body length 4.3-4.9 mm, posterior margin of V7 trisinuate with posterior lateral projection no longer or wider than the median posterior projection which is bifurcate ended ; light organs occupying ventrite 6 & 7 in male. Female body length 5.7-6.1 mm, resembles male, but with smaller compound eyes, light organ only covers ventrite 6.
Yi Tung Shan, Tung She O, Ng Tung Chai Valley, Ping Shan Chai, Hok Tau Reservoir,
Adult flight period
May - June
： Flying male displays simple flash pattern composed of repeated pulsations with duration of 145 ms and inter-pulse interval of 580 – 670 ms. Female prefers to stay on foliage and only occasionally flies. Endemic to Hong Kong.
雄 Male 雌 Female 雄 Male 雄 Male 雄 Male 雄 Male 雄 Male
雌 Female 雌 Female 雌 Female 雌 Female 雌 Female 雌 Female 雄螢閃光 Male flashes 雄螢閃光模式 Male flash pattern 雄螢閃光 Male flashes