Lethe rohria
In 3 days ~30% in a week ~60%
Lethe rohria, also known as the common treebrown, is a species of satyrine butterfly found in Asia. The forewings are coastal with two white periapical spots. The upper side towards the apex of the forewing is van Dyke brown. The hindwings are the ocelli (eyespots) of the underside showing through, sometimes forming two or three obscure black spots or two slender subterminal black lines. The underside is paler, shaded with dark brown. This includes more pronounced markings. The white discal band on forewing is prominent. The antennae, head, thorax and abdomen are brown, while antennas are periapically black at apex ochraceous.
Female upper side differs in having an oblique white, discal band on the forewing and a spot below its posterior end in interspace 1. The inner border of the band is bi-emarginate, while the outer is irregularly sinuous. Their upper side towards the apex of the forewing is van dyke brown, but darker than males.
L. rohria inhabit the Himalayas from India, Uttarakhand, Sikkim and Assam. This also includes Bhutan, Myanmar (Tenasserim), extending to China. The male differs only from the male of the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pune | 🇮🇳 India |
With luck
About 10% of wildlife watchers report a Common Treebrown sighting in Pune on a given day, based on 63 verified sightings from GBIF citizen-science data. It is the 58th most-seen of the 340 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
October
In that month about 30% of wildlife watchers report a Common Treebrown in Pune on a given day, against under 5% in February to June, the lowest months.
Only Pune, in our data
Pune is the only city on Wallace's Line with enough records to rate Common Treebrown sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Common Treebrown is recorded against all the insects logged in Pune (63 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.
