Cigaritis vulcanus
In 3 days ~40% in a week ~70%
Cigaritis vulcanus, the common silverline, is a species of lycaenid or blue butterfly found in Asia. It was first described by Johan Christian Fabricius in 1775. Male. Upperside dark brown, with a more or less violet tinge. Forewing usually with three short orange-red transverse bands in the upper part of the wing, these bands are of various lengths in different specimens, and all descend from near the costa downwards, the sub-apical band the shortest, the discal band the longest, in some examples there is an orange- red sub-basal mark, and another on the costa at its middle, and there is also an indication of a sub-marginal band. Hindwing with an anal orange-red patch, which in most examples narrows upwards for a short distance sub-marginally, a small black spot in the anal lobe, another on the margin between the two tails, both with some silvery-blue scales attached to them; tails black, with minute white tips, the orange-red colour of the anal patch running half way up both of them; both wings with black outer marginal line and whitish cilia with a black base. Underside pale whitish-sulphury-yellow, bands red-brown edged with dark In-own, with inner silvery macular... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Salem | 🇮🇳 India | |
| 2 | Prayagraj | 🇮🇳 India | |
| 3 | Bhubaneshwar | 🇮🇳 India | |
| 4 | Kolkata | 🇮🇳 India | |
| 5 | New Delhi | 🇮🇳 India | |
| 6 | Coimbatore | 🇮🇳 India | |
| 7 | Pune | 🇮🇳 India | |
| 8 | Mumbai | 🇮🇳 India | |
| 9 | Bengaluru | 🇮🇳 India |
Possible
About 20% of wildlife watchers report a Common Silverline sighting in New Delhi on a given day, based on 81 verified sightings from GBIF citizen-science data. It is the 32nd most-seen of the 174 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.
September
In that month about 30% of wildlife watchers report a Common Silverline in New Delhi on a given day, against under 5% in December to April, the lowest months. That is one of New Delhi's wettest months, with about 120 mm of rain against almost none in November.
5th of 9
Of the 9 cities where we can rate Common Silverline sightings, New Delhi ranks 5th at about 20%. The best odds are in Salem (India, about 40%), Prayagraj (India, about 20%) and Bhubaneshwar (India, about 20%).
Same family: Lycaenidae
The closest relatives of the Common Silverline that you can see in New Delhi (family Lycaenidae, Gossamer-winged Butterflies) are Plains Cupid (about 30%), Pale Grass Blue (about 20%) and Red Pierrot (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Silverline is recorded against all the insects logged in New Delhi (81 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.
