Acalles iblanensis sp. nov.

1. Clubbed bristles on the elytral intervals are at most 2.5x as long as; their distances range from two to three times the length of a bristle (digit 34).

2. Elytra slightly obovate; behind the middle acuminate-ovally rounded towards the apex (Fig. 3). 3. Apex of the aedeagus (ventral view) elongate and smaller, endophallus with two lines (Fig. 5). Acalles asniensis

1*. Clubbed bristles on the elytral intervals at least 3x as long as, placed much closer (digit 35’). 2*. Elytra broader, laterally short-ovally rounded, and broadly rounded towards the apex (couplet 34 vs. 34’, 35’). 3. Apex of the aedeagus (ventral view) broader; endophallus has a differently shaped structure (digit 35’).

The aedeagus of the new species is very similar to the aedeagus of Acalles almeriaensis Stüben, 2001, a widespread species from the south-west of Spain. But the new species from Morocco does not seem to be closely related to this species (couplet 34 vs. 24).