Mystacides sepulchralis
In 3 days ~10% in a week ~20%
Mystacides sepulchralis, the black dancer, is a species of long-horned caddisfly in the family Leptoceridae. It is found in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Montreal | 🇨🇦 Canada | |
| 3 | Sacramento | 🇺🇸 United States | |
| 4 | Philadelphia | 🇺🇸 United States | |
| 5 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 6 | Washington | 🇺🇸 United States | |
| 7 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Black Dancer Caddisfly sighting in Washington on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 1025th most-seen of the 1807 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Black Dancer Caddisfly in Washington on a given day, so our monthly data shows no clear season.
6th of 7
Of the 7 cities where we can rate Black Dancer Caddisfly sightings, Washington ranks 6th at under 5%. The best odds are in Boston (United States, about 10%), Montreal (Canada, under 5%) and Sacramento (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Black Dancer Caddisfly is recorded against all the insects logged in Washington (14 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.
