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 |
No species of the same family or order lives in Philadelphia, so these are its closest relatives here: other insects.
Rare
Under 5% of wildlife watchers report a Black Dancer Caddisfly sighting in Philadelphia on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 402nd most-seen of the 632 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.
May
In that month about 10% of wildlife watchers report a Black Dancer Caddisfly in Philadelphia on a given day, against under 5% in June to April, the lowest months.
4th of 7
Of the 7 cities where we can rate Black Dancer Caddisfly sightings, Philadelphia ranks 4th 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 Philadelphia (9 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.
