Title: Phantom midge larva
1Phantom midge larva
2Damselfly nymph
3Diving beetle
43 types of snails
5Water boatman and backswimmerslong, oar-like
legs with stiff swimming hairs and their general
shape.
6- 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
7Water boatmen and backswimmers
- http//www.pbase.com/tmurray74/water_bugs
8Fairy shrimp .5 to 1.5 inches. Orange to green
. Swim upside down in water.
9Water scorpion Majority of species are long and
narrow. Abdomens end in a pair of long breathing
tubes. Fierce predators.
10Crayfish
11Backswimmer - water boatman
12Mosquito larvae
13Mayfly larvae (3 distinct tails)
14Horsehair worm Adult horsehair worms are
free-living, but all immature are internal
parasites for part of their lives, many in
leeches, insects or crabs.
15Leech
16Beetle larva
17Dragonfly nymph
18Beetle larva
19Identification Quiz Section
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21- http//www.pbase.com/tmurray74/water_bugs
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243 types of snails
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26Phantom midge larva
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