Amiota cyclophylla, 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 : 1380-1381

AMIOTA CYCLOPHYLLA SP. NOV.

( FIG. 4)

urn:lsid:zoobank.org:act:A3839367-0260-4C9A-9BD9-A36AE4FDDC3C

Holotype: SCAU, DIP 112290 , ♂ (2 October 2011).

Ty p e l o c a l i t y: C h i n a: Yi x i a n g, P u ’e r, Yu n n a n, 22°44′21″N, 101°06′58″E, elevation 1400 m, H.W. Chen.

Paratype: SCAU, DIP 112291 , one ♂ (13 May 2012). China: Hesong, Menghai , Yunnan, 21°50′17 ″N, 100°05′48″E, elevation 1600 m, H.W. Chen .

Etymology: A combination of the Greek κύκλος, meaning circle, and φύλλον, meaning leaf or sheet, referring to the vertical lobe of the apically rounded gonopod.

Diagnosis: This species is similar to A. flavipes in the male terminalia, but can be distinguished from it by the vertical lobe of the gonopod being oblong, lacking any process, strongly sclerotized ( Fig. 4C). In A. flavipes , the vertical lobe of the gonopod is nearly rounded, pointed apicolaterally, with one small process apicomedially (as shown by Xu et al., 2007: fig. 3).

Measurements and indices: BL = 3.85 mm (3.60 mm in one ♂ paratype), ThL = 1.85 mm (1.70 mm), WL = 3.00 mm (3.00 mm), WW = 1.50 mm (1.35 mm), arb = 3/2 (4/3), avd = 0.63 (0.57), adf = 2.00 (1.40), flw = 2.00 (1.40), FW/HW = 0.45 (0.41), ch/o = 0.07 (0.08), prorb = 0.91 (1.00), rcorb = 0.82 (0.64), vb = 0.38 (0.50), dcl = 0.69 (0.64), presctl = 0.44 (0.52), sctl = 1.20 (1.33), sterno = 0.83 (0.87), orbito = 1.60 (1.40), dcp = 0.35 (0.35), sctlp = 1.11 (1.25), C = 2.00 (1.75), 4c = 1.59 (1.65), 4v = 2.80 (2.76), 5x = 1.30 (1.33), ac = 5.4 (4.67), M = 0.76 (0.71) and C3F = 0.74 (0.69).

Description

Male terminalia ( Fig. 4A–D): Epandrium strongly constricted mid-dorsally, with approximately ten setae

SPECIES DELIMITATION OF AMIOTA 1381

near posterior margin and five setae in ventral lobe per side. Surstylus not pubescent, with six long prensisetae on distal margin, several thin setae on ventral margin and outer surface. The tenth sternite is nearly bilobed, but not separated mid-dorsally; laterally, narrowly fused to surstyli. Anterior portion of hypandrium entirely thin. Paramere lobe shaped, pointed apically, with two processes laterally and approximately eight sensilla medially. Aedeagus is separated into a pair of simple rods, each fused to the base of the parameres. Aedeagal apodeme strongly curved.