Parastasia indica Ohaus, 1898

Zhao, Ming-Zhi, 2019, Notes on the genus Parastasia Westwood (Coleoptera: Scarabaeidae: Rutelinae) from China, with description of a new species, Zootaxa 4613 (2), pp. 240-250 : 244-245

Parastasia indica Ohaus, 1898

( Figs. 19, 20, 23–26 , 42–46 )

Parastasia indica Ohaus, 1898: 9 [description]; Ohaus 1900: 256 [description of the female, figures of parameres]; Arrow 1917: 43 [redescription, key]; Ohaus 1918: 36 [catalogued, in P. westwoodi species-group]; Ohaus, 1934: 104 [catalogued]; Paulian, 1958: 84 [redescription, key]; Machatschke, 1972: 43 [catalogued]; Kuijten 1992: 91 [redescription and key, figured]; Zorn 2006: 277 [catalogued]; Zorn & Bezděk 2016: 357 [catalogued].

Parastasia fruhstorferi Ohaus, 1902: 57 [description]; Ohaus 1905: 97 [junior synonym of P. indica , color variation]; Ohaus, 1934: 104 [catalogued, in synonymy]; Kuijten 1992: 91 [in synonymy]; Zorn 2006: 277 [catalogued, in synonymy]; Zorn & Bezděk 2016: 357 [catalogued, in synonymy].

Material examined (27♂♂, 8♀♀). 9♂♂, 4♀♀ ( CZMZ), CHINA: Guangdong, Guangzhou City, Tianluhu For- est Park , 2017. III.4, larvae collected by Ming-Zhi Zhao & al., emerged in 2017.IV; 3♂♂, 2♀♀ ( CZMZ), CHINA: Guangdong, Guangzhou City, Conghua, Liuxihe Forest Park , 2019.I, larvae collected by Xiao-Han Ye & Bao-Xiang Zhan , emerged in 2019.III; 1♂ ( CZMZ), CHINA: Guangdong, Guangzhou City, Tianluhu Forest Park, 2018.V, light trap, Pin-Chao Lin leg. ; 4♂♂ ( CZMZ), CHINA: Guangdong, Guangzhou City, Mount Huolushan , 2010. V.1 ; 1♂ ( SCAU), ‘ CHINA: Guangdong, Huizhou City, Longmeng County, Yonghan Town , Mount Nankunshan , Danfengzhai Village , 585m, 113°51′39″E, 23°39′30″N, 2016. V.30, net capture, Wen-Seng He leg. ; 1♂ ( SCAU), CHINA: Guangdong, Yingde City, Shimengtai Nature Reserve , 2017. VI.7, Na Li leg. ; 1♂ ( SCAU), CHINA: Guangdong, Shaoguan City, Wujiang Dist., Jiangwan Town , Liangwu Village , 167m, 113°14′11″E, 24°38′22″N, 2016. V.28, light trap, Jian-Ling Guo leg. ; 1♀ ( CZMZ), CHINA: Fujian, Sanming City , 2009.VII, Zhen Shi & Yang He leg. ; 1♂, 1♀ ( CZZ), CHINA: Fujian, Longyan City, Huanglianyu , 800–1000m, 2018. II.12, larvae collected by Zheng Zhang , emerged in 2018.V (examined through photos by Zheng Zhang); 1♂ ( CCCC), CHINA: Guangxi, Hechi City, Huanjiang County, Mount Jiuwanshan , 1180m, 2015. V.30, light trap, Yan-Quan Lu leg. ; 2♂♂ ( CZMZ), CHINA: Guangxi, Nanning City, Wuming County, Mount Damingshan , 2013. VI, Yan-Quan Lu leg. ; 1♂ ( CZMZ), CHINA: Yunnan, Xishuangbanna , 2012.I, larva collected by George Geshev. ; 1♂ ( CTZY), LAOS: Vientiane, Vang Vieng City , 2014. IX.18 (examined through photos by Zhao-Yang Tang) ; 1♂ ( ZFMK), NE-LAOS: Hua Phan prov.; Ban Saleui, Phou Pan ( Mt. )- 20°12′ N, 104°01′ E 11.iv. –15.v.2012, 1300–1900m leg. C. Holzschuh—ZFMK Ankauf 2012 (examined accoding to photos by Carsten Zorn) .

Remarks. Three male specimens respectively from Yunnan ( Fig. 20 ) and Laos are the black form, which is identical to the original description of P. indica . While the examined specimens from Guangdong ( Fig. 19 ) and Fujian both exhibit a strong sexual dichroism. All males from these two provinces match the description of P. fruh- storferi (Ohaus 1902), which had later been considered as a reddish form of P. indica ( Ohaus 1905) ; while females from the same provinces are the black form. The male individuals from Guangxi belong to the reddish form as well. In addition to the two color forms mentioned above, intermediate color forms were also recorded from Vietnam ( Kuijten 1992). Besides, parameres of the specimens from Yunnan ( Figs. 25, 26 ) and Hua Phan are longer than specimens from Guangdong ( Figs. 23, 24 ) and Guangxi, with apex acuter. The regularities of the color forms and genital characters from different localities in this species seem to be complex. Examinations of additional specimens from adjacent counties are required to make a summary concerning their taxonomic significances.

Natural history. Adults can be attracted by mercury light. Larvae were found in large pieces of decayed wood. The pupa is cradled in the inflated last larval skin ( Fig. 43 ).

Distribution. China (new record): Guangxi, Guangdong, Fujian, Yunnan; Laos (new record): Vientiane, Hua Phan; India; Bhutan; Thailand; Vietnam.

Figures

FIGURES 18–26. Habitus and aedeagus of Parastasia spp. 18, 21–22, P. sawadai (China: Guangxi); 19, 23–24, P. indica (China: Guangdong); 20, 25–26, P. indica (China: Yunnan); 18–20, habitus in dorsal view; 21, 23, 25, aedeagus in dorsal view; 22, 24, 26, aedeagus in lateral view.

FIGURES 40–46. Prepupae and pupae of Parastasia spp. in artificial conditions. 40, prepupa of P. oberthueri oberthueri (China: Guangdong) in pupal cell; 41, pupa of P. oberthueri oberthueri (China: Guangdong) in pupal cell; 42, prepupa of P. indica (China: Guangdong) in pupal cell; 43, pupa of P. indica (China: Guangdong) in pupal cell; 44, pupa of P. indica (China: Guangdong) in ventral view; 45, same, in lateral view; 46, same, in dorsal view.