Promeca, Brunner von Wattenwyl, 1895

Tan, Ming Kai & Wahab, Rodzay Bin Haji Abdul, 2020, New taxa and notes on palm and false-leaf katydids (Orthoptera: Tettigoniidae: Mecopodinae, Sexavaini; Pseudophyllinae, Cymatomerini) from Brunei Darussalam, Zootaxa 4808 (2), pp. 301-316 : 311

Promeca c.f. borneana Beier, 1954

( Figs. 8 , 9 )

Material examined. 1 female (KB.19.25), Brunei Darussalam, Temburong District, Ulu Temburong National Park, Ulu Ulu Resort , along Air Terjun Trail , N4.55711, E115.15468, 108.5± 8.1 m.a.s.l., 1936 hours, on foliage, 15 July 2019, coll. M. K. Tan & H. Yeo ( ZRC) .

Remarks. Our specimen resembles the female holotype of Promeca nobilis Beier, 1954 from north Borneo by dark abdominal apex (including ovipositor), base of ovipositor with a large yellow oval patch and subgenital plate with a distinct excision at the apex; but differs by the absence of a median pale stripe stretching from the dorsum of head to the pronotum dorsal disc; the absence of oblique brown stripes on tegmen; and the absence of a median pale strip on last abdominal tergite and epiproct. Our specimen also shows slight differences to P. borneana Beier, 1954 described from Brunei Darussalam in the shape of the meso- and meta-sterna as well as by the subgenital plate having a deeper excision at the apex. Our specimen resembles P. ornata Beier, 1954 from north Borneo by the shape of the subgenital plate but seemingly differs by the shape of the epiproct.

Figures

FIGURE 8. Promeca borneana female (A) and nymph (B) in its natural environment.

FIGURE 9. Promeca borneana female: head and pronotum in dorsal view (A); thoracic sternites in ventral view (B); abdominal apex in dorsal (C) and ventral (D) views; ovipositor in lateral view (E). Scale bars: 5 mm (A, B); 2 mm (C, D).