Acrolepia assectella
In 3 days ~20% in a week ~40%
The leek moth or onion leaf miner (Acrolepiopsis assectella) is a species of moth of family Acrolepiidae (formerly Glyphipterigidae) and the genus Acrolepiopsis. The species is native to Europe and Siberia, but is also found in North America, where it is an invasive species. While it was initially recorded in Hawaii, this was actually a misidentification of Acrolepiopsis sapporensis.
The leek moth is similar in appearance to other members of the genus Acrolepiopsis, with mottled brown and white wings. Its wing span is approximately 12 mm across. It is a pest of leek crops, as the larvae feed on several species of Allium by mining into the leaves or bulbs. The shape of the leaf mine is variable, ranging from a corridor to a blotch, and can be with or without frass. This leaf mining can occur in the tubular leaves or in the stem. In the case of onions and shallots, the larvae mine into the bulb. In North America, where the moth is an invasive species and has few known natural predators, the species threatens the production and biodiversity of Allium, and it has the potential to destroy entire crops. The parasitoid Diadromus pulchellus is used to control the spread of and damage caused by the leek moth in Europe and North America. 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 Leek Moth sighting in Liverpool on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 296th most-seen of the 632 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Leek Moth in Liverpool on a given day, against under 5% in May, July and September–February, the lowest months.
Yes
Of the 3 cities where we can rate Leek Moth sightings, Liverpool has the highest daily chance: about 10%. Next come Helsinki (Finland, under 5%) and Montreal (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Leek Moth is recorded against all the insects logged in Liverpool (18 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.
