Pyrocoelia analis
寬緣窗螢 Rimmed Window Firefly
形態特徵:雄螢體長12-18毫米,背板前方窗口細小,鞘翅邊緣橙色,外緣色斑較寬,發光器橫型,位於第六、七腹板。雌螢體長28亳米,橙色,有一對短小鞘翅,第六、七腹板各有一對點狀發光器。幼蟲黑色,散佈不規則淺褐色小點,一對發光器位於第八腹節兩側,最後兩節背兩側板皆弧圓,有別於弦月窗螢幼蟲最後兩節背板兩側近平直。分佈地點:在鄉郊、農田、棄耕農田、漁塘濕地均常見,間中在市區亦有紀錄,但較少在林區出沒。
成蟲活躍月份:3月至12月
其他資料:雄螢雖常見,但數量不多,通常只見一至數隻,在空中慢飛、發持續的光;晚間活動時間較長,至午夜仍見。雌螢極罕見。幼蟲取食蝸牛。
Morphological features:Male body length 12-18 mm, windows at the posterior part of the pronotum small; elytra with orange rim, outer margin broader; light organs transverse, located at 6th and 7th ventrite. Female body length 28 mm, orange in colour, bearing a pair of short and small elytra, light organs rounded, one pair at 6th abdominal ventrite, another pair at 7th. Larva black, irregularly scattered with small light brown spots, a pair of light organs located at 8th abdominal segment. Lateral sides of the last 2 tergites rounded, different from the more straight lateral sides of the last 2 tergites in Pyrocoelia lunata.
Distribution:Commonly seen in countryside, farmlands, abandoned farmlands, fish ponds, wetlands, occasionally even in the city, but less commonly seen in woodland areas.
Adult flight period:March to December
Other information:Male is commonly seen, but not in large number, usually in one to a few individuals, flying slowly, showing continuous glow, activity duration long, could be seen till midnight. Female is very rarely recorded. Larva feeds on snails.

雌 Female

幼蟲 Larva

雄 Male

雄 Male

雄 Male

螢光軌跡 Light track

雌 Female

雌 Female

雌蛹 Female pupa

成熟幼蟲 Mature larva

年幼幼蟲 Young larva

幼蟲捕食蝸牛 Larva predating a snail

幼蟲末節 Terminal segments of a larva
