Calosoma semilaeve
In 3 days ~10% in a week ~20%
Calosoma semilaeve, the black calosoma or semi-smooth beautiful black searcher, is a species of ground beetle in the subfamily Carabinae. It was described by John Lawrence LeConte in 1851. This species is found in Mexico (Baja California) and the United States (Arizona, California, Idaho, Oregon, Utah), where it inhabits cultivated fields and road sides.
Adults are diurnal and nocturnal and prey on caterpillars (including those of Peridroma saucia and Malacosoma incurvum), as well as tenebrionids, elaterids and carabids. Adults overwinter in cavities in the ground. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Los Angeles | 🇺🇸 United States | |
| 2 | San Diego | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Black Calosoma sighting in San Diego on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 420th most-seen of the 693 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 Black Calosoma in San Diego on a given day, so our monthly data shows no clear season.
Among the best
Of the 2 cities where we can rate Black Calosoma sightings, San Diego ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Los Angeles (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Black Calosoma is recorded against all the insects logged in San Diego (12 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.
