To clarify the phylogenetic relationships among the four species of the genus Luehdorfia, L. puziloi (Erschoff), L. japonica Leech, L. chinensis Leech and L. longicaudata Lee, the male and female genitalia of these species are studied. Based on the morphological characters of the genitalia, especially those of the epicosta, lateral process of dorsum, valva, and juxta in male, and of the 8th abdominal tergum and sternum in female, a cladogram is proposed.
 View full abstract