In-Seong Yoo

Research Center for Endangered Species - National Institute of Ecology · Division of Restoration Research

Adota kamchatkaensis Yoo & Ahn, sp. nov. is described on the coast of Kamchatka, Russia. It is similar to A. ushio (Sawada) and A. madida (Bernhauer) but can be distinguished by the emarginate posterior margin of male abdominal tergite VIII and the different form and structure of the aedeagus and spermatheca. A comparison table of morphological cha...

Cafius chilensis sp. nov. is described from the Chilean coast. Adults of the new species were collected under seaweed and are similar to those of C. algophilus Broun, 1894 and C. maritimus (Broun, 1880) from the New Zealand coast. Morphological comparison for these three species is presented. A description, SEM and habitus photographs, and illustra...

A systematic review of the marine littoral Cafius bistriatus (Erichson) along the eastern Pacific and the western Atlantic coasts including the Caribbean Sea is presented based on morphological and molecular ( COI and 28S ) characters. Specimens of the Cafius bistriatus species complex [ C. bistriatus , C. rufifrons Bierig, and C. sulcicollis (LeCo...

A taxonomic reappraisal of the marine littoral Cafius algarum (Sharp, 1874) and its related species along the western Pacific and the western Atlantic coasts including the Caribbean Sea is presented based on morphological and molecular characters (COI and 28S). Specimens of the three species (C. algarum, Cafius subtilis Cameron, 1922, and Cafius ag...

A systematic review of the marine littoral Cafius corallicola (Fairmaire), widely distributed along the coasts from the Indian Ocean to the western Atlantic Ocean through the southern Pacific Ocean, is presented based on morphological and molecular characters (COI and 28S). Specimens of the two species [C. corallicola and C. caribeanus Bierig] are...

The marine littoral rove beetle genus Cafius Stephens and related genera have been known to be an extraordinarily heterogeneous group and are taxonomically dispersed among several lineages of coastal Staphylininae. A phylogenetic analysis of this Cafius complex is performed based on morphological and molecular characters in order to classify them i...

A taxonomic study of the intertidal Thinobius Kiesenwetter in Korea is presented. Three species are recognized, two of which are identified as new species (Thinobius jejuensis Lee & Ahn, sp. n. and Thinobius koreanus Lee & Yoo, sp. n.) and Thinobius kuroshio (Sawada) is recorded for the first time in Korea. A key, descriptions, habitus photographs,...

Diaulota koreana Yoo and Ahn new species is described in the intertidal zones of the southern part of the Korean peninsula and illustrations of diagnostic characters are presented. A cladistic analysis of the Liparocephalini based on 50 adult characters suggests that the new species belongs to the genus Diaulota Casey within the Liparocephalini. Si...

A taxonomic reappraisal of four marine littoral Phucobius Sharp species along the western Pacific Ocean including the South China Sea is presented based on morphological and molecular characters (COI and 28S). Specimens of the four species, each having its own distinct geographic distribution, are extremely similar to each other including the struc...

In a recent publication (Yoo & Ahn, 2020), a holotype depository was not clearly indicated for the new species, Amblopusa vancouverensis Yoo & Ahn, 2020. In this paper we provide the missing type depository with a diagnosis of Amblopusa vancouverensis sp. nov. in order to validate the name under the conditions required by the ICZN (1999: Article 16...

Amblopusa vancouverensis Yoo & Ahn, sp. nov. is described from Vancouver Island, Canada. The new species is compared with closely related species, A. brevipes Casey. Amblopusa brevipes is redescribed and the taxonomic characters of mouthparts and genitalia of both sexes are discussed and illustrated. New distributional record of A. brevipes for Aga...

