The Korean species of the genus Adota Casey (Coleoptera: Staphylinidae: Aleocharinae) with description of two new species

• Published in: Entomological research 2011-11, Vol.41 (6), p.282-282
• Main Authors: Lee, Seung-Gyu, Yoo, In-Seong, Ahn, Kee-Jeong
• Format: Article
• Language: English
• Subjects: Adota; Aleocharinae; Atheta; Coleoptera; Korea; New species; Seaweeds; Setae; Spermatheca; Staphylinidae
• ISSN: 1738-2297; 1748-5967
• DOI: 10.1111/j.1748-5967.2011.00388.x

The athetine genus Adota Casey, 1910 contains seven species worldwide and six of which are restricted to seashores (Smetana 2004, Frank & Ahn 2011). Fenyes (1918, 1920) raised Adota to generic rank from a subgenus of Atheta based on the absence of infraorbital carina. Gusarov (2003) revised the Nearcic Adota species, and described one new species. Three species and four species are described in Nearcic and Palaearctic region, respectively. In the Palaearctic region, all species have been reported from Japan. Adota magnipennis is the only species recorded in the Korean Peninsula by Park et al. (2007). Most Adota species can be found under seaweeds and stones on seashore. Members of the Adota can be distinguished from other athetine genera by combination of the following characters: body parallel‐sided, flattened dorsoventrally; surface densely pubescent and finely punctured, with isodiametric microsculpture; antennomere 2 little longer than 3; infraorbital carina absent; pronotal pubescence directed anteriorly in midline; tarsi with long setae ventrally, metatarsomere 1 about as long as 2; empodial seta about as long as claw; abdominal tergites III–VI transversely impressed in basal region; spermatheca one coiled distally. In this study, we recognized four Adota species in Korea, including two new species, A. koreana Lee and Ahn new species and A. minuta Lee and Ahn new species. Adota ushio is recorded for the first time in Korea. A key, habitus photographs and line drawings of diagnostic characters are provided.