Genus Bungona Harker, 1957 (Ephemeroptera: Baetidae) from China, with descriptions of three new species and a key to Oriental species Author Shi, Weifang Author Tong, Xiaoli text Zootaxa 2019 2019-04-18 4586 3 571 585 journal article 27007 10.11646/zootaxa.4586.3.12 cf261dca-6d23-4d65-8096-07d52b073142 1175-5326 2647114 91C77484-124B-47CB-9DAA-C0BFA4284B17 Bungona ( Chopralla ) fusina (Tong & Dudgeon, 2003) ( Figs. 50–59 ) Chopralla fusina: Tong & Dudgeon, 2003: 17 . Bungona ( Centroptella ) fusina : Salles, Gattolliat & Sartori, 2016 : 104 . Material examined (deposited in ethanol unless otherwise stated). Besides the material examined by Tong & Dudgeon (2003), the following additional specimens have been studied: CHINA . Guangdong : 1 nymph on slides and 1 nymph, Shixing County, Chebaling National Nature Reserve ( 21.70°N , 114.25°E , alt. 370m ), 21.iv.2002 , coll. Xiaoli Tong. Hainan : 9 nymphs, Changjiang County , Bawangling National Nature Reserve , Dongliu ( 19.12°N , 109.09°E , alt. 220m ), 12.ix.2003 , coll. Wenli Wang ; 10 nymphs, Baisha County , Yinggeling National Nature Reserve , Nandanxi Stream , 25.xi.2005 , coll. Haiyuan Yao ; 1 nymph on slides and 13 nymphs, Baisha County , Yinggeling National Nature Reserve , Daoyin Protection Station ( 19.01°N , 109.36°E , alt. 640m ), 5.xii.2005 , coll. Haiyuan Yao ; 1 nymph on slides and 14 nymphs, Ledong County , Jianfengling National Nature Reserve ( 18.76°N , 108.89°E , alt. 800m ), 28.xi.2011 , coll. Weifang Shi. Distribution and biology. China ( Guangdong , Hainan , Hong Kong ). This species is widespread in southern China in association with the stone surfaces in slow-flowing or lentic habitat of streams. Comments. Described originally based on nymph and imago from Hong Kong in the genus Chopralla (Tong and Dudgeon 2003) , this species was moved to the subgenus Chopralla of Bungona by Salles et al. (2016) . Bungona ( Ch. ) fusina appears to be closely related to B. ( Ch. ) colorata from Vietnam based on structure, however, the body colour pattern, in particular of pro- and mesonotum ( Figs 52, 59 ), is distinctly different from the latter. Furthermore, the following combination of characteristics also can be useful to distinguish them: (1) the prostheca of right mandible bifurcated and plumose ( Fig. 51 ) (vs. the right prostheca plumose but not bifurcated in B. colorata ); (2) tergites V–X with acute triangular spines on posterior margins ( Fig. 54 ) (vs. tergites IV–X with such spines in B. colorata ); (3) gill I less than 4 times as long as wide, and other gills relatively broad, much less than 2.5 times as long as wide) ( Figs 55–58 ) (vs. in B. colorata , gill I more than 5 times as long as wide and other gills narrow-elongate and at least 2.5 times as long as wide).