Gellonia dejectaria
In 3 days ~20% in a week ~40%
Gellonia dejectaria, the brown evening moth, is a species of moth in the family Geometridae. The species was first described by Francis Walker in 1860. It is endemic to New Zealand. Gellonia dejectaria larvae eat the leaves of the māhoe, supplejack and bush lawyer plants.
A male Gellonia dejectaria was originally described by Francis Walker as being slender bodied with a deep brown top and a yellow ashy colored underside and the middle leg segment of the back legs were thick. The antennae have narrow parallel projections like a comb going all the way to the tip (a trait only found in males). He described the wings being big and freckled with a dull brick-red color, having thin black lines on the inside and outside of the upper surface of the wing, having an almost black dot on the fore wing (larger wing) that has a white spot inside that dot. Another thing Walker noted was the presence of a wide band on the underside of the wing and brown dots on the undersides closer to the moth’s body.
The wingspan of the brown evening moth can get up to 2 inches (5.08 cm) in width. It also usually has a white dot in the middle of the outer edge of the forewing (larger wing). It... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Egmont National Park | 🇳🇿 New Zealand | |
| 2 | Abel Tasman National Park | 🇳🇿 New Zealand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Auckland | 🇳🇿 New Zealand |
With luck
About 10% of wildlife watchers report a Brown Evening Moth sighting in Auckland on a given day, based on 37 verified sightings from GBIF citizen-science data. It is the 184th most-seen of the 689 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.
June–July and September–March
In those months about 10% of wildlife watchers report a Brown Evening Moth in Auckland on a given day, against under 5% in April–May and August, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Brown Evening Moth sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Auckland, in our data
Auckland is the only city on Wallace's Line with enough records to rate Brown Evening Moth sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Brown Evening Moth is recorded against all the insects logged in Auckland (37 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.
