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The aleocharine subtribe Homalotina Heer represents one of the most diverse lineages of Staphylinidae. Despite its wide distribution and diversity, the phylogenetic relationships of the subtribe remain poorly understood. Here, we present the first cladistic analysis of the Homalotina based on morphological data. The subtribe is hypothesized to be a monophyletic group consisting of seven genera ( Anomognathus Solier, Cephaloxynum Bernhauer, Holisomimus Cameron, Homalota Mannerheim, Neomalota Cameron, Stenomastax Cameron, and Thecturota Casey). The dataset for phylogenetic analysis comprised 83 characters representing 245 character states derived from adult morphology. These data were analysed using equal weighting and implied weighting schemes ( k = 1-6) and results support the monophyly of the subtribe based on two synapomorphic characters (complete postoccipital sutures on head, posterolateral margin of metacoxae with macrosetae) and three homoplastic characters (medial setae on prementum not extended to apex of ligula, medial setae on labium contiguous, posterolateral angle of elytron slightly sinuate). Generic relationships differ in each analysis within the Homalotina ( EW, IW with k = 1, 2-4, 5-6) although there are some identical topologies among the IW trees. Clades A, B, C, D, H, J and G were resolved as monophyletic in all weighting regimes. The monophyly of the genera is relatively well supported except for the genera Homalota and Stenomastax. Homalota species were recovered in four independent clades (clade C, D, I, K) and the Stenomastax species were recovered in two independent lineages. Candidates for the possible new genera are discussed. We herein transfer Homalota flavomaculata Bernhauer to the genus Stenomastax, resulting in the new combination [ Stenomastax flavomaculata (Bernhauer)]. Our preliminary character correlation tests using phylogenetic pairwise comparisons did not support the hypothesis of association between flattened body form, and subcortical habitat and anterior shift of antennal insertion in Homalotini. [ABSTRACT FROM AUTHOR]

A 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. [ABSTRACT FROM AUTHOR]

Three staphylinid species, Aleochara ( Aleochara) coreana Bernhauer, A. ( Coprochara) verna Say and Prosthecarthron sauteri Raffray, are recorded for the first time from South Korea. Redescriptions and line drawings of diagnostic characters of all three species are provided. Ecological notes are provided for P. sauteri. [ABSTRACT FROM AUTHOR]

The genus Coenonica Kraatz in the tribe Homalotini Heer is composed of 154 species from the World and 38 species in the Palaearctic region. In East Asia, 17 species have been recorded from China and four species from Japan. In Korea, two species, Coenonica absurda Pace and C. lewisa (Sharp), have been recorded by Paśnik (2001) from North Korea. Members of the genus Coenonica are characterized by the combination of following features: body depressed, pronotum with a U or V-shaped impression, meso- and metaventral processes rounded or truncate apically. During an ongoing study of the Korean Homalotini, we found four Coenonica species. Coenonica absurda Pace and C. lewisa (Sharp) are reported for the first time in South Korea, and C. sharpi (Fauvel) and C. zhejiangensis Pace from the Korean peninsula. We provide a key to the species of Korean Coenonica and illustrations of habitus photographs with line drawings of diagnostic characters. The specimens studied are deposited in the Chungnam National University Insect Collection (CNUIC, Daejeon), Korea. [ABSTRACT FROM AUTHOR]