Flea Jumping Spider: How to Identify

The Flea jumping spider (Naphrys pulex) is a widely-distributed spider of the Salticidae family, native to Canada and America, and has been dubbed a separate species by entomologists.

Flea jumping spider
Absolutely adorable, tiny little Naphrys pulex jumping spider holding his pedipalps up. Photo credit: Shutterstock.com/Sari Oneal

Flea Jumping spider: Description

Male Flea jumping spiders present an eye-catching sight, with their cephalothorax and abdomen boasting a stunning pattern of gray and black mottling, complemented by vibrant orange coloring around the sides.

Flea Jumping spider: Behavior.

You can spot the Flea jumping spider in tall grasslands and woody regions and frequently in mesic hardwood forests with much leaf litter. Finding this species near structures, tree bark, or outcrops is also possible! No bigger than 5.5mm—some even smaller than a dime (this being the largest of all four North American Naphrys)—these spiders feed mainly on insects and other arthropods.

In the realm of jumping spider courting, there remains a plethora of untapped opportunities for exploration. For example, barely any studies have documented female behavior during courtship, yet some species, such as the Flea jumping spider, demonstrate that females actively participate in the display.

With so much undiscovered knowledge still to uncover, we could be on our way to understanding more than ever before about this fascinating topic!

Further recommended reading about spiders.

Spider pages: Learn how to identify and avoid these spiders.

Tiger wolf spider.

Cross orb-weaver spider.

Hump-backed orb weaver.

Triangulate cobweb spider.

Carolina wolf spiders.

Striped fishing spiders.

White-Jawed jumping spiders.

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Peppered jumping spiders.

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Spinybacked orb weavers.

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White spiders.

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Dennis V. Gilmore Jr.

Dennis V. Gilmore Jr. is a former Marine Sergeant and the author of several books, including two on night hunting coyotes and red and gray fox. He has written several hundred articles on predator hunting for ThePredatorHunter.com.

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