Stegana (Steganina) kanda Cui & Chen

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 : 77

Stegana (Steganina) kanda Cui & Chen , sp. nov.

( Figs. 10A, 10B , 45 )

Diagnosis. This species is similar to S. (S.) hirticlavata sp. nov. in the face mostly yellow, black near lower margin, but can be distinguished from the latter by having the first flagellomere yellow on basal 2/3, black on distal 1/3 ( Fig. 10B ); the facial carina present; the pregonite small, with 7 or 8 sensilla, lacking long pubescence distally ( Fig. 45B, C ); the aedeagus with 1 pair of sclerotized and 1 pair of membranous lobe-shaped processes ( Fig. 45B, C ).

Description. Male: Clypeus and palpus yellow. Mesonotum and scutellum yellow ( Fig. 10A ). Katepisternum yellowish ( Fig. 10B ). Halter mostly grey ( Fig. 10B ). Fore femur with 3 strong setae on distal part of posteroventral surface. Abdominal tergites yellow ( Fig. 10A, B ); sternites yellow, about 2 times as wide as long. Male terminalia ( Fig. 45 ): Epandrium with 11 setae on dorsal to posterior portions per side ( Fig. 45A ). Surstylus with some setulae near distal margin, lacking pubescence ( Fig. 45A ). Cercus with much pubescence ( Fig. 45A ). Hypandrium slightly expanded anteromedially ( Fig. 45B, C ). Aedeagal sheath acute apically, with 1 pair of acute processes subapically ( Fig. 45D, E ). Subepandrial sclerite broadened, slightly expanded distally ( Fig. 45F ).

Measurements and indices. BL = 2.08 mm, ThL = 0.89 mm, WL = 1.89 mm, WW = 0.94 mm, arb = 6/4, avd = 1.08, adf = 1.23, flw = 2.29, FW/HW = 0.35, ch/o = 0.3 8, prorb = 0.17, rcorb = 0.54, vb = 0.45, dcl = 0.69, presctl = 0.53, sctl = 2.06, sterno = 0.60, orbito = 2.00, dcp = 0.38, sctlp = 1.23, C = 1.61, 4c = 1.44, 4v = 2.02, 5x = 1.29, ac = 6.00, M = 0.72, C3F = 0.65.

Type material. Holotype ♂ ( SCAU, No. 125578, DNA #2750), CHINA: Guanlei, Mengla , Yunnan, 21°38'39''N, 101°09'52''E, alt. 570m, 24.iv.2016, ex tree trunk, J. Huang.

Distribution. China (Yunnan).

Etymology. From the word " kanda " in Va language from the Va nationality living in Yunnan, China, referring to the meaning "a serenity place".

Figures

FIGURE 10. Head, thorax, and abdomen in dorsal and lateral views: A, B. Stegana (Steganina) kanda sp. nov.; C, D. S. (S.) labao Cui & Chen, sp. nov.; E, F. S. (S.) lancang Li & Chen, sp. nov.; G, H. S. (S.) latifoliacea Wang & Chen, sp. nov.; I, J. S. (S.) liusanjieae Li & Chen, sp. nov.

FIGURE 45. Stegana (Steganina) kanda Cui & Chen, sp. nov., male terminalia. A. Epandrium, surstylus, and cercus in lateral view; B, C. Hypandrium, pregonite, aedeagus, and phallapodeme in ventral and lateral views; D, E. Aedeagal sheath in ventral and lateral views; F. Subepandrial sclerite in ventral view.