Amiota jianjuni, Wang & Cao & Chen, 2020

Wang, Ya-Lian, Cao, Hui-Luo & Chen, Hong-Wei, 2020, Molecular phylogeny and species delimitation of Amiota alboguttata and Amiota basdeni species groups (Diptera: Drosophilidae) from East Asia, Zoological Journal of the Linnean Society 189, pp. 1370-1397 : 1386

AMIOTA JIANJUNI SP. NOV.

( FIG. 9)

urn:lsid:zoobank.org:act:5CF76C2B-0929-4560-8BE6-C6A67157C31D

Holotype: SCAU, DIP 111459 , ♂ (12 July 2007).

Type locality: China: Fengtongzhai, Baoxing , Sichuan, 30°32′42″N, 102°54′24″E, elevation 1600 m, J.J. Jiang .

Paratypes: SCAU, DIP 111460–111462 , three ♂ (17 June 2017). China: same data as holotype, Y. Lin, Y.L. Wang .

Etymology: Named in honour of the collector of this new species, Mr Jian-Jun Jiang (SCAU).

Diagnosis: This species is similar to A. angulisternita in the shape of the gonopod, but can be distinguished from it by the surstylus with seven prensisetae on the distal margin ( Fig. 9B); aedeagus submedially with one pointed process distinctly smaller than the other one ( Fig. 9D, E). In A. angulisternita , the surstylus has ~11 prensisetae on the distal margin; the aedeagus is distally bifurcated, with the two processes of nearly the same length (as shown by Chen et al., 2004: figs 2–4).

Measurements and indices: BL = 2.90 mm (2.91–3.19 mm in three ♂ paratypes), ThL = 2.00 mm (1.25–1.89 mm), WL = 2.50 mm (2.16–2.46 mm), WW = 1.60 mm (1.04– 1.59mm),arb =5/3(4–5/3),avd=0.80 (0.67–0.79),adf=1.40 (1.28–1.82), flw = 2.00 (1.35–1.91), FW/HW = 0.45 (0.46– 0.49), ch/o = 0.07 (0.08–0.11), prorb = 0.91 (0.90–1.00), rcorb = 0.81 (0.69–0.75), vb = 0.40 (0.28–0.48), dcl = 0.59 (0.56–0.71), presctl = 0.55 (0.51–0.53), sctl = 1.10 (1.09– 1.26), sterno = 0.70 (0.81–0.89), orbito = 1.40 (1.53–1.54), dcp = 0.30 (0.34–0.38), sctlp = 1.00 (1.05–1.15), C = 1.76 (1.75–1.81), 4c = 1.57 (1.57–1.62), 4v = 2.48 (2.46–2.64), 5x = 1.60 (1.28–1.74), ac = 4.71 (3.54–4.80), M = 0.48 (0.55–0.84), C3F = 0.69 (0.67–0.72).

Description

Male terminalia ( Fig. 9A–E): Epandrium constricted more than half width mid-dorsally, with ~11 setae near posterior and ventral margins per side. Surstylus slightly pubescent dorsally, with finger-like process at posteroventral corner, and a few, stout spinelike setae on inner surface. Anterior portion of hypandrium slightly broadened at middle. Paramere basally articulated with aedeagus, with approximately six sensilla medially. Aedeagus heavily sclerotized. Aedeagal apodeme strongly curved.