Orocrambus flexuosellus
In 3 days ~30% in a week ~60%
Orocrambus flexuosellus is a species of moth in the family Crambidae. It was first described by Edward Doubleday in 1843. O. flexuosellus is endemic to New Zealand. It has been recorded from the North Island, South Island and the Stewart Islands. The species' habitat consists of lowland to alpine grasslands.
The wingspan is 19–26 mm. Adults have been recorded on wing from November to February. Adults are nocturnal but are easily disturbed during daylight hours. The larvae are polyphagous, feeding on various grasses and sedges. Adults are attracted to light and have been collected via a mercury vapour light trap. The adult moths have been shown to pollinate Cassinia fulvida, Dracophyllum acerosum, Hoheria lyallii and Olearia virgata. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rakiura National Park | 🇳🇿 New Zealand | |
| 2 | Egmont National Park | 🇳🇿 New Zealand | |
| 3 | Arthur's Pass National Park | 🇳🇿 New Zealand | |
| 4 | Fiordland National Park | 🇳🇿 New Zealand | |
| 5 | Abel Tasman National Park | 🇳🇿 New Zealand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Auckland | 🇳🇿 New Zealand |
With luck
About 10% of wildlife watchers report a Common Grass Moth sighting in Fiordland National Park on a given day, based on 16 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 40th most-seen of the 201 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.
December and January
In those months about 20% of wildlife watchers report a Common Grass Moth in Fiordland National Park on a given day, against under 5% in March to October, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Common Grass Moth sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
4th of 5
Of the 5 parks where we can rate Common Grass Moth sightings, Fiordland National Park ranks 4th at about 10%. The best odds are in Rakiura National Park (New Zealand, about 20%), Egmont National Park (New Zealand, about 10%) and Arthur's Pass National Park (New Zealand, about 10%).
Same genus: Orocrambus
The closest relatives of the Common Grass Moth that you can see in Fiordland National Park (genus Orocrambus) are Orocrambus ramosellus (about 10%) and Orocrambus catacaustus (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Grass Moth is recorded against all the insects logged in Fiordland National Park (16 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.
