S. Mahunka szerk.: Folia Entomologica Hungarica 65. (Budapest, 2004)

Ectoproct elongated (Fig. 253A), uncini U-shaped in caudal view (Fig. 253D) „„ Semidalis vicina Ectoproct moderately long (Fig. 252A), uncini in caudal view rectangular, with a dorsal incision (Fig. 252D) Semidalis unicornis Distal part of paramere supported by a plate-like sclerite ventrally (Figs 251 A, B), or a narrow ventral branch is connected to the wide dorsal one (Fig. 254A) 5 Paramere other 6 Distal part of paramere very wide, subtriangular (Fig. 25IB), and supported by a plate-like sclerite (Fig. 251 A) Semidalis tenuipennis A narrow ventral branch is connected to the wide dorsal one of the paramere (Fig. 254A); the fused uncini Y-shaped Semidalisypsilon Plate-like distal part of paramere oval (Fig. 249B) 7 Distal part of paramere not oval (Figs 246B, 250B) 8 Distal part of paramere with two moderately long dorsal hooks before the final hook (Fig. 247B) Semidalis bicornis Distal part of paramere without other hooks before the final one (Fig. 249B); ectoproct with a long, straight projection (Fig 249A) Semidalisgrancanariensis Distal part of paramere with two large teeth dorsally (Fig. 246B) Semidalis aleyrodiformis Distal part of paramere with two very small teeth dorsally (Fig. 250B) Semidalis teneriffae Key to the species of Semidalis Candida group 1 Hypandrium caudally ending in a long thorn (Fig. 256A) Semidalis Candida - Hypandrium caudally ending in a small rounded knob (Figs 257A, B) Semidalis pseudouncinata Key to the species of Semidalis decipiens group 1 Ectoproct in lateral view broad, rounded; its end directed downwards (Fig. 259A) Semidalis decipiens Ectoproct in lateral view tapering; its end directed backwards (Fig. 260A) Semidalis macieodi Key to the species of Semidalis marginális group 1 Uncini in lateral view seems to be separated from the widened ventral part of paramere (Fig. 26IB) Semidalis anchoroides - Uncini in lateral view seems to be connected to the widened ventral part of paramere (Fig. 262B) Semidalis biprojecta