Dasychira basiflava
In 3 days ~10%
Dasychira basiflava, the yellow-based tussock, is a moth of the family Erebidae. The species was first described by Alpheus Spring Packard in 1865. It is found in North America from Massachusetts and southern Ontario west to Iowa, Texas, south to South Carolina and possibly Florida. It is also found in Southeastern Alaska.
The wingspan is 30–39 mm for males and 42–54 mm for females. Adults are on wing from June to August in the north and earlier in spring in the south. There is one generation in most of the range, but a second generation can occur in the southern part of the range.
The larvae feed on oak, dogwood and blueberry. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Yellow-Based Tussock Moth sighting in Washington on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 1649th most-seen of the 1807 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Yellow-Based Tussock Moth in Washington on a given day, so our monthly data shows no clear season.
Only Washington, in our data
Washington is the only city on Wallace's Line with enough records to rate Yellow-Based Tussock Moth sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Erebidae
The closest relatives of the Yellow-Based Tussock Moth that you can see in Washington (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Isabella Tiger Moth (about 10%), Green Cloverworm Moth (about 10%) and Giant Leopard Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Yellow-Based Tussock Moth is recorded against all the insects logged in Washington (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.
