Polycatus barsevskisi Bramanti, Bramanti, 2020
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publication ID |
https://doi.org/ 10.5281/zenodo.12520720 |
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persistent identifier |
https://treatment.plazi.org/id/03BC2D22-FFF6-032C-CA7B-237DBB16FBB7 |
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treatment provided by |
Felipe |
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scientific name |
Polycatus barsevskisi Bramanti, Bramanti |
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2. Polycatus barsevskisi Bramanti, Bramanti View in CoL &
Rukmane, sp. nov. ( Fig. 2 View Fig , 7)
Bramanti A., Bramanti A., Rukmane-Bārbale A. 2020
Type material. Holotype, Male ( Fig. 2.1-5 View Fig ): Mindanao Isl. / Davao del Sur prov. / Mount Apo / II.2014, local collector leg. (white label) ; ‘’ HOLOTYPE / Polycatus barsevskisi Bramanti, Bramanti & Rukmane’’ (red label) ( BRAA) .
Paratypes (8 males, 2 female): 1 male, Philippines, Mindanao / Sarangani prov. / Kiamba / II. 2015 / local collector leg.; 1 male, same as previous, but III. 2016; 1 male, same as previous, but X. 2018; 1 male, Philippines, Mindanao Is / Sarangani prov. / Malungon / X. 2016 / local collector leg.; 2 males, PHILIPPINES / Mindanao, South Cotabato, T’Boli / X. 2015 / local collector leg. (all on white labels, all in DUBC); 1 male, 1 female, Philippines, Mindanao / Sarangani prov. / Malungon / X. 2016 / local collector leg; 1 female, Philippines, Mindanao / Sarangani prov., Kiamba / XI. 2019 / local collector leg.; 1 male, Mindanao Isl. / Davao del Sur prov. / Mount Apo / II.2014 , local collector leg. (all on white rectangular labels, all in BRAA). All with additional red label: ‘’ PARATYPE / Polycatus barsevskisi Bramanti, Bramanti & Rukmane’’.
Distribution. Mindanao Island: Davao del Sur, South Cotabato and Sarangani prov. ( Fig. 5).
Description. Male. Measurements (N=9): LB: 10.85-14.8 (holotype 13.2, mean 13.02); LR: 2.1- 2.7 (holotype 2.55, mean 2.42); WR: 1.55-2.1 (holotype 2.1, mean 1.84); LP: 2.5-4 (holotype 2.55, mean 3.01); WP: 2.75-3.2 (holotype 2.8, mean 2.98); LE: 6.6-9 (holotype 8.9, mean 7.59); WE: 4.3-4.9 (holotype 4.9, mean 4.98).
Body, head and legs black, gently punctured, with markings of shiny, metallic green, round to recumbent scales on all parts except for antennae with no scally markings. Head gently punctured, without hairs dorsally, with two small patches of scales, one along inner margin of each eye. Eyes small, prominent from the outline of the head, peak just in the middle. Forehead weakly bulging dorsally, three times as wide as eye. Rostrum more than twice as long as head, (LR/WR 1.21), dorsally with oblong medial bulge and two oblong lanceolate impressions one on each side of the bulge, small lanceolate impression subbasally on each lateral part; irregularly dispersed scales mingled with rare, light brown hairs along each dorsal impression; in dorsal contour ventral part strongly increased to apex, dorsal part incurved along antennal scape; laterally space above antennal scrobe covered with sparse short light brown hairs, space bellow and underside completely covered with metallic scales, mingled with long, dense hairs. Antenna strongly punctured, scape mingled with long, dark brown hairs, antennomers mingled with long, light golden hairs; basal antennomere 1.5 times as long as wide, slightly shorter and wider than antennomere II; antennomere II nearly three times as long as wide, two times longer than III-V; III-V subequal in size, same length and width, shorter than VI-VII; VI-VII subequal in size, longer than wide; club strongly narrowed at base, widest at apical 2/3, nearly three times as long as wide. Prothorax with fine puncture on all parts, (LP/WP 0.91), disc with impression medially at apical part; anterior edge dorsally straight, lateral parts slightly folded; posterior edge straight dorsally, dorso-lateral part strongly bended then gradually folded to underside, mingled with sparse light brown hairs; prothorax with the following markings: 1) two longitudinal elongated spots medially on disc, each slightly redirected laterally from the middline; 2) longitudinal line along middle of each lateral part, from just before apex to basal 1/2; 3) transverse line from ventral part to middle of each lateral part subapically; 4) ventral part completely covered with metallic scales except space below coxa; in dorsal contour widest at apical ½, narrowed just after the middle and gradually widened to base; in lateral contour nearly straight, widest just in the middle. Elytra slender, LE/WE 1.82, deep longitudinal hollows on all length, hollows reined by deep puncture rows, puncture corresponds by short light brown hairs; dorsally subbasal part folded; apical part mingled with longer light hairs; each elytron with the following scally markings: 1) irregular patch of scales along subbasal fold; 2) longitudinal line along lateral margin; 3) subtriangular patch just before apex; 4) elongated patch near apex along interval II-III; 5) various number of chaotically dispersed
Bramanti A., Bramanti A., Rukmane-Bārbale A. 2020
scally patches on the rest parts of elytra ( Fig. 2.18 View Fig -19); LE/LP 3.49, WE/WP 1.75. Coxa, femur, tibia and tarsus with fine puncture on all parts, tarsite I thicker than rest, hind tarsite II longer than wide. Aedeagus as in Fig. 2.11 View Fig -13, 2.15.
Female ( Fig. 2.6 View Fig -10, 2.16-17). Measurements (n=2): LB: 10.95-11.8 (mean 11.38); LR: 3.35-3.4 (mean 3.38); WR: 1.65-1.75 (mean 1.7); LP: 2.45-2.6 (mean 2.53); WP: 2.25-2.3 (mean 2.28); LE: 8.5-8.8 (mean 8.65); WE: 4.85-5 (mean 4.93). Larger, elytra wider, more strongly rounded (LE/WE 1.76), otherwise as in males.
Differential analyses. Polycatus barsevskisi sp. nov. is similar to all species of the panayensis group by it’s markings on pronotum at central part of the disc. Additionally to geographical isolation, species might be easily distinguished by deep longitudinal continuous hollows on elytra, on contrary, elytra of P. caterinae from the same Mindanao Island is nearly smooth, while elytra of P. panayensis and P. negrosensis from Panay and Negros Islands is with deep discontinued puncture.
Etymology. The species is dedicated to Arvīds Barševskis (Daugavpils, Latvia), famous coleopterologist, as appreciation to his contribution to DUBC and continuous support and advices in study of systematic of coleoptera.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.