An Amendment on the Record of Rhyothemis fuliginosa Selys, 1883 in Taiwan-a Newly Discovered Gynomorphic Wing Pattern in Female R. regia regia (Brauer, 1867) (Odonata: Libellulidae)

The identity of Taiwanese Rhyothemis fuliginosa Selys, 1883 is clarified to be the gynomorphic female of R. regia regia (Brauer, 1867). Female Taiwanese R. r. regia differ from female R. fuliginosa mainly in having paler face with weak metallic lustre, anteriorly more strongly incurved postclpyeus and stouter cerci. The reported wing patterns of various subspecies of R. regia are compiled from the literature for comparison. A transitional variation of the female wing pattern of Taiwanese R. r. regia varying from andromorphic to gynomorphic is illustrated. The case of range expansion caused by climatic warming in R. r. regia and other libelullid dragonflies in Taiwan is elucidated.

關鍵字

Polymorphic ； subspecies ； climatic warming ； range expansion

並列摘要

臺灣產黑翅蜻蜓（Rhyothemis fuliginosa Selys, 1883）的身份經澄清為藍黑蜻蜓（R. regia regia（Brauer, 1867））的雌型翅斑雌蟲。臺灣藍黑蜻蜓雌型翅斑雌蟲與黑翅蜻蜓雌蟲的差異為臉部顏色較淡，金屬光澤較弱，後唇基前緣內凹較深而明顯，且尾毛較粗。文中經由文獻回顧整理藍黑蜻蜓各亞種已被報導過的翅斑變化以供比較，並附圖說明臺灣藍黑蜻蜓雌蟲翅斑的連續性變異。文末亦說明由於氣候暖化，所導致的藍黑蜻蜓以及其他臺灣蜻蜓科物種分布範圍擴大的例子。

並列關鍵字

多型性的；亞種；氣候暖化；分布範圍擴大

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