Paropsocolis convergens Sampaio & Campos, 2023

Sampaio, Vinícius Gomes & Campos, Luiz Alexandre, 2023, Paropsocolis, a new pentatomid genus with two new species from Brazil (Heteroptera, Pentatomidae, Ochlerini), Zootaxa 5323 (4), pp. 553-566 : 557-561

Paropsocolis convergens Sampaio & Campos , sp. nov.

( Figs. 3–24 )

Etymology. The epithet refers to the converging apex of the paramere bifurcation. Latin: convergere, turned to each other.

Holotype. Male, here designated. BRAZIL, Minas Gerais: Marliéria, Parque Estadual do Rio Doce (-19.77, -42.60), 8-14-V-1978. Deposited in: CCT-UFMG ( Figs. 3–9 )

Paratypes. Male, BRAZIL, Santa Catarina: Corupá (-26.42, -49.31), I-1954, A Mallep. Deposited in: MNRJ . Female, BRAZIL, Minas Gerais: Juiz de Fora (-21.72, -43.45), IX-1989, S. L. Bonatto. Deposited in: UFRG . Female, BRAZIL, Rio de Janeiro: Itatiaia , 700 m (-22.49, -44.58), 6-XI-1949. Deposited in: MNRJ .

Diagnosis. Flat body ( Fig. 5 ); labium almost attaining the posterior margin of urosternite III ( Fig. 4 ); metasternal carina widened and evanescent posteriorly; peritremal disc not attaining the lateral third of metapleura ( Fig. 9 ); pygophore ( Figs. 10–15 ) with lateral margins subparallel; ventral rim with a dense tuft of setae next to posterolateral angles; paramere dish-shaped process small and shallow; apical bifurcation of paramere converging ( Figs. 18–20 ).

Description. Body dorsoventrally flattened ( Fig. 5 ). Punctures black, minute on head, denser on scutellum and hemelytra than on pronotum ( Fig. 3 ). Head 1.2 times wider than long; labium almost attaining the posterior margin of urosternite III ( Fig. 4 ). Thorax. Pronotal anterior margin deeply concave, anterolateral angles in a minute spine ( Fig. 7 ). Scutellar apex rounded. Metasternal carina widened and evanescent posteriorly. Peritremal disc not attaining the lateral third of metapleura ( Fig. 9 ). Abdomen. Connexiva pale brown. Urosternites darker than the dorsal body surface; spiracles dark, not contrasting with the surrounding surface ( Fig. 4 ).

Male. Measurements (n=2): Total length 14.05 ± 0.63 (13.6–14.15); width of abdomen 8.05 ± 0.35 (7.80– 8.30); head length 2.15 ± 0.07 (2.10–2.20); width 2.65 ± 0.07 (2.60–2.70); pronotum length 3.30 ± 0.00 (3.30); width 7.40 ± 0.28 (7.20–7.60); scutellum length 5.55 ± 0.49 (5.20–5.90); width 4.50 ± 0.14 (4.40–4.60); length of antennomeres: I 0.85 ± 0.07 (0.80–0.90), II 0.85 ± 0.07 (0.80–0.90), III 1.35 ± 0.07 (1.30–1.40), IV –; V–; length of labiomeres: I 1.25 ± 0.21 (1.10–1.40), Int 0.20 ± 0.00 (0.20), II 2.15 ± 0.07 (2.10–2.20), III 1.65 ± 0.07 (1.60–1.70), IV 1.50 ± 0.00 (1.50).

Genitalia ( Figs. 10–20 ). Pygophore. Lateral margins subparallel ( Fig. 10 ); dorsal wall length on midline subequal to segment X length ( Fig. 10 ); dorsal rim forming an open “v” over segment X ( Figs. 10–12 ); posterolateral angles narrowly excavated, forming a pit ( Figs. 10–12 ); ventral rim with a dense tuft of pale setae next to posterolateral angles, posterior to a small subtriangular projection ( Figs. 12, 15 ); middle half of ventral rim “u”-shaped ( Fig. 15 ). Segment X with lateral long, contrasting pale setae ( Figs. 10–12 ). Parameres laterally compressed, dish-shaped process small and shallow; apical bifurcation of paramere converging, external branch longer than the internal ( Figs. 18–20 ). Phallus moderately sclerotized; proximal thecal width less than three times the maximum thecal width in lateral view ( Fig. 16 , th); dorsal process of endosoma shorter than the rigid part of the ventral process of endosoma ( Fig. 16 , dpe, vpe); apical lobes of the dorsal process of endosoma small ( Fig. 17 ), about the same size of the lobes of the ventral process of theca; ventral process of endosoma several times longer than theca, rigid at base and flexible and spiraled along its length ( Fig. 16 , vpe).

