EN
The Spanish species of the genus Adelphenaldis Fischer is reviewed. The description of a new species, A. maxfischeri sp. nov., and redescriptions of the recorded for Spain for the first time A. globipes (Fischer 1962) (comb. nov.) and A. spiritalis (Tobias 1992) (comb. nov.) are proposed. Synaldis georgica Fischer 1993 is synonymised with S. globipes Fischer 1962 (syn. nov.). The following new combinations are suggested: Adelphenaldis acutidentata (Fischer), comb. nov., A. cultrata (Belokobylskij), comb. nov., A. moniliata (Belokobylskij), comb. nov., A. pacifica (Belokobylskij), comb. nov., A. paraclypealis (Fischer), comb. nov., A. parvicornis (Thomson), comb. nov., A. ryukyuensis (Belokobylskij), comb. nov., A. spasskensis (Belokobylskij), comb. nov. A key to the world species of the genus Adelphenaldis is given.