Molecular identification and larval description of Callipogon relictus Semenov (Coleoptera: Cerambycidae), a natural monument of South Korea

► Callipogon relictus is a South Korean Natural monument. ► Larval stage of C. relictus is described. ► The Barcode of C. relictus is used for identification. ► Morphological characters of C. relictus presented. ► Biometric data of C. relictus is provided.