Casama vilis
In 3 days ~10% in a week ~30%
Casama vilis is a moth of the family Erebidae first described by Francis Walker in 1865. It is found in Sri Lanka, India, Middle East, Ethiopia, Kenya and Somalia. The caterpillar is known to feed on Acacia catechu and Prosopis cineraria. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chennai | 🇮🇳 India |
Rare
Under 5% of wildlife watchers report a Casama vilis sighting in Chennai on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 284th most-seen of the 376 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
December to February
In those months about 10% of wildlife watchers report a Casama vilis in Chennai on a given day, against under 5% in March to November, the lowest months. Those are among Chennai's driest months, with about 50 mm of rain a month against 290 mm in November.
Only Chennai, in our data
Chennai is the only city on Wallace's Line with enough records to rate Casama vilis sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Erebidae
The closest relatives of the Casama vilis that you can see in Chennai (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Sandalwood Defoliator (about 30%), Dot-Underwing Moth (about 20%) and Common Fruit-Piercing Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Casama vilis is recorded against all the insects logged in Chennai (7 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.
