Hellinsia homodactylus
In 3 days ~10% in a week ~30%
Hellinsia homodactylus is a moth of the family Pterophoridae. It is found in North America (including New Hampshire, New York, Maryland, California, Ontario, Oregon, Quebec, British Columbia and Alberta) and Guerrero in Mexico.
The wingspan is 22–27 mm. The head is white and the palpi and antennae are whitish. The thorax and abdomen are also white, as are the legs, although these are slightly tinged with cinereous. The forewings are white, very slightly dusted on the costa with brownish scales. There is a brownish spot before and slightly below the base of the fissure and a group of indistinct brownish scales between this and the base of the wing. There is also a faint indication of two brownish dots on the outer margin. The hindwings and fringes are pure white, with a silky lustre. In some specimens the brownish spots are absent.
The larvae have been recorded feeding on Compsilura concinnata, Oxynops anthracinus, Pseudosiphona brevirostris and Tachinophyto floridensis. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Acadia National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Plain Plume Moth sighting in Acadia National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 347th most-seen of the 405 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 Plain Plume Moth in Acadia National Park on a given day, against under 5% in August to June, the lowest months.
Between midnight and 3 am
Across all the parks we cover, that three-hour window holds the most Plain Plume Moth sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.
Only Acadia National Park, in our data
Acadia National Park is the only park on Wallace's Line with enough records to rate Plain Plume 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 Plain Plume Moth is recorded against all the insects logged in Acadia National Park (5 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.
