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Zelotes sp.

### **The Obsidian Prowlers: *Zelotes* Spiders**

Identification

To find a *Zelotes*, look for what looks like a drop of spilled ink scuttling across the ground. These spiders are typically small to medium (5–10mm) and possess a strikingly uniform, glossy-to-velvety black or dark mahogany coloration. Their bodies are slightly flattened—an adaptation for squeezing into tight crevices—and their legs are robust. The "smoking gun" field mark for this genus is their **tubular, barrel-shaped spinnerets** that project visibly from the rear like tiny exhaust pipes. Unlike many spiders, they lack intricate patterns, appearing as sleek, monochromatic "stealth bombers" of the leaf litter.

Habitat & Range

*Zelotes* is a cosmopolitan genus, found everywhere from the sun-baked Mediterranean scrub to the temperate forests of North America. They are quintessential "ground dwellers," favoring dry, open habitats with plenty of cover. You’ll find them tucked under flat stones, beneath loose bark, or deep within the dry thatch of grasslands. They are particularly fond of sandy soils and rocky outcrops where the thermal mass provides warmth long after sunset.

Behaviour

These are nocturnal wanderers. During the day, they hide in silk-lined retreats; at night, they emerge as high-speed cursorial hunters. They do not spin webs to catch prey. Instead, they rely on explosive speed and a unique "tackling" maneuver. When a *Zelotes* encounters prey, it rapidly circles the victim, dabbing sticky silk directly onto the ground and the prey’s legs to anchor it before delivering a venomous bite.

Diet

As generalist predators, they are the "lions of the leaf litter," feeding on ants, beetles, and even other spiders. Their ability to immobilize larger insects with their specialized silk-tackling technique allows them to punch well above their weight class.

Fascinating Fact

While the spiders themselves are masters of disguise, their **egg sacs** are works of art. A female *Zelotes* creates a flattened, papery disc that looks like a miniature fried egg. Often tinted a surprising pearlescent pink or stark white, she will guard this disc with fierce devotion, frequently staying with her unhatched brood until her own life cycle nears its end.

AI-generated info may be inaccurate. Not a safety guide.