Female. Measurements (n=2): Total length 15.04 ± 0.70 (14.90–15.90); width of abdomen 8.20 ± 0.28 (8.00– 8.40); head length 2.20 ± 0.00 (2.20); width 2.85 ± 0.21 (2.70–3.00); pronotum length 3.60 ± 0.14 (3.50–3.70); width 7.80 ± 0.28 (7.60–8.00); scutellum length 5.75 ± 0.35 (5.50–6.00); width 4.30 ± 0.00 (4.30); length of antennomeres: I 0.95 ± 0.07 (0.90–1.00), II 0.80 ± 0.14 (0.70–0.90), III 1.30 ± 0.14 (1.20–1.40), IV 1.90 ± 0.00 (1.90); V–; length of labiomeres: I 1.35 ± 0.07 (1.30–1.40), Int 0.20 ± 0.00 (0.20), II 2.10 ± 0.00 (2.10), III 1.65 ± 0.07 (1.60–1.70), IV 1.50 ± 0.14 (1.40–1.60).

Genitalia ( Figs. 21–24 ). Valvifers VIII wider than long, posterior margins straight, sutural margins juxtaposed ( Fig. 21 , vfVIII); laterotergites VIII as wide as long, posterior margin projected in spine, spiracles visible next to the posterior margin of valvifers VIII ( Fig. 21 , laVIII); laterotergites IX trapezoidal with acute apices, mesial margin convex ( Fig. 21 , laIX). Thickening of vaginal intima circular, more sclerotized on posterior margin ( Fig. 24 , tgvi); secondary thickenings of valvulae IX subtriangular, ring sclerites elliptical ( Fig. 24 , tgIX, rs); proximal portion of ductus receptaculi ( Fig. 22 , drp) spiraled and longer than vesicular area; distal portion of ductus receptaculi dilated towards the pars intermedialis ( Figs. 22, 23 , drd), three times longer than pars intermedialis and capsula seminalis taken together ( Fig. 23 , cs, pi); median duct of vesicular area cylindrical, as wide as the proximal portion of ductus receptaculi; pars intermedialis three times longer than capsula seminalis, this with three digitiform projections. Distribution. Brazil (Minas Gerais, Rio de Janeiro, Santa Catarina) ( Fig. 2 ).

Figures

FIGURE 2. Geographic distribution of Paropsocolis Sampaio & Campos, gen. nov..

FIGURES 3–6. Paropsocolis convergens Sampaio & Campos, sp. nov., male holotype, 3, dorsal; 4, ventral; 5, lateral; 6, label. Scale bar = 5 mm.

FIGURES 7–9. Paropsocolis convergens Sampaio & Campos, sp. nov., male holotype, 7, head and pronotum; 8, labial intercalary segment (bracket); 9, external scent efferent system. Scale bars: 7 = 5 mm; 8, 9 = 1 mm.

FIGURES 10–15. Paropsocolis convergens Sampaio & Campos, sp. nov., male, pygophore, 10, dorsal; 11, dorsoposterior; 12, dorsolateral; 13, posterior; 14, lateral; 15, ventral. Scale bar 0.5 mm.

FIGURES 16–20. Paropsocolis convergens Sampaio & Campos, sp. nov., male, 16, phallus (lateral); 17, dorsal process of endosoma; 18–20, right paramere in dorsal, lateral, and medial views, respectively. Abbreviations: dpe = dorsal process of endosoma; th = theca; vpe = ventral process of endosoma; vpt = ventral process of theca; vtt = ventral tubercle of theca. Scale bars = 0.5 mm.

FIGURES 21–24. Paropsocolis convergens Sampaio & Campos, sp. nov., female, 21, genital plates; 22, internal genitalia; 23, distal portion of ductus receptaculi, pars intermedialis, and capsula seminalis; 24, valvulae IX and vaginal intima.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; rs = ring sclerites; tgIX = secondary thickenings of valvulae IX; tgvi = thickening of vaginal intima; vfVIII = valvifers VIII; vfIX = valvifers IX; vlIX = valvulae IX; X = segment X. Scale bars: 21 = 1 mm; 22 = 2 mm; 23, 24 = 0.5 mm.