Diaphanes lampyroides

锯角雪螢  Snowy Window Firefly

 

Morphological features：

Male body length 14-16 mm, body shape more slender than Diaphanes citrinus; windows located at the anterior region of pronotum are smaller and narrower; antennae well developed, serrate; light organ transverse, located at the 6th and 7th ventrite. Female body length 20-29 mm, completely wingless, antennae serrate, distinguised from the filiform antennae of Diaphanes citrinus; light organs transverse, located at ventrite 6 and 7. Larva dark brown, irregularly scattered with numerous small light brown spots. brown spots.

Distribution：Guangdong, Guangxi , Hongkong

 

Adult flight period：

Late November to early January

 

Other information：

Males become active 30 minutes after sunset, often occur in large number, flying slowly and showing continuous glow. 30 minutes later, quantity drops and almost all disappear after further 15 minutes. Female is seldom encountered, found on rocks or branches in open areas, bending its abdomen upward, showing the light.

 

形态特征：

雄萤体长约14-16毫米，体形比橙萤修长，触角发达，锯齿状；前胸背板前方的窗比较狭小；发光器横形，位于第六、七腹板。雌萤体长20-29毫米，完全无翅，触角锯齿状，有别于橙萤的丝状，发光器横形，位于第六、七腹板。幼虫黑褐色，不规则地散满大量黄褐色小点，一对发光器位于第八腹节。幼虫以蚯蚓为食。

 

分布地点：

广东茂名、广州、东莞、韶关、广西、香港

在多个低地及高地的天然林区、以及高地草地均有记录。

 

成虫活跃月份：

11月下旬至1月上旬

 

其他资料：

– 雄萤在日落后半小时开始活跃，常大量涌现，在空中慢飞并发出持续的萤光，约30分钟后开始减弱，45分钟后基本上完全消失。

– 雌萤少见，在空旷地方爬上石块或树枝，腹面向上展露萤光。