Euschistus (Mitripus) saramagoi Bianchi, Cioato & Grazia

Cioato, Alana, Bianchi, Filipe Michels, Eger, Joseph & Grazia, Jocelia, 2015, New species of Euschistus (Euschistus) from Jamaica, Euschistus (Mitripus) and Ladeaschistus from southern South America (Hemiptera: Heteroptera: Pentatomidae: Pentatominae), Zootaxa 4048 (4), pp. 565-574 : 567-570

publication ID	https://doi.org/ 10.11646/zootaxa.4048.4.7
publication LSID	lsid:zoobank.org:pub:3F0F58CB-EE87-4DCA-B599-F2583A5B025B
DOI	https://doi.org/10.5281/zenodo.6094144
persistent identifier	https://treatment.plazi.org/id/03A60067-8A37-FFC2-FF38-CADB935BFD73
treatment provided by	Plazi
scientific name	Euschistus (Mitripus) saramagoi Bianchi, Cioato & Grazia
status	sp. nov.

Treatment

Euschistus (Mitripus) saramagoi Bianchi, Cioato & Grazia sp. nov.

Etymology. Named in honor of José Saramago, for his contribution to literature. This late Portuguese writer, who had received the Nobel Prize in Literature 1998, was responsible for the spread of prose in Portuguese around the word.

Distribution. Brazil, Rio Grande do Sul, São Francisco de Paula; Santa Catarina, Mondaí.

Type material. Holotype ♂. BRAZIL, Santa Catarina Mondaí . 14.II.2013, Botega, C. ( UFRG). Paratypes. BRAZIL, Rio Grande do Sul: São Francisco de Paula (FLONA) . 2♂ (one without pygophore), 18.XII.2010, Bianchi, F. M. col. [-29.4281, -50.3903] ( UFRG). GoogleMaps 1♀ (without abdomen), 31.I.2007, Fürstenau, B. B. & Weiler, L. M. col ( UFRG). 1♀, 18.XII.2010, Bianchi, F. M. col. [-29.4281, -50.3903] ( UFRG), GoogleMaps 4♀, 2012, Bianchi, F. M. col. [-294477, -50.5838] ( UFRG). GoogleMaps

Description. Head: Longer than wide; dorsal surface dark brown. Mandibular plates surpassing clypeus, apices convergent, obtuse. Antennae pale yellow, black bands at apex of segments I and III segments and most of IV and V. Bucculae evanescent at base of head. Rostrum reaching metacoxae.

Thorax: Pronotum with anterior third darker than disc; anterolateral margins dark, denticulate at least along anterior third; humeri developed, obtuse, directed anterolaterally; posterior margin of humeri often reddish; cicatrices of pronotum bearing callus at basal angles, concolorous. Scutellum with small fovea present at basal angles; 1+1 areas more densely punctured at the disc. Membrane of hemelytra clear; seven longitudinal veins, and two cross veins near the base. Ventrally with dark spot at supracoxal cleft of each pleurite, plus at middle metaepimeron. Metasternum carinate. Legs straw yellow, with coarse dark dots on femora and tibiae.

Abdomen: Connexivum dark brown, bearing a pale yellow spot between anterior and posterior margins. Spiracles black.

Male Genitalia: ( Figs. 6–11 View FIGURES 6 – 15 ) Ventral rim of pygophore concave, in ''U''-shaped excavation; lateral margins subrectilinear to parallel. Dorsal rim with median third concave, lateral margins curved. Posterolateral angles of pygophore with clear carina and with bristle tufts. Carina along dorsal rim obsolete; genital cup with superior process of dorsal rim of pygophore (anterior carina and posterior carina of Rolston 1978) in a deeper carina, subtriangular, and partly hidden by the paramere. ( Fig. 12 View FIGURES 6 – 15 ) Parameres falciform. Phallus. ( Figs. 13–15 View FIGURES 6 – 15 ) Processes of phalloteca sinuous, thickened at base, placed laterally and surpassing the middle of the processus vesicae. Conjunctiva with lateral lobes globose and a large median lobe. Ductus seminis distalis not coiled, as long as the processus vesicae. Length of vesica and conjunctiva equal to half the length of phalloteca.

Measurements: (n=3) Body length 7.3 (7.1–7.5); abdominal width 2.84 (2.71–3.09); head length 1.68 (1.6– 1.8); length before eyes 0.96 (0.92–1.00); head width 1.76 (1.72–1.80); interocular distance 1.04 (1.00–1.12); antennal segments length: I 0.53 (0.46–0.53); II 0.77 (0.71–0.77); III 0.71 (0.59–0.71); IV 0.96 (0.84–1.02); V 1.36 (1.18–1.40); pronotum length 1.74 (1.70–1.80); pronotum width 5.48 (5.23–5.61); scutellum length 2.46 (2.46– 2.46); scutellum width 2.77 (2.71–2.83).

Female Genitalia: ( Figs. 16–18 View FIGURES 16 – 18 ) Gonocoxites 8 with sutural margins sinuous, overlapping at base, posterior margin convex. Gonocoxites 9 trapezoidal, obtuse angles. Laterotergites 8 acute at apex, posterolateral and posterior margins almost straight. Laterotergites 9 obtuse at apex, exceeding the band that unites laterotergites 8 dorsally. Gonapophyses 9 lightly sclerotized on disk. Chitinelipsen elliptical. Posterior portion of the thickening of vaginal intima ovoid; anterior portion rounded. Ductus receptaculi before vesicular area slightly longer than the vesicular area, dilated near that area. Ductus receptaculi after vesicular area uniform. Anterior and posterior annular flanges convergent, posterior annular flange larger than the anterior. Pars intermedialis slightly longer than adjacent ductus receptaculi. Capsula seminalis digitiform, longer than pars intermedialis.

Measurements: (n=5) Body length 8.5 (8.3–8.6); abdominal width 3.60 (3.34–3.72); head length 1.84 (1.72– 1.88); length before eyes 1.00 (1.00–1.04); head width 1.84 (1.76–1.88); interocular distance 1.12 (1.12–1.20); length of antennal segments: I 0.49 (0.43–0.50); II 0.77 (0.74–0.84); III 0.65 (0.62–0.71); IV 0.90 (0.87–0.93); V 1.27 (1.05–1.30); pronotum length 1.86 (1.77–1.90); pronotum width 5.86 (5.73–5.92); scutellum length 2.77 (2.65–2.83); scutellum width 3.02 (2.96–3.15).

Comments. The male genitalia suggests that Euschistus (Mitripus) saramagoi (habitus Fig.2 View FIGURES 1 – 3 ) is closely related to species of E. (M.) anticus group ( E. (M.) paranticus , E. (M.) hansi and E. (M.) irroratus ). Euschistus (M.) saramagoi can be distinguished from E. (M.) irroratus and E. (M.) anticus by the straight median third of the ventral rim of pygophore; from E. (M.) paranticus by the deeper excavation and E. (M.) hansi by the parallel lateral margins of the excavation. The general morphology is similar to E. (M.) hansi but it can be easily distinguished by the striped antennae.