Bradinopyga geminata
In 3 days ~40% in a week ~70%
Bradinopyga geminata is a species of dragonfly in the family Libellulidae known commonly as the granite ghost. It is native to India, Sri Lanka and Thailand, where it is a common and widespread species. It is a medium sized dragonfly with brown-capped grey eyes. Its thorax is cinereous, marbled and peppered with black in a very irregular manner. Wings are transparent with dual color pterostigma, black at centre and pure white at distal and proximal ends. Abdomen is coloured very similarly to thorax; black marbled with yellow, but with a more definite plan. Segments 3 to 8 have pale basal annules interrupted on dorsum, and formed by two elongate parallel spots. There is a triangular apical sub-dorsal spot and a pale mid-dorsal spot. Anal appendages are creamy-white. Female is similar to the male.
Taking advantage of its cryptic coloration, it often perches flat on vertical rock faces or cement-plastered walls, where it becomes quite hard to spot once at rest. It is among the most widespread dragonflies in the Indian Subcontinent and is found across many types of habitats. It's one of the few species that seem to thrive in urban environments as well, where... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Minneriya National Park | 🇱🇰 Sri Lanka |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Granite Ghost sighting in Kolkata on a given day, based on 34 verified sightings from GBIF citizen-science data. It is the 65th most-seen of the 213 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
October
In that month about 30% of wildlife watchers report a Granite Ghost in Kolkata on a given day, against under 5% in March, June and December, the lowest months.
Between midnight and 3 am
Across all the parks we cover, that three-hour window holds the most Granite Ghost sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
20th of 27
Of the 27 cities where we can rate Granite Ghost sightings, Kolkata ranks 20th at about 10%. The best odds are in Jodhpur (India, about 40%), Prayagraj (India, about 40%) and Rajkot (India, about 40%).
Same family: Libellulidae
The closest relatives of the Granite Ghost that you can see in Kolkata (family Libellulidae, Skimmers) are Scarlet Skimmer (about 40%), Ditch Jewel (about 40%) and Pied Paddy Skimmer (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Granite Ghost is recorded against all the insects logged in Kolkata (34 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.
