Stenotus binotatus
In 3 days ~10% in a week ~20%
Stenotus binotatus is a species of plant bug, originally from Europe, but now also established across North America and New Zealand. It is 6–7 mm (0.24–0.28 in) long, yellowish, with darker markings on the pronotum and forewings. It feeds on various grasses, and can be a pest of crops such as wheat.
Stenotus binotatus is a fairly large plant bug (6–7 millimetres or 0.24–0.28 inches long), which is somewhat variable in appearance. The insect's sides are roughly parallel, and the colours depend on both the animal's sex and its age, the markings becoming darker and stronger with increasing age. Males are mostly yellow, with darker markings on the pronotum and forewings, which females are greenish-yellow with paler markings.
S. binotatus is native to most of the Palearctic but has been introduced to temperate regions around the world. It is common "throughout the northern and central U.S. and southern Canada", and it has been introduced to New Zealand, where it is now found almost throughout the country.
Both the nymphs and adults feed on the inflorescences of grasses, especially timothy-grass (Phleum pratense). In New Zealand, S. binotatus... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vanoise National Park | 🇫🇷 France | |
| 2 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 4 | Pyrénées National Park | 🇫🇷 France | |
| 5 | Great Smoky Mountains National Park | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Two-Spotted Grass Bug sighting in Vancouver on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 223rd most-seen of the 482 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 Two-Spotted Grass Bug in Vancouver on a given day, against under 5% in August to June, the lowest months. That is one of Vancouver's driest months, with about 25 mm of rain against 210 mm in November.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Two-Spotted Grass Bug sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
15th of 23
Of the 23 cities where we can rate Two-Spotted Grass Bug sightings, Vancouver ranks 15th at under 5%. The best odds are in Birmingham (United Kingdom, about 10%), Hamburg (Germany, about 10%) and Berlin (Germany, under 5%).
GBIF citizen-science records
It is estimated from how often the Two-Spotted Grass Bug is recorded against all the insects logged in Vancouver (22 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.
