Mischocyttarus flavitarsis
In 3 days ~10% in a week ~20%
Mischocyttarus flavitarsis is a social paper wasp found in western North America. Their nests can be found both in forests close to rivers or in close proximity to human life under the eaves of roofs. Despite the fact that M. flavitarsis nests are frequently in close contact with humans, M. flavitarsis typically will not sting, but rather ram into the threatening individual. Their colony cycle typically begins before May and will last until October. The queen will then seek a hibernation site for the winter. Perched near female hibernation sites are males with whom the female will mate. The males have claimed their territory by rubbing sternal brushes along the border of the site, leaving a chemical that deters other individuals from approaching. M. flavitarsis feed on arthropods, nectar, and animal carcasses and are often prey to birds, ants, and praying mantis.
Henri Louis Frédéric de Saussure, a Swiss mineralogist and entomologist, classified M. flavitarsis in 1854. The genus Mischocyttarus is the only genus in the tribe Mischocyttarini and is the second largest genus of social wasps. Mischocyttarus species are recognizable by the internal and external... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Zion National Park | 🇺🇸 United States | |
| 2 | Yosemite National Park | 🇺🇸 United States | |
| 3 | Great Bear Rainforest | 🇨🇦 Canada |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Denver | 🇺🇸 United States | |
| 2 | Salt Lake City | 🇺🇸 United States | |
| 3 | San Francisco | 🇺🇸 United States | |
| 4 | Portland | 🇺🇸 United States | |
| 5 | Sacramento | 🇺🇸 United States | |
| 6 | Vancouver | 🇨🇦 Canada | |
| 7 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Western Paper Wasp sighting in Sacramento on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 293rd most-seen of the 386 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.
October
In that month about 10% of wildlife watchers report a Western Paper Wasp in Sacramento on a given day, against under 5% in November to September, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Western Paper Wasp sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 7
Of the 7 cities where we can rate Western Paper Wasp sightings, Sacramento ranks 5th at under 5%. The best odds are in Denver (United States, about 10%), Salt Lake City (United States, under 5%) and San Francisco (United States, under 5%).
Same family: Vespidae
The closest relatives of the Western Paper Wasp that you can see in Sacramento (family Vespidae, Hornets, Paper Wasps, Potter Wasps, and Allies) are Western Yellowjacket (about 10%), Ancistrocerus bustamente (about 10%) and Boll's Potter Wasp (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western Paper Wasp is recorded against all the insects logged in Sacramento (7 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.
