Melanastera pleromatos Serbina & Malenovský & Queiroz & Burckhardt 2025

37 Melanastera pleromatos sp. nov. (Figs 11H, 18B, 30A–F) Type material. Holotype ♂: Brazil: RIO GRANDE DO SUL: Cambará do Sul, Parque Nacional de Aparados da Serra, Itaimbezinho, park headquarters, S29.1583, W50.0800, 910 m, 25.i.2016, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #187(3) (UFPR; dry). Paratypes. Brazil: PARANÁ: 2 ♂, 1 ♀, Antonina, Usina Parigot de Souza, S25.2557, W48.7787, 720 m, 19.vii.2017, Pleroma raddianum (I. Malenovský) #250 (MMBC; 70% ethanol); 5 ♂, 7 ♀, 1 immature, same but Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #250(4) (NHMB; 70% ethanol; NMB-PSYLL0007500); 2 ♀, same but (D. Burckhardt & D.L. Queiroz) #251 (NHMB; 70% ethanol; NMB-PSYLL0007501); 1 ♂, 8 ♀, Bocaiuva do Sul, BR- 476 km 86, S25.1283/1900, W49.085/1283, 900–1080 m, 18.iv.2013, Pleroma sellowianum, remnants of Atlantic forest along plantations (D. Burckhardt & D.L. Queiroz) #104(6) (NHMB; 70% ethanol; NMB-PSYLL0007482); 5 ♂, 6 ♀, same but BR- 476 km 72, S25.0783, W49.0916, 1140 m, 21.iv.2013, Pleroma sellowianum (D. Burckhardt & D.L. Queiroz) #108(1) (NHMB; 70% ethanol; NMB-PSYLL0007487); 3 ♂, 1 ♀, Cerro Azul, BR-476 km 69, S25.0685, W49.0877, 1080 m, 18–19.iv.2013 (D. Burckhardt & D.L. Queiroz) #106(6) (NHMB; slide, 70% ethanol; NMB-PSYLL0007484, NMB-PSYLL0007539); 1 ♀, 1 immature, Colombo, Campus da Embrapa, S24.8526, W48.7358, 900 m, 12.ii.2014 (D.L. Queiroz) #591 (NHMB; 70% ethanol; NMB-PSYLL0007504); 1 ♂, 1 ♀, 1 immature, same but (D.L. Queiroz) #595 (NHMB; 70% ethanol; NMB-PSYLL0007505); 5 ♂, 15 ♀, 5 immatures, same but (D.L. Queiroz) #596 (NHMB; 70% ethanol; NMB-PSYLL0007506); 8 ♂, 12 ♀, 20 immatures, Curitiba, Parque Barigui, S25.4266, W49.3133, 910m, 9.ii.2016, Pleroma raddianum (D.Burckhardt & D.L. Queiroz) #196(9) (NHMB; slide, 70% ethanol; NMB-PSYLL0007498, NMB-PSYLL0007535, NMB-PSYLL0007536); 1 ♂, 4 ♀, same but Pedreira Paulo, S25.3850, W49.2783, 950 m, 24.x.2012, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #47(3) (NHMB; 70% ethanol; NMB-PSYLL0007476); 1 ♂, same but Parque Barreirinha, S25.3629, W49.2612, 1.xii.2012 (D. Burckhardt & D.L. Queiroz) #82 (NHMB; 70% ethanol; NMB-PSYLL0007486); 6 ♂, 9 ♀, same but Parque Barigui, S254269, W 493134, 910 m, 4.xii.2012, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #85(6) (NHMB; 70% ethanol; NMB-PSYLL0007479); 4 ♂, 5 ♀, 2 immatures, same but Bosque Zaninelli, S254269, W 493134, 950 m, 11.ii.2013, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #91(2) (NHMB; 70% ethanol; NMB-PSYLL0007480); 2 ♂, 4 ♀, same but Jardim Botânico, S25.4416, W49.2383, 910 m, 2.iv.2013, Tibouchina sp. (D. Burckhardt & D.L. Queiroz) #97(3) (NHMB; 70% ethanol; NMB-PSYLL0007481); 9 ♂, 8 ♀, Matinhos, Rodovia Elisio Pereira Alves Filho, S25.7100 /7916, W48.5616 /5766, 0–10 m, 29.xi.2012, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #81(2) (NHMB; 70% ethanol; NMB-PSYLL0007477); 1 ♀, Morretes, Recanto Engenheiro Lacerda PR-410, S25.3333 /3337, W48.9009 /9015, 780– 870 m, 13.ix.2011, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #2(1) (NHMB; 70% ethanol; NMB-PSYLL0007414); 13 ♂, 23 ♀, 3 immatures, 4 skins, same but Estação Marumbi, S25.4484 /4492, W48.8901 /8915, 230– 240 m, 14.ix.2011, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #5(3) (MMBC, NHMB; dry, slide, 