Arthroschista hilaralis
In 3 days ~20% in a week ~40%
Arthroschista hilaralis, also known as the kadam defoliator, is a moth in the family Crambidae. It was described by Francis Walker in 1859. It is found in India, Sri Lanka, Burma, Cambodia, Sumatra, Borneo and in Australia, where it has been recorded from Queensland. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 2 | Kinabalu Park | 🇲🇾 Malaysia | |
| 3 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kolkata | 🇮🇳 India |
With luck
About 10% of wildlife watchers report an Arthroschista hilaralis sighting in Kolkata on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 129th most-seen of the 213 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.
August
In that month about 20% of wildlife watchers report an Arthroschista hilaralis in Kolkata on a given day, against under 5% in March–June and December–January, the lowest months. That is one of Kolkata's wettest months, with about 310 mm of rain against 10 mm in December.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Arthroschista hilaralis sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Kolkata, in our data
Kolkata is the only city on Wallace's Line with enough records to rate Arthroschista hilaralis sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Crambidae
The closest relatives of the Arthroschista hilaralis that you can see in Kolkata (family Crambidae, Crambid Snout Moths) are Hawaiian Beet Webworm Moth (about 20%), Cucumber Moth (about 10%) and Hydrilla Leafcutter Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Arthroschista hilaralis is recorded against all the insects logged in Kolkata (11 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.
