Microchilo bundoki Leger 2024, sp. n.
Creators: name: Léger, Théo
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Crambidae
Microchilo
Microchilo bundoki

description: Microchilo bundoki Léger, sp. n.
https://zoobank.org/ 936E5278-10E2-4051-B894-85BE14F1D64D
Figs. 54, 118, 175.
MATERIAL
Holotype: ♂ (specimen identifier coll.mfn-berlin.de_u_2cfadf, DNA voucher MFNLEP-PYRALPHIL01-C07, genitalia on slide TL958♂; BOLD sample ID PYPHI024-21, Genbank Accession Number PP196718). PHILIPPINES: Mindoro, Mount Halcon, 1300 m, 15-17.01.1998 (W. Mey, V. Samarita).
Paratypes: 9 ♂ (specimen identifiers MfN: coll.mfn-berlin.de_u_d9003e, f05b70, ef4378, 315da2, b4f995, e64d77, 22c8c5, daec43; PNM: id.bioseasia.org_u_023570), 6 ♀ (specimen identifiers MfN: coll.mfn-berlin.de_u_994d22, 28a23a, a5554b, 3786e7, 76e66b; PNM: id.bioseasia.org_u_02358a) (detailed information in Table S1; https://doi.org/10.5061/dryad.b8gtht7mh).
Other specimens examined: 6 unsexed (detailed information in Table S1; https://doi.org/10.5061/ dryad.b8gtht7mh).
SIMILAR SPECIES
Microchilo elgrecoi Błeszyński, 1966, M. inexpectellus Błeszyński, 1965, M. kawabei Inoue, 1989.
DIAGNOSIS
This species (Fig. 54) is somewhat larger than Microchilo spinosus sp. n. and Microchilo imminutela sp. n. and smaller than M. cebuano sp. n. The shape of the antemedian line separates M. bundoki sp. n. from M. cebuano sp. n. and M. spinosus sp. n. The wing pattern of M. bundoki sp. n. is identical to M. imminutela sp. n.; however, M. bundoki sp. n. has slightly longer forewing (5-6 mm) than M. imminutela sp. n. (3.5 mm). In male genitalia (Fig. 119), this species is separated from M. kawabei and M. inexpectellus by the costal tip of the valva pointing upwards in M. bundoki sp. n., while it points posterad in M. kawabei and M. inexpectellus. Male genitalia are very similar to those of Microchilo elgrecoi but are separated from the latter by the absence of cornutus on the vesical of the phallus (one cornutus in M. elgrecoi). From Microchilo spinosus sp. n., it is separated by the broad, bulky uncus (narrow in M. spinosus sp. n.) and the absence of cornuti on the vesica (seven cornuti in M. spinosus sp. n.). The male of M. imminutela sp. n. is not known. In female genitalia (Fig. 176), the lightly sclerotized tubular colliculum and the lightly sclerotized lanceolate signum on the corpus bursae separate this species from other Philippines species. The lightly sclerotized lanceolate signum on the corpus bursae of M. bundoki sp. n. is shared with M. elgrecoi; however, the latter species has two longitudinal ribs in place of the tubular colliculum.
HABITUS (FIG. 54)
Forewing length 5.0-6.3 mm (n = 5); greyish, scattered with brown scales. Antemedian line strongly bent outwards in costal half, then running straight downwards to dorsum, thin, white. Median area dark brown, with tawny longitudinal band on its middle. Postmedian line white, regularly arched. Subterminal area suffused with white scales. Margin with dark brown dots at veins. Fringes chequered dirty white and greyish brown. Hindwing greyish brown.
MALE GENITALIA (FIG. 118)
Uncus 7/10 X tegumen length, narrowed at basal 1/3, apex rounded, spoon-shaped. Gnathos arms projecting at connection into a short double tip. Valva ventral margin slightly convex, apex rounded; costa of valva straight, strongly sclerotized, distally projecting into a small tip pointing upwards. Juxta short, with base rounded, apex slightly incurved. Phallus stout, straight. Vesica devoid of cornuti, covered with tiny spines of ca 20 μm.
FEMALE GENITALIA (FIG. 176)
Papillae anales small, triangular in lateral view, ventrally not fused. Intersegmental membrane roughly as long as length of tergite VIII. Posterior apophyses ca 2.6 X length of tergite VIII. Intersegmental membrane VIII-IX about 2/3 X length of tergite VIII. Anterior apophyses 2.3 X length of tergite VIII. Colliculum cylindrical, lightly sclerotized, covered with minute spicules. Ductus bursae straight, narrow, roughly as long as corpus bursae. Corpus bursae ovoid, with one lanceolate signum, lightly sclerotized.
DISTRIBUTION
PHILIPPINES: Luzon, Mindoro. Collected at altitudes between 1150 and 2350 m.
DNA BARCODING
The highest intraspecific p-distance of 2.3 % is found between samples MFNLEP-PYRALPHIL01-C05 from Luzon (Nueva Vizcaya) and MFNLEP-PYRALPHIL01-C07 from Mindoro.
ETYMOLOGY
From the Tagalog “bundok” for mountain, refering to the exclusively montane distribution of the species.
REMARKS
The manuscript name “ Microchilo luzonella ” Gaskin & Shaffer was appended to a series of specimens in the NHMUK. However, this name has not been published anywhere and is hence not valid.
description: Published as part of Léger, Théo, 2024, Half of the Diversity Undescribed: Integrative Taxonomy Reveals 32 New Species and a High Cryptic Diversity in the Scopariinae and Crambinae of the Philippines (Lepidoptera: Crambidae), pp. 1-93 in Bulletin of the Society of Systematic Biologists 3 (2) on pages 76-77, DOI: 10.18061/bssb.v3i2.9527, http://zenodo.org/record/15116964