Polistes jokahamae
In 3 days ~40% in a week ~70%
The dark-waisted paper wasp, (Polistes jokahamae) is a species of primitively eusocial paper wasp from Southeast Asia. The dark-waisted paper wasp is found in Japan (excepting the island of Hokkaido), China, India, and Vietnam.
Queens emerge from diapause in late March. New nests are founded from mid-April to early May. Nests most often have a single founding queen; multiple foundresses are found in less than 1% of P. jokahamae colonies. Like other Polistes wasps, the dark-waisted paper wasp constructs nests of chewed plant fibers mixed with proteinaceous oral secretions.
Nests consist of multiple cells in which the queen lays her eggs. The cells are then capped with a silky material produced by the queen and the larvae develop inside. The first brood are fed and cared for by the queen. Two larvae are raised in each cell in the first brood (presumably to conserve resources) and the workers emerge smaller than those from later broods.
The first worker emerge in the summer, followed by a second brood which includes gynes (potential future queens) and a third brood which includes males. Rarely, males may be produced earlier in the colonies' lifecycle... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Dark-Waisted Paper Wasp sighting in Osaka on a given day, based on 86 verified sightings from GBIF citizen-science data. It is the 20th most-seen of the 352 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
July
In that month about 30% of wildlife watchers report a Dark-Waisted Paper Wasp in Osaka on a given day, against under 5% in January and February, the lowest months. That is one of Osaka's wettest months, with about 200 mm of rain against 55 mm in January.
2nd of 8
Of the 8 cities where we can rate Dark-Waisted Paper Wasp sightings, Osaka ranks 2nd at about 20%. The best odds are in Nagoya (Japan, about 30%).
GBIF citizen-science records
It is estimated from how often the Dark-Waisted Paper Wasp is recorded against all the insects logged in Osaka (86 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.
