Grammedessa fundicava Da Silva & Fernandes, 2022

Silva, Paulo Augusto Lima Da & Fernandes, José Antônio Marin, 2022, Description of six new species to Grammedessa Correia & Fernandes, 2016 (Heteroptera: Pentatomidae: Edessinae), Zootaxa 5129 (2), pp. 211-226 : 219-220

Grammedessa fundicava Da Silva & Fernandes sp.n.

( Figs. 1G–H ; 5A–C )

Diagnosis. Length 14.1 mm. Width 8.1 mm. Body dorsally green, corium brownish-green; beneath greenish-yellow ( Fig. 1G–H ). Tegument densely punctuated, punctures on distal margin of pronotum and scutellum black on dark spots, not forming lines like in G. nigricava sp.n. Disc of pronotum with green punctures on green spots slightly darker than the background ( Fig. 1G ). Humeral angles projection short, dentiform.Anterior half of the costal margin of corium with punctures on black spots ( Fig. 1G ); hypocostal ridge with black punctures. Legs with large black spots ( Fig. 1H ). Connexival segment VII with margin and punctures black. Distal part of the genital cup deeply excavated and black ( Fig. 5A ).

Description. Head wider than long (1.5 times). Antennae with only two segments lasting, both greenish-yellow, with small black spots. Thorax: Pronotum wider than long (3 times); cicatrices delimited by grooves, not punctuated. Beneath thoracic segments densely and irregularly punctured, punctures mostly concolorous; some punctures on propleura on green spots slightly darker than the background ( Fig. 1H ). Evaporatorium concolorous, dull, gently grooved, not spotted; lateral area rounded with concolorous punctures ( Fig. 1H ). Metasternal process greenishyellow; anterior bifurcation with arms strongly acuminate; not spotted ( Fig. 1H ). Abdomen: connexivum densely punctuated; segments III–VI medially with a callus barely visible. Ventrally shagreen, sparsely punctured, punctures concolorous; one trichobothrium in line and the other lateral to spiracles.

Male ( Fig. 5 ). Pygophore dark yellow, elongated (1.3 times); dorsal rim rounded, brown, not projected over the genital cup, except medially slightly projected over proctiger ( Fig. 5A ). Posterolateral angles slightly developed and somewhat tumid. Genital cup with a secondary deeper rounded excavation close to the ventral rim (visible as a rounded light spot on Fig. 5A ). Parameres with base cylindrical, anterior process large and triangular, posterior process short and triangular ( Fig. 5C ). Proctiger elongated (1.3 times), somewhat excavated laterally; thin carina on most of the posterior face ( Fig. 5C ). Ventral rim widely opened; expansions small, tumid, and rounded almost fused with posterolateral angles ( Fig. 5B ). Ventral surface convex beneath posterolateral angles; dark punctures near the ventral rim ( Fig. 5B ).

Etymology. Named by the deep rounded excavation on the genital cup. From the Latin. Fundus (deep) and Cavus (excavation).

Comments. This species shares with G. graciligramma sp.n. and G. nigricava sp.n. the genital cup deeply excavated close to the ventral rim. But the rounded deeper excavation is unique to G. fundicava sp.n.; ventral side of abdomen shagreen and sparsely punctured is another characteristic separating these three species.

Examined material (n=2). Holotype: BRAZIL: Mato Grosso. [ Barra do Tapirapé , 2–16.I.1966, Malkin col.] (1Male-MZUSP) . Paratype: BRAZIL: Maranhão. [ Carolina, Fazenda Cincorá , 17–22.X.2009, F. Limeira-de-Oliveira, R. O. Souza & M.B. Aguiar Neto] (1Male-CZMA) .

Distribution. BRAZIL: Maranhão, Mato Grosso.

Figures

FIGURE 1. Grammedessa. A–B: G. hamata comb.n. A: Dorsal view. B: Ventral view. C–D: G. nigricava sp.n. C: Dorsal view. D: Ventral view. E–F: G. longispina sp.n. E: Dorsal view. F: Ventral view. G–H: G. fundicava sp.n. G: Dorsal view. H: Ventral view. I–J: G. graciligramma sp.n. I: Dorsal view. J: Ventral view. K–L: G. stichtocephala sp.n. K: Dorsal view. L: Ventral view. M–N: G. acalyptoprocta sp.n. M: Dorsal view. N: Ventral view. Scale = 10 mm.

FIGURE 5. Male genitalia of G. fundicava sp.n. A: Pygophore in dorsal view. B: Pygophore in ventral view. C: Pygophore in posterior view. Scale = 1 mm.