Giant Milkweed Bug

Sephina gundlachii · Order: Hemiptera · Family: Coreidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Giant Milkweed Bug
Photo: iNaturalist user, CC0

The giant milkweed bug lives in North America and the Caribbean. It is native to North America and the Caribbean.

Source: Wikipedia

Where it comes from

It occurs in North America and the Caribbean.

Source: Wikipedia

Where it is found in the US

Recorded in 1 of 51 states and DC. Most records: Florida.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Months it is reported in the US

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Source: GBIF

More photos

Giant Milkweed Bug photo 2
Photo: Melissa Meadows, CC BY
Giant Milkweed Bug photo 3
Photo: Austin Smith, CC BY
Giant Milkweed Bug photo 4
Photo: Brynn Fricke, CC BY
Giant Milkweed Bug photo 5
Photo: Robert Guralnick, CC BY

Same family (Coreidae)

Western Conifer Seed BugWestern Conifer Seed BugLeptoglossus occidentalisDamages trees, gardens or cropsSquash BugSquash BugAnasa tristisDamages trees, gardens or cropsDock BugDock BugCoreus marginatusAcanthocephala terminalisAcanthocephala terminalisHarmlessEastern Leaf-footed BugEastern Leaf-footed BugLeptoglossus phyllopusDamages trees, gardens or cropsGiant leaf-footed bugGiant leaf-footed bugAcanthocephala declivis

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Sephina_gundlachii

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.