Anastrangalia laetifica
In 3 days ~30% in a week ~60%
Anastrangalia laetifica, the dimorphic flower longhorn, is a species of beetle from family Cerambycidae found in Canada, United States, and Mexico. The male elytras are all black, while the females have 4 black dots on their red coloured elytra. They feed on Frasera albicaulis. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yosemite National Park | 🇺🇸 United States | |
| 2 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Portland | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Dimorphic Flower Longhorn Beetle sighting in Yosemite National Park on a given day, based on 56 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 32nd most-seen of the 227 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
May and June
In those months about 20% of wildlife watchers report a Dimorphic Flower Longhorn Beetle in Yosemite National Park on a given day, against under 5% in August to March, the lowest months. Those are among Yosemite National Park's driest months, with about 40 mm of rain a month against 220 mm in January.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Dimorphic Flower Longhorn Beetle sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Dimorphic Flower Longhorn Beetle sightings, Yosemite National Park has the highest daily chance: about 10%. Next come Sequoia and Kings Canyon National Parks (United States, about 10%).
Same family: Cerambycidae
The closest relatives of the Dimorphic Flower Longhorn Beetle that you can see in Yosemite National Park (family Cerambycidae, Longhorn Beetles) are White-Spotted Sawyer (about 10%), Monochamus obtusus (about 10%) and Spined Woodborer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dimorphic Flower Longhorn Beetle is recorded against all the insects logged in Yosemite National Park (56 verified sightings from 2019 to 2026), 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.
