Hypoxys immaculatus, 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 : 308

Hypoxys immaculatus sp. nov.

( Figs 4A–B , 15A–E , 21B )

Material examined. Hඈඅඈඍඒඉൾ: J, BOLIVIA: Bൾඇං: Las Juntas / xii.1913 / Steinbach, Coll. ( USNM).

Diagnosis. Antennae reddish ( Fig. 4A ). Antennomere III longer than II. Pronotum with smoky stripe not reaching posterior margin. Thoracic and abdominal pleurites and sternites without black spots ( Fig. 4B ).Anterior excavation of metasternal process harboring fourth and almost whole third rostral segment ( Fig. 15E ). Male genitalia. Pygophore ( Figs 15A–D ). Posterolateral angles little developed, bent inwards ( Fig. 15A ). Superior process of genital cup thick, parallel to dorsal rim, elongated, almost reaching posterolateral angles; inner (proximal) part truncate and curved, ventral angle with dentiform process; outer (distal) part tongue-like ( Figs 15A,C,D ). Paramere with two lobes; anterior lobe triangular, and directed to base of proctiger; lateral and dorsal lobes rounded and short ( Figs 15C,D ). Proctiger with dorsal tufts of setae on lateral excavation and margin of posterior face; posterior face triangular ( Figs 15C,D ). Ventral rim with expansions triangular, distally rounded, ventrolateral side gently impressed, dorsal side without dark spot; clearly surpassing level of posterolateral angles ( Fig. 15B ). Female genitalia. Unknown.

Measurements (n = 1; mm). Total length 15.8; head length 1.7; head width 3.2; pronotum width 11.0; abdomen width 8.1; length of antennomeres: I – 0.9; II – 1.3; III – 1.7; IV – 3.9; V – 4.0; scutellum length 7.4; scutellum width 5.6; pronotum length 3.2.

Differential diagnosis. Hypoxys immaculatus sp. nov. and H. aspilogaster sp. nov. are the only species of the group without dark spots on ventral surface, but the structure of the superior process of genital cup groups together H. immaculatus sp. nov., H. hyalinofasciatus sp. nov., H. nigroantennatus sp. nov., H. santarensis sp. nov., H. servillei sp. nov., and H. venustus sp. nov. See differential diagnosis of H. hyalinofasciatus sp. nov. for more details. Etymology. Named for the absence of black marks on ventral side of the body (Latin immaculatus = spotless); adjective.

Distribution ( Fig. 21B ). Bolivia: Beni.

Figures

Figs 4A–F. Dorsal and ventral surface.A–B – Hypoxys immaculatus sp. nov.; C–D – Hypoxys nigroantennatus sp. nov.; E–F – Hypoxys santarensis sp. nov. Scale bars = 5 mm.

Figs 15A–E. Hypoxys immaculatus 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.