expected that its distribution will increase to the north with climate change. Description Adults Developed body (imago) is black, with brown elytra and brown-black feet; there are two pairs of bright spots of hair on pronotum. The size and shape of jaws and antennae varies among individuals. Antennae are dotted and rather long. Their first segment is short and thickened. The third segment is extended and is longer than the fourth and fifth segments combined. The fourth segment is equal or slightly longer than the fifth, and the 11th segment is longer than the first. The lower parts of third to tenth segments have spines. Mandibles are two-toothed and are very large in males, longer than the head; they are much shorter in females. The upper side of the jaw is covered with coarse, wrinkled punctation, and the lower jaw and lower lip have thick shaggy orange felt. Pronotum is convex, with narrow spines on its sides; the spines are longer in females than males. Scutellum is densely covered with yellowish hairs. Elytra are very long, spotted and rounded at their top; they are more shining in males than in females. Larvae, egg and pupa Larvae are white, with black mandibles; the front half of pronotum has a transverse red stripe, which can have four narrow grooves. Larval body is massive, yellowish-white and covered with sparse, fine yellowish hairs. The head is strongly retracted into prothorax, epistoma is well delimited. Frontal sutures are distinct, longitudinal edges are sharply defined. Hypostome consists of two longitudinal sclerites, which are moved apart by the protruding regularly plate. Clypeus is small, transverse, whitish. Pronotum covers much of the head. The shield of pronotum is smooth at its front, and its back is densely covered with wrinkles. Thoracic legs are short, with long claws, covered with thick bristles. The egg has an oval shape and is long. It is pink in the early stage, then darkens and turns black. The chorion of the egg has deep, thick, slightly faceted cells. The gaps between the cells are smaller than the cells themselves. Pupa has a sturdy body, antennae are pressed to the sides. A narrow longitudinal groove runs in the middle of pronotum. Abdomen is broad, strongly narrowed to the top. Abdominal tergites are protruding and covered in short thick spines. Lifestyle Callipogon relictus inhabits mixed and deciduous forests. It is unknown whether it inhabits temperate