Anthracites pyramidalis Ingrisch, 2015

Sabang, Aira Mae M., Bahoy, Daphne Cayle M., Grumo, Kim C., Gono, Alfredo Iii A., Salvador, Jewel Anne G., Rivera, Rodrin R., Nuñeza, Olga Macas, Robillard, Tony & Tan, Ming Kai, 2024, A taxonomic review on the katydids of the genus Anthracites Redtenbacher, 1891 (Tettigoniidae: Conocephalinae: Agraeciini) from Mindanao, Philippines, Zootaxa 5507 (2), pp. 313-336 : 323-327

Anthracites pyramidalis Ingrisch, 2015

( Figs 1C , 2C , 7–10 )

Anthracites pyramidalis Ingrisch, 2015: 83

Type material examined (images and description from Ingrisch, 2015). Holotype: • ♀; PHILIPPINES, Mindanao, Misamis Oriental, Mount Balatukan [8°46'N, 124°59'E], elev. 1000–2000 m; 1–5 May1967; coll. H.M. Torrevillas; ( BPBM).

New material examined. PHILIPPINES, Mindanao , Misamis Oriental : • 1♂; Claveria, near Mount Sumagaya ; N8.70113, E125.01298, 1259.0± 5.8 m.a.s.l.; 13 February 2023, 19h56; mossy forest; coll. local guide; MIN.23.11 • 1♀; Claveria, near Mount Sumagaya ; N8.70109, E125.01304, 1258.0±5.0 m.a.s.l.; 13 February 2023, 20h00; mossy forest, on foliage of shrub; coll. M.K. Tan; MIN.23.14 ( ZRC) • 1♂; Claveria, near Mount Sumagaya ; 13 February 2023; coll. J.A. Salvador; MIN.23.19 • 1♀; Claveria, foot of Mount Balutukan ; N8.70567, E125.00653, 1208.0± 6.5 m.a.s.l.; 15 February 2023, 20h; open area outside mossy forest, on shrub leaf; coll. M.K. Tan; MIN.23.53 ( ZRC) • 1♂; Claveria, foot of Mount Balutukan ; N8.70450, E125.00521, 1197.0±6.0 m.a.s.l.; 15 February 2023, 21h06; open area outside mossy forest, on fern leaf; coll. M.K. Tan; MIN.23.58 ( ZRC) • 1♂; Claveria, near Mount Sumagaya ; N8.70142, E125.00961, 1194.0± 6.3 m.a.s.l.; 16 February 2023, 19h30; mossy forest edge; coll. M.K. Tan et al.; MIN.23.64 ( ZRC) • 1♂: buffer zone of the foot of Mount Balatukan ; N8.739639, E125.029097, 1133 m.a.s.l; 7 July 2023; open area in secondary forest, along the trail, on shrub leaf; coll. D.C. Bahoy & A.M. Sabang; 5 ( PNM) • 1♀; Mount Balatukan; N8.743741, E125.019616, 1441 m.a.s.l.; 10 July 2023; on an open area inside the mossy forest of Mount Balatukan , on a shrub leaf; coll. D.C.Bahoy & A.M. Sabang; K15 ( PNM) • 1♂: Gingoog City, Barangay Kalagonoy, Mount Balatukan ; N8.4417, E125.0129, 1200 m.a.s.l.; 17 March 2024, 09h50; along the trail of the buffer zone of Mount Balatukan , in between pandan leaves; coll. D.C. Bahoy & A.M. Sabang; KS3 ( PNM) • 1♂: Gingoog City, Barangay Kalagonoy, Mount Balatukan ; N8.44168, E125.01279, 1223 m.a.s.l.; 17 March 20h24; found in between pandan leaves; coll. D.C. Bahoy & A.M. Sabang; KB9 ( PNM) • 1♀: Gingoog City, Barangay Kalagonoy, Mount Balatukan ; N8.743797, E125.018932, 1460 m.a.s.l.; 10 July 20h23; along the trail of the mossy forest of Mount Balatukan , found on a fern; coll. D.C. Bahoy & A.M. Sabang; K6 ( PNM) • 1♀, 1♂; Gingoog City, Jamboree Site, Mount Balatukan ; N8.4334, E125.016, 1310 m.a.s.l.; 24 March 2024, 09h25; along the campsite, found on leaf of the shrub, coll. D.C. Bahoy & A.M. Sabang; JB11/J13 and JB8/J14 (both PNM) • 1♂; Claveria; foot of Mount Sumagaya-Lumot ; N8.697233, E125.024364, 1232 m.a.s.l.; 22 April 2024, 21h18; open area in a secondary forest, 130 m from a river, found on the leaf of a shrub; coll. D.C. Bahoy & A.M. Sabang; JS4 ( PNM) • 2♂, 1♀; Claveria; foot of Mount Sumagaya-Lumot ; N8.69605, E125.025447, 1253 m.a.s.l.; 23 April 2024, 20h15; open area in a secondary forest, 45 m from a river, found on the leaf of a shrub; coll. D.C. Bahoy & A.M. Sabang; SB24 ( PNM) • 2♂, 1♀; Claveria; foot of Mount Sumagaya-Lumot ; N8.700011, E125.005772, 1172 m.a.s.l.; 25 April 2024, 19h32; along the trail to forest patch, 20 m from a river, found on the leaf of a grass; coll. D.C. Bahoy & A.M. Sabang; SS37 ( PNM) .

