Dumbletonius unimaculata
In 3 days ~20% in a week ~50%
Dumbletonius unimaculatus, also known as the forest ghost moth, is a species of moth of the family Hepialidae. It is endemic to New Zealand. This species is host to the vegetable caterpillar fungus Ophiocordyceps robertsii.
This species was first described in 1948 by John T. Salmon as Porina unimaculata from specimens collected by Graham Turbott on the Three Kings Islands. In 1966 Dumbleton moved the species to a new genus and gave the new combination as Trioxycanus unimaculatus, the species name being made masculine to agree with the new genus. John Dugdale created the genus Dumbletonius in 1986, and moved this species into it in 1994, synonymising Dumbletomius sylvicola with it in the process. The male holotype specimen is held at the Auckland War Memorial Museum.
The wingspan is 51–67 mm for males and 74–90 mm for females. The colour pattern of the forewings is complex in males and usually reduced or obsolete in female. The hindwings are unicolorous yellow, orange-yellow or pink. The bright colouration of the hindwing of the male of the species fades rapidly after death.
Dumbletonius unimaculatus is endemic to New Zealand and... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Egmont National Park | 🇳🇿 New Zealand |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Dumbletonius unimaculata sighting in Egmont National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 153rd most-seen of the 191 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.
January
In that month about 20% of wildlife watchers report a Dumbletonius unimaculata in Egmont National Park on a given day, against under 5% in March to November, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Dumbletonius unimaculata sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Egmont National Park, in our data
Egmont National Park is the only park on Wallace's Line with enough records to rate Dumbletonius unimaculata sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Dumbletonius unimaculata is recorded against all the insects logged in Egmont National Park (5 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.
