Hypoxys pentagonalis, Nunes & Mendonça & Fernandes, 2022

Nunes, Benedito Mendes, Mendonça, Maria Thayane Da Silva & Fernandes, Jose Antonio Marin, 2022, Seventeen new Species of Hypoxys Amyot & Serville, 1843 (Heteroptera: Pentatomidae: Edessinae), Zootaxa 5159 (2), pp. 187-220 : 205

Hypoxys pentagonalis sp. n.

( Figures 11A–E , 19I–J , 21B )

http://zoobank.org/ urn:lsid:zoobank.org:act:A0D00A12-DD05-4EAF-AFF1-92886F84C65F

Material examined (n=16). Holotype ♂: BRAZIL. Pará. Rio Tapajós , Mun. [Município] de Itaituba, Santaremzinho , XI.1960, Dirings leg. ( MZUSP) . Paratypes: BRAZIL. Maranhão: ♂ C.N. Maranhão, REBIO–Res. Biol. Gurupi , 03º14’05”S 46º41’83”W, 01–06.III.2011, Rede entomológica, F. Limeira de Oliveira & D. W. A. Marques leg. ( UEMA) ; ♀ Rio Maracaçume , 22–23.V.1963, B. Malkin leg. ( MZUSP) ; Pará: ♀ Barcarena, PA –483, 3.X.2012, J. Villar leg. ( MPEG) ; ♀ Ilha Grande , 18.I.2008, R.M. Valente leg. ( UFRG) ; ♂ Fzda Taperinha prox. Santarém, I – II–III.1968, Exp. Perm. Amaz. ( MZUSP) ; ♂ Santarém ( USNM) ; ♀ Canaã dos Carajás, Fzda Manjolim, 1.X.2008, Ferreira, RV leg. ( UFRG) ; ♂ Rio Tapajós, Mun. De Itaituba, Santaremzinho , V.1961, Dirings leg. ( MZUSP) ; ♀ VIII.1961 ( MZUSP) ; ♂ XI.1961 ( MZUSP) ; ♂ Melgaço-Caxiuanã G–PPBio– Caquajó, C – 2500m ( CJ – CI), 18.IX.2006, Rede entomológica, A.L. Nunes leg. ( MPEG) ; ♂ Caxiuanã , VIII.2010, Gleomar ( UFRG) ; Amazonas : ♀ Tonantins, Amazon River , VIII.1923, S. Kleges leg. ( USNM) ; 2♀ Taperinha , Nº 4–916, G. Hagmann leg. ( MNRJ) .

Measurements. Total length: 15.8–18.1; head length: 1.5–1.7; head width: 3.0–3.4; pronotal length: 2.8–3.5; pronotal width: 9.8–10.7; scutellum length: 7.4–8.3; scutellum width: 5.5–6.0; abdominal width: 8.6–9.9; length of antennal segments. I: 0.9–1.0; II: 1.7–2.5; III: 1.4–2.2; IV: 4.1–4.5; V: 4.3–4.9.

Diagnosis. Anterolateral margin of pronotum with solid black stripe along all or part of its extension; when stripe incomplete, remaining part smoky black and narrow. Anterolateral margin punctured dorsally. Cicatrices of pronotum with black punctures delimiting anterior sulci ( Fig. 19I ). Scutellum with anterior margin yellow ( Fig. 19I ). Body ventrally with dark brown stripes ( Fig. 19J ). Male genitalia ( Fig. 11A–D ). Pygophore dorsal rim excavated with a small triangular median projection ( Fig. 11A ). Superior process of genital cup small and curved ventrally, ventral margin with digitiform expansion close to distal apex; adjacent to dorsal rim; visible in dorsal view ( Fig. 11A–C ). Paramere golf club like, elongated, strongly bent laterally; anterior lobe rounded and short; posterior lobe tapering, curved dorsally, and concave ( Fig. 11B–C ); stalk with high carina on inner face ending at apex of posterior lobe ( Fig. 11B–C ). Proctiger with dorsolateral dense tufts of setae separated by narrow glabrous carina; posterior face pentagonal ( Fig. 11B–C ). Ventral rim median excavation widely open and shallow; expansions little developed, rounded, strongly setose, just surpassing or level with posterolateral angles in ventral view ( Fig. 11D ). Female genitalia ( Fig. 11E ). Valvifers 8 subtrapezoidal with posterior margin almost straight; inner angle reaching half of valvifers 9; inner margins divergent in distal half and dark. Valvulae 9 exposed. Valvifers 9 strongly setose.

Comments. This species is related to H. trabeculus and H. similis by the paramere golf club like; posterior face of proctiger pentagonal; dorsal rim medially with a small convex expansion, and expansions of ventral rim with setae long and dense on apex ( Figs. 11A–D , 14A–D ; Nunes et al. 2020, Fig. 8A–C ). However, in H. pentagonalis the posterior process of the paramere is curved dorsolaterally (straight in H. similis and H. trabeculus ). The superior process of genital cup is curved with a distal digitiform process on ventral margin (straight in H. trabeculus and curved but without ventral process in H. similis ). The valvifers 8 of these species are very similar, especially the mesial distal excavation V-shaped, but the outer angles of distal margin are more angulated in H. pentagonalis than in the other species.

Etymology. Name refers to the pentagonal form of the posterior face of the proctiger.

Distribution ( Fig. 21B ). BRAZIL: Maranhão, Pará.

Figures

FIGURE 8. Hypoxys flexuosus sp. n. A–D Male, pygophore; A—dorsal view; B—posterior view; C—lateroposterior view; D—ventral view. E—Female, genital plates (Scale = 1mm).

FIGURE 11. Hypoxys pentagonalis sp. n. A–D Male, pygophore; A—dorsal view; B—posterior view; C—lateroposterior view; D—ventral view. E—Female, genital plates (Scale = 1mm).

FIGURE 14. Hypoxys similis sp. n. A–D Male, pygophore; A—dorsal view; B—posterior view; C—lateroposterior view; D—ventral view. E—Female, genital plates (Scale = 1mm).

FIGURE 19. Dorsal and ventral view. H. excavatus sp. n. A–B; H. flexuosus sp. n. C–D; H. nigrosinuatus sp. n. E–F; H. omegoides sp. n. G–H; H. pentagonalis sp. n. I–J; H. rugulosus sp. n. K–L (Scale = 5mm).

FIGURE 21. Distributional map of the new species of the H. quadridens group.