Aegus chelifer
In 3 days ~20% in a week ~40%
Aegus chelifer, is a species of stag beetle found in Indo-Malaya regional countries. It is a widespread species of stag beetles found extensively throughout Indo-Malayan regions, west of Wallace's line, including: India, Bangladesh, Sri Lanka, Andaman and Nicobar islands, Myanmar, Thailand, Singapore, Laos, Vietnam, Cambodia, Malayan peninsula, Sumatra and Borneo. However, the species was recently found from Seychelles and Madagascar as an introduced species. The major cause for this is the dispersal event of large number of floating tree trunks from coastal forests of South East Asia which were carried westward by the South Equatorial Current during 2004 Indian Ocean earthquake and tsunami.
Body length is about 15.0 to 39.5 mm. This species shows great intraspecific variation in their body sizes. Males can be divided into two morphs based on their mandible size as minor and major morphs. A saproxylic species, adults and grubs are generally found in deadwood of broadleaf trees, under bark or fallen tree trunks, in forest patches near human settlements and firewood heaps. Male stag beetles usually involve aggressive behavior using their... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Aegus chelifer sighting in Taichung on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 129th most-seen of the 197 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
March
In that month about 20% of wildlife watchers report an Aegus chelifer in Taichung on a given day, against under 5% in April, June–September and November–January, the lowest months. That is one of Taichung's driest months, with about 80 mm of rain against 330 mm in August.
Yes
Of the 7 cities where we can rate Aegus chelifer sightings, Taichung has the highest daily chance: about 10%. Next come Jakarta (Indonesia, about 10%) and Kuala Lumpur (Malaysia, about 10%).
GBIF citizen-science records
It is estimated from how often the Aegus chelifer is recorded against all the insects logged in Taichung (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.
