Oncopeltus sanguinolentus
In 3 days ~10% in a week ~30%
Oncopeltus sanguinolentus, the blood-colored milkweed bug, is a species of seed bug in the family Lygaeidae. It is found in Central America and North America. Like several other members in the genus Oncopeltus, it preferentially feeds on milkweed plants, particularly Asclepias subulata. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | El Vizcaíno Biosphere Reserve | 🇲🇽 Mexico | |
| 2 | Joshua Tree National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mesa | 🇺🇸 United States | |
| 2 | Phoenix | 🇺🇸 United States | |
| 3 | San Diego | 🇺🇸 United States | |
| 4 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Blood-Colored Milkweed Bug sighting in Joshua Tree National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 164th most-seen of the 190 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May, July and December–January
In those months about 10% of wildlife watchers report a Blood-Colored Milkweed Bug in Joshua Tree National Park on a given day, against under 5% in February–April, June and August–November, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Blood-Colored Milkweed Bug sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Blood-Colored Milkweed Bug sightings, Joshua Tree National Park ranks 2nd at under 5%. The best odds are in El Vizcaíno Biosphere Reserve (Mexico, about 10%).
GBIF citizen-science records
It is estimated from how often the Blood-Colored Milkweed Bug is recorded against all the insects logged in Joshua Tree National Park (6 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.
