Stegana (Steganina) otphylla Cui & 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 otphylla

description: Stegana (Steganina) otphylla Cui & Chen, sp. nov.
(Figs. 12G, 12H, 56)
Diagnosis. This species differs from the other Steganina species in having the pregonite basally with a pair of large, pubescent flaps (Fig. 56B, C); the aedeagus distodorsally triangular, distolaterally protruding, with numerous minute, serrated processes near margin (Fig. 56B, C).
Description. Male and female: First flagellomere brown. Clypeus yellow. Mesonotum dark brown to black medially, brown laterally (Fig. 12G). Katepisternum yellowish, brownish on anterior corner (Fig. 12H). Scutellum black, yellow at tip (Fig. 12G).Halter mostly grey (Fig. 12H). Fore femur with a row of 3 or 4 long setae on distal part of posteroventral surface. Abdominal tergites mostly black (Fig. 12G, H); sternites yellow, slightly wider than long. Male terminalia (Fig. 56): Epandrium with ca. 12 setae on dorsal to posterior portions per side (Fig. 56A). Surstylus with some minute, serrated processes on outer surface, 1 peg-like tooth and several setulae near distal margin, lacking pubescence (Fig. 56A). Cercus lacking pubescence (Fig. 56A). Hypandrium expanded anteromedially (Fig. 56B, C). Pregonite fused and large, with 3 sensilla medially (Fig. 56B, C). Aedeagal sheath distally dorsad curved and with several minute, serrated processes (Fig. 55D, E). Subepandrial sclerite slightly expanded distally (Fig. 55F).
Measurements and indices. BL = 2.77 mm in holotype (2.67–3.08 in 3♂, 2.81–3.21 in 2♀ paratypes), ThL = 1.41 mm (1.42–1.49 in ♂, 1.45–1.49 in ♀), WL = 2.67 mm (2.79–2.97 in ♂, 2.82–3.01 in ♀), WW = 1.34 mm (1.13–1.21 in ♂, 1.07–1.28 in ♀), arb = 6/4 (6–7/4–5), avd = 0.72 (0.67–0.86), adf = 0.77 (0.82–1.00), flw = 1.80 (1.67–2.33), FW/HW = 0.40 (0.37–0.41), ch/o = 0.39 (0.28–0.47), prorb = 1.47 (0.71–1.42), rcorb = 1.16 (0.71–0.96), vb = 0.50 (0.46–1.06), dcl = 0.22 (0.22–0.30), presctl = 0.51 (0.34–0.51), sctl = 0.91 (1.14–2.75), sterno = damaged (0.76–1.50), orbito = 2.07 (1.64–2.00), dcp = 0.17 (0.17–0.19), sctlp = 1.17 (1.49–2.51), C = 1.93 (1.59–2.09), 4c = 1.30 (1.14–1.40), 4v = 2.23 (1.72–2.49), 5x = 2.07 (1.22–2.00), ac = 9.33 (9.46–14.00), M = 0.72 (0.50–0.76), C3F = 0.66 (0.54–0.72).
Type materials. Holotype ♂ (SCAU, No.121179, DNA #804), CHINA: Xujiaba, Jingdong, Yunnan, 24°32'38''N, 100°01'30''E, alt. 2200m, 27.vii.2006, ex tree trunk, H.L. Cao. Paratypes: 1♂ (SCAU, No. 121180), other data same as holotype; 1♂ (SCAU, No. 125613, DNA #2186), Wuliangshan, Jingdong, Yunnan, 24°20'40''N, 100°48'01''E, alt. 2200m, 27.vii.2006, ex tree trunk, H.L. Cao; 2♀ (SCAU, Nos. 125611, 12, DNA #2386), Yixiang, Pu'er, Yunnan, 22°44'19''N, 101°07'01''E, alt. 1400m, 13.v.2012, ex tree trunks, J.J. Gao; 1♂ (SCAU, No. 125610, DNA #1880), Fengtongzhai, Baoxing, Sichuan, 30°32'42''N, 102°54'24''E, alt. 1700m, 9.v.2019, ex tussock, L. Gong.
Distribution. China (Sichuan, Yunnan).
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 page 91, DOI: 10.11646/zootaxa.5250.1.1, http://zenodo.org/record/7705657