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 costalimai ( Pirán, 1962 ) ( Figs. 21–25 , 42 ) Zimmeria costalimai Pirán, 1962 . Zimmerana costalimai : Ruckes 1962: 234 (syn.). Janeirona costalimai : Rolston & McDonald 1979: 189 (syn.); Bachmann 1999: 208 . Janeirona asaroana Brailovsky, 1988 (new synonym) . Types examined: BOLIVIA , Beni (Riberalta, -11.0179 , -66.0573 ); Zimmeria costalimai Pirán, 1962 ; female holotype ( Fig. 21 ). Deposited in: MACN. Labels: Riberalta / Beni - Bolivia / II - 956. N. Fritz // HOLOTYPUS // Zimmeria / costalimai Pirán 1962 // Janeirona costalimai ( Pirán, 1962 ) J. Grazia det. 1986. BRAZIL , Acre ( Rio Branco , -9.9861 , -67.9134 ): Zimmeria costalimai Pirán, 1962 ; male allotype ( Fig. 22 ) . Deposited in: MACN. Labels: Rio Branco / Acre / Exp. Dpt. Zool. / IX-51 [1951] // Zimmeria / costa-limai / 1962 / Det. A.A. Pirán // ALLOTYPUS . FIGURE 21. Zimmeria costalimai Pirán, 1962 , female holotype, A, dorsal; B, ventral; C, lateral; D, posterior; E, labels. Scale bars: A–C = 10 mm, D = 5 mm. © by Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Buenos Aires, Argentina, Gastón Zubarán, 2024; published with permission. Other material examined: BRAZIL , Acre : (Sena Madureira, -9.0721 , -68.6872 ), female, X-1952 , Azicourt ( MNRJ ) . Records retrieved from iNaturalist BRAZIL , Acre : ( Feijó , -8.169901 , -70.35216 , photo by Tomé) ; (Porto Acre , -9.735472 , -67.690072 , photo by Douglas Menezes) ; ( Rio Branco , -9.996065 , -67.839233 ) . PERU , Cuzco : ( Paucartambo , -12.89445 , -71.403153 , photo by Alejandro Lopera ; -13.055481 , -71.546531 , photo by Rich Hoyer) . Diagnosis. Body length ranging from 19.2 mm to 19.6 mm . Maximum head width across the mandibular plates less than half the head width across the eyes; inner margins of mandibular plates straight anterior to clypeus; distal half of antennomeres I surpassing the mandibular plates; antennomeres II slightly clavate, around half the length of antennomeres I; labium surpassing the middle of metasternum, with an inconspicuous intercalary segment between labiomeres I an II; metasternum flat, elevated. Pygophore posterolateral angles with apices acute in dorsal view; ventral rim v-shaped with dense tufts of long setae; apical branch of the parameres’ head single, not bifurcated. Description. Body dark brown ( Fig. 22 ), length ranging from 19.2 mm to 19.6 mm . Head wider than long; maximum head width across the mandibular plates less than 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 straight anterior to clypeus, apex acute; distal half of antennomeres I surpassing the mandibular plates; antennomeres II slightly clavate, around half the length of antennomeres I; proportion of antennomeres: I<II<III ≅ IV<V ( Fig. 23 , A); labium surpassing the middle of metasternum ( Fig. 21 , B), with an inconspicuous intercalary segment between labiomeres I an II ( Fig. 23 , B), proportion of labiomeres: I<II>III>IV. Thorax. Pronotum twice as wide as long; anterior and lateral margins shallowly concave ( Fig. 23 , A). Lateral half of the corial posterior margin concave, apical angle surpassing the anterior margin of connexival segment VI ( Fig. 22 , A). Metasternum flat, elevated. Abdomen. Medial portion of urosternites yellowish and unpunctured ( Fig. 22 , B); inner trichobothria lateral to spiracles. Male. Measurements (n=1): Total length 19.60; width of abdomen 9.00; head length 2.20; width 3.40; pronotum length 3.70; width 7.90; scutellum length 6.90; width 5.00; length of antennomeres: I 1.50, II 0.90, III 3.00, IV 2.90, V -; length of labiomeres: I 1.00, Int. 0.30, II 1.70, III 1.70, IV 1.40. Genitalia ( Fig. 24 ). Pygophore. Posterolateral angles dorsally excavated with lateral margins convex, apices acute and directed to each other ( Fig. 24 , A, B, E); ventral rim v-shaped with dense tufts of long setae ( Fig. 24 , E). Segment X with dense setae along the posterior margin; apex cone-shaped, posteriorly