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''Portia schultzi'' is a jumping spider which ranges from South Africa in the south to Kenya in the north, and also is found in West Africa and Madagascar. In this species, which is slightly smaller than some other species of the genus ''Portia'', the bodies of females are 5 to 7 mm long, while those of males are 4 to 6 mm long. The carapaces of both sexes are orange-brown with dark brown mottling, and covered with dark brown and whitish hairs lying over the surface. Males have white tufts on their thoraces and a broad white band above the bases of the legs, and these features are less conspicuous in females. Both sexes have tufts of orange to dark orange above the eyes, which are fringed with pale orange hairs. Males' abdomens are yellow-orange to orange-brown with blackish mottling, and on the upper sides are black and light orange hairs, and nine white tufts. Those of females are pale yellow and have black markings with scattered white and orange-brown hairs on the upper side. ''P. schultzi'' has relativity longer legs than other ''Portia'', and a "lolloping" gait.〔 While most jumping spiders focus accurately up to about 75 cm away, ''P. schultzi'' responds to a maximum of about 10 cm in good light, and ignores everything in very subdued light. For prey, ''P. schultzi'' prefers web-based spiders, then jumping spiders, and finally insects. The females of ''P. schultzi'' and other ''Portia'' species build "capture webs" to catch prey, and often join their own webs on to web-based spiders to catch the other spiders or their prey. If a ''P. schultzi'' female is mature, a male ''P. schultzi'' will try to copulate with her, or cohabit with a subadult female and copulate while she is moulting. They usually mate on a web or on a dragline made by the female, and ''P. schultzi'' typically copulates for about 100 seconds, while others in the genus can take several minutes or even several hours. Females try to kill and eat their mates during or after copulation, and subadult females mimic adult females to attract males as prey. Contests between ''Portia'' females are violent, and embraces in ''P. schultzi'' typically take 20 to 60 seconds. Sometimes, one female knocks the other on her back and the other may be killed and eaten if she does not right herself quickly and run way. When hunting, ''P. schultzi'' mature females emit olfactory signals that reduce the risk that any other females, males, or juveniles of the same species may contend for the same prey. == Body structure and appearance == The bodies of female ''P. schultzi''s are 5 to 7 mm long (smaller than other ''Portia'' species), while those of males are 4 to 6 mm long. The carapaces of both sexes are orange-brown with dark brown mottling, and covered with dark brown and whitish hairs lying over the surface. Males have white tufts on their thoraxes and broad white band above the bases of the legs, and these features are less conspicuous in females. Both sexes have tufts of orange to dark orange above the eyes, which are fringed with pale orange hairs. Females' chelicerae are pale yellow with black markings at the ends, while males' orange-brown with darker markings, and those of both sexes have pale orange and white hairs. The abdomens of females are pale yellow with black markings and the upper sides have scattered white and orange-brown hairs. Males' abdomens yellow-orange to orange-brown with blackish mottling, and on the upper sides are black and light orange hairs, and nine white tufts. Those of females' are pale yellow and have black markings with scattered white and orange-brown hairs on the upper side, but no tufts. The legs of both sexes are unusually long and slender, and those of male's are orange-brown with darker markings while those of females are light yellow with blackish markings. In both sexes the final two segment of each leg has no other decorations, but the other segments in both sexes have brownish hairs and many robust spines, and those of males also scattered white tufts. The palps of both sexes have pale yellow hairs and white fringes. All species of the genus ''Portia'' have elastic abdomens, so that those of both sexes can become almost spherical when well fed, and females' can stretch as much when producing eggs. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Portia schultzi」の詳細全文を読む スポンサード リンク
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