Cylindera (Cylindera) ooa, Chou, Ming-Hsun & Yeh, Wen-Bin, 2019

Chou, Ming-Hsun & Yeh, Wen-Bin, 2019, Delineation of two new, highly similar species of Taiwanese Cylindera tiger beetles (Coleoptera, Carabidae, Cicindelinae) based on morphological and molecular evidence, ZooKeys 875, pp. 31-62 : 43-46

Cylindera (Cylindera) ooa sp. nov.

Type material.

Holotype: male ( Fig. 14 ; specimen code: AdeC66-1; dry pinned, with aedeagus in glycerol in a separated microvial labeled “AdeC66-1”): Taiwan, Kaohsiung, Jiaxian, Liuyi Mountain, altitude 400-500 m, 17 May 2018, Ming-Hsun Chou leg. Original label: "Locality: 高雄甲仙六義山 / Date: 2018.V.17 / Collector: 周明勳 / Code: AdeC66-1"; " NCHU 0011-0735". Dry specimen and aedeagus of holotype deposited in NCHU. Paratypes: 1 male ( Fig. 15 ; specimen code: AdeC66-15; dry pinned, with aedeagus in glycerol in a separated microvial) and 3 females (specimen code: AdeC66-2 ( Fig. 16 ), AdeC66-16, and AdeC66-17, respectively; dry pinned, with genitalia in glycerol in a separated microvial, respectively): same collecting information as for holotype. 1 male (specimen code: AdeC73-4; dry pinned, with aedeagus in glycerol in a separated microvial): Taiwan, Kaohsiung, Jiaxian, Liuyi Mountain, altitude 400-500 m, 23 Jun. 2018, Ming-Hsun Chou leg. Above dry specimens and genitalia of paratypes deposited in NMNS. 3 females (dry pinned, labeled "Paratype- MFNB-01", "Paratype- MFNB-02", and "Paratype- MFNB-07", respectively): Taiwan, Kaohsiung, Jiaxian, 9-17 May 1908, Sauter S.V. leg. 1 male (dry pinned, labeled "Paratype- MFNB-03"): Taiwan, Kaohsiung, Jiaxian, 17-23 May 1908, Sauter S.V. leg. 1 male (dry pinned, labeled "Paratype- MFNB-04"): Taiwan, Kaohsiung, Jiaxian, 2-14 May 1908, Sauter S.V. leg. 1 male (dry pinned, labeled "Paratype- MFNB-05"): Taiwan, Kaohsiung, Jiaxian, 1-5 May 1908, Sauter S.V. leg. 1 female (dry pinned, labeled "Paratype- MFNB-06"): Taiwan, Kaohsiung, Jiaxian, 1-5 May 1908, Sauter S.V. leg. Above dry specimens of paratypes deposited in MFNB. Original labels of paratypes see Table 2 .

Type locality.

Taiwan, Kaohsiung, Jiaxian, Liuyi Mountain.

Diagnosis.

Cylindera ooa sp. nov. can be recognized based on its elongated subapical spots and no any spot at the middle edges of elytra. This species is very similar to C. sauteri ( Fig. 17 ) morphologically but can be distinguished from the latter by their elytral maculation, labrum, and body size. Cylindera sauteri has a nearly triangular spot at the middle margin of elytron, and its subapical spot is comparatively tiny or rounded. In contrast, the middle elytral margin of C. ooa sp. nov. does not have any spot, and its subapical spot is comparatively longer than that of C. sauteri ( Figs 7 , 8 ). The labrum of C. ooa sp. nov. is more straight laterally and has five or six preapical setae ( Figs 18-21 ), but the labrum of C. sauteri is concave in lateral sides and has four or five preapical setae ( Figs 22-25 ). Moreover, the body sizes of C. sauteri , as well as male genitalia, are usually larger than those of C. ooa sp. nov. ( Figs 6 , 9 , 10 ).

Description.

