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FIGURES 1–7 in New species and new combination in the genus Plistonax Thomson, 1864 (Cerambycidae, Lamiinae, Acanthoderini)

FIGURES 1–7. Plistonax albituberculatus Silva Júnior & Souza sp. nov., holotype male.1. Dorsal habitus; 2. Ventral habitus; 3. Lateral habitus; 4, Head, frontal view; 5. Prothorax, dorsal view; 6. Labels; 7. Elytra, detail of punctation and setae.

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FIGURES 8–9 in New species and new combination in the genus Plistonax Thomson, 1864 (Cerambycidae, Lamiinae, Acanthoderini)

FIGURES 8–9. Plistonax albituberculatus Silva Júnior & Souza sp. nov., paratype female. 8. Dorsal habitus; 9. Ventral habitus.

Fig. 16 in Phylogenetic approach redefines Plistonax (Coleoptera, Cerambycidae, Lamiinae) with new combinations and a new genus of flat-faced long-horned beetles

Fig. 16 Male terminalia: Plistonax inopinatus (a–f): a tegmen (ventral view); b endophallus (ventral view); c endophallus (lateral view); d ventral arc (ventral view); e tergite VII (dorsal view); f tergite VIII (dorsal view). P. rafaeli (g–l): g tegmen (ventral view); h endophallus (ventral view); i endophallus (lateral view); j ventral arc (ventral view); k tergite VII (dorsal view); l tergite VIII (dorsal view). Points and gray shapes represent sclerotized structures. Scale bars: 0.5 mm

Fig. 15 in Phylogenetic approach redefines Plistonax (Coleoptera, Cerambycidae, Lamiinae) with new combinations and a new genus of flat-faced long-horned beetles

Fig. 15 Plistonax inopinatus (a– g): a male's dorsal habitus; b male's ventral habitus; c female's dorsal habitus (paratype); d female's ventral habitus (paratype); e lateral habitus; f head (anterior view); g semierect seta of the elytral punctures, character state 28:0 (thick), micrograph (from left to right, base and apex; zoom 1500×). P. rafaeli (holotype) (h– l): h male's dorsal habitus; i male's ventral habitus; j lateral habitus; k head (anterior view); l semierect seta of the elytral punctures, character state 28:1 (slen- der), micrograph (from left to right, base and apex; zoom 900×). Scale bars: 5 mm, except figures f, k (1 mm), g, and l (25 μm)

Fig. 1 in Phylogenetic approach redefines Plistonax (Coleoptera, Cerambycidae, Lamiinae) with new combinations and a new genus of flat-faced long-horned beetles

Fig. 1 Character illustrations: a 1:0 male's gena with margin curved (anterior view, Plistonax inopinatus). b 1:1 male's gena with margin straight (anterior view, Aegomorphus jaspideus). c 3:0 scape slightly expanded to the mid-region (dorsal view, Ateralphus dejeani). d 3:1 scape strongly expanded in the mid-region (dorsal view, P. inopinatus). e 25:0 elytron with median-basal crest reaching no more than the half and 26:0 median-basal crest with anterior region straight (dorsal view, P. albituberculatus). f 25:1 elytron with median-basal crest reaching beyond the half and 26:1 median-basal crest with anterior region curved (dorsal view, P. inopinatus). g 19:0 prosternal process with lateral margin concave (ventral view, Steirastoma breve). h 19:1 prosternal process with lateral margin straight (ventral view, P. rafaeli). i 19:2 prosternal process with lateral margin convex (ventral view, P. inopinatus). Red arrows highlight the character states 1:0 and 1:1. Mbc, median-basal crest. Scale bars: 1 mm

Fig. 3 in Phylogenetic approach redefines Plistonax (Coleoptera, Cerambycidae, Lamiinae) with new combinations and a new genus of flat-faced long-horned beetles

Fig. 3 Character photographs: a 12:0 pronotum with punctures mainly in the anterior and posterior margins, rarely in the central region (dorsal view, Acanthoderes (Acanthoderes) daviesii). b 12:1 pronotum with punctures distributed uniformly, 13:0 pronotum with small punctures, 17:0 pronotum without median-longitudinal ridge (dorsal view, Ateralphus dejeani). c 13:1 pronotum with large punctures, 17:1 pronotum with medianlongitudinal ridge, and 18:1 pronotum with sparse white setae (dorsal view, Plistonax inopinatus). d 30:1 femora with sparse white setae and 32:1 male's protarsus with fringes of black setae (dorsal view, male of P. inopinatus). e 31:0 metatibia with darker stain near the apex in subapical position (lateral view, P. inopinatus). f 31:1 metatibia with darker stain near the apex in apical position (dorsal view, P. insolitus). Red arrow highlights the character state 17:1; blue arrows highlight the character states 31:0 and 31:1. Scale bars: 1 mm

Fig. 9 in Phylogenetic approach redefines Plistonax (Coleoptera, Cerambycidae, Lamiinae) with new combinations and a new genus of flat-faced long-horned beetles

Fig. 9 Male terminalia: Miguelmonneus insolitus (a–f): a tegmen (ventral view); b endophallus (ventral view); c endophallus (lateral view); d ventral arc (ventral view); e tergite VII (dorsal view); f tergite VIII (dorsal view). Plistonax albituberculatus (g–l): g tegmen (ventral view); h endophallus (ventral view); i endophallus (lateral view); j ventral arc (ventral view); k tergite VII (dorsal view); l tergite VIII (dorsal view). Points and gray shapes represent sclerotized structures. Ap, apophysis; Is, internal sac; Ml, median lobe; Ms, median strut; Par, paramere; Rp, ringed part. Scale bars: 0.5 mm

