Naemia seriata
In 3 days ~10%
Naemia seriata, commonly known as the seaside lady beetle, is a large coccinellid beetle native to North America, and the only species in the genus Naemia. It is found in coastal areas such as beaches, salt marshes, and bay islands on the Atlantic and Pacific coast. This beetle is light brown, yellow, orange, or red in color, with large black spots, often connected along the sides. The pronotum usually has one large central black spot, which is occasionally split into two spots. The body of this species is elongately oval in shape, and between 4 and 6.7mm in length. The two subspecies can be distinguished by markings on the head, with the head of N. seriata seriata being black, while the head of N. seriata litigiosa has a pale triangular marking. Naemia seriata seriata is primarily distributed across Eastern North America, while N. seriata litigiosa is restricted to the American Southwest.
The seaside lady beetle may be confused for the spotted pink ladybeetle, Coleomegilla maculata, which is much more common, and is not restricted to coastal areas. The apical pair of spots on the elytra as well as the pronotum markings are merged in N. seriata, and distinctly separate in C. maculata. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Cypress National Preserve | 🇺🇸 United States | |
| 2 | Everglades National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Houston | 🇺🇸 United States | |
| 2 | Boston | 🇺🇸 United States | |
| 3 | San Diego | 🇺🇸 United States | |
| 4 | Miami | 🇺🇸 United States | |
| 5 | New York City | 🇺🇸 United States | |
| 6 | Los Angeles | 🇺🇸 United States | |
| 7 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Seaside Lady Beetle sighting in San Francisco on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 550th most-seen of the 737 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Seaside Lady Beetle in San Francisco on a given day, so our monthly data shows no clear season.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Seaside Lady Beetle sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 7 cities where we can rate Seaside Lady Beetle sightings, San Francisco ranks 7th at under 5%, level with the leaders once rounded. The best odds are in Houston (United States, under 5%), Boston (United States, under 5%) and San Diego (United States, under 5%).
Same family: Coccinellidae
The closest relatives of the Seaside Lady Beetle that you can see in San Francisco (family Coccinellidae, Lady Beetles) are Asian Lady Beetle (about 20%), Seven-Spotted Lady Beetle (about 20%) and Convergent Lady Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Seaside Lady Beetle is recorded against all the insects logged in San Francisco (9 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.
