Hypoxys hyalinofasciatus, 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 : 305

Hypoxys hyalinofasciatus sp. nov.

( Figs 3E–F , 14A–E , 21B )

Material examined. Hඈඅඈඍඒඉൾ: J, ECUADOR: Sඎർඎආൻටඈඌ: Rivers Napo - Aguarico / 20.x.1942 / Rarijsterborgh col. ( USNM).

Diagnosis. Antennae reddish ( Fig. 3E ). Antennomere II longer than III. Pronotum with smoky stripe reaching posterior margin. Thoracic and abdominal pleurites and sternites with black spots ( Fig. 3F ). Anterior excavation of metasternal process harboring fourth and almost whole third rostral segment ( Fig. 14E ). Male genitalia. Pygophore ( Figs 14A–D ). Posterolateral angles developed, bent inwards, acuminate ( Fig 14A ). Superior process of genital cup elongated, parallel to dorsal rim, and slightly concave; inner (proximal) part truncate and strongly curved, ventral angle with dentiform process; outer (distal) part tonguelike ( Figs 14C,D ). Paramere with two lobes; anterior lobe square, large, and directed to dorsal rim; lateral lobe rounded and large ( Figs 14C,D ). Proctiger with dense short setae on lateral excavation; posterior face triangular ( Figs 14C,D ). Ventral rim with expansions acuminate, narrow, apices curved inwards, ventrolateral side furrowed, dorsal side with brown spot; level or just surpassing posterolateral angles in ventral view ( Fig. 14B ). Female genitalia. Unknown.

Measurements (n = 1). Total length 16.3; head length 1.4; head width 3.3; pronotum width 10.9; abdomen width 8.9; length of antennomeres: I – 0.7; II – 1.9; III – 1.5; IV – 5.7; V: missing; scutellum length 8.0; scutellum width 6.3; pronotum length 3.0.

Differential diagnosis. The species H. hyalinofasciatus sp. nov. shares with H. venustus sp. nov. the ventral rim expansions directed inwards. The species H. hyalinofasciatus sp. nov. shares with H. immaculatus sp. nov., H. nigroantennatus sp. nov., H. santarensis sp. nov., H. servillei sp. nov., and H. venustus sp. nov. the superior process of the genital cup anteriorly truncated with ventral angle developed in a short projection and posterior part tongue-like. However, H. hyalinofasciatus sp. nov., H. nigroantennatus sp. nov. and H. santarensis sp. nov. differ from the others in dorsal margin of the paramere concave (convex margin in H. immaculatus sp. nov., H. servillei sp. nov. and H. venustus sp. nov.). The species H. hyalinofasciatus sp. nov. can be separated from H. nigroantennatus sp. nov. by the black antennae of the latter and from H. santarensis sp. nov. by the shape of the paramere, expansions of ventral rim narrow, long and slightly curved, and posterior face of proctiger triangular.

Etymology. Named for the dark translucent band on the posterior margin of the pronotum (Latin hyalinus = glassy + fasciatus = striped); adjective.

Distribution ( Fig. 21B ). Ecuador: Sucumbíos.

Figures

Figs 3A–F. Dorsal and ventral surface. A–B – Hypoxys favachae sp. nov.; C–D – Hypoxys gaucho sp. nov.; E–F – Hypoxys hyalinofasciatus sp. nov. Scale bars = 5 mm.

Figs 14A–E. Hypoxys hyalinofasciatus sp. nov. A–D – pygophore in dorsal, ventral, posterior and posterolateral view, respectively; E – metasternal process. Scale bars = 1 mm.

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