Luciola laticollis

寬胸熠螢 Broad-necked Flasher

形態特徵:體長6.5-8.0毫米。前胸背板前方中部有大黑斑,黑斑大小和深淺有個體差異; 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。與 Luciola nr. laticollis 近似,但本種較大,有淺色鞘翅邊緣,發光模式是複式脈沖閃光。


分佈地點:大嶼山昂平、地塘仔、二東山、亞婆塱、梅窩。


成蟲活躍月份:5-6月


其他資料:成蟲在茂盛的樹林內活動,有時百計成蟲在同一地點同時出現。雄螢在空中發出每個閃光相隔0.5-0.7秒,每個閃光持續0.5-0.6秒,由4-8個緊連脈沖組成。本種類似Luciola nr curtithorax,但本種具有清晰的淺色鞘質邊緣,後胸腹板通常為橙色,而不是後者的深棕色。體型較大 - 本種的體長為 6.5 – 8 毫米,後者為 5.0 – 6.0 毫米。



Morphological featuresBody length 6.5-8.0 mm, a large black mark at the middle of pronotum anterior region, size and darkness of the mark varies across individuals; light organs occupying ventrite 6 & 7 in male; only ventrite 6 in female. Female resembles male, but with smaller compound eyes.


DistributionNgong Ping (Lantau), Tei Tong Tsai, Yi Tung Shan, A Po Long, Mui Wo.


Adult flight periodMay to June.


Other information:Adults are found at dense woodlands, sometimes hundreds of individuals appear at the same time. Flying males display flashes with inter-flash ranges from 0.5-0.7 S, flash duration 0.5-0.6 s, composed of 4-8 closely connected pulses.


This species resembles Luciola nr. curtithorax but this species has clear pale elytral rims, metasternum is generally orange instead of dark brown in the latter. Body size is larger - Body length 6.5 – 8 mm for this species, 5.0 – 6.0 mm for the latter.








Male
20140528-205036


Female
20140528-210457


Male
20140528-205116


Male
20140528-210841


Male
20140528-205517


Male
20140603-005528


Female
20140528-210333


Female
20140528-210409


雄螢閃光 Male flashes
140601 Tei Tong Tsai


雄螢閃光模式 Male flash pattern
Luciola unknown (Tei Tong Tsai) 1


雄螢閃光 Male flashes

擬紋螢 Luciola laticollis from Hong Kong Fireflies on Vimeo.