Kee-Jeong Ahn

Usechus chujoi New to Korea (Coleoptera: Zopheridae: Zopherinae)

The genus and species-Usechus chujoi Kulzer-is identified for the first time in Korea. A habitus photo, description, and illustrations of the diagnostic characters of the species are provided.

Two Marine Littoral Species of the Genus Medon (Coleoptera: Staphylinidae: Paederinae) New to Korea

The taxonomy of marine littoral species of the genus Medon Stephens in Korea is presented. The genus and two species-Medon prolixus (Sharp) and M. rubeculus Sharp-are identified for the first time in the Korean Peninsula. Redescriptions of M. prolixus and M. rubeculus with an illustration of its habitus and line drawings are provided.

Description of Heterota sunjaei sp. nov. from Korean seashores and an annotated catalog of the littoral genus Heterota (Coleoptera: Staphylinidae: Aleocharinae)

A new species, Heterota sunjaei Park and Ahn sp. nov. (type locality: Geumgab Beach, Jindo, Jeonnam Province, Korea), is described from Korea. The new species is compared with the related species H. plumbea (Waterhouse) and H. arenaria Cameron and the differences are summarized. An illustration of the habitus and line drawings of diagnostic characters are presented. An annotated world catalog of the genus Heterota Mulsant and Rey is provided.

Description of Dictyon termitophilum New Species and a Key to the Species of the Genus Dictyon Fauvel (Coleoptera: Staphylinidae: Aleocharinae)

Abstract A new species - Dictyon termitophilum from Korea - is described and illustrated. A key to the known species of Dictyon is provided.

First record of the beetle family Biphyllidae (Coleoptera) in Korea

The Biphyllidae including four species, Biphyllus lewisi (Reitter), B. marmoratus (Reitter), B. rufopictus (Wollaston) and B. throscoides (Wollaston), are discovered for the first time in Korea. A key, habitus photographs and illustrations of diagnostic characters of the species are presented.

Synonymy of Aleochara (Aleochara) Claviger and A. niponensis (Coleoptera: Staphylinidae: Aleocharinae), and First Record of A. claviger in Korea

While studying Korean Aleochara Gravenhorst, we found a species new to the Korean fauna. After detailed comparisons with many types of the East Asian Aleochara , the species was identified as A. claviger Sharp. In addition, we noticed that the holotype of A. niponensis Sharp was very similar to A. claviger . Diagnostic characteristics (shape of antennomeres, male tergite VIII, male sternite VIII, median lobe, and paramere) of A . niponensis were not sufficient to maintain the separation of A . niponensis and A . claviger . Therefore, after studying the holotype of A. niponensis and 431 specimens of A. claviger , including 2 syntypes, we synonymize A. niponensis under A . claviger . We also designate the lectotype of A. claviger and report the species for the first time in Korea. All Korean specimens studied are deposited in the Chungnam National University Insect Collection (CNUIC) and Hannam University Natural History Museum (HUNHM), Daejeon, Korea.

Three littoral Athetini (Coleoptera: Staphylinidae: Aleocharinae) species new to Korea

Three littoral Athetini species –Adota magnipennis (Bernhauer), Atheta ririkoae Sawada and Atheta tokiokai (Sawada) – are reported for the first time in Korea. Diagnoses, illustrations of the habitus and line drawings of diagnostic characters are provided.

Sphaeroliodes rufescens Portevin new to Korea (Coleoptera: Leiodidae: Leiodinae)

The genus and species of Sphaeroliodes rufescens Portevin are recorded for the first time in Korea. A habitus photo as well as description and illustrations of diagnostic characters are provided.

Descriptions of Two New Species of the Genus Colon Herbst (Coleoptera: Leiodidae: Coloninae) from Korea and Japan

Abstract Two new species, Colon (Myloechus) koreanus new species (type locality—Mt. Odaesan, Pyeongchang-gun, Gangwon Prov., Korea) and C. (M.) shini new species (type locality—Mt. Odaesan, Pyeongchang-gun, Gangwon Prov., Korea), of the genus Colon Herbst are described from Korea and Japan. Types and paratypes of the new species are designated. The subfamily Coloninae and the genus Colon are reported for the first time in Korea. Colon (Myloechus) shini is the eighth species recorded from Japan. A key to the species of Colon in Korea and Japan, and illustrations of diagnostic features of the two new species are presented.

A taxonomic review of Korean Liogluta Thomson (Coleoptera, Staphylinidae, Aleocharinae) with descriptions of three new species

A taxonomic review of the Liogluta Thomson in Korea is presented. The genus is represented in Korea by eight species including three new species, L. changwhani Lee & Ahn, sp. nov., L. jinilli Lee & Ahn, sp. nov. and L. rufescens Lee & Ahn, sp. nov. Two species [L. distans (Sharp) and L. ursi (Sawada)] are new to the Korean peninsula and L. pyonganica is recorded for the first time in South Korea. A key, descriptions, habitus photographs and illustrations of the diagnostic characters are provided.