Pergesa acteus
In 3 days ~20% in a week ~50%
Pergesa is a monotypic genus of moth in the family Sphingidae first described by Francis Walker in 1856. Its only species, Pergesa acteus, the green pergesa hawkmoth, was described by Pieter Cramer in 1779. It is found in Sri Lanka, India, Nepal, Myanmar, Thailand, eastern and southern China, Taiwan, Japan (the Ryukyu Archipelago), Peninsular Malaysia, Indonesia (Sumatra, Java, Sulawesi) and the Philippines.
The wingspan is 64–80 mm. Head, thorax and abdomen are purplish grey, which differs from Theretra nessus. Vertex of head and a dorso-lateral stripe to thorax and abdomen is green. Forewings are purplish grey with a green oblique central area from below apex to inner margin with some indistinct lines on it. There is an irregular dark outer area with some yellow inside it. Hindwings with anal patch and submarginal band are pointed.
Larvae are greenish with a dark dorsal line, and a subdorsal pale line on thoracic somites. The fourth somite has a large ocellus, which is white ringed with brown and centered with blue and green. The ocelli on the fifth to tenth somites are bluish with yellow centers. Lateral area is greenish and horn is yellowish... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kaeng Krachan National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Thiruvananthapuram | 🇮🇳 India | |
| 2 | Johor Bahru | 🇲🇾 Malaysia | |
| 3 | Kozhikode | 🇮🇳 India | |
| 4 | Thrissur | 🇮🇳 India | |
| 5 | Kochi | 🇮🇳 India | |
| 6 | Colombo [Sri Jayawardenepura Kotte] | 🇱🇰 Sri Lanka | |
| 7 | Bangkok | 🇹🇭 Thailand | |
| 8 | Taipei | 🇹🇼 Taiwan | |
| 9 | Manila | 🇵🇭 Philippines | |
| 10 | Jakarta | 🇮🇩 Indonesia |
With luck
About 10% of wildlife watchers report a Green Pergesa Hawkmoth sighting in Bangkok on a given day, based on 55 verified sightings from GBIF citizen-science data. It is the 45th most-seen of the 245 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 Green Pergesa Hawkmoth in Bangkok on a given day, against under 5% in February and April–May, the lowest months. That is one of Bangkok's wettest months, with about 170 mm of rain against 10 mm in December.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Green Pergesa Hawkmoth sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
7th of 14
Of the 14 cities where we can rate Green Pergesa Hawkmoth sightings, Bangkok ranks 7th at about 10%. The best odds are in Thiruvananthapuram (India, about 20%), Johor Bahru (Malaysia, about 10%) and Kozhikode (India, about 10%).
GBIF citizen-science records
It is estimated from how often the Green Pergesa Hawkmoth is recorded against all the insects logged in Bangkok (55 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.
