Eumetriochroa hederae Kumata, 1998

Bai, Haiyan, Xu, Jiasheng & Dai, Xiaohua, 2016, Two new and one newly recorded species of Gracillariidae from China (Lepidoptera), ZooKeys 559, pp. 139-150 : 141

Taxon classification Animalia Lepidoptera Gracillariidae

Eumetriochroa hederae Kumata, 1998 Figs 2, 6, 10

Eumetriochroa hederae Kumata, 1998, Insecta Matsumurana. (N.S.) 54: 85.

References.

De Prins and De Prins (2005: 185), Kobayashi et al. (2011: 28).

Adult

(Fig. 2). Wing expanse 8.1~8.7 mm.

Material examined.

China. 1♂, Daqiutian, Jiulian Mountain, Jiangxi Province, 18 January 2013, leg. Xiaohua Dai; 2♀♀, Yangling National Forest Park, Chongyi County, Jiangxi Province, 700 m, 10 March 2012, leg. Jinshui Liang; genitalia slide Nos B12011, B12012, B13057; all in ICCC.

Host plants.

Araliaceae : Hedera sinensis (Tobler) Hand.-Mazz.; Hedera rhombea (Miq.) Bean ( Kumata 1998; Kobayashi et al. 2011).

Distribution.

China (Hunan, Jiangxi), Japan.

Remarks.

Specimens from China do not fully agree with the original description ( Kumata 1998), especially in fore wing markings. Their fore wing has a white stripe situated between the third and fourth fasciae which extends from the dorsal edge of the third fascia towards costa to the middle of the fourth fascia. This character was not recorded by Kumata (1998) in the original description based on Japanese specimens. In addition, instead of the fourth fascia as described by Kumata, it is the apex of the fifth fascia which is edged with remarkable darker spots. However, the structures of the male (Fig. 6) and the female genitalia (Fig. 10) are in accordance with the original description, which provides us confidence to assign the specimens reared in China to this species.