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

Semidalis rectangula group - Speciej4ncluded: S. rectangula YANG et LlU, 1994. - Main distinctive features: paramere curved up in right angle, and is very thin distally. - Distribution: China. Semidalis scotti group - Species included: S. scotti ESBEN-PETERSEN, 1928. - Main distinctive feature: in addition to the uncini there is a peculiar sclerite below the parameres. - Distribution: East Africa and Yemen. KEYS TO THE SPECIES GROUPS Key to the species groups of the genus Aleuropteryx 1 Ninth sternite undivided, massive (Fig. 1) A. argentata group - Ninth sternite divided (Figs 3,5) 2 2 Two sides of dorsal part of 9th sternite connected dorso-caudally by strong, folded arch; penis usually short (Figs 2-3) A. loewii group - Two sides of dorsal part of 9th sternite not connected dorso-caudally by strong, folded arch; however, a horizontal dorsal plate often present above the penis, but this plate is connected to 9th sternite only in a point, or with a membrane; penis usually long (Figs 4, 6-7) A. loewii group Key to the species groups of the genus Heteroconis 1 Basal cross-vein Rs-M between the two thickenings of M (Fig. 10) H. terminális group Basal cross-vein Rs-M distally of both thickenings of M (Fig. 9), or seldom situated at the distal thickening (Fig. 8) H. ornata group Key to the species groups of the genus Nimboa 1 Stylus unforked (Fig 12) or forked, but in this case with a stout basal side branch (Fig. 11) N. basipunctata group Stylus forked having a slender median or subapical side branch (Fig. 14) N. macroptera group