Neomochtherus willistoni
In 3 days ~10% in a week ~20%
Neomochtherus willistoni is a species of robber fly in the family Asilidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Seattle | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Williston's Bladetail sighting in Seattle on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 354th most-seen of the 428 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.
August
In that month about 10% of wildlife watchers report a Williston's Bladetail in Seattle on a given day, against under 5% in September to July, the lowest months. That is one of Seattle's driest months, with about 30 mm of rain against 190 mm in November.
Only Seattle, in our data
Seattle is the only city on Wallace's Line with enough records to rate Williston's Bladetail sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Asilidae
The closest relatives of the Williston's Bladetail that you can see in Seattle (family Asilidae, Robber Flies) are Sacken Longhorn Robber (about 10%) and Stripe-Legged Robber Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Williston's Bladetail is recorded against all the insects logged in Seattle (6 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.
