Promalactis termelliptica 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 : 44-45

Promalactis termelliptica Wang , sp. nov.

( Figs. 7 , 16 , 25 )

Type material. CHINA: Hainan Island: Holotype Ƌ, Baisha County (19.08°N, 109.52°E), 430m, 17.IV.2014, coll. Tengteng Liu, Wei Guan and Xuemei Hu, genitalia slide No. HS14130. Paratypes: 1Ƌ, Limushan Forest Park (19.17°N, 109.73°E), 607m, 24.VII.2014, coll. Peixin Cong, Linjie Liu and Sha Hu; 1Ƌ, Wuzhishan Nature Reserves (18.54°N, 109.40°E), 742m, 7.VII.2014, coll. Peixin Cong, Linjie Liu and Sha Hu, genitalia slide No. HS15098; 3Ƌ, Wuzhishan Nature Reserves (18.53°N, 109.39°E), 742m, 19-22.V.2015, coll. Peixin Cong, Wei Guan and Sha Hu; 6♂, 5♀, Wuzhishan Nature Reserves (18.54°N, 109.40°E), 738m, 29.II–3.III.2016, coll. Qingyun Wang, Suran Li and Shengnan Zhao, genitalia slide Nos. HS16029♀, HS16046♀.

Diagnosis. This new species is superficially similar to P. lophacantha Wang, Du et Li, 2013 by having a same forewing pattern, but can be distinguished from the latter in the male genitalia by the valva being elliptical distally, the costa having a larger square process at 1/4 and a small triangular process beyond middle, and the elongate leaflike juxta with a pointed apex; in P. lophacantha he the valva is bilobed distally, the costa has a very long, distally bilobed process arising from base, and the subrectangular juxta is toothed and bluntly rounded at the apex.

Description. Adult ( Fig. 7 ) with forewing expanse 7.5 mm. Head with frons brown, vertex and occupit pale yellow. Labial palpus with second palpomere brown; third palpomere white on basal 2/3, blackish brown on distal 1/3 except white at apex. Antenna with scape yellow; flagellum brown ventrally, white ringed with brown dorsally. Thorax and tegula pale yellowish brown, thorax mottled white scales posteriorly. Forewing pale ochreous yellow, with white markings boarded by black scales: broad fascia at base and basal 1/5, subparallel, third fascia inverted triangular, extending from costal 3/5 to middle of dorsum, inner margin straight, outer margin obliquely inward; apex with a large spot tinged with grayish black scales; cilia yellow, white along distal part of costa before apex, black-tipped along dorsal margin. Hindwing and cilia grayish brown. Fore leg with femur brown, tibia black with white markings dorsally, tarsi white and black; mid leg with femur yellow, tibia blackish brown tinged with white, tarsi yellow except black at apex; hind leg with femur and tibia grayish brown, tarsi with ventral surface grayish brown except black at apex of each tarsomere, dorsal surface blackish brown except white on third tarsomere and at apices of first and fifth tarsomeres.

Male genitalia ( Fig. 16 ). Uncus bell-like, broad at base, slightly narrowed to 3/5; distal 2/5 digitate, rounded at apex. Gnathos tongue-shaped, same length as uncus, granulous on anterior half. Tegumen trapezoidal, anterior 1/3 broadly concave at middle, narrowed to apex laterally. Valva broad at base, narrowed to 2/3, shrunk beyond 2/3, setose and elliptically inflate distally; costa with two processes: one larger square process at basal 1/4, its outer corner produced to a strong apical spine, inner corner slightly produced, another small triangular process beyond middle, bearing long setae; sacculus slightly widened basally, reaching 2/3 length of valva. Saccus broad at base, narrowed to 5/6, distal 1/6 aequilate, less than half width of base, rounded apically, 1.5 times length of uncus. Juxta elongate leaf-like, produced to a spine distally; basal rod reaching anterior 1/3 of saccus. Phallus slender, slightly longer than valva; cornutus spine-like, curved before apex, placed distally.

Female genitalia ( Fig. 25 ). Apophysis anterioris about half length of apophysis posterioris. Lamella postvaginalis large, inverted subtrapezoidal, deeply concave in U shape at middle on posterior margine, setose laterally and posteriorly. Ductus bursae sclerotized in posterior half, tapering to a curved tail, bearing several denticles at about posterior 1/3; membranous in anterior half. Corpus bursae elliptic, with dense granules; with two differently shaped signa: one irregular, consisting of a cluster of spines, placed posteriorly; another subrounded, with a large spine at ether side and several denticles on surface, placed anteriorly.

Distribution. China (Hainan).

Etymology. The name is derived from the Latin terminus (end) and ellipticus (elliptical), referring to the elliptical distal part of the valva in the male genitalia.

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 16 – 19. Male genitalia of Promalactis spp. 16, P. termelliptica sp. nov., holotype, slide No. HS 14130; 17, P. gladiata sp. nov., holotype, slide No. HS 14058; 18, P. lucida sp. nov., holotype, slide No. DZH 12281; 19, P. latitaeniata sp. nov., holotype, slide No. HS 15206. 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.