Male 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 period
:
Late April to early June
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.