Pale Green Assassin Bug

Zelus luridus · Order: Hemiptera · Family: Reduviidae

Can bite. It can bite people and the bite is very painful, though not medically serious.

Source: Wikipedia

Pale Green Assassin Bug
Photo: Douglas Goldman, CC BY-SA

Adult pale green assassin bugs are about 14-16 mm long, with females slightly larger than males. They hunt other insects by waiting on leaves or actively chasing prey. If handled they may deliver a painful bite, but it is not considered medically significant.

Source: Wikipedia

How to recognize it

The bug is pale green with back markings that can be dark brown, red, bright yellow, or other colors.

Source: Wikipedia

Size

Adults range from 12.5 to 18 mm in length. Females average about 16 mm, males about 14 mm.

Source: Wikipedia

Does it bite or sting?

If handled, it can bite and the bite is extremely painful. The bite is not considered medically significant to humans.

Source: Wikipedia

What it eats

It preys on other insects. It ambushes insects on leaves or sometimes hunts actively.

Source: Wikipedia

Life cycle

Egg masses are laid from late June to August and are conical with a flat top. Nymphs are solid green, wingless, and have narrower bodies than adults.

Source: Wikipedia

When you see it

Eggs are laid from late June through August.

Source: Wikipedia

Where it is found in the US

Recorded in 43 of 51 states and DC. Most records: Massachusetts, Virginia, New York, Ohio, Michigan, Pennsylvania, North Carolina, Maryland.

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

Source: GBIF

Status: native in North America; native in Canada; native in United States. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

Do they bite people?

Yes, they can bite and the bite is very painful, though it is not medically serious.

Source: Wikipedia

How big are they?

Adults are between 12.5 and 18 mm long, with females averaging 16 mm and males 14 mm.

Source: Wikipedia

What do they eat?

They prey on other insects, waiting on leaves or actively hunting.

Source: Wikipedia

Same family (Reduviidae)

Sources

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

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

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

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.