Hypoxys nigroantennatus Mendonca & Nunes & Fernandes 2021, sp. nov.
Creators: name: Mendonca, Maria Thayane S.
name: Nunes, Benedito M.
name: Fernandes, Jose Antonio M.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Hypoxys
Hypoxys nigroantennatus

description: Hypoxys nigroantennatus sp. nov.   
(Figs 4C–D, 16A–F, 21B)  
 Material examined. Hඈඅඈඍඒඉൾ:J, FRENCH GUIANA: Roura / i.1986 / G.Tavakilian (MNHN).Pൺඋൺඍඒඉൾඌ: FRENCH GUIANA: ♀, 1984 / G. Tavakilian Rec. (MNHN); ♀, 22.vii.1984 / G. Tavakilian Rec.(MNHN); ♀, 5 – 7.vi.2005 / J. E. Eger and M. T. Messenger col. // 04º32.214’ N 052º07.420’ W // (JEE); ♀, 2.ii.1984 / G. Tavakilian Rec. (UFRGS).   
 Diagnosis. Antennae black (Figs 4C,D). Antennomere II longer than III. Apex of mandibular plates with black stripe (Figs 4C,D). Pronotum with smoky stripe reaching posterior margin. Thoracic and abdominal pleurites and sternites with black spots (Figs 16F, 4D). Anterior excavation of metasternal process harboring fourth, third and part of second rostral segment (Fig. 16F). Male genitalia. Pygophore (Figs 16A–D). Posterolateral angles developed, straight, acuminate (Fig. 16A). Superior process of genital cup parallel to dorsal rim, elongated, almost reaching posterolateral angles, concave medially; inner (proximal) part truncate, ventral angle with large dentiform process; outer (distal) part tongue-like and enlarged (Figs 16C,D). Paramere with two lobes; anterior lobe square, large, and directed to base of proctiger; lateral lobe large and rounded (Figs 16C,D). Proctiger with posterior face triangular (Figs 16C,D). Ventral rim with expansions developed, distally acuminate, ventrolateral side with broad striated excavation, dorsal side with light brown spot; clearly surpassing level of posterolateral angles (Figs 16B,C). Female genitalia. Genital plates (Fig. 16E). Valvifers 8 posterior margin with posterolateral angles dentiform and posteriorly directed, inner angle not visible; imaginary line tangent to posterolateral angles not reaching distal margin of valvifers 9; excavation V-shaped. Valvulae 8 visible. Apices of laterotergites 8 clearly above level of apices of abdominal segment VII. Laterotergites 9 surpassing band connecting laterotergites 8; apices slightly below imaginary line tangent to apices of abdominal segment VII.   
 Measurements (n = 5; mm). Total length 18.4 – 19.6; head length 1.8 – 2.3; head width 3.8 – 4.3; pronotum width 10.2 – 11.8; abdomen width 8.7 – 9.8; length of antennomeres: I – 1.0 – 1.2; II – 2.0 – 2.3; III – 1.3 – 1.5; IV – 4.7 – 7.5; V: missing; scutellum length 7.6 – 8.7; scutellum width 5.8 – 7.0; pronotum length 3.4 – 4.1.   
 Differential diagnosis. Hypoxys nigroantennatus sp. nov. differs from the other species of the H. balteatus species group because the antennae and margin of the mandibular plates are black; valvifers 8 excavation is also unique in the group. Also see differential diagnosis of H. hyalinofasciatus sp. nov. for more details.   
 Etymology. Named for the black coloration of the antennae (Latin niger = black, antennatus = bearing antennae); adjective.   
 Distribution (Fig. 21B). French Guiana: Roura.   
 Remark. All setae from proctiger were removed when cleaning the pygophore.
description: Published as part of Mendonca, Maria Thayane S., Nunes, Benedito M. & Fernandes, Jose Antonio M., 2021, Description of fifteen new species of the Hypoxys balteatus species group (Hemiptera: Heteroptera: Pentatomidae), pp. 289-318 in Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) (Acta. Ent. Mus. Natl. Pragae) 61 (1) on page 308, DOI: 10.37520/aemnp.2021.017, http://zenodo.org/record/5177527