Baliosus nervosus
In 3 days ~10% in a week ~20%
Baliosus nervosus, the basswood leaf miner, is a species of leaf beetle in the family Chrysomelidae. It is found in North America. Its typical host is basswood, and adults skeletonize the surface of leaves. Larvae have been known to create leaf mines on soybean leaves. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Toronto | 🇨🇦 Canada | |
| 3 | Montreal | 🇨🇦 Canada | |
| 4 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Basswood Leafminer sighting in Toronto on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 651st most-seen of the 1689 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 Basswood Leafminer in Toronto on a given day, so our monthly data shows no clear season.
Among the best
Of the 4 cities where we can rate Basswood Leafminer sightings, Toronto ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Boston (United States, under 5%).
Same family: Chrysomelidae
The closest relatives of the Basswood Leafminer that you can see in Toronto (family Chrysomelidae, Leaf Beetles) are Spotted Cucumber Beetle (about 10%) and Goldenrod Leaf Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Basswood Leafminer is recorded against all the insects logged in Toronto (22 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.
