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Phantom midge larva

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Its front two pairs of legs are quite short but the rear pair are long and ... prey by jabbing it with its rostrum (feeding tube) and injecting its toxic ... – PowerPoint PPT presentation

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Title: Phantom midge larva


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Phantom midge larva
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Damselfly nymph
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Diving beetle
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3 types of snails
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Water boatman and backswimmerslong, oar-like
legs with stiff swimming hairs and their general
shape.
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  • Water boatman, common backswimmer Notonecta
    glaucaThis insect swims upside-down, propelled by
    two long legs which paddle like oars, making it
    look like a rowing boat.Statistics?Water boatmen
    grow up to 20mm in length.Physical Description?A
    small brown or green insect with large reddish
    eyes. Its front two pairs of legs are quite short
    but the rear pair are long and fringed with hairs
    at the end. Their overall appearance resembles a
    rowing boat. This insect swims upside-down and
    carries a bubble of air on its ventral side which
    gives it a silvery appearance. The ventral side
    is covered in hairs which prevent water from
    covering the spiracles that the insect uses to
    breathe.Distribution?They are widespread
    throughout Europe.Habitat?They inhabit ponds,
    ditches and canals.Diet?Water boatmen eat
    tadpoles, small fish and aquatic
    insects.Behaviour?Water boatmen rest on the
    surface of the water sensing vibrations. If there
    is something disturbing the water they will
    immediately dive to investigate. When the boatmen
    are within one or two inches of their prey they
    can begin to track it using their eyesight. They
    kill the prey by jabbing it with its rostrum
    (feeding tube) and injecting its toxic
    saliva.Water boatmen are very effective predators
    and can catch and eat tadpoles, small fish and
    even the fearsome larvae of the diving beetle
    (Dytiscus marginalis). They will also eat
    airborne insects that have accidentally fallen
    onto the surface of the water. Adults can fly and
    will move between different ponds.Reproduction?Mat
    ing occurs between December and May and eggs are
    laid between February and May of the following
    year. Eggs are elongate and oval and are laid in
    aquatic plant stems.Notes?The water boatmans
    saliva is toxic and its bite is quite painful. It
    is otherwise harmless.The lesser water boatman
    (Corixa punctata) is not actually closely related
    to the water boatman. It swims on its front and
    feeds on algae.

http//www.bbc.co.uk/nature/wildfacts/factfiles/42
8.shtml
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Water boatmen and backswimmers
  • http//www.pbase.com/tmurray74/water_bugs

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Fairy shrimp .5 to 1.5 inches. Orange to green
. Swim upside down in water.
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Water scorpion Majority of species are long and
narrow. Abdomens end in a pair of long breathing
tubes. Fierce predators.
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Crayfish
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Backswimmer - water boatman
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Mosquito larvae
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Mayfly larvae (3 distinct tails)
14
Horsehair worm Adult horsehair worms are
free-living, but all immature are internal
parasites for part of their lives, many in
leeches, insects or crabs.
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Leech
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Beetle larva
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Dragonfly nymph
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Beetle larva
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Identification Quiz Section
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  • http//www.pbase.com/tmurray74/water_bugs

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3 types of snails
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Phantom midge larva
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