70% ethanol; NMB-PSYLL0007471, NMB-PSYLL0007472, NMB-PSYLL0007526 [LSMeltibo-6], NMB-PSYLL0007529 [LSMeltibo-6], NMB-PSYLL0007530, NMB-PSYLL0007485 [voucher 5(4)]); 5 ♂, 4 ♀, same but Floresta Marumbi, trail to hotel, S25.4459, W48.8873, 170 m, 14.ix.2011, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #6(2) (NHMB; 70% ethanol; NMB-PSYLL0007473); 5 ♂, 4 ♀, 1 immature, same but BR-277, Cachoeira, S25.5748, W48.8279, 700 m, 28.xi.2012, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #80(2) (NHMB; 70% ethanol; NMB-PSYLL0007478); 1 adult, same but PR-410, Recanto Rio Cascata, S25.3340, W48.8984, 800 m, 26.vii.2017, Pleroma raddianum, Atlantic forest (L. Serbina & I. Malenovský) #DIC1 (NHMB; slide, NMB-PSYLL0007531 [voucher 6-1]); 1 ♀, same but (L. Serbina & I. Malenovský) # DIC2 +3 (MMBC; 70% ethanol); 1 ♀, same but (L. Serbina & I. Malenovský) # DIC3 (MMBC; 70% ethanol); 8 ♂, 26 ♀, Piraquara, Parque Estadual do Marumbi, 25.1566/1600, W48.9745/9916, 890– 1170 m, 23–24.iv.2013, Pleroma sellowianum (D. Burckhardt & D.L. Queiroz) #109(1) (NHMB; 70% ethanol; NMB-PSYLL0007497); 12 ♂, 4 ♀, same but Marumbi, Estação Carvalho, S27.4727, W48.3781, 1000 m, 20.xi.2013, Miconia sellowiana (D.L. Queiroz) #599(4) (NHMB; 70% ethanol; NMB-PSYLL0007503, NMB-PSYLL0007532 [voucher 5-9]); 1 ♀, Piraquara, Road to Marumbi, S25.4962, W48.9817, 990 m, 21.xi.2013 (D.L. Queiroz) #600 (NHMB; 70% ethanol; NMB-PSYLL0007507); 7 ♂, 10 ♀, 4 immatures, 1 skin, same but Marumbi, Road to Estação Carvalho, S25.4962, W48.9817, 990 m, 11.ii.2015 (D.L. Queiroz) #668 (NHMB; 70% ethanol; NMB-PSYLL0006044); 5 ♂, 4 ♀, same but S27.4727, W48.3781, 1000 m, 11.ii.2015 (D.L. Queiroz) #670 (NHMB; 70% ethanol; NMB-PSYLL0006050); 1 ♂, 1 ♀, same but Marumbi, Estação Carvalho, S27.4715, W48.3799, 1050 m, 11.ii.2015 (D.L. Queiroz) #671 (NHMB; 70% ethanol; NMB-PSYLL0006040 [male voucher]); 6 ♂, 7 ♀, 1 immature, Piraquara, BR- 277 km 50–55, S25.5733, W48.9900, 940 m, 28.xi.2012, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #79(4) (NHMB; 70% ethanol; NMB-PSYLL0007474); 1 ♂, 8 ♀, Tibagi, Parque Estadual Guartelá, S24.5623 /5666, W50.2589, 920–950 m, 23–25.vi.2015, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #171(2) (NHMB; 70% ethanol; NMB-PSYLL0007489); 4 ♂, 7 ♀, Tibagi, Parque Estadual Guartelá, S24.5683, W50.2553, 940 m, 10–12.vii.2017, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #245(5) (NHMB; 70% ethanol; NMB-PSYLL0007499); 3 ♂, 5 ♀, 1 skin, Tibagi, Parque Estadual Guartelá, S24.5683, W50.2553, 940 m, 10.vii.2017, Cerrado vegetation (L. Serbina) #DIC4 (MMBC; 70% ethanol); 2 ♂, 5 ♀, Tunas do Paraná, BR- 476 km 60, S25.0083, W49.0800, 900 m, 18.iv.2013, Miconia sp. (D. Burckhardt & D.L. Queiroz) #105(2) (NHMB; slide, 70% ethanol; NMB-PSYLL0007483, NMB-PSYLL0007537); 9 ♂, 12 ♀, 6 immatures, 2 skins, Tunas do Paraná, Parque das Lauraceas, S25.0688, W49.0888, 890 m, 8.viii.2013 (D.L. Queiroz) #556 (NHMB; slide, 70% ethanol; NMB-PSYLL0007502, NMB-PSYLL0007525 [voucher 6-10]); 2 ♂, 5 ♀, Ventania, road BR-153, around 10 km from Ventania, 241,783, W50.2166, 870 m, 18.ix.2014, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #149(3) (NHMB; 70% ethanol; NMB-PSYLL0007488); 3 ♂, 4 ♀, 40 immatures, 1 skin, Morretes, PR-410, Recanto Rio Cascata, S25.3340, W48.8984, 800 m, 26.vii.2017, Pleroma raddianum, Atlantic forest (L. Serbina & I. Malenovský) #DIC2, 1 (MMBC; 70% ethanol).