Nascia cilialis, the orange-rayed pearl, is a moth of the family Crambidae. It is found from southern and central Europe to Japan.

Nascia cilialis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Crambidae
Genus: Nascia
Species:
N. cilialis
Binomial name
Nascia cilialis
(Hübner, 1796)
Synonyms
  • Pyralis cilialis Hübner, 1796
  • Botys venosalis Nolcken, 1848
  • Nascia cilialis christophi Munroe & Mutuura, 1968
  • Nascia cilialis kumatai Munroe & Mutuura, 1968
  • Pyrausta cilialis var. simplalis Caradja, 1916
  • Pyrausta virgata Reutti, 1853
  • Nascia cilialis virgatalis (Christoph, 1881)

The wingspan is 24–27 mm. Adults are on wing from June to July.

The larvae feed on greater pond sedge (Carex riparia) and sometimes other sedges.

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