Stegana (Steganina) cordhirsuta Wang & 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 cordhirsuta

description: Stegana (Steganina) cordhirsuta Wang & Chen, sp. nov.
(Figs. 6I, 6J, 31)
Diagnosis. This species resembles S. (S.) sphaerica Wang, Gao, & Chen, 2013 in the shape of aedeagal sheath (as fig. 10E, F in Wang et al. 2013, Fig. 31C), but can be distinguished from the latter by having the surstylus with 1 peg-like tooth near distal margin (Fig. 31A); the subepandrial sclerite slightly vaulted, deeply split medially and broadened laterally (Fig. 31D).
Description. Male and female: First flagellomere yellow on basal 1/3, black on distal 2/3. Clypeus brown medially, yellow laterally. Mesonotum mostly brownish, with 3 indistinct, longitudinal yellow stripes medially and sublaterally (Fig. 6I). Katepisternum mostly yellowish, brown on posterior corner (Fig. 6J). Scutellum mostly brownish, brown anteriorly and black along posterior margin (Fig. 6I). Halter mostly grey (Fig. 6J). Fore femur with a row of 5 or 6 long setae on distal part of posteroventral surface. Abdominal tergites mostly yellow, dark brown near distal margin, lacking pubescence (Fig. 31A). Cercus with much pubescence (Fig. 31A). Hypandrium roundly expanded anteromedially (Fig. 31B). Pregonite large, lacking sensillum (Fig. 31B, C). Aedeagus rounded distally, with much pubescence distoventrally (Fig. 31B, C). Aedeagal sheath distally dorsad curved and with some minute, serrated processes (Fig. 31C).
Measurements and indices. BL = 3.40 mm in holotype (2.97–3.27 in 5♂, 3.29 in 1♀ paratypes), ThL = 1.50 mm (1.37–1.70 in ♂, 1.80 in ♀), WL = 2.50 mm (1.90–2.50 in ♂, 3.07 in ♀), WW = 1.00 mm (1.03–1.20 in ♂, 1.10 in ♀), arb = 11/5 (11–13/4–6), avd = 0.90 (0.67–1.11), adf = 2.00 (1.50–3.00), flw = 2.40 (2.00–2.50), FW/HW = 0.32 (0.34–0.45), ch/o = 0.22 (0.14–0.29), prorb = 0.87 (1.46–1.88), rcorb = 0.40 (0.54–0.88), vb = 0.50 (0.33–0.67), dcl = 0.26 (0.32–0.50), presctl = 0.58 (0.53–0.67), sctl = 2.14 (1.73–2.50), sterno = 0.60 (0.56–0.71), orbito = 1.43 (1.67–2.50), dcp = 0.21 (0.18–0.23), sctlp = 2.00 (1.43–2.22), C = 2.03 (1.73–2.41), 4c = 1.25 (1.04–1.38), 4v = 2.06 (1.69–2.20), 5x = 1.57 (1.29–2.40), ac = 20.00 (14.50–22.00), M = 0.69 (0.51–0.75), C3F = 0.70 (0.68–0.80).
Type materials. Holotype ♂ (SCAU, No. 121099, DNA #1042), CHINA: Wangtianshu, Mengla, Yunnan, 21°36'09''N, 101°35'06''E, alt. 660m, 21.iv.2007, ex tree trunk, H.W. Chen. Paratypes: 15♂, 1♀ (SCAU, 121100– 08, 125579–85, DNA #1345, 1411), Yixiang, Pu'er, Yunnan, 22°44'19''N, 101°07'01''E, alt. 1420m, 14♂, 1♀ on 30.ix.2011, 1♂ on 9.v.2012, ex tree trunks, H.W. Chen, J.J. Gao.
Distribution. China (Yunnan).
Etymology. A combination of the Latin words " cordatus " (= cord) and '' hirsutus '' (= hirsute), referring to the aedeagus medially with pubescence.
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 60-61, DOI: 10.11646/zootaxa.5250.1.1, http://zenodo.org/record/7705657