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Pisaurina mira

### Identification The Nursery Web Spider (*Pisaurina mira*) is a master of earthy camouflage, typically sporting a palette of tans, ochres, and rich browns. To identify one in the field, look for its signature "racing stripe"—a broad, dark median band running from the cephalothorax to the tip of the abdomen, often framed by elegant, wavy white margins. While they resemble Wolf Spiders, you can distinguish them by their eyes (arranged in two horizontal rows) and their distinctive resting posture: they often sit on a leaf with their front two pairs of legs stretched straight forward and pressed together, creating a singular, needle-like silhouette. Females are substantial, reaching up to 15mm in body length, while males are slightly slighter.

### Habitat & Range This species is a staple of Eastern North America, ranging from Ontario and Quebec down to the Gulf Coast. They are "edge" specialists, thriving in the transitional zones where meadows meet woodlands. You’ll find them patrolling tall grasses, ferns, and shrubs. They prefer vertical architecture, using the height of herbaceous plants to survey for prey and find sun-drenched spots for thermoregulation.

### Behaviour Observing a *P. mira* is a lesson in maternal devotion. Unlike many spiders, the female carries her large, spherical egg sac beneath her prosoma, gripped firmly by her chelicerae and pedipalps. Just before the spiderlings emerge, she constructs a "nursery"—a silk tent spun among folded leaves—where she deposits the sac and stands guard nearby, fiercely defending her brood against predators.

### Diet These are active, diurnal ambush predators. They do not use webs to catch food; instead, they sit motionless on foliage, sensing the minute vibrations of an approaching insect. With explosive speed, they lunge at flies, moths, and even other spiders, delivering a quick, paralyzing bite.

### Fascinating Fact To avoid being cannibalized during courtship, the male *Pisaurina mira* presents the female with a "nuptial gift"—an insect wrapped carefully in silk. However, some males are "cheaters"; they will wrap up a useless plant seed or an empty insect husk, hoping the female won't notice the deception until he has finished mating and made his escape!

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