Macrosiphini is the most largest group in aphids, comprising near half of the described aphid species. The existence of Macrosiphini could be related to host alternation and various life cycle. Since the phylogenetic relationship of the tribe Macrosiphini has been still controversial, we analyzed Bayesian phylogeny (BP) and Maximum-likelihood (ML) based on molecular data (cytochrome oxidase I, tRNA-leucine+cytochrome oxidase II, 16S ribosomal RNA and elongation factor-1 alpha gene), and compared with the Shaposhnikov (1998) 's subtribal division: Macrosiphina, Myzian, Anuraphidina and Liosomatinae. Analyses for host range association with the morphological characters (e.g. Siphunculus and antennal tubercle on head) correspond to the tendency of host range radiation in the tribe Macrosiphini.

• Hwalran Choi(Department of Agricultural Bio-Technology, Seoul National University)
• Seunggwan Shin(Department of Agricultural Bio-Technology, Seoul National University)
• Seunghwan Lee(Department of Agricultural Bio-Technology, Seoul National University)