Six more specimens of the serrativalva type were dissected: a male that appears to represent a further species or a variant on erectivalva; five females of two taxa that may relate to any of the above male-based taxa.
Male 19919 (labelled just ‘Sarawak’; Fig 348). This has shorter, more triangular valves than erectivalva, these having a very small, inwardly directed subapical spur. The transtillar bridge bears coarse spines that are not seen in erectivalva. The aedeagus has a vesica similar to that of acutivalva but, in addition, has a small spine near its apex.
Females 19975, 20002 (labelled just ‘Sarawak’; Fig 337). The ostium is flanked by two rather crumpled, elongate lobes. The ductus is short, curved, expanding into a sclerotised basal part of the bursa that also has a crumpled appearance. The distal part of the corpus bursae is ovate, unornamented apart from the two signa.
Females 19909 (Bidi, Sarawak; Fig 335), 19910 (Kinabalu area; Waterstradt), and 20001 (Sarawak). The ductus is broad, straight, thickened and somewhat sclerotised, running from the ostium to a similarly thickened, spherical lateral lobe at its junction with the corpus bursae; the ductus seminalis arises from this. The rest of the corpus bursae is ovate as in the previous species.
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