Metapocyrtus (Orthocyrtus) reagani Cabras, Medina & Bollino, 2022

Cabras, Analyn Anzano, Medina, Milton Norman, Madjos, Genelyn & Bollino, Maurizio, 2022, Three new species of the genus Metapocyrtus Heller 1912, subgenus Orthocyrtus Heller 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini), from Mindanao Island, Philippines, ZooKeys 1088, pp. 115-128 : 115

Metapocyrtus (Orthocyrtus) reagani Cabras, Medina & Bollino sp. nov.

Figs 9-12

Holotype

(Figs 9 , 11 ), male: Philippines - Mindanao / Talakag / Bukidnon / July 2018 / coll. Reagan Joseph Villanueva (typed on white card) // HOLOTYPE male / Metapocyrtus (Orthocyrtus) reagani / CABRAS, MEDINA & BOLLINO, 2021 (typed on red card). Presently in UMCRC, will be deposited in PNM.

Paratypes

(8♂♂, 8♀♀): 6♂♂, 5♀♀: same data of the Holotype, all in UMCRC; 2♂♂, 2 ♀♀: Philippinen: / N-Mindanao Insel / Mt. Kitanglad / IV.1987; 1 ♀: Philippines - Mindanao / Intavas / (Bukidnon) / January-March 2016 / coll. Bollino, all in MBLI.

Diagnosis.

Metapocyrtus (Orthocyrtus) reagani sp. nov. differs from all other species of the subgenus by its unique elytral marking consisting of thick basal bands, a moderately thin median transverse band, and a distorted subtriangular stripe on apical third, and by its stout aedeagus. Contrary to M. (O.) tboli , which has two small spots on each side of the disc, M. (O.) reagani has a transverse median stripe on the pronotum.

Description.

Male. Dimensions (in mm): LB 12.5-13.0 (holotype 12.5, ā: 12.71), LR 2.0-2.2 m (2.0, ā: 2.1), WR 1.6-1.9 (1.6 mm, ā: 1.78), LP 4.0-4.1 (4.0, ā: 4.03), WP: 4.7-5.0 (4.7, ā: 4.86), LE 8.0-8.5 (8.0, ā: 8.3), WE 6.0-6.5 (6.0 mm, ā: 6.24). N = 7.

Integument black. Body surface, rostrum, head, and underside with a weak luster.

Body subglabrous.

Head subglabrous, sparsely minutely pubescent, with elongated stripe of metallic, light-yellow and pale-blue, elliptical to round scales on each side below the eye, and light-colored hairs on lateroventral parts; forehead between eyes with sparse metallic, light-yellow and pale-blue, round scales. Eyes medium-sized and moderately convex.

Rostrum weakly rugose and coarsely punctured, longer than wide (LR/WR: 1.25), bearing minute, light-colored, adpressed hairs on dorsum; lateral surface below antennal scrobes moderately covered with short, brownish hairs, which become longer towards apex; transverse basal groove distinct; longitudinal groove along midline faint, slightly depressed on middle and beset with metallic, light-yellow and pale-blue, round scales; dorsum finely punctured; dorsal surface moderately convex; lateral sides with weakly widened apicad. Antennal scape slightly shorter than funicle, moderately covered with fine, light-colored hairs. Funicular segments I and II almost of the same length, twice as long as wide; segments III-VII nearly as long as wide; club subellipsoidal, nearly three times longer than wide.

Prothorax subglobular, slightly wider than long (LP/WP: 0.85), finely punctate, widest at middle, weakly convex, and with the following scaly markings of metallic, light-yellow and pale-blue, round scales: a) fine transverse band at the anterior margin, b) transverse band in the entire width in the middle, and c) broad lateroventral stripe before the coxa confluent with the anterior and medial bands.

Elytra subovate (LE/WE:1.23), slightly wider and twice longer than prothorax (WE/WP: 1.28, LE/LP: 2.0), body surface black, sub-glabrous, finely setiferous punctate, moderately convex; apex with sparse, light-colored, fine hairs. Each elytron with the following scaly markings of metallic, light-yellow to pale-blue, round scales: a) a thick transverse band from stria I to lateral margin slightly constricted on stria V; b) a thin, median, transverse band starting from stria I to stria VIII; c) a distorted subtriangular stripe on apical third; d) a long stripe along lateral margin from behind the middle to apex, confluent with apical stripes.

Legs with strongly clavate femora. Femora sparsely covered with minute, light-colored hairs, with apex sparsely covered with pale-blue, hair-like scales. Tibiae covered with subadpressed, light-colored hairs and long, light-colored bristles along inner margin; tibiae weakly serrate along inner margin. Fore tibiae bear a mucro at apex. Tarsomeres covered with pubescence. Coxae barely pubescent with yellow ochre, round scales on distal end. Mesoventrite covered with light-colored, adpressed hairs. Metaventrite with light-colored, adpressed hairs and light-yellow ochre, round scales at lateral sides. Ventrite I weakly depressed on disc, with light-colored, adpressed hairs and light-yellow ochre, round scales towards lateral margin. Ventrites II-V sparsely covered with adpressed hairs, especially towards margin. Ventrite V flattened, apical half finely densely punctured, interspersed sparsely with pale-blue, hair-like scales. Ventrites I-V with dense and long, light-brown hairs; laterally with sparse, light-colored hairs.

Male genitalia as shown in Figs 19-21 .

Female. Dimensions (in mm): LB 14.5-14.8 ( ā: 14.62), LR 2.5-2.6 ( ā: 2.54), WR 2.0-2.2 ( ā: 2.08). LP 4.0-4.2 ( ā: 4.08). WP 5.0-5.2 ( ā: 5.08), LE 10.0-10.3 ( ā: 10.12). WE 8.0-8.3 ( ā: 8.12). N = 5.

Habitus as shown in Figs 10 , 12 .

Females differ from males in the following: a) pronotum slightly wider but nearly as long as male (LP/WP 0.8-0.81); b) pronotum imperfectly subglobular and slightly sulcate, and c) elytra imperfectly subovate (LE/WE 1.14- 1.25), longer and wider (WE/WP 1.59-1.6, LE/LP 2.45-2.5) than in male, widest before middle; d) ventrite 1 flattened or slightly convex on disc. Metasternum and Ventrite 1 flattish. Otherwise, female similar to the male.

Etymology.

The specific epithet is named after Reagan Joseph Villanueva (Davao, Philippines) for his great contribution in the advancement of insect studies in the Philippines, particularly the order Odonata . Invariable genitive.

Distribution.

Metapocyrtus (Orthocyrtus) reagani sp. nov. is known from a restricted area of Bukidnon Province (Fig. 22 ).

Figures

Figure 22. Distribution of Metapocyrtus (Orthocyrtus) spp. on Mindanao Island, Philippines.

Figures 9 - 12. Metapocyrtus (Orthocyrtus) reagani sp. nov. 9 male holotype, dorsal view 10 female, dorsal view 11 ditto, male, lateral view 12 ditto, female, lateral view.

Figures 13 - 21. Male genitalia of Orthocyrtus species 13 - 21: 13 - 15 Metapocyrtus (Orthocyrtus) regalis sp. nov. 16 - 18 Metapocyrtus (Orthocyrtus) tboli sp. nov. 19 - 21 Metapocyrtus (Orthocyrtus) reagani sp. nov.; 13, 16, 19 aedeagus in lateral view 14, 17, 20 idem. in dorsal view 15, 18, 21 sternite IX in dorsal view.