Taxonomic review of Kokeshia Miyamoto, 1960 from China, with description of ten new species (Hemiptera: Heteroptera: Schizopteridae) Author Luo, Jiu-Yang C9ACC9F1-9C82-43C1-A463-5FCAA68557E9 State Key Laboratory of Biocontrol, Sun Yat-sen University, 135 Xingangxi Road, Guangzhou 510275, Guangdong, China. luojy93@mail.sysu.edu.cn Author Xie, Qiang ABD76A07-9958-497F-B84E-03E86DBE8CCE State Key Laboratory of Biocontrol, Sun Yat-sen University, 135 Xingangxi Road, Guangzhou 510275, Guangdong, China. xieq8@mail.sysu.edu.cn text European Journal of Taxonomy 2022 2022-03-11 802 1 57 http://dx.doi.org/10.5852/ejt.2022.802.1687 journal article 20211 10.5852/ejt.2022.802.1687 f446314a-e9b6-4217-a8fd-bb24423e54ca 2118-9773 6358878 C3F3CDB9-0703-458A-BCE4-DE81614F075B 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. 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. 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 ).