Lesticus verticillatus Fedorenko, 2022

Fedorenko, D. N., 2022, New or little-known Lesticus Dejean, 1828 (Coleoptera: Carabidae: Pterostichini) from Vietnam, Russian Entomological Journal 31 (3), pp. 260-275 : 268-270

5. Lesticus verticillatus Fedorenko , sp.n.

Figs 7–8 , 19–20 , 37 .

MATERIAL. Holotype ♂ ( ZMMU), labelled:‘ Central Vietnam,/ Kon Tum Prov., N[orthern]. part/ Ngoc Linh Nat [ure] Reserve ,/ Ngoc Linh env./ pitfall trap / leg. A.Anichkin V.2006 ’. Paratypes: 2♂♂ ( ZIN) from the same locality, with label ‘ Vietnam, Kon Tum Prov.,/ Central Highlands , 2–3 km W/ of Ngoc Linh Mt. , 15°05´N,/ 107°57´E, 1700–1900 m / 25.III–14.IV 2004 A V Abramov’; ♂ ( SIEE), ‘ Vietnam, Quang Nam Prov. / Nam Gian [g] Distr.,/ Song Thanh Natn. Park,/ 15°33´48´´N 107°23´22´´E / h= 1050 m 23.IV–11.V./ leg. D.Fedorenko 2019’; ♀ , same data,except for 15°34´07´´N 107°23´13´´E / h= 1010 m. — Aedeagus examined in four males , internal sac (not perfectly prepared) examined in one male.

DIAGNOSIS. As for the previous species, except for body smaller, antennal pedicel with (vs. without) additional verticillate setae, elytra with 1–2 (vs. three) discal setae, etc. Internal sac of aedeagus peculiar due chiefly to bulb a missing and c large, with dorsal process cd reduced to a vague tubercle.

DESCRIPTION. As for L. bellus sp.n. except as follows. BL 22.8–25 mm. Head and pronotum cupreous, elytra rather deep purple or slightly violaceous. Dorsal micropunctation very fine, indistinct or hardly traceable.

Head ( Figs 7–8 ): frontal sulci long and very deep.

Pronotum ( Figs 19–20 ) subquadrate to subcordate, sides straight to slightly yet distinctly sinuate in front of basal angles. Base 1/7–1/4 wider than apex, either slightly sinuate or truncate. Basal foveae smooth or slightly rugulose, without or with (one male paratype) a few punctures, on each side and at bottom of inner basal sulcus. Basal and apical transverse impressions indistinct.

Elytral basal ridge mostly reaching parascutellar striole. Intervals slightly convex to almost flat, slightly deeper toward lateral margin and toward apex. Interval 3 with 1–2 discal setae, with d2 missing on one or both sides. USS: 23– 28.

Propleura, sides of metaventrite, mes- and metepisterna, abdominal sternite II and usually also III coarsely, sparsely to densely, punctate.

GEOGRAPHIC DISTRIBUTION. Only known from Ngok Linh Mt. and adjacent massifs of the northern Tay Nguen Plateau (Central Highlands) within Kon Tum and Quang Nam provinces, Central Vietnam .

NAME. Latin adjective referring to pedicel with additional verticillate setae.

HABITATS AND HABITS. All the specimens have been hand collected or taken by pitfall traps in montane, broad-leaved, monsoon forests.

