Two new species of Chilocorus Leach, 1815 from Laos (Coleoptera Coccinellidae Chilocorini) Author Li, Wenjing https://orcid.org/0000-0002-3365-1219 Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China Author Chen, Bingxu Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China Author Toulakhom, Chantharath Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Agricultural Pest Biocontrol, Guangdong Province; Engineering Research Center of Biological Control, Ministry of Education & Guangdong Province, South China Agricultural University, Guangzhou, China Author Wang, Xingmin Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Agricultural Pest Biocontrol, Guangdong Province; Engineering Research Center of Biological Control, Ministry of Education & Guangdong Province, South China Agricultural University, Guangzhou, China 32457430@qq.com text Biodiversity Data Journal 2021 2021-12-02 9 72966 72966 http://dx.doi.org/10.3897/BDJ.9.e72966 journal article http://dx.doi.org/10.3897/BDJ.9.e72966 1314-2828-9-e72966 6FC89E550E704D449D49E00600B871EC 6F893D5DE02A5F0EAD71FDCB3817FA77 Chilocorus vientianicus Li & Wang sp. n. Materials Type status: Holotype . Occurrence: recordNumber: No. 202107-02; recordedBy: Wenjing Li ; individualCount: 1 ; sex: 1 male ; lifeStage: adult ; previousIdentifications: Chilocorus politus; Taxon: scientificName: Chilocorus vientianicus Li & Wang , sp. n.; Location: country: Laos ; locality: VangVieng, Vientiane ; georeferenceProtocol: label; Identification: identifiedBy: Wenjing Li ; dateIdentified: 2021; Event: samplingProtocol: sweeping ; eventDate: 06/07/ 2006 Type status: Paratype . Occurrence: recordedBy: Wenjing Li ; individualCount: 8 ; sex: 4 male , 4 female ; lifeStage: adult ; previousIdentifications: Chilocorus politus; Taxon: scientificName: Chilocorus vientianicus Li & Wang , sp. n.; Location: country: Laos ; locality: VangVieng, Vientiane ; georeferenceProtocol: label; Identification: identifiedBy: Wenjing Li ; dateIdentified: 2021; Event: samplingProtocol: sweeping ; eventDate: 06/07/2006 Description TL: 4.91-5.66 mm, TW: 4.58-5.35 mm, TH: 3.07-3.75 mm, TL/TW: 1.05-1.07, PL/PW: 0.54-0.57, EL/EW: 0.98-0.99. Body roundish, strongly convex. Head, mouthparts and antenna brownish-red, sparsely covered with short, greyish pubescence. Pronotum, scutellum and elytra glabrous, brownish-red (Fig. 2 a-c). Underside brownish-yellow, sparsely covered with short, greyish pubescence. Head relatively large, 0.52-0.53 times pronotal width, punctures on frons large and densely distributed, 0.5-1.5 diameters apart, surface polished between punctures. Eyes approximately oval, densely faceted, interocular distance 0.47 x as wide as head (Fig. 2 c). Pronotum 0.53 x as wide as elytra, pronotal punctures moderately large and moderately densely distributed, smaller than those on head, 1.5-2.5 diameters apart, surface polished between punctures. Punctures on elytra moderately large and sparsely distributed, 2.0-3.5 diameters apart, similar to those on pronotum. Prosternal process moderately broad, slightly expanded to apex. Abdominal postcoxal lines incomplete, reaching posterior margin of abdominal ventrite 1 and running along posterior margin, then almost reaching lateral margin. Posterior margin of male abdominal ventrite 5 broadly rounded and ventrite 6 slightly emarginate medially (Fig. 2 d). Male genitalia: penis slender, penis capsule with long outer and short inner arm, apex of penis truncate with membranous appendage (Fig. 2 e-f). Tegmen stout, penis guide narrow at base, guide slightly narrow at base, gradually broadened up to basal 1/2, abruptly tapering from apical 1/4 to apex, approximately symmetrical in ventral view; penis guide in lateral view widest at base, parallel along basal 5/8, after that abruptly converging to apex; parameres nearly as long as the penis guide with dense short setae on the inner sides and distal end with a group of short setae in lateral view (Fig. 2 g-h). Female genitalia: coxites elongate, subtriangular, outer margin almost straight, inner margin distinctly concave near apical 1/3 (Fig. 2 i). Diagnosis This species resembles C. toulakhomianus , sp. n. in the body size and colouration, but can be distinguished by the following characters: apex of penis truncate with membranous appendage, without spiral grain; penis guide widest at base, parallel along basal 5/8, after that abruptly converging to apex in lateral view; coxites elongate outer margin almost straight, inner margin distinctly concave near apical 1/3. Etymology The specific epithet is named after Vientiane, the type locality of this ladybird. Distribution Laos (Vientiane) (Fig. 3 ).