Wiseana umbraculatus
In 3 days ~70% in a week ~90%
Wiseana umbraculata, also known as the bog porina, is a species of moth belonging to the family Hepialidae. This species was regarded as being common in Whanganui in the early twentieth century. The wingspan is 38–50 mm for males and 49–66 mm for females. Adults are on wing from September to April. Adult male and female bog porina can be told apart as the males are much darker in colour and have noticeable dark spots on their forewings. The females are lighter in colour with brown dots on their forewings. Caterpillars of W. umbraculata have a brown head with a dirty white and grey body. Without DNA technology, it is not possible to tell the different species of porina apart at the larval/caterpillar stage.
Bog porina occur throughout New Zealand; however, they are uncommon in the northern half of the North Island. W. umbraculata occupy habitats ranging from alpine regions to lowland plains. They are distributed from the central North Island to the bottom of the South Island. The larvae live in pasture, and can be very damaging. The preferred habitat for eggs and caterpillars is long dense pasture. They thrive in warm, moist conditions. Very hot,... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rakiura National Park | 🇳🇿 New Zealand | |
| 2 | Fiordland National Park | 🇳🇿 New Zealand |
Possible
About 30% of wildlife watchers report a Bog Porina sighting in Rakiura National Park on a given day, based on 55 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 118 insects we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
November
In that month about 60% of wildlife watchers report a Bog Porina in Rakiura National Park on a given day, against under 5% in March–July and September–October, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Bog Porina sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Yes
Of the 2 parks where we can rate Bog Porina sightings, Rakiura National Park has the highest daily chance: about 30%. Next come Fiordland National Park (New Zealand, about 10%).
GBIF citizen-science records
It is estimated from how often the Bog Porina is recorded against all the insects logged in Rakiura National Park (55 verified sightings from 2019 to 2026), 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.
