Helcystogramma lutatella
In 3 days ~20% in a week ~40%
Helcystogramma lutatella, the clay crest, is a moth in the family Gelechiidae. It was described by Gottlieb August Wilhelm Herrich-Schäffer in 1854. It is found in Uralsk, Transbaikalia, China (Fujian, Gansu, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Jiangxi, Shaanxi, Sichuan, Xizang, Xinjiang) and almost all of Europe.
The wingspan is 12–18 mm. The forewings are yellowish brown with rounded brown spots at the middle and near the end of the cell as well as at three-fifths length of the fold. These spots are margined with yellowish white. Adults are on wing from July to early September in western Europe.
The larvae feed on Calamagrostis epigeios, Dactylis glomerata, Phragmites australis and Elymus repens. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Helcystogramma lutatella sighting in Bavarian Forest National Park on a given day, based on 18 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 288th most-seen of the 1115 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Helcystogramma lutatella in Bavarian Forest National Park on a given day, against under 5% in September to June, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Helcystogramma lutatella 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 Bavarian Forest National Park, in our data
Bavarian Forest National Park is the only park on Wallace's Line with enough records to rate Helcystogramma lutatella sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Gelechiidae
The closest relatives of the Helcystogramma lutatella that you can see in Bavarian Forest National Park (family Gelechiidae, Twirler Moths) are Ash-Coloured Crest (about 10%), Argolamprotes micella (about 10%) and Pseudotelphusa paripunctella (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Helcystogramma lutatella is recorded against all the insects logged in Bavarian Forest National Park (18 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.
