Aglossa caprealis
In 3 days ~10% in a week ~20%
Aglossa caprealis, the stored grain moth, is a moth species of the family Pyralidae. It is found globally, though its native range is presumably the western Palearctic or nearby regions, as in other Aglossa species. The wingspan is 23–27 mm. The moth flies from June to August, depending on the location.
The larvae feed on dry plant waste, grain (e.g. maize), hay, straw and decaying manure. Sometimes, they even eat animal carcasses, suet, lard, pork rinds and other fatty materials. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Stored Grain Moth sighting in Porto on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 357th most-seen of the 498 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 and August
In those months about 10% of wildlife watchers report a Stored Grain Moth in Porto on a given day, against under 5% in September to June, the lowest months. Those are among Porto's driest months, with about 20 mm of rain a month against 140 mm in January.
8th of 14
Of the 14 cities where we can rate Stored Grain Moth sightings, Porto ranks 8th at under 5%. The best odds are in Rotterdam [The Hague] (Netherlands, about 10%), Vienna (Austria, about 10%) and Amsterdam (Netherlands, about 10%).
Same family: Pyralidae
The closest relatives of the Stored Grain Moth that you can see in Porto (family Pyralidae, Pyralid Snout Moths) are Rosy Tabby (about 10%), Long-Legged Tabby (about 10%) and Meal Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Stored Grain Moth is recorded against all the insects logged in Porto (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.
