Stegana (Steganina) bacilla Chen & Aotsuka, 2004

WANG, YA-LIAN, LI, BING-XUE, CUI, MENG-DI, ZHANG, YUAN, WANG, LE, ZHANG, CAI-HONG, TSAUR, SHUN-CHERN, CHEN, HONG-WEI & HUANG, JIA, 2023, Revision of the subgenus Stegana (Steganina) from China, with assessment of species delimitation using DNA barcodes (Diptera, Drosophilidae), Zootaxa 5250 (1), pp. 1-109 : 40-41

Stegana (Steganina) bacilla Chen & Aotsuka, 2004

( Fig. 16 )

Stegana (Steganina) bacilla Chen & Aotsuka, 2004: 2785 .

Remarks. The specimens collected from Yunnan, China slightly differ from the type material from Ryukyu Islands, Japan (as fig. 9 in Chen & Aotsuka 2004) in the shape of distal portion of aedeagus and aedeagal sheath in ventral view ( Fig. 16C, E ). They were conservatively identified as conspecific.

Specimens examined. CHINA: 1♂, 5♀ ( SCAU, Nos. 125202–07, DNA #2730), Jinshan, Menglian , Yunnan, 22°19'29''N, 99°35'00''E, alt. 940m, 23–25.x.2017, ex tree trunks, H.W. Chen, L. Gong, B.X. Li; 9♂, 7♀ ( SCAU, Nos. 125208–23, DNA #2636, 2661, 2627), Menglun, Mengla , Yunnan, 21°47'29''N, 101°22'59''E, alt. 580m, 5♂, 7♀ on 16,17. iv.2007, 4♂ on 19.xii.2017, H.W. Chen, J.J. Gao, L. Gong; 8♂ ( SCAU, Nos. 125224–31, DNA #2639), Guanlei, Mengla , Yunnan, 21°38'39''N, 101°09'52''E, alt. 560m, 24.iv.2016, ex tree trunks, J. Huang, Y.Q. Liu; 3♂, 1♀ ( SCAU, Nos. 125232–35, DNA #1344, 1886), Wangtianshu, Mengla , Yunnan, 21°36'09''N, 101°35'06''E, alt. 680m, 2♂ on 27.ix.2011, 1♂, 1♀ on 30.ix.2011, ex tree trunks, H.W. Chen, J.J. Gao.

Distribution. China ( Taiwan, Yunnan*), Japan (Ryukyu Islands).

Figures

FIGURE 16. Stegana (Steganina) bacilla Chen & Aotsuka, 2004 from Mengla, Yunnan, China, male terminalia.A. Epandrium, surstylus, and cercus in lateral view; B. Surstylus in ventral view; C, D. Hypandrium, pregonite (pg), aedeagus, and phallapo-