Fig. 2
From: Ctenocephalides canis is the dominant flea species of dogs in the Republic of Korea
Characteristic features of Ctenocephalides canis and Ctenocephalides orientis collected from dogs in Korea. a C. canis with a bluntly rounded frons or head (A) and a short stout dorsal incrassation (B). The first spine (C) of the genal ctenidia was close to half the length of the second spine. b The dorso-posterior margin of the hind tibia bore two notches with stout stetae (white arrows) between the post median and apical setae. c C. orientis was characterized by a round frons (A) and a short, club-shaped dorsal incrassation (B) similar to C. canis. The first spine (C) of the genal ctenidia was close to the length of the second spine (not in focus). d The dorso-posterior margin of the hind tibia bore one notch with stout stetae (black arrow) between the post median and apical setae