Bungona (Chopralla) liebenauae ( Soldán, Braasch & Muu, 1987 ), Braasch & Luu, 1987

Shi, Weifang & Tong, Xiaoli, 2019, Genus Bungona Harker, 1957 (Ephemeroptera: Baetidae) from China, with descriptions of three new species and a key to Oriental species, Zootaxa 4586 (3), pp. 571-585 : 582-583

Bungona (Chopralla) liebenauae ( Soldán, Braasch & Muu, 1987)

( Figs 60–67 )

Centroptella liebenauae: Soldán, Braasch & Muu, 1987: 342 .

Chopralla liebenauae: Tong & Dudgeon, 2003b: 17 .

Bungona (Chopralla) liebenauae: Salles, Gattolliat & Sartori, 2016: 104 .

Material examined. CHINA. Guangdong: 70 nymphs, Huizhou, Nankunshan Nature Reserve (23.63°N, 113.89°E, alt. 670m), 26.v.2003, coll. Xiaoli Tong ; 1 nymph, Yangchun, Xinning, Hecang River (22.5°N, 111.5°N, alt. 440m), 16.v.2004, coll. Sanbao Tang ; 1 nymph on slides and 95 nymphs, Xinyi, Tianmashan Mountain (22.46°N, 110.69°E, alt. 380m), 2.iv.2011 and 19.ix.2011, coll. Weifang Shi. Guangxi: 102 nymphs, Jinxiu, Dayaoshan National Nature Reserve (24.12°N, 110.21°E, alt. 780m), 26.ix.2011, coll. Weifang Shi & Shulan Yang ; 5 nymphs, Jinxiu, Laoshan Forest Station (24.12°N, 110.20°E, alt. 920m), 17.xi.2011, coll. Weifang Shi & Shulan Yang ; 2 nymphs on slides and 16 nymphs, Jinxiu, Shibajia Forest Station (24.20°N, 110.29°E, alt. 770m), 18.xi.2011, coll. Weifang Shi & Shulan Yang. Yunnan: 1 nymph, Yangbi County, Pingpo Town, Pingpo Bridge (25.59°N, 100.05°E, alt. 1400m), 21.vii.2013, coll. Hongxing Chen.

Distribution and biology. China (Yunnan, Guangxi, Guangdong); Vietnam. The nymphs ( Fig. 59 ) are usually found in slow current reaches of clean mountain streams ( Fig. 67 ) and sometimes with substantial populations on the stone surfaces as indicated from the specimens listed above.

Comments. Described based on nymphs and imagoes from Vietnam in the genus Centroptella ( Soldán et al. 1987) , this species was transferred to the subgenus Chopralla of Bungona by Salles et al. (2016) based on the tarsal claws bearing two rows of denticles. Bungona (Ch.) liebenauae is here recorded from China for the first time. This species has an unusual characteristics which can easily distinguish it from its congeners: the presence of a pair of submarginal median tubercles posteriorly on pronotum ( Figs 62–63 ). Other features, such as base of glossa not reaching inner 1/3 of paraglossa ( Fig. 61 ), dentate tarsal claws ( Fig. 64 ) and characteristic contrasting body colour pattern ( Fig. 66 ), clearly fit the concept of Chopralla proposed by Salles et al. (2016).

Figures

FIGURE 67. Habitat of Bungona (Chopralla) liebenauae (Soldán, Braasch & Muu, 1987) in China.

FIGURES 60–66. Nymph of Bungona (Chopralla) liebenauae (Soldán) Braasch & Luu (60) right mandible; (61) labium (left: dorsal view; right: ventral view); (62) lateral view of head and prothorax; (63) dorsal view of prothorax; (64) claw; (65) paraprocts; (66) habitus of female nymph (dorsal view).

FIGURES 50–59. Nymph of Bungona (Chopralla) fusina Tong & Dudgeon (50) left mandible; (51) right mandible; (52) pro- and mesonotum; (53) claw; (54) abdominal terga V–X; (55–58) gills 1, 3, 5, 7; (59) habitus of female nymph (dorsal view).