Head brownish patina with blue or green luster but more brownish when alive; vertex, frons, and genae almost glabrous except two setae on canthus and anterior portion of vertex, respectively; rugae longitudinal along frons, canthi, vertex, and lateral neck, and gradually becoming transverse on genae; frons and central vertex microsculptured; clypeus brownish patina and microsculptured. Compound eyes protruding and globular. Antennae long and filiform; scape with one apical seta; 1-4 antennomeres metallic bronze; 5-11 ones dark. Mandibles testaceous with dark teeth, exceeding labrum when closed. Maxillary palps dark testaceous with metallic luster, except last two palpomeres metallic dark green. Labial palps testaceous; last palpomere metallic dark green. Labrum testaceous; anterior portion narrow and tridentate; middle tooth longer than other two in female, shorter than or equivalent to others in male; margin with 5-6 preapical and two lateral setae ( Figs 18-21 ). Pronotum cylindrical and brownish patina with blue or green luster but more brownish when alive; dorsum microsculptured and rugose transversely, with one transverse groove on each anterior and posterior portions connected with one longitudinal obscure groove; lateral sides little rounded. Elytra brownish patina but more brownish when alive, marked with many scattered punctures; three obscure brownish patches wiping longitudinally near suture; each elytron with usually two white or testaceous spots, one rounded or irregular near suture, one elongated a little and oblique on subapical corner; posthumeral spots usually absent or unobvious but visible in some individuals ( Fig. 15 ). Legs long; trochanters brownish; coxae, femurs and tibias metallic greenish bronze; tarsi dark greenish with purple luster, pro-tarsi sexually dimorphic, basal 1-3 tarsomeres with dense brush-like ventral setae and wider than last two tarsomeres in male, all pro-tarsomeres equivalent in width roughly and without brush-like ventral setae in female; some white hairs on femurs and coxae, one long seta on pro-, mesocoxae, pro- and mesotrochanters. Thoracic proepisternum brownish patina with greenish luster, longitudinally rugose, with 2-4 hairs on lower portion. Prosternum brownish patina with greenish luster, transversally rugose, glabrous. Mesoepisternum brownish patina with greenish luster, longitudinally depressed and coarsely rugose, sometimes with rare hairs. Mesosternum brownish patina with greenish luster, transversally rugose, sometimes with rare hairs. Metepisternum brownish patina with greenish luster, coarsely sculptured, with a few hairs. Metasternum dark bronze with greenish luster, microsculptured, covered by many white hairs on both sides. Abdomen sternum dark green with metallic greenish reflection and with scattered tiny hairs. Aedeagus of holotype shown in Fig. 8 . Description same as Results.

Etymology.

Jiaxian, the type locality, is famous for taro cultivation and products. The Taiwanese pronunciation of taro is ōo-á, so it was applied as specific name.

Distribution.

Only known from type locality.

Ecology.

Habitat of C. ooa sp. nov. is similar to C. sauteri that they inhabit soil slopes with some gravels and covered by a few vegetation in or near forest. Cylindera sauteri can also be found in Jiaxian, but we did not observe them in the same habitat. Cylindera pseudocylindriformis inhabits soil slopes as well and sometimes overlaps with C. ooa sp. nov.

Figures

Figure 6. Body length (pronotum and elytron) of the sauteri group. Legends: max maximum; med median; min minimum; out outlier.

Figure 17. Dorsal habitus of Cylindera sauteri (left - male; right - female).

Figures 14 - 16. Type specimens of Cylindera ooa sp. nov. 14 male holotype (AdeC 66 - 1) 15 male paratype (AdeC 66 - 15) exhibiting visible posthumeral spots 16 female paratype (AdeC 66 - 2).

Figures 7, 8. The elytral maculations (left elytron). 7 Kosempo form lacks any spot on the middle elytral edge and has one spot near suture (a) and one subapical spot (b) 8 Cylindera sauteri has one spot near suture (c), one subapical spot (d), and one triangular spot on the elytral middle edge (e).

Figures 18 - 21. Digital images (left) and line drawings (right) of labra of Cylindera ooa sp. nov. 18, 19 male (holotype, AdeC 66 - 1) 20, 21 female (paratype, AdeC 66 - 2).

Figures 22 - 25. Digital images (left) and line drawings (right) of labra of Cylindera sauteri 22, 23 male 24, 25 female.

Figures 9, 10. Digital image of aedeagus in left view of Kosempo form (AdeC 66 - 1) (9) and Cylindera sauteri (10). Abbreviations: ap arciform piece; cp central plate; f flagellum; p paramere; mt medial tooth; sr stiffening rib.