Promalactis lancea Wang, Du & Li, 2013

Wang, Shuxia, Du, Zhaohui & Li, Houhun, 2013, Taxonomic study of the genus Promalactis Meyrick, 1908 from Southeast Asia (Lepidoptera: Oecophoridae), Zootaxa 3669 (4), pp. 401-455 : 418-419

publication ID	https://doi.org/ 10.11646/zootaxa.3669.4.1
publication LSID	lsid:zoobank.org:pub:35D1C69A-0E41-430A-8483-BEB84F45D8D4
DOI	https://doi.org/10.5281/zenodo.10540087
persistent identifier	https://treatment.plazi.org/id/D957879E-0A20-D658-A099-D403FD73200C
treatment provided by	Felipe
scientific name	Promalactis lancea Wang, Du & Li
status	sp. nov.

Treatment

Promalactis lancea Wang, Du & Li , sp. nov.

( Figs 12 View FIGURES 9–16 , 46 View FIGURES 41–46 , 68 View FIGURES 66–69 )

Type material: Holotype ♂, THAILAND, Doi Suthep (18°49'N, 98°57'E), summit, Chieng Mai Province, 1600 m, light catch, 30.ix.1981, leg. Zool. Museum Copenhagen, genitalia slide No. ZMUC-NK011 ( ZMUC) GoogleMaps . Paratype: 1 ♀, same data as holotype, genitalia slide No. ZMUC-NK012 ( ZMUC) GoogleMaps .

Description. Imago ( Fig. 12 View FIGURES 9–16 ) with wingspan 11.0−11.5 mm. Head shining dark brown, with some white scales laterally, occiput mixed with yellowish scales in some specimens. Labial palpus with basal and second segments ochreous yellow, third segment dark ochreous brown, almost same length as second. Antenna with scape grayish white on dorsal surface, dark brown on ventral surface; flagellum grayish and dark brown on dorsal surface, dark brown on ventral surface. Thorax dark brown, tegula dark ochreous brown. Forewing ochreous brown; markings white edged with black scales: costal margin with a triangular patch before 2/3, extending down to midwing, with dense black scales antero-laterally; three white streaks arising from dorsal margin: first one from basal 1/5 to base of fold, second one from 2/5 to basal 1/3 of upper margin of cell, arched, anterior 2/3 broader, third one from 2/3 extending outward to distal 1/5 of lower margin of cell; tornus with a small triangular white spot, an irregular darkgray spot above it reaching lower angle of cell, a dark-gray streak along distal 1/5 of lower margin connected with the dark-gray spot; apex with a large wedge-like white spot along termen, sometimes mixed with black scales; cilia yellowish brown, gray along distal part of dorsum. Hindwing and cilia dark gray. Foreleg black, tibia with white spot at base, middle and apex on dorsal surface, tarsus with white spots on dorsal surface; midleg with tibia and tarsus yellow on ventral surface, black on dorsal surface, tibia with white spot at base and middle on dorsal surface, with a tuft of long white scales at apex, tarsus with white spots on dorsal surface; hindleg yellow on ventral surface, gray on dorsal surface, tarsus with white spots on dorsal surface.

Male genitalia ( Fig. 46 View FIGURES 41–46 ). Uncus heavily sclerotized, triangular, broad at base, narrowed to narrowly rounded apex, converging in middle distally and forming a longitudinal ridge. Gnathos almost same length as uncus, heavily sclerotized, very broad at base, narrowed to middle, basal half irregularly expanded inward laterally, distal half banana shaped, rounded at apex. Tegumen branched from middle, narrowly rounded anteriorly. Valva short, nearly parallel dorso-ventrally; costa short and straight, about 1/3 length of sacculus; apex almost straight medially, with two processes: dorso-apical process strong, elongate, directing upward, slightly exceeding apex of uncus, its basal 3/5 almost same width, then narrowed to pointed apex, curved inward medially, distal half with a cluster of dense fine spines; ventro-apical process strong, triangular and setose basally, with an ovate fold at middle, thin columniform and curved inward in broad U shape distally, narrowly rounded and directing upward apically; a sclerotized, band-shaped sinuate process extending from base below costa to base of ventro-apical process. Sacculus broad at base, slightly narrowed to apex. Saccus broad, longer than uncus, its basal 3/5 almost parallel laterally, distal 2/5 narrowed to rounded apex. Juxta narrowly lamellar, elongate, very narrow at base, with a slender, arched basal process; medially with a short narrow band extending to distal 1/3; a broad membranous loop around middle of juxta, open posteriorly, bearing a tuft of hairs postero-laterally; apically obliquely rounded, reaching posterior 1/5 of tegumen. Aedeagus curved at basal 1/3, slightly shorter than total length from apex of saccus to posterior margin of tegumen, with an elongately lanciform apical process margined with blunt teeth; cornutus absent.

Female genitalia ( Fig. 68 View FIGURES 66–69 ). Apophysis anterioris about 1/2 length of apophysis posterioris, apophysis posterioris expanded distally. Ostium bursae opened at basal 1/3 of lamella postvaginalis. Lamella postvaginalis large and elongate, about 2/5 length of ductus bursae, heavily sclerotized, curved in U shape, basal 2/5 tubular, distal 3/5 trough-like, distal 1/5 serrate laterally. Ductus bursae long, about 2.2 x length of corpus bursae, posterior 1/2 with a sclerotized band, curved at posterior 1/5, anterior 1/2−1/5 weakly sclerotized on dorsal surface, anterior 1/5 expanded, membranous, with a volute, sclerotized thin band; ductus seminalis arising from anterior 1/5 of ductus bursae. Corpus bursae somewhat pear-like, with dense granules; signum a sclerotized elliptic plate, with two spines on left end.

Diagnosis. This new species is similar to above new species P. fortijuxtalis sp. nov. It can be separated by the triangular uncus, the valva with dorso-apical process elongate, ventro-apical process curved in broad U shape distally and the narrowly lamellar juxta in the male genitalia.

Distribution. Thailand (Chieng Mai).

Etymology. The specific name is derived from the Latin lanceus (= lanciform), referring to the shape of apical process of the aedeagus in the male genitalia.