Acherontia styx
In 3 days ~10% in a week ~30%
Acherontia styx, the lesser death's head hawkmoth or bee robber, is a sphingid moth found in Asia, one of the three species of death's-head hawkmoth. It is very fond of honey, and beekeepers have reported finding dead moths in their hives as a result of bee stings. They can mimic the scent of bees so that they can enter a hive unharmed to get honey. Their tongue, which is stout and very strong, enables them to pierce the wax cells of the beehive and suck the honey out. They are also known to be a pest of yuzu (Citrus junos) in South Korea, using their tongue to pierce and damage the fruit.
This species is similar to the European A. atropos but differs in having two medial bands on the underside of the forewing, instead of one, and usually no dark bands across the ventral surface of the abdomen. The skull-like marking is darker and there is a faint blue tornal dot enclosed by a black submarginal band on the hindwing upperside. The forewing discal spot (stigma) is orange; in A. atropos it is usually white. Wikipedia →
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report an Eastern Death's Head Hawkmoth sighting in Bangkok on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 137th most-seen of the 245 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May, September and November
In those months about 10% of wildlife watchers report an Eastern Death's Head Hawkmoth in Bangkok on a given day, against under 5% in June–August, October and December–April, the lowest months. Those are among Bangkok's wettest months, with about 160 mm of rain a month against 10 mm in December.
14th of 15
Of the 15 cities where we can rate Eastern Death's Head Hawkmoth sightings, Bangkok ranks 14th at under 5%. The best odds are in Jodhpur (India, about 30%), Doha (Qatar, about 20%) and Vadodara (India, about 20%).
Same family: Sphingidae
The closest relatives of the Eastern Death's Head Hawkmoth that you can see in Bangkok (family Sphingidae, Sphinx Moths) are Oleander Hawkmoth (about 10%) and Green Pergesa Hawkmoth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Eastern Death's Head Hawkmoth is recorded against all the insects logged in Bangkok (11 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.
