Sabulodes aegrotata
In 3 days ~20% in a week ~30%
Sabulodes aegrotata, the Omnivorous Looper, is a moth of the family Geometridae. It is found in Western North America, from British Columbia to California. The larvae eat a wide variety of flowering trees and plants including some agricultural crops. Its distinguishing feature is that the medial and postmedial lines intersect near the trailing edge of the wing.
This moth is common in damp coastal forests along the west coast of North America from British Columbia to California. This species has three generations per year in coastal areas and four or five generations in inland locations. Depending on temperature, egg-to-adult development takes 2 to 5 months.
Eggs are barrel-shaped, light green to reddish brown with a ring of tiny projections. Eggs are laid in clusters on leaves of the host plants and hatch after 8 or 9 days. When mature caterpillars are ready to pupate, they make pearly white to brown cocoons, hidden in between leaves. Pupation lasts 1 to 4 weeks.
The larva make shelters from silk and folded leaves where they shelter during the day and come out at night to feed. The University of California IPM Program gives a description of... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Redwood National Park | 🇺🇸 United States | |
| 2 | Channel Islands National Park | 🇺🇸 United States | |
| 3 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Seattle | 🇺🇸 United States | |
| 2 | San Francisco | 🇺🇸 United States | |
| 3 | Portland | 🇺🇸 United States | |
| 4 | San Diego | 🇺🇸 United States | |
| 5 | Los Angeles | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report an Omnivorous Looper sighting in Portland on a given day, based on 55 verified sightings from GBIF citizen-science data. It is the 117th most-seen of the 507 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
July–August and October–November
In those months about 10% of wildlife watchers report an Omnivorous Looper in Portland on a given day, against under 5% in September and December–June, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Omnivorous Looper sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 5 cities where we can rate Omnivorous Looper sightings, Portland ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Seattle (United States, about 10%) and San Francisco (United States, about 10%).
Same family: Geometridae
The closest relatives of the Omnivorous Looper 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 Omnivorous Looper is recorded against all the insects logged in Portland (55 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.
