Black Earwig

Chelisoches morio

"Chelisoches morio", also known as the black earwig, are part of the family Chelisochidae. It is an omnivore that can be found worldwide, however it is most prominent in tropical areas, Pacific islands, the Pacific Northwest, and damp environments.
Black Earwig - Chelisoches morio  Black Earwig,Chelisoches morio,Fiji

Appearance

The adults are jet black and can range in size from 18 to 25mm in size, though some have grown to be 36mm. The males cerci are widely separated and serrated compared to the female. The forceps are used for prey capture, defense, fighting and courtship.
Black Earwig - Chelisoches morio  Black Earwig,Chelisoches morio,Malaysia,Penang

Behavior

"C. morio" are most active at night, though normal behavior also occurs during the day.

Food

In addition to consuming prey such as aphids, leaf beetles, hoppers, mites, mealybugs and termites, "C. morio" also consume fruits such as bananas and dragon fruits.

Evolution

"C. morio" have four stages before molting into adults. Females average about 140 eggs within one batch. The incubation period lasts about 5-7 days. Adult males live for about 60 days and adult females live for about 94 days. Once the eggs hatch into the first instar, the nymphs congregate by the mother. The female then takes one day to feed the newly hatched nymphs. Afterwards, the nymphs molt into their second instar, growing and becoming independent of the female. The third and fourth instars show an increase in activity and predatory behavior, with the fourth instar being capable of killing adult prey.

References:

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Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderDermaptera
FamilyChelisochidae
GenusChelisoches
SpeciesC. morio
Photographed in
Fiji
Malaysia