Sinodendron cylindricum

Scientific profile

Sinodendron cylindricum belongs to the family Lucanidae (stag beetles). The adult beetle has a body length of about 1.2 centimetres and a mass of roughly 0.16 grams. The body is cylindrical in shape (roundness 0.89), with a width of 5.1 mm and height of 4.5 mm. The head is 2.3 mm wide and carries relatively small mandibles 0.7 mm long. The antennae measure 1.4 mm, and the eyes are small, with an area of 0.26 mm². The pronotum is 4.6 mm wide and 3.5 mm long. The elytra are 7.4 mm long and 2.3 mm wide. The wings are well-developed, with a length of 14.0 mm and area of 55.5 mm², yielding a wing load of 2.9 and an aspect ratio of 3.0. The beetle has a total hairiness index of 4.2; hairs are densest on the head (12.4) and absent from the dorsal abdomen (0.0). The colour is relatively light, with a lightness value of 105.1. Sexual dimorphism is moderate (score 1.0), with differences likely expressed in head and mandible structures.