Chelisoches morio
In 3 days ~10% in a week ~20%
Chelisoches morio, the black earwig, is a species of insect in 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. 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.
Chelisoches morio are most active at night, though normal behavior also occurs during the day. 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.
Chelisoches morio have four instar 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... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Daintree National Park | 🇦🇺 Australia |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore |
Rare
Under 5% of wildlife watchers report a Black Earwig sighting in Singapore on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 788th most-seen of the 1045 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Black Earwig in Singapore on a given day, so our monthly data shows no clear season.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Black Earwig sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Singapore, in our data
Singapore is the only city on Wallace's Line with enough records to rate Black Earwig sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Black Earwig is recorded against all the insects logged in Singapore (8 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
