Caedicia simplex
In 3 days ~20% in a week ~40%
Caedicia simplex is a species of bush cricket or katydid, native to New Zealand and Australia. A common name is the "common garden katydid". Species found in the family Tettigoniidae are differentiated from other ensifera by the presence of forewings that can be held away from the body modified to help with both leaf mimicry and acoustics, as well as the female ovipositor. Generally speaking, katydids have extremely long antennae in proportion to their body size, as well as a body that is cylindrical or laterally compressed with 3 sets of long, spindly legs that are used for long-distance jumping. Among all katydids, Caedicia simplex is considered an unremarkable species in appearance. The common garden katydid strongly resembles a small leaf in appearance with a grass-like, green coloration, measuring at about 4–6 cm as an adult. In the nymph stage, however, C. simplex are sometimes a vibrant red-pink color, lacking the leaf-like appearance of their adult counterparts. Caedicia simplex has a distinctly small, oval head with a velvety green appearance and bright, orange-red eyes. The velvety pronotum on common garden katydids are distinctly keeled, marked with a yellow... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Egmont National Park | 🇳🇿 New Zealand | |
| 2 | Abel Tasman National Park | 🇳🇿 New Zealand | |
| 3 | Blue Mountains National Park | 🇦🇺 Australia | |
| 4 | Great Otway National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report an Australian Common Garden Katydid sighting in Blue Mountains National Park on a given day, based on 15 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 294th most-seen of the 789 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.
February–May, August and November
In those months about 10% of wildlife watchers report an Australian Common Garden Katydid in Blue Mountains National Park on a given day, against under 5% in June–July, September–October and December–January, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Australian Common Garden Katydid 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.
Among the best
Of the 4 parks where we can rate Australian Common Garden Katydid sightings, Blue Mountains National Park ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Egmont National Park (New Zealand, about 10%) and Abel Tasman National Park (New Zealand, about 10%).
Same family: Tettigoniidae
The closest relatives of the Australian Common Garden Katydid that you can see in Blue Mountains National Park (family Tettigoniidae, Katydids) are Olive-Green Coastal Katydid (about 10%), Blackish Meadow Katydid (about 10%) and Sydney Woodland Katydid (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Australian Common Garden Katydid is recorded against all the insects logged in Blue Mountains National Park (15 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.
