Promalactis falciprocessa 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 : 35-36

Promalactis falciprocessa Wang , sp. nov.

( Figs. 1 , 11 , 20 )

Type material. CHINA, Hainan Island: Holotype Ƌ, Jianfengling Nature Reserves (18.44°N, 108.52°E), 770m, 30.V.2015, coll. Peixin Cong, Wei Guan and Sha Hu, genitalia slide No. HS15136. Paratypes: 1Ƌ, 13♀, 29.V- 5.VI.2015, other data same as for holotype, genitalia slide Nos. HS15140♀, HS15141♀, HS15147♀; 1Ƌ, 7♀, Limushan Forest Park (19.17°N, 109.73°E), 607m, 24-25.VII.2014, coll. Peixin Cong, Linjie Liu and Sha Hu, genitalia slide Nos. HS14072♀, HS14112♀, HS14113Ƌ, HS15013♀, HS15014♀; 1♀, Limushan Nature Reserves (19.10°N, 109.44°E), 632 m, 3.VII.2015, coll. Qingyun Wang, Suran Li and Mengting Chen, genitalia slide No. HS15183♀.

Diagnosis. This new species is similar in appearance to P. lunularis Du, Li et Wang, 2011 , P. rostriformis Du, Li et Wang, 2011 and P. saligna Du et Wang, 2012 by the forewing sharing one fascia and one costal spot. Promalactis falciprocessa sp. nov. differs from the other three species in the male genitalia by the costa having a large falcate distal process that projects beyond the apex of the sacculus; whereas in P. l u nu l a r i s, P. rostriformis and P. saligna , the figure-shaped or spiniform costal process does not project beyond the apex of the sacculus.

Description. Adult ( Fig. 1 ) with forewing expanse 9.0 mm. Head with frons shining gray, vertex shining white, occiput ferruginous. Labial palpus with second palpomere ochreous brown except black at apex; third palpomere white on basal 2/5, blackish brown on distal 3/5. Antenna with scape white; flagellum with ventral surface brown, dorsal surface white tinged with black on basal half, white ringed with black on distal half. Thorax and tegula ferruginous. Forewing deep ochreous brown, with grayish brown scales at apex; white fascia from costal 1/4 obliquely outward to dorsal 1/3, edged with black scales laterally; costa with a square white spot beyond 2/3, edged with black scales except along costa, extending across midwing posteriorly; cilia white basally and yellow distally around apex, tinged with black-tipped scales, brown mixed with black ventrally. Hindwing and cilia brown. Fore leg grayish brown with white markings dorsally; mid leg with femur yellow, tibia grayish brown ventrally, blackish brown dorsally, with a tuft of long white scales at apex, tarsi blackish brown with white strips dorsally; hind leg pale yellow ventrally, grayish brown tinged with black dorsally.

Male genitalia ( Fig. 11 ). Uncus with basal half broad, subrectangular, narrowed sharply at middle, distal half digitate. Gnathos small, triangular, shorter than lateral arms. Valva subparallel; costa about 1/4 length of sacculus, produced to a large free sickle-shaped distal process, extended beyond apex of sacculus, setose; sacculus narrow, nearly aequilate, distal 1/4 free, produced to a free process with apex slightly hooked; apex of valva deeply concave inward between costal and saccular processes. Saccus about two times length of uncus, subparallel from base to about 3/4, then slightly narrowed to rounded apex. Juxta with lateral lobes long and slender, uniform except narrowed from distal 1/6 to pointed apex, reaching beyond base of gnathos; basal rod slightly tapering distally, reaching anterior 2/5 of saccus. Phallus about 1.8 times of sacculus, straight and slender, with a long straight apical spine; cornutus spine-like, about 1/9 length of phallus, placed distally.

Female genitalia ( Fig. 20 ). Papillae anales rectangular, setose. Apophysis anterioris about half length of apophysis posterioris. Lamella postvaginalis deeply concave in U shape at middle on posterior margin, spinous along margin of concavity. Antrum broad funneled. Ductus bursae weakly sclerotized except membranous medially; distal 1/3 suddenly dilated, sclerotized, with stout spines. Corpus bursae round; two large elongate ovate signa placed medially, with two or more fine teeth posteriorly.

Distribution. China (Hainan).

Etymology. The species epithet is derived from the Latin falc- (sickle) and processus (process), referring to the falcate process of the costa of the 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.