The relationships among lauxaniid genera Calliopum Strand, 1928, Lauxania Latreille, 1804 and related species from genus Sapromyza Fallen, 1820 are not fully understood. In this work, we provide a detailed morphological study of terminalia of selected species along with Bayesian phylogenetical analysis of DNA sequences of 4 gene fragments (16 S rRNA, 28 S rRNA, EF1-alpha and COI). Females of Calliopum have a characteristic structure of their terminalia with the exception of C. geniculatum (Fabricius,1805), which is almost identical to L. siciliana Merz, 2001 and L. bilobata Merz, 2001. Female terminalia of L. cylindricornis are rigid and fairly complex, in L. minor Martinek, 1974 they are simple and rigid and in L. albomaculata Strobl, 1909 they are membranous and retractable. In phylogenetic analysis, L. cylindricornis (Fabricius, 1794) clusters with Calliopum with high support. Lauxania minor appears to be sister to Sapromyza columbi Frey, 1936, an endemic species to the Canary Islands, however, support is very weak. Lauxania albomaculata clusters with S. schnabli Papp, 1987 with low support. S. madeirensis Frey, 1949, endemic to Madeira, falls well within Minettia fasciata species group. Our results support the non-monophyly of Lauxania, with the subgenera Callixania Papp, 1978 and Czernushka Shatalkin, 2000 being divergent in terms of DNA sequences from Lauxania s. str. The affinities of Calliopum geniculatum remain equivocal, yet seem to be closer to Lauxania s. str. Suggested systematic changes: Czernushka albomaculata (Strobl, 1909) comb. n, Callixania minor (Martinek,1974) comb. n, Callixania martineki (Shatalkin, 1999) comb. n, Minettia madeirensis (Frey, 1949) comb. n.

lauxaniid 属Calliopum Strand, 1928、Lauxania Latreille, 1804 与Sapromyza Fallen属的相关物种，1820 年尚未完全了解。在这项工作中，我们提供了选定物种的终端的详细形态学研究以及对 4 个基因片段（16 S rRNA、28 S rRNA、EF1-alpha 和 COI）的 DNA 序列的贝叶斯系统发育分析。的雌性Calliopum具有它们榄仁的特征构造的除外C. geniculatum（法氏囊，1805），这几乎是相同的L.西西里梅尔茨，2001年和L. bilobata梅尔茨，2001的女性榄仁L. cylindricornis刚性且相当复杂，在L. minor Martinek, 1974 中，它们简单而刚性，在L. albomaculata Strobl, 1909 中，它们是膜状的且可伸缩的。在系统发育分析中，L. cylindricornis (Fabricius, 1794)以高支持度与Calliopum聚类。Lauxania minor似乎是1936 年Sapromyza columbi Frey 的姐妹，后者是加那利群岛的特有物种，但支持非常弱。Lauxania albomaculata集群与S. schnabli Papp，1987 年，支持率低。S. madeirensis Frey，1949 年，马德拉岛特有种，很好地属于Minettia fasciata物种组。我们的结果支持Lauxania的非单系性，亚属Callixania Papp, 1978 和Czernushka Shatalkin, 2000 在来自Lauxania s的 DNA 序列方面存在分歧。海峡 Calliopum geniculatum的亲和力仍然模棱两可，但似乎更接近Lauxania s。海峡 建议的系统更改：Czernushka albomaculata (Strobl, 1909) 梳子。n，Callixania minor ( Martinek , 1974) 梳子。n，Callixania martineki (Shatalkin, 1999) 梳子。n, Minettia madeirensis (Frey, 1949) 梳子。n.