Figs 138–145. Pteremis apterina sp. nov., male and female, paratypes. 138 – male left t2 and mt2 posteriorly; 139 – ditto, dorsally; 140 – ditto, anteriorly; 141 – female S10, ventrally; 142 – female S8 (unfolded), ventrally, 143 – spectacles-shaped sclerite, ventrally; 144 – female S8 (with posterior part incurved), ventrally; 145 – ditto, laterally. Fig. 142 based on paratype from Santa Maria I., others on paratypes from São Miguel I. Scales = 0.2 mm (Figs 138–140), 0.05 mm (others).