projected ( Fig. 24 , A–C). Parameres laterally sinuous; head of parameres not bifurcated, tapering posteriorly ( Fig. 24 , A, green line). FIGURE 22. Zimmeria costalimai Pirán, 1962 , male alotype, A, dorsal; B, ventral; C, lateral; D, labels. Scale bar = 10 mm. FIGURE 23. Janeirona costalimai ( Pirán, 1962 ) , A, head and pronotum in dorsal view; B, labiomeres I, II and labial intercalary segment (arrow); C, external scent efferent system. Scale bars: A = 5 mm; B = 1 mm; C = 2 mm. FIGURE 24. Janeirona costalimai ( Pirán, 1962 ) , male, pygophore, A, dorsal; B, dorsolateral; C, posterior; D, lateral; E, ventral. Scale bar = 2 mm. FIGURE 25. Janeirona costalimai ( Pirán, 1962 ) , female, A, genital plates; B, internal genitalia; C, distal portion of ductus receptaculi, pars intermedialis, and capsula seminalis. Abbreviations: cs = capsula seminalis; drd = distal portion of ductus receptaculi; drp = proximal portion of ductus receptaculi; laVIII = laterotergites VIII; laIX = laterotergites IX; pi = pars intermedialis; vfVIII = valvifers VIII; vfIX = valvifers IX; X = segment X. Scale bars: A = 2 mm; B = 2,5 mm; C = 1 mm. Female. Measurements (n=1): Total length 19.20; width of abdomen 8.70; head length 2.00; width 3.50; pronotum length 4.00; width 8.30; scutellum length 7.00; width 5.20; length of antennomeres: I 1.50, II 0.90, III 3.00, IV 3.00, V 3.80; length of labiomeres: I 1.10, Int. 0.30, II 2.00, III 1.70, IV 1.40. Genitalia. ( Fig. 25 ). Valvifers VIII longer than wide, lateral angles broadly convex and posteriorly projected relative to the sutural angles, posterior margins convex, sutural margins with sparse setae ( Fig. 25 , A, vfVIII); laterotergites VIII as wide as long, posterior margins subrectilinear ( Fig. 25 , A, laVIII); laterotergites IX with sparse setae, lateral margins slightly concave, mesial margins convex, and rounded apices, not surpassing mediotergite VIII ( Fig. 25 , A, laIX). Valvulae IX with 1+1 elliptical secondary thickenings ventral to the ring sclerites; thickening of vaginal intima elliptical in ventral view; ring sclerites subtriangular, slightly wider than the thickening of the vaginal intima ( Fig. 25 , B); proximal portion of ductus receptaculi coiled, more than twice longer than the vesicular area ( Fig. 25 , B, drp); median duct of vesicular area uniformly wide through its length; distal portion of ductus receptaculi dilated towards the pars intermedialis, 1.5 times longer than pars intermedialis and capsula seminalis taken together ( Fig. 25 , B, drd); pars intermedialis three times longer than capsula seminalis, this with three digitiform projections ( Fig. 25 , B, pi, cs). Comments. Similar to Janeirona insignis and Janeirona aurea Sampaio & Campos sp. nov. . Differs from J. insignis by the not dilated antennomeres I, labium surpassing the middle of the metasternum, labial intercalary segment, metasternum transversely flat, the head of parameres not bifurcated, and pygophore posterolateral angles with acute apices directed to each other. Differs from J. aurea Sampaio & Campos sp. nov. by the dark venter color, metasternum flat, and labium surpassing the middle of the metasternum. Differs from all species in the genus by the clavate antennomeres II. It was not possible to access the holotype of Janeirona asaroana , however, the information present in Brailovsky (1988) is sufficiently detailed to propose J. asaroana a new junior synonym of Janeirona costalimai , whose holotype the first author examined in the MACN. From the description and illustrations of J. asaroana , this species shares with J. costalimai the same diagnostic characters, notably the distal half of antennomeres I surpassing the mandibular plates, antennomeres II slightly clavate, ventral rim of pygophore v-shaped with dense tufts of long setae, and apices of the posterolateral angles of pygophore acute and directed to each other. Distribution: Brazil ( Acre ), Bolívia , Peru .