Kokeshia bui, 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 : 12-15

Kokeshia bui sp. nov.

urn:lsid:zoobank.org:act:2FE947B4-B43C-4039-9372-2F0BC071C017

Figs 5–6 , 26C , 28C , 32

Diagnosis

Kokeshia bui sp. nov. can be recognized from other species of Kokeshia by male hemitergite VIII ( Figs 5D‒G , 6A‒B ) elongate, the left lateral margin slightly concave from about ⅓ of its apex, the posterior portion with an elongated triangular process, surpassing posterior margin of pygophore, right lateral margin of it with about nine subparallel, thick spiniform microtrichia.

Etymology

The species epithet is derived from and dedicated to Prof. Wenjun Bu (Institute of Entomology, Nankai University, China), recognizing his contributions to the study of taxonomy, phylogeny and biogeography of Heteroptera , and the taxonomy of Cecidomyiidae ( Diptera ).

Material examined

Holotype CHINA • ♂; Yunnan Province, Lincang City, Cangyuan County, Banhong Town ; 23°13′53.8″ N, 99°2′42.94″ E; ca 920 m a.s.l.; 4 Aug. 2019; Qiang Xie and Yu Men leg.; light trap; SYSBM.

Paratypes CHINA • 10 ♂♂; same collection data as for holotype; SYSBM .

Description

Male

MEASUREMENTS (in mm) (male holotype / male paratypes, N = 5). Total body length 1.20 / 1.17–1.24; length of head 0.20 / 0.19–0.21, maximum width across eyes 0.41 / 0.37‒0.39, interocular distance 0.26 / 0.25‒0.26; length of antennal segment I 0.07 / 0.07–0.08, segment II 0.07 / 0.07‒0.08, segment III 0.27 / 0.24‒0.29, segment IV 0.31 / 0.28‒0.35; length of labial segment I 0.07 / 0.07, segment II 0.06 / 0.04‒0.05, segment III 0.05 / 0.03‒0.05, segment IV 0.11 / 0.10‒0.11; middle length of pronotum 0.35 / 0.34‒0.36, length of collar 0.06 / 0.06–0.07, humeral width 0.62 / 0.60‒0.64; length of forewing 0.95 / 0.88–1.00; length of fore femur 0.28 / 0.27–0.30, fore tibia 0.32 / 0.31‒0.32, fore tarsus 0.12 / 0.11–0.14; length of middle femur 0.33 / 0.29‒0.34, middle tibia 0.31 / 0.31‒0.34, middle tarsus 0.12 / 0.11‒0.12; length of hind femur 0.37 / 0.36–0.38, hind tibia 0.51 / 0.47–0.55, hind tarsus 0.18 / 0.17–0.19; greatest width of abdomen 0.51 / 0.51‒0.54.

MACROPTEROUS. Small sized (about 1.17‒1.24 mm).

COLORATION. Body brown, appendages yellowish brown ( Fig. 5A‒C ). Surface, vestiture and general structures as in generic description, except mentioned below.

HEAD. Interocular distance 0.63–0.68 × length of maximum width across eyes.

THORAX. Humeral width 1.67‒1.78 × 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. 26C ).

ABDOMEN. Tergite VII and sternite VII slightly asymmetrical. Tergite VIII subdivided into two hemitergites, left hemitergite VIII with elongated triangular process, right margin with about 9 subparallel, thick spiniform microtrichia ( Figs 5E, G , 6 A−B). The basal portion of process bearing numerous small round projections. Short to moderate length microtrichia located at surface of process, ends of these microtrichia split into 2 to 5 branches ( Fig. 5G ). Right hemitergite VIII subtriangular, posterolateral portion projecting posteriad, with thin setae at its posterolateral margin.

GENITALIA. Pygophore slightly asymmetrical, dorsal surface densely covered with groups of setae on small, tightly connected projections, posterior area with relatively long setae. Parameres strongly asymmetrical, left paramere ( Figs 5E , 6E‒F ) with broadly rounded laminate extension directed dorsal near the base, and with flattened and elongate distal projection slightly curved inward; right paramere ( Figs 5E , 6G‒H ) with flattened and blunt distal projection. Apical portion of phallus ( Figs 5D‒E , 6D ) tubular, relatively long, forming one complete coil outside of pygophore.

Female

Unknown.

Distribution

China: Yunnan ( Fig. 32 ).

Figures

Fig. 5. Kokeshia bui 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. 6. Kokeshia bui sp. nov., segment VIII and genitalia, paratype, ♂ (SYSBM). A‒B. Left hemitergite VIII. A. Dorsal view. B. Left lateral view. C. Right hemitergite VIII, dorsal view. D. Phallus. E‒F. Left paramere, two different aspects. G‒H. Right paramere, two different aspects.

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.