Isophya costata
In 3 days ~20% in a week ~30%
Isophya costata, the keeled plump bush-cricket or Hungarian tarsza, is a species of bush-cricket in the family Tettigoniidae, endemic to the Pannonian Basin. The body length of the Hungarian tarsza is 19–24 mm (0.75–0.94 in) in males and 22–26 mm (0.87–1.02 in) in females, with an additional 14–16 mm (0.55–0.63 in) ovipositor in females. It is one of the largest representatives of its genus. Its base colour is green. A white line runs backward from the eye along the edges of the pronotum and through the margin of the wing to the wing's tip. At the end of the pronotum, the white line is accompanied on the inside by a reddish-brown stripe. The top of the forehead is considerably wider than in other Isophya species, roughly corresponding to the length of the first antennal segment. The antennae are long, yellow in the first third and green thereafter. The wings are vestigial and scale-like; in the male, the visible wing length is slightly shorter than that of the pronotum, while in the female the wing length is about half that of the pronotum. The male's tegmen is asymmetrical: viewed from above, the left wing is triangular and brownish, with two strong green cross-veins... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Budapest | 🇭🇺 Hungary |
With luck
About 10% of wildlife watchers report a Keeled Plump Bush-Cricket sighting in Budapest on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 306th most-seen of the 404 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
April and May
In those months about 10% of wildlife watchers report a Keeled Plump Bush-Cricket in Budapest on a given day, against under 5% in June to March, the lowest months.
Only Budapest, in our data
Budapest is the only city on Wallace's Line with enough records to rate Keeled Plump Bush-Cricket sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Tettigoniidae
The closest relatives of the Keeled Plump Bush-Cricket that you can see in Budapest (family Tettigoniidae, Katydids) are Great Green Bush-Cricket (about 20%), Mediterranean Katydid (about 20%) and Dark Bush-Cricket (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Keeled Plump Bush-Cricket is recorded against all the insects logged in Budapest (10 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.
