Ctenomorpha marginipennis
In 3 days ~30% in a week ~50%
Ctenomorpha marginipennis, the margin-winged stick insect, is a species of stick insect endemic to southern Australia. The species was first described by George Robert Gray in 1833, then placed in the genus Didymuria by Kirby in 1904.
It was subsequently accepted as "Ctenomorpha chronus (Gray, 1833)". C. marginipennis resembles a eucalyptus twig and can grow up to 20 cm in length. The males are long and slender, have full wings and can fly. The females are larger with blackish hindwings. The wings of the females are smaller than those of the males. The legs and head (prothorax) are light pinkish brown, with the legs being dentated. The mesothorax, tegmina, abdomen and leaflets, are all blackish green. The mesothorax may have small tubercles. The abdomen contains numerous small spots. The cerci are extremely long and may be somewhat dentated. The nymphs are similar to the older stage, but with only small wing buds instead of the full-length wings of the adults. This species can be distinguished from other members of the family by their extremely long cerci and by the appearance of their eggs.
This species is quite common in heaths and... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Blue Mountains National Park | 🇦🇺 Australia | |
| 2 | Royal National Park | 🇦🇺 Australia | |
| 3 | Springbrook National Park | 🇦🇺 Australia | |
| 4 | Booderee National Park | 🇦🇺 Australia | |
| 5 | Wilsons Promontory National Park | 🇦🇺 Australia | |
| 6 | Kosciuszko National Park | 🇦🇺 Australia | |
| 7 | Great Otway National Park | 🇦🇺 Australia | |
| 8 | Lamington National Park | 🇦🇺 Australia |
No species of the same family or order lives in Wilsons Promontory National Park, so these are its closest relatives here: other insects.
With luck
About 10% of wildlife watchers report a Margin-Winged Stick Insect sighting in Wilsons Promontory National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 38th most-seen of the 60 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
February, April and October
In those months about 20% of wildlife watchers report a Margin-Winged Stick Insect in Wilsons Promontory National Park on a given day, against under 5% in March, May–September and December–January, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Margin-Winged Stick Insect 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.
5th of 8
Of the 8 parks where we can rate Margin-Winged Stick Insect sightings, Wilsons Promontory National Park ranks 5th at about 10%. The best odds are in Blue Mountains National Park (Australia, about 20%), Royal National Park (Australia, about 20%) and Springbrook National Park (Australia, about 10%).
GBIF citizen-science records
It is estimated from how often the Margin-Winged Stick Insect is recorded against all the insects logged in Wilsons Promontory National Park (6 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.
