Hypoxys balteatus (Walker, 1868)

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 : 296-297

Key to species of the Hypoxys balteatus group

1 Antennae black ( Figs 4C,D ); margin of mandibular plates black ( Figs 4C,D ). ........................................... ..................................... H. nigroantennatus sp. nov.

– Antennae yellow to reddish brown ( Figs 5E,F ); margin of mandibular plates never black ( Figs 5E,F ). ...................................................................... 2

2 Female. ................................................................... 3

– Male. ..................................................................... 12

3 Posterior margin of valvifers 8 slightly projected caudally, posterolateral angle not reaching middle of valvifers 9 ( Figs 10E , 17E ). ................................... 4

– Posterior margin of valvifers 8 projected caudally, posterolateral angle exceeding middle of valvifers 9 ( Figs 6E , 9A, 18E ). ................................................ 6

4 Posterior angles of valvifers 8 not acuminate, barely reaching base of valvifers 9 ( Fig. 17E ). ................. 5

– Posterior angles of valvifers 8 acuminate, almost reaching middle of valvifers 9 ( Fig. 10E ). ................ .................................................. H. breddini sp. nov.

5 Inner margin of valvifers 8 widely open, valvulae 8 exposed ( Fig. 17E ). ............ H. santarensis sp. nov.

– Inner margin of valvifers 8 shallowly excavated, valvulae 8 barely exposed (see NUNES et al. 2020: Fig. 17C ). ............................... H. balteatus ( Walker, 1868)

6 Valvifers 8 overlapping lateral margin of valvifers 9, excavation of valvifers 8 narrow ( Fig. 9A). .............. ................................................ H. bergrothi sp. nov.

– Valvifers 8 not overlapping lateral margin of valvifers 9, excavation of valvifers 8 broad ( Figs 6E , 8A , 14E ). ....................................................................... 7

7 Bottom of the excavation of valvifers 8 convex ( Figs 6E , 19E ). ................................................................. 8

– Bottom of the excavation of valvifers 8 concave ( Figs 8A , 11A ). ....................................................... 9

8 Laterotergites 9 reaching or just surpassing the level of the angles of abdominal segment VII, and clearly surpassing the band connecting laterotergites 8 ( Fig. 6E ). ............................................. H. amyoti sp. nov.

– Laterotergites 9 below the level of the angles of abdominal segment VII, and just surpassing the band connecting laterotergites 8 ( Fig. 19E ). ...................... ......................................................... H. stysi sp. nov.

9 Posterior margin of each valvifers 8 almost straight; level with distal margin of valvifers 9 ( Fig. 11A ). .... ............................................. H. caquetensis sp. nov.

– Posterior margin of each valvifers 8 concave or slanting; never reaching posterior margin of valvifers 9 ( Fig. 8A ). ........................................................... 10

10 Apices of abdominal segments VII almost level with apices of laterotergites 8 and clearly above the level of laterotergites 9 ( Figs 12E , 18E ). ...................... 11

– Apices of abdominal segments VII clearly below the level of laterotergites 8 and level with laterotergites 9 ( Fig. 8A ). .............................. H. belenensis sp. nov.

11 Valvifers 8 unicolorous, without contrasting black punctures; distal spine of each laterotergite 8 clearly wider at base than long (considering the line of the band connecting laterotergites 8) ( Fig. 18E ). ............ ................................................... H. servillei sp. nov.

– Valvifers 8 with inner margin dark brown and contrasting black punctures; distal spine of each laterotergite 8 almost as long as wide at base (considering the line of the band connecting laterotergites 8) ( Fig. 12E ). .... H. favachae sp. nov.

12 Thorax without brown spots ( Figs 1D , 4B ); pseudosutures without brown spots on outer lateral apex ( Figs 1B, D ). ................................................ 13

– Thorax with four brown spots on meso- and metapleura ( Figs 10F , 16F ); pseudosutures with brown spots on outer lateral apex ( Figs 1F , 3F ). ............................. 14

13 Superior process of genital cup with inner part entire ( Figs 15C,D ); expansions of ventral rim acuminate, just passing level of posterolateral angle of pygophore ( Figs 15A,B ). .................... H. immaculatus sp. nov.

– Superior process of genital cup with inner part bifid ( Figs 7C,D ); expansions of ventral rim long, narrow and clearly surpassing posterolateral angle of pygophore ( Figs 7A,B ). ..... H. aspilogaster sp. nov.

14 Dorsal rim of the pygophore with a lateral projection ( Fig. 17A , arrow). ................................................. 15

– Dorsal rim of the pygophore without a lateral projection ( Fig. 10A ). ........................................... 17

15 Ventral rim expansion without a lateral excavation ( Fig. 17B ); superior process of genital cup undivided ( Fig. 17D ). .......................... H. santarensis sp. nov.

