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#4164 · 🦗 bugs, crickets & other insects

Large Milkweed Bug

Oncopeltus fasciatus

Large Milkweed Bug, photo 1 of 9
1/9 © Katja Schulz · CC BY 4.0

what is it?

Oncopeltus fasciatus , known as the large milkweed bug , is a medium-sized hemipteran (true bug) of the family Lygaeidae. It is distributed throughout North America. It ranges from Central America through Mexico and the Caribbean to southern areas in Canada. Costa Rica represents this insects southern limit. It inhabits disturbed areas, roadsides and open pastures. Due to this widespread geographic distribution this insect exhibits varying life history trade-offs depending on the population location.

base stats

  • NL sightings 0iNaturalist, research grade
  • worldwide 96,566iNaturalist observations

Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).

fun facts

  • No confirmed wild sightings in the Netherlands on iNaturalist: you'd have to travel for this one.
  • 96,566 observations worldwide on iNaturalist.
  • Scientifically named by William Sweetland Dallas in 1852 (174 years ago).

fact sheet

English
Large Milkweed Bug
scientific name
Oncopeltus fasciatus
class
Insecta
order
Hemiptera
family
Lygaeidae
sightings in NL
0
sightings worldwide
96,566
GBIF records in NL
1
weight
—
length
—
lifespan
—
named
1852 by William Sweetland Dallas

relatives· Lygaeidae

Sources: iNaturalist taxon 55556, Wikidata Q5140654, GBIF 2007764, Wikipedia (EN). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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