Eulithis xylina
In 3 days ~10% in a week ~20%
Eulithis xylina, the Northwestern Phoenix moth, is a species of Geometrid moth in the family Geometridae. It is a common nocturnal moth with reddish-brown marbled scales intersected with lacy white bands. The larva feeds on a wide range of broad plants. It is found in western North America.
The species was first described by George D. Hulst in “A classification of the Geometrina of North America…” in 1896, under the name Neolexia xylina. The name was moved to the genus Eulithis by Douglas C. Ferguson in 1983. The original description of the species holotype by George Hulst from 1896 can be read in “Classification of the geometrina of North America”.
Eulithis xylina speciosa Eulithis xylina xylina Western North America, from Alaska to California and east as far as Colorado and in the boreal forests of Alberta and into Saskatchewan. The majority of sightings are west of the Cascade mountains in British Columbia, Washington and Oregon. It inhabits mesic deciduous, mixedwood forests and riparian habitats.
There is substantial morphological variability within the genus. Wingspan is approx. 29-32mm. Forewing length 15-18 mm. Females... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pacific Rim National Park Reserve | 🇨🇦 Canada |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Northwestern Phoenix Moth sighting in Edmonton on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 336th most-seen of the 390 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.
July
In that month about 10% of wildlife watchers report a Northwestern Phoenix Moth in Edmonton on a given day, against under 5% in August to June, the lowest months. That is one of Edmonton's wettest months, with about 95 mm of rain against 20 mm in February.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Northwestern Phoenix Moth sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 2 cities where we can rate Northwestern Phoenix Moth sightings, Edmonton has the highest daily chance: under 5%. Next come Portland (United States, under 5%).
Same family: Geometridae
The closest relatives of the Northwestern Phoenix Moth that you can see in Edmonton (family Geometridae, Geometer Moths) are Maple Spanworm Moth (about 10%) and Linden Looper Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Northwestern Phoenix Moth is recorded against all the insects logged in Edmonton (5 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.
