insects Article Tracing the Invasion and Expansion Characteristics of the Flatid Planthopper, Metcalfa pruinosa (Hemiptera: Flatidae), in Korea Using Mitochondrial DNA Sequences Keon Hee Lee 1, Jun Seong Jeong 1,2, Jeong Sun Park 1, Min Jee Kim 1,3, Na Ra Jeong 1, Su Yeon Jeong 1, Gwan Seok Lee 4, Wonhoon Lee 5 and Iksoo Kim 1,* 1 Department of Applied Biology, Chonnam National University, Gwangju 61186, Korea;
[email protected] (K.H.L.);
[email protected] (J.S.J.);
[email protected] (J.S.P.);
[email protected] (M.J.K.);
[email protected] (N.R.J.);
[email protected] (S.Y.J.) 2 Team of Protected Area Research, National Institute of Ecology, Seocheon 33657, Korea 3 Experiment and Analysis Division, Honam Regional Office, Animal and Plant Quarantine Agency, Gunsan 54096, Korea 4 Crop Protection Division, Department of Agro-Food Safety and Crop Protection, National Institute of Agricultural Sciences, RDA, Wanj 55365, Korea;
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[email protected] Simple Summary: After the invasion of Korea in 2005, the first lines of studies on Metcalfa pruinosa inferred the origin of the species using a fragment of mitochondrial COI sequences. However, the low variability of the sequences limited further scrutinized inference on the invasion dynamics. In this study, we sequenced a fragment of the COI gene from 536 individuals of the species and combined the sequence data with the available GenBank data, totaling 830 individuals.