Promalactis senispina Kim

Kim, Sora, Bae, Yang-Seop & Lee, Seunghwan, 2019, Four new species and seven new records of Promalactis Meyrick, 1908 (Lepidoptera, Oecophoridae) from Laos, ZooKeys 900, pp. 69-86 : 75-76

Promalactis senispina Kim sp. nov. Figures 2F , 4 F–I

Type material.

Holotype: ♂, Laos, Bolikhamsai prov., Phou Khao Khouay National Protected Area National Park, 322 m, 1 April 2016, Bae et al., gen. slide no. 9860/S. Kim. [Holotype is deposited in INU.]

Diagnosis.

This species is externally similar to P. lophacantha Wang, Du & Li by having irregular bands of forewing, but it can be easily differentiated by the extended saccus and the prolonged aedeagus, which bears six projections in male genitalia.

Description.

Adult ( Fig. 2F ). Head: frons pale yellowish white; vertex white; occiput white. Antenna: scape white entirely, longer than diameter of eye; flagellum dark brown and white alternately from base to apex dorsally. Labial palpus: 2nd palpomere pale yellowish brown, slightly longer than 3rd palpomere; 3rd palpomere pale yellow tinged with white, except dark brown apically. Thorax: thorax and tegula dark brown. Wingspan 7.0-7.5 mm. Forewing ground color yellowish brown; three bands, one costal patch, and one apical patch all white: one subbasal band traversed from costal margin to posterior margin near wing base; one antemedial band broad, slightly oblique toward wing base, traversed from costa to posterior margin; one medial band connected to postmedial short band on lower margin of cell; one apical patch accupied after 3/4 of forewing to apex; fuscous scales scattered followed by posterior margin of forewing; fringes yellow, except pale yellowish white near medial and postmedial bands. Hindwing ground color grayish dark brown; fringes dark grayish brown.

Male genitalia ( Fig. 4 F–I ). Uncus wide at base, gradually narrowed to pointed apex, setose apically, as long as gnathos. Gnathos wide at base, gradually narrowed to apex, thumb-shaped apex, bearing sclerotized and serrated projection inner margin, as long as uncus. Valva symmetrical; costal margin convex after middle; saccular margin moderate, setose from 1/2 of its length to apex. Saccus extremely long, 1.5 times longer than valva. Aedeagus straight, elongated, as long as total length of genitalia, with six spines, differently sized apically; cornutus absent.

Female unknown.

Distribution.

Laos (central; new).

Etymology.

The specific name is derived from the Latin, seni (= six) and - spina (= spine), referring from the aedeagus bearing six spines in males.

Figures

Figure 2. Wing pattern of Laos Promalactis A Promalactis parasuzukiella B P. suzukiella C P. uniclavata sp. nov. D P. albisquama E P. spiraliola F P. senispina sp. nov. G P. apicisetifera H P. zolotuhini I P. bitrigona J P. crassa sp. nov. K P. retusa sp. nov.

Figure 4. Genitalia of Laos Promalactis A-E P. spiraliola: A male genitalia B aedeagus C uncus and gnathos D apical part of valva E bifurcate part of cornutus F-I P. senispina sp. nov.: F male genitalia G aedeagus H sclerotized projection of gnathos I apical projections of aedeagus J-M P. apicisetifera: J male genitalia K aedeagus L uncus and gnathos M juxta. Scale bars: 0.5 mm.