Isodontia auripes
In 3 days ~10% in a week ~20%
Isodontia auripes, the brown-legged grass-carrier, is a species of thread-waisted wasp in the family Sphecidae. The wasp will opportunistically use old nests made by Xylocopa virginica or mining bees. Larvae eat for three days and then spend two forming pupae. Oecanthus is a common prey item throughout I. auripes' range. I. auripes lives along the east coast of the United States. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | Boston | 🇺🇸 United States | |
| 4 | Houston | 🇺🇸 United States | |
| 5 | Philadelphia | 🇺🇸 United States | |
| 6 | New York City | 🇺🇸 United States | |
| 7 | Dallas | 🇺🇸 United States | |
| 8 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Brown-Legged Grass-Carrying Wasp sighting in Philadelphia on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 510th 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Brown-Legged Grass-Carrying Wasp in Philadelphia on a given day, so our monthly data shows no clear season.
Among the best
Of the 8 cities where we can rate Brown-Legged Grass-Carrying Wasp sightings, Philadelphia ranks 5th at under 5%, level with the leaders once rounded. The best odds are in Toronto (Canada, under 5%), Baltimore (United States, under 5%) and Boston (United States, under 5%).
Same family: Sphecidae
The closest relatives of the Brown-Legged Grass-Carrying Wasp that you can see in Philadelphia (family Sphecidae, Thread-waisted Wasps) are Yellow-Legged Mud-Dauber Wasp (about 10%) and Great Black Digger Wasp (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Brown-Legged Grass-Carrying Wasp is recorded against all the insects logged in Philadelphia (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.
