Hypoxys triangularis 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 triangularis

description: Hypoxys triangularis (Dallas, 1851) comb. nov.
(Figs. 9 A–E; 19 E–F; 22)
Edessa triangularis Dallas, 1851: 320; Walker, 1868: 425; Stål, 1872: 60; Lethierry & Severin, 1893: 195 (catalog); Kirkaldy, 1909: 165 (catalog)
Edessa scabriventris Stål, 1859: 231; Stål, 1860: 28; Walker, 1868: 429; Stål, 1872: 56; Lethierry & Severin, 1893: 194 (catalog); Kirkaldy, 1909: 164 (catalog) syn. nov.
Edessa leprosula Breddin, 1904a: 144; Bergroth, 1908: 179; Kirkaldy, 1909: 159 (catalog) syn. nov.
Lectotype female. Edessa triangularis. Colombia (BMNH). Examined.
Lectotype female. Edessa scabriventris. Rio de Janeiro, Brasil (NHRM). Examined.
Lectotype female. Edessa leprosula. Rio Grande do Sul [Brazil] (SDEI). Designated by Gaedike (1971: 90, by use of “ Holotypus ”). Examined.
Material examined. FRENCH GUIANA: ♀ 7–VII–951 (MZUSP); BRAZIL. Pernambuco: ♂ ♀ Recife, IV– V–1991, K. G. Rehn, in pitangueira (UFRG); Bahia: ♀ From Rodie, EPVanDuzee collection, Edessa triangularis Dallas, 1851 Comp. w. TYPE Fernandes, JAM 1999, Edessa scabriventris Stål, 1859 Comp. w. TYPE Fernandes, JAM 1999, Edessa leprosula Breddin, 1904 Comp. w. TYPE Fernandes, JAM 1999 (CAS); Alagoas: ♂ ♀ Maceió, 10–VI–2005, in Pitangueira, Lima, M. S. (UFRG); Espírito Santo: ♂ Santa Teresa, VIII–1992, Argel. de Oliveira M. M. (UFRG); Rio de Janeiro: ♂ Corcovado, 6–XII–1954, Dmytro Zajciw. (JEE); ♂ Corcovado, 27–XII–1954, Dmytro Zajciw. (JEE); Paraná: ♂ ♀ Curitiba, XI–37, Coll. Claretiano (MZUSP); Santa Catarina: ♀ Nova Teu- tônia, 300–500m, XII–1971, 27º11’B, 52º23’L, Fritz Plaumann (UFRG); ♂ Imbituba, II–1994, Campos, L. A. (UFRG); Rio Grande do Sul: 5♂ ♀ Canguçu, Coxilha do Fogo, 10–VIII–2003, 3º guarda–chuva, Bunde e Silva col. (UFRG); no data: ♂ 01004.
Measurements. total length: 14.0–20.1; head length: 1.9–2.8; head width: 3.0–4.0; pronotal width: 8.4–13.0; abdominal width: 7.6–10.4; length of antennal segments. I: 0.7–1.1; II: 0.8–1.9; III: 1.3–1.8; IV: 2.6–4.9; V: 3.0–4.4; interocular distance: 1.6–2.0; scutellum length: 6.3–9.9; scutellum width: 4.9–7.1; pronotal length: 3.1–4.4.
Diagnosis. head and pronotal disc green, sometimes with small yellow calli (Fig. 19E); scutellum and corium ferruginous (Fig. 19E). Posterior stripe of pronotum reddish brown; punctures concolorous to light brown on disc and black on posterior stripe (Fig. 19E). Anterior part of scutellum with punctures on dark spots. Connexivum green to reddish brown. Body ventrally with many yellow little calli (Fig. 19F). Cicatrices of pronotum with concolorous punctures delimiting anterior sulci. Anterolateral margin of pronotum not punctured. Scutellum with apex punctured. Corium with black spot of costal margin reaching approximately 1/3 of corial vein extension. Dorsal surface of abdomen yellow with brown transverse stripes (Fig. 19F). Connexivum with black punctures concentrated in excavated areas separated by undeveloped callosity. Connexival segments with posterior margin dark including segment VII (Fig. 19E). Body ventrally coarsely rugose. Male (Fig. 9 A–C). Pygophore with dorsal rim widely excavated (Fig. 9A). Superior process of genital cup rounded, small, concave (Fig. 9B). Paramere elongate, anterior lobe truncated, posterior lobe rounded and barely developed (Fig. 9B). Proctiger with narrow, shallow transverse excavation; excavation densely setose; posterior face ogival and concave (Fig. 9B). Ventral rim central excavation shallowly excavated; expansion small and rounded almost reaching level of posterolateral angles in ventral view (Fig. 9C). Female (Fig. 9D). Gonocoxites 8 usually with some yellow calli; posterior margin sinuous, lateral angle with a small tooth adjacent to a small yellow conical protuberance. Gonapophyses 8 barely exposed.
Comments. Dallas (1851) described Edessa triangularis but did not related it to any species. Stål (1859) cited affinities between E. scabriventris and E. quadridens. Breddin (1904a) described E. leprosula based on a female from Rio Grande do Sul (Brazil) and indicated its similarity with E. quadridens and E. scabriventris. In this work, the species E. scabriventris and E. leprosula are synonymized with H. triangularis. The names leprosula and scabriventris are related to small whitish callosities that covers the body of these species, which gives a granular appearance, such condition is unique in Edessinae. However, this characteristic varies among populations, and may even be absent. The male is described here for the first time.
Distribution (Fig. 22). FRENCH GUIANA; BRAZIL: Pernambuco, Bahia, Alagoas, Espírito Santo, Rio de Janeiro, Paraná, Santa Catarina, Rio Grande do Sul.
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 420-422, DOI: 10.11646/zootaxa.4742.3.1, http://zenodo.org/record/3677869