Acleris rhombana
In 3 days ~10% in a week ~20%
Acleris rhombana, the rhomboid tortrix, is a moth of the family Tortricidae. It is found in the Palearctic realm, from Europe to the Caucasus, Armenia, and Turkmenistan. The wingspan is 14–18 mm. The forewings are suboblong, apex rather strongly prominent, whitish-ochreous to reddish-ochreous, sometimes much mixed with fuscous, strigulated with dark fuscous or ferruginous. The veins are dark fuscous and the tufts very slight. The edge of the basal patch is usually dark fuscous and the angulated central fascia and costal patch are often rather dark fuscous, sometimes united in the disc. The apical half of cilia is white on upper part of the termen. The hindwings are grey-whitish, indistinctly strigulated with grey. The larva is pale green-yellowish; head pale brown; anal plate green.
Julius von Kennel provides a full description. The moths are on wing from June to November depending on the location. The larvae feed on various trees and shrubs, including Crataegus, Malus, Pyrus, Prunus and Rosaceae species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Paris | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Rhomboid Tortrix sighting in Paris on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 592nd most-seen of the 916 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.
September and October
In those months about 10% of wildlife watchers report a Rhomboid Tortrix in Paris on a given day, against under 5% in November to August, the lowest months.
Between midnight and 3 am
Across all the parks we cover, that three-hour window holds the most Rhomboid Tortrix sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.
Only Paris, in our data
Paris is the only city on Wallace's Line with enough records to rate Rhomboid Tortrix sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Rhomboid Tortrix is recorded against all the insects logged in Paris (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.
