Janeirona flavipes 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 flavipes

description: Janeirona flavipes Sampaio & Campos sp. nov.
(Figs. 30–33, 43)
Etymology. The epithet refers to the yellow legs. Latin: flavus, yellow; pes, feet, legs.
Holotype (Figs. 30, 32). Male, here designated. BRAZIL, Rio Grande do Sul: (Santa Maria, -29.7198, -53.8692). Labels: S. Maria 12-II-56 [1956] / E. E. S. / D. R. Camargo leg. / Nº. 71. Deposited in: DZUP.
Paratypes. BRAZIL, Rio Grande do Sul: (Santa Maria, -29.7198, -53.8692), female, 15-XI-1973, Carlotto (DZUP); female, 21-XII-1961, Link (UFRG); (São Leopoldo, -29.7509, -51.2255), female, Pe. Buck. leg. (UFRG).
Records retrieved from iNaturalist
BRAZIL, Rio Grande do Sul: (Cruz Alta, -28.650535, -53.593699, © Fernando Sessegolo).
Diagnosis. Body elongated, length ranging from 13.5 mm to 14.5 mm. Antennomeres I not surpassing the mandibular plates; labium attaining urosternite III, with an inconspicuous intercalary segment between labiomeres I an II; legs yellowish; metasternum transversely arched. Pygophore ventral rim u-shaped; posterolateral angles acutely rounded in dorsal view; head of parameres bifurcated, with external branch narrower and longer than internal.
Description. Body elongated, dark brown; legs, labium and proximal portion of antennomeres V yellowish (Fig. 30). 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 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 acute; antennomeres I not surpassing the mandibular plates, proportion of antennomeres: I ≅ II<III ≅ IV<V (Fig. 31, A); labium attaining urosternite III (Fig. 30, B), with an inconspicuous intercalary segment between labiomeres I an II (Fig. 31, B); proportion of labiomeres: I<II>III>IV.
Thorax. Pronotum 2.5 times wider than long; anterior margin shallowly concave, lateral margins weakly sinuous (Fig. 31, A). Lateral half of the corial posterior margin weakly concave, apical angle attaining the middle of connexival segment VI (Fig. 30, A). Metasternum transversely arched.
Abdomen. Medial portion of urosternites unpunctured (Fig. 30, B); trichobothria lateral to spiracles.
Male. Measurements (n=1): Total length 13.50; width of abdomen 6.00; head length 2.00; width 2.50; pronotum length 2.40; width 6.00; scutellum length 5.10; width 3.70; length of antennomeres: I 0.90, II 0.90, III 1.70, IV -, V -; labium missing.
Genitalia (Fig. 32). Pygophore. Lateral margins straight anterior to and convex at the posterolateral angles (Fig. 32. A, E); dorsal wall length on midline as long as segment X; dorsal rim concave over segment X (Fig. 32. A); posterolateral angles acutely rounded, dorsally excavated, and exceeding the segment X for about the latter’s length (Fig. 32. A, B); ventral rim u-shaped, sinuous, with two dense tufts of setae close to the apex of posterolateral angles (Fig. 32. E). Segment X with dense setae along the broad ogival posterior margin and an acute process posteriorly directed (Fig. 32, A–C). Parameres laterally sinuous, dish-shaped process with a tuft of thin setae on the apical portion; head of parameres bifurcated, with external branch narrower and longer than internal (Fig. 32, A, B).
Female. Measurements (n=3): Total length 14.50 ± 0.34 (14.50–13.90); width of abdomen 6.40 ± 0.15 (6.50– 6.20); head length 1.70 ± 0.20 (1.80–1.40); width 2.60 ± 0.05 (2.70–2.60); pronotum length 2.50 ± 0.05 (2.50–2.40); width 6.10 ± 0.10 (6.20–6.00); scutellum length 5.40 ± 0.10 (5.50–5.30); width 3.80 ± 0.15 (4.00–3.70); length of antennomeres: I 0.80 ± 0.11 (1.00–0.80), II 0.80 ± 0.10 (0.90–0.70), III 1.50 ± 0.00 (1.50–1.50), IV 1.70 ± 0.05 (1.80–1.70), V (n=2) 1.85 ± 0.35 (2.10–1.60); length of labiomeres: I 0.90 ± 0.05 (1.00–0.90), Int. 0.20 ± 0.00 (0.20–0.20), II 1.50 ± 0.15 (1.60–1.30), III 1.40 ± 0.00 (1.40–1.40), IV 1.10 ± 0.05 (1.20–1.10).
Genitalia (Fig. 33). Valvifers VIII as long as wide, lateral angles slightly posteriorly projected relative to the sutural angles, posterior margins straight over the plates of segment IX (Fig. 33, A, vfVIII); laterotergites VIII wider than long (Fig. 33, A, laVIII); laterotergites IX with lateral margins straight, mesial margins convex, and rounded apices not surpassing the mediotergite VIII (Fig. 33, A, laIX). Thickening of the vaginal intima subrectangular; ring sclerites subtriangular in ventral view, 1.5 times wider than the thickening of the vaginal intima (Fig. 33, B); proximal portion of ductus receptaculi coiled and longer than vesicular area (Fig. 33, B, drp); median duct of vesicular 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. 33, B, drd); pars intermedialis twice longer than capsula seminalis, this with three digitiform projections (Fig. 33, B, pi, cs).
Comments. Similar to Janeirona vianai and Janeirona stenosa Sampaio & Campos sp. nov.. Differs from J. vianai by the elongated body, labium attaining the urosternite III, labial intercalary segment, and the not twisted external branch of the head of parameres. Differs from J. stenosa Sampaio & Campos sp. nov. by the maximum head width across the mandibular plates subequal to half the head width across the eyes, antennomeres I not surpassing the mandibular plates, and inner margin of mandibular plates concave anterior to clypeus. Differs from all species in the genus by the yellowish legs.
Distribution: Brazil (Rio Grande do Sul).
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 481-485, DOI: 10.11646/zootaxa.5497.4.1, http://zenodo.org/record/13618999