Yersinella raymondii
In 3 days ~20% in a week ~50%
Yersinella raymondii, also known as Raymond's bush-cricket, is a species of "katydids crickets" belonging to the family Tettigoniidae subfamily Tettigoniinae. The scientific name Yersinella comes from the name of the entomologist who has described the species in 1860.
This quite common cricket is mainly present in Albania, Austria, Bosnia and Herzegovina, Croatia, France, Hungary, Romania, Italy, Greece, Serbia, Slovakia, Slovenia, Spain and Switzerland. These "katydids crickets" mainly inhabit forest edges, open forests and Mediterranean shrubland, at an elevation up to 1,600 metres (5,250 ft) above sea level. They prefer shrubs and low herbaceous plants or soil, rather than tall grasses. As a matter of fact they live in hilly and mountainous areas, in the margins of forests and woodlands, as well in open areas with plenty of vegetation.
Yersinella raymondii is rather small species, the adults grow up to about 12–16 millimetres (0.47–0.63 in) long, while females reach a maximum of 25–26 millimetres (0.98–1.02 in), including the relatively conspicuous, slightly and evenly bent upwards ovipositor (about 8–11 millimetres (0.31–0.43 in... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Raymond's Bush-Cricket sighting in Cévennes National Park on a given day, based on 20 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 329th most-seen of the 996 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
September and November
In those months about 20% of wildlife watchers report a Raymond's Bush-Cricket in Cévennes National Park on a given day, against under 5% in December to May, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Raymond's Bush-Cricket sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Cévennes National Park, in our data
Cévennes National Park is the only park on Wallace's Line with enough records to rate Raymond's Bush-Cricket sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Tettigoniidae
The closest relatives of the Raymond's Bush-Cricket that you can see in Cévennes National Park (family Tettigoniidae, Katydids) are Western Saddle Bush-Cricket (about 30%), Great Green Bush-Cricket (about 30%) and Wart-Biter (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Raymond's Bush-Cricket is recorded against all the insects logged in Cévennes National Park (20 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.
