Pollex (Bilobiana) oculus Fibiger, 2007, new species

(Plate 8, figures 2–4; male genit. plate 18, figures 1, 2; female genit. plate 25, figure 2)

Material examined.

Holotype: male, Philippines, Balabac, Dalawan Bay, 8.x.1961, leg. Noona Dan Exp. 1961–62, genit. prep. 3502 M. Fibiger. Coll. ZMUC.

Paratypes: 10 males, 1 female: 7 males and 1 female with same data as holotype but 8–12.x.1961, male genit. preps 2948, 3488, 3500, 3504, 3530, 3542, 3543, female 3487 M. Fibiger. Colls. MF, ZMUC. 2 males, Philippines, Palawan, Bookes Point, Uring Uring, 19. and 27.ix.1961, genit. preps 2945, 5642 M. Fibiger. Colls. MF, ZMUC. 1 male, Philippines, Palawan, Aboabo, 134 km S Puerto Princessa, 14.xii.1965, leg. D. R. Davis, genit. prep. 5730 M. Fibiger. Coll. USNM.

Diagnosis.

Wingspan: 8–10 mm.

Forewing: narrow, light brown by medial area, rest of wing dark brown.

Transverse lines: brown; terminal line marked by black dots between veins.

Reniform: distinct, whitish grey, outlined by a narrow black line.

Hindwing: unicolorous dark brown with an indistinct black discal spot.

Underside: unicolorous dark brown.

Male genitalia.

Tegumen: narrow.

Vinculum: short, stout.

Saccus: U-shaped, short.

Fultura superior: T-shaped with one narrow arm on each side, fused with upper middle part of tegumen and ventrally broadly with juxta-anellus; each horizontal arm with a prominent, spike-like, dorsoventrally directed process.

Valve: shorter than wide.

Ampulla: almost symmetrical, relatively short, subapically broadest; densely setose with long hair-like setae bent inwards.

Pollex: symmetrical, prominent, almost as long as ampulla, slightly upturned and almost equally broad throughout; subapically densely setose with long, hair-like setae bent inwards.

Digitus: almost symmetrical; relatively short, tapered, directed slightly ventrally, pointed apically.

Juxta-anellus plate: large, higher than wide.

Phallus: long, curved, slightly tapered towards apex; coecum short and narrow.

Vesica: unarmed.

Female genitalia.

7 th abdominal segment: heavily sclerotised, asymmetrical.

Anterior apophyses: length 1½ of posterior apophyses.

Position of ostium bursae: medially in 7 th segment, slightly displaced to left.

Ostium bursae: heavily sclerotised all way round.

Antrum: short, cylindrical, heavily sclerotised.

Ductus bursae: membranous, long, 3 X longer than corpus bursae.

Corpus bursae: globular.

Appendix bursae: arising anteriorly from ductus bursae immediately after antrum.

Differential diagnosis.

P. oculus differs from other species by the almost symmetrical digitus, ampulla, and pollex, the spike-like processes from the fultura superior, the unarmed phallus, and the short cylindrical, heavily sclerotised antrum.