A description of the female and larva of the relic species Ixodes ghilarovi (Ixodidae)

Ixodes (Exopalpiger) ghilarovi was found in 4 separated localities of the Great Caucasus at a height of 1000 to 2200 m above sea level. Female differs from palaearctic I. (Exopalpiger) trianguliceps in 4-4 pairs of setae of the anal valve, shape of scutum, longer setae of alloscutum, more round peritreme, correlation between the length of peritreme longitudinal diameter and the length of longitudinal diameter of the anal ring, presence of auricles and shape of palps. Larva differs from I. trianguliceps in longer setae of alloscutum, longer ventrolateral tooth of 1st palpal joint and longer medial tooth of coxae I.