Dieunomia nevadensis
In 3 days ~10% in a week ~20%
Dieunomia nevadensis, the Nevada nomia, is a species of sweat bee in the family Halictidae. It is found in Central America and North America. It was first described by Ezra Cresson in 1874. These five subspecies belong to the species Dieunomia nevadensis:
The subspecies Dieunomia nevadensis arizonensis is found in the southwestern and western United States and Mexico, and is easily distinguished by its extensively red abdomen. Dieunomia nevadensis bakeri, sometimes also called Baker's dieunomia, was first described as its own species by Cockerell in 1898. It was subordinated to Dieunomia nevadensis in 1930 based on genitals which appeared identical with those of Dieunomia nevadensis, despite the different outward appearance. Dieunomia nevadensis bakeri is about 2 mm longer than general Dieunomia nevadensis and is more robust; it has a black instead of yellowish-red abdomen, coarser punctures in the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Diego | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Nevada Nomia sighting in San Diego on a given day, based on 219 verified sightings from GBIF citizen-science data. It is the 192nd 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.
September and October
In those months about 10% of wildlife watchers report a Nevada Nomia in San Diego on a given day, against under 5% in November to August, the lowest months. Those are among San Diego's driest months, with about 10 mm of rain a month against 55 mm in February.
Only San Diego, in our data
San Diego is the only city on Wallace's Line with enough records to rate Nevada Nomia sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Halictidae
The closest relatives of the Nevada Nomia that you can see in San Diego (family Halictidae, Sweat Bees) are Tripartite Sweat Bee (about 10%), Ligated Furrow Bee (about 10%) and Tansy Mustard Sweat Bee (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Nevada Nomia is recorded against all the insects logged in San Diego (219 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.
