Heteroscelis bimaculata
Creators: name: Sampaio, Vinicius Gomes
name: Roell, Talita
name: Campos, Luiz Alexandre
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Heteroscelis
Heteroscelis bimaculata

description: Heteroscelis bimaculata (Walker, 1867)
(Figs. 1, 20–24)
Platynopus bimaculatus Walker, 1867: 124; Distant 1900: 55 (syn.); Schouteden 1907: 20.
Heterosceloides bimaculata: Schouteden 1907: 20; Kirkaldy 1909: 30; Pirán 1961: 87 (syn.).
Heteroscelis bimaculata: Distant 1900: 55; Pirán 1961: 87; Thomas 1992: 49; Cambra et al. 2018: 5; Lupoli 2019: 79; Roell et al. 2023: 26.
Heteroscelis doello-juradoi Pirán, 1961: 92 new syn. (removed from the synonymy with H. servillii).
Heteroscelis denieri Pirán, 1961: 94; Thomas 1992: 49 (syn.).
Heteroscelis durionei Pirán, 1961: 95; Thomas 1992: 49 (syn.).
Types examined
BRAZIL. Platynopus bimaculatus Walker, 1867; male holotype; labels: “PETROPOLIS Feb. 1857. J. Gray” “6. Platynopus bimaculatus ”, “Type”, “ Holotype ”; “NHMUK 010592394”; (NHMUK). Photo examined (Fig. 21).
ARGENTINA. Heteroscelis doello-juradoi Pirán, 1961; male holotype; labels: “ HOLOTYPUS ”, “ Heteroscelis doello-juradoi Pirán 1959 ”, “Provincia Jujuy ”; (MACN). Photo examined (Fig. 22).
BOLIVIA. Heteroscelis denieri Pirán, 1961; male holotype; “ HOLOTYPUS ”, “ Heteroscelis Latr.?”, “Chirca 7.IV.31”, “ Heteroscelis denieri Pirán 1959 ”, “1420”; (MLPA). Photo examined (Fig. 23 A, B).
BOLIVIA. Heteroscelis durionei Pirán, 1961; female holotype; labels:“ HOLOTYPUS ”, “Coroico”, “ Heteroscelis durionei Pirán 1959 ”, “1421”; (MLPA). Photo examined (Fig. 23 C, D).
Other material examined. BRAZIL, Rio de Janeiro: (Itatiaia, 700m, -22.41099, -44.57621), 1 female, 1.IV.1925 J.F. Zikán (CEIOC); ECUADOR, Napo: (Tiputini Biodiversity Station, 216m, -0.6379, -76.1495), 1 female, 6.II.1999 T.L. Erwin, et al. (USNM); PERU, Cuzco: (Pilcopata, -14.13262, -69.27723), 1 female (UFRG).
Diagnosis. Coria with a circular yellow spot near to the posterior margin (Fig. 20, A); urosternite III tubercle yellow or orange, from apex to the posterior margin of the urosternite; two pairs of yellow abdominal spots, the first pair lateral in urosternites VI and VII, and the second pair mesial in urosternite VII; vesicular area of female genitalia twice longer than the proximal part of the ductus receptaculi.
Redescription
BODY: General color ranging from brown to iridescent purple; some specimens with yellow spots, callous or not, on the head, pronotum and scutellum.
HEAD: Mandibular plates equal to or slightly surpassing clypeus, anteriorly rounded, separated at apex; head length anterior to the eyes equal to 2/3 of the total length of the head (Fig. 20, D); labium almost reaching the metasternum; proportion of labiomeres: I<II>III<IV; proportion of antennomeres: I<II<III ≅ IV ≅ V.
THORAX: Coria longer than scutellum, not reaching the posterior margin of the connexival segment VI, uniformly punctured; membrane dark and surpassing posteriorly the abdomen; metapleural evaporatoria surpassing posteriorly the anterior limit of coxae; peritreme disc-shaped, surpassing half the pleural width; apex of peritreme rounded, posterior margin strongly arched, convex, anterior margin almost straight (Fig. 20, E); profemora with rudimentary ante-apical spine; foretibial length on average 3.5x larger than the width of the tibial dorsal expansion (Fig. 20, F).
ABDOMEN: Posterior angles of urosternites III to VII ending in minute spine (Fig. 20, B).
Male
GENITALIA (Fig. 21, C; Fig. 22, D): Pygophore with ventral rim slightly sinuous, shallowly concave medially.
Female
MEASUREMENTS (n=4). Head length 1.04 ± 0.23 (0.75–1.32); width 1.37 ± 0.13 (1.25–1.52); pronotum length 1.70 ± 0.36 (1.38–2.16); width 4.21 ± 0.53 (3.78–4.88); scutellum length 2.46 ± 0.39 (2.20–3.04); width 2.35 ± 0.39 (2.01–2.88); length of antennomeres: I (n=3) 0.31 ± 0.06 (0.25–0.37), II (n=3) 0.67 ± 0.09 (0.56–0.75), III (n=3) 0.79 ± 0.13 (0.69–0.94), IV (n=2) 0.88 ± 0.17 (0.75–1.00); V (n=1) 0.94; length of labiomeres: I 0.70 ± 0.11 (0.63–0.88), II 0.82 ± 0.15 (0.69–1.04), III 0.52 ± 0.09 (0.44–0.64), IV 0.67 ± 0.08 (0.63–0.80); width of foretibal expansion 0.53 ± 0.06 (0.50–0.56); width of abdomen 3.56 ± 0.45 (3.21–4.16); total length 6.26 ± 0.95 (5.41–7.60).
GENITALIA (Fig. 24):Valvifers VIII posterior margin bisinuous, uniformly convex over the base of laterotergites IX; laterotergites VIII wider than long, with spiracles close to the lateral margin. Segment X with the posterior margin straight; valvulae IX with a median hourglass-shaped secondary thickening; capsula seminalis oval.
Distribution: Panama, Ecuador (new record), French Guyana, Brazil, Peru, Bolivia and Argentina (Fig. 1).
description: Published as part of Sampaio, Vinicius Gomes, Roell, Talita & Campos, Luiz Alexandre, 2023, Revision of Heteroscelis Latreille, 1829 (Heteroptera: Pentatomidae: Asopinae) with the description of a new species from Colombia, pp. 401-438 in Zootaxa 5278 (3) on pages 422-425, DOI: 10.11646/zootaxa.5278.3.1, http://zenodo.org/record/7906373