Curtos fulvocapitalis

黃頭脈翅螢 Yellow-headed Double Flash

形態特徵:體長6-9毫米。頭頂黃褐色,有些個體頭頂較深色;鞘翅有一道顯著縱隆脊;雄螢發光器位於整個第6腹板和第7腹板。 雌螢與雄螢外表近似,複眼較細小,發光器位於整個第6腹板。


分佈地點:梧桐寨河谷、沙螺洞、林村谷、蓮澳。


成蟲活躍月份:5-6月


其他資料:多在低地棄耕農田出現,有時數以千計同時出現。雄螢閃光相隔約2.5秒,每個閃光維持約0.1秒,由兩個緊接的脈沖組成。



Morphological featuresBody length 11-12 mm, vertex yellowish brown, some individuals have darker vertex; elytra bearing a prominent longitudinal ridge; light organs occupying ventrite 6 & 7 in male; only ventrite 6 in female. Female resembles male, but with smaller compound eyes.

DistributionNg Tung Chai Valley, Sha Lo Tung, Lam Tsuen Valley, Lin Au.


Adult flight periodMay to June.


Other information:Often found in lowland abandoned farmland, sometimes thousands appear at the same time. Flying male displays flashes with about 100 ms duration and inter-flash intervals of 2.5 s, each flash is composed of 2 closely connected pulses




Male
20170610-080329


Female
20120529-00105900


Male
20120529-00044644


Male
20170610-080036


Male
20170610-080716


Female
20100608-215308


Female
20120529-00001800


Female
20120529-00080600


雄螢閃光 Male flashes
stacking 2


雄螢閃光 Male flashes
stacking3


雄螢閃光模式 Male flash pattern
Curtos fulvocapitalis male flash



雄螢閃光 Male flashes

黃頭脈翅螢(雄) Curtos fulvocapitalis (Female) from Hong Kong Fireflies on Vimeo.