“…For the study of morphological characters, we selected many specimens with different geographic distributions for their intraspecific variation, and dissected and cleared the whole body for examining microstructures (
Yoo et al 2021 ). Scanning electron microscope (
SEM ) and habitus photographs followed
Yoo et al (2021) . Depository of specimens examined is as follows: The Natural History Museum (
BMNH ), London, United Kingdom;
Canadian National Collection of Insects (
CNC ), Ottawa, Canada; Chungnam National University Insect Collection (
CNUIC ), Daejeon, Korea;
Field Museum of Natural History (
FMNH ), Chicago, USA;
Museum für Naturkunde (
MFNB ), Berlin, Germany; and
Naturhistorisches Museum (
NMW ), Vienna, Austria.…”