Promalactis spiniflagellata Wang, 2019

Wang, Shuxia & Jia, Yanyan, 2019, Taxonomic study of the genus Promalactis Meyrick, 1908 (Lepidoptera: Oecophoridae) IV. The sakaiella species group, with descriptions of fifteen new species, Zootaxa 4563 (3), pp. 491-515 : 502

Promalactis spiniflagellata Wang , sp. nov.

( Figs 11 , 26 )

Type material. CHINA , Guangxi Zhuangzu Autonomous Region: Holotype ♂, Shaoping Linchang (22.09°N, 106.94°E), Pingxiang , 280 m, 28.III.2012, coll. Xiaofei Yang, slide No. JYY17526. Paratypes (4♂): 3♂, 25.III.2012, other same data as holotype, slide No. JYY17527 ♂; 1♂, 1.IV.2013, other same data as holotype .

Diagnosis. This new species is characterized by having a torch-shaped juxta with a S-shaped lateral process. It is closer to P. bicornea sp. nov., and differences between them are stated in the preceding species.

Description. Adult ( Fig. 11 ) wingspan 7.5–8.0 mm. Head creamy white, mixed with greyish brown scales on frons and occiput. Labial palpus white; second segment black on outer side except white at apex; third segment black at base and before apex. Antenna with scape white on ventral surface, blackish brown on dorsal surface; flagellum black on ventral surface, yellowish white and black on dorsal surface. Thorax and tegula blackish brown. Forewing ground color golden yellow, with blackish brown scales basally; costal margin with a wide black streak extending from base to antemedian fascia; with two wide blackish brown fasciae mottled white scales: antemedian fascia narrower, from beyond basal 1/3 of costal margin straight to dorsum, its outer margin edged with sparse white scales; postemedian fascia broad, from distal 1/3 of costal margin straight to end of fold, widened anteriorly; distal patch blackish brown, enlarged at apex, slightly narrowed along termen to meet postemedian fascia; cilia golden yellow mixed with blackish brown. Hindwing and cilia yellowish grey. Fore- and midlegs black ventrally except whitish yellow at apices of tibiae and each tarsomere, yellowish white dorsally; hindleg greyish yellow except blackish brown at apices of tibia and each tarsomere.

Male genitalia ( Fig. 26 ). Uncus large, wide at base, slightly narrowed to a rounded apex, with a small cut at middle of apex. Gnathos digitate, heavily sclerotized, less than half length of uncus; lateral arms wider, weakly sclerotized. Tegumen divided from posterior 2/5, anterior 3/5 elongate triangular, rounded apically, sclerotized along edges. Valva with basal 2/3 sub-rectangular, distal 1/3 narrowed and produced to a large spine directing dorsad; costa produced beyond middle, concave distally, with a slender process at distal 1/4. Saccus broad triangular, almost as long as uncus, narrowed to apex. Juxta torchlike; lateral process arising from distal 1/3, spinous, flagellate, curved in S shape, extending to before apex of valva; basal lobe reaching posterior 2/5 of saccus. Aedeagus slender, narrowly rounded at apex, shorter than valva; cornutus absent.

Female unknown.

Distribution. China (Guangxi).

Etymology. This epithet is derived from the Latin spin- and flagellatus, referring to the lateral process of the juxta.

Figures

FIGURES 11–16. Adults of Promalactis spp. 11. P. spiniflagellata sp. nov., holotype, ♂; 12. P. grandilobata sp. nov., holotype, ♂; 13. P. arciformis sp. nov., holotype, ♂; 14. P. bornensis sp. nov., holotype, ♂; 15. P. oliviformis sp. nov., holotype, ♂; 16. Head of P. apicidigitata sp. nov. Scales: 9–15 =1.0 mm, 16 =0.5 mm.

FIGURES 21–26. Male genitalia of Promalactis spp. 21. P. auremacularis sp. nov., holotype, slide No. MNHU-NK036; 22. P. biprocessa sp. nov., paratype, slide No. JYY17670; 23. P. curvitaeniata sp. nov., holotype, slide No. DZH11058; 24. P. lvovskyi sp. nov., holotype, slide No. TLMF-NK001; 25. P. bicornea sp. nov., holotype, slide No. JYY17533; 26. P. spiniflagellata sp. nov., holotype, slide No. JYY17526. Scales =0.2 mm (not available for No. 21).