Magalhães Oséias Martins, Floriano Carla Fernanda Burguez, Moreira Felipe Ferraz Figueiredo
Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Entomologia, Rio de Janeiro, Brazil Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Entomologia Rio de Janeiro Brazil.
Biodivers Data J. 2023 Jun 12;11:e105614. doi: 10.3897/BDJ.11.e105614. eCollection 2023.
Mayr, 1865 (Hemiptera, Heteroptera, Veliidae), known as riffle bugs, includes more than 400 species and is commonly found in tropical lotic environments, including coastal marine habitats, such as mangroves and estuaries. Due to the elevated number of species, the fauna from the Americas has been divided into several groups, which facilitates taxonomic studies. Amongst them, the group currently includes two species from the Greater Antilles and five from south-eastern and southern Brazil. Despite the many taxonomic studies developed during the past few decades, new species of are still being discovered in several areas of the continent, including the Atlantic Forest of eastern Brazil.
sp. n. is described, illustrated and compared with similar congeners. The new species belongs to the group and can be diagnosed by the uniformly black mesonotum, the presence of a tuft of setae medially on male abdominal sternum VII, the armature of the male hind femur and the distinctive shape of the paramere. In addition, we present new records of Bacon, 1948 from the States of Paraná and Santa Catarina and a key to the species of the group recorded from Brazil.
梅尔摇蚊属（Mayr，1865年）（半翅目，异翅亚目，毛蚊科），俗称细鳞虫，包含400多个物种，常见于热带流水环境，包括沿海海洋栖息地，如红树林和河口。由于物种数量众多，美洲的该动物群已被分为几个类群，这便于进行分类学研究。其中，该类群目前包括来自大安的列斯群岛的两个物种以及来自巴西东南部和南部的五个物种。尽管在过去几十年中开展了许多分类学研究，但在该大陆的几个地区，包括巴西东部的大西洋森林，仍不断发现梅尔摇蚊属的新物种。
描述、图示了一个新物种，并将其与相似的同属物种进行了比较。该新物种属于该类群，可通过以下特征进行鉴别：中胸背板均匀黑色、雄性腹部腹板VII中部有一簇刚毛、雄性后足腿节的形态以及阳茎端突的独特形状。此外，我们还给出了1948年培根描述的物种在巴拉那州和圣卡塔琳娜州的新记录，以及巴西记录的该类群物种检索表。
