Microchilo cebuano Léger, 2024

Microchilo cebuano Léger , sp. n.

https://zoobank.org/ 7E79EB3B-2339-48A2-9D74-F0D533B48848

Figs. 55 View Figs 48-55 , 176 View Figs 176-178 .

MATERIAL

Holotype: ♀ (specimen identifier coll.mfn-berlin.de_u_7773b7, DNA voucher MFNLEP-PYRALPHIL01-H05 , dissection on slide TL918♀; BOLD sample ID PYPHI401-23). PHILIPPINES: Mindanao, Mount Agtuuganon , 1050 m, 28.05-07.06.1996 (W. Mey) .

Paratypes: 3 ♀ (specimen identifiers coll.mfn-berlin.de_u_88af49, b1bcea, c18ec0) (detailed information in Table S1; https://doi.org/10.5061/dryad.b8gtht7mh) .

DIAGNOSIS

The larger forewing (length = 7.5 mm) as well as the median discoidal Y-shaped stigma ( Fig. 55 View Figs 48-55 ) separate this species from the three other Microchilo species of the Philippines. In female genitalia ( Fig. 176 View Figs 176-178 ), the tubular sclerotized colliculum, the minute spicules on basal half of corpus bursae, and the lightly sclerotized rounded signum separates this species from the other Philippine species. Male genitalia unknown.

HABITUS (FIG. 55)

Forewing length 7.5 mm (n = 1); ground color greyish brown. Antemedian line thin, white, running inwardly towards dorsum. Median area marked with dark brown and tawny brown scales. Median marked Y-shaped discoidal patch. Postmedian line thin, white, running outwards down to M1 vein, then bent inwards towards dorsum. Subterminal area suffused with white scales. Margin with seven well-marked dark brown spots. Fringes chequered grey and cream. Hindwing greyish brown.

MALE GENITALIA

Unknown.

FEMALE GENITALIA ( FIG. 176 View Figs 176-178 )

Papillae anales small, triangular in lateral view. Posterior apophyses ca 7/3 X length of tergite VIII. Anterior apophyses ca 2 X length of tergite VIII. Intersegmental membrane ca 1.5 X length of tergite VIII. Colliculum ca half of ductus bursae length, conical, lightly sclerotized, wrinkled. Ductus bursae short, straight, wrinkled. Corpus bursae ca 3 X ductus length, pear-shaped, basal half covered with small spines, distal half scobinate, with one large lightly sclerotized signum.

DISTRIBUTION

PHILIPPINES: Negros, Mindanao. Collected at altitudes between 1050 and 1450 m.

DNA BARCODING

The specimen from Negros and Mindanao were recovered in two different MOTUs in the species delimitation analysis, separated by a p-distance of 4.5%.

ETYMOLOGY

Refers to the Cebuano language spoken on Negros and Mindanao where the species is encountered.