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Evaniid Wasp
This little parasitic wasp is about 1/4 to 1/3 of
and inch long. The wasps generally completely black but can be orange, brown
or yellow. They do not sting or bit humans or pets. This wasp lays their eggs inside the egg
case off cockroaches. The female does this by penetrating to the tough skin
of the egg case with her abdomen. Then she lays her egg inside the cockroach
case. This process can take anywhere between fifteen minutes to half an hour
to complete. Once inside the larva feeds on a single egg then as it matures
it attacks other roach eggs in the capsule. Because of how slow the process
is there needs to be a high population of these wasps inside a building for
there to be any affect on a cockroach infestation. Unfortunately I am not
aware of this particular parasitic wasp existing in Australian as yet.
Although other parasitic wasps do exist in Australian this particular wasps
is documented to be existing in American Roach Oriental Roach Smokybrown Roach Australian Roach German
Roach Brownbanded Roach |
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