FIGURE 18 in A new species of Metron Godman, 1900 (Lepidoptera, Hesperiidae) from the western Amazon, with a unique hindwing color pattern in Hesperiina, its phylogenetic placement, and an illustrated key for the genus

FIGURE 18. Illustrated key for species of Metron in both sexes. Abbreviation: VHW = ventral hind wing. Notes: a) the female of Metron h. hypochlora (Draudt, 1923) and M. hypochlora tomba Evans, 1955 remain unknown or most probably are unrecognized; b) part of the diagnostic characters indicated may not be positively verified in old or damaged/descaled specimens; c) the illustrated key reflects the more suitable arrangements of diagnostic characters, which does not necessarily correspond to the phylogenetic hypothesis for the genus. Specimens illustrated: Metron mentor sp. nov.: ♂, holotype (OM46.697); ♀, allotype (OM70.959). Metron c. chrysogastra: ♂, El Rodeo, Colón, Costa Rica (OM40.363); ♀, Orotina, Costa Rica (OM28.738). Metron chrysograstra gades Evans, 1955: ♂, Rio El Afluente, Rioja, San Martin, Peru (OM81.870); ♀, Cochabamba, Bolivia (OM14.865). Metron chrysogastra hypodesma (Plötz, 1882): ♂ (OM49.656) and ♀ (OM49.688), Cananéia, São Paulo, Brazil. Metron noctis (Kaye, 1914): ♂, San Inacio, Misiones, Argentina (OM41.416); ♀, Tinalândia, Alluriquin, Pichincha, Ecuador (OM52.689). Metron voranus (Mabille, 1891): (without band) ♂, Urupema, Santa Catarina, Brazil (DZ62.559); ♀, Tibagi, Paraná, Brazil (DZ62.560); (with band, ventral only): ♂, P.N. Itatiaia, Resende, Rio de Janeiro, Brazil (DZ62.561); ♀, Barreira de Piquete, São Paulo, Brazil (DZ62.562). Metron hypochlora hypochlora (Draudt, 1923): ♂, Salvación, Madre de Díos, Peru (OM76.160). Metron hypochlora tomba Evans, 1955: ♂, Cáceres, Mato Grosso, Brazil (DZ62.299). Metron fasciata (Möschler, 1877): ♂, Imperatriz, Maranhão, Brazil (DZ62.558); ♀, Soure, Ilha de Marajó, Pará, Brazil (DZ62.557). Metron oropa (Hewitson, 1877): ♂, Alto da Serra, Morretes, Paraná, Brazil (OM22.038); ♀, Tirol das Torres, Curitiba, Paraná, Brazil (OM65.552). Metron zimra (Hewitson, 1877): ♂, Rio Pequeno, Antonina, Paraná, Brazil (OM60.921); ♀, Parati, Rio de Janeiro, Brazil (OM91.734).