— RIO GRANDE DO SUL: 6 ♂, 16 ♀, 10 immatures, 1 skin, Passo Fundo, S28.2288, W52.4061, 670 m, 7.ix.2012, Pleroma sellowianum (A.L. Marsaro Jr.) (NHMB; 70% ethanol; NMB-PSYLL0007510); 9 ♂, 9 ♀, 15 immatures, same but S28.2288, W52.4061, 670 m, 14.xi.2012 (A.L. Marsaro Jr.) (NHMB; 70% ethanol; NMB-PSYLL0007509); 18 ♂, 27 ♀, 5 immatures, Cambará do Sul, Parque Nacional de Aparados da Serra, Itaimbezinho, park headquarters, S29.1583, W50.0800, 910 m, 25.i.2016, Pleroma raddianum (D. Burckhardt & D.L. Queiroz) #187(3) (BMNH, MHNG, MMBC, NHMB, UFPR, USNM; dry, slide, 70% ethanol; NMB-PSYLL0007490–NMB-PSYLL0007496, NMB-PSYLL0007475, NMB-PSYLL0007560, NMB-PSYLL0007527 [voucher 6-3], NMB-PSYLL0007528 [voucher 6- 4], NMB-PSYLL0007533 [voucher 6r-2], NMB-PSYLL0007534 [voucher 6r-1], NMB-PSYLL0007538).— SANTA CATARINA: 1 ♂, Florianópolis, Costão do Santinho, S11.8339, W55.4996, 170 m, 16.ii.2015 (D.L. Queiroz) #672 (NHMB; 70% ethanol; NMB-PSYLL0007508). Description. Adult. Coloration. Head and clypeus yellow with small dark dots on the vertex. Antenna whitish, apices of segments 4–9 and entire segment 10 dark brown. Thorax light orange brown, with scattered dark brown dots; mesopraescutum with two orange patches at the fore margin; mesoscutum with four broad and, in the middle, one narrow orange longitudinal stripes, margined by dark brown dots. Forewing (Fig. 18B) light amber-coloured with sparse, irregular brown dots; base and apex of pterostigma and apices of veins Rs, M 1+2, M 3+4, Cu 1a and Cu 1b brown. Legs yellow, pro- and mesofemora with two transverse brown bands. Abdomens and terminalia yellow. Structure. Forewing (Fig. 18B) oblong-oval, widest in the middle, unevenly rounded apically; wing apex situated in cell r 2 near apex of M 1+2; C+Sc distinctly curved in distal third; pterostigma about as wide as r 1 cell in the middle, weakly widening to the middle; Rs almost straight in basal two thirds, obliquely curved to fore margin apically; M longer than M 1+2 and M 3+4; Cu 1a relatively straight in basal two thirds, ending slightly proximal of M fork; surface spinules present in all cells, leaving narrow spinule-free stripes along the veins, forming hexagons of a double row of spinules, spinules absent from base of cell c+sc. Hindwing with 2 + 3–4 grouped costal setae. Metatibia short, bearing a posteriorly open crown of 8–9 ungrouped apical spurs. Terminalia (Fig. 30A–F). Male. Proctiger tubular, weakly produced posteriorly; densely covered with short setae in apical two thirds. Subgenital plate irregularly ovoid; dorsal margin strongly curved in distal third; posterior margin irregularly convex; with densely spaced long setae. Paramere, in lateral view, irregularly lanceolate; apex, in lateral view, blunt, directed upwards and slightly anteriad, in dorsal view, paramere broad subapically, apex sclerotised and pointed, directed inwards; outer face with long setae mostly in apical half; inner face with dense moderately long setae; posterior margin with longer setae. Proximal segment of aedeagus with apical part moderately subdivided. Distal segment of aedeagus almost straight in basal half; ventral process situated slightly distad of the middle of the segment length, simple, lacking lateral lobes, in lateral view, ventral process narrow, lamellar, in dorsal view, ventral process narrower than apical