Hydriomena speciosata
In 3 days ~10% in a week ~30%
Hydriomena speciosata is a moth of the family Geometridae. It is found from coastal British Columbia south to California. The habitat consists of wet conifer forests. The wingspan is about 36 mm. The forewings have alternating bands of green and black. Adults are on wing in midsummer.
The larvae feed on the foliage of Pinaceae species, including Abies grandis, Picea, Pinus, Pseudotsuga menziesii and Tsuga heterophylla. Mature larvae reach a length of 20 mm. Pupation takes place in May or June. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Bear Rainforest | 🇨🇦 Canada |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Hydriomena speciosata sighting in Great Bear Rainforest on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 200th most-seen of the 235 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.
May and July
In those months about 10% of wildlife watchers report a Hydriomena speciosata in Great Bear Rainforest on a given day, against under 5% in June and August–April, the lowest months. Those are among Great Bear Rainforest's driest months, with about 130 mm of rain a month against 480 mm in November.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Hydriomena speciosata sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Great Bear Rainforest, in our data
Great Bear Rainforest is the only park on Wallace's Line with enough records to rate Hydriomena speciosata sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Geometridae
The closest relatives of the Hydriomena speciosata that you can see in Great Bear Rainforest (family Geometridae, Geometer Moths) are Variable Carpet Moth (about 10%), Peppered Moth (about 10%) and Western Carpet (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hydriomena speciosata is recorded against all the insects logged in Great Bear Rainforest (6 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.
