Amata passalis
In 3 days ~50% in a week ~80%
Amata passalis, the sandalwood defoliator, is a moth of the family Erebidae first described by Johan Christian Fabricius in 1781. It is found in Sri Lanka and India. The average life cycle of the species in captivity is 62 days. After mating, the adult female lays about 305 eggs in a lifespan of 3.87 days. It is known to breed all year around and passes through 6-11 generations a year. There are eight larval instars. First and last instar larvae are about 1.97 mm and 29.29 mm in length, respectively. Adults usually emerge within 1 to 2 hours of sunrise. After a day, they are ready for mating.
It is known mainly as a defoliator of sandalwood (Santalum album) in India. It is also recorded on various alternate food plants, mainly cowpeas, various other pulses, and ornamental plants. The larval stage of Apanteles nepitae can be used as a parasite to control the moth.
Phaseolus vulgaris Santalum album Trichosanthes anguina Vigna unguiculata Capsicum annuum Brassica caulorapa Capsicum annuum Phaseolus vulgaris Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sundarbans National Park | 🇮🇳 India | |
| 2 | Minneriya National Park | 🇱🇰 Sri Lanka |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Thiruvananthapuram | 🇮🇳 India | |
| 2 | Coimbatore | 🇮🇳 India | |
| 3 | Prayagraj | 🇮🇳 India | |
| 4 | Kollam | 🇮🇳 India | |
| 5 | Surat | 🇮🇳 India | |
| 6 | Chennai | 🇮🇳 India | |
| 7 | Colombo [Sri Jayawardenepura Kotte] | 🇱🇰 Sri Lanka | |
| 8 | Ponnani | 🇮🇳 India | |
| 9 | Bhubaneshwar | 🇮🇳 India | |
| 10 | Madurai | 🇮🇳 India |
Possible
About 20% of wildlife watchers report a Sandalwood Defoliator sighting in Ahmedabad on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 12th most-seen of the 52 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
June
In that month about 40% of wildlife watchers report a Sandalwood Defoliator in Ahmedabad on a given day, against under 5% in February–April and November, the lowest months. That is one of Ahmedabad's wettest months, with about 95 mm of rain against almost none in January.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Sandalwood Defoliator sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
20th of 23
Of the 23 cities where we can rate Sandalwood Defoliator sightings, Ahmedabad ranks 20th at about 20%. The best odds are in Thiruvananthapuram (India, about 40%), Coimbatore (India, about 40%) and Prayagraj (India, about 40%).
Same family: Erebidae
The closest relatives of the Sandalwood Defoliator that you can see in Ahmedabad (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Dot-Underwing Moth (about 20%) and Castor Semi-Looper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sandalwood Defoliator is recorded against all the insects logged in Ahmedabad (12 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.
