Stegana (Steganina) pinguifoliacea, 2019

Li, Bingxue, Zhang, Yuan & Chen, Hongwei, 2019, Nine new species of the subgenus Stegana (Steganina) from China, with DNA barcoding information (Diptera: Drosophilidae), Zootaxa 4576 (1), pp. 81-108 : 94-95

publication ID	https://doi.org/10.11646/zootaxa.4576.1.4
publication LSID	lsid:zoobank.org:pub:A521DFD3-564F-4A15-8F59-9E946F169C4A
DOI	https://doi.org/10.5281/zenodo.5334820
persistent identifier	https://treatment.plazi.org/id/03D787DC-FFAF-FFD3-C69C-5ACCFE11FEB6
treatment provided by	Plazi (2019-04-03 06:28:16, last updated 2024-11-26 22:59:00)
scientific name	Stegana (Steganina) pinguifoliacea
status	sp. nov.

Treatment

Stegana (Steganina) pinguifoliacea View in CoL sp. nov.

( Figs 2D View FIGURE 2 , 7 View FIGURE 7 )

Diagnosis. This species resembles S. longifibula Takada, 1968 in some characters of the body colour patterns ( Fig. 2D View FIGURE 2 ), but can be distinguished by the male terminalia, in this species, the surstylus without minute projections, except acute apically ( Fig. 7A View FIGURE 7 ); aedeagus medially expanded in lateral view, strongly narrowed in ventrally ( Fig. 7B, C View FIGURE 7 ); gonopods nearly vaulted in ventral view ( Fig. 7D View FIGURE 7 ). The minimum interspecific genetic distance to S. longifibula is 4.3%, which is smaller than to other species ( Table 2).

Description. Male: Frons black. First flagellomere greish yellow. Clypeus and palpus yellow. Mesonotum brown to dark brown, with 1 thin, unconspicuous, yellow longitudinal stripe medially, yellowish brown laterally. Katepisternum entirely white. Scutellum black. Femur of foreleg with 4 long erect setae near distal part of posteroventral surface. Abdominal tergites nearly black. Male terminalia ( Fig. 7 View FIGURE 7 ): Epandrium slightly protruded ventrally, with ca. 15 setae on posterior portion per side. Surstylus with numerous setulae distally. Cercus lacking pubescence. Paramere with 2 setulae. Tenth sternite flat dorsolaterally.

Measurements. BL = 3.01 mm in holotype, ThL = 1.47 mm, WL = 2.95 mm, WW = 1.26 mm, arb = 6/4, avd = 0.62, adf = 1.36, flw = 1.87, FW/HW = 0.41, ch/o = 0.22, prorb = 1.30, rcorb = 0.73, vb = 0.52, dc1 = damaged, presct1 = damaged, sct1 = damaged, sterno = damaged, orbito = 1.73, dcp = 0.35, sct1p = 1.68, C = 2.08, 4c = 1.02, 4v = 1.55, 5x = 1.26, ac = 9.25, M = 0.45, C3F = 0.65.

Specimens examined. Holotype ♂ ( SCAU, No. 110944), China: Pangquangou, Jiaocheng , Shanxi, 37°04'47''N, 111°30'20''E, altitude 2200m, 30.vii.2016, tree trunk, L Zhu. GoogleMaps

Etymology. A combination of the Latin words: pinguis and foliaceous, reference to the aedeagus medially expanded in lateral view.

References

Takada, H. (1968) Drosophila survey of Hokkaido, XXVI. Descriptions of three new species of Drosophilidae from Japan. Journal of the Faculty of General Education, Sapporo University, 1, 119 - 129.

Figures

FIGURE 2. Habitus. A. Stegana (Steganina) toyaensis Okada & Sidorenko, 1992; B–J in holotype: B. Stegana (Steganina) latitabula sp. nov.; C. Stegana (Steganina) panda sp. nov.; D. Stegana (Steganina) pinguifoliacea sp. nov.; E. Stegana (Steganina) spatulata, sp. nov.; F. Stegana (Steganina) stachydifolia, sp. nov.; G. Stegana (Steganina) hirtifoliacea sp. nov.; H. Stegana (Steganina) unguiculata sp. nov.; I. Stegana (Steganina) biflava sp. nov.; J. Stegana (Steganina) flavivittata sp. nov.

FIGURE 7. Stegana (Steganina) pinguifoliacea sp. nov., male terminalia: A. Epandrium, surstylus and cercus (lateral view); B, C. Hypandrium, parameres, aedeagus and aedeagal apodeme (ventral and lateral views); D, E. Gonopods (ventral and lateral views); F. Tenth sternite (ventral view). Scale lines = 0.1 mm.