Chauliodes rastricornis
In 3 days ~30% in a week ~60%
Chauliodes rastricornis, the spring fishfly, is a species of fishfly in the family Corydalidae. It is found in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Point Pelee National Park | 🇨🇦 Canada | |
| 2 | Acadia National Park | 🇺🇸 United States | |
| 3 | Merritt Island National Wildlife Refuge | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 2 | Detroit | 🇺🇸 United States | |
| 3 | Boston | 🇺🇸 United States | |
| 4 | Orlando | 🇺🇸 United States | |
| 5 | Houston | 🇺🇸 United States | |
| 6 | Chicago | 🇺🇸 United States | |
| 7 | Montreal | 🇨🇦 Canada | |
| 8 | New York City | 🇺🇸 United States | |
| 9 | Toronto | 🇨🇦 Canada | |
| 10 | Dallas | 🇺🇸 United States |
No species of the same family or order lives in Point Pelee National Park, so these are its closest relatives here: other insects.
With luck
About 10% of wildlife watchers report a Spring Fishfly sighting in Point Pelee National Park on a given day, based on 16 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 63rd most-seen of the 196 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Spring Fishfly in Point Pelee National Park on a given day, against under 5% in September to April, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Spring Fishfly sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 3 parks where we can rate Spring Fishfly sightings, Point Pelee National Park has the highest daily chance: about 10%. Next come Acadia National Park (United States, about 10%) and Merritt Island National Wildlife Refuge (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Spring Fishfly is recorded against all the insects logged in Point Pelee National Park (16 verified sightings from 2019 to 2026), 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.
