Therates hunanensis Matalin et Wiesner, 2023

Matalin, Andrey V. & Wiesner, Jürgen, 2023, Revision of the Therates fruhstorferi complex (Coleoptera, Cicindelidae), Zootaxa 5256 (5), pp. 401-433 : 415-421

Therates hunanensis Matalin et Wiesner , sp. n.

Figs 25 , 42, 43 , 75, 76 , 107, 108 , 169–171 .

Therates fruhstorferi fruhstorferi W. Horn, 1902 — Tan 1993: 257.

Type material. HOLOTYPE, ♂ — China, S Hunan, 900–1300 m, SHUNHUANGSHAN for. park, 26 o 22-24’N 111 o 01-02’E, 20.VI.2013, Jatua leg. ( JW) ; PARATYPES, 2♂♂ 1♀ —same labeled as the holotype (1♂ 1♀ — JW; 1♂ — MSPU) .

Additional material. CHINA, Hunan Prov.: 1♂ — Tiang Ping Shan , 12.VIII.1998, 1400 m, Wang Shu Yong ( XX) .

References. CHINA, Hunan Prov.: Sangzhi County, Tianping Mt. , 1370–1570 m ( Tan 1993 —as T. fruhstorferi ) .

Diagnosis. From related T. vitalisi , T. sauteri and T. biserratus a new species is easily recognised by the smaller size (mean)— 10.93 mm vs. 12.44 mm in T. vitalisi , 11.8 mm in T. sauteri , and 11.1 mm in T. biserratus , by distinctly striated orbital plates in posterior third, by the shape of antennomeres 9–11 ( Figs 42, 43 vs. Figs 44–49 ), by wide apical dot ( Figs 25 , 107, 108 vs. Figs 15, 17–19, 21, 22, 24, 26, 28 , 99–106, 109–114 ), by pale hind tibia and coloration of hind tarsi ( Fig. 25 vs. Figs 15, 17–19, 21, 22, 24, 26, 28 ), as well as by the shape of aedeagus ( Figs 169–171 vs. Figs 152–168, 173, 174 ); additionally from T. biserratus a new species is clearly distinguished by wide apical dot extend the suture ( Figs 25 , 107, 108 vs. Figs 22, 24 , 105, 106 ).

Description. TL = 10.4–11.3 mm in males (mean = 10.7 mm, n = 3), 11.6 mm in female.

Head black with blue-violet reflection; orbital plates distinctly striated in posterior third; frons slightly elevated in anterior third (see above), slightly downward anteriorly (in lateral view), frontal sulci deep, slightly convergent in anterior half and clearly divergent in posterior half; occiput flat. Mandibles in males light-brown underside, pale topside with light-brown teeth and apical molar; in female dark brown except pale basal half of topside. Labial palpi pale except brown apical palpomere; palpomeres 1 and 2 of maxillary palpi pale, palpomeres 3 and 4 light-brown and brown, respectively. Antennae extend posteriorly to the shoulders; scape pale on anterior side and brown-black on posterior side; antennomere 2 dark-brown or brown-black; antennomeres 3–6 black-brown topside and yellowbrown underside; antennomeres 9 and 10 in males with protruding downward anterior lower margins ( Fig. 43 ); in female slightly dilated anteriorly; antennomere 11 in males oval with slightly elongated apex, in female sharply abrupt anteriorly ( Fig. 42 ). Labrum indistinctly elongate, LL/LW = 1.0–1.08 (mean = 1.04, n = 4), trapezoid with straight lateral margins, black-brown with very large yellow apical spot unseparated from central apical teeth; in female apices of apical and lateral teeth red-brown ( Fig. 76 ), in males brown-black ( Fig. 75 ).

Pronotum black with blue-violet reflection; as wide as long, PW/PL = 0.98–1.03 (mean = 1.0, n = 4), apical lobe practically equal wide throughout; thorax black with violet reflection.

Fore femora pale with brown posterior side; middle femora pale with brown with violet tinge anterior side; hind femora pale or in basal third and black-brown with violet tinge in apical 2/3; fore tibiae pale with black apices and light-brown lateral inner side; middle tibiae pale with black apices; hind tibiae pale with brown-black apices and light-brown lateral inner side (in two males), or brown with violet tinge (in one male and in female); fore tarsi black with light violet tinge except dark brown tarsomeres 1 and 2 with black apices; middle and hind tarsi black except yellow-brown or brown tarsomere 1 with black apex; HTbL/HTaL = 1.16–1.24 (mean = 1.19, n = 4).

Elytra black with blue-violet reflection, sub-parallel or indistinctly divergent toward apex, EL/EW = 2.0–2.09 (mean = 2.03, n = 4); punctuation deep and regular between basal humps and oblique central dot, apical quarter glabrous and smooth; scutellum black with light violet tinge; apical margin in males evenly rounded in female shortly cut. Elytral pattern includes four isolated yellow spots: large triangular basal portion of humeral lunule, basal spot large and prolonged to the suture in males, and very small not extend the suture in female, elongate oblique central dot as well as wide apical dot extend the suture ( Figs 25 , 107, 108 ).

Aedeagus with slightly elongate and indistinctly shortly curved apex and long lateral carinae ( Figs 169–171 ); AL = 2.4–2.6 mm (mean = 2.5 mm, n = 3); EL/AL = 2.54—2.92 (mean = 2.74, n = 3).

Etymology. A new species is named for the type area—Chinese province Hunan.

Distribution. CHINA: Hunan Province (Dong’an and Chengbu Counties) ( Fig. 184 ).

