Orange Underwing

Orange Underwing

Paranotoreas brephosata

Endemic
Daily sighting probability ~10% · With luck
at Egmont National Park

In 3 days ~30% in a week ~60%

10 Verified sightings at Egmont National Park From 2019 to 2026
34 In all 3 parks
February Best month
☀️ Diurnal When it's spotted

About the Orange Underwing

Paranotoreas brephosata is a species of moth in the family Geometridae. This species is endemic to New Zealand. This species was first described by Francis Walker in 1862 and given the name Fidonia brephosata. George Hudson discussed and illustrated this species in his 1898 book New Zealand Moths and Butterflies (Macro-lepidoptera) and his 1928 book The Butterflies and Moths of New Zealand under the name Notoreas brephos. In 1986 Robin C. Craw proposed placing this species within the genus Paranotoreas. The lectotype specimen is held at the Natural History Museum, London.

Hudson described the species as follows: The expansion of the wings is about 1 inch. The fore-wings are dark grey; there is a wavy black line near the base, two similar lines enclosing a very broad central area, with a black dot a little above the middle; beyond this there is a more or less distinct wavy band of pale grey or brown; there are several obscure wavy blackish lines near the termen. The hind-wings are bright orange, dotted with grey near the base and dorsum, with from two to four more or less distinct wavy black transverse lines, generally rather narrow; the termen is moderately... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Arthur's Pass National Park 🇳🇿 New Zealand
~20%
2 Egmont National Park 🇳🇿 New Zealand
~10%
3 Fiordland National Park 🇳🇿 New Zealand
~10%

Before you go

What are the chances of seeing an Orange Underwing in Egmont National Park?

With luck

About 10% of wildlife watchers report an Orange Underwing sighting in Egmont National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 53rd most-seen of the 191 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.

When is the best time to see an Orange Underwing in Egmont National Park?

February

In that month about 30% of wildlife watchers report an Orange Underwing in Egmont National Park on a given day, against under 5% in April to November, the lowest months.

What time of day is best to see an Orange Underwing?

Between noon and 3 pm

Across all the parks we cover, that three-hour window holds the most Orange Underwing sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Egmont National Park the best place to see an Orange Underwing?

2nd of 3

Of the 3 parks where we can rate Orange Underwing sightings, Egmont National Park ranks 2nd at about 10%. The best odds are in Arthur's Pass National Park (New Zealand, about 20%).

Which relatives of the Orange Underwing live in Egmont National Park?

Same family: Geometridae

The closest relatives of the Orange Underwing that you can see in Egmont National Park (family Geometridae, Geometer Moths) are Forest Semilooper (about 20%), Oblique-Waved Fern Looper (about 20%) and Common Forest Looper (about 20%), with each one's daily chance of a sighting.

Where does the Orange Underwing sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Orange Underwing is recorded against all the insects logged in Egmont National Park (10 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.

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