Siculodes straminula Pagenstecher, 1892

Queiroz-Santos, Luziany, Casagrande, Mirna Martins & Mielke, Olaf Hermann Hendrik, 2024, Taxonomic revision of Siculodes Guenée and revalidation of Aziba Walker (Lepidoptera, Thyrididae, Siculodinae, Siculodini), Zootaxa 5543 (4), pp. 501-538 : 517-518

Siculodes straminula Pagenstecher, 1892

( Figs 5 , 22 , 32 )

Siculodes straminula Pagenstecher, 1892 . Deutsche entomologische Zeitschrift“Iris”,5: 92, 129, specimen without abdomen; Brazil, Hofmuseum [Naturhistorisches Museum], Wien [NHMV].— Hampson, 1897. Proceedings of the Zoological Society of London, 1897 (1): 630.— Whalley & Heppner, 1995, Thyridoidea, in Becker et al. Checklist: Part 2, Hyblaeoidea—Pyraloidea—Tortricoidea, in Heppner (ed.). Atlas of Neotropical Lepidoptera , 3: 31.

Risama straminula ; Dalla Torre, 1914. Lepidopterorum Catalogus, 20: 42.— Gaede, 1936, in Seitz. Die Gross -Schmetterlinge des Amerikanischen Faunengebietes. Die amerikanischen Spinner und Schwärmer, 6: 1207.

Taxonomic history. Pagenstecher (1892) described the species from Brazil without illustration and without specifying the number of specimens. Transferred to Risama by Dalla Torre (1914) and returned to Siculodes by Whalley & Heppner (1995).

Type material. A syntype female, without the abdomen, was found in NHMV, with the author’s original labels matching the information provided in the original description. To give stability to the proposed name and ensure correct identification of the species, this female is herein designated as the lectotype, with the following labels: / Siculodes straminula Pagst. 92 / S. Paulo, Ypanema [Iperó] 1819-22 J. Natterer / N. c. Y. 10 / Type /, and the following labels will be added: / LECTOTYPE / LECTOTYPE Siculodes straminula Pagenstecher, 1892 , Queiroz-Santos, Casagrande & Mielke det. 2024 /.

Diagnosis. Siculodes straminula can be easily distinguished from S. avicula and all its congeners by wings overall yellow, as the tegulae, several irregular vertical brown lines, and outer margin of both wings marked in brown, better defined on ventral surface ( Figs 5A–B ). In addition, by combination of following characters: i) corpus bursae globose and well distinct from ductus bursae ( Fig. 22 ) and ii) signum rhomboid ( Fig. 32 ).

Redescription. Forewing: length—female 20.0–23.0 mm (n = 3); outer margin sinuous; retinaculum above R.

Hindwing: length—female 13.0–15.0 mm (n = 3); outer margin straight.

Male genitalia unknown.

Female genitalia ( Fig. 22 ): tergite VIII square in lateral view; posterior apophysis once longer than anterior apophysis; antrum slightly sclerotized, ductus bursae thirteen times longer than antrum, signum rhomboid ( Fig. 32 ); papilla analis wider than long.

Geographic distribution ( Fig. 44 ). BRAZIL: Mato Grosso do Sul: Rio Brilhante. São Paulo: Iperó, Floresta Nacional de Ipanema ; Luís Antônio, Fazenda Jataí.

Natural history. Immature stages and host plant unknown. Based on specimen label data, the species occurs in both Atlantic Forest and Cerrado, adults were caught in October.

Examined material (3 ♀).

BRAZIL: Mato Grosso do Sul: Rio Brilhante, 1 ♀, 23–27.X.1970, 600m, V. O. Becker leg., VOB 30206 ( VOB) . São Paulo: Iperó, Floresta Nacional de Ipanema , 1 ♀ (Holotype of Siculodes straminula ), 1819–1822, J. Natterer leg. ( NHMV) ; Luís Antônio, Fazenda Jataí , 1 ♀, 13–18.X.2001, 500m, 21°35’S 47°44’W, V. O. Becker leg., VOB 133255 ( VOB) .

Figures

FIGURE 44. Geographic distribution of Siculodes in central-southeastern Brazil.

FIGURES 4–6. Adults of Siculodes in dorsal (A) and ventral (B) views. Depositories of the specimens: 4A–B in OM (OM 8722). 5A–B in VOB (VOB 30206). 6A–B in DZUP (DZ 39.294). Scale bar = 1 cm.

FIGURES 21–23. Female genitalia of Siculodes in lateral view. 21. S. satellifera, holotype from Brazil, Minas Gerais, Araguari (MSFR). 22. S. straminula from Brazil, Mato Grosso do Sul, Rio Brilhante (VOB 30206). 23. S. subchalybaea stat. rev. from Brazil, Rio de Janeiro, Guapimirim (Barreira) (DZ 39.294). Scale bar = 1 mm.

FIGURES 28–33. Signa of Siculodes. 28. S. aurorula from Brazil, Rio de Janeiro, Petrópolis (Independência) (DZ 39.458). 29. S. avicula from Brazil, Rio de Janeiro, Guapimirim (Barreira) (NHMUK 010921100). 30. S. eurymenana from Brazil, Goiás, Campinaçu (Fazenda Barra Mansa) (DZ 39.304). 31. S. satellifera, holotype from Brazil, Minas Gerais,Araguari (MSFR). Scale bar = 1 mm. 32. S. straminula from Brazil, Mato Grosso do Sul, Rio Brilhante (VOB 30206). 33. S. subchalybaea stat. rev. from Brazil, Rio de Janeiro, Guapimirim (Barreira) (DZ 39.294). Scale bar = 0,5 mm.