Fig. 8 in Phylogenetic approach redefines Plistonax (Coleoptera, Cerambycidae, Lamiinae) with new combinations and a new genus of flat-faced long-horned beetles

Fig. 8 Miguelmonneus insolitus (a–f): a male's dorsal habitus; b male's ventral habitus; c female's dorsal habitus; d female's ventral habitus; e lateral habitus; f head (anterior view). Acanthoderes (Acanthoderes) daviesii: g head (anterior view). Plistonax albolinitus (h–n): h male's dorsal habitus; i male's ventral habitus; j female's dorsal habitus; k female's ventral habitus; l lateral habitus; m head (anterior view); n semierect seta of the elytral punctures, character state 28:0 (thick), micrograph (from left to right, base and apex; zoom 1300×). Scale bars: 5 mm, except figures f, g, m (1 mm), and n (25 μm)

Fig. 11 in Phylogenetic approach redefines Plistonax (Coleoptera, Cerambycidae, Lamiinae) with new combinations and a new genus of flat-faced long-horned beetles

Fig. 11 Plistonax albolinitus: male terminalia (a–f): a tegmen (ventral view); b endophallus (ventral view); c endophallus (lateral view); d ventral arc (ventral view); e tergite VII (dorsal view); f tergite VIII (dorsal view). Mouthparts (g–j): g labrum (dorsal view); h Mandible (dorsal view); i Maxilla (ventral view); j Labium (ventral view). Points and gray shapes represent sclerotized structures; roman numeral represents the segments of the maxillary and labial palpi. Car, cardo; Gal, galea; Lac, lacinia; Lig, ligula; Prem, prementum; Sti, stipes. Scale bars: 0.5 mm

Fig. 10 in Phylogenetic approach redefines Plistonax (Coleoptera, Cerambycidae, Lamiinae) with new combinations and a new genus of flat-faced long-horned beetles

Fig. 10 Holotypes of some species of Plistonax: a Plistonax multipunctatus Thomson, 1864 (=P. albolinitus). b Plistonax albituberculatus Silva Júnior & Souza, 2019. c Acanthoderes albolinitus Bates, 1861 (=P. albolinitus). d Plistonax antonkozlovi Santos-Silva, Nascimento & Silva Júnior, 2020. e Acanthoderes ariasi Chemsak & Hovore, 2002 (=P. ariasi comb. nov.). f Acanthoderes bialbomaculata Zajciw, 1964 (=P. bialbomaculatus). g P. senecauxi

Fig. 14 in Phylogenetic approach redefines Plistonax (Coleoptera, Cerambycidae, Lamiinae) with new combinations and a new genus of flat-faced long-horned beetles

Fig. 14 Male terminalia: Plistonax ariasi (a–f): a tegmen (ventral view); b endophallus (ventral view); c endophallus (lateral view); d ventral arc (ventral view); e tergite VII (dorsal view); f tergite VIII (dorsal view). P. difficilis (g–l): g tegmen (ventral view); h endophallus (ventral view); i endophallus (lateral view); j ventral arc (ventral view); k tergite VII (dorsal view); l tergite VIII (dorsal view). Points and gray shapes represent sclerotized structures. Scale bars: 0.5 mm

Fig. 2 in Phylogenetic approach redefines Plistonax (Coleoptera, Cerambycidae, Lamiinae) with new combinations and a new genus of flat-faced long-horned beetles

Fig. 2 Character photographs: a 2:0 frons with small punctures (anterior view, Aegomorphus jaspideus). b 2:1 frons with large punctures (anterior view, A. travassosi). c 21:0 mesoventral process with antero-lateral tubercles slightly elevated (lateral view, Plistonax albolinitus). d 21:1 mesoventral process with antero-lateral tubercles very elevated (lateral view, Acanthoderes (Acanthoderes) daviesii). e 4:1 male's antennomeres VI–XI with tubercles in the inner surface and 11:1 male's antennomeres IX–XI with black setae in the inner surface (lateral view, male of P. albolinitus). f 6:1 antennomere III with darker stain near apex, 7:1 antennomere III with darker stain near base, 8:1 antennomere IV with darker stain near base, 9:0 antennomeres IV–XI with darker stain near apex in subapical position, and 10:1 antennomeres III– VII with erect setae in the inner surface (dorsal view, P. rafaeli). g 9:1 antennomeres IV–XI with darker stain near apex in apical position (dorsal view, P. insolitus). White dashed lines highlight the character states 2:0 and 2:1; blue arrows highlight the character states 6:1, 7:1, 8:1, 9:0, and 9:1; red arrows highlight the character state 10:1. Scale bars: 1 mm

Fig. 5 in Phylogenetic approach redefines Plistonax (Coleoptera, Cerambycidae, Lamiinae) with new combinations and a new genus of flat-faced long-horned beetles

Fig. 5 Character photographs: a 22:0 elytron with sparse punctures (dorsal view, Aegomorphus travassosi). b 23:0 elytron with punctures mainly in the anterior half and 24:0 elytron with small punctures (dorsal view, Acanthoderes (Acanthoderes) daviesii). c 22:1 elytron with clustered punctures, 23:1 elytron with punctures occurring in all surface, and 24:1 elytron with large punctures (dorsal view, Plistonax rafaeli). d 27:1 elytral punctures with internal semierect seta (dorsal view, P. rafaeli). e 29:1 elytral punctures with decumbent seta inserted in the antero-upper region. Scale bars: 1 mm, except figures d and e (0.5 mm)