In this paper we present a thorough revision of the sciathis species group of the butterfly genus Bicyclus (Kirby). Type materials are discussed and in several cases lectotypes are assigned to specimens from original type series. Four new, and morphologically distinct, species are described (B. elishiae Brattström sp.n., B. heathi Brattström sp.n., B. sigiussidorum Brattström sp.n. and B. subtilisurae Brattström sp.n.), along with a comprehensive molecular phylogeny that includes exemplar taxa of all currently recognized species. We also investigate the types of all previously synonymized taxa and in the process invalidate the name B. ewondo Libert. This was done after finding the previously missing holotype of B. makomensis (Strand), which clearly belongs to the same species and thereby gives the older name priority. The phylogeny showed that some distinctly different species were surprisingly closely related, suggesting a high rate of morphological evolution in parts of the sciathis group. The distributional records for the group are updated after investigating over 1700 specimens kept in a range of museum collections. Many species previously thought to be broadly sympatric were found to have much more restricted ranges, with the previous overestimations probably based on misidentified specimens. The higher level of allopatry now established will make identification of many morphologically similar species easier. The fact that species often have smaller ranges than previously known, meaning that the level of endemism for African butterflies is likely to be higher than current estimates, has important implications for conservation management. An identification key for males of all 13 currently recognized species in the species group is included.

中文翻译：

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修订 Bicyclus sciathis 物种组（鳞翅目：蛱蝶科），描述了四个新物种并修正了分布记录

在本文中，我们对蝴蝶属 Bicyclus (Kirby) 的 sciathis 物种组进行了彻底的修订。讨论了类型材料，并在一些情况下为原始类型系列的标本分配了选型。描述了四种形态不同的新物种（B. elishiae Brattström sp.n.、B. heathi Brattström sp.n.、B. sigiussidorum Brattström sp.n. 和 B. subtilisurae Brattström sp.n.），以及一个全面的分子系统发育，包括所有目前公认的物种的典型分类群。我们还调查了所有以前同义的分类群的类型，并在此过程中使名称 B. ewondo Libert 无效。这是在找到先前缺失的 B. makomensis (Strand) 正模后完成的，该正模显然属于同一物种，因此优先考虑旧名称。系统发育表明，一些明显不同的物种惊人地密切相关，这表明部分坐骨鱼群的形态进化率很高。在调查了一系列博物馆藏品中保存的 1700 多个标本后，该小组的分布记录得到更新。许多以前被认为是广泛同域的物种被发现有更多的限制范围，之前的高估可能是基于错误识别的标本。现在建立的更高水平的同种异体将使许多形态相似的物种更容易识别。事实上，物种的分布范围通常比以前已知的要小，这意味着非洲蝴蝶的特有水平可能高于目前的估计，这对保护管理具有重要意义。