Coilodera penicillata, Hope, 1831

Qiu, Jian-Yue, Xu, Hao & Chen, Li, 2017, Taxonomic review of the Oriental flower beetle Coilodera penicillata species complex (Coleoptera: Scarabaeidae: Cetoniinae), Zootaxa 4350 (3), pp. 511-537 : 515

Key to species of the Coilodera penicillata species complex

1 Mesometasternal suture not engraved ( Figs. 63–64, 66 ).......................................................2

- Mesometasternal suture engraved ( Figs. 59–62, 65 )...........................................................3

2 Scutellum partly clad with tomentum (rarely glabrous) ( Figs. 52–53 ); basal piece of male genitalia distinctly convex ( Fig. 80 )................................................................................ C. penicillata Hope, 1831

- Scutellum glabrous ( Fig. 58 ); basal piece of male genitalia large and flat in lateral view ( Fig. 84 ).................................................................................................. C. nigroscutellaris Moser, 1902

3 Scutellum glabrous ( Fig. 57 ); posterior margin of median tomentose area of pronotum distinctly notched ( Figs. 25–26 , 45 ); outer teeth of male metatibia longer than ventral teeth ( Fig. 71 ); the length of male antennal club about 1.5 times as the length of antennomeres 2–7 combined...................................................... C. formosana Moser, 1910

- Scutellum covered with tomentum ( Figs. 49–51 ); posterior margin of median tomentose area of pronotum curved or slightly notched ( Figs. 4, 6, 8, 10, 13 , 15, 18 ); outer teeth of male metatibia shorter than ventral teeth ( Figs. 67–69 ); the length of male antennal club about twice as the length of antennomeres 2–7 combined...........................................4

4 Body surface with green metallic sheen and tomentum lemon-yellow ( Figs. 10–13 ); abdomen with long setae around midline in some individuals ( Figs. 11 , 43 )................................................. C. mearesii ( Westwood, 1842)

- Body surface with wine-red and/or green metallic sheen and tomentum orange or orange-red ( Figs. 4–9 , 15–20 ); middle portion of abdomen without setae, or with a few short setae ( Figs. 5, 7, 9 , 38 ).........................................5

5 Base of mesometasternal process distinctly constricted ( Fig. 59 ); tomentum orange-red; posthumeral maculae in female smaller in size ( Fig. 6 , 34, 40 ); parameres short ( Figs. 73–74 )........................ C. dives ( Gory & Percheron, 1833)

- Base of mesometasternal process distinctly slightly constricted ( Figs. 60–61 ); tomentum orange; posthumeral maculae in female larger in size ( Fig. 18 , 94 ); parameres elongate ( Figs. 75–76 ).................... C. grandimaculata new species

Figures

FIGURES 49 – 72. Scutellum, mesometasternal process, and male metatibia of Coilodera. 49 – 58, scutellum: 49, C. dives. 50, C. grandimaculata. 51, C. mearesii. 52 – 56, C. penicillata: 52 – 53, Lincang, Yunnan; 54, Gia Lai, central Vietnam; 55 – 56, Mount Daweishan, Yunnan. 57, C. formosana. 58, C. nigroscutellaris. 59 – 66, mesometasternal process. 59, C. dives. 60 – 61, C. grandimaculata: 60, male holotype; 61, female paratype. 62, C. mearesii. 63 – 64, C. penicillata: 63. Hua Phan, northeastern Laos; 64, Jingdong, Yunnan. 65, C. formosana; 66, C. nigroscutellaris. 67 – 72, male metatibia. 67, C. dives. 68, C. grandimaculata. 69, C. mearesii. 70, C. penicillata. 71, C. formosana. 72, C. nigroscutellaris.

FIGURES 73 – 85. Male genitalia and distribution of Coilodera. 73 – 84, Male genitalia: 73 – 74, C. dives. 75 – 76, C. grandimaculata, holotype. 77 – 78, C. mearesii. 79 – 80, C. penicillata. 81 – 82, C. formosana. 83 – 84, C. nigroscutellaris. 85, distribution of Coilodera.

FIGURES 21 – 33. Habitus of Coilodera. 21 – 24, C. penicillata (male): 21 & 24, Hua Phan, northeastern Laos; 22, Yunxian, Yunnan; 23, Mount Daweishan, Yunnan. 25 – 28, C. formosana: 25 & 28, Nantou, Taiwan (male); 26, Taitung, Taiwan (female); 27, Taitung, Taiwan (male). 29 – 33, C. nigroscutellaris: 29, Mount Dayaoshan, Guangxi (male); 30, Mount Wuzhishan, Hainan Island (female); 31, Mount Wuyishan, Fujian (female); 32, Mount Shengtangshan, Guangxi (male); 33, Mount Maoershan, Guangxi (male).

FIGURES 34 – 48. Types and labels of Coilodera. 34 – 36, C. dives, female lectotype (photograph by Giulio Cuccodoro). 37 – 41, C. miksici: 37 – 39, male holotype; 40 – 41, female paratype. 42 – 44, C. mearesii, female syntype (provided by Amoret Spooner). 45 – 46, C. formosana, female syntype (photograph by Joachim Willers). 47 – 48, C. nigroscutellaris, male syntype (photograph by Joachim Willers).

FIGURES 4 – 14. Habitus of Coilodera. 4 – 9, C. dives: 4 – 5, northern Kachin, Myanmar (male); 6 – 7, Mêdog Xizang (female); 8 – 9, Mêdog, Xizang (male). 8, Mêdog, Xizang (male). 10 – 14, C. mearesii (male): 10 – 11, Tiger Hill, northern India; 12, Kurseong, northern India; 13 – 14, female paratype of C. miksici.

FIGURES 15 – 20. Habitus of Coilodera grandimaculata: 15 – 17, male holotype; 18 – 20, female paratype.

FIGURES 91 – 94. Habitat of Coilodera. 91 – 93, C. dives: 91, habitat (Tongbiguan Nature Reserve, Yingjiang, Yunnan); 92, closer view of habitat; 93, larva in rotten wood. 94, Host plant (Zanthoxylum sp.) of C. grandimaculata in Mêdog, Xizang.