Delta esuriens
In 3 days ~30% in a week ~50%
Delta esuriens is a species of potter wasp found in tropical Asia, belonging to the Vespidae family. They can be separated from the similar looking Delta pyriforme by the presence of a yellow band on the metasomal petiole segment.
Female Delta esuriens build a nest of mud with 1-8 cells adjacent to each other in 1 or 2 rows with their entrance holes pot-like which are provisioned with lepidopteran caterpillars before an egg is laid and the entrance hole sealed. The egg hangs from the cell wall, suspended by a bit of silk. About 3 to 10 caterpillars may be placed in a single cell. The eggs hatch in a couple of days and feed for a week. Pupation takes about two weeks. Male offspring have a slightly shorter development time and emerge earlier. The adults emerge from the cells in about a month. The larvae are parasitized by Chrysididae and Bombyliidae and preyed on by Sarcophagidae and ants. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Phnom Penh | 🇰🇭 Cambodia | |
| 2 | Naha | 🇯🇵 Japan | |
| 3 | Ho Chi Minh City | 🇻🇳 Vietnam | |
| 4 | Bangkok | 🇹🇭 Thailand | |
| 5 | Dubai | 🇦🇪 United Arab Emirates | |
| 6 | Colombo [Sri Jayawardenepura Kotte] | 🇱🇰 Sri Lanka | |
| 7 | Hyderabad | 🇮🇳 India | |
| 8 | Mumbai | 🇮🇳 India | |
| 9 | Tuen Mun | 🇨🇳 China | |
| 10 | Kochi | 🇮🇳 India |
With luck
About 10% of wildlife watchers report an Okinawa Mud Wasp sighting in Bangkok on a given day, based on 68 verified sightings from GBIF citizen-science data. It is the 32nd most-seen of the 245 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
June to August
In those months about 20% of wildlife watchers report an Okinawa Mud Wasp in Bangkok on a given day, against under 5% in December to April, the lowest months. Those are among Bangkok's wettest months, with about 170 mm of rain a month against 10 mm in December.
4th of 17
Of the 17 cities where we can rate Okinawa Mud Wasp sightings, Bangkok ranks 4th at about 10%. The best odds are in Phnom Penh (Cambodia, about 20%), Naha (Japan, about 20%) and Ho Chi Minh City (Vietnam, about 10%).
GBIF citizen-science records
It is estimated from how often the Okinawa Mud Wasp is recorded against all the insects logged in Bangkok (68 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.
