The classification and identification of species within the genus Pseudechiniscus Thulin, 1911 has been considered almost a Sisyphean work due to an extremely high homogeneity of its members. Only recently have several contributions made progress in the taxonomy feasible through their detailed analyses of morphology and, crucially, by the re-description of the ancient, nominal species P. suillus (Ehrenberg, 1853). Herein, we focus on the Japanese representatives of this genus: P. asper, a rare species originally described from Hokkaido, and a new species P. shintai. Both taxa belong to the widespread suillus-facettalis complex. Detailed descriptions entailing DNA barcoding of four markers and illustrations of the ventral pillar patterns are indispensable for an accurate delineation of species within this genus.

中文翻译：

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日本的 Pseudechiniscus：重新描述 Pseudechiniscus asper Abe et al., 1998 和 Pseudechiniscus shintai sp. 的描述。十一月

1911 年 Pseudechiniscus Thulin 属内物种的分类和鉴定几乎被认为是西西弗式的工作，因为其成员具有极高的同质性。直到最近，才通过对形态学的详细分析，以及重要的是通过重新描述古老的名义物种 P. suillus (Ehrenberg, 1853)，在分类学方面取得了一些进展。在此，我们重点介绍该属的日本代表：P. asper，一种最初描述于北海道的稀有物种，以及一个新种 P. shintai。这两个分类群都属于广泛存在的猪小面复合体。需要对四个标记进行 DNA 条形码的详细描述和腹侧柱状图的插图对于准确描述该属内的物种是必不可少的。