Spiders of the Genus Metleucauge (Araneae: Tetragnathidae) from Taiwan
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Date
1999-06-??
Authors
陳世煌
黃文俊
Journal Title
Journal ISSN
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Publisher
國立臺灣師範大學生命科學學系
Department of Life Science, NTNU
Department of Life Science, NTNU
Abstract
本研究針對臺灣產之長蹠蜘屬(genus Metleucauge Levi, 1980)蜘蛛進行廣泛採集並詳細比較,結果顯示本屬蜘蛛在臺灣共有三種，即褐腹長蹠蜘(M. chikunii Tanikawa, 1992)、金比羅長蹠蜘(M. kompirensis (Boesenberg et Strand, 1906))和高山長蹠蜘(M. davidi (Schenke1, 1963)。臺灣以往所記載之眼鏡長蹠蜘(M. yunohamensis (Boesenberg et Strand, 1906))證實為褐腹長蹠蜘之誤判，應從目前名錄中暫予刪除。就本屬蜘蛛在臺灣的地理分布而言，褐腹長蹠蜘廣泛分布於本島海拔2,500公尺以下之山區，其北部和中部低海拔山區之部分族群與金比羅長蹠蜘為共域分布(sympatric distribution)。而高山長蹠蜘主要分布在海拔2,000公尺以上之高山地區，目前所知只有在阿里山(海拔2,200公尺)與褐腹長蹠蜘為共域分布，未發現與金比羅長蹠蜘有共域分布的情形。
The spider genus Metleucauge Levi, 1980 in Taiwan is revised in which three species are recognized: Metleucauge chikunii Tanikawa, 1992, M. kompirensis (Boesenberg et Strand, 1906), and M davidi (Schenkel, 1963). A diagnostic key for Taiwanese species is provided in this paper, and each species is also redescribed and illustrated. Metleucauge chikunii is widely distributed through out the whole island below 2,500 m in altitude, and is sympatric with M. kompirensis in the low mountain areas of the northern and central Taiwan. Metleucauge davidi is restricted in the high mountain areas above 2,000 m in altitude, occurs sympatric with M. chikunii at least in Alishan, but is allopatric with M kompirensis in Taiwan. Metleucauge yunohamensis (Boesenberg et Strand, 1906) previously recorded from Taiwan might result from a misidentification, which then should be temporarily excluded from the species list of Taiwan.
The spider genus Metleucauge Levi, 1980 in Taiwan is revised in which three species are recognized: Metleucauge chikunii Tanikawa, 1992, M. kompirensis (Boesenberg et Strand, 1906), and M davidi (Schenkel, 1963). A diagnostic key for Taiwanese species is provided in this paper, and each species is also redescribed and illustrated. Metleucauge chikunii is widely distributed through out the whole island below 2,500 m in altitude, and is sympatric with M. kompirensis in the low mountain areas of the northern and central Taiwan. Metleucauge davidi is restricted in the high mountain areas above 2,000 m in altitude, occurs sympatric with M. chikunii at least in Alishan, but is allopatric with M kompirensis in Taiwan. Metleucauge yunohamensis (Boesenberg et Strand, 1906) previously recorded from Taiwan might result from a misidentification, which then should be temporarily excluded from the species list of Taiwan.