Flea Jumping Spider

Fascinating facts about the Flea Jumping Spider

• In 1846 Nicholas Marcellus Hentz first described this tiny jumper as Attus pulex, and a later 1981 review moved it into the genus Naphrys, anchoring its modern name. Males measure just about 4 mm long, with a 2 mm carapace, while females grow to 4.6-6.1 mm total length and a carapace up to 2.4 mm.
• When a male Naphrys pulex spots a potential mate, he launches a precise dance while the female watches, a behaviour first recorded by George and Elizabeth Peckham in 1889. Their notes were later cited by Edward Bagnall Poulton in his 1890 book The Colours of Animals to argue that female spiders have an aesthetic sense that drives sexual selection. This early example of documented spider courtship shows how visual signals can shape evolution even in creatures only a few millimetres long.
• Naphrys pulex lives across Canada and the United States, mainly in the eastern half of the continent, and you can find it on walls, grass, leaf litter, the ground, and even tree trunks.
• The spider's cryptic coloration, highlighted by a yellowish bar on its abdomen and spotted legs, while the distinct shape of the male's palpal bulb sets it apart from close relatives like Naphrys acerba.
• The spider was originally described in 1846 under the name Attus pulex by the arachnologist Nicholas Marcellus Hentz. Over the following decades the species was moved through several genera, including Habrocestum, before finally being settled in its present genus; the 1981 taxonomic review cemented the name Naphrys pulex that is used today.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia

At a glance

About the Flea Jumping Spider

In the sun-drenched cracks of weathered wood, a tiny, eight-legged virtuoso awaits its moment to strike, for the flea jumping spider is a master of stealth and lightning-fast reflexes, its iridescent eyes scanning the surroundings with an unblinking intensity. With a sudden, explosive burst of power, it launches itself into the air, defying gravity as it pursues its unsuspecting prey with a precision that belies its diminutive size. As it dances across the dusty terrain, its vibrant coloration glints like a shard of splintered jewel, a fleeting glimpse of beauty in a world of intricate, hidden wonders.

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