Hypoxys trabeculus Nunes & Campos & Mendonca & Cunha & Fernandes 2020, comb. nov.
Creators: name: Nunes, Benedito Mendes
name: Campos, Lourival Dias
name: Mendonca, Maria Thayane Da Silva
name: Cunha, Eduardo Victor De Paiva
name: Fernandes, Jose Antonio Marin
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Hypoxys
Hypoxys trabeculus

description: Hypoxys trabeculus (Breddin, 1907) comb. nov.
(Figs. 8 A–E; 19 C–D; 21)
Edessa trabecula Breddin, 1907: 331; Kirkaldy, 1909: 368 (catalog)
Lectotype male. Suriname (SDEI). Designated by Gaedike (1971:101). Examined. Gaedike also indicated paralectotypes, mention quantity but did not mentioned gender of them.
Material examined. SURINAME. ♀ Mapana area, Camp. 8, LBB, 29–May–1963, P. H. V. Doesburg Jr. (MNHN); ♂ 19, P. H. v. Doesburg Jr., Edessa trabecula Breddin, 1907 Comp. w. TYPE Fernandes, JAM 1999 (RMNH); FRENCH GUIANA. Saint Laurent du Maroni: ♀ Mana River, May–1917, Compared with TYPE Edessa trabecula Breddin, Sailer & Lutz 1957 (USNM); BRAZIL. Roraima: ♂ Caracaraí, Vila Calcubi, trilha do INPA, 07–IX–2011, 01º01’45,2’’S 62º05’12,2’’W, Biffi, G. & Prado, L. R. col. (MZUSP); Amazonas: ♂ Manaus, km 60 INPA, 17–19–Mars–1986, G. Couturier Coll., Pastagem (prairie) (INPA); ♀ INPA—Est. Aleixo, 20–IX–1977, Altamiro coll. (INPA); Pará: ♂ Óbidos, VIII–78, A. C. Domingos, Edessa trabecula Breddin, 1907 Comp. w. TYPE Fernandes, JAM 1999 (RMNH); ♂ ♀ Óbidos, bx./ Amazonas, Museu Dirings, Fev–1961 (MZUSP); ♂ Juruti, 6–VI–2007, Sítio Barroso, S 02º 27’ 51.4’’ W 56º 00’ 08.6”, Manual noturna, Lo-Man-Hung, N. F., Juru 006213 (UFRG); ♀ Santarém, VII–26–1930, C. H. Townsend, Compared with TYPE Edessa trabecula Breddin, Sailer & Lutz 1957 (USNM); ♀ Jacareacanga, X–1959, M. Alvarenga leg, Edessa trabecula Breddin, 1907 Comp. w. TYPE Fernandes, JAM 1999 (RMNH); ♂ Seca [Pará, Serra do Cachimbo] 0326 (UFRG); Rondônia: ♀ V. Rondonia, 378 Km S de P. Velho, 25–I–9–II–1961, Pereira e A. Machado (MZUSP); Mato Grosso: ♂ Sinop, 09–V–2011, Col. Barreto, M. R. (UFMT); same data: ♀ 10–V–2011 (UFMT); ♀ Cotriguaçu, 08–XII–2009, Col. Barreto, M. R. (UFMT); BOLIVIA. Beni: ♀ Gebiet, Guayaramerin 150 m, 19–5–1954, leg. W. Forster (ZSM).
Measurements. total length: 16.6–19.6; head length: 2.0–2.4; head width: 3.3–3.7; pronotal width: 10.1–11.8; abdominal width: 9.1–10.4; length of antennal segments. I: 0.9–1.1; II: 1.8–2.4; III: 1.2–1.8; IV: 3.4–5.7; V: 5.2–5.8; interocular distance: 1.3–1.7; scutellum length: 7.4–8.6; scutellum width: 5.6–6.6; pronotal length: 3.3–3.9.
Diagnosis. Anterolateral margin of pronotum with complete solid black stripe. Cicatrices with brown punctures delimiting anterior sulci (Fig. 19C). Anterolateral margin with some brown punctures. Male (Fig. 8 A–C). Pygophore with dorsal rim sinuous, shallowly excavated (Fig. 8A). Superior process of genital cup laminar with outer corner protruding; adjacent to dorsal rim (Fig 8B). Paramere elongated, club-like, strongly bent laterally; inner margin with conspicuous carina ending at rounded apex of bent part (Fig. 8B); anterior face of bent part strongly concave. Proctiger with large tufts of setae separated by small carina; posterior face pentagonal (Fig. 8B) and transversly concave, base of the setae on lateral margin projected (but not visible due the setae). Ventral rim central excavation widely and shallowly excavated; expansions well-developed. tumid and rounded, surpassing level of posterolateral angles in ventral view, setose (Fig. 8C). Female (Fig. 8D). Gonocoxites 8 slightly convex, posterior margin angulate; inner angle covering almost half of gonocoxites 9; sutural border slightly divergent in distal half. Gonapophyses 8 barely exposed.
Comments. Breddin (1907) said that E. trabecula is similar to E. quadridens mainly because of the ratio between eye width and pronotum length; however, this is a not reliable character. A variation among specimens was observed and the posterior margin of gonocoxites 8 can be less slanting than shown (Fig. 8D). Females of H. trabeculus have a characteristic gonocoxite 8 with its angulate posterior margin and sutural border divergent on distal half (Fig. 8D). The other female with subrectangular gonocoxites 8 is H. claricolor, but the inner angle of gonocoxite 8 in H. claricolor is rounded and sutural border excavated in “U” (Fig. 3D), also laterotergites 9 have distal angle rounded (acute in H. trabeculus). Males of H. trabeculus (Fig. 8B) have paramere club-like and projected laterally like in H. claricolor (Fig. 3B). But, in H. trabeculus inner carina is higher than in H. claricolor and reaches the apex of the paramere (Fig. 8B); superior process of genital cup is laminar and straight; expansions of ventral rim are tumid, and posterior face of the proctiger is wider than long (Fig. 8B). In H. claricolor the inner carina is low and ends up in the middle of the paramere; superior process is narrow, curved with a median projection; expansions of ventral rim are flat, and posterior face of the proctiger is longer than wide (Fig. 3B).
Distribution (Fig. 21). SURINAME; FRENCH GUIANA: Saint Laurent du Maroni; BRAZIL: Roraima, Amazonas, Pará, Rondônia, Mato Grosso; BOLIVIA: Beni.
description: Published as part of Nunes, Benedito Mendes, Campos, Lourival Dias, Mendonca, Maria Thayane Da Silva, Cunha, Eduardo Victor De Paiva & Fernandes, Jose Antonio Marin, 2020, Revision of Hypoxys Amyot & Serville, 1843 stat. rest. (Heteroptera Pentatomidae), pp. 401-441 in Zootaxa 4742 (3) on pages 418-419, DOI: 10.11646/zootaxa.4742.3.1, http://zenodo.org/record/3677869