Cochylis dubitana
In 3 days ~10% in a week ~30%
Cochylis dubitana, the little conch, is a moth of the family Tortricidae. It is found in China (Heilongjiang), most of Europe, and in the Caucasus. It is also found in North America, where it has been recorded from Colorado, Maine, Ontario and Washington.
The wingspan is 11–16 mm. The head is white and the thorax dark grey. The forewing costa is gently arched. The ground colour is ochreous whitish or rosy -whitish, the costa strigulated with blackish. The small basal patch and the spot on costa touching it are dark grey. An irregular brownish median fascia is dark grey on the costa and dorsum and obliquely interrupted above the middle. There is a pale greyish ochreous cloud above the tornus and a narrow terminal fascia, dilated on costa. The cilia are dark grey, blackish-mixed. The hindwings in males are whitish-grey, in females grey.
The larva is whitish; head light red-brown; plate of 2 yellow, black-edged posteriorly. Julius von Kennel provides a full description. There are two generations per year with adults on wing in June and again in August. The larvae feed inside the flowers and developing seedheads of various Asteraceae species, including Senecio, Crepis and Hieracium species and Sonchus arvensis and Solidago virgaurea. Larvae can be found in July and from August to April. They overwinter in a cocoon among debris. Pupation takes place from April to July in a cocoon on the ground among debris. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Little Conch sighting in Wadden Sea National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 422nd most-seen of the 818 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
July
In that month about 10% of wildlife watchers report a Little Conch in Wadden Sea National Park on a given day, against under 5% in August to June, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Little Conch sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Wadden Sea National Park, in our data
Wadden Sea National Park is the only park on Wallace's Line with enough records to rate Little Conch sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Little Conch is recorded against all the insects logged in Wadden Sea National Park (12 verified sightings from 2019 to 2026), 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.
