Telamoptilia grewiae Liu, Wang & Li, 2015

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 : 251

Telamoptilia grewiae Liu, Wang & Li, 2015 ( Figs 2B , 4B , 5E )

Telamoptilia grewiae Liu, Wang & Li, 2015: 121 . TL: China ( Tianjin). TD: NKU.

Diagnosis. The species resembles T. prosacta (Meyrick, 1918) , but can be separated by the male genitalia with tegumen having 3−4 long setae on each lateral side, the valva same width on basal 3/4; the female genitalia with ductus bursae not reaching anterior margin of the seventh abdominal segment, the signum without a median process. In T. prosacta , the tegumen has 9−12 long setae on each lateral side, the valva is widest at middle; the ductus bursae are two times longer than the seventh abdominal segment, and the signum has a median process.

Description. Adult. Wingspan 5.8−6.3 mm, head smooth, bright white, face slightly brown. Labial palpus white, with end of second segment and middle of outer side of third segment brown, sometimes inner side of these two parts slightly brown. Scape brown, white dorsally; flagellum light brown with metallic luster and white base. Thorax and tegula brown. Legs white, femur and tibia having black dots, tarsus with black rings on distal part of each segment. Forewing brown, with four white stripes on costa 1/6, 1/3, 1/2 and 2/3, respectively, edged with dark scales, median two wider and cross wing, others shorter than half length of wing; apical area with several white spots; cilia around apex black, light brown on dorsum. Hindwing and cilia light brown.

Male genitalia. Tegumen slightly dilated at middle, rounded apically, two rows of long setae along median line, with two setae before apex. Valva longer than tegumen, basal 3/4 equal in width, distal 1/4 gradually narrowed, apex blunt. Saccus somewhat triangular, rounded apically. Phallus straight, about as long as valva, distal part strongly sclerotized, with a pointed process distally, vesica with two patches of micro setae. Eighth tergite with apodeme reaching posterior 1/3 of seventh segment, nearly parallel-sided.

Female genitalia. Apophysis anteriores as long as posteriores. Antrum a ring, disconnected ventrally, embed with a heavily sclerotized belt medially. Ductus bursae membranous, extremely short, not reaching anterior margin of seventh segment, wrinkled basally, without spines. Corpus bursae oval, membranous, without spines; signum slender and long, curved by about 150° medially, posterior half slightly S-shaped, anterior half curved at anterior 2/5, sometimes slightly Cshaped.

Material examined. Shandong: 1♂ 3♀, Yaoxiang National Nature Reserve, Jinan , 36.328°N, 117.122°E, 700 m, 2016.VIII.8, leaf mines collected on Grewia biloba , emerged 2016.VIII.19, 21, 22, leg. Tengteng Liu, genitalia slide nos. LIU0033 ♂, JYR17052 ♀, JYR17047 ♀, registration nos. SDNU.JN160818 , SDNU. JN160820−22 .

Host plant. Grewia biloba G. Don and its variety parviflora Hand. –Mazz. ( Malvaceae ).

Distribution. China (Shandong, Tianjin) ( Liu et al., 2015 for Tianjin).

Figures

Figure 2. Adult habitus. A. Spulerina parthenocissi, male, registration no. SDNU.QD160704. B. Telamoptilia grewiae, male, registration no. SDNU.JN160818. C. Eteoryctis picrasmae, female, registration no. SDNU.YT170704.3. D. Liocrobyla lobata, male, registration no. SDNU.YT170702.6. E. Epicephala relictella, male, registration no. SDNU.Ent150763. F. Conopomorpha flueggella, female, registration no. SDNU.Ent161934. Scale bars=2.0mm.

Figure 4. Male genitalia. A. Spulerina parthenocissi, slide no. LIU16009. B. Telamoptilia grewiae, slide no. LIU0033. C. Eteoryctis picrasmae, slide no. LIU0034. D. Liocrobyla lobata, slide no. LIU0028. E. Epicephala relictella, slide no. JYR17055. F. Conopomorpha flueggella, slide no. LIU0041. Scale bars=0.2mm.

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.