Novel characters in the identification of Ctonoxylon species. Curly brackets illustrate 1 widely separated eye parts and 4 a narrow separation by less than half the size of upper part. Black arrows indicate 1 a sharply pointed eye scraper or 6 a reduced and rounded nodule. White arrows indicate 1–2 the position of a sharp carina running from just above the eye scraper to procoxa, or in that same position 3 an elongated groove, or 4–6 a series of deep pits. Yellow arrows indicate 5–7 the position of a propleural pit. Dark blue arrow 8 points at the swollen mark from the mesotibia’s resting position. The pale blue arrow 9 indicates unusually broad and elongated setae on the posterior part of the metaventrite.