Janeirona roellae Sampaio & Campos 2024, sp. nov.
Creators: name: Sampaio, Vinícius Gomes
name: Oliveira, Giulia Valadão De
name: Campos, Luiz Alexandre
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Janeirona
Janeirona roellae

description: Janeirona roellae Sampaio & Campos sp. nov.
(Figs. 34–38, 43)
Etymology. Named after Dr. Talita Roell for her contributions to the knowledge of the tribe Ochlerini.
Holotype (Figs. 34, 36, 37). Male, here designated. BRAZIL, São Paulo: (Parque Estadual da Cantareira, - 23.4058, -46.5742). Labels: Brasil-S.P / Pq. Est. Cant. /1-XI-94 [1994] / Exc. M. Z. U.S.P. COL // MZSP HEM / 0008930. Deposited in: MZSP.
Paratypes. BRAZIL, Minas Gerais: (Padre Paraíso, -17.0734, -41.5015), female, 16- XI-1965 (UFRG); Rio de Janeiro: (Itatiaia, -22.4911, -44.7197), Female, II-1950, W. Zikan (DZUP); São Paulo: (Salesópolis, Estação Biológica de Boraceia, -23.5324, -45.8823), female, VIII-1962, Rabello (DZUP); (Campos do Jordão, -22.7330, -45.5861), female, 23-XII-1944, Lane (UFRG); Santa Catarina: (Ibirama, -27.0599, -49.5422), female, II-1940, A. Maller (UFRG).
Diagnosis. Body length ranging from 11.70 mm to 14.50 mm. Posterior margins of the eyes forming an angle of 45º with the longitudinal body axis; labium attaining urosternite III. Metasternum flat. Pygophore with short and rounded posterolateral angles, ventral rim u-shaped, and apical branches of the head of parameres almost equally projected.
Description. Body dark brown (Fig. 24). Head 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 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 acute; antennomeres I slightly surpassing the mandibular plates; proportion of antennomeres: I ≅ II<III<IV<V (Fig. 35, A); labium attaining urosternite III (Fig. 34, B), without intercalary segment (Fig. 35, B); proportion of labiomeres: I<II>III>IV.
Thorax. Pronotum more than twice wider than long, anterior and lateral margins shallowly concave (Fig. 35, A). Lateral half of the corial posterior margin slightly concave, apical angle surpassing half of the connexival segment VI (Fig. 34, A). Metasternum flat.
Abdomen. Medial portion of urosternites yellowish and unpunctured (Fig. 34, B); trichobothria lateral to spiracles.
Male. Measurements (n=3): Total length 11.80 ± 0.43 (12.50–11.70); width of abdomen 6.80 ± 0.32 (6.90– 6.30); head length 1.80 ± 0.17 (2.10–1.80); width 2.40 ± 0.05 (2.50–2.40); pronotum length 2.60 ± 0.05 (2.60–2.50); width 6.10 ± 0.25 (6.40–5.90); scutellum length 4.80 ± 0.11 (4.80–4.60); width 3.80 ± 0.05 (3.80–3.70); length of antennomeres: I 0.90 ± 0.05 (0.90–0.80), II 0.80 ± 0.20 (1.00–0.60), III 1.30 ± 0.20 (1.40–1.00), IV 1.50 ± 0.20 (1.70–1.30), V (n=1) 2.00; length of labiomeres: I 0.90 ± 0.10 (1.00–0.80), Int. 0.10 ± 0.05 (0.20–0.10), II 1.60 ± 0.20 (1.80–1.40), III (n=2) 1.35 ± 0.07 (1.40–1.30), IV (n=2) 1.00 ± 0.00 (1.00–1.00).
Genitalia (Figs. 36, 37). Pygophore. Lateral margins slightly sinuous (Fig. 36. A, E); dorsal wall length on midline 0.7 times the segment X length; dorsal rim concave over segment X (Fig. 36. A); posterolateral angles short, dorsally excavated with lateral margins convex, apices rounded in dorsal view and posteriorly exceeding the segment X for 0.6 times the latter’s length (Fig. 36. A, B); ventral rim u-shaped with setae (Fig. 36. E). Segment X with dense setae along the posterior margin; apex with a short cone-shaped projection (Fig. 36, A–C, F). Parameres laterally sinuous, dish-shaped process with a tuft of thin setae on the apical portion; apical branches of the head of parameres shorter than the dish-shaped process, almost equally projected, external branch longer than the internal (Fig. 37, D–F). Phallus. Proximal thecal width 1/3 of the maximum thecal width in lateral view (Fig. 36, A); apical lobes of the dorsal process of endosoma weakly dilated and rounded (Fig. 37, A–C).
Female. Measurements (n=3): Total length 14.40 ± 0.43 (14.50–13.70); width of abdomen 7.00 ± 0.20 (7.30– 6.90); head length 2.00 ± 0.17 (2.00–1.70); width 2.50 ± 0.11 (2.70–2.50); pronotum length 2.80 ± 0.05 (2.90–2.80); width 6.70 ± 0.20 (7.00–6.60); scutellum length 5.30 ± 0.05 (5.40–5.30); width 4.30 ± 0.17 (4.30–4.00); length of antennomeres: I (n=2) 0.90 ± 0.00 (0.90–0.90), II (n=2) 0.85 ± 0.07 (0.90–0.80), III (n=2) 1.35 ± 0.21 (1.50–1.20), IV (n=1) 1.50, V (n=1) 2.40; length of labiomeres: I (n=2) 0.95 ± 0.07 (1.00–0.90), Int. (n=2) 0.10 ± 0.00 (0.10– 0.10), II (n=2) 1.75 ± 0.07 (1.80–1.70), III (n=2) 1.35 ± 0.21 (1.50–1.20), IV (n=2) 1.10 ± 0.14 (1.20–1.00).
Genitalia. (Fig. 38). Valvifers VIII longer than wide, lateral angles broadly convex and posteriorly projected relative to the sutural angles, posterior margins weakly sinuous (Fig. 38, A, vfVIII); laterotergites VIII wider than long (Fig. 38, A, laVIII); laterotergites IX with lateral margins straight, mesial margins convex, and rounded apices slightly surpassing mediotergite VIII (Fig. 38, A, laIX). Thickening of the vaginal intima subrectangular; ring sclerites elliptical in ventral view, 2.5 times wider than the thickening of the vaginal intima (Fig. 38, B); proximal portion of ductus receptaculi coiled and longer than the vesicular area (Fig. 38, B, drp); median duct of vesicular area uniformly wide through its length; distal portion of ductus receptaculi uniformly widened towards the pars intermedialis, more than 2.5 times longer than pars intermedialis and capsula seminalis taken together (Fig. 38, B, drd); pars intermedialis twice longer than capsula seminalis, this with three digitiform projections (Fig. 38, B, pi, cs).
Comments. Similar to Janeirona vianai, differing from it by the maximum head width across the mandibular plates subequal to half the head width across the eyes, labium attaining the urosternite III, and metasternum flat. Differs from all species in the genus by the posterior margins of the eyes forming an angle of 45º with the longitudinal body axis.
Distribution: Brazil (Minas Gerais, Rio de Janeiro, São Paulo, and Santa Catarina).
description: Published as part of Sampaio, Vinícius Gomes, Oliveira, Giulia Valadão De & Campos, Luiz Alexandre, 2024, Revision of Janeirona Distant, 1911 (Hemiptera: Pentatomidae: Ochlerini) with the description of four new species from Brazil, pp. 451-495 in Zootaxa 5497 (4) on pages 485-488, DOI: 10.11646/zootaxa.5497.4.1, http://zenodo.org/record/13618999