Mesoleuca gratulata
In 3 days ~10% in a week ~20%
Mesoleuca gratulata, known generally as the western white-ribboned carpet or half-white carpet moth, is a species of geometrid moth in the family Geometridae. It is found in North America. The MONA or Hodges number for Mesoleuca gratulata is 7308. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Redwood National Park | 🇺🇸 United States | |
| 2 | Olympic National Park | 🇺🇸 United States | |
| 3 | Great Bear Rainforest | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Western White-Ribboned Carpet sighting in Portland on a given day, based on 20 verified sightings from GBIF citizen-science data. It is the 226th most-seen of the 507 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.
April
In that month about 10% of wildlife watchers report a Western White-Ribboned Carpet in Portland on a given day, against under 5% in May to March, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Western White-Ribboned Carpet sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 3 cities where we can rate Western White-Ribboned Carpet sightings, Portland ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Seattle (United States, under 5%).
Same family: Geometridae
The closest relatives of the Western White-Ribboned Carpet that you can see in Portland (family Geometridae, Geometer Moths) are Brown-Lined Looper (about 10%), Tissue Moth (about 10%) and Small Dusty Wave (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western White-Ribboned Carpet is recorded against all the insects logged in Portland (20 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.
