Dung beetle forewing-derived nitrogen and oxygen self-doped porous carbon for high performance solid-state supercapacitors

•Few reports on the use of insect-derived carbon for supercapacitors have been published.•A dung beetle forewing-derived carbon material was first prepared.•The biomass-derived carbon shows highly porous structure and large specific surface area.•The solid-state supercapacitor shows high specific capacitance.