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 Boston on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 612th most-seen of the 1200 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.
June
In that month about 10% of wildlife watchers report a Basswood Leafminer in Boston on a given day, against under 5% in July to May, the lowest months.
Yes
Of the 4 cities where we can rate Basswood Leafminer sightings, Boston has the highest daily chance: under 5%. Next come Toronto (Canada, under 5%) and Montreal (Canada, under 5%).
Same family: Chrysomelidae
The closest relatives of the Basswood Leafminer that you can see in Boston (family Chrysomelidae, Leaf Beetles) are Spotted Cucumber Beetle (about 10%), Willow Leaf Beetle (about 10%) and Golden Tortoise 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 Boston (16 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.
