Revision of Janeirona Distant, 1911 (Hemiptera: Pentatomidae: Ochlerini) with the description of four new species from Brazil Author Sampaio, Vinícius Gomes 0000-0002-1392-8444 sampaiovgs@gmail.com Author Oliveira, Giulia Valadão De 0009-0001-2590-6154 giuliavoliveira@gmail.com Author Campos, Luiz Alexandre 0000-0001-5414-8746 Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Zoologia, Av. Bento Gonçalves 9500, 91501 - 970 Porto Alegre, RS, Brazil. luiz.campos@ufrgs.br text Zootaxa 2024 2024-08-27 5497 4 451 495 http://dx.doi.org/10.11646/zootaxa.5497.4.1 journal article 10.11646/zootaxa.5497.4.1 1175-5326 13618999 173E2990-D5C9-4AA5-8185-988DC64F6DCD Janeirona bergi ( Kormilev, 1956 ) ( Figs. 15–20 , 42 ) Serdia bergi Kormilev, 1956: 4 . Zimmeria bergi : Ruckes 1958: 20 (syn.). Zimmerana bergi : Ruckes 1962: 234 (syn.). Janeirona bergi : Rolston & McDonald 1979: 189 (syn.); Link & Grazia 1983: 124 ; 1987: 119 ; Coscarón 2015: 83 ; Roell & Campos 2019: 1138–1140 . Types examined: ARGENTINA , Misiones ; Serdia bergi Kormilev, 1956 ; female holotype ( Fig. 15 ). Deposited in: MLPA. Labels: Serdia / bergi / Kormilev 1953 / Museo Argentino de Ciencias Naturales // HOLOTYPUS // Misiones // Typus // Serdia / maxima / 1900 Berg // 1424 // MUSEO DE LA PLATA / he-10707. FIGURE 15. Serdia bergi Kormilev, 1956 , female holotype, A, dorsal; B, ventral; C, lateral; D, genital plates; E, labels. Scale bars A–C = 10 mm; D = 1 mm.© by Museo de La Plata, La Plata, Argentina, Cecilia Melo, 2023; published with permission. Other material examined: BRAZIL , Rio de Janeiro: ( Itatiaia , -22.4911 , -44.7197 ), male, I-1972 , Dirings ( MZSP ) ; ( Itatiaia , Maromba , - 22.3312 , -44.6202 ), female, 29-XII-1952 , Leite , Seabra & Zikan ( UFRG ) ; ( Itatiaia , Maromba , -22.3312 , -44.6202 ), male, 16-I-1953 , ( UFRG ) ; São Paulo: 2 males , 18-IX-1916 , S. Bernardo ( MRCN ) ; (Espírito Santo do Pinhal , - 22.1891 , -46.7796 ), female, 30-XII-1939 ( UFRG ) ; (Espírito Santo do Pinhal , -22.1891 , -46.7796 ), female, 12-II-1940 ( UFRG ) ; ( Piracicaba , -22.7144 , -47.7042 ), female, 3-X-1967 , E. B. F. ( UFRG ) ; ( Salesópolis , Estação Biológica de Boraceia , -23.3912 , -45.5321 ), female, 19-21- XI-2012 , B. Genevicius , R. Carrenho & F. Lanza ( MZSP ) ; (São Paulo, -23.6814 , -46.9249 ), female, 29-X-1974 , M. A. S. Massei ( UFRG ) ; (São Paulo, Serra da Cantareira , - 23.4141 , -46.6175 ), female, XI-1940 , L. Guimarães ( MZSP ) ; Paraná: ( Rio Negro , -26.0923 , -49.8051 ), female, I- 1924 ( UFRG ) ; ( Rolândia , -23.3166 , -51.4099 ), female, XII- 1953 , Dirings ( MZSP ) ; ( Quedas do Iguaçu , Salto Osório Damp , -25.5351 , -53.0092 ), female, 23-I-1974 , J. G. Vieira ( UFRG ) ; Santa Catarina: ( Criciúma , -28.7278 , -49.5323 ), male, 30-X- 2007 , F. M. Bianchi ( UFRG ) ; ( Criciúma , -28.7278 , -49.5323 ), female, 17-XII- 2011 , F. M. Bianchi ( UFRG ) ; ( Catanduvas , -27.0663 , -51.6783 ), 3 females , 20-XII-1973 , H. A. Gastal ( UFRG ) ; ( Corupá , -26.4248 , -49.2868 ), male, XI-1957 , A. Maller ( MNRJ ) ; ( Itapema , -27.0930 , -48.6401 ), female, 30-XII-2003 , J. Grazia ( UFRG ) ; ( Nova Teutônia , -27.1640 , -52.4334 ), female, 5-XI-1960 , Fritz Plaumann ( AMNH ) ; ( Florianópolis , São João do Rio Vermelho , -27.4866 , -48.4168 ), female, I-1960 , Dirings ( MZSP ) ; ( Timbó , -26.8290 , -49.2752 ), female, X-1958 , Dirings ( MZSP ) ; ( Joinville , -26.2634 , -48.9628 ), female, III-1958 , Dirings ( MZSP ) ; Rio Grande do Sul: ( Torres , -29.3420 , -49.7530 ), 2 males , 15-XI-1974 , Q. Lise ( MRCN ) ; ( Monte