Pterotopteryx spilodesma (Meyrick) Byun, 2006

Byun, Bong-Kyu, 2006, Alucitidae (Lepidoptera) of Korea: Description of a new species and records of two previously unrecorded species, Zootaxa 1188, pp. 37-47 : 43-44

Pterotopteryx spilodesma (Meyrick) comb. nov.

( Figs. 10–13 )

Orneodes spilodesma Meyrick, 1907: 510

Orneodes ochracea Marumo, 1923: 197 .

Orneodes isshikii Matsumura, 1931: 1059 . Alucita spilodesma: Inoue, 1982: 289 (vol. 1), 216(vol. 2), pl. 31: 2; Dubatolov & Ustjuzhanin, 1991: 249 –252; Ustjuzhanin, 1999: 2.

Adult. Head ( Fig. 11 ): Whitish creamy­gray scales. Labial palpus densely scaled, whitish ash­gray; 2nd segment 1.3 times as long as horizontal diameter of compound eye with somewhat dark brownish gray scales medio­ventrally and laterally; 3rd segment narrow, short, ca. 0.7 times as long as horizontal diameter of compound eye, light yellowish gray, slightly darker in dorsal half. Thorax ( Fig. 10 ): Wingspan 14 mm. Forewing whitish ashgray; 1st lobe rather thick, dark brownish gray at base, with six spots along costa; 1 st lobe with 7 small distinct slender spots, width of middle area ca. 0.37 mm; spots I–VI weak along costa; spot III small just after the place of lobe fusion; spot VI a little bit wide; apical spot very slender closed to spot VI; median fascia on 3 rd –6 th lobes located at the level of costal spot IV, more than two times of costal spot IV, rather wide and distinct; subterminal spots on 3 rd –6 th lobes at the level of costal spot VI, rather wider and longer than that of costal spot VI. Hindwing similar to forewing in coloration and pattern, markings rather large and well defined on 4th – 6th lobes.

Male genitalia ( Fig. 12 ): Tegumen long, nearly rounded in dorsal view. Uncus rather long, curved near base, tapering, attenuate apically. Gnathos straight, short, ½ length of uncus, acute terminally. Valva strongly sclerotized, short, broad basally; valvula membranous, strongly concave ventrally, narrowed apically with somewhat triangular termination. Aedeagus slender, long, bearing many small spines near tip; coecum ca. 1/3 length of aedeagus, with several tiny spinules terminally in vesica.

Female genitalia ( Fig. 13 ): Papilla analis narrowed terminally. Corpus bursae triangular in outline, narrowed terminally, membranous, granulated on caudal half; an irregularly shaped signum near middle comprised of more than 30 small spinules. Ductus bursae short, ca. 1/8 length of corpus bursae, covered with numerous spinules around middle to corpus bursae. Ductus seminalis fairly broad basally, narrowed terminally, arising from junction of corpus bursae and ductus bursae.

Material examined: 1♂, Namhae , Prov. Gyeongsangnam­do, 16. VIII. 1994 (B.K. Byun)­genitalia slide number KNIC­47 ; 1♀, Mt. Seungdal, Muan , Prov. Jeonlanam­do, 23. VI. 2003 (S.W.Choi)­genitalia slide number KNIC­718 ; 1♀, Ipseokdong , Seogwipo, Is. Jeju, 30. VI. 1994 (B.K.Byun)­genitalia slide. number KNIC­56 .

Distribution: Korea (new record), Japan, Russia (Far East, Sakhalin Is.), Taiwan, Philippines, India.

Host: Lonicera japonica Thunb. (Caprifoliaceae) ( Inoue, 1982)

Remarks: The species is recorded from June to August in Japan where it is reported to overwinter in the adult stage.

Figures

FIGURES 10–13. Pterotopteryx spilodesma (Meyrick): 10. Adult; 11. head; 12. male genitalia (a. front view of uncus; b. right valva; c. front view of vinculum; d. aedeagus); 13. female genitalia.