Stegana (Steganina) magniflava 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 : 82-83

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

( Fig. 11A, 11B )

Diagnosis. This species differs from the other Steganina species in having the large body size (BL = 3.32 mm in holotype) and the yellow body color ( Fig. 11A, B ).

Remarks. The terminalia of the only male specimen was partly damaged (probably eaten by a cockroach) and 11A). Katepisternum yellowish ( Fig. 11B ). Halter mostly grey ( Fig. 11B ). Fore femur with a row of 4 or 5 strong setae on distal part of posteroventral surface.Abdominal tergites brownish yellow ( Fig. 11A, B ); sternites brownish, about 2 times as wide as long.

Measurements and indices. BL = 3.32 mm in holotype, ThL = 1.49 mm, WL = 3.19 mm, WW = 1.33 mm, arb = 7/4, avd = 0.84, adf = 1.17, flw = 2.67, FW/HW = 0.35, ch/o = 0.31, prorb = 0.85, rcorb = 0.67, vb = 0.66, dcl = 0.53, presctl = 0.59, sctl = 1.96, sterno = 0.84, orbito = 1.67, dcp = 0.32, sctlp = 1.74, C = 1.77, 4c = 1.02, 4v = 1.48, 5x = 1.37, ac = 10.73, M = 0.48, C3F = 0.67.

Type material. Holotype ♂ ( SCAU, No. 125788, DNA #2078), Muyiji Park, Ximeng , Yunnan, 22°37'15''N, 99°35'42''E, alt. 1200m, 29.iv.2016, ex tree trunk, J. Huang.

Distribution. China (Yunnan).

Etymology. A combination of the Latin words " magnus " (= large) and " flavus " (= yellow), referring to the large body size and the yellow body color.

Figures

FIGURE 11. Head, thorax, and abdomen in dorsal and lateral views: A, B. Stegana (Steganina) magniflava Cui & Chen, sp. nov.; C, D. S. (S.) mailangang Li & Chen, sp. nov.; E, F. S. (S.) menghai Zhang & Chen, sp. nov.; G, H. S. (S.) menglian Li & Chen, sp. nov.; I, J. S. (S.) minutiflava Li & Chen, sp. nov.