Crypsiphona ocultaria
In 3 days ~40% in a week ~70%
Crypsiphona ocultaria (erroneously as: Phalaena occultaria Guenée, 1857) the red-lined looper moth or red-lined geometer, is a moth of the family Geometridae. The species was first described by Edward Donovan in 1805 and it is found in Australia.
It is one of the most common moths found in Australia. The "red-lined" part of the name refers to the red markings seen on the undersides of the wings. The moth has a wingspan of 4-5 cm. Both sexes of the moth are similar in appearance. When threatened the grub stands still, pretending to be a stick.
As larvae it is a bluish-green with an off-white line on its sides. The larvae feed on eucalypt leaves. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hattah-Kulkyne National Park | 🇦🇺 Australia | |
| 2 | Great Otway National Park | 🇦🇺 Australia | |
| 3 | Booderee National Park | 🇦🇺 Australia | |
| 4 | Blue Mountains National Park | 🇦🇺 Australia | |
| 5 | Grampians National Park | 🇦🇺 Australia | |
| 6 | Lamington National Park | 🇦🇺 Australia | |
| 7 | Springbrook National Park | 🇦🇺 Australia | |
| 8 | Royal National Park | 🇦🇺 Australia |
Possible
About 20% of wildlife watchers report a Red-Lined Looper sighting in Perth on a given day, based on 120 verified sightings from GBIF citizen-science data. It is the 13th most-seen of the 275 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
December
In that month about 30% of wildlife watchers report a Red-Lined Looper in Perth on a given day, against about 10% in January, April and July–October, the lowest months. That is one of Perth's driest months, with about 10 mm of rain against 130 mm in July.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Red-Lined Looper sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 4 cities where we can rate Red-Lined Looper sightings, Perth has the highest daily chance: about 20%. Next come Melbourne (Australia, about 10%) and Sydney (Australia, about 10%).
Same family: Geometridae
The closest relatives of the Red-Lined Looper that you can see in Perth (family Geometridae, Geometer Moths) are Apple Looper (about 20%), Insigillated Pug (about 10%) and Pink-Bellied Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Red-Lined Looper is recorded against all the insects logged in Perth (120 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.
