Eastern Parson Spider

Herpyllus ecclesiasticus · Order: Araneae · Family: Gnaphosidae

Also called: Parson Spider

Can bite. It can bite, causing pain and sometimes an allergic reaction.

Source: Wikipedia

Eastern Parson Spider
Photo: jabauhs, CC BY

The Eastern Parson Spider has black hairs on its front body and gray hairs on its abdomen, with a distinctive white mark on its back and a small white spot near the spinnerets. It hunts at night by chasing prey, does not spin webs, and its bites are painful and can cause allergic reactions.

Source: Wikipedia

Size

The spider’s cephalothorax is covered in black hairs while the abdomen has gray hairs.

Source: Wikipedia

Is it a pest in the house?

It enters houses more often than other spiders and is usually seen on floors or low walls.

Source: Wikipedia

Does it bite or sting?

Bites are painful and some people may have an allergic reaction.

Source: Wikipedia

What it eats

It hunts at night, actively chasing prey rather than waiting in a web.

Source: Wikipedia

When you see it

Individuals are present year-round in both homes and natural habitats.

Source: Wikipedia

Where it comes from

It is native to eastern North America, from Alberta east to Nova Scotia, and south to Tamaulipas, Mexico, and Florida.

Source: Wikipedia

Where it is found in the US

Recorded in 44 of 51 states and DC. Most records: New York, Ohio, Virginia, Massachusetts, Pennsylvania, Michigan, North Carolina, Illinois.

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

Source: GBIF

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

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

Do Eastern Parson Spiders bite?

Yes, their bites are painful and can cause allergic reactions in some individuals.

Source: Wikipedia

What do Eastern Parson Spiders look like?

They have black hairs on the cephalothorax, gray hairs on the abdomen, and a distinctive white mark on the back with a small white spot above the spinnerets.

Source: Wikipedia

Sources

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

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

Text written 2026-10-22 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.