Large Spiders in Texas?

Most of these images come from the original photographs used in our colleague John Jackman’s book, A Field Guide to the Spiders and Scorpions of Texas, 1997. John died suddenly a few years ago and he left for us his entire slide collection of excellent insect and spider photos. Many of the finer images on this website were taken by John and we are indebted to him.

How big do Texas wolf spiders get?

These wolf spiders are dark brown in color, with stripes running down their abdomen and cephalothorax. Their legs can vary in color, with front legs appearing darker than the rest. Male wolf spiders are small in size, measuring up to 13 mm in length, while females can grow to be as large as 20 mm long.

What kind of spiders are common in Texas?

Common spiders in Texas include American house spiders, wolf spiders, brown recluse spiders, black widow spiders, and jumping spiders.

What is the Texas State spider?

Adult Description: The huntsman spider (Heteropoda venatoria) also called the giant crab spider or banana spider, is 20-23 mm in length with female’s body length at the upper range compared to males. Females have an overall brown body and a larger abdomen with a tan marginal band on the carapace.

How many species of spiders are in Texas?

There are almost 900 species of spiders in Texas. Only 2 groups of spiders in Texas are considered poisonous to humans.

North America is home to over 3,400 species of spiders, ranking 7th in diversity of all organisms. Known as arachnids, spiders are air-breathing arthropods with 8 legs and use their fangs to inject venom into their prey. Texas alone has over 900 species of spiders, with many of them inhabiting Austin, Texas. Although not all venomous, it is key to be able to identify the species you may be in contact with.

The Yellow Garden ORB Weaver spider can be identified by the dorsal markings on the carapace and abdomen and the greatly elongated hind spinnerets. These spiders often build webs in areas adjacent to open, sunny fields where they can stay concealed and protected from the wind.

Comparable to a bee sting, a bite from this spider results in slight redness and swelling and is not considered an issue for a healthy adult. Though they are not aggressive spiders, those with compromised immune systems, such as the very young or elderly, should exercise caution. These spiders are usually found in warm places under logs, rocks, bricks, leaf litter, or close to woodlice.

Their days are spent in a silken retreat in the crevices of partially decayed wood, and sometimes construct tent-like structures in indents of various large rocks. As surprisingly poor climbers, these spiders generally remain on the ground, hidden under natural shelters such as the edges of rocks or in their own burrows. Nest sites are often near holes produced by small animals, around construction openings and wood piles, or Low shrubs.

Indoors, black widow spiders tend to gravitate to dark, undisturbed sites such as behind furniture or under desks. Female widow spiders have unusually large venom glands and their bite can be particularly harmful to humans. However, despite their notoriety, bites from a black widow spider are rarely fatal or produce serious complications.

Since the web is not intended to catch prey, they tend to appear disorganized and are built most commonly near ground level. When dwelling in human residences, they seem to favor cardboard, possibly because it mimics the rotting tree bark of their natural habitat. The brown recluse bears a potentially deadly hemotoxic venom that may affect a human negatively, although most bites are minor with no necrosis.

However, a small number of brown recluse bites do produce severe dermonecrotic lesions (i.e. necrosis). The Gray Wall Jumper Spiders are dorso-ventrally flattened and are covered with short, dense, grayish-white hairs. These spiders are generally found in grassland and prairie environments, while they can also frequent yards and indoor spaces.

These spiders have two large, strong front legs that are used to grasp prey, and range in size from 4.063-7.62 mm in length (0.16 to 0.3 in). As this particular spider does not spin a web, they generally reside among leaves or bark, where they await prey and can sit in the open. These spiders are known for their long legs, hence why they are often called daddy-long-legs. Females have a body length of about 9 mm (~.3 in) and males are slightly smaller.

These spiders build loose, irregular, tangled webs in corners, and hang upside down on the underside of them. When disturbed on its web, the Cellar spider has the habit of rapidly shaking its body in a rotary movement to confuse and entangle its prey. According to University of California Riverside , There is no reference to any pholcid spider biting a human and causing any detrimental reaction.

Spiders found in Texas include 88 unique species from confirmed sightings by contributing members of Spider ID. It is important to remember that spiders seen in Texas are not bound by the territorial lines decided on by humans, therefore their distribution is subject to change. Occasionally, spiders can be found well outside of their known range due to being intentionally or accidentally transported by humans in cars, luggage, and other belongings.