The genus Coenosia Meigen, 1826 (Muscidae: Coenosiinae) is known from all biogeographic regions and is found at high altitudes and in different latitudinal zones. Adults and larvae are predaceous on other insects and some species exhibit sexual dimorphism which can hinder the identification and the association of conspecific specimens. Coenosia inaequalis Malloch, 1934 and Coenosia uniformis Malloch, 1934 are endemic to the Patagonian forest and were each described from a single female specimen. We integrated ecological samples with molecular identification to find the male counterpart of these female-based species. This integrated taxonomy was achieved by analyzing the frequency and co-occurrence of C. inaequalis with an unknown male morphospecies, and its subsequent evaluation with DNA barcoding. This has enabled a redescription of C. inaequalis to be made, with detailed images of the ultrastructural morphology of the terminalia of both sexes. We propose a new synonymy: C. uniformis as a new junior synonym of C. inaequalis.

科诺西亚梅根属（Coenosia Meigen），1826年（马尾科（Cosusidae：Coenosiinae））在所有生物地理区域中都广为人知，并且发现于高海拔和不同纬度地区。成虫和幼虫早于其他昆虫，并且某些物种表现出有性二态性，这会阻碍同种标本的鉴定和关联。1934年的Coenosia inaequalis Malloch和1934年的Coenosia Uniformis Malloch是巴塔哥尼亚森林的特有种，它们都是从单个雌性标本中描述的。我们将生态样本与分子鉴定相结合，以找到这些雌性物种的雄性对应物种。通过分析不等角梭菌的发生频率和同时出现，实现了这种综合分类法雄性形态未知的雄性，随后用DNA条形码进行评估。这使的重述不等弯孢霉被制成，具有两性的榄仁的超微结构形态的详细图像。我们提出一个新的同义词：C. Uniformis，作为C. inaequalis的一个新的初级同义词。