Brattström Oskar, Aduse-Poku Kwaku, Collins Steve C, Brakefield Paul M
University Museum of Zoology, Cambridge University, Cambridge, UK.; Email:
African Butterfly Research Institute, Nairobi, Kenya.; Email:
Zootaxa. 2015 Sep 14;4018(1):57-79. doi: 10.11646/zootaxa.4018.1.3.
The ignobilis-group of the genus Bicyclus Kirby 1871 is revised. The species-group contains six species with a distinct wing pattern, but limited intraspecific variation, distributed across tropical African rainforest. We investigate a set of more than 1000 specimens from a range of museum collections, including some type material, and thoroughly update the biogeographical knowledge for the group. We also describe two new species as members of the group. The included species are: Bicyclus ignobilis (Butler 1870) stat. rev., B. rileyi Condamin 1961, B. maesseni Condamin 1971, B. brakefieldi Brattström 2012, B. ottossoni sp. nov. and B. vandeweghei sp. nov. Due to observing a gradual morphological cline within B. ignobilis without any sharp transitions we suppress the previously identified subspecies B. ignobilis eurini Condamin & Fox 1963 syn. nov. and B. ignobilis acutus Condamin 1965 syn. nov.
对1871年柯比(Kirby)建立的双环蝶属(Bicyclus)的低等类群进行了修订。该物种群包含六个具有独特翅纹但种内变异有限的物种,分布于热带非洲雨林。我们研究了来自一系列博物馆藏品的1000多个标本,包括一些模式标本,并全面更新了该类群的生物地理学知识。我们还描述了该类群的两个新物种。包含的物种有:低等双环蝶(Bicyclus ignobilis)(巴特勒,1870年),修订状态;莱氏双环蝶(B. rileyi),孔达明,1961年;梅氏双环蝶(B. maesseni),孔达明,1971年;布拉德菲尔德双环蝶(B. brakefieldi),布拉特斯特伦,2012年;奥托松尼双环蝶(B. ottossoni),新物种;范德韦赫双环蝶(B. vandeweghei),新物种。由于在低等双环蝶中观察到形态渐变且无明显过渡,我们将先前确定的亚种低等双环蝶欧里尼亚种(B. ignobilis eurini),孔达明和福克斯,1963年,新异名;以及低等双环蝶锐叶亚种(B. ignobilis acutus),孔达明,1965年,新异名予以归并。