Mystacides sepulchralis
In 3 days ~20% in a week ~40%
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 |
With luck
About 10% of wildlife watchers report a Black Dancer Caddisfly sighting in Boston on a given day, based on 101 verified sightings from GBIF citizen-science data. It is the 172nd most-seen of the 1200 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May to August
In those months about 10% of wildlife watchers report a Black Dancer Caddisfly in Boston on a given day, against under 5% in September to April, the lowest months.
Yes
Of the 7 cities where we can rate Black Dancer Caddisfly sightings, Boston has the highest daily chance: about 10%. Next come 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 Boston (101 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.
