Acleris schalleriana
In 3 days ~10% in a week ~20%
Acleris schalleriana, the viburnum button or Schaller's acleris moth, is a moth of the family Tortricidae. It was described by Carl Linnaeus in 1761. It is found in most of Europe. It is also found in North America. Acleris viburnana is a possible synonym that refers to the North American populations.
The wingspan is 15–20 mm. The forewings are oblong, ochreous-grey to ochreous-brown, sometimes darker-strigulated. There is a moderately large tuft on the submedian fold before the middle, one in middle of disc, and scattered smaller tufts, often black. The edge of the basal patch is sometimes darker dorsally and there is a large triangular red -brown or dark fuscous blotch on the costa, sometimes whitish-edged anteriorly. The hindwings are grey. The larva is green; head brownish
Julius von Kennel provides a full description. Adults are on wing from August to October, they overwinter and reappear the following spring. The larvae feed on Viburnum species, including Viburnum lantana and Viburnum opulus. They twist a leaf to form a pocket and feed from within.
Media related to Acleris schalleriana at Wikimedia Commons Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chicago | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Schaller's Acleris Moth sighting in Chicago on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 637th most-seen of the 978 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Schaller's Acleris Moth in Chicago on a given day, so our monthly data shows no clear season.
Only Chicago, in our data
Chicago is the only city on Wallace's Line with enough records to rate Schaller's Acleris Moth sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Schaller's Acleris Moth is recorded against all the insects logged in Chicago (12 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.
