Sephina gundlachii
In 3 days ~20% in a week ~40%
Sephina gundlachii, the giant milkweed bug, is a species of leaf-footed bug in the family Coreidae. It is found in North America and the Caribbean. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Merritt Island National Wildlife Refuge | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Miami | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Giant Milkweed Bug sighting in Merritt Island National Wildlife Refuge on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 97th most-seen of the 189 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
April
In that month about 20% of wildlife watchers report a Giant Milkweed Bug in Merritt Island National Wildlife Refuge on a given day, against under 5% in May–June, September and November–December, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Giant Milkweed Bug sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Merritt Island National Wildlife Refuge, in our data
Merritt Island National Wildlife Refuge is the only park on Wallace's Line with enough records to rate Giant Milkweed Bug sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Coreidae
The closest relatives of the Giant Milkweed Bug that you can see in Merritt Island National Wildlife Refuge (family Coreidae, Leaf-footed Bugs) are Eastern Leaf-Footed Bug (about 10%) and Florida Leaf-Footed Bug (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Giant Milkweed Bug is recorded against all the insects logged in Merritt Island National Wildlife Refuge (11 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.
