Stegana (Steganina) multiprocera Li & 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 : 87-88

Stegana (Steganina) multiprocera Li & Chen , sp. nov.

( Figs. 12A, 12B , 53 )

Diagnosis. This species is similar to S. (S.) fuscipes sp. nov. in the shape of male terminalia ( Figs. 41 , 53 ), but can be distinguished from the latter by having the clypeus brown; the cercus with much pubescence ( Fig. 53A ); the basolateral processes of aedeagus not bifurcated distally ( Fig. 53C, D ); the aedeagal sheath with some minute, serrated processes distally ( Fig. 53E, F ).

Description. Male: First flagellomere black. Palpus yellow, brownish distally. Mesonotum brownish medially, brownish yellow laterally (Fig. 12A, B). Katepisternum brown (Fig. 12B). Scutellum brown, dark brown near distal margin ( Fig. 12A ). Halter mostly yellow ( Fig. 12B ). Fore femur with a row of 3 long setae on distal part of posteroventral surface. Abdominal tergites mostly brown ( Fig. 12A, B ); sternites brown, about 2 times as wide as long. Male terminalia ( Fig. 53 ): Epandrium with ca. 11 setae on dorsal to posterior portions per side ( Fig. 53A ). Surstylus with numerous minute, serrated processes on outer surface, 1 peg-like tooth and some setulae near distal margin ( Fig. 53A, B ). Hypandrium slightly expanded anteromedially, with 2 spinous processes (pregonite?) ( Fig. 53C, D ). Pregonite blurry or absent ( Fig. 53C, D ). Aedeagus with 4 pairs of processes basolaterally and much pubescence distally ( Fig. 53C, D ). Subepandrial sclerite slightly rectangle distally ( Fig. 53G ).

Measurements and indices. BL = 2.92 mm in holotype, ThL = 1.48 mm, WL = 2.04 mm, WW = 1.20 mm, arb = 6/5, avd = 0.82, adf = 1.57, flw = 1.71, FW/HW = 0.41, ch/o = 0.16, prorb = 1.08, rcorb = 0.85, vb = 0.33, dcl = damaged, presctl = damaged, sctl = 1.83, sterno = damaged, orbito = 2.50, dcp = damaged, sctlp = 2.00, C = 2.04, 4c = 1.00, 4v = 1.48, 5x = 1.88, ac = 16.50, M = 0.65, C3F = 0.73.

Type material. Holotype ♂ ( SCAU, No. 125630, DNA #544, 2688), CHINA: Diaoluoshan, Lingshui , Hainan, 18°43'51''N, 109°51'28''E, alt. 980m, 3.xii.2003, ex tree trunk, H.W. Chen.

Distribution. China (Hainan).

Etymology. A combination of the Latin words " multus " (= multiple) and " procerus " (= process), referring to the aedeagus basolaterally with 4 pairs of processes.

Figures

FIGURE 12. Head, thorax, and abdomen in dorsal and lateral views: A, B. Stegana (Steganina) multiprocera Li & Chen, sp. nov.; C, D. S. (S.) nayun Li & Chen, sp. nov.; E, F. S. (S.) nigridentata Li & Chen, sp. nov.; G, H. S. (S.) otphylla Cui & Chen, sp. nov.; I, J. S. (S.) radiciflava Zhang & Chen, sp. nov.

FIGURE 41. Stegana (Steganina) fuscipes Li & Chen, sp. nov., male terminalia. A. Epandrium, surstylus, and cercus in lateral view; B. Surstylus in ventral view; C, D. Hypandrium, pregonite, aedeagus, and phallapodeme in ventral and lateral views; E, F. Aedeagal sheath in ventral and lateral views; G. Subepandrial sclerite in ventral view.

FIGURE 53. Stegana (Steganina) multiprocera Li & Chen, sp. nov., male terminalia. A. Epandrium, surstylus, and cercus in lateral view; B. Surstylus in ventral view; C, D. Hypandrium, pregonite, aedeagus, and phallapodeme in ventral and lateral views; E, F. Aedeagal sheath in ventral and lateral views; G. Subepandrial sclerite in ventral view.