Colaspis brunnea
In 3 days ~10% in a week ~20%
Colaspis brunnea, the grape colaspis, is a species of leaf beetle from North America. It mainly occurs in the eastern United States. It is a pest of crop such as corn and soybeans, but damage by it has not been documented as economically significant. It is univoltine, and overwinters in the soil as larvae.
The adults are brown-colored (brunnea is Latin for brown) and are around 5 mm in length. The elytra have a series of parallel rows of "puncture" marks. The larvae are scarabaeiform grub with white-grey bodies and orange head capsules, and are between 5 and 6.5 mm long at the 10th instar. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States | |
| 3 | Philadelphia | 🇺🇸 United States | |
| 4 | Houston | 🇺🇸 United States | |
| 5 | Boston | 🇺🇸 United States | |
| 6 | Dallas | 🇺🇸 United States | |
| 7 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Grape Colaspis sighting in Houston on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 633rd most-seen of the 1057 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 Grape Colaspis in Houston on a given day, so our monthly data shows no clear season.
Among the best
Of the 7 cities where we can rate Grape Colaspis sightings, Houston ranks 4th at under 5%, level with the leaders once rounded. The best odds are in Baltimore (United States, under 5%), Washington (United States, under 5%) and Philadelphia (United States, under 5%).
Same family: Chrysomelidae
The closest relatives of the Grape Colaspis that you can see in Houston (family Chrysomelidae, Leaf Beetles) are Spotted Cucumber Beetle (about 10%) and Swamp Milkweed Leaf Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Grape Colaspis is recorded against all the insects logged in Houston (13 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.
