Measurements and terminology. 1a Aphelinus kazakhstanensis sp. n. female, head, dorsal view (TAMU-ENTO X0856040) (fvl: frontovertex length; hl: head length; hw: head width; ocp: posterior ocellus to occipital margin distance; ool: posterior ocellus to eye margin distance; ow: posterior ocellus width; pol: posterior interocellar distance) 1b Aphelinus sinensis sp. n. female, fore wing, dorsal view (TAMU-ENTO X0852875) (cc: costal cell length; lms: longest marginal seta length; mv: marginal vein length; wl: wing length; ww: wing width) 1c Aphelinus certus male genitalia, ventral view (TAMU-ENTO X0616479) (adg = aedeagus; dig = digiti; dnt = denticles; phl = phallobase) 1d Aphelinus atriplicis female, metasoma, ventral view (TAMU-ENTO X0616471) (ovp = ovipositor).