Kokeshia baii, Luo & Xie, 2022

Luo, Jiu-Yang & Xie, Qiang, 2022, Taxonomic review of Kokeshia Miyamoto, 1960 from China, with description of ten new species (Hemiptera: Heteroptera: Schizopteridae), European Journal of Taxonomy 802, pp. 1-57 : 8-11

Kokeshia baii sp. nov.

urn:lsid:zoobank.org:act:041A2018-1306-4728-8117-109E54315783

Figs 3–4 , 26B , 28B , 32

Diagnosis

Kokeshia baii sp. nov. can be recognized from other species of Kokeshia by male tergite VIII subdivided into two hemitergites, left hemitergite VIII ( Figs 3D–E, G , 4 A−B) with a long, finger-shaped process, which bearing three thick, spiniform microtrichia at the ventral side of its apex; right hemitergite VIII ( Figs 3E–G , 4C, I ) with an upward curling, rectangular lamellate process above tergite VII, lateral margin of it serrated.

Etymology

The species epithet is derived from and dedicated to its collector, our colleague Prof. Ming Bai (Institute of Zoology, Chinese Academy of Sciences, China).

Material examined

Holotype CHINA • ♂; Hong Kong , Lantau Island, Tei Tong Tsai; 15~ 20 May 2019; Ming Bai leg.; pitfall trap; SYSBM.

Paratypes CHINA • 5 ♂♂; same collection data as for holotype; SYSBM .

Description

Male

MEASUREMENTS (in mm) (male holotype / male paratypes, N = 5). Total body length 1.21 / 1.20–1.28; length of head 0.26 / 0.21‒0.25, maximum width across eyes 0.38 / 0.37–0.39, interocular distance 0.26 / 0.25–0.27; length of antennal segment I 0.07 / 0.06–0.07, segment II 0.07 / 0.06‒0.08, segment III 0.28 / 0.26‒0.29, segment IV 0.32 / 0.31‒0.33; length of labial segment I 0.08 / 0.07–0.08, segment II 0.05 / 0.05‒0.06, segment III 0.05 / 0.04‒0.05, segment IV 0.10 / 0.10‒0.13; middle length of pronotum 0.37 / 0.36‒0.39, length of collar 0.06 / 0.06–0.07, humeral width 0.63 / 0.62‒0.64; length of forewing 0.97 / 1.01–1.09; length of fore femur 0.30 / 0.29–0.30, fore tibia 0.33 / 0.31‒0.33, fore tarsus 0.12 / 0.11–0.13; length of middle femur 0.32 / 0.32‒0.35, middle tibia 0.33 / 0.31‒0.34, middle tarsus 0.11 / 0.12‒0.13; length of hind femur 0.36 / 0.37–0.38, hind tibia 0.54 / 0.51–0.57, hind tarsus 0.17 / 0.17–0.18; greatest width of abdomen 0.55 / 0.53‒0.55.

MACROPTEROUS. Small sized (about 1.28– 1.28 mm).

COLORATION. Body brown, appendages yellowish brown ( Fig. 3A‒C ). Surface, vestiture and general structures as in generic description, except mentioned below.

HEAD. Interocular distance 0.68–0.71 × length of maximum width across eyes.

THORAX. Humeral width 1.64‒1.75 × as long as middle length of pronotum. Venation of forewing in accordance with general pattern of genus. C+Sc, R+M, R and basal portion of 1An distinctly darker than wing surface, other veins darker than wing surface ( Fig. 26B ).

ABDOMEN. Tergite VII and sternite VII slightly asymmetrical. Tergite VIII subdivided into two hemitergites, left hemitergite VIII ( Figs 3D–E, G , 4 A−B) with long, finger-shaped process, which bearing three thick, spiniform microtrichia at ventral side of its apex, with numerous microtrichia on surface. Basal visible part of left hemitergite VIII with numerous small projections and microtrichia ( Figs 3D–E, G , 4A–B ). Right hemitergite VIII with upward curling, approximately rectangular, lamellate process above tergite VII, lateral margin serrated ( Figs 3E–F , 4C, I ).

GENITALIA. Pygophore slightly asymmetrical, dorsal surface with rows of microtrichia, posterior area with relatively long setae. Parameres strongly asymmetrical, left paramere ( Figs 3E , 4F‒G ) with broadly rounded laminate extension directed dorsal near base, and with flattened and elongate distal projection somewhat curved inward; right paramere ( Figs 3E , 4D‒E ) with flattened and blunt distal projection. Apical portion of phallus ( Figs 3D‒E , 4H ) tubular, long, forming more than one and a half coils outside of pygophore.

Female

Unknown.

Distribution

China: Hong Kong ( Fig. 32 ).

Figures

Fig. 3. Kokeshia baii sp. nov. A‒C. Habitus, holotype, ♂ (SYSBM). A. Dorsal view. B. Lateral view. C. Ventral view.D. Pregenital abdomen and genitalia, dorsal view, paratype, ♂ (SYSBM). E‒G. Scanning electron micrographs of genitalia, paratype, ♂ (SYSBM). E. Dorsal view. F. Right side, dorsal view. G. Left side, dorsal view. Abbreviations: see Material and methods.

Fig. 4. Kokeshia baii sp. nov., segment VIII and genitalia, paratype, ♂ (SYSBM). A‒B. Left hemitergite VIII. A. Dorsal view. B. Left lateral view. C, I. Right hemitergite VIII, two different aspects. D‒E. Right paramere, two different aspects. F‒G. Left paramere, two different aspects. H. Phallus.

Fig. 26. Forewings of Kokeshia spp., dorsal views. A. K. acutiformis sp. nov., paratype, ♂ (SYSBM). B. K. baii sp. nov., paratype, ♂ (SYSBM). C. K. bui sp. nov., paratype, ♂ (SYSBM). D. K. caii sp. nov., paratype, ♂ (SYSBM). E. K. drepanoides sp. nov., paratype, ♂ (SYSBM). F. K. hilli sp. nov., paratype, ♂ (SYSBM). G. K. hsiaoi Ren & Zheng, 1992, ♂ (SYSBM). H. K. pengae sp. nov., paratype, ♂ (SYSBM).

Fig. 28. Pregenital abdomen and genitalia of Kokeshia spp., dorsal views. A. K. acutiformis sp. nov., paratype, ♂ (SYSBM). B. K. baii sp. nov., paratype, ♂ (SYSBM). C. K. bui sp. nov., paratype, ♂ (SYSBM). D. K. caii sp. nov., paratype, ♂ (SYSBM). Abbreviations: see Material and methods.

Fig. 32. Distribution map of Kokeshia spp. Red open circle = K. acutiformis sp. nov.; red solid circle = K. baii sp. nov.; blue open triangle = K. bui sp. nov.; blue open circle = K. caii sp. nov.; yellow open circle = K. drepanoides sp. nov.; yellow solid circles = K. esakii Miyamoto, 1960; red open triangle = K. hilli sp. nov.; blue solid squares = K. hsiaoi Ren & Zheng, 1992; red open square = K. martensi Štys, 1985; yellow solid square = K. oroszi Rédei, 2008; yellow open triangle = K. pengae sp. nov.; green open hexagon = K. redeii sp. nov.; yellow open square = K. renae sp. nov.; yellow solid triangle = K. similis Štys, 1985; blue solid triangle = K. stysi Rédei, 2008; blue open square = K. weirauchae sp. nov.; red solid triangles = K. xiei Rédei, Ren & Bu, 2012; red solid square = K. zhengi Rédei, Ren & Bu, 2012.