– Ventral rim expansion with a lateral excavation ( Fig. 19C , arrow), superior process of genital cup bifurcated ( Figs 13D , 19D ). ................................. 16

16 Dorsal margin of paramere medially concave ( Figs 13C,D ); expansion of ventral rim long and narrow ( Figs 13A,B ); superior process of genital cup large with a median carina, arms of the bifurcation of different lengths ( Figs 13C,D ). ... H. gaucho sp. nov. – Dorsal margin of paramere sinuous ( Figs 19C,D ); expansion of ventral rim short and broad ( Fig. 19B ); superior process of genital cup narrow and concave, arms of the bifurcation similar in length ( Figs 19C,D ). ........................................... H. stysi sp. nov.

17 Superior process of genital cup lateral, wide, reaching or almost reaching posterolateral angles of pygophore ( Figs 6A , 12A , 20A ). ......................... 18

– Superior process of genital cup short and closer to proctiger than to posterolateral angles of pygophore ( Figs 10C,D ). ........................... H. breddini sp. nov.

18 Superior process of genital cup with inner part bifurcated ( Figs 6D , 12D ). ................................... 19

– Superior process of genital cup with inner part ventrally curved and not bifurcated ( Fig. 18D ). ... 20

19 Dorsal rim separated from proctiger ( Figs 6C,D ); anterior lobe of paramere subrectangular ( Figs 6C,D ); superior process of genital cup narrow and long, reaching the apex of posterolateral angle of pygophore ( Figs 6A,B ). .............. H. amyoti sp. nov.

– Dorsal rim in contact with proctiger ( Figs 12C,D ); anterior lobe of paramere triangular ( Figs 12C,D – green circle); superior process of genital cup broad and short, not reaching the apex of posterolateral angle of pygophore ( Fig. 12A ). ............. H. favachae sp. nov.

20 Dorsal margin of paramere slightly concave ( Figs 14C,D ). ....................... H. hyalinofasciatus sp. nov.

– Dorsal margin of paramere sinuous ( Figs 18C,D , 20C,D ). ................................................................. 21

21 Posterior face of proctiger rounded to subpentagonal ( Figs 18C,D ); expansions of ventral rim rounded distally in ventral view ( Fig. 18B ). ........................... ................................................... H. servillei sp. nov.

– Posterior face of proctiger triangular ( Figs 20C,D ); expansions of ventral rim acuminate in ventral view ( Fig. 20B ). .............................. H. venustus sp. nov.

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 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 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 5A–F.Dorsal and ventral surface.A–B – Hypoxys servillei sp. nov.; C–D – Hypoxys stysi sp. nov.; E–F – Hypoxys venustus 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 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 8A–B.Hypoxys belenensis sp.nov.A – genital plates;B – metasternal process. Scale bars = 1 mm.

Figs 10A–F. Hypoxys breddini sp. nov. A–D – pygophore in dorsal, ventral, posterior and posterolateral view, respectively; E – genital plates; F – metasternal process. Scale bars = 1 mm.

Figs 11A–B. Hypoxys caquetensis sp. nov. A – genital plates; B – metasternal process. Scale bars = 1 mm.

Figs 12A–F. Hypoxys favachae sp. nov. A–D – pygophore in dorsal, ventral, posterior and posterolateral view, respectively; E – genital plates; F – metasternal process. Green circle in Fig. D indicates the anterior lobe of paramere. Scale bars = 1 mm.

Figs 13A–E. Hypoxys gaucho sp. nov. A–D – pygophore in dorsal, ventral, posterior and posterolateral view, respectively; E – metasternal process. Scale bars = 1 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 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 16A–F. Hypoxys nigroantennatus sp. nov. A–D – pygophore in dorsal, ventral, posterior and posterolateral view, respectively; E – genital plates; F – metasternal process. Scale bars = 1 mm.

Figs 17A–F. Hypoxys santarensis sp. nov. A–D – pygophore in dorsal, ventral, posterior and posterolateral view, respectively; E – genital plates; F – metasternal process.Arrow indicates the lateral projection of the dorsal rim. Scale bars = 1 mm.

Figs 18A–F. Hypoxys servillei sp. nov. A–D – pygophore in dorsal, ventral, posterior and posterolateral view, respectively; E – genital plates; F – metasternal process. Scale bars = 1 mm.

Figs 19A–F. Hypoxys stysi sp. nov.A–D – pygophore in dorsal, ventral, posterior and posterolateral view, respectively; E – genital plates; F – metasternal process. Arrow indicates expansion of the ventral rim with a lateral excavation. Scale bars = 1 mm.

Figs 20A–E. Hypoxys venustus sp. nov. A–D – pygophore in dorsal, ventral, posterior and posterolateral view, respectively; E – metasternal process. Scale bars = 1 mm.