These several considerations make me believe that the wingless condition of so many Madeira beetles is mainly due to the action of natural selection, combined probably with disuse.
gogoramen ezberdin hauek guztiok pentsarazten didate Madeirako irlan hainbeste kakarraldo hegogabe egotea, nagusiki hautespen natualaren ondorio dela, erabilerarik ezarekin konbinaturik nonbait.