Slender-crab-spider
Guides
Tibellus chamberlini
Chamberlin's Slender Crab Spider
Tibellus chamberlini is a species of running crab spider in the family Philodromidae, first described by Gertsch in 1933. It belongs to a genus of slender, elongate spiders adapted for ambush hunting on grasses and foliage. The species is distributed across the United States and Canada, though specific details of its biology remain poorly documented compared to better-known congeners.
Tibellus duttoni
Dutton's Slender Crab Spider
Tibellus duttoni is a running crab spider in the family Philodromidae, characterized by its elongated body form and grass-mimicking appearance. It hunts by ambush on vegetation rather than building webs to capture prey. The species occurs across much of North America, including the United States, Mexico, and southern Canada. Adults are relatively small, with females typically larger than males.
Tibellus maritimus
Maritime Running Crab Spider
Tibellus maritimus is a species of running crab spider in the family Philodromidae, characterized by its slender body and vertical striped pattern that provides effective camouflage on grasses and foliage. The species is notable within its genus for lacking the two dark dorsal spots on the abdomen that distinguish related species such as T. oblongus and T. asiaticus. It is the only Tibellus species in the Canadian portion of its range without these spots. The spider hunts by ambush, lying flattened on vegetation to capture prey.