Calcyopa difoveata (Wehrli, 1943)

Figs 2–5, 14, 15, 20

Boarmia (Calichodes) difoveata Wehrli, 1943, in: Seitz, Gross-Schmett. Erde 4 (Suppl.): 544. Type-locality: “ West-Tien-Mu-Shan, Chekiang ” (West Tianmushan, Zhejiang Province, China)

Calichodes difoveata Wehrli: Fletcher, 1979, In: Nye IWB (ed.), The Generic Names of Moths of the World 3: 32; Parsons et al. 1999, in: Scoble, Geometrid Moths of the World, A Catalogue, 1: 100.

Aethalura lushanalis Sato, 1987, Japan Heterocerists’ J. 144: 289, 290, figs 3, 4, 8. Synonymized with C. difoveata by Stüning (2000).

Calcyopa difoveata: Stüning, 2000, Tinea 16 (Suppl. 1): 135, fig. 1507; Sato 2020, in: Kishida Y, Moths of Laos, Part 1, Tinea 25 (Suppl. 2): 81, pl. 28, fig. 30; Sato 2022, Tinea 26 (3): 228, 230, figs 9, 10, 24, 36.

Type material examined.

Lectotype: China – Zhejiang Province • ♂; Pz. Chekiang, West-tien-mu-shan (= Zhejiang, West Tianmushan); 1600 m; 26 Apr. 1932; H. Höne leg.; gen. prep. slide no. 2451 - DS; ZFMK (des. Stüning, 2000).

Paralectotypes: China – Zhejiang Province • 2 ♂♂, 1 ♀; same locality and collector as lectotype; 30 Apr. 1932; ZFMK . – Guangdong Province • 1 ♀; Lienping (Heyuan City, Lianping County); May; H. Höne leg.; coll. Wehrli, ZFMK . Remark: Wehrli (1943: 544) mentioned seven syntypes that were collected between 23 April and 13 June. Two female paralectotypes not included in the preceding material examined are not in coll. ZFMK, but should be the two specimens given to coll. NHMUK in exchange (1961).

Additional material examined.

China – Zhejiang Province • 4 ♂♂, 2 ♀♀; same locality and collector as lectotype; 3 Apr., 4 Apr., 10 Apr., 17 Apr. (2), 18 Apr. 1932; ZFMK • 5 ♂♂, 2 ♀♀; same locality and collector as lectotype; 400 m; mid-April 1936; gen. glycerol no. 6 / B 1 ♂; ZFMK • 1 ♀; Chekiang, Wenchow (= Zhejiang, Wenzhou); 18 Apr. 1939; H. Höne leg.; ZFMK • 3 ♂♂, 1 ♀; same locality and collector as for preceding; June 1939; ZFMK • 1 ♂, 2 ♀♀; same locality and collector as for preceding; July 1939; gen. glycerol no. 6 / B 3 ♀; ZFMK . – Fujian Province • 1 ♂; Fukien, Kuatun (= Fujian, Guadun); 27.40°N, 117.40°E; 2300 m; 3 Apr. 1938; J. Klapperich leg.; ZFMK . – Guangdong Province • 2 ♂♂, 3 ♀♀; Canton or Lienping; ZFMK . – Taiwan Province • 2 ♂♂ (paratypes of Aethalura lushanalis Sato, 1987); Nantou Hsien, Lushan-wenchuan; 13–14 Aug. 1983; R. Sato leg.; ZFMK • 2 ♀♀; Kaohsiung, Liukuei Sanping; 650 m; 24–26 Jul. 1987; R. Sato leg.; ZFMK • 1 ♂; Nantou Co., Hueisun Forest; 600 m; 22 Jun. 1993; F. Aulombard & J. Plante leg.; ZFMK • 1 ♂, 1 ♀; same locality and collectors as for preceding; 570–800 m; 28 / 29 Sep. 1992; ZFMK . – Hainan Province • 1 ♂, 1 ♀; Wuzhishan; 1333 m; 10 Jan. 2008; V. Siniaev leg.; ZSM • 5 ♂♂, 3 ♀♀; Wuzhishan; 756 m; 25 Mar. 2023; Bo Liu leg.; CATASCRI .

Diagnosis.

The diagnostic characters are given under the newly described species.

Distribution.

China (Zhejiang, Fujian, Jiangxi, Guangdong, Hainan, Taiwan), Vietnam, Laos.

Genetic data.

The Barcode Index Number for Calcyopa difoveata is BOLD: AAH 0723 (N = 3, Sample IDs: CRICATAS 00104, BC ZSM Lep 16015, BC ZSM Lep 15995).

Remarks.

This species is now recorded for the first time from Hainan Island, China. Some specimens from Hainan show minor differences in genitalia compared to those from Taiwan and Vietnam, including variation in the thickness of the gnathos in male genitalia as well as the shape of the lamella postvaginalis in female genitalia. At present, we treat these as infrasubspecific variations.