Amiota tentacula, 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 : 1386-1387

AMIOTA TENTACULA SP. NOV.

( FIG. 10)

urn:lsid:zoobank.org:act:7229F428-9492-4D1A-808F-83A5311215DB

Holotype: SCAU, DIP 111463 , ♂ (19 July 2017).

Type locality: China: Fengtongzhai, Baoxing , Sichuan, 30°32′42″N, 102°54′24″E, elevation 1400 m, Y.L. Wang .

SPECIES DELIMITATION OF AMIOTA 1387

Paratype: SCAU, DIP 111464 , one ♂ (19 July 2017) . China: same data as holotype .

Etymology: From Latin tentaculum, meaning feeler or tentacle, referring to the tentacle-like aedeagus.

Diagnosis: This species resembles A. onchopyga in the male terminalia, but can be distinguished from it by the paramere being broadened and strongly sclerotized, distally bifurcated and curved, with two serrated processes on the outer process ( Fig. 10D, E). In A. onchopyga , the paramere is slender, and hook shaped apically (as shown by Nishiharu, 1979: fig. 2E).

Measurements and indices: BL = 2.88 mm (3.13 mm in one ♂ paratype), ThL = 1.21 mm (1.23 mm), WL = 2.36 mm (2.38 mm), WW = 1.19 mm (1.20 mm), arb = 4/3 (5/3), avd = 0.77 (1.31), adf = 1.21 (1.20), flw = 2.43 (2.46), FW/HW = 0.32 (0.44), ch/o = 0.11 (0.10), prorb = 0.71 (0.96), rcorb = 0.51 (0.63), vb = 0.87 (0.79), dcl = 0.62 (0.76), presctl = 0.68 (0.66), sctl = 1.15 (1.07), sterno = 0.74 (0.88), orbito = 1.29 (1.76), dcp = 0.19 (0.29), sctlp = 1.05 (1.16), C = 2.61 (1.84), 4c = 1.58 (1.51), 4v = 2.52 (2.79), 5x = 1.34 (1.28), ac = 2.87 (3.52), M = 0.72 (0.57), C3F = 0.67 (0.62).

Description

Male terminalia ( Fig. 10A–E): Epandrium nearly separated mid-dorsally, with ca. 14 setae near posterior and ventral margins per side. Surstylus with sparse pubescence dorsally and one or two aristate processes on mesal surface, 18 long prensisetae on distal margin and a finger-like process at posteroventral corner. Anterior portion of hypandrium entirely thin. Aedeagus slender. Aedeagal apodeme strongly curved.