Calamotropha philippinensis Léger, 2024

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), Bulletin of the Society of Systematic Biologists 3 (2), pp. 1-93 : 58-59

Calamotropha philippinensis Léger , sp. n.

https://zoobank.org/ 0180F47A-9F83-487B-854C-3662F18D97F6

Figs. 42 , 105 , 163 .

MATERIAL

Holotype: ♂ (specimen identifier coll.mfn-berlin.de_u_78b13f, DNA voucher MFNLEP-PYRALPHIL07-D07 , TL1054♂; BOLD sample ID PYPHI106-21, Genbank Accession Number PP196792 ). PHILIPPINES: Negros, Patag , 750 m, 20-25.05.1996 (W. Mey). Deposited in MfN .

Paratypes: 7 ♂ (coll.mfn-berlin.de_u_f30a8c, d6a5f0, 1ddbb9, df0153, e40908, 14d6d4, db2f1b), 1 ♀ (specimen identifier coll.mfn-berlin.de_u_36446d) (detailed information in Table S1; https://doi.org/10.5061/dryad.b8gtht7mh) .

SIMILAR SPECIES

Calamotropha brevistrigellus (Caradja, 1930) , Calamotropha formosella Błeszyński, 1961 , Calamotropha latella (Snellen, 1890) , Calamotropha melanosticta (Hampson, 1896) .

DIAGNOSIS

The white forewing with marked median and subterminal dark brown lines and the characteristic discal dark brown spot ( Fig. 42 ) separate Calamotropha philippinensis sp. n. from other Calamotropha species of the Philippines. Calamotropha philippinensis sp. n. is externally similar to C. brevistrigellus (Caradja, 1932) and C. melanosticta (Hampson, 1896) but can be confidently separated by the ventral hook-like projection of the valva in male genitalia. Male genitalia ( Fig. 105 ) share the ventral notch of the valva and the single cornutus of the vesica with C. formosella , but the ventral projection is narrow and sclerotized in C. philippinensis sp. n. The female genitalia ( Fig. 163 ) are rather simple, with short posterior apophyses; a narrow, sclerotized ring at the antrum; a long, straight ductus bursae; and a glabrous, ovoid corpus bursae.

HABITUS ( FIG. 42 )

Forewing length 4.5-6.7 mm (n = 6); ground color white, sprinkled with brown scales. Median line brown, broadly arched outwards down to CuA2, there forming a characteristic dark brown spot, then arched outwards in dorsal area. Subterminal line brown, broadly arched outwards. Subterminal dash-like brown spot at costa, running parallel to subterminal line. Subapical costal blotch brown, triangular. Margin brown. Fringes copper. Hindwing dirty white, with slightly marked brown margin on costal half.

MALE GENITALIA ( FIG. 105 )

Uncus with W-shaped base, extending into long, narrow projection, with blunt apex; uncus lateral arms connecting to gnathos arms. Gnathos forming broad spatula-shaped projection about 4/5 of uncus projection length. Tegumen arms stout, dorso-medially membranous. Valva short, stout, inwardly curved, densely covered with thick setae on distal half; ventral margin basally with conspicuous thorn-shaped projection pointing inwards; apex broadly rounded. Vinculum large, triangular, with protruding saccus. Vesica with one very short, spine-like cornutus.

FEMALE GENITALIA ( FIG. 163 )

Posterior apophyses ca 4/5 of length of tergite VIII, narrowed on distal half. Anterior apophyses slightly larger than posterior apophyses, narrowed on distal half. Antrum forming sclerotized ring, ventrally notched. Ductus basal 1/4 wrinkled; distal 3/4 narrow, straight. Ductus seminalis branching at midlength of ductus bursae. Corpus bursae ovoid, roughly as long as ductus bursae; membrane reticulate, devoid of signum.

DNA BARCODING

A maximum intraspecific p-distance of 5.4% is observed between samples MFNLEP-PYRALPHIL07-A09 from Luzon (Quezon) and MFNLEP-PYRALPHIL09-F08 from Mindoro.

DISTRIBUTION

PHILIPPINES: Leyte, Luzon (Albay), Mindoro, Negros, Palawan. Collected at altitudes between 650 and 750 m.

REMARKS

Differences are observed in male genitalia between TL1054♂ (specimen of Negros) and the type specimen TL1211♂ (specimen from Leyte): Saccus is rather rounded in TL1054♂ (triangular in TL1211♂), cornutus is reduced to a dot-shaped sclerotized bump (spine-like in TL1211♂), and valva dorsal margin forms a dorsal bump (not observed in TL1211♂). These specimens differ in DNA barcodes by 0.3%.

Figures

Figs 40-47. Wings of Eschata, Calamotropha and Angustalius species. Fig. 40. Eschata cf. rififi Bleszynski, 1965, ♂, specimen coll.mfn-berlin.de_u_bf466f, right half. Fig. 41. Calamotropha obliterans (Walker, 1863), ♂, specimen coll.mfnberlin.de_u_7aa174, right wing. Fig. 42. Calamotropha philippinensis sp. n., ♂, paratype, specimen coll.mfnberlin.de_u_f30a8c, right half. Fig. 43. Calamotropha anacantha sp. n., ♂, holotype, specimen coll.mfnberlin.de_u_1609c7, right wing. Fig. 44. Calamotropha unicolorellus (Zeller, 1863), ♂, specimen coll.mfnberlin.de_u_294fbd, right wing. Fig. 45. Calamotropha sp. 1 cf. oculalis, ♂, specimen coll.mfn-berlin.de_u_1e3488, right wing. Fig. 46. Calamotropha sp. 2 cf. oculalis, ♂, specimen coll.mfn-berlin.de_u_a7f185, right wing. Fig. 47. Angustalius malacelloides (Bleszynski, 1955), specimen coll.mfn-berlin.de_u_e7300e, right half.

Figs. 100-105. Male genitalia of Chilo, Eschata and Calamotropha species. Fig. 100. Chilo suppressalis (Walker, 1863), adapted from fig. 120, p. 180 of Bleszynski (1970c). Fig. 101. Eschata cf. miranda Bleszynski, 1965, slide TL1215♂. Fig. 102. Calamotropha atkinsoni Zeller, 1863, adapted from fig. 129, plate LI of Bleszynski (1970b). Fig. 103. Calamotropha obliterans (Walker, 1863), slide TL1304♂. Fig. 104. Calamotropha unicolorellus (Zeller, 1863), slide TL1405♂. Fig. 105. Calamotropha philippinensis sp. n., paratype, slide TL1211♂.

Figs 160-163. Female genitalia of Calamotropha species. Fig. 160. Calamotropha atkinsoni Zeller, 1863, adapted from fig. 189, plate LXIII of Bleszynski (1970b). Fig. 161. Calamotropha obliterans (Walker, 1863), slide TL1383♀. Fig. 162. Calamotropha unicolorellus (Zeller, 1863), slide TL1381♀. Fig. 163. Calamotropha philippinensis sp. n., paratype, slide TL1225♀.