Xylotrechus (Kostiniclytus) medvedevi Danilevsky, 2009 ([Holotype] Mongolia, Kobd aimak, Elkhon, about 25 km southwards Altai ZIN)
Male: Distal part of eyes comparatively wide. Pronotum with wide median stripe consisting of brown recumbent hairs,
remaining surface of pronotum (partly except paramedial depressions) covered with dense white hairs, concealing cuticula.
Lateral lobes of tegmen relatively elongate, widened at apex; posterior process of tegmen short, curved inward. Apex of aedeagus angulate.
Body pubescence mostly sparse, not concealing cuticula at elytra and abdomen. Denser white hairs forming dithered pattern
viewed as oblique stripe before the middle and oblique stripe behind the middle; background of elytral pubescence consisting of intermixed white and brownish yellow or yellowish brown hairs. Lobes of protarsomere 3 relatively narrow, narrowed towards apex. Apical tarsomere longer than tarsomeres 2 and 3 combined. Aedeagus at apical half with lateral emarginations, with preapical obtuse angles protruding outwards. Frontal carinae look like wide elevated plate. Metatarsomeres 2 and 3 combined about 1/2 as long as metatarsomere 1.
Body length: 10 mm.
Type locality. Mongolia, Kobd aimak, Elkhon, about 25 km southwards Altai somon, about 45°22'N, 92°17'E.