Anthidium maculosum
In 3 days ~10% in a week ~20%
Anthidium maculosum is a species of bee in the family Megachilidae, the leaf-cutter, carder, or mason bees. It is a solitary bee where the males are territorial and the females take part in polyandry. The males of A. maculosum differ from most other males of bee species because the males are significantly larger than females. In addition, subordinate males that act as satellites are smaller than territory-owning males. This species can be found predominately in Mexico and the United States.
A. maculosum belongs to the subfamily Megachilinae within the hymenopteran family Megachilidae. Megachilinae is divided into 5 tribes: Anthidiini, Dioxyini, Lithurgini, Megachilini, and Osmiini. The genus Anthidium, composed of carder bees, has 92 species of bees. Anthidium is part of the tribe Anthidiini, which is one of the most diverse genera of the family Megachilidae.
The distribution of A. maculosum ranges in Middle America and North America. These bees are most commonly found in Mexico and the United States. Observations of this bee have been made range between the Washington–Oregon border in the north and Honduras in the south, and as far west... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sacramento | 🇺🇸 United States | |
| 2 | San Diego | 🇺🇸 United States | |
| 3 | San Francisco | 🇺🇸 United States | |
| 4 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Spotted Woolcarder sighting in San Diego on a given day, based on 50 verified sightings from GBIF citizen-science data. It is the 178th 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.
August and September
In those months about 10% of wildlife watchers report a Spotted Woolcarder in San Diego on a given day, against under 5% in October to July, the lowest months. Those are among San Diego's driest months, with about 5 mm of rain a month against 55 mm in February.
2nd of 4
Of the 4 cities where we can rate Spotted Woolcarder sightings, San Diego ranks 2nd at under 5%. The best odds are in Sacramento (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Spotted Woolcarder is recorded against all the insects logged in San Diego (50 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.
