Promalactis latiuscula Wang

Jia, Yanyan, Wang, Shuxia & Bae, Yang-Seop, 2018, The genus Promalactis Meyrick (Lepidoptera: Oecophoridae) in Cambodia, with description of eight new species, Zootaxa 4422 (1), pp. 104-114: 104-105

publication ID

https://doi.org/10.11646/zootaxa.4422.1.6

publication LSID

lsid:zoobank.org:pub:D644BE37-E49E-4313-989F-AF1786D2A04C

persistent identifier

http://treatment.plazi.org/id/CE3D87F2-FF8F-FFB7-FF4B-F8BFFF22A82C

treatment provided by

Plazi

scientific name

Promalactis latiuscula Wang
status

sp. nov.

Promalactis latiuscula Wang  , sp. nov.

( Figs 1 View Figure , 9 View Figure )

Type material. CAMBODIA: Holotype ♂, Samkos (12°12'40.43''N, 102°53'42.38''E), Central Cardamom Mountains , Pursat Province, 647 m, 7.II.2015, coll. Bae Y.S. et al., slide No. INU-NK15147.GoogleMaps 

Diagnosis. This new species is similar to P. thiasitis Meyrick, 1908  and P. javana Lvovsky, 2000  in the forewing having a white pre-tornal stripe extending from before the end of fold to below the costal spot. It can be easily distinguished from P. thiasitis  by the basal and antemedian fasciae reaching the costal margin, whereas they reach vein Sc in the latter species. It can be distinguished from P. javana  in the male genitalia by the valva narrowed from base to basal 3/5, and distal 2/5 produced to a dorso-apical process that is narrowed to a point and a stout clubbed ventro-apical process that is thicker and longer than the dorso-apical process; in P. javana  , the valva is widened to before apex, and its dorso-apical process is slender and almost uniform, and the ventro-apical process is produced sharply to a point.

Description. Adult ( Fig. 1 View Figure ) wingspan 6.5 mm. Head white, occiput yellowish brown. Labial palpus with first and second segments yellow, tinged with black scales at apex of second segment; third segment with basal 1/3 white, distal 2/3 black, tinged with white before apex. Antenna with scape white; flagellum blackish brown, alternated with cream white dorsally. Thorax and tegula yellow. Forewing yellow, mixed with blackish brown and silvery scales distally, with dense gray scales on tornal area; markings white edged with black scales: both basal and antemedian fasciae reaching costal margin, antemedian fascia wider and medially arched outward; costal spot at basal 3/5, sub-rounded, crossing middle of wing ventrally; pre-tornal stripe as long as costal spot; apical spot irregular in shape; pre-apical dot beyond tornus, represented by a few white scales; cilia yellow. Hindwing and cilia light grayish brown. Fore- and midlegs white, with black marks; hindleg gray, white at apices of first and second tarsomeres.

Male genitalia ( Fig. 9 View Figure ). Uncus campanulate, basal 1/3 wide and parallel, median 1/3 gradually narrowed, distal 1/3 uniformly slender, obtuse at apex. Gnathos widely banded, spatulate ventrally, shorter than uncus. Tegumen divided from middle, anteriorly narrowed to rounded apex, heavily sclerotized along edges. Valva broad at base, narrowed to basal 2/3, distal 1/3 furcate, forming two processes: dorsal process gradually narrowed to pointed apex, shorter than ventral process; ventral process stout, clubbed, densely setose distally, rounded apically. Sacculus wide at base, narrowed to end, reaching 1/2 length of ventral margin of valva. Saccus longer than uncus, wide, distal 1/4 distinctly narrowed to apex. Juxta single lobed, relatively wider, nearly as wide as saccus, longer than uncus plus gnathos, medially widened, slightly narrowed to rounded apex distally, not reaching base of uncus apically, with a pre-apical seta; basal lobe slender, reaching before apex of saccus. Aedeagus slightly longer than valva, almost uniform; cornutus slender, hooked, placed distally.

Female unknown.

Distribution. Cambodia (Pursat).

Etymology. The epithetic name is derived from the Latin latiusculus (wider), referring to the relatively wide juxta.