Hackled-silk
Guides
Uloborus campestratus
Featherlegged Orb-weaver, Hackled Band Orb-weaver
Uloborus campestratus is a small cribellate orb-weaving spider in the family Uloboridae. It is one of five Uloborus species in North America, distributed from the United States to Venezuela. Like all uloborids, it lacks venom glands and subdues prey through extensive silk wrapping and constriction rather than venomous bites. The species builds small horizontal orb webs with hackled, non-sticky capture threads produced by its cribellum and fluffed using a calamistrum comb on its hind legs.
Uloborus glomosus
Featherlegged Orbweaver
Uloborus glomosus is a small cribellate orb-weaving spider and the only member of its genus recorded in Canada. It belongs to the family Uloboridae, a group distinguished by the absence of venom glands. The species captures prey using hackled, non-sticky silk produced by a specialized spinning organ called the cribellum. Prey is subdued through extensive wrapping and constriction rather than venomous bite.