Rhyssomatus lineaticollis
In 3 days ~10% in a week ~20%
Rhyssomatus lineaticollis, also known by its common name milkweed stem weevil is a species of weevil whose adults feed on the stems of the common milkweed, Asclepias syriaca. It is also destructive to the rare and threatened milkweed species Asclepias meadii. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Montreal | 🇨🇦 Canada | |
| 3 | Philadelphia | 🇺🇸 United States | |
| 4 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 5 | Washington | 🇺🇸 United States | |
| 6 | New York City | 🇺🇸 United States | |
| 7 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Milkweed Stem Weevil sighting in Minneapolis [Saint Paul] on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 603rd most-seen of the 672 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 Milkweed Stem Weevil in Minneapolis [Saint Paul] on a given day, so our monthly data shows no clear season.
Among the best
Of the 7 cities where we can rate Milkweed Stem Weevil sightings, Minneapolis [Saint Paul] ranks 4th at under 5%, level with the leaders once rounded. The best odds are in Baltimore (United States, under 5%), Montreal (Canada, under 5%) and Philadelphia (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Milkweed Stem Weevil is recorded against all the insects logged in Minneapolis [Saint Paul] (5 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.
