Parornix devoniella
In 3 days ~30% in a week ~50%
Parornix devoniella is a moth of the family Gracillariidae found in Europe. The larvae are leaf miners, feeding on the tissue inside the leaves of hazels Corylus species. The wingspan is 9–10 mm. The head is whitish mixed with fuscous. Palpi white, apex of second joint and median band of terminal dark fuscous. Forewings are grey irrorated with dark fuscous and whitish; numerous costal strigulae, an indistinct posterior spot in disc preceded by a blackish elongate spot, and suffused dorsal strigulae interrupted by two elongate blackish spots whitish; a black apical dot cilia with three entire dark fuscous lines. Hindwings are grey.
The larva is whitish-green; dorsal line dark green; head brown; segment 2 with four black spots. Adults are on wing in May and again in August in two generations. The larvae mine the leaves of hazel (Corylus avellana), Turkish hazel (Corylus colurna) and the filbert (Corylus maxima).
It is known from all of Europe (except the Iberian Peninsula, the Balkan Peninsula and the Mediterranean islands). Parornix devoniella was originally named by the English entomologist, Henry Tibbats Stainton in... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Hazel Slender sighting in Liverpool on a given day, based on 33 verified sightings from GBIF citizen-science data. It is the 223rd most-seen of the 632 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
November
In that month about 40% of wildlife watchers report a Hazel Slender in Liverpool on a given day, against under 5% in January to July, the lowest months.
Yes
Of the 2 cities where we can rate Hazel Slender sightings, Liverpool has the highest daily chance: about 10%. Next come London (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Hazel Slender is recorded against all the insects logged in Liverpool (33 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.
