Homalocyrtus bukidnonensis, Rukmane-Bārbale & Acal & Mohagan, 2024

10. Homalocyrtus bukidnonensis sp.

nov.

( Fig. 2H View Figure 2 , 4D View Figure 4 , 5C View Figure 5 , 6E- F View Figure 6 )

Type material. Holotype: ( Fig. 4D View Figure 4 ), male: PHILIPPINES / Mindanao , Bukidnon,

Cabanglasan / X. 2016 / local collector leg. (white printed label). With additional red printed label: HOLOTYPE / Homalocyrtus bukidnonensis Rukmane-Bārbale, 2024 / Rukmane-Bārbale det. ( DUBC).

127 Description. Male. Measurements: LB: 10.1; LE: 7.0; WE: 5.7; LP: 3.0; WP: 3.3; LR: 1.7; WR: 1.7. N = 1 for all measurements.

Integument black, antennae and legs dark brown except black apices; body surface weakly lustrous. Head. Dorsal surface punctured behind eyes, wrinkled between eyes; few sparse setae between eyes; without scally markings; lateroventral side with long white setae along genae; forehead with moderate medial groove from base of rostrum to after distal margin of eye; 1.8 times as wide as eye width; eyes small, not prominent from the outline of the head. Rostrum. ( Fig. 5C View Figure 5 ) Dorsal surface rugose except triangle at apical half; pubescent from base to apical half; same length and width (LR/ WR 1.0); dorsum with medial longitudinal groove from base to before middle of apical half; dorsal contour slightly widened just before the middle, otherwise straight; lateral sides with long white setae in all length, in lateral contour straight, weakly bulging along base; deep, round impression before each eye with corresponding setae. Antennae. Club three times as long as wide; funicular segment I 2.5 times as long as wide, 1.5 times as long as segment II; segment II two times as long as wide, 1.5 times as long as segments III – VII. Prothorax. Strongly rugose, slightly pubescent at lateral parts; without scally markings; wider than long ( WP / LP 1.1); in dorsal contour narrowest along anterior margin, angular dorso lateral edges, widened to widest just before the middle, then slightly incurved to basal 2/3, then straight to base; posterior margin with distinct groove in all length, bulged; anterior margin with weak transverse groove in all length. Elytra. Sub globular; wider than long ( LE / WE 1.22); ( WE / WP 1.72); strongly punctured, moderately pubescent in all length; without scally markings; in dorsal contour widest just after the middle, apex not visible; in lateral contour raised along middle, abruption angle of 100 ° along posterior

128

declivity ( Fig. 2H View Figure 2 ). Male genitalia as shown in Fig. 6E- F View Figure 6 .

Female. Unknown.

Differential analyses: The new species is closely related to H. glendae sp. nov. by the similar, sub globular shape of elytra. Beside different distribution, species can be distinguished by the following characters: 1) abruption angle of elytra along posterior declivity 90 ° in H. glendae sp. nov. while 100 ° in H. bukidnonensis sp. nov.; 2) smaller eyes (1.8 to 1.5 of width of forehead) in H. bukidnonensis sp. nov.; 3) less curved dorsal contour of rostrum in H. bukudnonensis sp. nov.; 4) deep, rounded impression before eyes with corresponding setae in H. bukidnonensis sp. nov. while shallow triangular impression without setae in H. glendae sp. nov.; 5) different shape of male penis.

Etymology. The species epithet is derived from the locality where it was first discovered, serving as a geographical homage and ensuring a clear association with its place of origin.

Distribution. The new species is known exclusively from type locality Mindanao Island, Bukidnon province, Cabanglasan.