Promalactis grandacantha Wang, 2017

Wang, Shuxia & Jia, Yanyan, 2017, Review of the genus Promalactis (Lepidoptera: Oecophoridae) Meyrick, 1908 (II). The suzukiella group, with descriptions of eight new species, Zootaxa 4363 (3), pp. 361-376 : 373

publication ID	https://doi.org/ 10.11646/zootaxa.4363.3.3
publication LSID	lsid:zoobank.org:pub:98CDFB1B-574C-4F06-86C4-265185657949
DOI	https://doi.org/10.5281/zenodo.6016415
persistent identifier	https://treatment.plazi.org/id/03E28788-FFCE-1D27-FF47-EA3DFDB3FA4E
treatment provided by	Plazi
scientific name	Promalactis grandacantha Wang
status	sp. nov.

Treatment

Promalactis grandacantha Wang , sp. nov.

( Figs 9 View FIGURES 2−9 , 22 View FIGURES 16−23 )

Type material. PHILIPPINES: Holotype ♀, Balabac Dalawan Nay, 8.X.1961, Noona Dan Exp. 61-62, KST029, slide No. ZMUC-NK 007 ( ZMUC).

DiagNosis. This new species is characterized by having a large acanthous signum in the female genitalia. It can be distinguished from the five species that only males are known by the forewing with two straight, parallel and uniformly wide white fasciae, and the antemedian fascia much more remote from the basal fascia.

Adult ( Fig. 9 View FIGURES 2−9 ) wingspan 9.0 mm. Head with vertex white, frons grayish black, occiput ochreous yellow. Labial palpus with first and second segments orange yellow, third segment ochreous brown. Antenna grayish brown, darker toward tip. Thorax and tegula ochreous brown. Forewing orange yellow; two uniform parallel white fasciae extending obliquely outward and edged with black scales: basal fascia reaching below costal margin; antemedian fascia extending from basal 3/4 of dorsum to middle of cell; costal spot sub-rounded, extending from costal 4/5 to lower angle of cell. Hindwing and cilia brown. Foreleg blackish brown, mid- and hindlegs yellow.

Female genitalia ( Fig. 22 View FIGURES 16−23 ): Apophyses anteriores approximately half length of apophyses posteriores. Ostium bursae with sclerotized ridge laterally. Ductus bursae sclerotized, uniform. Corpus bursae large, ovate, with granules; signum with basal plate narrowed to each end, medially produced to a large acanthous process.

Male unknown.

DistributioN. Philippines (Balabac).

Etymology. The species epithet is derived from the Latin grandi - and acanthus, in reference to the large acanthous signum of the female genitalia.