Two coastal aleocharine species, Myrmecopora (Lamproxenusa) algarum (Sharp) and Oreuryalea watanabei Assing and Maruyama, are recorded for the first time in Korea. Diagnoses and habitus photographs of both species are provided. Keywords: Aleocharinae, Korea, Myrmecopora, New records, Oreuryalea

Diaulota hokkaidona Ahn and Ôhara, sp. n. and Diaulota oharai Ahn and Yoo, sp. n. are described from coastal Hokkaido, Japan. Diaulota hokkaidona Ahn and Ôhara, sp. n. is very similar to D. aokii Sawada and cannot be distinguished by the external morphological characters but they are separated by the structures of median lobe of aedeagus and molecu...

A list of the 646 described species of Staphylinidae in Korea is presented. The list is in taxonomic sequence by subfamily, tribe, and genus and includes 215 genera in 55 tribes and 18 subfamilies. We provide the page reference of the original description of every species and genus listed, of many synonyms and of all the Korean records. The list pr...

A taxonomic study of the coastal genus Halorhadinus Sawada, 1971 in Korea is presented. Five species, including a new species, Halorhadinus koreanus sp. nov., are recognized. Three species, H. aequalis Sawada, 1971, H. masakazui Ono & Maruyama, 2014, and H. satoi Ono & Maruyama, 2014, are new to the Korean fauna. A key and a comparison of morpholog...

Giulianium koreanum, new species (type locality: Daedongbae-ri, Homigot-myeon, Nam-gu, Pohang-si, Gyeongbuk Province, Korea) is described in Korea. The new species is compared with the related species, G. alaskanum Ahn and Ashe and G. tomokoae Ono and Maruyama. Illustrations for diagnostic characters of the new species and key and distribution map...

A redescription with illustrations of the species Lyrosoma pallidum and a key to the Korean species of the family Agyrtidae are provided. New distributional data, including a range extension, of the two Lyrosoma Mannerheim species are presented. Lyrosoma pallidum (Eschscholtz) is recorded for the first time in Korea.

Hesperus splendoris (Last) is transferred from the genus Cafius to Hesperus Fauvel and the name is replaced as H. neosplendoris. Illustrations of the holotype and label data are presented.La especie Hesperus splendoris (Last) se transitera del género Cafius a Hesperus Fauvel y su nombre se remplaza como H. neosplendoris. Se presentan ilustraciones...

A taxonomic study of the genus Adota Casey in Korea is presented. Four species are recognized, 2 of which are newly described (A. koreana sp. nov. and A. minuta sp. nov.). Adota ushio (Sawada) is newly added to the Korean fauna. A key to the known species, descriptions, habitus photographs, and line drawings of diagnostic characters are provided.Se...

The coastal staphylinids are introduced for the first time from Dokdo Island. Three coastal species, Aleochara (Emplenota) fucicola Sharp, Atheta (Badura) tokiokai (Sawada) and Cafius histrio (Sharp), were identified and are reported newly from Dokdo island. Their habitus and information about species distribution are provided.

Two coastal species in the tribe Athetini, Osakatheta yasukoae Maruyama, Klimaszewski and Gusarov, and Psammostiba hilleri (Weise), are newly discovered from the Korean fauna. Diagnoses, habitus photographs and line drawings of median lobe are provided.

AbstractA taxonomic study of Korean Myrmecopora Saulcy is presented. Myrmecopora (Lamproxenusa) rufescens (Sharp) previously reported by Ahn was an incorrect identification of M. (L.) reticulata Assing. Diagnoses, habitus photographs and line drawings of diagnostic characters are provided.

While collecting the Korean seashore Staphylinidae, we found unusual rove beetles under decaying seaweeds along beaches of the southern coasts. As a result of the detailed study of them, we identified them as Heterota onorum Maruyama, new to Korean fauna. Heterota Mulsant and Rey contains 11 species worldwide and one species (H. sunjaei) in Korea,...

Here, we present a taxonomic review of the oedemerid subfamily Nacerdinae in Korea. Eleven species in five genera under two tribes are recognized. The subgenus Nacerdes (Patiala), represented by Nacerdes (Patiala) ocularis (Lewis), is identified for the first time in Korea. Keys, diagnoses, habitus photos of adults, and drawings of male genitalia a...