Pachythone sumare Callaghan, 1999

Dolibaina, Diego Rodrigo, Dias, Fernando Maia Silva, Mielke, Olaf Hermann Hendrik & Casagrande, Mirna Martins, 2024, An overview of the Brazilian Atlantic Forest species of Pachythone Bates (Lepidoptera: Riodinidae), with the description of a new species and an updated checklist of Pachythonina, Zootaxa 5523 (1), pp. 35-48 : 41

Pachythone sumare Callaghan, 1999

( Figs 5–6 , 23 )

New record. A male from Joinville, Santa Catarina, Brazil, collected by Hebert Miers, without date of collection, deposited at the DZUP-OM, voucher code OM 67.518 ( Figs 5–6 ) .

Comments. Pachythone sumare was only known from its type locality on the hilltop of the Morro do Sumaré, Parque Nacional da Tijuca, Rio de Janeiro municipality, Rio de Janeiro state, Brazil ( Callaghan 1999). The new record extends the distribution of the species more than 700 km southwards ( Fig. 23 ). Additional records of P. sumare between Rio de Janeiro and Joinville are unknown, even though the area was and still is regularly sampled, including by a long-term inventory of butterflies conducted in the Baixada Santista region, São Paulo state ( Francini et al. 2011), a potential area of occurrence of P. sumare . No detailed information about the collection of the male specimen of P. sumare in Joinville is provided on the label; however, many specimens of other species from this locality collected by Mr. Miers were collected in a few known hilltops (e.g. the “Serrinha” hilltop). It is possible that the species was also collected when hilltoping, a typical behavior of P. sumare in its type locality ( Callaghan 1999), and for other species of the genus (DRD, pers. obs.; Gallard 2017). Further fieldwork in hilltops of low to mid-elevation in the Atlantic Forest along the southeastern and southern coast may help to unveil the geographical distribution of P. sumare and reveal its still unknown female.

Figures

FIGURE 23. Distribution map of the species of Pachythone endemic to the Brazilian Atlantic Forest.

FIGURES 1–6. Adults of Pachythone endemics from the Atlantic Forest of Brazil, in dorsal (left) and ventral (right) views. 1–4. P. gagarini, Dolibaina & Dias, sp. nov., 1–2, male holotype from Morro da Independência, Petrópolis, Rio de Janeiro; 3–4, female allotype, same locality as the holotype. 5–6. P. sumare, male from Joinville, Santa Catarina. All specimens are deposited at the DZUP. Scale bar: 1 cm.