Red-Legged House Spiders: A Unique Arachnid Species to Watch Out For - Spider Insect

Red-Legged House Spiders: A Unique Arachnid Species to Watch Out For

Red-legged house spiders are a unique arachnid species that thrive in the human habitat. They belong to the family of spiders known as “Pholcidae” or “daddy long-legs spiders.” These slender, delicate, and leggy creatures can be found almost anywhere in your home. The name “red-legged house spider” is derived from their distinct reddish-brown legs and pale yellow or tan-colored bodies.

Identification and Physical Appearance of Red-Legged House Spiders:

Red-legged house spiders are small and can grow from approximately 4-10 mm long. They have long thin legs that make them look much larger than they actually are. Their bodies are elongated, round, and covered in fine hair, which gives them their velvety appearance. They are yellowish-brown or light tan, and their eight legs are a dark reddish-brown or darker than the body.

Behavior and Habitat:

These spiders are known for their distinctive behavior; they often hang upside down in their webs, which they weave around their habitats. They prefer to live in warm, humid environments such as bathrooms, cupboards, basements, and any other quiet, dark places. They do not create elaborate webs like other spiders, but their webs are handiworks and can resemble a tangled mess, more like a ghostly curtain. They are solitary creatures and hide from humans whenever they can.


Red-legged house spiders are insectivores and feed mainly on gnats, flies, mosquitoes, and other small insects. They catch their prey using a combination of venom and webbing. When insects become trapped in their webs, the spider injects venom, which paralyzes its prey before it consumes it.

Benefits of Red-Legged House Spiders:

Despite being a part of the phobia of spiders, red-legged house spiders also offer some practical benefits in controlling other insects in our homes. They can help control pests such as mosquitoes, flies, and other tiny insects, making them useful to our ecosystem. They play an essential part in maintaining a balance among the insect population in our homes.

Safety and Precautions:

Although red-legged house spiders are not aggressive, they are venomous and can bite when provoked. Their venom is, however, not harmful to humans, and their bites are not fatal, causing only minor irritation, swelling, or itching. One must exercise caution and avoid invading their territory or trapping them with bare hands.


Red-legged house spiders are a unique, harmless arachnid species and are excellent at controlling insect populations. These spiders are usually peaceful creatures that prefer to avoid human contact. So, the next time you encounter a red-legged house spider in your home, you can appreciate these amazing creatures from a distance.

Leave a Reply

Your email address will not be published. Required fields are marked *