larvae的意思|larvae的解释-里氏词典

larvae ['lɑrvi]

幼虫(昆虫), 幼体, 蚴(蠕虫)

[医] 幼虫(昆虫), 蚴(蠕虫)

Larva \Lar"va\ (l[aum]r"v[.a]), n.; pl. L. {Larv[ae]}
(l[aum]r"v[ae]), E. {Larvas} (l[aum]r"v[.a]z). [L. larva
ghost, specter, mask.]
1. (Zo["o]l.) Any young insect from the time that it hatches
from the egg until it becomes a pupa, or chrysalis. During
this time it usually molts several times, and may change
its form or color each time. The larv[ae] of many insects
are much like the adults in form and habits, but have no
trace of wings, the rudimentary wings appearing only in
the pupa stage. In other groups of insects the larv[ae]
are totally unlike the parents in structure and habits,
and are called {caterpillars}, {grubs}, {maggots}, etc.

2. (Zo["o]l.) The early, immature form of any animal when
more or less of a metamorphosis takes place, before the
assumption of the mature shape.

The peasants, who had been raising cattle, took out a loan to cover the food, equipment and larvae to raise freshwater prawns.
The developing larvae feed on the flesh of the host, deepening the wound and attracting other egg-laying females.
The eggs are fertilized outside the shell and hatch into free-swimming larvae called veligers.
The nematodes are despatched in a moist, inert carrier and on arrival are mixed with water and applied as a drench to the soil that is infested with vine weevil larvae.
However, the first tree he transplanted from the White House lawn, an elm for the grounds of the North Dakota Capitol at Bismarck, turned out to be infected with destructive gypsy moth larvae.
The people gather the honey and the birds feed on larvae and wax left behind, the report says.
The crops are destroyed when the larvae hatch and growing maggots eat their way out.
By learning to identify their eggs and larvae, we may save time, money, energy and the environment.
Diet cues turn on or off the right set of genes so that they turn into the right shape at the right time of year." Caterpillars, or larvae, hatched in the spring come out and immediately begin feeding on the oak catkin, or flower.
The Varroa mite is an external parasite of adult bees and their developing larvae.
Corn borers cause their crop damage in their worm or larvae stage before maturing to adult moths.
The larvae were removed from the North Dakota tree _ a descendant of one planted by President John Quincy Adams _ and the tree was sprayed with insecticide.
We're just hoping they'll move out of town and move into the houses along the river." Before the Bug Busters, the spraying of newly discovered larvae had to be approved by several agencies, taking up to a week.
"If oil sinks to the bottom, it would kill or cover the crab larvae or eggs that are hatching," said Joe Maroon, president of Virginia's chapter of the Chesapeake Bay Foundation.
Rootworm larvae destroy corn roots, and adults feed on the leaves, tassels and ears.
But in the process it broke, revealing still buzzing insects and larvae.
Hoverflies lay eggs in June and the larvae are ready to munch into action just when needed for summer wheat. Hickman puts predator encouragement into perspective.
After the wasps' eggs hatch, they eat their way out of the whitefly larvae, killing the pest.
The immature worm-like larvae are then eaten by tiny shrimp-like crustacea, which in turn are eaten by squid and some fish.
Scientists will count the number of dead moth larvae and measure the amount of foliage that was protected.
When the emerging guinea worm comes in contact with water, it spews out its larvae which are then eaten by a microscopic animal called a cyclops.
Guinea worm disease, dracunculiasis, occurs in 16 African countries, India and Pakistan and is transmitted through drinking water contaminated with larvae of the guinea worm.
When female oysters are spawning they release thousands of larvae into the water, to come to rest where they may.
Biologists first went after the lamprey, lacing its spawning grounds with a chemical that killed its larvae.
Villagers drink the water contaminated with cyclops and the cyclops die in their bodies, leaving behind the larvae to grow into worms.

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