O. Merkl szerk.: Folia Entomologica Hungarica 66. (Budapest, 2005)

9 Stylus distinctly forked, its posterior branch well developed, running into caudal or ventro-caudal direction (Fig. 50) 10 - Stylus usually unforked; if forked then posterior branch small (Fig. 62), or directed upwards (Fig. 60); C. stylobasalis has a transitional position: stylus forked, its caudal branch directed backwards, but processus terminális indistinct (Figs 42, 44) 11 10 Posterior branch of stylus long, acute, running into caudo-ventral direction (Fig. 50); anterior stylus branches not fused, or fused, but in this case not forming median ventral projection (Fig. 52) C. (X.) maculithorax group - Posterior branch of stylus either broad, lobiform, directed caudally, or pointed and running into caudo-ventral direction, but in this case fused anterior branches forming a median ventral projection (Figs 45-46) C. (X.) crassicornis group 11 Scale-like hairs absent from flagellar segments of male antennae (Fig. 47) C. (X.) diversicornis group - Scale-like hairs present on flagellar segments of male antennae (Fig. 40) 12 12 Gonarcus ending in a separate, long, thorn-, or claw-like caudal projection (Fig. 48) 13 - Gonarcus not ending in a separate, long, thorn- or claw-like caudal projection, or, at least it is short (Figs 36, 62) 14 13 Processus lateralis in ventral view more than two times longer than hypandrium between this sclerite and processus terminális (Fig. 49) C. (X.) loipetsederi group - Processus lateralis in ventral view only slightly (at most two times) longer than hypandrium between this sclerite and processus terminális (Fig. 59) C. (X.) pembertoni group 14 Peculiar large sclerite present behind stylus (Fig. 53) C. (X.) mongolica group Peculiar large sclerite absent behind stylus 15 15 Processus apicalis of paramere with very long projection directed forward, or with a fused, collar-like structure (Figs 41, 43) C. (X.) collaris group Structure of paramere not as above 16