Davis Steven R, Brav-Cubitt Talia, Buckley Thomas R, Leschen Richard A B
Division of Invertebrate Zoology, American Museum of Natural History, 200 Central Park West at 79th Street, New York, NY 10024-5192, USA..
Zootaxa. 2019 Jan 7;4543(3):341-374. doi: 10.11646/zootaxa.4543.3.2.
Etheophanus Broun is considered a molytine based on the form of the pharyngeal plate, presence of a small spiculum relictum in the male, and presence of a pair of small internal apodemes on the antero-lateral corners of the 5th abdominal ventrite of the female. Examination of primary type specimens and newer material confirm one new species Etheophanus kuscheli sp. n. and two synonomies (Etheophanus nitidellus Broun, 1923 [= Etheophanus obscurus Broun, 1923] and Etheophanus striatus Broun, 1910 [=Etheophanus punctiventris Broun, 1914]). Generic and species diagnoses, a key to the species, and lectotype designations for three species are included. Phylogenetic reconstructions based on a combined analysis of the nuclear 28S rRNA and mitochondrial cytochrome c oxidase subunit I genes confirmed the status of E. kuscheli and a species complex, the E. nitidellus/E. optandus clade distributed in the southern portion of the South Island. The relationship E. pinguis [northern North Island] (E. striatus [southern North Island, northern South Island] (E. kuscheli [northwestern South Island] (E. nitidellus, E. optandus [southwestern North Island]) corresponds to geographic patterns found in other beetle lineages. Etheophanus striatus is composed of three lineages, one widespread in the north and south islands and two allopatric populations in the northwest South Island. The E. nitidellus/E. optandus complex includes four distinct lineages, one restricted to Fiordland, the other three sympatric in the region affected by the Haast Corridor.
根据咽板的形态、雄性个体中存在小的残遗交合刺以及雌性个体第5腹板前侧角存在一对小的内骨突，埃氏扁甲属（Etheophanus）被认为是扁甲科（molytine）的成员。对模式标本和新材料的研究确认了一个新物种——库氏埃氏扁甲（Etheophanus kuscheli sp. n.）以及两个同物异名（亮埃氏扁甲（Etheophanus nitidellus Broun，1923）[= 暗埃氏扁甲（Etheophanus obscurus Broun，1923）]和条纹埃氏扁甲（Etheophanus striatus Broun，1910）[= 点腹埃氏扁甲（Etheophanus punctiventris Broun，1914）]）。文中包含了属和种的诊断、物种检索表以及三个物种的选模指定。基于核28S rRNA和线粒体细胞色素c氧化酶亚基I基因的联合分析进行的系统发育重建，确认了库氏埃氏扁甲的分类地位以及一个物种复合体，即分布于南岛南部的亮埃氏扁甲/奥氏埃氏扁甲（E. nitidellus/E. optandus）分支。平埃氏扁甲[北岛北部]（条纹埃氏扁甲[北岛南部、南岛北部]（库氏埃氏扁甲[南岛西北部]（亮埃氏扁甲、奥氏埃氏扁甲[南岛西南部]））的关系与其他甲虫谱系中的地理分布模式相符。条纹埃氏扁甲由三个谱系组成，一个在北岛和南岛广泛分布，另外两个是南岛西北部的异域种群。亮埃氏扁甲/奥氏埃氏扁甲复合体包括四个不同的谱系，一个局限于峡湾地区，另外三个在受哈斯特走廊影响的地区同域分布。
