Japanese firefly

Description

Luciola cruciata,known as "genji-botaru" in Japanese,is a species of firefly found in Japan.Its habitat is small ditches and streams,and its larvae are aquatic.The male is 10.5–16.5 mm (0.41–0.65 in) long and 3.0–5.0 mm (0.12–0.20 in) wide.The female is larger,15.0–18.6 mm (0.59–0.73 in) long and 5.0–6.0 mm (0.20–0.24 in) wide.The pronotum is reddish pink,with a central marking.The black elytra are elongate.In the male,the venter is brown and pale yellow,and in the female,it is brown,yellow and reddish pink.The male's luminous organ occupies its sixth ventrite.The antennae,about 6 mm (0.24 in) long,are between the eyes,which are well developed.The larva's body is soft,with gills.It has defensive organs that are eversible (can be turned inside out).