Stegana (Steganina) cinereipecta Zhang & Chen, sp. nov.
Creators: name: WANG, YA-LIAN
name: LI, BING-XUE
name: CUI, MENG-DI
name: ZHANG, YUAN
name: WANG, LE
name: ZHANG, CAI-HONG
name: TSAUR, SHUN-CHERN
name: CHEN, HONG-WEI
name: HUANG, JIA
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Stegana
Stegana cinereipecta

description: Stegana (Steganina) cinereipecta Zhang & Chen, sp. nov.
(Figs. 6G, 6H, 30)
Diagnosis. This species is similar to S. (S.) convena Wang, Gao, & Chen, 2013 in the shape of hypandrium and aedeagal sheath (as fig. 1C, D in Wang et al. 2013, Fig. 30B–E), but can be distinguished from the latter by having the katepisternum mostly grey, anteriorly slightly brownish (Fig. 6H); the surstylus with 1 peg-like tooth near distal margin (Fig. 30A); the subepandrial sclerite slightly rounded, deeply split medially (Fig. 30F).
Description. Male and female: First flagellomere brown. Clypeus yellow. Mesonotum brown medially, yellow to brownish laterally in male, entirely brown to dark brown in female (Fig. 6G). Scutellum brown, yellow at tip (Fig. 6G). Halter mostly grey (Fig. 6G). Fore femur with 3 thin, long setae on distal part of posteroventral surface. Abdominal tergites dark brown (Fig. 6G, H); sternites brown, about 2 times as wide as long. Male terminalia (Fig. 30): Epandrium with ca. 17 setae on dorsal to posterior portions per side (Fig. 30A). Surstylus slightly squared, lacking serrated process, with several setulae near distal margin and pubescence posteriorly (Fig. 30A). Cercus with much pubescence (Fig. 30A). Hypandrium expanded anteromedially (Fig. 30B, C). Pregonite small, with 1 sensillum (Fig. 30B, C). Aedeagus expanded distally in ventral view, with numerous minute, serrated processes basolaterally and some pubescence distoventrally (Fig. 30B, C). Aedeagal sheath distally with numerous minute, serrated processes (Fig. 30D, E).
Measurements and indices. BL = 3.33 mm in holotype (2.67–2.80 in 2♂, 3.00– 3.87 in 2♀ paratypes), ThL = 1.67 mm (1.33 in ♂, 1.33–1.53 in ♀), WL = 2.40 mm (2.13–2.33 in ♂, 2.33–2.67 in ♀), WW = 1.20 mm (1.20–1.33 in ♂, 1.20–1.33 in ♀), arb = 6/4 (7–8/4–6), avd = 0.50 (0.50–1.14), adf = 1.25 (0.88–1.67), flw = 1.50 (1.38–2.00), FW/HW = 0.36 (0.36–0.50), ch/o = 0.31 (0.23–0.40), prorb = 1.07 (1.20–1.80), rcorb = 0.67 (0.67–1.20), vb = 0.33 (0.22–0.38), dcl = 0.57 (0.51–0.68), presctl = 0.72 (0.46–0.81), sctl = 1.72 (1.50–3.00), sterno = 0.83 (0.83–1.00), orbito = 2.00 (1.00–2.00), dcp = 0.19 (0.13–0.24), sctlp = 3.00 (1.80–2.50), C = 1.75 (1.50–2.55), 4c = 1.50 (1.50– 2.00), 4v = 2.50 (1.25–3.00), 5x = 1.50 (1.50–2.00), ac = 8.00 (6.67–12.00), M = 0.75 (0.75–1.00), C3F = 0.83 (0.80–0.83).
Type materials. Holotype ♂ (SCAU, No. 125636, DNA #1443), CHINA: Yixiang, Pu'er, Yunnan, 22°44'19''N, 101°07'01''E, alt. 1420m, 13.v.2012, ex tree trunk, H.W. Chen. Paratypes: 2♂, 2♀ (SCAU, Nos. 125637–40, DNA #1944), other data same as holotype.
Distribution. China (Yunnan).
Etymology. A combination of the Latin words '' cinereus '' (= grey) and '' pectus '' (= thorax), referring to the mostly grey katepisternum.
description: Published as part of 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), pp. 1-109 in Zootaxa 5250 (1) on pages 59-60, DOI: 10.11646/zootaxa.5250.1.1, http://zenodo.org/record/7705657