Calybites phasianipennella (Hübner, 1813)

Jiang, Yurong, Zhao, Yang, Wang, Encui, Zhang, Tongyou & Liu, Tengteng, 2021, Taxonomic review on Acrocercopinae, Gracillariinae and Ornixolinae from Shandong, China, with new data on distribution and host associations (Lepidoptera: Gracillariidae), Zoological Systematics 46 (3), pp. 240-257 : 241-243

Calybites phasianipennella (Hübner, 1813) ( Figs 1A , 3A , 5A )

Tinea phasianipnnella Hübner, 1810 −13: pl. 47, f. 321. TL: India. TD: BMNH (Lectotype) .

Gracilaria quadruplella Zeller, 1839: 209 . TL: Czech Republic. TD: not stated.

Gracilaria isograpta Meyrick, 1928: 410 .

Euspilapteryx phasianipennella (Hübner) : Miyazaki, 1979: 128.

Calybites phasianipnnella (Hübner) : Kumata, 1982: 121; Kuznetzov & Baryshnikova, 1998: 18 .

Diagnosis. This species resembles C. securinella ( Ermolaev, 1986) on the forewing pattern, but can be distinguished from the latter by the dark brown forewing ground color and the yellow spots, and by the phallus 2.5 times as long as valva in the male genitalia. In C. securinella , the ground color of the forewing is pale brown and the patterns are white, and the phallus is as long as the valva.

Description. Adult. Wingspan 7.0− 9.5 mm. Face and head grayish white. Base of 2nd and 3rd segments of labial palpus and tip of 3rd segment white, sometimes inner side of 2nd segment almost white in a whole. Scape dark gray, flagellum brown with dense white ring. Basal part of fore coxa light yellow, 2nd and 5th segments of fore tarsus white, and sometimes end of 2nd segment slightly brown; basal half of 1st, 3rd and 4th segments of middle tarsus white, 2nd and 5th segments white with tips slightly brown; hind coxa and femur with light yellow scales, hind tarsus white basally, 2nd, 3rd and 4th segments white at large. Forewing dark brown, slightly glossy; four light yellow spots edged black scales on costal 1/3 and 2/3, on base and middle of dorsum; sometimes an indistinct dark brown vertical pattern near apex; cilia brown, with 2 or 3 dark brown lines. Hindwing and cilia gray.

Male genitalia. Tegumen densely covered with fine setae at end. Valva strongly dilated apically, shallowly concave on terminal margin, sacculus straight; a row of setae extending from base of valva to middle of sacculus. Vinculum large, sclerotized, slightly shorter than valva. Saccus thin and short. Phallus thin and straight, about 2.5 times as long as valva, pointed apically, with a row of 7–9 cornuti. Two pairs of coremata present, with posterior pair shorter than anterior (not included in the plate).

Female genitalia. Papillae anales broad and steose. Apophyses posteriores a bit shorter than anteriores. Eighth segment reduced. Ostium bursae membranous. Ductus bursae strongly sclerotized and sinuate twice near corpus bursae. Corpus bursae membranous, with a small pointed signum near opening of bursae.

Material examined. Shandong: 3♂ 1♀, Huimin, Binzhou , 37.725°N, 117.762°E, 10 m, 2016. VIII .05, leaf mines collected on Polygonum persicaria L., leg. Tengteng Liu, genitalia slide nos. JYR17048 ♀, LIU16011 ♂, registration nos. SDNU. BZ160801–160804 ; 3♂ 5♀, 1 ex. without abdomen, Huimin, Binzhou , 37.725°N, 117.762°E, 10m, 2016. VIII .05−06, leg. Tengteng Liu & Jiaxiang Li, genitalia slide no. JYR17050, registration nos. SDNU.BZ160088, 160013 , 160016 , 160051 , 160083 , 160101 , 160122 , 160196 , 160200 ; 1♂, Mt. Kunyu, Yantai , 37.292°N, 121.740°E, 400 m, 2017. VII .17, leaf mines collected on Polygonum sp. , leg. Tengteng Liu & Zhenquan Gao, genitalia slide no. LIU0031, registration no. SDNU.YT170707 ; 1♂, Mt. Laoshan, Qingdao , 36.211°N, 120.593°E, 390 m, 2017.VI.29−VII.07, leg. Tengteng Liu, Zhenquan Gao & Nan Wang, registration no. SDNU . Ent 170308 .

Host plant. Persicaria maculosa Gray and Polygonum sp. (Polygonaceae) in China. Polygonaceae is the most preferable host family, other host families include Amaranthaceae , Boraginaceae , Clusiaceae , Lythraceae , Poaceae , Polygonaceae , and Primulaceae (de Prins & de Prins, 2020) .

Distribution. China (Anhui, Beijing, Fujian, Gansu, Guangdong, Guizhou, Heilongjiang, Henan, Hubei, Hunan, Inner Mongolia, Jilin, Ningxia, Qinghai, Shaanxi, Shanxi, Shandong, Sichuan, Tianjin, Xinjiang, Xizang, Yunnan, Zhejiang, Taiwan). This species is widespread in the Palearctic and Oriental Regions (de Prins & de Prins, 2020).

Figures

Figure 1. Adult habitus. A. Calybites phasianipennella, male, registration no. SDNU.YT170707. B. Calybites securinella, male, registration no. SDNU.Ent150632. C. Caloptilia (Caloptilia) celtidis, male, registration no. SDNU.Ent170235. D. Caloptilia (C.) chrysolampra, male, registration no. SDNU.BZ160807. E. Caloptilia (C.) sapporella, male, SDNU.Ent170088. F. Acrocercops transecta, male, registration no. SDNU.LS150701. Scale bars=2.0mm.

Figure 3. Male genitalia.A. Calybites phasianipennella, slide no. LIU0031. B. Calybites securinella, slide no. LIU0036. C. Caloptilia (Caloptilia) celtidis, slide no. LIU0037. D. Caloptilia (C.) chrysolampra, slide no. LIU0035. E. Caloptilia (C.) sapporella, slide no. LIU0038. F. Acrocercops transecta, slide no. LIU15001. Scale bars=0.2 mm.

Figure 5. Female genitalia. A. Calybites phasianipennella, slide no. JYR17048. B. Caloptilia (Caloptilia) chrysolampra, slide no. JYR17054. C. Acrocercops transecta, slide no. LIU0027. D. Spulerina parthenocissi, slide no. LIU16010. E. Telamoptilia grewiae, slide no. JYR17052. F. Eteoryctis picrasmae, slide no. JYR17053. G. Epicephala relictella, slide no. JYR17046. H. Conopomorpha flueggella, slide no. LIU0041. Scale bars=0.5mm.