Grammoptera ruficornis

Scientific profile

Grammoptera ruficornis is a diminutive longhorn beetle with a body length of 0.721 centimetres and a body width of 1.663 millimetres. The body cross-section is nearly circular, as indicated by a roundness value of 1.011, and the body height is 1.681 millimetres. The head is roughly as wide as it is long, with a head width of 1.012 millimetres and a head length of 0.977 millimetres. The compound eyes are small, each about 0.493 millimetres long and with an area of 0.13 square millimetres. The antennae are short for a cerambycid, measuring 2.367 millimetres. The pronotum is 1.185 millimetres long and 1.095 millimetres wide. The elytra reach 4.122 millimetres in length and taper to a combined width of 0.954 millimetres, while the overall wing width is 2.146 millimetres. A pronounced hairiness is present across the body: the ventral abdomen is the most densely hairy region (39.239), followed by the dorsal pronotum (31.196) and the head (23.891), with a total hairiness score of 28.036. The dorsal abdomen is comparatively less hairy (17.82). The legs are slender; the hind femur is the longest at 2.09 millimetres, the mid femur 1.445 millimetres and the front femur 1.255 millimetres. The corresponding tibiae measure 2.042, 1.339 and 1.094 millimetres respectively. The mandibles are tiny, 0.334 millimetres in length and 0.059 millimetres at their proximal width, giving a low aspect ratio of 0.177. The overall colouration is pale, with a lightness value of 130.91. Males and females are indistinguishable in size and appearance, as the sexual dimorphism score is 0.0. Body mass is 0.006683 grams.