Alegre dos Campos , -28.6850 , -50.7880 ), male, 24-30-XI-1942 , Zoppel & D'amico ( UFRG ) ; ( Monte Alegre dos Campos , -28.6850 , -50.7880 ), female, 24-30-XI-1942 , Zoppel & D'amico ( UFRG ) ; ( Santa Maria , -29.7198 , -53.8692 ), female, 20-XII-1971 , Link ( UFRG ) ; ( São Leopoldo , -29.7509 , -51.2255 ), female, Pe. Buck ( UFRG ) ; ( Tramandaí , -30.0285 , -50.2403 ), female, 31-I-1974 , Pe. Buck ( UFRG ) . ARGENTINA , Misiones: ( San Ignacio , -27.2579 , -55.5551 ), male, L. Bade ( MACN ) . Records retrieved from iNaturalist BRAZIL , São Paulo: ( Mairiporã , -23.275858 , -46.474771 , photo by Paloma Martins) . Paraná: ( Ponta Grossa , -25.094423 , -50.102407 , photo by Cristiane Colodel) ; ( Campina Grande do Sul , -25.334678 , -49.115917 , photo by Maristela Zamoner) ; (Pato Branco, -26.227778 , -52.671389 , photo by João Ortolan) . Santa Catarina: ( Mafra , -26.117011 , -49.804882 , photo by Rômulo Cenci) ; (Concórdia, -27.220719 , -51.956493 , photo by Frederico Acaz Sonntag) ; (Urubici, -28.007117 , -49.589468 , photo by Kahio Tibério Mazon) . Diagnosis. Body length ranging from 14.3 mm to 17.9 mm . Antennomeres I slightly surpassing the mandibular plates; labium not surpassing the middle of metasternum; metasternum flat, elevated. Pygophore lateral margins subparallel anterior to the posterolateral angles; apices of posterolateral angles truncated in dorsal view. FIGURE 16. Janeirona bergi ( Kormilev, 1956 ) , female, A, dorsal; B, ventral; C, lateral. Scale bar = 10 mm. FIGURE 17. Janeirona bergi ( Kormilev, 1956 ) , A, head and pronotum in dorsal view; B, labiomeres I and II; C, external scent efferent system. Scale bars: A = 5 mm; B = 1 mm; C = 2 mm. Description. Body dark brown, almost black, with legs and labium ocher ( Fig. 16 ). Head 1.5 times wider than long; maximum head width across the mandibular plates subequal to half the head width across the eyes; posterior margins of the eyes forming an angle of less than 45º with the longitudinal body axis; each mandibular plate wider than clypeus, with the outer margin convex and the inner margin concave anterior to clypeus, apex rounded; antennomeres I slightly surpassing the mandibular plates, proportion of antennomeres: I ≅ II<III<IV<V ( Fig. 17 , A); labium not surpassing the middle of metasternum ( Fig. 16 , B), without intercalary segment ( Fig. 17 , B), proportion of labiomeres: I<II>III>IV. Thorax. Pronotum twice as wide as long; anterior and lateral margins shallowly concave ( Fig. 17 , A). Lateral half of the corial posterior margin concave, apical angle attaining the middle of connexival segment VI ( Fig. 16 , A). Metasternum flat, elevated. Abdomen. Medial portion of urosternites concolor with the lateral portion, sparsely and shallowly punctured ( Fig. 16 , B); trichobothria lateral to spiracles. Male. Measurements (n=10): Total length (n=7) 15.20 ± 0.60 (16.70–15.00); width of abdomen 7.65 ± 0.29 (8.00–7.20); head length 2.00 ± 0.20 (2.30–1,70); width 2.90 ± 0.09 (3.00–2.70); pronotum length 3.15 ± 0.06 (3.20–3.00); width 7.40 ± 0.27 (7.80–7.00); scutellum length 6.00 ± 0.14 (6.30–5.90); width 4.50 ± 0.14 (4.80– 4.30); length of antennomeres: I 0.90 ± 0.06 (1.00–0.80), II (n=9) 1.00 ± 0.09 (1.10–0.80), III (n=9) 1.60 ± 0.37 (2.50–1.20), IV (n=4) 2.05 ± 0.14 (2.10–1.80), V (n=2) 2.45 ± 0.21 (2.60–2.30); length of labiomeres: I 0.85 ± 0.11 (1.10–0.70), Int. 0.10 ± 0.05 (0.20–0.10), II 1.50 ± 0.11 (1.70–1.40), III 1.10 ± 0.18 (1.40–0.90), IV 0.85 ± 0.08 (1.00–0.80). FIGURE 18. Janeirona bergi ( Kormilev, 1956 ) , male, pygophore, A, dorsal; B, dorsolateral; C, posterior; D, lateral; E, ventral; F, segment X. Scale bars A–E = 2 mm; F = 1 mm. Genitalia ( Figs. 18 , 19 ). Pygophore. Lateral margins straight anterior to the posterolateral angles ( Fig. 18. A, E ); dorsal wall length on midline subequal to the length of segment X; dorsal rim concave over segment X ( Fig. 18. A ); posterolateral angles truncated, dorsally excavated with lateral margins convex, and posteriorly exceeding the segment X for less than the latter’s length ( Fig. 18. A, B ); ventral rim u-shaped, lined with setae denser at apex ( Fig. 18. E ). Segment X with dense setae along the posterior margin; apex projected as a small beak ( Fig. 18 , A–C, F). Parameres laterally sinuous; dish-shaped process with an apical tuft of thin setae; apical branches of the parameres’ head short and diverging, external branch slightly longer than the internal ( Fig. 19 , D–F). Phallus. Proximal thecal width 1/4 of the maximum thecal width in lateral view ( Fig. 19 , A); apical lobes of the dorsal process of endosoma weakly dilated and rounded, margins of the emargination juxtaposed ( Fig. 19 , A–C). Female. Measurements (n=23): Total length (n=18) 15.80 ± 0.83 (17.90–14.30); width of abdomen (n=19) 7.50 ± 0.38 (8.30–7.10); head length 1.90 ± 0.15 (2.20–1.60); width 2.80 ± 0.17 (3.10–2.40); pronotum length 3.10 ± 0.14 (3.40–2.80); width 7.10 ± 0.32 (8.10–6.70); scutellum length 6.00 ± 0.23 (6.50–5.50); width 4.50 ± 0.19 (5.10–4.20); length of antennomeres: I (n=21) 0.90 ± 0.07 (0.80–1.10), II (n=18) 0.90 ± 0.07 (0.80–1.00), III (n=17) 1.50 ± 0.15 (2.00–1.30), IV (n=7) 1.70 ± 0.28 (2.00–1.20), V (n=5) 2.40 ± 0.13 (2.50–2.20); length of labiomeres: I 0.90 ± 0.09 (1.10–0.70), Int. 0.20 ± 0.04 (0.20–0.10), II 1.40 ± 0.13 (1.80–1.30), III (n=22) 1.10 ± 0.10 (1.40–1.00), IV (n=22) 0.90 ± 0.09 (0.70–1.00). Genitalia. ( Fig. 20 ). Valvifers VIII longer than wide, lateral angles as posteriorly projected as the sutural angles, posterior margins slightly convex ( Fig. 20 , A, vfVIII); laterotergites VIII wider than long, posterior margins subrectilinear ( Fig. 20 , A, laVIII); laterotergites IX with lateral margins straight, mesial margins convex, and rounded apices, not surpassing mediotergite VIII ( Fig. 20 , A, laIX). Thickening of the vaginal intima subrectangular in ventral view; ring sclerites oval in ventral view, twice wider than the thickening of the vaginal intima ( Fig. 20 , B); proximal portion of ductus receptaculi coiled, more than twice longer than the vesicular area ( Fig. 20 , B, drp); median duct of vesicular area uniformly wide through its length; distal portion of ductus receptaculi dilated towards the pars intermedialis, about twice longer than pars intermedialis and capsula seminalis taken together ( Fig. 20 , B, drd); pars intermedialis twice longer than capsula seminalis, this with three digitiform projections ( Fig. 20 , B, pi, cs). Comments. Similar to Janeirona insignis and Janeirona vianai . Differs from J. insignis by the maximum head width across the mandibular plates subequal to half the head width across the eyes, mandibular plates with rounded apex and the inner margin concave anterior to clypeus, and antennomeres I not dilated, slightly surpassing the mandibular plates. Differs from J. vianai by the larger size, antennomeres I surpassing the mandibular plates, metasternum flat, and pygophore posterolateral angles with truncated apices. Distribution: Argentina ( Misiones ), Brazil ( Rio de Janeiro , São Paulo , Paraná , Santa Catarina , and Rio Grande do Sul ).