Anthracites alatus Tan, Bahoy & Sabang, 2024

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 : 315-319

publication ID	https://doi.org/ 10.11646/zootaxa.5507.2.5
publication LSID	lsid:zoobank.org:pub:479823CB-815E-4F07-984C-DF8CB748A649
DOI	https://doi.org/10.5281/zenodo.13757691
persistent identifier	https://treatment.plazi.org/id/CA1587ED-FFD1-DD7B-FF7C-67D6FCDC113B
treatment provided by	Plazi
scientific name	Anthracites alatus Tan, Bahoy & Sabang
status	sp. nov.

Treatment

Anthracites alatus Tan, Bahoy & Sabang , sp. nov.

( Figs 1A View FIGURE 1 , 2A View FIGURE 2 , 3 View FIGURE 3 , 4 View FIGURE 4 )

Material examined. Holotype: PHILIPPINES, Mindanao, Misamis Oriental: • ♂; Gingoog, Jamboree Site , Mount Balatukan ; N8.435183, E125.001383, 1436 m.a.s.l; 26 March 2024, 16h50; inside primary forest, on a shrub leaf; coll. D.C. Bahoy & A.M. Sabang; JS12 ( PNM). GoogleMaps

Paratypes (3♂): PHILIPPINES, Mindanao, Misamis Oriental: • 1♂; Gingoog City, Barangay Kalagonoy , Mount Balatukan ; N8.4414, E125.0126, 1250 m.a.s.l; 17 March 2024, 9h36; in an open area of the buffer zone of the foot of the stratovolcano, in between pandan leaf; coll. D.C Bahoy & A.M. Sabang; K20 (MNHN-EO1353) GoogleMaps • 1♂; same locality and date as previous, 1017h; an open area in secondary forest, at the buffer zone of the foot of the stratovolcano, in between pandan leaf; coll. D.C. Bahoy & A.M. Sabang; KS5 (MNHN-EO1354) GoogleMaps • 1♂; Gingoog City, Barangay Kalagonoy, Mount Balatukan ; N8.742659, E125.021199, 1380 m.a.s.l; an open area inside secondary forest, in between pandan leaves; 17 March 2024; coll. D.C. Bahoy & A.M. Sabang; KS31 ( PNM) GoogleMaps .

Etymology. The species name refers to the wing-like titillators with their lateral arms strongly sclerotized and plate-like; alatus = winged in Latin.

Diagnosis. This species is most similar to Anthracites romblon Ingrisch, 2015 from Romblon Island, Anthracites sinuatus Ingrisch, 2015 and Anthracites unispinus Ingrisch, 2015 from Luzon by the face with a pair of black bands; but differs from these species and all other congeners by the pronotum having its anterior margin with two lateral bands, near posterior margin with two large black patches having well-defined margins forming triangles, male tegmen without dark lateral parts, male cercus F-shaped with the apex having two inner processes, male subgenital plate with its posterior margin having dense long setae, and the male titillators strongly sclerotized and wing-like with the lateral arm plate-like (instead of slender with different shapes at the apex).

Description. Habitus of male as shown in Figs 1A View FIGURE 1 , 2A View FIGURE 2 .

Head. Fastigium verticis compressed laterally, in dorsal view conical with faint fine longitudinal groove ( Fig. 3A View FIGURE 3 ); apex truncated, shorter than scapus ( Fig. 3B View FIGURE 3 ). Lateral ocelli anterior to median one. Frons shining with few shallowly impressed dots ( Fig. 3C View FIGURE 3 ).

Thorax. Pronotum smooth, disc broadly rounded into paranota, apical area rounded and faintly shouldered; anterior transverse sulcus short and broadly rounded, posterior transverse sulcus longer and angularly rounded; anterior margin truncated and straight; posterior margin subtruncated ( Fig. 3A View FIGURE 3 ). Paranota with ventral margin concave, posterior margin obliquely rising posteriorly and slightly concave ( Fig. 3B View FIGURE 3 ). Acoustic spiracle large and oval, completely covered by paranota. Prosternum with two long acute spines pointing nearly ventrad. Mesosternal and metasternal lobes conical with acute apices. Internal and external tympanum on anterior tibia slightly swollen with narrow slit.

