Pergesa acteus
In 3 days ~10% in a week ~20%
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 |
Rare
Under 5% of wildlife watchers report a Green Pergesa Hawkmoth sighting in Hong Kong on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 731st most-seen of the 1125 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
August and September
In those months about 10% of wildlife watchers report a Green Pergesa Hawkmoth in Hong Kong on a given day, against under 5% in October to July, the lowest months. Those are among Hong Kong's wettest months, with about 190 mm of rain a month against 25 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.
13th of 14
Of the 14 cities where we can rate Green Pergesa Hawkmoth sightings, Hong Kong ranks 13th at under 5%. The best odds are in Thiruvananthapuram (India, about 20%), Johor Bahru (Malaysia, about 10%) and Kozhikode (India, about 10%).
Same family: Sphingidae
The closest relatives of the Green Pergesa Hawkmoth that you can see in Hong Kong (family Sphingidae, Sphinx Moths) are Dull Swirled Hawkmoth (about 10%), Fritz's Hummingbird Hawkmoth (about 10%) and Greater Death's Head Hawkmoth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Green Pergesa Hawkmoth is recorded against all the insects logged in Hong Kong (10 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.
