Genetic identity of Japanese Sympetrum frequens and Korean S. depressiusculum inferred from mitochondrial 16S rRNA sequences (Odonata: Libellulidae)

The Japanese endemic Sympetrum frequens is considered as the insular vicariant of S. depressiusculum, widely distributed in the Eurasian Continent. In Korea, morphologically intermediate specimens have been collected, mixed with typical S. depressiusculum. The taxonomical status of these two species is thus questionable. To clarify their status, sequencing of mitochondrial 16S ribosomal RNA (rRNA) was…