Promalactis extumida 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 : 413

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.10540077
persistent identifier	https://treatment.plazi.org/id/D957879E-0A3D-D646-A099-D660FD74258E
treatment provided by	Felipe
scientific name	Promalactis extumida Wang, Du & Li
status	sp. nov.

Treatment

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

( Figs 7 View FIGURES 1–8 , 41 View FIGURES 41–46 )

Type material: Holotype ♂, PHILIPPINES, north of Batu Batu , Tarawakan, Tawi Tawi (6°23'N, 118°29'E), 11.xi.1961, leg. Noona Dan Exp. 61−62, genitalia slide No. ZMUC-NK004 ( ZMUC) GoogleMaps . Paratype: 1 ♂, same data as holotype ( ZMUC) GoogleMaps .

Description. Imago ( Fig. 7 View FIGURES 1–8 ) with wingspan 8.0−9.0 mm. Head with vertex shining white, frons yellowish brown, occiput dark brown. Labial palpus with basal and second segments yellow on inner surface, ochreous brown on outer surface; third segment black except white at base and apex, shorter than second. Antenna with scape white; flagellum white and dark brown on dorsal surface, dark brown on ventral surface. Thorax and tegula dark brown, thorax with two white spots at apex, tegula white near costal margin. Forewing dark ochreous brown, markings white margined with black scales: a basal fascia from base of costal margin to dorsal 1/6, second fascia parallel to first one, from costal 1/4 to dorsal 1/2; costal margin with a large rounded patch at 2/3, extending down across midwing; dorsal margin with a streak from 4/5 extending upward to near lower angle of cell; apex with a small white spot; cilia orange basally, dark gray distally. Hindwing and cilia dark gray. Foreleg dark ochreous brown, tibia with white spot at base and middle on dorsal surface, with a tuft of short white scales at apex, tarsus with white spots on dorsal surface; midleg with tibia pale yellow on ventral surface, dark brown on dorsal surface, with a tuft of long white scales at apex, tarsus with white spots on dorsal surface; hindleg yellow, tarsus with white spots on dorsal surface.

Male genitalia ( Fig. 41 View FIGURES 41–46 ). Uncus elongate, slightly broad at base, tapered to bluntly-pointed apex. Gnathos sclerotized, narrow, about 2/3 length of uncus, basal 2/3 almost parallel laterally, distal 1/3 slightly broadened, truncate at apex; lateral arms very short, band shaped, about 1/3 length of gnathos. Tegumen short, branched from posterior 1/4, triangularly narrowed anteriorly. Valva almost same width from base to apex, with dense setae ventro-distally; costa sinuate, concave at base and middle, projected at basal 1/4, with a large triangular projection at distal 1/4; apex rounded. Sacculus narrow, almost same width except slightly narrowed at apex, reaching 3/4 length of valva. Saccus short, triangular, pointed at apex, about 1/2 length of uncus. Juxta with a small triangular process at base, lateral lobes asymmetrical: left one short, about 3/5 length of right one, basal 3/5 triangularly expanded on outside, distal 2/5 very slender, apex pointed, slightly exceeding base of uncus; right one with basal 1/ 3 triangularly expanded on outside, distal 2/3 very slender and curved, apex blunt, far exceeding apex of uncus. Aedeagus straight, slightly longer than valva; cornutus long, about 4/5 length of aedeagus, dendritic, basal 2/3 strong, distal 1/3 very slender and sinuate, with a strong spine-like branch at 1/2, with a very thin spine-like branch near apex.

Female unknown.

Diagnosis. This new species is extremely similar to P. kalimantana Lvovsky, 2000 . It can be separated by the costa with a large triangular projection at distal 1/4, the juxta with lateral lobes triangularly expanded basally and the cornutus with a strong spine-like branch at 1/ 2 in the male genitalia. In P. kalimantana , the costa has a small tooth at apex, the lateral lobes of the juxta expand in band shape basally and the cornutus has a strong spine-like branch at basal 1/ 3 in the male genitalia.

Distribution. Philippines (Tawi Tawi).

Etymology. This specific name is derived from the Latin extumidus (= projecting), referring to the large triangular projection at distal 1/4 of the costa.