Diacamma rugosum
In 3 days ~20% in a week ~50%
Diacamma rugosum, also known as the Bornean queenless ant or Asian bullet ant, is a species of ant of the subfamily Ponerinae. It is found in many countries throughout Southeast Asia. 20 subspecies are recognized. Diacamma rugosum is noted for being one of the only species of ants to completely lack a queen caste. Reproduction is done entirely by workers, with all workers being fertile upon birth. However, reproduction is kept strictly under control in the nest, with only one dominant female, or gamergate, laying all of the eggs. The gamergate will render workers sterile by mutilating their vestigial wing buds as soon as they pupate. These infertile workers, called callows, will remain loyal to the present gamergate and allow her to exercise control over the rest of the workers. This works to reduce colony infighting as it makes usurpation virtually impossible, and the only time the gamergate is replaced is if she dies naturally. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Colombo [Sri Jayawardenepura Kotte] | 🇱🇰 Sri Lanka | |
| 2 | Zhuhai [Macau] | 🇨🇳 China | |
| 3 | Kochi | 🇮🇳 India | |
| 4 | Jakarta | 🇮🇩 Indonesia | |
| 5 | Hong Kong | 🇨🇳 China | |
| 6 | Guangzhou | 🇨🇳 China | |
| 7 | Singapore | 🇸🇬 Singapore |
With luck
About 10% of wildlife watchers report a Bornean Queenless Ant sighting in Colombo [Sri Jayawardenepura Kotte] on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 114th most-seen of the 182 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.
April
In that month about 20% of wildlife watchers report a Bornean Queenless Ant in Colombo [Sri Jayawardenepura Kotte] on a given day, against under 5% in June, September and November–February, the lowest months.
Yes
Of the 7 cities where we can rate Bornean Queenless Ant sightings, Colombo [Sri Jayawardenepura Kotte] has the highest daily chance: about 10%. Next come Zhuhai [Macau] (China, about 10%) and Kochi (India, about 10%).
Same family: Formicidae
The closest relatives of the Bornean Queenless Ant that you can see in Colombo [Sri Jayawardenepura Kotte] (family Formicidae, Ants) are Asian Weaver Ant (about 40%), Yellow Crazy Ant (about 20%) and Common Oriental Trap-Jaw Ant (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bornean Queenless Ant is recorded against all the insects logged in Colombo [Sri Jayawardenepura Kotte] (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.
