Carventinae

Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2020, A new apterous genus of Carventinae from Hainan, China (Hemiptera: Heteroptera: Aradidae), Zootaxa 4885 (2), pp. 235-248 : 247

Key to the apterous genera of Carventinae from Hainan Province, China

1. Spiracles II lateral and visible from above............................... .. Caiaptera Bai & Heiss, 2011 ( Figs.31, 32 )

- Spiracles II ventral.................................................................................... 2

2. Meso- and metanota fused to mtg I+II at middle, with a median longitudinal smooth ridge, flattened from anterior margin of mesonotum to anterior margin of tergal plate................... Notoplocaptera Usinger & Matsuda, 1959 ( Figs. 33, 34 )

- Metanotum separated from mtg I and II by thin transverse suture................................................ 3

3. Spiracles III lateral and visible from above................................................................. 4

- Spiracles III ventral or sublateral......................................................................... 5

4. Anterolateral angles of pronotum roundly produced over collar, median thoracic sclerite bottle-shaped, surface smooth, vltg VII of male with a small shiny callus near spiracle VII, pygophore narrowly elongate posteriorly.................................................................................... Paralibiocoris Bai, Heiss & Cai, 2018 ( Figs. 35, 36 )

- Anterolateral angles of pronotum truncate not produced over collar, median thoracic sclerite of conical shape, surface granulate with longitudinal sulcus; vltg VII of male with large oblique shiny raised callus across whole vltg, pygophore shorter, rounded posteriorly............................................... Neolibiocoris Bai, Heiss & Cai , gen. nov. ( Figs. 1–15 )

5. Spiracles II to IV ventral, V to VII lateral and visible from above........ Crassocoris Bai, Heiss & Cai, 2007 ( Figs. 37, 38 )

- Spiracles II ventral, III to IV sublateral, IV faintly visible from above, V to VII lateral and visible from above............ 6

6. Lateral margins of thoracic segments not incrassate, each showing two parallel layers in lateral view......................................................................... Rotundocoris Bai, Heiss & Cai, 2019 ( Figs. 16-30 , 39, 40 )

- Lateral margins of thoracic segments incrassate, each showing three parallel layers in lateral view............................................................................................ Oblongocoris Bai, Heiss & Cai, 2020

Figures

FIGURES 31–40. 31–32, Caiaptera picea Bai & Heiss, 2011; 33–34, Notoplocaptera hainanensis Heiss & Nagashima, 2008; 35–36, Rotundocoris stenonotum Bai, Heiss & Cai, 2019; 37–38, Crassocoris hsiaoi Bai, Heiss & Cai, 2007; 39–40, Paralibiocoris heissi Bai, Heiss & Cai, 2018. 31, 33, 35, 37, 39, dorsal view; 32, 34, 36, 38, 40, ventral view. Scale bar = 1 mm.

FIGURES 1–4. Neolibiocoris obtusus gen. nov., sp. nov. 1–2, holotype male; 3–4, paratype female. 1, 3, dorsal view; 2, 4, ventral view. Scale bar = 1 mm.

FIGURES 5–15. Neolibiocoris obtusus gen. nov., sp. nov. 5–10, different body parts; 11–12, pygophore in dorsal and lateral views; 13–15, right paramere. 5, 6, 9, 10, holotype male; 7, 8, paratype female; 5, 7, 9, 11, dorsal view; 6, 8, 10, ventral view. Scale bars = 0.5 mm for 5–12; 0.1 mm for 13–15.

FIGURES 16–19. Rotundocoris pyramidalis sp. nov. 16–17, holotype male; 18–19, paratype female. 16, 18, dorsal view; 17, 19, ventral view. Scale bar = 1 mm.

FIGURES 20–30. Rotundocoris pyramidalis sp. nov. 20–25, different body parts; 26–27, pygophore in dorsal and lateral views; 28–30, right paramere. 20, 21, 24, 25, holotype male; 22, 23, paratype female; 20, 22, 24, 26, dorsal view; 21, 23, 25, ventral view. Scale bars = 0.5 mm for 20–27; 0.1 mm for 28–30.