Rediscovery of Philopona vibex (Erichson, 1834) (Insecta: Coleoptera: Chrysomelidae: Galerucinae: Alticini) in Taiwan, with Notes on Its Biology

台灣產縱紋胖爪葉蚤的再次發現與生物學注解（鞘翅目：金花蟲科：螢金花蟲亞科：葉蚤族）

李奇峰(Chi-Feng Lee) ； 曹美華(Mei-Hua Tsou)

《台灣農業研究》 69卷4期 (2020/12) Pp. 265-273

https://doi.org/10.6156/JTAR.202012_69(4).0001

摘要

Flea beetle, Philopona vibex (Erichson, 1834), is widespread in Asia but largely unknown from Taiwan. The first and only record in Taiwan was cited by Chûjô (1936) based on one specimen collected by J. Sonan in 1918. There has been no record of taxonomic publication since then. Here we re-described the species based on specimens collected from China, Japan and Taiwan, including two specimens from Ilan by Hou-Jay Chen on May 17, 2009, and six specimens from Taipei by Su-Fang Yu and Mei-Hua Tsou in March of 2016. The life cycle of this species is briefly described based on the successful rearing of 50 adults from eggs. Diagnostic characters are illustrated, including antenna, penis, gonocoxae, abdominal ventrite VIII in both sexes, and abdominal ventrite V in female. Its rarity in Taiwan is discussed in the context of its biology.

關鍵字

Leaf beetles ； Taxonomy ； Hygrophila ； Endophallic sclerites

並列摘要

縱紋胖爪葉蚤﹝Philopona vibex（Erichson, 1834）﹞是廣泛分布於亞洲的葉蚤，過去在台灣僅有楚南仁博在1918年採得的一隻標本紀錄。台灣金花蟲研究團隊從2005年開始普查台灣的金花蟲，藉由發現此葉蚤的偏好食草而找到穩定的族群；本文檢查了中國、日本及台灣的縱紋胖爪，對其重新描述，並針對診斷特徵描繪線圖，包括觸角、雄性生殖器、雌蟲生殖突基節、雌蟲受精囊、雙性的第五腹節及雌蟲的第八腹節腹板；生活史紀錄則是基於由親蟲產卵開始飼養至50隻子代成蟲所得的結果，並根據野外觀察與飼養經驗所得之生物學特性來探討此蟲何以在台灣如此稀少的原因。

並列關鍵字

金花蟲 ； 分類學 ； 水蓑衣 ； 內囊骨