Biton longisetosus is a small insect belonging to the order Coleoptera. It is characterized by its elongated body and long setae, or bristles, covering its exoskeleton. This species is typically found in tropical rainforests, where it feeds on decaying plant matter. Biton longisetosus is known for its ability to camouflage itself among leaf litter, making it difficult to spot in its natural habitat.