Cosmodela duponti ( Dejean, 1826 )

1. Cosmodela duponti ( Dejean, 1826) View in CoL

Type depository. Lectotype ♀ ( Fig. 1 View Figures 1–3 ) in MNHN.

Type status. Lectotype ♀, designated here. Type labels: “Dupont [handwritten, yellow]”; “ ♀ [handwritten, yellow]”; “ Duponti Dej. / Chine / C. Gory. [handwritten]”; “ LECTOTYPUS / Cosmodela duponti / ( Dejean, 1826) / ded. Klícha & Wiesner, 2021” [printed, red]; ( Fig. 1 View Figures 1–3 ).

Redescription. Size: Total length (without labrum) 16–18 mm. Habitus robust and convex. The dominant colour is deep bright green, mostly with light golden up to bright red reflections ( Fig. 4–7 View Figures 4–7 ). Specimens from Laos and eastern Thailand have more greenish tones while specimens from Vietnam show prevailing reddish up to clear red colours on the sutural band and extension line, as well as on the pronotum and head. Head: broad, coarsely striate between eyes, forehead with deep wrinkles, clypeus waved in the center, metallic deep bright green and blue with violet reflections. Labrum wide with broad carina, black with two wide light-yellow patches in the central part, divided by the carina, with six long white setae. Genae coarsely striate, front part deep green, the rear part dark blue with violet reflections, totally glabrous. Pronotum: with shallow wrinkles, continuously bevelled backward, the sides slightly rounded in the front part, the base is mildly narrowed. Pronotal disc glabrous, proepisterna with few long white bristles. Elytra: parallel, curved at the apical part towards the sutural line, in ♀♀ the curve is slightly waved. The basic colour is satin deep blue, the specimens from Laos show slight green tone. The sutural and marginal bands as well as the base and extension line situated on the first quarter of elytra are bright green with light golden up to clear red tones as mentioned above. The marginal bands are irregular, the widest part is in the joint with the extension line and then make a thin irregular line up to the elytral apex. The extension line is short and does not touch the first patch in many specimens (mainly from Vietnam) or sits slightly on it but does not cover the patch in full width (specimens from Laos). Each elytron has a white humeral dot and three white elytral patches, the first one, touching the extension line is reduced to a dot, the central one is extended to a longitudinal short strip and the apical one is irregularly rounded. Epipleura bluish green. Ventral aspect: metallic blue green, partly white setose, abdominal sternites black with green and blue reflection, legs dark blue with bright green and violet reflections, trochanters metallic black. Aedeagus: size approx. 5 mm ( Fig. 15–16 View Figures 15–19 ), the upper back side rises sharply to a bulged top, behind which it tapers obliquely to the slightly rounded apex; the lower part is bent towards the apex, slightly wavy in the middle. Aedeagus is not as robust as in the following two species.

Distribution. Eastern Thailand, Laos, Vietnam, Cambodia.

Records. Vietnam: northern Vietnam : Bác-Ha prov., Lao Cai, 1 ♂, 1 ♀ ( ZGMC) ; southern Vietnam: Nam Cat Tien 4 ♂♂, 9 ♀♀ ( JWWC) ; Bach-Ma Nat. Park , 1 ♂ ( MKPC) ; Lien Khuong Waterfalls , 1 ♀ ( MKPC), 7 ♂♂, 1 ♀ ( MMPC), 4 ♂♂, 3 ♀♀ ( MJOC) ; Laos: central Laos: Khammouan Prov., Nakai Env. 4 ♂♂, 2 ♀♀ ( JWWC) ; Nakkai vill. env. ca 70 km NNE Muang Khammouan, 1 ♂, 4 ♀♀ ( OSJC) ; Bolikhamsai prov., Ban Nape, Kaew Nua Pas 1 ♂, 1 ♀ ( JWWC) ; southern Laos : Champasak prov., 40 km NE Pakse, 1 ♂, 2 ♀♀ ( JWWC) ; Paksong env. 1 m ( OSJC) ; Attapo prov., Bolaven Plateau 2 ♂♂, 3 ♀♀ ( JWWC), 2 ♂♂, 1 ♀ ( OSJC) ; Bolaven Plateau, Ban Itou , 2 ♂♂, 1 ♀ ( ZGMC), 3 ♂♂, 2 ♀♀ ( MKPC) ; Annam Highlands , 2 ♂♂, 2 ♀♀ ( OSJC) ; Sekong prov. 50 km N of Sekong , 5 ♂♂, 3 ♀♀ ( OSJC) . Thailand: Ubon Ratchathani prov., Khung Chiam , 1 ♂ ( Naviaux and Pinratana 2004: 162) .