Bia decaerulea pallida Casagrande & Penz

Penz, Carla M., Casagrande, Mirna M., Devries, Phil & Simonsen, Thomas J., 2017, Documenting diversity in the Amazonian butterfly genus Bia (Lepidoptera, Nymphalidae), Zootaxa 4258 (3), pp. 201-237 : 213-214

Bia decaerulea pallida Casagrande & Penz , NEW SSP.

( Figs 4 g–h, 10f, 12)

Diagnostic description. Defined by the following combination of characters: (1) MF DFW white apical ocelli medium-small (larger in F). (2) MF DFW orange band somewhat diffuse, somewhat narrow (narrower than decaerulea decaerulea ); orange scales somewhat extended proximally along veins. (3) M DFW iridescent band generally absent, but the location of the band might be visible under the scope when the specimen is tilted (a sheen is visible near tornus), a faint blue color is sometimes present. F DFW blue iridescence somewhat narrow and subdued (can be very faint); diffuse anteriorly. (4) M DFW androconial scales on the CuA-CuA1-CuA2 intersection dark brown, matching scale color of surrounding area and intermingled with orange scales. (5) M DHW discal androconial pad pale brown, lighter than associated hairpencil. (6) M DHW discal hairpencil brown, darker in color than discal androconial pad. (7) F VFW ripple pattern less dense than that of M, with the VFW postmedial area showing a more predominantly yellow color.

Etymology. The name pallida alludes to the lighter color of the discal androconial pad as compared to the nominal subspecies and decaerulea cayana .

Type material. Holotype M ( Fig. 4 g), deposited in the DZUP collection, four labels separated by // and transcribed verbatim: HOLOTYPUS // BR. Amazonas, Barcelos, Rio Padauari, Com.[unidade] Acuquaia , 08-10- VI-2010, 0°13’36”N 63°59’20”W, Mielke & Casagrande leg. // DZ 20.713 // Holotypus Bia decaerulea pallida Casagrande & Penz, 2017 . Paratypes are listed in Appendix, and Fig. 4 h shows a paratype F.

Distribution and examined specimens. Fig. 12 and Appendix.

Remarks. The dorsal hind wing discal androconial pad of one specimen from Brazil, Amazonas, Tonantins ( CMNH) is darker than that of specimens from those collected in the nearby locality São Paulo de Olivença. Male specimens from Brazil, Amazonas, Barcelos and São Gabriel da Cachoeira have a lighter discal androconial pad than those of other localities ( DZUP) . Photographs of specimens from Colombia, La Pedrera, Vaupés, San Jose del Guaviare, and Putumayo provided by Gonzalo Andrade match the description above (see Appendix for complete locality data).

Figures

FIGURE 4. Adults in dorsal and ventral views. Taxon names appear below each set. Bia decaerulea decaerulea: a, male, Brazil, Amazonas, Manacapuru (CMNH); b, female, same locality (CMNH). Bia decaerulea cayana, Simonsen & Penz, new ssp.: c, male holotype, French Guiana, Mana River (CMNH); d, male paratype, same locality (CMNH); e, male paratype, same locality (CMNH); f, female paratype, French Guiana, Oyapok River (CMNH). Bia decaerulea pallida Casagrande & Penz, new ssp: g, male holotype, Brazil, Amazonas, Barcelos, Rio Padauari (DZUP); h, female paratype, Brazil, Amazonas, Barcelos, Rio Padauari (DZUP).

FIGURE 12. Map showing collection localities of Bia species and subspecies (see Appendix). Some close localities are represented by one single dot. Dubious label data, localities that could not be accurately identified or were incomplete (e. g., Brazil, Pará) were not placed on map.