Oculogryphus chenghoiyanae

鄭凱甄怪眼螢 Chenghoiyan Ototretine firefly

形態特徵:雄螢體長約5 毫米,複眼巨大,有一顯著凹陷;外貌似凹眼螢,但絲狀觸角只有11節,鞘翅較短寬。雌螢無翅,淡黄色,胸背板和第1-4塊腹背板有紅褐色斑。腹部第七節有一對發光器,位於兩側。


分佈地點:地塘仔。


成蟲活躍月份:5


其他資料:不像凹眼螢,雌螢發光時,腹部不上舉。紫外光照射下,雌螢全身發出藍綠色熒光。在黑暗環境中,可見雄螢腹部發出兩點微弱光點。香港特有種。



Morphological featuresMale body length 5 mm; compound eyes very large, with a prominent indentation. General appearance resembles Rhagophthalmus, but the filiform antennae are 11-segmented, elytra are shorter and boarder.
Female wingless, ground colour pale yellow, with flecked reddish brown markings on all thoracic tergites and 1-4th abdominal tergites. A pair of light organs located at the lateral side of 7th abdominal segment.


Distribution:Tei Tong Tsai.


Adult flight periodMay


Other information:Female does not raise its abdomen as Rhagophthalmus when displaying light. Female fluoresce in bluish green from body under ultraviolet illumination. A pair of very dim light spots can be observed from the male's abdomen in darkness. Endemic to Hong Kong.





Male
20170509-222426A


Male20170509-222425B


Male
20170511-002831


雌 Female
QN9C9697

雌 Female
20170512-195148A

雌 Female
20170508-202841


雌 Female
20170519-202337


雌 Female (紫外光照射 Under UV)
20170512-203856