Nemobius sylvestris
In 3 days ~20% in a week ~50%
Nemobius sylvestris, the wood cricket, is a flightless species of cricket in the family Trigonidiidae. It is native to Western Europe and North Africa but uncommon in Britain. This cricket is a small, dark brown, ground-dwelling, grasshopper-like insect with long, thread-like antennae. It grows to about 1 cm (0.4 in). Neither males nor females have hind wings; in males the fore-wings extend half way along the abdomen, while in females, the fore-wings are reduced to rounded stubs. Females also have a long ovipositor at the tip of the abdomen.
The wood cricket is native to Europe and North Africa. Its range includes Western, Central and Southern Europe, Corsica, Algeria and Morocco. The natural habitat of this species is forest edges and woodland clearings, where it is associated with oak, beech, hazel and holly trees and with bracken. It thrives among the leaf litter in warm, sunny spots. It is uncommon in Britain, with three separate populations in the New Forest, the Isle of Wight and southern Devon. In 2001, following the clearance of coniferous woodland and rhododendron from a site near Offwell in eastern Devon, a new population appeared... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Pyrénées National Park | 🇫🇷 France | |
| 3 | Mercantour National Park | 🇫🇷 France | |
| 4 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 5 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 6 | Ecrins National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Wood Cricket sighting in Sierra de Guadarrama National Park on a given day, based on 33 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 106th most-seen of the 597 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 Wood Cricket in Sierra de Guadarrama National Park on a given day, against under 5% in March, May–June, August and December–January, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Wood Cricket sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 6
Of the 6 parks where we can rate Wood Cricket sightings, Sierra de Guadarrama National Park ranks 4th at about 10%. The best odds are in Cévennes National Park (France, about 20%), Pyrénées National Park (France, about 10%) and Mercantour National Park (France, about 10%).
Same order: Orthoptera
The closest relatives of the Wood Cricket that you can see in Sierra de Guadarrama National Park (order Orthoptera, Grasshoppers, Crickets, and Katydids) are Lluciapomaresius stalii (about 20%), Great Green Bush-Cricket (about 10%) and Portuguese Mountain Bush-Cricket (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Wood Cricket is recorded against all the insects logged in Sierra de Guadarrama National Park (33 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.
