Tachypompilus analis
In 3 days ~20% in a week ~40%
Tachypompilus analis, the red-tailed spider wasp is a species of spider wasp found in most of tropical and subtropical Asia, north to Japan. These spider wasps often hunt huntsman spiders. T. analis is a medium-sized to large wasp with females in mainland China measuring between 16 and 21 mm, while the smaller males measure 11 mm in length; island populations tend to be smaller. It is almost completely black except for the last four, in females, or last five, in males, metasomal segments, which are bright orange or red and give rise to the common name, red-tailed spider wasp.
T. anailis preys on spiders from the families Sparassidae, Agelenidae, and Amaurobiidae. In Japan, Heteropoda venatoria has been recorded being preyed on by this species. The wasp can easily penetrate the most complex webs and the prey is flushed and pursued; the web does provide some protection for the spider, but the wasp persists in attacking until the spider drops out of the web to the ground, where the wasp stings and paralyses the spider. Once captured, the prey is dragged backwards by its pedipalps, sometimes leaving the prey to inspect either the route or the nest at which... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taroko National Park | 🇹🇼 Taiwan |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Asian Red-Tailed Spider Wasp sighting in Tuen Mun on a given day, based on 15 verified sightings from GBIF citizen-science data. It is the 242nd most-seen of the 557 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
April–August and October
In those months about 10% of wildlife watchers report an Asian Red-Tailed Spider Wasp in Tuen Mun on a given day, against under 5% in September and November–March, the lowest months. Those are among Tuen Mun's wettest months, with about 190 mm of rain a month against 20 mm in December.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Asian Red-Tailed Spider Wasp sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 7 cities where we can rate Asian Red-Tailed Spider Wasp sightings, Tuen Mun has the highest daily chance: about 10%. Next come Kolkata (India, about 10%) and Hong Kong (China, under 5%).
Same family: Pompilidae
The closest relatives of the Asian Red-Tailed Spider Wasp that you can see in Tuen Mun (family Pompilidae, Spider Wasps) are Macromerella honesta (about 10%), Yellow-Headed Spider-Hunting Wasp (about 10%) and Parabatozonus maculifrons (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Asian Red-Tailed Spider Wasp is recorded against all the insects logged in Tuen Mun (15 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.
