Dausara orionalis Walker
- Family: Crambidae
- Subfamily: Odontiinae
- Genus: Dausara
- Distribution: Sabah, Sarawak, Kalimantan Berat.
- Habitat: Lowland primary & disturbed forest.
- Wing Length: 12mm
Taxonomy
The holotype of Dausara orionalis Walker, 1859: 501 from Kalimantan Berat, is in the BMNH.
Description
Like all Dausara spp. the wings are silvery white with broad purple wing margins. It closely resembles D. chiangmai Yoshiyasu, 1995: 96 Figs 1B, 4-5, 7C-D, 8B, E). In these two sp. the PML is relatively smooth (slightly undulating) whereas the PML in D. marginalis and latiterminalis is distinctly irregular.
The HW tornus of the male is ‘much protruded’ and it has narrower pale FW fascia compared with the female.
The abdomen is blue grey with paler sides, as is the thorax which laterally, is covered by long white tegulae.
Yoshiyasu (1995) gives a key to Thai spp..
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References
- Yoshiyasu, Y., (1995) The Genus Dausara Walker of Thailand (Lepidoptera: Pyralidae), Microlepidoptera of Thailand, 3 (July 31, 1996); 93-103, Figs. 1-8.
- Schulze, C.H. (2000) Auswirkungen anthropogener Störungen auf die Diversität von Herbivoren. (Analys von Nachtfalterzönosen entlang von Habitatgradienten in Ost-Malaysia). Unpubl. PhD Thesis, University of Bayreuth, Germany: 350 pp.
- Walker, F. (1859c) Pyralides. In; List Spec. Lepid. Ins. Coll. B. M., Cat. Lepid. Heterocera. 17: 255-508.
