Phengaris atroguttata
In 3 days ~20% in a week ~50%
Phengaris atroguttata, the great spotted blue, is a small butterfly found in India, Myanmar, and China that belongs to the lycaenids or blues family. The butterfly was earlier known as Polyommatus atroguttata (Oberthür).
It is found in Nagaland and the Chin Hills of Myanmar and is considered rare. Phengaris atroguttata atroguttata northwest India, west China and Taiwan Phengaris atroguttata juenana (Forster, 1940) Yunnan Phengaris atroguttata lampra (Röber, 1926) north Myanmar
Phengaris daitozana Wileman, 1911 The butterfly ranges from 44 to 48 mm. The butterfly is white with pale blue suffusion, and, also a dark border on the forewing. The male butterfly has very large black discal spots showing through from below. These are darkened in above in the case of the female butterfly.
List of butterflies of India (Lycaenidae) Beccaloni, George; Scoble, Malcolm; Kitching, Ian; Simonsen, Thomas; Robinson, Gaden; Pitkin, Brian; Hine, Adrian; Lyal, Chris. "The Global Lepidoptera Names Index (LepIndex)". Natural History Museum, London. Retrieved 2016-10-15.
Evans, W.H. (1932).... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taroko National Park | 🇹🇼 Taiwan |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Great Spotted Blue sighting in Taroko National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 240th most-seen of the 447 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 Great Spotted Blue in Taroko National Park on a given day, against under 5% in September to May, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Great Spotted Blue sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Taroko National Park, in our data
Taroko National Park is the only park on Wallace's Line with enough records to rate Great Spotted Blue sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Lycaenidae
The closest relatives of the Great Spotted Blue that you can see in Taroko National Park (family Lycaenidae, Gossamer-winged Butterflies) are Burmese Bushblue (about 20%), Common Line Blue (about 20%) and Celastrina oreas (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Great Spotted Blue is recorded against all the insects logged in Taroko National Park (8 verified sightings from 2019 to 2026), 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.
