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Phidippus johnsoni, the red-backed jumping spider or Johnson jumping spider, is one of the largest and most commonly encountered jumping spiders of western North America. It is not to be confused with the unrelated and highly venomous redback spider ( Latrodectus hasselti ).
Verrucosa arenata, also known as the triangle orb weaver, arrowhead spider, and arrowhead orbweaver, is a species of orb-weaver spider found across North America. [2] It is one of the few known large orb-weaver spiders that sits facing upwards in its web. [ 3 ]
Woodlouse spiders are usually found under logs, rocks, bricks, plant pots and in leaf litter in warm places, often close to woodlice.They have also been found in houses. They spend the day in a silken retreat made to enclose crevices in, generally, partially decayed wood, but sometimes construct tent-like structures in indents of various large rocks.
“The hobo spider can inflict a painful bite that results in localized red swelling and some pain, but no necrotic lesion,” Potzler says. Usually, symptoms will get better within 24 hours with ...
True to their name, female Black Widow spiders have shiny black bodies and a red hourglass shape on the underside of their abdomen. Females are traditionally larger than males, their bodies can ...
Females can reach 12 mm body length, males 7 to 11 mm. Both sexes have blue-green iridescent chelicerae, a black cephalothorax and limbs, and a bright red abdomen with a median black stripe (similar to the female P. johnsoni). Between the black and red areas on the posterior part of the dorsal abdomen there are two minute white spots.
Cyclocosmia ricketti; A habitat B–D habitus of female (XUC-2013-013) E abdomen, lateral view F posterior portion of opisthosoma, ventral view, showing spinnerets G female genitalia (XUC-2013-013), dorsal view H female genitalia (tianzishan-2016), dorsal view I showing opisthosomal disc in plugging position (XUC-2013-013) J–L abdomen, caudal view (J XUC-2013-013 K Tianzishan-2016 L C-2016-001).
They spin webs as thick as 10 feet wide and offer several benefits of sticking (or spinning) around.