Figures

FIGURES 184. Distribution of Therates spp.: dark blue solid circle—T. vitalisi vitalisi; dark blue half-solid circle—T. vitalisi ida; lilac solid circle—T. hunnanensis sp. n.; orange solid circle—T. biserratus; pink solid circle—T. motoensis; red open circle—T. sauteri; red solid quadrat—T. fruhstorferi fruhstorferi; red half-solid quadrat—T. fruhstorferi australis ssp. n.; blue solid quadrat—T. ziyardamensis sp. n.; green solid quadrat—T. pseudovitalisi sp. n. (nominotypical subspecies); green halfsolid quadrat—T. pseudovitalisi tibetana ssp. n.; L in the symbols—according only to the literature sources. Map source— https://commons.wikimedia.org/wiki/File:East_Asia_topographic_map.png.

FIGURES 15–28. Therates spp., habitus: 15–18—T. vitalisi vitalisi (15, 16—Vietnam, Lao Cai; 17—Vietnam, Fan Si Pan Mnt; 18—Vietnam, Sa Pa); 19–21—T. vitalisi ida (China, Kuatun); 22–24—T. biserratus (22, 23—China, Yinjiang County; 24—China, Fanjing Shan-Kuaichang); 25—T. hunnanensis sp. n. (China, Shunhuangshan); 26–28—T. sauteri (26, 27—China, Tiawan, Taihorin; 28—China, Taiwan, Ilan Hsien); 17–20, 24–28—males; 15, 16, 21–23 —females; 15, 16, 19, 20, 25— holotypes; 22, 23—paratype; 26, 27—lectotype; 15, 17–19, 21, 22, 24–26, 28—habitus; 16, 20, 23, 27—type labels.

FIGURES 29–49. Therates spp., left antennomeres 6–11: 29–32—T. fruhstorferi fruhstorferi (29, 30 – Vietnam, Na Hang; 31, 32 – Laos, Ban Nape); 33, 34—T. fruhstorferi australis ssp. n. (33—Vietnam, Kon Ka Kinh N.P.; 34—Vietnam, Pak Khe River); 35—T. ziyardamensis sp. n. (Myanmar, Zi Yar Dam); 36, 37—T. pseudovitalisi pseudovitalisi ssp. n. (36—Laos, Ban Song Cha; 37—Laos, Ban Bun Neua); 38, 39—T. pseudovitalisi tibetana ssp. nov. (China, Xia-Cha-Yu); 40, 41—T. motoensis (China, Hanmi); 42, 43—T. hunnanensis sp. n. (China, Shunhuangshan); 44—T. biserratus (China, Fanjing Shan-Kuaichang); 45, 46—T. vitalisi vitalisi (Vietnam, Xuan Son N.P.); 47—T. vitalisi ida (China, Fukien); 48, 49—T. sauteri (48—China, Taiwan, Taipei Hsien; 49—China, Taiwan, Ilan Hsien); 30, 32, 34, 35, 37, 39, 41, 43, 44, 46, 49—males; 29, 31, 33, 36, 38, 40, 42, 45, 47, 48—females; 33, 35, 37, 39, 41—holotypes; 34, 36, 38, 42—paratypes. Without scales.

FIGURES 73–80. Therates spp. labrum: 73, 74—T. biserratus (73—China, Yinjiang County; 74—China, Fanjing Shan- Kuaichang); 75, 76—T. hunnanensis sp. n. (China, Shunhuangshan); 77–80—T. sauteri (77, 78 —China, Taiwan, Taihorin; 79—China, Taiwan, Ilan Hsien; 80—China, Taiwan, Taipei Hsien); 74, 75, 77, 79—males; 73, 76, 78, 80—females; 75— holotype; 73, 76—paratype; 77, 78—paralectotypes.

FIGURES 99–114. Therates spp., left elytron: 99–102—T. vitalisi vitalisi (99 —Vietnam, Lao Cai; 100, 101—Vietnam, Sa Pa; 102—Laos, 15 km NW Louang Namtha); 103, 104—T. vitalisi ida (China, Kuatun); 105, 106—T. biserratus (105— China, Yinjiang County; 106—China, Fanjing Shan-Kuaichang); 107, 108—T. hunnanensis sp. n. (China, Shunhuangshan); 109–114—T. sauteri (109, 110, 112, 113—China, Taiwan, Taihorin; 111—China, Taiwan, Ilan Hsien; 114—China, Taiwan, Taipei Hsien); 100, 103, 106, 107, 109–111—males; 99, 101, 102, 104, 105, 108, 112–114—females; 99, 103, 107— holotypes; 105, 108—paratypes; 109, 110, 112, 113—paralectotypes

FIGURES 152–174. Therates spp., aedeagus: 152–166—T. vitalisi vitalisi (152, 153—Vietnam, Xuan Son N.P.; 154— Vietnam, Sa Pa; 155, 156—Laos, Ban Nape—Kaev Nua pass; 157–163—Laos, 15–20 km NW Louang Namtha; 164, 165— Laos, 8 km NE Ban Nape; 166—Laos, Thong Khan); 167—T. vitalisi ida (China, Kuatun); 168—T. biserratus (China, Fanjing Shan-Kuaichang); 169–171—T. hunnanensis sp. n. (China, Shunhuangshan); 172—T. motoensis (China, Hanmi); 173, 174—T. sauteri (173—China, Taiwan, Taihorin; 174—China, Taiwan, Ilan Hsien); 167, 169—holotypes; 170, 171—paratypes; 173— lectotype; 152—dorsal view; 153–174—left lateral view; ac—apical carinae; sp—spring; fl—flagellum. Scale bars in mm.