Pollex (Bilobiana) oculus Fibiger, 2007, new species
Creators
Description
(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.
Notes
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- MF, ZMUC , R , USNM , ZMUC
- Event date
- 1961-09-19 , 1961-10-08 , 1965-12-14
- Family
- Erebidae
- Genus
- Pollex
- Kingdom
- Animalia
- Order
- Lepidoptera
- Phylum
- Arthropoda
- Scientific name authorship
- Fibiger
- Species
- oculus
- Taxon rank
- species
- Type status
- holotype , paratype
- Verbatim event date
- 1961-09-19/27 , 1961-10-08 , 1961-10-08/12 , 1965-12-14
- Taxonomic concept label
- Pollex (Bilobiana) oculus Fibiger, 2007