Hypoxys amyoti, 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

Hypoxys amyoti sp. nov.

( Figs 1A–B , 6A–F , 21A )

Material examined. Hඈඅඈඍඒඉൾ: J, FRENCH GUIANA: 1899 / R. Oberthur BAR coll. ( MNHN). Pൺඋൺඍඒඉൾඌ: SURINAME: PඈඐൺΚΚൺ: J, 12.iv.1972 / G. F. Mees ( RMNH); ♀, same data holotype ( MNHN).

Diagnosis. Antennae brown. Antennomere II longer than III. Smoky stripe on pronotum not reaching posterior margin of pronotum. Thoracic and abdominal pleurites and sternites with black spots ( Fig. 1B ). Anterior excavation of metasternal process harboring fourth and almost whole third rostral segment ( Fig. 6F ). Male genitalia. Pygophore ( Figs 6A–D ). Posterolateral angles developed, bent inwards, acuminate ( Fig. 6A ). Superior process of genital cup trilobate, curved, elongated, parallel to dorsal rim and almost reaching apex of posterolateral angle; inner part bifid, forming two small lobes; outer part tapering ( Figs 6A,C,D ). Paramere with two lobes; anterior lobe square, curved upwards; lateral lobe rounded ( Figs 6C,D ). Proctiger with dense crown of setae; posterior face subpentagonal and short ( Figs 6C,D ). Expansions of ventral rim acuminate, broadly excavated ventrolaterally,

with brown spot dorsally; barely surpassing level of pos-

terolateral angles ( Figs 6A,B ). Female genitalia. Genital plates ( Fig. 6E ). Posterior margin of each valvifer 8 with dentiform posterolateral angles, directed posteriorly; inner angles dentiform, reaching valvifers 9; imaginary line tangent to posterolateral angles reaching distal margin of valvifers 9; inner margin slightly projected posteriorly, leaving bottom of excavation convex; excavation U-shaped. Valvulae 8 barely visible. Apices of laterotergites 8 clearly above level of apices of abdominal segment VII. Laterotergites 9 surpassing band connecting laterotergites 8; apices just passing imaginary line tangent to apices of abdominal segment VII.

Measurements (n = 3; mm). Total length 15.9–16.3; head length 1.6–2.0; head width 3.4–3.5; pronotum width 10.0–10.2; abdomen width 8.1–8.2; length of antennomeres: I – 0.6–0.9; II – 1.6–1.7; III – 0.9–1.1; IV – 3.5–3.7; V – 3.9; scutellum length 6.8–7.2; scutellum width 5.6–5.8; pronotum length 3.3–3.6.

Differential diagnosis. This species resembles H. aspilogaster sp. nov. and H. stysi sp. nov. in the shape of the trilobate superior process of genital cup, but the shape of the paramere and the posterior face of the proctiger separate them. The female genitalia of H. amyoti sp. nov. and H. stysi sp. nov. are very similar showing the bottom of the excavation of valvifers 8 convex. Both species can be hardly separated using only females; the length of laterotergite 9 seems to be the only character with visible difference.

Etymology. Named after Charles Jean-Baptiste Amyot (1799–1866), the great French entomologist and one of the first researchers dedicated to the study of Heteroptera. Distribution ( Fig. 21A ). Suriname: Powakka; French Guiana.

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 6A–F.Hypoxys amyoti sp. nov.A–D – pygophore in dorsal, ventral, posterior and posterolateral view, respectively; E – genital plates; F – metasternal process. Abbteviations: dr – dorsal rim; gp – superior process of the genital cup; lat 8 – laterotergites 8; lat 9 – laterotergites 9; pa – parameres; proc – proctiger; vf 8 – valvifers 8; vf 9 – valvifers 9; vr – ventral rim; vre – ventral rim expansions; x – tenth segment. Scale bars = 1 mm.

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