Benetti Cesar J, Valladares Luis F, Delgado Juan A, Hamada Neusa
Coordenação de Biodiversidade, Programa de Pós-Graduação em Entomologia (PPGEnt), Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo 2936, CEP 69067-375, Manaus, AM, BRAZIL..
Zootaxa. 2020 Mar 12;4750(3):zootaxa.4750.3.5. doi: 10.11646/zootaxa.4750.3.5.
Hydraena (Hydraenopsis) josefinae sp. nov. and H. (H.) pernambucana sp. nov. are described respectively from Amapá and Pernambuco States, Brazil. Hydraena (H.) josefinae sp. nov. is a member of the scintillabella subgroup of the leechi group, while H. (H.) pernambucana sp. nov. belongs to the orcula complex in the marginicollis subgroup of the marginicollis group. Descriptions and diagnostic characters for both new species are offered; habitus photographs and line drawings of male genitalia of the two new species, as well as drawings of female genitalia of H. josefinae sp. n., are provided. Male genitalia of H. alterra Perkins, 1980 is illustrated and compared with that of the closely related H. josefinae sp. nov. Habitat and distributional data of the two new species are also included.
新物种约瑟芬氏水缨甲（Hydraena (Hydraenopsis) josefinae）和伯南布哥水缨甲（Hydraena (Hydraenopsis) pernambucana）分别采自巴西的阿马帕州和伯南布哥州，并予以描述。约瑟芬氏水缨甲属于李氏类群的闪烁类亚组，而伯南布哥水缨甲属于缘颈类群缘颈亚组的奥库拉类群。文中给出了这两个新物种的描述及鉴别特征；提供了两个新物种的整体照以及雄性生殖器线条图，还有约瑟芬氏水缨甲雌性生殖器的绘图。文中展示了1980年珀金斯描述的异形水缨甲的雄性生殖器，并与近缘的新物种约瑟芬氏水缨甲进行了比较。文中还包含了这两个新物种的栖息地及分布数据。