Legs. Anterior coxa with spine long and slightly curved. Femora with the following number of spines on ventral margins: anterior femur 6–8 external, 5–6 internal; middle femur 6–7 external, 3 internal; posterior femur 8–9 external, 1–2 internal. Knee lobes of anterior and middle femora obtuse or subacute externally and spinose internally; knee of posterior femur bispinose on both sides, longer than those of anterior and middle femora.

Tegmina and wings. Tegmen micropterous, mirror area fully covered by pronotal disc ( Fig. 3A View FIGURE 3 ), reaching apex of third abdominal tergite, with apex subtruncated; hind wing present, but covered by tegmen.

Abdomen. Tenth abdominal tergite transverse, distinctly broader than long, at posterior margin truncated with two very short lateral lobules; posterior margin of lateral lobules raised and having fine setae ( Fig. 3D View FIGURE 3 ). Epiproct broadly tongue shaped, basal half having longitudinal groove at middle ( Fig. 3E View FIGURE 3 ). Cercus short and stout, F-shaped, compressed, distal end roundly truncated ( Fig. 3D View FIGURE 3 ); at apex with two inner processes pointing inwards (perpendicular to length of cercus) ( Fig. 3D View FIGURE 3 ); dorso-distal process conical, larger with apex having small sclerotized tooth, ventroproximal process parallel to and slightly shorter than dorso-distal process, cylindrical, slenderer, with apex obtuse ( Figs 3D–G View FIGURE 3 ). Subgenital plate about as long as wide; with anterior margin concave; apical end angularly emarginated, posterior margin at middle truncated with dense long setae ( Figs 3F, 3G View FIGURE 3 ); margin around bases of styli on dorsal side swollen and with triangular internal tooth of subacute sclerotized apex ( Fig. 3E View FIGURE 3 ). Styli stout with apex rounded ( Fig. 3F View FIGURE 3 ). Titillators ( Fig. 4 View FIGURE 4 ) separate, strongly sclerotized, wing-like; lateral arm plate-like, internal-half very broad, external-third stoutly tongue shaped; apical end broadly rounded, pointing dorso-distally, along margin slightly folded; base with proximal end clog-shaped; provided with two pairs of lateral sclerites weakly sclerotized.

Female. Unknown.

Colouration. Body generally pale yellow when preserved ( Figs 1A View FIGURE 1 , 2A View FIGURE 2 ), green when alive. Face with pair of black bands from inner margin of antennal scapus to outer base of mandibles, widening ventrad ( Fig. 3C View FIGURE 3 ). Median ocellus cream coloured. Scapus with basal-half and dorso-inner side black, otherwise pale yellow; antennae yellow ( Figs 3A–C View FIGURE 3 ). Maxillary palpi with segments pale; mandible black, clypeus with pair of black bands continuing from frons ( Fig. 3B View FIGURE 3 ). Pronotum pale yellow, anterior margin with two lateral bands, near posterior margin with two large black patches having well-defined margins shaping like triangles ( Figs 3A, 3B View FIGURE 3 ). Tegmen with lateral field at base bright yellow, otherwise veins pale yellow and cells generally black ( Fig. 3B View FIGURE 3 ); dorsal field mostly pale yellow, some cells dark brown ( Fig. 3A View FIGURE 3 ). Anterior and middle femora unicolourous pale yellow; fore and middle tibiae similar, but fore tibia having distal part of tympanum with small black dorsum spot and distally slightly darker ( Fig. 3B View FIGURE 3 ). Posterior femur pale yellow, knees slightly darker. Posterior tibia pale yellow with spines brown. Tarsus cream coloured with distal margin black. Abdominal tergite pale yellow, with posterior margin having lateral bands that become narrower towards apical segments ( Fig. 3D View FIGURE 3 ). Male tenth abdominal tergite, epiproct and cercus generally orange yellow ( Fig. 3D View FIGURE 3 ). Sternites and subgenital plate yellow ( Fig. 3F View FIGURE 3 ).