|Castnia invaria |
The length of the forewings is 62-80 mm. Adults are greyish brown with a blue-green hue. There are two parallel whitish bands on the hindwings that extend from the costal margin toward the inner angle (lower band) and the anal margin (upper band). A third, shorter and thinner, apical band extends from the costal margin to the inner angle. The hindwings are reddish with a greyish-brown base and two black or dark brown bands that form two bands of red spots.
The larvae feed on Ananas species (including Ananas comosus) and wild terrestrial Bromeliaceae species. The larvae form large tunnels in the centre of pineapple plants and at sometimes also feed on the flowers or young fruits.
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