Rhinoncomimus latipes
In 3 days ~10% in a week ~20%
Rhinoncomimus latipes, the mile-a-minute weevil, is a species of weevil in the family of beetles known as Curculionidae. Rhinoncomimus latipes is highly co-evolved with its host plant (Persicaria perfoliata or Polygonum perfoliatum), commonly known as mile-a-minute or Asiatic tearthumb, and has only been found to successfully reproduce on mile-a-minute. Adults overwinter in leaf litter and emerge early in spring to feed on leaves and mate.
Female R. latipes lay eggs preferentially on the compact flowering head of the plant, a tender location that allows larvae to easily bore into the stem. After 3-5 days, larvae emerge and bore into the stem to feed and develop. Stem boring and internal feeding by larvae significantly reduces the growth and reproductive ability of P. perfoliata.
Fully grown larvae drop into the soil to pupate and emerge as adults by climbing up nearby stems, approximately one month after egg laying. Three to four overlapping generations can occur during a growing season. Originally from Asia, Rhinoncomimus latipes was intentionally introduced in North America in 2004 to control mile-a-minute, which is invasive in several... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Mile-A-Minute Weevil sighting in Washington on a given day, based on 28 verified sightings from GBIF citizen-science data. It is the 665th most-seen of the 1807 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 Mile-A-Minute Weevil in Washington on a given day, so our monthly data shows no clear season.
Only Washington, in our data
Washington is the only city on Wallace's Line with enough records to rate Mile-A-Minute Weevil sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Curculionidae
The closest relatives of the Mile-A-Minute Weevil that you can see in Washington (family Curculionidae, True Weevils) are Yellow Poplar Weevil (about 10%) and Peach Root Weevil (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mile-A-Minute Weevil is recorded against all the insects logged in Washington (28 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.
