title: A new species of the genus Aulacorthum (Hemiptera: Aphididae) from the Korean Peninsula and its discrimination from a closely-related species using morphological and molecular characters.
abstract: Aulacorthum sp. collected on Artemisia princeps and Artemisia stolonifera (Asteraceae) in the Korean Peninsula was compared with the eight Aulacorthum species using molecular and morphological characters. In the sequence analysis, the genetic divergences of two mitochondrial genes, COI and CytB, between Aulacorthum sp. and the congeneric species were higher than those among the congeneric species. In the morphometric analysis, principal components analysis using 13 morphological characters reveals that Aulacorthum sp. is distinguished from the congeneric species, especially Aulacorthum albimagnoliae, which is morphologically most similar to Aulacorthum sp.. Based on these results, we propose a new species, Aulacorthum (Aulacorthum) artemisiphaga Lee, Havelka, and Lee sp. nov., with a description of apterous and alate viviparous females and an identification key to species in the genus Aulacorthum in the Korean Peninsula based on apterous viviparous females.
authors.affiliation: Insect Biosystematics Laboratory, Research Institute for Agricultural and Life Sciences, Department of Agricultural Bio-technology, Seoul National University, Seoul 151-921, Korea.
authors.forename: Wonhoon
authors.initials: W
authors.lastname: Lee
authors.forename: Hyojoong
authors.initials: H
authors.lastname: Kim
authors.forename: Jan
authors.initials: J
authors.lastname: Havelka
authors.forename: Seunghwan
authors.initials: S
authors.lastname: Lee
mesh_terms: D000818:Animals; D001042:Aphids / Q000033:anatomy & histology* / Q000145:classification / Q000235:genetics*; D001483:Base Sequence; D003573:Cytochrome b Group / Q000235:genetics*; D003576:Electron Transport Complex IV / Q000235:genetics*; D005260:Female; D017344:Genes, Insect; D050259:Genes, Mitochondrial; D008969:Molecular Sequence Data; D010802:Phylogeny; D056910:Republic of Korea
chemical_list: D003573:Cytochrome b Group; D003576:Electron Transport Complex IV