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Evarcha arcuata  (Clerck, 1757)
≤ 1900   1901-1979   1980-2005   2006 ≤
Description: Female carapace with dark-brown, somewhat shiny head. Thorax brown,unevenly clothed with white hairs. Abdomen mottled with brown, white and black and with oblique streaks posteriorly in these colours, sometimes the streaks form chevrons. The male has a complete different appearance, almost uniform dark-brown to black and with a metallic sheen. Clypeus with two distinct transverse rows of white hairs, and below these, another transverse row is present on the chelicereae. Eyes of the anterior row are ringed with white hairs. The femur, patella and tibia og legs I are enlarged. Size: Female 6-8 mm; male 5-6 mm.

Genus: Evarcha Simon, 1902. Characters of genus: Medium-sized, stout spiders with the sexes usually very different in general appearance. The members of the genus are also very different, especially the males. The total length of patella and tibia IV is about the same or only slightly longer than that of leg IIII in contrast to the genera Sitticus, Euophrys and other related genera,.

Family: Salticidae Blackwall, 1841 (Jumping spiders). Characters of family: Small to medium-sized, shortlegged spiders easily recognizable by the characteristic eyes arranged in three rows. The anterior row of eyes is situated on a more or less vertical face, the medians being very large, the laterals somewhat smaller and set higher on the head. The second row of eyes consists of two very small, often minute or vestigial eyes set further back on the head. The two eyes of the posterior row are about the same size as the anterior laterals, and are set about halfway back on the carapace at the edges of the head. The anterior medians are highly sophisticated providing acute vision used to leap accurately while moving around as well as capturing prey and escape efforts.
Male
Male
Male
Male
Male
Female
Female
Female abdominal markings
Female
Female
Female
Female
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