Three new species of the genus Chilocorellus Miyatake (Coleoptera, Coccinellidae, Sticholotidini) from the Philippines Author Zhang, Xiaoning Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Agricultural Pest Biocontrol, Ministry of Education & Guangdong Province; Department of Entomology, South China Agricultural University, Guangzhou 510640, China https://orcid.org/0000-0002-0582-1188 Author Liang, Xinyue Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Agricultural Pest Biocontrol, Ministry of Education & Guangdong Province; Department of Entomology, South China Agricultural University, Guangzhou 510640, China & Department of Forest Protection, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510640, China Author Chen, Xiaosheng Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Agricultural Pest Biocontrol, Ministry of Education & Guangdong Province; Department of Entomology, South China Agricultural University, Guangzhou 510640, China & Department of Forest Protection, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510640, China https://orcid.org/0000-0001-8253-4943 Author Wang, Xingmin Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Agricultural Pest Biocontrol, Ministry of Education & Guangdong Province; Department of Entomology, South China Agricultural University, Guangzhou 510640, China wangxmcn@scan.edu.cn text ZooKeys 2020 937 115 127 http://dx.doi.org/10.3897/zookeys.937.50139 journal article http://dx.doi.org/10.3897/zookeys.937.50139 1313-2970-937-115 2E284E4E50AD43B980083F77FD10D60C A78DD581A4D15D9EA65D44B98879B445 Chilocorellus uncinacanthus Zhang & Wang sp. nov. Figures 1 , 4 Holotype. Philippines: 1 male, CNHM Philippines Zool. Exped. (1946-47) F. G. Werner leg., E. slope Mt. Mckinley, Davao Province, MINDANAO Elev. 6800 ft., 25 Aug. 1946 Lot #26, beating. Paratypes. 1 female, CNHM Philippines Zool. Exped. (1946-47) H. Hoogstraal leg.; Lake Linau, E. slope Mt. Apo, Davao Province, MINDANAO Elev. 7900 ft., mossy forest. 2 Nov. 1946. 1 female, CNHM Philippines Zool. Exped. (1946-47) H. Hoogstraal leg.; Baclayan, E. slope of Mt. Apo, Davao Province., MINDANAO Elev. 6500 ft., original forest. Nov. 1946. 1 female, CNHM Philippines Zool. Exped. (1946-47) H. Hoogstraal leg.; Lake Linau, E. slope Mt. Mckinley, Davao Province, MINDANAO Elev. 7900 ft. stunted mossy forest, 11 Jun. 1946. Diagnosis. This species is similar to C. protuberans , C. tenuous , and C. seleuyensis in general appearance (e.g., the elytra yellow without any spots and broad), but can be distinguished from them by the anterior part and apex of penis hatchet-shaped with irregularly serrated coupled teeth. In C. protuberans , the penis is long and slender, with a large penis capsule and apex of penis is curved, with many small teeth. In C. tenuous , penis is very long and slender and apex of penis has many large teeth. In C. seleuyensis , penis is longer than in other species and apex of penis is partly membranous, with many small teeth. Description. TL: 3.26-3.30 mm, TW: 2.87-3.02 mm, TH: 1.29-1.40 mm, TL/TW: 1.09-1.14; PL/PW: 0.23-0.24; EL/EW: 0.86-0.98 HW/PW: 0.55-0.58; PW/TW: 0.54-0.55; HW/TW: 0.30-0.32; Eye W/HW: 0.5-0.57. Head yellow, with eyes silvery gray. Pronotum, scutellar shield, and elytra yellow, with small dense punctures. Underside yellow, except mesoventrite and metaventrite yellowish brown. Body oval, moderately convex (Fig. 1b, c ). Head small, 0.3 times elytral width (HW/TW = 1:3.2) with sparse pubescence. Eyes oval, widest interocular distance 0.54 times head width (eye W/HW = 1:1.87). Frons broad with irregular transparent spots, punctures uniform and dense (Fig. 1c, d ). Pronotum 0.55 times elytral width (PW/TW = 1: 1.83), moderately transverse, with irregular transparent spots, punctures uniform and dense (Fig. 1c ). Elytra with transparent humeral angles, punctures uniform and dense (Fig. 1a-c ). Male genitalia (Fig. 1t-w ): penis guide in lateral view wide at base and uniformly narrowing to pointed apex; parameres distinctly longer than penis guide, uniformly slender with densely distributed long setae apically (Fig. 1t, u ); penis tubular, extremely long, curved; flabellate part of penis capsule very broad, anterior part and apex of penis hatchet-shaped with irregularly serrated coupled teeth (Fig. 1v, w ). Distribution. Philippines (Davao). Etymology. The name uncinacanthus is composed of the Latin word uncin , which refers to the anterior part of uncinate penis and acantha , referring to the anterior part and apex of the penis.