PHILIPPINES, Mindanao, South Cotabato: • 1♂; Lake Sebu, foot of the northern slope of Mount Busa ; N6.183222, E124.682778, 1041± 5 m. a.s.l.; 30 January, 2024, 13h57; open area in secondary forest, found on the leaf of a shrub; coll. D.C. Bahoy & A.M. Sabang; AI5 ( PNM) .

Remarks. The species was described based on a female holotype and a male nymph from Mount Balatukan. New material collected from Claveria allows us to describe the adult male.

Revised diagnosis. In additions to the diagnosis given in Ingrisch (2015): the species is similar to Anthracites sinuatus Ingrisch 2015 from Luzon Island and Anthracites romblon Ingrisch, 2015 from Romblon Island in the Xshaped titillators and in the apex of the lateral extension; but the species differs from both species by the face having a black band that widen ventrad (instead of a pair of black bands), abdominal tergites with lateral bands (instead of median band in Anthracites romblon ) and the cercus having a dorsal distal process very long, falcate with acute apex and a shorter nipple-like ventral process, the titillators with only a pair of lateral sclerites (instead of two or none).

Redescription. Male habitus as shown in Figs 1C , 2C .

Head and pronotum. Head and pronotum not different from female ( Figs 5A–C ).

Tegmina and wings. Tegmen micropterous, mirror area partly covered by pronotal disc ( Fig. 7A ), reaching base of second abdominal tergite, with apex subtruncated; infumated (except mirror area), veins orange yellow with cells black, lateral field veins cream coloured ( Figs 7A, 7B ).

Abdomen. Tenth abdominal tergite with posterior margin emarginated at middle, laterally produced into two stout triangular lobes with truncated apices; posterior end at middle depressed forming groove ( Figs 7D, 7E ). Epiproct tongue shaped, at middle depressed ( Fig. 7F ). Cercus stout, slightly curved inwards, dorso-laterally compressed; externo-distal part stoutly conical with subacute apex; at distal end with two inner processes pointing inwards; dorsal process very long (nearly as long as base of cercus), falcate and slightly curved inwards, apex with acute spine; ventral process shorter, reaching middle of dorsal process, elongated nipple-like with apex obtuse ( Figs 7D– F ). Subgenital plate about as long as wide, with anterior margin concave, gently converging lateral margins, apical margin roundly excised ( Fig. 7G ); margin around bases of styli on dorsal side swollen and with cylindrical internal tooth of obtuse apex ( Fig. 7F ). Styli stout with apex obtuse ( Fig. 7F ). Titillators ( Fig. 8 ) separate, X-shaped and wing-like; lateral arm pointing ventro-distally; lateral arm slender forming ‘skeleton of the wing’, gently narrowing into apex faintly hammer-head, apex with stout apical and proximal teeth; proximal of lateral arm with flattened semi-sclerotized hyalinous plate forming ‘wing’; base at proximal end slender and tapering into subacute apex; provided with two pairs of lateral sclerites, roundly conical.

Measurements. See Table 1 .

Distribution. Misamis Oriental: Mount Balatukan, Mount Sumagaya-Lumot; South Cotabato: Lake Sebu [new locality record].

Ecology. This species was found to be abundant in open area outside or near mossy forest ( Figs 9 , 10 ). It is sometimes also found inside the forest among foliage of small trees.

Figures

FIGURE 1. Dorsal habitus of ♂ Anthracites alatus sp. nov. (A), Anthracites geniculatus Dohrn, 1905 (B), Anthracites pyramidalis Ingrisch, 2015 (C), Anthracites sebu sp. nov. (D) and Anthracites zebra Hebard, 1922 (E). Scale bars: 5 mm.

FIGURE 2 Lateral habitus of ♂ Anthracites alatus sp. nov. (A), Anthracites geniculatus Dohrn, 1905 (B), Anthracites pyramidalis Ingrisch, 2015 (C), Anthracites sebu sp. nov. (D) and Anthracites zebra Hebard, 1922 (E). Scale bars: 5 mm.

FIGURE 5. Anthracites geniculatus Dohrn, 1905 ♂: anterior half of body in dorsal (A) and lateral (B) views; face in anterior view (C); abdominal apex in dorsal (D), posterior (E), dorso-lateral (F) and dorso-posterior (G) views. Scale bars: 5 mm (A, B), 2 mm (C–G).

FIGURE 7. Anthracites pyramidalis Ingrisch, 2015 ♂: anterior half of body in dorsal (A) and lateral (B) views; face in anterior view (C); abdominal apex in dorsal (D), dorso-posterior (E), ventro-posterior (F) and ventral (G) views. The arrow points to internal tooth of the subgenital plate. Scale bars: 5 mm (A, B), 2 mm (C–G).

FIGURE 8. Anthracites pyramidalis Ingrisch, 2015 ♂ titillators in ventro-distal (A), ventral (B) and dorso-proximal (C) views. Scale bar: 1 mm.

FIGURE 9. Anthracites pyramidalis Ingrisch, 2015 males in their natural habitat at Claveria.

FIGURE 10. Anthracites pyramidalis Ingrisch, 2015 females in their natural habitat at Claveria.