相簿列表 » 蜘蛛目 Araneae

蜘蛛為蛛形綱中數量最多的一目，數量種類繁多，其中以不結網捕獵者居多數，琥珀中帶有蛛網者甚為少見，蜘蛛進行捕獵昆蟲的畫面更是稀奇。蜘蛛頭部上方的八個單眼是鑑定科別的重要依據，口器兩側的觸肢可判斷其性別，雄蛛觸肢前端呈圓球狀，雌蛛則較為細長。這對長在蜘蛛頭頂上像「拳擊手套」的物 體是雄蜘蛛的生殖器官，為鬚肢前跗節( 最末端一節 ) 膨大所形成，內有卷曲的輸精管，充血時可和雌蜘蛛交配 ；雌蜘蛛的外性器則是在腹面，雄蜘蛛以觸肢作為傳送精子的工具。
Spiders are the largest group in Arachnida with abundant species. Most of them are not hunting by cobwebs. There are very few spider webs in amber; it is even rare to find scenes of spiders catching insects. The important identifying clue is 8 single eyes on the upper head of a spider, while pedipalps on both sides of mouthparts can tell its sex because the male’s are ball-shaped in the front end and the female’s more slender. A pair of boxing glove-like objects on the top of a spider’s head is the male’s genitals, formed by enlarging the tarsusi (the last segment) in front of palps with coiled sperm ducts, to mate with females during injection. The female has external genitals on the abdomen, while the male transfers sperm via pedipalps.