Xylocopa virginica
In 3 days ~60% in a week ~90%
Xylocopa virginica, sometimes referred to as the eastern carpenter bee, is a species of bee that extends through the eastern United States and into Canada. It is sympatric with Xylocopa micans in much of southeastern United States. It nests in various types of wood and eats pollen and nectar.
In X. virginica, dominant females do not focus solely on egg-laying, as in other bee species considered to have "queens". Instead, dominant X. virginica females are responsible for a full gamut of activities including reproduction, foraging, and nest construction, whereas subordinate bees may engage in little activity outside of guarding the nest.
The bee is similar in size to bumblebees, but has a glossy, mostly black body with a slight metallic purple tint. X. virginica males and females have generally the same mass, but can be differentiated visually by the male's longer body and the female's wider head. The males also have a white spot on their face. Additionally, the males have larger thoracic volumes for given masses. Females of different social standing can also be told apart based on morphology. Primary females are larger than secondary or tertiary... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States | |
| 3 | Merritt Island National Wildlife Refuge | 🇺🇸 United States | |
| 4 | Everglades National Park | 🇺🇸 United States | |
| 5 | Congaree National Park | 🇺🇸 United States | |
| 6 | Big Cypress National Preserve | 🇺🇸 United States | |
| 7 | Point Pelee National Park | 🇨🇦 Canada |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | Philadelphia | 🇺🇸 United States | |
| 3 | Boston | 🇺🇸 United States | |
| 4 | Baltimore | 🇺🇸 United States | |
| 5 | Detroit | 🇺🇸 United States | |
| 6 | Houston | 🇺🇸 United States | |
| 7 | New York City | 🇺🇸 United States | |
| 8 | Toronto | 🇨🇦 Canada | |
| 9 | Dallas | 🇺🇸 United States | |
| 10 | Chicago | 🇺🇸 United States |
Possible
About 30% of wildlife watchers report an Eastern Carpenter Bee sighting in Boston on a given day, based on 1,365 verified sightings from GBIF citizen-science data. It is the 5th most-seen of the 1200 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
July to September
In those months about 40% of wildlife watchers report an Eastern Carpenter Bee in Boston on a given day, against under 5% in December to March, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Eastern Carpenter Bee sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 15 cities where we can rate Eastern Carpenter Bee sightings, Boston ranks 3rd at about 30%, level with the leaders once rounded. The best odds are in Washington (United States, about 30%) and Philadelphia (United States, about 30%).
Same family: Apidae
The closest relatives of the Eastern Carpenter Bee that you can see in Boston (family Apidae, Honey Bees, Bumble Bees, and Allies) are Common Eastern Bumble Bee (about 50%), Brown-Belted Bumble Bee (about 30%) and Two-Spotted Bumble Bee (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Eastern Carpenter Bee is recorded against all the insects logged in Boston (1,365 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.
