The N. admiranda species-group

Diagnosis. The coloration and the pattern are similar to those of the N. sumatrana species-group. In the male genitalia, the N. admiranda species-group differs from other species-groups in the combination of such features as the broad, almost elliptical valve, the presence of the ventral-apical costal process, the thin, spike-shaped distalventral costal process, the ventral costal plate directed at a small angle to the costa, the very large ampulla, the absence of a subapical saccular process, and the extremely long and broad medial diverticulum of vesica armed with spines apically. In the female genitalia, the fascia-shaped, inflated postvaginal plate and the reduction of the appendix bursae are unique within the genus.