Dikow Torsten, Leon Stephanie
National Museum of Natural History, Smithsonian Institution, Washington, DC, United States of America.
Department of Entomology, University of California at Riverside, Riverside, United States of America.
Biodivers Data J. 2014 Mar 10(2):e1071. doi: 10.3897/BDJ.2.e1071. eCollection 2014.
The Mydidae genus Namadytes Hesse, 1969 is reviewed. It is known from five species, primarily occurring in Namibia. The study of newly available material from both Namibia and South Africa deposited in several natural history collections results in the recognition of three species and new synonymy of two, i.e., Namadytespallidus Hesse, 1972 is a new junior synonym of Namadytesmaculiventris (Hesse, 1969) and Namadytesprozeskyi Hesse, 1969: 282 is a new junior synonym of Namadytesvansoni Hesse, 1969: 280. All three species are re-described and comments on sexual dimorphism and intraspecific variation are made, a dichotomous key for their identification is presented, and illustrations and photographs are provided to support the descriptions and facilitate future identification. Distribution, occurrence in biodiversity hotspots sensu Conservation International, and seasonal incidence with associated weather and climatic data are discussed for all species. A morphological structure ventral to the halter and posterior to the metathoracic spiracle, the infra-halter sclerite, is here newly termed.
对纳马迪特斯蝇属（Namadytes Hesse，1969）进行了综述。该属已知有5个物种，主要分布在纳米比亚。对存于多个自然历史收藏机构的来自纳米比亚和南非的新可得材料进行研究后，确认了3个物种，并发现了2个新的同物异名，即纳马迪特斯苍白色种（Namadytes pallidus Hesse，1972）是纳马迪特斯腹斑种（Namadytes maculiventris (Hesse, 1969)）的新次异名，以及纳马迪特斯普罗泽斯基种（Namadytes prozeskyi Hesse，1969: 282）是纳马迪特斯范索尼种（Namadytes vansoni Hesse，1969: 280）的新次异名。对所有3个物种进行了重新描述，并对两性异形和种内变异进行了评论，给出了用于鉴定它们的二歧检索表，还提供了插图和照片以支持描述并便于未来的鉴定。讨论了所有物种的分布、在国际保护组织定义的生物多样性热点地区的出现情况以及与相关天气和气候数据有关的季节性发生率。首次为位于平衡棒腹侧和后胸气门后侧的一种形态结构——平衡棒下骨片给出了新术语。