Figures

Figs 1–12. Head: 1–2 — Lesticus nubilus, 2♂♂; 3 — L. attenuatus sp.n., ♂ paratype; 4 — L. p. praestans, ♂ from Cuc Phuong NP, Vietnam; 5 — L. p. mouhotii, ♀ from Mondulkiri Prov., Cambodia; 6 — L. auricollis, ♂ from Bac Giang Prov., Vietnam; 7–8 — L. verticillatus sp.n., ♂ paratype from Song Thanh NP and ♂ holotype; 9 — L. bellus sp.n., ♀ holotype; 10 — L. buqueti, ♀; 11 — L. lakhonus, ♀; 12 — L. laevis sp.n., ♂ holotype; 1, 10–11 — Cat Tien NP, Vietnam; 2 — Mae Vong env., Thailand. Рис. 1–12. Голова: 1–2 — Lesticus nubilus, 2♂♂; 3 — L. attenuatus sp.n., паратип ♂; 4 — L. p. praestans, ♂ иЗ Нац. парка Кыкфыонг, Вьетнам; 5 — L. p. mouhotii, ♀ иЗ пров. Мондулкири, Камбоджа; 6 — L. auricollis, ♂ иЗ пров. БакЗЯн, Вьетнам; 7–8 — L. verticillatus sp.n., паратип ♂ иЗ нац. парка Сонгтхань и голотип ♂; 9 — L. bellus sp.n., голотип ♀; 10 — L. buqueti, ♀; 11 — L. lakhonus, ♀; 12 — L. laevis sp.n., ♂ голотип; 1, 10–11 — Нац. парк Катьен, Вьетнам; 2 — окр. Мае Вонг, Таиланд.

Figs 13–24. Pronotum: 13–14 — Lesticus nubilus, 2♂♂; 15 — L. attenuatus sp.n., ♂ paratype; 16 — L. p. praestans, ♂ from Cuc Phuong NP, Vietnam; 17 — L. p. mouhotii, ♀ from Mondulkiri Prov., Cambodia; 18 — L. auricollis, ♂ from Bac Giang Prov., Vietnam; 19– 20 — L. verticillatus sp.n., ♂ paratype from Song Thanh NP and ♂ holotype; 21 — L. bellus sp.n., ♀ holotype; 22 — L. buqueti, ♀; 23 — L. lakhonus, ♀; 24 — L. laevis sp.n., ♂ holotype; 13, 22–23 — Cat Tien NP, Vietnam; 14 — Mae Vong env., Thailand. Рис. 13–24. Переднеспинка: 13–14 — Lesticus nubilus, 2♂♂; 15 — L. attenuatus sp.n., паратип ♂; 16 — L. p. praestans, ♂ иЗ Нац. парка Кыкфыонг, Вьетнам; 17 — L. p. mouhotii, ♀ иЗ пров. Мондулкири, Камбоджа; 18 — L. auricollis, ♂ иЗ пров. БакЗЯн, Вьетнам; 19–20 — L. verticillatus sp.n., паратип ♂ иЗ нац. парка Сонгтхань и голотип ♂; 21 — L. bellus sp.n., голотип ♀; 22 — L. buqueti, ♀; 23 — L. lakhonus, ♀; 24 — L. laevis sp.n., ♂ голотип; 13, 22–23 — Нац. парк Катьен, Вьетнам; 14 — окр. Мае Вонг, Таиланд.

Figs 25–39. Aedeagus: 25–26 — Lesticus praestans mouhotii; 27–28– L. nubilus; 29–30, 38–39 — L. attenuatus sp.n., paratypes; 31– 32, 35 — L. auricollis; 33–34, 36 — L. bellus sp.n., paratype; 37 — L. verticillatus sp.n., paratype; 25–34 — median lobe with everted and inflated internal sac; 25, 27, 29, 31, 33 — caudal aspect; 26, 28, 30, 32, 34 — anterodorsal aspect; 35–39 — right paramere, left aspect; a, b, bb, c, cd, d, e, ed, ev, f — bulbs of internal sac. Scale bars 2 mm (25–34) or 1 mm (35–39). Рис. 25–39. Эдеагус: 25–26 — Lesticus praestans mouhotii; 27–28– L. nubilus; 29–30, 38–39 — L. attenuatus sp.n., паратипы; 31– 32, 35 — L. auricollis; 33–34, 36 — L. bellus sp.n., паратип; 37 — L. verticillatus sp.n., паратип; 25–34 — среднЯЯ долЯ с вывернутым и надутым внутренним меШком; 25, 27, 29, 31, 33 — каудально; 26, 28, 30, 32, 34 — антеродорЗально; 35–39 — праваЯ парамера, слева; a, b, bb, c, cd, d, e, ed, ev, f — пуЗыри внутреннего меШка. МасШтаб: 2 мм (25–34) или 1 мм (35–39).