Hypoxys aspilogaster, Mendonca & Nunes & Fernandes, 2021

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), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 61 (1), pp. 289-318 : 297-300

Hypoxys aspilogaster sp. nov.

( Figs 1C–D , 7A–F , 21A )

Material examined. Hඈඅඈඍඒඉൾ: J, BRAZIL: Rංඈ ൽൾ Jൺඇൾංඋඈ: Parna [Parque Nacional] / Serra dos Órgãos, Teresopólis / 1956 / Zajciv col. ( MNRJ). Pൺඋൺඍඒඉൾඌ: BRAZIL: Mංඇൺඌ Gൾඋൺංඌ: ♀, João Monlevade, Itabira / 17.ii.1939 / P. Balch - Bath ( ZMUC). Eඌඉටඋංඍඈ Sൺඇඍඈ: J, Reserva florestal CVRD, Linhares / 17.vi.1987 / J. S. Santos ( UFES); ♀, same data, 10.x.1987 ( UFES); J, same data, 01.xi.1988 ( UFES); J, same data, 24.viii.1989; ( UFRGS); ♀, Fibria, Linhares ( UFES); ♀, same data ( UFRGS); J, Parque Sooretama, Linhares / D. Zajciv leg. ( MNRJ).

Diagnosis. Antennae brown. Antennomere II longer than III. Pronotum with smoky stripe not reaching posterior margin. Thoracic and abdominal pleurites and sternites without black spots ( Fig. 1D ). Anterior excavation of metasternal process harboring fourth and third rostral segment ( Fig. 7F ). Male genitalia. Pygophore ( Figs 7A–D ). Posterolateral angles developed, bent inwards ( Fig. 7A ). Superior process of genital cup trilobate (inner part notched, forming two long, digitiform lobes; outer part tapering), almost straight, elongated, parallel to dorsal rim, and almost reaching posterolateral angle ( Figs 7A,C,D ). Paramere with two lobes; anterior lobe narrow and triangular, directed to base of proctiger; lateral lobe large, triangular and straight ( Figs 7C,D ). Proctiger with narrow tufts of setae on lateral excavation; posterior face triangular ( Figs 7C,D ). Ventral rim with expansions developed, distally rounded, vent- rolateral side broadly excavated, dorsal side with brown spot; clearly surpassing level of posterolateral angles ( Fig. 7B ). Female genitalia. Genital plates ( Fig. 7E ). Valvifers 8 posterior margin with posterolateral angles dentiform and posteriorly directed, inner angles blunt and not projected; imaginary line tangent to posterolateral angles reaching distal margin of valvifers 9; inner margin not projected posteriorly; excavation V-shaped. Valvulae 8 barely exposed. Apices of laterotergites 8 slightly above level of apices of abdominal segment VII. Laterotergites 9 passing band connecting laterotergites 8; apices slightly above imaginary line tangent to apices of abdominal segment VII.

Measurements (n = 9; mm). Total length 17.1–19.2; head length 1.6–1.9; head width 3.5–4.0; pronotum width 11.4–12.6; abdomen width 9.0–10.0; length of antennomeres: I – 0.9–1.0; II – 1.8–2.0; III – 1.5; IV – 4.3–4.4; V – 4.9; scutellum length 8.1–8.9; scutellum width 5.9–6.8; pronotum length 3.2–3.7.

Differential diagnosis. For the males, see differential diagnosis of H. amyoti sp. nov. This species resembles H. belenensis sp. nov., H. favachae sp. nov. and H. servillei sp. nov. due to posterior margin of valvifers 8 concave or slanting, and never reaching posterior margin of valvifers 9. But H. aspilogaster sp. nov. can be separated by inner angle of posterior margin blunt, not dentiform like in the other species and by central excavation V- and not U-shaped like in the other species. The species H. belenensis sp. nov. has the apices of abdominal segment VII clearly below the level of the apices of laterotergites 8 and almost level with the apices of laterotergites 9, whereas H. aspilogaster sp. nov., H. favachae sp. nov. and H. servillei sp. nov. have the apices of abdominal segment VII almost level with the apices of laterotergites 8 and clearly above the level of laterotergites 9. Additionally, H. favachae sp. nov. differs from H. servillei sp. nov. in the distal spine of laterotergites 8 a little bit narrower at base; and margin of valvifers 8 dark.

Etymology. Named for the absence of contrasting black spots on ventral side of the body (Gr. aspilos, spotless).

Distribution ( Fig. 21A ). Brazil: Minas Gerais, Espírito Santo and Rio de Janeiro.

Figures

Figs 1A–F. Dorsal and ventral surface. A–B – Hypoxys amyoti sp. nov.; C–D – Hypoxys aspilogaster sp. nov.; E–F – Hypoxys belenensis sp. nov. Scale bars = 5 mm.

Figs 7A–F. Hypoxys aspilogaster sp. nov. A–D – pygophore in dorsal, ventral, posterior and posterolateral view, respectively; E – genital plates; F – metasternal process. Green line in Fig. A indicates that paramere is straight. Scale bars = 1 mm.

Figs 21A–B. Occurrence maps of the sixteen new species of the Hypoxys balteatus species group.