Stegana (Steganina) tentaculifera, Chen, Xi-Peng & Chen, Hong-Wei, 2012

Chen, Xi-Peng & Chen, Hong-Wei, 2012, Ten new species of the Stegana (Steganina) shirozui species group (Diptera, Drosophilidae) from China, Zootaxa 3333, pp. 24-37 : 30-31

Stegana (Steganina) tentaculifera sp. nov.

( Figs 35–40 )

Diagnosis. Aedeagus with 2 rows of serrated, minute processes on ventral surface ( Fig. 39 ), and sparse, serrated, minute processes on dorsal surface ( Fig. 40 ).

Description. Male terminalia: Epandrium holistically broadened, wider than 3/5 high, roundly protruded ventrally ( Fig. 35 ). Cercus with dense pubescence dorsally ( Fig. 35 ). Surstylus with 6 prensisetae submedially ( Fig. 36 ). Tenth sternite slightly protruded basolaterally ( Fig. 37 ). Paramere with ca. 5 sensilla ( Figs 38, 39 ). Aedeagus with globular projections bearing finely serrated processes basally, slightly round on opening in ventral view ( Figs 38, 39 ). Gonopods round apically, not protruded dorsomedially ( Fig. 40 ).

Measurements. BL = 3.18 mm in holotype (range in 33 paratypes: 2.88–3.21 mm), ThL = 1.94 mm (1.90– 2.10 mm), WL = 3.65 mm (3.32–3.77 mm), WW = 1.58 mm (1.52–1.66 mm), arb = 9/6 (8–9/6), avd = 0.75 (0.67– 0.83), adf = 1.63 (1.65–1.86), flw = 1.75 (1.63–1.84), FW/HW = 0.40 (0.39–0.40), ch/o = 0.20 (0.19–0.20), prorb = 1.16 (1.15–1.25), rcorb = 0.63 (0.58–0.67), vb = 0.40 (0.36–0.40), dcl = 0.36 (0.38–0.55), presctl = 0.47 (0.43– 0.63), sctl = 1.25 (1.21–1.53), sterno = 0.86 (0.81–0.92), orbito = 2.05 (1.75–2.00), dcp = 0.17 (0.17–0.19), sctlp = 1.62 (1.53–1.84), C = 2.12 (1.76–2.25), 4c = 1.11 (1.10–1.21), 4v = 1.86 (1.74–2.23), 5x = 1.27 (1.23–1.60), ac = 10.25 (9.15–12.00), M = 0.51 (0.42–0.58), C3F = 0.71 (0.63–0.74).

Type material. Holotype 3 ( SCAU, No. 120770), CHINA: Shennongjia, Hubei, 31˚49’N, 109˚41’E, 1900 m, 1–3.viii.2005, HW Chen. Paratypes: CHINA: 33 ( SCAU, Nos 120771 -73), same data as holotype.

Distribution. China (Hubei).

Etymology. A combination of the Latin word tentaculum (= fine processus) and the Greek word ferein (= to bear), referring to the aedeagus with tentacle-like setae apically.

Figures

FIGURES 35 – 40. Stegana (Steganina) tentaculifera sp. nov., male terminalia: 35. Epandrium, cercus and surstylus; 36. surstylus; 37. 10 th sternite; 38, 39. hypandrium, aedeagus and aedeagal apodeme; 40. gonopods. Scale bars: 0.1 mm.