Promalactis longivalvaris Wang

Hu, Sha & Wang, Shuxia, 2016, Taxonomic study of the genus Promalactis Meyrick (Lepidoptera, Oecophoridae) from Hainan Island, China (II), Zootaxa 4136 (3), pp. 35-48 : 41-42

Promalactis longivalvaris Wang , sp. nov.

( Figs. 3 , 13 , 21 )

Type material. CHINA: Hainan Island: Holotype Ƌ, Jianfengling Nature Reserves (18.744°N, 108.843°E), 1050m, 27.IV.2014, coll. Tengteng Liu, Wei Guan and Xuemei Hu, genitalia slide No. HS14025. Paratypes: 17Ƌ, 5♀, same data as holotype, genitalia slide Nos. HS14026♀, HS14159♀.

Diagnosis. This new species is superficially similar to P. sectoralis Wang, Du et Li, 2013 and P. pugnivalvata sp. nov. by having a same forewing pattern. Promalactis longivalvaris sp. nov. can be distinguished from them by the the valva having a mastoid apical process, and the cornutus with medial apical spine shorter than the lateral spines. In P. sectoralis , the rounded valva lacks an apical process, and the cornutus is spine-like. In P. pugnivalvata sp. nov., the valva is produced to two lobes apically, and the cornutus has the medial apical spine longer than the lateral spines and sharply curved medially.

Description. Adult ( Fig. 3 ) with forewing expanse 8.5 mm. Head with frons and vertex shining white, occiput ochreous brown. Labial palpus with second palpomere ochreous yellow on inner surface, brown on outer surface; third palpomere white at base and apex, brown at middle, as long as second palpomere. Antenna with scape white except black at apex; flagellum blackish brown on ventral surface, white and black on dorsal surface. Thorax and tegula ochreous brown, thorax with two white spots posteriorly. Forewing ferruginous, with markings white bordered by black scales: basal fascia slender; second fascia at basal 1/4, wider, oblique outward, parallel with basal fascia; costa with an elliptic spot beyond 2/3, extending to midwing; fine streak from middle of dorsum oblique outward to below costal spot; apex with a subtriangular spot; cilia brown except ochreous yellow mixed with white around apex. Hindwing and cilia grayish brown. Fore leg brown, with white markings on dorsal surface; mid leg with femur and tibia grayish brown, tibia with a cluster of long white scales at apex, tarsi blackish brown, with white markings dorsally; hind leg grayish brown, tarsi white except basal part of basal tarsomere and entire third tarsomere blackish brown.

Male genitalia ( Fig. 13 ). Uncus broad at base, narrowed to 2/3; distal 1/3 bent ventrad, depressed medially, sclerotized laterally, with a tiny medial tooth apically. Gnathos membranous, quadrate, weakly sclerotized, anterolaterally produced to a sclerotized spine. Tegumen branched from posterior 2/5, anterior 3/5 narrowed to pointed apex. Valva narrow at base, slightly widened to before apex; dorsal margin arched distally, with a narrow ridge before apex reaching anterior 2/5, ventral margin with distal 1/4 setose; apex rounded, with mastoid process; sacculus narrow, reaching 3/5 length of ventral margin of valva. Saccus broad, basal half subparallel, narrowed from middle to rounded apex, about same length as uncus. Juxta broad basally, narrowed to about 3/4; distal 1/4 furcate, lateral lobes narrowed to pointed apex; basal rod thin figure-like, anteriorly reaching middle of saccus. Phallus about same length as valva, slightly dilated basally; cornutus slender, distally inflated, produced to three curved apical spines ( Fig. 13 a), lateral spines same length, medial spine 1/3 length of lateral spines.

Female genitalia ( Fig. 21 ). Apophysis anterioris about 2/3 length of apophysis posterioris. Ostium bursae elongate ovate. Lamella postvaginalis small, subtrapezoidal. Antrum subrounded. Ductus bursae with basal 1/6 sclerotized, with curved fine carinae; membranous from 1/6 to middle, with about 21 small spines of different length; distal half sclerotized, crumpled, with longitudinal carinae, recurved at approximately distal 1/4 by 180 degrees toward the anterior end. Corpus bursae elliptic, membranous; signum absent.

Distribution. China (Hainan).

Etymology. The specific epithet is derived from the Latin longi - (long) and valvaris (valva), referring to the elongate valva.

Figures

FIGURES 1 – 10. Adults of Promalactis spp. 1, P. falciprocessa sp. nov., paratype, female; 2, P. bilobulata sp. nov., paratype, male; 3, P. longivalvaris sp. nov., paratype, male; 4, P. pugnivalvata sp. nov., paratype, male; 5, P. clavata Du, Li et Wang, male; 6, P. caperatiella Kim et Park, male; 7, P. termelliptica sp. nov., paratype, male; 8, P. gladiata sp. nov., paratype, male; 9, P. lucida sp. nov., paratype, male; 10, P. latitaeniata sp. nov., paratype, female. Scales = 1 mm.

FIGURES 11 – 15. Male genitalia of Promalactis spp. 11, P. falciprocessa sp. nov., paratype, slide No. HS 14113; 12, P. bilobulata sp. nov., paratype, slide No. DZH 12316; 13, P. longivalvaris sp. nov., holotype, slide No. HS 14025, a, enlarged apex of phallus; 14, P. pugnivalvata sp. nov., paratype, slide No. HS 15181, a, enlarged apex of phallus; 15, P. caperatiella Kim et Park, slide No. HS 16012, a-b, enlarged apex of phallus. Scales = 0.2 mm.

FIGURES 20 – 27. Female genitalia of Promalactis spp. 20, P. falciprocessa sp. nov., paratype, slide No. HS 15013; 21, P. longivalvaris sp. nov., paratype, slide No. HS 14159; 22, P. pugnivalvata sp. nov., paratype, slide No. HS 15153; 23, P. clavata Du, Li et Wang, slide No. HS 14143; 24, P. caperatiella Kim et Park, slide No. HS 16013; 25, P. termelliptica sp. nov., paratype, slide No. HS 16046; 26, P. lucida sp. nov., paratype, slide No. HS 14138; 27, P. latitaeniata sp. nov., paratype, slide No. HS 15216. Scales = 0.5 mm.