Metapocyrtus (Dolichocephalocyrtus) agryoglosus, Rukmane-Bārbale, 2024

Rukmane-Bārbale, Anita, 2024, Three new species of the genus Metapocyrtus Heller, 1912 (Curculionidae: Entiminae) from Negros Island, Philippines, Baltic Journal of Coleopterology (Basel, Switzerland) 24 (2), pp. 131-139 : 135

publication ID

https://doi.org/10.59893/bjc.24(2).002

persistent identifier

https://treatment.plazi.org/id/03E5483A-0302-FFAF-B7CA-E2CAFB6D68EB

treatment provided by

Felipe

scientific name

Metapocyrtus (Dolichocephalocyrtus) agryoglosus
status

sp. nov.

Metapocyrtus (Dolichocephalocyrtus) agryoglosus sp. nov.

( Fig. 2C, E, G View Fig )

Type material. Type material. Holotype, male ( Fig. 2C, E View Fig ): PHILIPPINES / C Visayas, Negros Isl. / Mt. Canlaon, 600 – 900m / VI. 2014 / local collector leg. (white printed label) // HOLOTYPE / Metapocyrtus (Dolichocephalocyrtus) agryoglosus / Rukmane-Barbale, 2024 (typed on red card) .

Diagnosis. M. (D.) agryoglosus sp. nov. is similar to M. (D.) chloroglosus sp. nov., but can be distinguished by silvery – white scally markings of M. (D.) agryoglosus sp. nov. instead of glossy green markings of M. (D.) chloroglosus sp. nov.; elytra of M. (D.) agryoglosus sp. nov. in lateral contour raised from base, strongly bulging along apical half, then declined to apex, while in M. (D.) chloroglosus sp. nov. straight from base, not rised along apical half; different shape of male genitalia.

Description. Holotype. Male. Dimensions: LB: 9,5; LE: 5,9; LP: 3,3; WE: 3,6; WP: 3,9; LR: 1,7; WR: 1,3. N = 1.

Integument glossy black, with markings of silver, pale scales. Rostrum with small, irregular patch of scales along midline, long hair- like scales on genae and sides of rostrum. Prothorax with the following markings of silver pale scales: 1) transverse medial band on disc, band redirected downwards along middle, extending to sides; 2) wide transverse bans along anterior margin; 3) large band along each latero ventral part.

Elytra with irregularly dispersed single scales in all length. Fine, long setae on suture from apical middle to apex and laterally on apical end. Tibiae and tarsus covered with setae in all length.

Head moderately punctured; forehead flattish with median furrow from base of rostrum to after posterior ocular edge; eyes slightly convex from outline of head. Rostrum longer than wide (LR/WR 1,3); shallow basal groove; dorsum slightly wrinkled, without median groove; in dorsal contour narrow at base, then straight to apex; ovate impression in front of each eye; in lateral contour straight.

Pronotum spherical, widest at the middle, wider than long (WP/LP 1,18); rough – scaly textured, with shallow medial longitudinal groove; sub apical groove indistinct.

Elytra ovate (LE/WE 1,63), less than two times as long as pronotum (LE/LP 1.78), slightly narrower than prothorax (WE/WP 0,92), with shallow puncture rows, pubescent in all length; in dorsal contour widest just before the middle; in lateral contour constricted at base, gradually increased to widest apical middle, then abruptly decreased to apex.

Genitalia as illustrated ( Fig. 2G View Fig ).

Female. Unknown.

Distribution. The new species is known exclusively from type locality, Negros Island, Mt. Canlaon.

Etymology. Argyro- means "silver," and glosus (shiny surface), perfectly describing its silvery sheen.

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