Luffia lapidella
In 3 days ~10% in a week ~20%
Luffia lapidella is a moth of the Psychidae family found in Europe. It was first described by the German zoologist, Johann August Ephraim Goeze in 1783. The larvae live in cases and feed on lichens and the female moths are wingless.
Imago The moth flies from June to July depending on the location. Females are wingless and unable to fly. the males have wings although not all males can fly. L. lapidella has partial parthenogenesis. Ovum Eggs are laid in the case and hatch in four to five weeks.
Larva The larvae live in cases and feed on algae and lichen. The cases are covered in lichen and sand, are conical, round in cross-section with a width of 2–3 mm (0.079–0.118 in)) and up to 5–7 mm (0.20–0.28 in)) long. They are found on tree trunks, rocks, walls and frames and have a preference for warm dry places. The caterpillar overwinters in the case and can be found from August to May. The case is at 90° to the substrate.
Pupa Pupa can be found from May to June and are attached to the tree or rock where the larva was feeding. The cases are very similar to those of Luffia ferchaultella. Luffia lapidella is found in Europe including... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Grey Smoke sighting in London on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 1153rd most-seen of the 1504 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.
November and December
In those months about 10% of wildlife watchers report a Grey Smoke in London on a given day, against under 5% in January to October, the lowest months.
Only London, in our data
London is the only city on Wallace's Line with enough records to rate Grey Smoke sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Grey Smoke is recorded against all the insects logged in London (8 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.
