treatment provided by
Genus Obscura Fibiger , new genus
Type-species: Obscura davisi Fibiger , new species.
Diagnosis. Imago (external). Wingspan: 7–12 mm (including fringes); type-species 7 mm.
Labial palps: porrect; second segment brown outside, beige inside, roughly scaled vertically; third segment 1/3 of second, narrow, cylindrical; basal 2/3 brown, outwards beige.
Head, patagia, anterior part of tegulae, prothorax, basal part of costa, costal part of medial area: black, costal medial area quadrangular.
Forewing ground colour: grey (type-species) or grey brown or light brown, suffused with brown and black scales.
Abdomen: grey, with dorsal tuft on basal segment.
Crosslines: antemedial, postmedial, and subterminal line present, distinct (type-species) or indistinct; black or brown (type-species).
Terminal line: marked by black interneural dots.
Reniform stigma: yellow (type-species) or white.
Hindwing: grey, discal spot absent (type-species) or indistinct.
Underside: forewing grey brown; hindwing grey, with discal spot.
Male genitalia. Tegumen: relatively narrow throughout.
Vinculum: relatively stout, twice as broad as tegumen.
Saccus: tip long and narrow, V shaped.
Valvae: relatively narrow, slightly asymmetrical.
Clasper: barlike, slightly oblique to valva margins.
Ampulla: relatively small, slightly asymmetrical, semi-globular, apically smoothly rounded (apo.).
Juxta: slightly wider than long, platelike.
Phallus: almost straight, slightly curved, broadest by ductus ejaculatorius.
Vesica: with sclerites.
Female genitalia. Ovipositor: short, smoothly rounded posteriorly and at corners.
Posterior apophyses: as long as ovipositor.
Anterior apophyses: slightly longer than posterior apophyses (type-species).
7 th and 8 th abdominal segment: fused throughout.
Ostium: narrow (type-species), slightly displaced to left.
Antrum: cylindrical; twice as long as posterior apophyses (apo.).
Ductus bursae: membranous and narrow, 1.5 times length of corpus bursae (apo.).
Corpus bursae: globular.
Appendix bursae: arising posteriorly from ductus bursae.
Signum: cross shaped.
- small and medium size;
in female genitalia, in
- corpus bursae semi-globular, relatively small;
- antrum cylindrical;
- ductus bursae narrow and long.
Distribution. Species of Obscura are known from a large disjunct area, N Thailand, Indonesia (Sumatra), and Sri Lanka.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.