Anthracites zebra Hebard, 1922

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 : 331-332

Anthracites zebra Hebard, 1922

( Figs 1E , 2E , 14–16 )

Anthracites zebra Hebard, 1922: 218 — Ingrisch, 2015: 90

Type material (not examined). Holotype: • ♂; PHILIPPINES, Mindanao, Mount Apo [6°59'N, 125°16'E]; coll. E.A. Merna; ( ANSP).

Material examined (images and description from Ingrisch, 2015) • 1♂; PHILIPPINES, Mindanao, Misamis Occidental, tributary of Clarin River , elev. 1260 m [8°12'N, 123°42'E]; 14–18 July 1958; coll. H.E. Milliron; ( BPBM) .

New material examined. PHILIPPINES, Misamis Occidental: Mount Malindang : • 1♂; along coast of Linao Lake ; N8.29380, E123.61192; 7 January 2024, 20h26; on Pandan leaf; coll. M.K. Tan; MIN.24.1 ( ZRC) • 1♀; along coast of Linao Lake ; N8.29380, E123.61192; 7 January 2024, 20h26; on herb; coll. M.K. Tan; MIN.24.2 ( ZRC) • 1♂; along coast of Linao Lake ; N8.29562, E123.61205; 7 January 2024, 20h42; on the leaf of a small tree; coll. M.K. Tan; MIN.24.3 ( ZRC) • 1♂; along coast of Linao Lake ; N8.30603, E123.61685, 1555.0± 6.3 m.a.s.l.; 7 January 2024, 21h26; on fern leaf; coll. K.C. Grumo & A.A. Gono; MIN.24.5 ( ZRC) • 1♂; forest near Linao Lake ; N8.30909, E123.61250, 1651.0±11.7; 8 January 2024, before 19h29; on herb near the ground; coll. M.K. Tan; MIN.24.13 ( ZRC) .

Remarks. In Misamis Occidental, this species has been reported in the tributaries of Clarin River to the east of Mount Malindang. New material was collected from Lake Linao to the west side of Mount Malindang from recent field sampling.

There are minor differences in the colour patterns, particularly the dorsum of its femur is not black in the specimens from Mount Malindang, in contrast to the species from Mount Apo and Clarin River. Colour variations were also noted by Ingrisch (2015) between the specimen from Mount Apo and from Clarin River. However, as we do not observe clear-cut differences in the male abdominal apex and titillators ( Fig. 14 ), we do not consider the material from different parts of Mindanao as different species.

Distribution. Davao del Sur: Mount Apo; Misamis Occidental: Clarin River, Lake Linao [new locality record].

Ecology. At Lake Linao, this species was quite abundant among shrubs and tall grasses mixed with herbaceous plants ( Fig. 15 ). At night, adults and juveniles were observed to feed on flowers on numerous occasions ( Fig. 16 ).

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 14. Anthracites zebra Hebard, 1922 male titillators in apical (A), dorso-proximal (B) and ventro-distal (C) views. Scale bars: 1 mm.

FIGURE 15. Anthracites zebra Hebard, 1922 male (A) and female (B) in their natural habitat at Lake Linao.

FIGURE 16. Anthracites zebra Hebard, 1922 females feeding on the flowers of a Melastoma plant at Lake Linao.