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[2] [5] The secondary eyes normally have a light-reflecting layer, the tapetum, that makes the eyes appear pale. [6] The tapetum differs considerably between spider families but can be separated into three main types: PT (primitive type), CT (canoe type), and GT (grate type). Some spiders, such as jumping spiders, have no tapetum in their ...
Phidippus princeps is a species of jumping spider found in Canada and the eastern United States. These jumping spiders' vision exceeds by a factor of ten than that of a dragonfly's, which have the best vision among insects. [1] Feeding
This dynamic adjustment is a means of compensation for the narrowness of the static field of vision. Movement of the retina in jumping spiders is analogous to the way many vertebrates, such as primates, move their entire eyes to focus images of interest onto their fovea centralis. In jumping spiders with a translucent carapace, such movements ...
While the male is strikingly red on top, with a black band in the frontal eye region and sometimes with white setae on the forelegs, the female is of a rather inconspicuous brown color. It is one of the species of jumping spiders which are mimics of mutillid wasps (commonly known as "velvet ants"); several species of these wasps are similar in ...
Phidippus audax are commonly referred to as "bold jumping spiders" or "bold jumpers". [8] The species name, audax, is a Latin adjective meaning "audacious" or "bold". [8] This name was first used to describe the species by French arachnologist Nicholas Marcellus Hentz, who described the spider as being, "very bold, often jumping on the hand which threatens it". [9]
Attulus distinguendus, also called the distinguished jumper spider, [2] is a species of spider in the family Salticidae, the jumping spiders. Until 2017, it was placed in the genus Sitticus . It inhabits central and western Europe, the Palaearctic region, and eastern Asia.
Phidippus clarus, also known as the brilliant jumping spider, is a species of jumping spider (family Salticidae) found in old fields throughout eastern North America. It often waits upside down near the top of a plant, which may be useful for detecting prey, and then quickly jumps down before the prey can escape.
Menemerus semilimbatus are about 6.5–8.4 millimetres (0.26–0.33 in) long, the male being slightly smaller than the female. These fairly big jumping spiders are dorso-ventrally flattened and are covered with short dense, grayish-white hairs, with hairy whitish palps and a white band on the side margins of the carapace, showing also a small white, triangular marking in the middle.