Trigonidium cicindeloides
In 3 days ~10% in a week ~20%
Trigonidium cicindeloides is a species of sword-tail cricket widespread in Africa, southern Europe, Asia, and Arabia. During mating season males make a sound created by vibrating the last two joints of their maxillary palpi. This is either to attract females for mating or to drive off other males. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Common Trig sighting in Lisbon on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 274th most-seen of the 441 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
July
In that month about 10% of wildlife watchers report a Common Trig in Lisbon on a given day, against under 5% in August to June, the lowest months. That is one of Lisbon's driest months, with almost no rain against 95 mm in November.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Common Trig sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
11th of 11
Of the 11 cities where we can rate Common Trig sightings, Lisbon ranks 11th at under 5%. The best odds are in Prayagraj (India, about 10%), Porto (Portugal, about 10%) and Taichung (Taiwan, about 10%).
GBIF citizen-science records
It is estimated from how often the Common Trig is recorded against all the insects logged in Lisbon (9 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.
