Ocean Strider vs Milkweed Bug

Side-by-side species comparison

Attribute Ocean Strider Milkweed Bug
Scientific Name Halobates micans Oncopeltus fasciatus
Order Hemiptera Hemiptera
Family Gerridae Lygaeidae
Size 4-5 mm 10-13 mm
Habitat Beaches & Coastal Grasslands
Diet Omnivores Seed Feeders
Regions Tropical Atlantic, Pacific, and Indian Oceans North America, Central America
Conservation Least Concern Least Concern

Ocean Strider

A remarkable open-ocean water strider that spends its entire life on the surface of tropical seas. It is one of the very few insects adapted to a fully marine existence. It lays eggs on floating debris including feathers and seaweed.

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Did You Know?

It is one of the only insects to have colonized the open ocean and can be found thousands of kilometers from the nearest land, surviving storms and wave action.

Milkweed Bug

A medium-sized bug with bold orange-red and black warning coloration. It feeds on milkweed seeds and sequesters toxic cardiac glycosides for its own defense.

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Did You Know?

This bug has become a widely used laboratory model organism because it is easy to rear, has no diapause requirement, and displays clear warning coloration.