Diplopseustis brunnealis (Hampson,1917), 2025

Müller, Anne, Hayden, James, Lees, David C. & Léger, Théo, 2025, Assessment of species diversity of the Lathrotelinae (Lepidoptera: Crambidae) from the Philippines using morphology and DNA barcoding reveals eight new species, Journal of Asia-Pacific Biodiversity CLXVI (CLXVI), pp. 1-24 : 10-15

publication ID	https://doi.org/10.1016/j.japb.2025.01.012
DOI	https://doi.org/10.5281/zenodo.15396136
persistent identifier	https://treatment.plazi.org/id/03817A53-5842-FFEB-FCDD-0011FF73F9FE
treatment provided by	Jonas
scientific name	Diplopseustis brunnealis (Hampson,1917)
status	comb. nov.

Treatment

Diplopseustis brunnealis (Hampson,1917) , comb. nov. ( Figures 3 View Figures 3-8 , 19 View Figures 19-26 , 32 View Figures 32-37 , 42 View Figures 42-45 )

Sufetula brunnealis Hampson, 1917: 373

Type locality. Philippines, Manila

Material examined. Holotype. ♀ (specimen identifier: NHMUK013699637 ): “Type H.T.” [red circled label] | “ Philippines near Manila. E.W. Ledyard 1912 - 97” | “ Sufetula brunnealis type ♀ Hampsn”; 3 ♂ (specimen identifiers coll.mfn-berlin.de_u_2a6f6a , 2a6f68 , 2a6f69 ), 1 ♀ (specimen identifier coll.mfn-berlin.- de_u_2a6f6b ). Detailed information in Table S1 .

Similar species. Diplopseustis selenalis Hampson, 1906

Diagnosis. Diplopseustis brunnealis comb. nov. ( Figure 3 View Figures 3-8 ) displays several characters that are characteristic of Diplopseustis : 4 - 5 smaller costal spots are inserted interstitially between the three primary costal spots; the ante- and postmedian lines are thin, cream to white; the postmedian line is abruptly shifted inwards at 2/3 length, then running almost straight to the dorsum; and the hindwing has a thin, white, jagged postmedian line. In the male genitalia ( Figure 32 View Figures 32-37 ), the uncus is very thin and long, with the apex split in two. The valva is twice as long as wide. In the female genitalia ( Figure 42 View Figures 42-45 ), D. brunnealis comb. nov. can be separated from the similar looking species D. perieresalis (type locality: Malaysia, Sarawak) and D. selenalis (type locality: New Guinea, Fergusson Island) by the shape of the antrum and of the corpus bursae: the antrum forms two semi-rounded sclerites and the corpus bursae is oblong in D. brunnealis comb. nov., while it forms a sclerotised ring in D. selenalis and in D. perieresalis , and the corpus bursae is globular in D. perieresalis ( Speidel et al. 2007) .

Redescription. Wings ( Figure 3 View Figures 3-8 ). Forewing length: 6.5 - 7mm; background colour dark brown. Antemedian line jagged, cream-coloured, distally edged with dark brown. Discoidal spot oblong, cream, basally edged with dark brown. Costa with three distinctive subtriangular cream spots, in-between chequered with dark brown and cream. Postmedian line thin, cream-coloured, slightly arched outwards on first half, then disrupted inwards on 3/4, last 1/4 running vertically toward dorsum. Tympanal organs ( Figure 19 View Figures 19-26 ). ♂ ♀. Bullae tympani 1/4 to 1/3 recessed laterad of venula prima, not extended posterior of ramus tympani. Tympanic pockets small, more or less marked. Venulae secundae long, straight. Male genitalia ( Figure 32 View Figures 32-37 ). Uncus roughly as long as tegumen arms, conspicuously narrow, apex split in two tips. Valva twice as long as wide, oval shaped, ventral edge conspicuously convex, dorsal edge straight, apex rounded. Juxta with V-shaped basal margin, deeply split in middle. Manica with two combs of dense sclerotised setae. Phallus short, bulky; cornuti absent. Female genitalia ( Figure 42 View Figures 42-45 ). Posterior apophyses ca 2.3 × tergite VIII length. Anterior apophyses ca 1.9 × tergite VIII length. Antrum with two semi-rounded sclerites surrounding opening. Ductus bursae roughly straight, in distal half covered with minute spicules. Corpus bursae ca 1.5 × ductus length, oblong-shaped, kinked near opening, membranous, devoid of signa.

Distribution. Known from Luzon (Manilla, Mt Makiling), Negros (Patag) at elevations between 200 m and 750 m ( Figure 55 View Figure 55 ).

DNA barcoding. The specimen PYRALPHIL09-F11 from Negros shows a p-distance of 2.0% with the specimen MFNLEP937 (Negros, same locality) and the specimen MFNLEP949 from Luzon (Laguna, Mt Makiling).