Plateros rubiginosus Kazantsev, 2020

Kazantsev, S. V., 2020, New species of Plateros Bourgeois from Sulawesi (Coleoptera: Lycidae), Russian Entomological Journal 29 (2), pp. 161-172 : 165-166

Plateros rubiginosus Kazantsev , sp.n.

Figs 8–9 , 27–28 .

MATERIAL: Holotype, ♂, Indonesia, S Sulawesi, N slopes [of] Mt. Pangopango , 3°09´46´´S 119°49´45´´E, 1740–1780 m, 9–

11.I.2020, S. Kazantsev leg. ( ICM); paratype, ♀ , same label ( ICM).

DESCRIPTION. Male. Dark brown to black; pronotum and elytra rusty red with bright red pubescence ( Fig. 8 ).

Vertex with prominent semi-circular impression behind antennal prominence. Eyes large, interocular distance ca. 1.2 times shorter than eye diameter. Labrum small, transverse, truncate anteriorly. Palps slender; ultimate palpomeres considerably longer than wide, almost parallel-sided in proximal two thirds, outwardly curved distally, obliquely truncate and flattened at apex. Antennal sockets separated by narrow lamina. Antennae attaining to elytral three fifths, antennomere 3 triangular, antennomeres 4–10 ramose, ramus of antennomere 4 (shortest) ca. 2.1 times shorter than stem and ramus of antennomere 8 (longest) ca. 1.3 times shorter than stem; antennomere 3 (stem) ca. 2.8 times longer than antennomere 2 and ca. 1.1 times shorter than antennomere 4; antennomeres 3–11 with scarce short erect pubescence ( Fig. 8 ).

Pronotum transverse, ca. 1.3 times as wide as long, trapezoidal, moderately bisinuate basally and strongly semi-circularly produced anteriorly, with slightly concave sides, long acute posterior and obsolete anterior angles. Scutellum subquadrate, parallel-sided, truncate at apex ( Fig. 8 ).

Elytra long, ca. 3.8 times longer than wide at humeri, parallel-sided, only very slightly wider in distal fourth; with four prominent, equally developed primary costae; interstices with even rows of small subquadrate cells; pubescence dense, short and decumbent ( Fig. 8 ).

Legs slender ( Fig. 8 ).

Median lobe of aedeagus more or less simple and straight, only noticeably widened and bent in distal half ( Figs 27–28 ).

Female. Similar to male, but eyes smaller, interocular distance subequal to eye diameter, antennae serrate, with short decumbent pubescence and separate long erect bristles, and elytra widest at humeri, slightly narrowing distally ( Fig. 9 ).

Length: 9.4 (holotype male) – 10.2 (paratype female) mm. Width (humerally): 2.1 (holotype male) – 2.4 (paratype female) mm.

ETYMOLOGY. The name of the new species is derived from the Latin for´rusty red´, alluding to the coloration of its upperside.

DIAGNOSIS. Plateros rubiginosus sp.n., may be distinguished from P. princeps (Kleine, 1939) , also with ramose male antennae, by the rusty red coloration of upperside and distinctly shorter antennal rami ( Fig. 8 ).

Figures

Figs 7–9. General view of Plateros: 7 — P. rimbaensis sp.n.; 8–9 — P. rubiginosus sp.n.; 7–8 — holotypes, males; 9 — paratype female. Рис. 7–9. ОбЩий вид Plateros: 7 — P. rimbaensis sp.n.; 8–9 — P. rubiginosus sp.n.; 7–8 — голотипы, самцы; 8 — паратип, самка.

Figs 23–32. Aedeagi of Plateros, holotypes, males: 23–24 — P. pallidimarginatus sp.n.; 25–26 — P. rimbaensis sp.n.; 27–28 — P. rubiginosus sp.n.; 29–30 — P. unisuturalis sp.n.; 31–32 — P. wartabonensis sp.n.; 23, 31 — dorsally; 25, 27, 29 — ventrally; 24, 26, 28, 30, 32 — laterally. Scale bars: 0.5 mm. Рис. 23–32. Эдеагусы Plateros, голотипы, самцы: 23–24 — P. pallidimarginatus sp.n.; 25–26 — P. rimbaensis sp.n.; 27–28 — P. rubiginosus sp.n.; 29–30 — P. unisuturalis sp.n.; 31–32 — P. wartabonensis sp.n.; 23, 31 — сверху; 25, 27, 29 — сниЗу; 24, 26, 28, 30, 32 — сбоку. Масштабные линейки: 0.5 мм.