Wolf Spiders: Pictures and Identification Tips

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picture of a rabid wolf spider on the dock one of the common wolf spiders
Wolf spiders (family Lycosidae), hunting spiders found in homes and gardens across North America, walk, or more often run, along the ground and among rocks and leaf piles searching out prey.

Over a dozen different genera, consisting of over two hundred species call some part of the United States home, making them one of the most abundant and commonly seen spiders.

Wolf spider identification begins by finding spiders with body patterns similar to the patterns on the spiders presented here. Grass spiders superficially resemble wolf spiders, so if the spider is near a funnel web, the odds are it’s a grass spider.

A few articles published by The National Institute of Health address wolf spider bites, summarizing them as follows,

“Because of their dark color and hunting habits, wolf spiders (Lycosidae) are often confused with the much more dangerous brown recluse spider (Loxosceles reclusa). Unlike the brown recluse spider, wolf spider envenomation seldom causes cutaneous necrosis or systemic symptoms.”

Like all spiders, wolf spiders bite, but their bite is considered more annoying than dangerous.

Wolf Spiders and Nursery Web Spiders: Identification

Despite the name, the rabid wolf spider (Genus Rabidosa), is not an aggressive, rabies carrying scourge of the earth. In fact, rabid wolf spiders are a fairly common and docile eastern wolf spider genera.

Most Raidosa species measure around one inch in length and share the physical characteristic of having distinct light stripes on a brown body. The picture at the top of the page highlights a chevron pattern on the bottom of the abdomen.

picture of the eye formation for a nursery web spider
Typically the way female wolf spiders and nursery web spiders carry the egg sac serves to distinguish the two types of spiders. Female wolf spiders carry the egg sac on the bottom of the abdomen. Female nursery web spiders carry the egg sac in the mouth.

What happens when there are no egg sacs to help with ID? Well, because their bodies often change appearance to blend in with the environment, the number of brown to gray colored spiders makes for very confusing identification.

With few exceptions, it would be easy to confuse a variety of wolf spiders and some of the nursery web spider species. This is especially true in the Eastern United States, where the Nursery Web spiders (including fishing spiders) are most dominant.

Eye pattern represents the first spider identification clue when deciding between families. The picture at the top of the page, for example, shows a spider with two rows of eyes. That’s the basic form for members of the nursery web spider category.

picture of the eye formation for a wolf spider
The next picture shows an eye pattern of four eyes on the bottom row and two rows of two eyes each. That’s they typical eye pattern for wolf spiders.

Identifying wolf spiders by body pattern is almost a non-starter because most of the approximately two hundred and forty wolf spider species look very similar. Their looks can also change over time.

For example, the eighty or so thin-legged wolf spiders, the most common group of wolf spiders, . One might think that the presence of thin legs would be a good field identification clue.

That’s partially correct. Nonetheless, thin legs are a physical trait of wolf spiders in the genus Acantholycosa. The difference between the two groups is the number of tibial spines, or hair like protrusions from the tibia on the first leg.

So, guessing thin legged wolf spider for any particular specimen will only get you so far. Accurate identification of thin legged spiders requires the use of a macro lens to get a picture that shows the spines on the tibia.

picture of Hogna frondicola, one of the larger wolf spiders
Size might help with identification of some wolf spiders. Species in the Hogna and Tigrosa genera, expecially the females, have bodies between three-quarters of an inch and one and one-half inches.

They are the largest of the wolf spider species. The picture shows Hogna frondicola, an Indiana wolf spider species with no common name.

The Carolina Wolf Spider (Hogna carolinensis) ranks as the largest of the Hogna species.

It inhabits a variety of primarily southern ecosystems, and home consists of a ground burrow. Their hunting occurs mostly at night.

Females often overwinter in residential areas, startling unsuspecting homeowners when they run from under a board or other ground based object. In 1990 the South Carolina designated the Carolina Wolf Spider as the official state spider.

picture of a large Hogna Spider in the Wolf Spider family
Here’s another Hogna species. It might be H. antelucana. However, without a look at the under side of the abdomen, any identification would be inconclusive.

picture of a wolf spider with a brown body
The following two pictures show similar sized spiders with muted color bodies. The easiest identification is that a brown wolf spider is pictured above.

picture of a wolf spider with a gray body
Wolf spider with a gray body.

picture of a Banded Fishing Spider, dolomedes-vittatus
Size does not always help differentiating between wolf spiders and nursery web spiders. Many of the nursery web and fishing spiders, especially the females, have bodies that reach one inch in length. Add in long, thin legs and they are fairly large spiders.

Apart from the Six-spotted Fishing Spider, identifying Dolomedes fishing spiders often turns into an exercise in guessing. Five species are present in the Northeast and New England forest areas. Four of those species have ranges that extend through most of the East and Midwest.

With some slight differences, they look very similar to eachother, and to wolf spiders. For example, think writing when hearing the formal name, Dolomedes scriptus. The spider has a distinct W markings on the abdomen, outlined in white.

picture of a White-banded Fishing Spider
The White-banded Fishing Spider has a white band across the face.

picture of a Dark Fishing Spider
Just guessing the Dark Fishing Spider (Dolomedes tenebrosus).

picture of a female Nursery Web Spider (Pisaurina mira)
Nursery Web Spider is the dominant species of the east.