and are most alert, to when an insect emerges from its pupal case or a flower produces nectar.
      • All of these results show that the pupal male was almost always killed by the already eclosed male immediately after, or even before, eclosion.
      • Emerged adult Axarus and shed pupal exuviae were removed from the trap daily.
      • The type of pupation site selected by larvae also affects pupal survival of D. melanogaster.

Origin

Late 18th century: modern Latin, from Latin pupa 'girl, doll'.

Rhymes

blooper, cooper, Cowper, duper, grouper, Hooper, looper, pea-souper, scooper, snooper, stupa, stupor, super, trooper, trouper, whooper

Definition of pupa in US English:

pupa

nounˈpjupəˈpyo͞opə
  • An insect in its inactive immature form between larva and adult, e.g. a chrysalis.

    Example sentencesExamples
    • The number of clutches of eggs, larvae in each instar, pupae, and new adults emerging in the next generation were recorded.
    • Insect pupae have all of the major structures of the adult, and most of these structures have already reached their final dimensions.
    • Ovaries from late fifth instar larvae and pupae were used for initiating the cell cultures.
    • In most species for which detailed dietary information is available, ant larvae and pupae represent the most important food resource.
    • Around her were tiny, silver eggs, chubby larvae, and pupae folded like mummies inside translucent cases.
    • Parasitoids overwinter as pupae in mines within fallen leaves.
    • These snakes feed on smaller prey - the larvae, pupae, and adults of ants and termites - and they do so remarkably fast.
    • Other invertebrates survive dry periods by remaining in the pond substrate as eggs, pupae, or aestivating adults.
    • Testes were dissected in Schneider's Drosophila media from larvae, pupae, or adults.
    • The three stages of the ancestral insect species - pronymph, nymph and adult - are proposed to be equivalent to the larva, pupa and adult stages of insects with complete metamorphosis.
    • Once in New York, the eggs hatch into larvae, molt into pupae, and finally emerge as adults, ready to take on the Big Apple.
    • The adult flea is an excellent jumper passing through a complete life cycle consisting of egg, larva, pupa and adult.
    • The house fly has complete metamorphosis: egg, larvae, pupae and adult.
    • Total RNA was isolated from third instar larvae, pupae, adult body, and adult head by TRIZOL reagent.
    • Red stripe appears as a diffuse stripe of pigment on the dorsum of larvae and pupae and is variable in expressivity and penetrance.
    • When a male molts from a larva to a pupa, the horns evert, unfold, and stretch out to their full shape and length - not unlike extending a collapsed telescope.
    • At the end of each experiment the males were individually housed until pupae emerged from all parasitized males.
    • When temperatures drop, stable flies overwinter as larvae or pupae in piles of larval breeding material.
    • Sift through the litter where the windrows were, checking in and around crowns for larvae, pupae, and adult weevils.
    • All flies pass through four life stages: egg, larva, pupa and adult.

Origin

Late 18th century: modern Latin, from Latin pupa ‘girl, doll’.

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