Male body length 12-15 mm; antennae filiform, short; distal half of pronotum transparent, form two large windows; light organ transverse, located at the 6th and 7th ventrite. Female body length 20-26 mm, completely wingless or bearing a pair of small elytral rudiments, antennae filiform, distinguised from the serrate antennae of Diaphanes lampyroides; light organs transverse, located at ventrite 6 and 7. Larva dark brown, irregularly scattered with numerous small light brown spots.
：More than 10 locations of lowland and highland natural woodlands as well as highland grasslands have records
Adult flight period
Late October to late November
：Males become active 30 minutes after sunset, often occur in large number, flying slowly and showing continuous glow
. 30 minutes later, quantity drops and almost all disappear after further 15 minutes. Female is seldom encountered, found on rocks or branches in open areas, bending its abdomen upward, showing the light.
雄 Male 雄 Male 雄 Male 雄螢被蜘蛛網捕獲 Male fireflies captured by spider web