Agonopterix arenella
In 3 days ~10% in a week ~30%
Agonopterix arenella is a species of moth of the family Depressariidae. It is found in all of Europe, except the Iberian Peninsula. The wingspan is 19–23 mm. The forewings are whitish ochreous, more or less suffused with fuscous and sprinkled with dark fuscous; costa spotted with dark fuscous; first discal stigma and a dot obliquely before and above it black; second indistinct, dark fuscous; a dark fuscous spot between and above these; dark fuscous terminal dots. Hindwings are pale whitish-fuscous. The larva is green, paler laterally; dorsal and subdorsal lines dark green; dots blackish; head light brownish-ochreous; 2 with two blackish spots.
The larvae feed on Arctium lappa, Carduus, Carlina, Centaurea jacea, Centaurea nigra, Centaurea scabiosa, Cirsium vulgare, Knautia, Serratula tinctoria and Sonchus. They mine the leaves of their host plant. Larvae can be found from May to early August. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nizhny Novgorod | 🇷🇺 Russia | |
| 2 | Helsinki | 🇫🇮 Finland | |
| 3 | Moscow | 🇷🇺 Russia | |
| 4 | London | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Brindled Flat-Body sighting in Helsinki on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 445th most-seen of the 838 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
September
In that month about 10% of wildlife watchers report a Brindled Flat-Body in Helsinki on a given day, against under 5% in October to August, the lowest months.
Among the best
Of the 4 cities where we can rate Brindled Flat-Body sightings, Helsinki ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Nizhny Novgorod (Russia, under 5%).
GBIF citizen-science records
It is estimated from how often the Brindled Flat-Body is recorded against all the insects logged in Helsinki (11 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.
