Gangara thyrsis
In 3 days ~20% in a week ~50%
Gangara thyrsis, commonly known as the giant redeye, is a species of butterfly belonging to the family Hesperiidae. It breeds on a number of palm species. The male and female are dark chocolate brown. With a forewing consisting of bright yellow semi-transparent quadrate spots disposed triangularly, the first is large and occupying half the cell, the second also large, obliquely beneath and partly beyond, the third small and obliquely above the second; above the last are three smaller spots obliquely before the apex, the two upper being geminated; in some specimens beneath the subapical spots is a small dot, and on the posterior margin another, both similar to the rest; cilia at posterior angle brownish-white; hindwing with the cilia at the anterior angle brownish white. Underside, forewing irrorated (sprinkled) with grey scales near the apex, posterior margin pale brownish-white, spots yellow as above; hindwing irrorated with grey scales in a series of bands across the wing.
The male of this species presents, on the upperside of each anterior wing, three lines of modified scales, namely, one along the posterior side of the median vein between the origins of its first... Wikipedia →
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Giant Redeye sighting in Kollam on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 69th most-seen of the 92 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Giant Redeye in Kollam on a given day, against under 5% in October to June, the lowest months. That is one of Kollam's wettest months, with about 240 mm of rain against 15 mm in January.
Among the best
Of the 7 cities where we can rate Giant Redeye sightings, Kollam ranks 6th at about 10%, level with the leaders once rounded. The best odds are in Thiruvananthapuram (India, about 10%), Kochi (India, about 10%) and Bengaluru (India, about 10%).
Same family: Hesperiidae
The closest relatives of the Giant Redeye that you can see in Kollam (family Hesperiidae, Skippers) are Chestnut Bob (about 10%), Grass Demon (about 10%) and Common Redeye (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Giant Redeye is recorded against all the insects logged in Kollam (6 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.
