Two new species of the genus Zorochros (Coleoptera: Elateridae: Negastriinae) from Korea

Han, Taeman, Park, In Gyun, Park, Haechul (2015): Two new species of the genus Zorochros (Coleoptera: Elateridae: Negastriinae) from Korea. Zootaxa 3904 (2): 261-269, DOI: 10.11646/zootaxa.3904.2.

A taxonomic review of the genus Palumbina Rondani, 1876 (Lepidoptera, Gelechiidae, Thiotrichinae) from China, with descriptions of twelve new species

Ga-Eun Lee1, Houhun Li, Taeman Han, Haechul Park (2018): A taxonomic review of the genus Palumbina Rondani, 1876 (Lepidoptera, Gelechiidae, Thiotrichinae) from China, with descriptions of twelve new species. Zootaxa 4414 (1): 1-73, DOI: https://doi.org/10.11646/zootaxa.4414.1.

A new species, Hemicrepidius (Miwacrepidius) rubriventris sp. nov. (Coleoptera, Elateridae, Denticollinae) from Republic of Korea

Han, Taeman, Lee, Youngbo, Kim, Namjung, Park, Sangwook, Suzuki, Wataru, Lee, Seunghwan, Park, Haechul (2013): A new species, Hemicrepidius (Miwacrepidius) rubriventris sp. nov. (Coleoptera, Elateridae, Denticollinae) from Republic of Korea. Zootaxa 3745 (3): 379-387, DOI: 10.11646/zootaxa.3745.3.

Reassessment of Species Diversity of the Subfamily Denticollinae (Coleoptera: Elateridae) through DNA Barcoding

<div><p>The subfamily Denticollinae is a taxonomically diverse group in the family Elateridae. Denticollinae includes many morphologically similar species and crop pests, as well as many undescribed species at each local fauna. To construct a rapid and reliable identification system for this subfamily, the effectiveness of molecular species identification was assessed based on 421 <i>cytochrome c oxidase subunit I</i> (<i>COI</i>) sequences of 84 morphologically identified species. Among the 84 morphospecies, molecular species identification of 60 species (71.4%) was consistent with their morphological identifications. Six cryptic and/or pseudocryptic species with large genetic divergence (>5%) were confirmed by their sympatric or allopatric distributions. However, 18 species, including a subspecies, had ambiguous genetic distances and shared overlapping intra- and interspecific genetic distances (range: 2.12%–3.67%) suggesting incomplete lineage sorting, introgression of mitochondrial genome, or affection by endosymbionts, such as <i>Wolbachia</i> infection, between species and simple genetic variation within species. In this study, we propose a conservative threshold of 3.6% for convenient molecular operational taxonomic unit (MOTU) identification in the subfamily Denticollinae based on the results of pairwise genetic distances analyses using neighbor-joining, mothur, Automatic Barcode Gap Discovery analysis, and tree-based species delimitation by Poisson Tree Processes analysis. Using the 3.6% threshold, we identified 87 MOTUs and found 8 MOTUs in the interval between 2.5% to 3.5%. Evaluation of MOTUs identified in this range requires integrative species delimitation, including review of morphological and ecological differences as well as sensitive genetic markers. From this study, we confirmed that <i>COI</i> sequence is useful for reassessing species diversity for polymorphic and polytypic species occurring in sympatric and allopatric distributions, and for a single species having an extensively large habitat.</p></div

FIGURE 2 in Taxonomic Review of the Subtribe Athouina Candèze, 1859 (Coleoptera, Elateridae, Dendrometrinae, Dendrometrini) in Korea

FIGURE 2. SEM images of Cidnopus nigronitidus sp. nov. A: Pronotum. B: Punctures of median portion of pronotum. C: Punctures of anterior portion of pronotum. D: Head. E: Punctures of median portion of head. F: Frontal view of the head. G: 2 nd to 4 th antennomeres, male. H: Hind angle of pronotum. I: Posterior margin of pronotum. J: Scutellum. K: Lateral view of scutellum. L: Prosternum. M: Lateral view of prosternal process. N: Anterior portion of hypomeron. O: Right elytron. P: Hind coxal plate. Q: Maxillary palpi. R: Fore claw

Molecular phylogeny of the genus Dicronocephalus (Coleoptera, Scarabaeidae, Cetoniinae) based on mtCOI and 16S rRNA genes

The seven species belonging to the genus Dicronocephalus are a very interesting group with a unique appearance and distinct sexual dimorphism. Only one species among them, D. adamsi, has been known in the Korean fauna. This species is recognized as having a wide distribution from Tibet to Korean Peninsula and is currently represented by two subspecies that have separated geographical ranges. The phylogenetic relationships of D. adamsi were still unclear. The phylogeny of Dicronocephalus is reconstructed with a phylogenetic study of five species including four subspecies based on a molecular approach using mitochondrial COI and 16S rRNA genes. Our results are compared with the results obtained by previous authors based on morphological characters. They show that the tested taxa are divided into two major clades. Clade A consists of two species (D. adamsi + D. yui) and Clade B includes the others (D. dabryi + D. uenoi + D. wallichii). This result generally supports Kurosawa’s proposal except that D. dabryi and D. uenoi are newly recognized as members of a monophyletic group. We propose that D. adamsi drumonti is a junior subjective synonym of D. adamsi adamsi. These results show that three members of the D. wallichii group should be treated as species rather than subspecies. However, further research including analyses of different genetic markers is needed to reconfirm our results

Two subspecies of <i>Denticollis nigricollis</i>.

<p>A and B: <i>D</i>. <i>n</i>. <i>nigricollis</i>; C and D: <i>D</i>. <i>n</i>. subsp. 1 (a candidate new subspecies identified by morphological examination). A and C: Dorsal view of adult; B and D: Aedeagus.</p

Neighbor-joining cladogram inferred from <i>COI</i> partial gene sequences of <i>Selatosomus</i> spp.

<p>Neighbor-joining cladogram inferred from <i>COI</i> partial gene sequences of <i>Selatosomus</i> spp.</p

MOTU recognition per morphospecies using the ABGD method.

<p>MOTU recognition per morphospecies using the ABGD method.</p

Genetic divergences in accordance with different taxonomic levels within Denticollinae.

<p>Genetic divergences in accordance with different taxonomic levels within Denticollinae.</p