Herpetogramma basalis
In 3 days ~20% in a week ~30%
Herpetogramma basalis is a species of moth in the family Crambidae. It is found on the Canary Islands and in Japan, China, Australia, Sri Lanka, India, Indonesia, La Réunion, South Africa, and Mali. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kolkata | 🇮🇳 India |
With luck
About 10% of wildlife watchers report a Herpetogramma basalis sighting in Kolkata on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 193rd 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 30%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Herpetogramma basalis in Kolkata on a given day, against under 5% in May, July and September–March, the lowest months. That is one of Kolkata's wettest months, with about 310 mm of rain against 10 mm in December.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Herpetogramma basalis sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Kolkata, in our data
Kolkata is the only city on Wallace's Line with enough records to rate Herpetogramma basalis sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Crambidae
The closest relatives of the Herpetogramma basalis 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 Herpetogramma basalis is recorded against all the insects logged in Kolkata (5 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.
