Wolf Spider, Grass Spider, or Ground Spider
Lycosa tarantula or Rabidosa punctulata (Likely Lycosidae family)
Lycosidae (Wolf Spiders), Order Araneae. Key family characteristics include robust bodies, excellent eyesight with a distinctive eye arrangement (four small eyes in a front row, two very large eyes above them, and two medium eyes on top), and an active hunting lifestyle without building webs.
Physical Description
Robust, athletic body with a distinct cephalothorax and elongated abdomen. Covered in fine, sensory hairs. The cephalothorax is stout and features characteristic longitudinal striping. Proportions show strong running legs attached to a prominent prosoma.
Size Estimate
Estimated body length of approximately 15-25 mm with a leg span of 40-60 mm, typical of a medium to large adult wolf spider.
Coloration & Markings
Dull earthy tones featuring browns, grays, and tans with distinctive longitudinal pale or dark stripes running down the cephalothorax and abdomen.
Web Type
Wolf spiders do not build webs to catch prey. They are active roaming hunters that rely on silk only to line their burrows or wrap egg sacs.
Eye Arrangement
Arranged in three distinct rows: a bottom row of four small eyes, a middle row with two very large prominent eyes facing forward, and a top row with two medium-sized eyes set further back on the head.
Leg Characteristics
Long, robust, and muscular legs equipped with prominent spination for running down prey. They lack specialized web-spinning structures like a calamistrum, featuring simple claw tufts instead.
Venom & Safety Information
Venom Information
Neurotoxic/cytotoxic venom used strictly to immobilize prey. Low potency regarding humans; it is not considered medically significant.
Medical Significance
Harmless to humans. Bites are rare and typically only occur if the spider is directly pressed against the skin. Symptoms are mild, comparable to a bee sting, involving localized pain, redness, and swelling.
Safety Recommendations
Keep hands away if encountered; gently trap the spider under a cup and slide a piece of paper underneath to safely relocate it outside.
Habitat & Behavior
Habitat & Range
Found worldwide in varied terrestrial habitats including grasslands, forests, gardens, and occasionally wandering into homes or buildings seeking shelter.
Behavior & Temperament
Active nocturnal or crepuscular hunter relying on speed and agility. Generally docile unless cornered or handled, displaying defensive postures rather than unprovoked aggression.
Diet & Prey
Carnivorous predator feeding on a wide variety of ground-dwelling insects, beetles, crickets, and occasionally smaller spiders.
Seasonal Activity
Most active during spring, summer, and early autumn when temperatures are warm and prey is abundant. Overwinters in protected burrows or under debris.
Description
A robust, ground-dwelling predator belonging to the wolf spider family. Known for its sharp vision, athletic build, and habit of hunting on foot rather than using a web.
Key Features
Distinguished by its robust body, earthy coloration with longitudinal stripes, distinct eye arrangement featuring two large prominent forward-facing eyes, and active hunting behavior.
Similar Species
Grass spiders (Agelenidae) which build funnel webs, and nursery web spiders (Pisauridae) which carry egg sacs in their jaws rather than attached to spinnerets.
Life Cycle
Females produce round silk egg sacs which they carry attached to their spinnerets. Upon hatching, hundreds of spiderlings climb onto the mother's back and ride there for the first week or two of life.
Ecological Importance
Serves as a crucial natural predator in controlling insect and pest populations in gardens, agricultural fields, and natural ecosystems.
Conservation Status
Not evaluated by the IUCN, highly resilient, and maintains stable, widespread populations globally.
Interesting Facts
Wolf spiders are famous for maternal care, as females carry their hundreds of spiderlings on their abdomen. Their eyes shine brightly in a beam of light due to a reflective layer called the tapetum lucidum.
Photography Tips
Use natural lighting or an external flash, shoot from a low angle at eye level, and maintain a safe distance while using a macro lens to capture eye arrangement and leg spination.
Identified: 2026-10-06T21:24:17.888976