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  • Title: Immature Stages, Natural History, Systematics and Conservation of an Endangered Neotropical Butterfly: the Case of Scada karschina delicata (Nymphalidae: Ithomiini).
    Author: Freitas AVL, Rosa AHB, Nobre CEB, Melo DHA, Mota LL, Silva-Brandão KL, Machado PA, Carreira JYO.
    Journal: Neotrop Entomol; 2020 Oct; 49(5):685-695. PubMed ID: 32720063.
    Abstract:
    The endangered butterfly Scada karschina delicata Talbot, 1932 (Nymphalidae: Danainae: Ithomiini) is endemic to northeastern Brazil, occurring in very few forest remnants of the 'Pernambuco Center of Endemism'. Larvae feed on Solanaceae and are very similar to those of other species in the subtribe Mechanitina, with lateral projections on body, one of the main synapomorphies of this subtribe. Based on molecular data, S. k. delicata clustered together with S. karschina karschina, as a monophyletic group sister to the amazon clade of S. reckia. Based on all available data, S. k. delicata is known from only five localities of mid- to high-altitude forests (from 500 to 1000 m of altitude) in northeastern Brazil. Grounded on available data, a new assessment of extinction risk is proposed, and S. k. delicata is now considered Vulnerable (VU) taxon.
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