Allomalia cf. quadrivirgata (COSTA, 1863)

The high number of synonyms of A. quadrivirgata listed by Alonso-Zarazaga (2011) already points out that this species shows a considerable morphological variability. On the other hand, the various forms described do not show relevant differences concerning the shape of the apex of the penis as was shown by Giordani-Soika (1937) and Alonso-Zarazaga (1989).

In the present case of the specimens from Samos, the habitus is not different from the general variability of the species (Figs 5A), but the shape of the apex of the penis is interestingly very different (Figs 5B–D). Only a revision of the genus Allomalia Alonso-Zarazaga, 1989 will show the significance of this trait.