Maladera naveeni, Sreedevi & Ranasinghe & Fabrizi & Ahrens, 2019

Sreedevi, Kolla, Ranasinghe, Sasankha, Fabrizi, Silvia & Ahrens, Dirk, 2019, New species and records of Sericini from the Indian subcontinent (Coleoptera, Scarabaeidae) II, European Journal of Taxonomy 567, pp. 1-26 : 10-12

Maladera naveeni sp. nov.

urn:lsid:zoobank.org:act:39D648A9-2F3C-47A7-8550-2868042C1717

Fig. 2 A–D

Diagnosis

Maladera naveeni sp. nov. is very similar to M. cardoni (Brenske, 1896) but differs from the latter by the slightly longer antennal club and the shape of its parameres: the left paramere in the new species is slightly widened before the apex and then at the apex abruptly and strongly bent instead of being evenly narrowed toward the apex and moderately bent.

Etymology

This new species name (noun in the genitive case) is dedicated to the collector of the new species, R. Naveen.

Type material

Holotype

INDIA • ♂; “ Karnataka, Shimoga, Shettyhalli , 570 m, 13°56′ N, 75°34′ E, 26.vi.2018, leg. R. Naveen / 1021 Sericini : Asia spec. / KS 0290 / ICAR-NBAIR-S10”; NBAIR.

Description

MEASUREMENTS. Length: 7.2 mm, length of elytra: 4.9 mm, width: 4.4 mm.

HABITUS AND COLORATION. Body oblong-oval ( Fig. 2D ), dark reddish brown, elytra reddish brown, antennae yellowish, dull, labroclypeus shiny, except a few short setae on sides of elytra, glabrous.

HEAD. Labroclypeus moderately wide and subtrapezoidal, widest at base, lateral margins nearly straight, convergent anteriorly, anterior angles moderately rounded, anterior margin bluntly sinuate medially, margins moderately reflexed; lateral margin and ocular canthus produce an indistinct angle; surface convexly elevated, with a sharp and long longitudinal carina from anterior margin to frontoclypeal suture, finely, densely punctate, anteriorly with large punctures each bearing an erect seta; frontoclypeal suture distinctly incised and elevated, moderately curved; smooth area anterior to eye convex, twice as wide as long; ocular canthus short and narrow (⅓ of ocular diameter), finely densely punctate, with one terminal seta. Frons dull, with dense, fine punctures, with a few single short setae beside eyes. Eyes large, ratio of diameter/interocular width: 0.88. Antenna with ten antennomeres; club with three antennomeres and straight, slightly longer than remaining antennomeres combined. Mentum elevated and slightly flattened anteriorly.

PRONOTUM. Moderately transverse, widest at base, lateral margins in basal half subparallel and straight, in anterior half moderately evenly convex and convergent anteriorly, anterior angles distinctly produced and sharp, posterior angles strongly rounded; anterior margin straight, with fine marginal line, base without marginal line; surface moderately densely and finely punctate, with minute setae in punctures; anterior and lateral margin finely setose; hypomeron carinate, not produced ventrally. Scutellum wide, triangular, with fine, moderately dense punctures.

ELYTRA. Widest at posterior third, striae finely impressed, finely and densely punctate, intervals flat, with fine, dense punctures and with minute setae in punctures, penultimate interval with a few single setae; epipleural edge robust, ending at nearly blunt external apical angle of elytra, epipleura sparsely setose; apical border of elytra membranous, with a fine rim of microtrichomes (visible at ca 100× magnification).

ABDOMEN. Ventral surface dull, finely and densely punctate, with dense and fine, adpressed setae, metasternal disc sparsely covered with longer setae; metacoxa with a few longer setae laterally. Abdominal sternites finely and densely punctate, glabrous, each sternite with a transverse row of punctures each bearing a fine seta. Mesosternum between mesocoxae as wide as mesofemur. Ratio of length of metepisternum/metacoxa: 1/1.66. Pygidium flat, dull, finely and densely punctate, without smooth midline, with long setae along apical margin.

LEGS. Short and moderately wide, shiny; femora with two longitudinal rows of setae, finely and sparsely punctate. Anterior margin of metafemur acute, without adjacent serrated line, anterior row of setae complete; posterior ventral margin smooth, moderately widened at ventral apex, dorsal posterior edge smooth, neither serrate, glabrous. Metatibia short and wide, widest at middle, ratio of width/length: 1/2.79, sharply carinate dorsally, with two groups of spines, basal group at middle, apical group at three quarters of metatibial length, in basal half with a few short, single setae subparallel to dorsal margin; lateral face longitudinally convex, finely and sparsely punctate on side in basal half, glabrous; ventral margin finely serrate, with five equidistant robust setae (partly abraded); medial face smooth and glabrous; apex finely serrate, shallowly sinuate interiorly near tarsal articulation. Tarsomeres dorsally impunctate, glabrous, neither laterally nor dorsally carinate, moderately setose ventrally; metatarsomeres with a strongly serrated ridge ventrally and a smooth subventral longitudinal carina; first metatarsomere slightly shorter than following two tarsomeres combined and slightly longer than dorsal tibial spur. Protibia moderately long, bidentate; anterior claws symmetrical, basal tooth of both claws bluntly truncate at apex.

MALE GENITALIA. Aedeagus: Fig. 2 A–C.

Female

Unknown.

Figures

Fig. 2. A–D. Maladera naveeni sp. nov., holotype, ♂. E–H. Maladera sujitrae sp. nov., holotype, ♂. I–L. Maladera thirthahalliensis sp. nov., holotype, ♂. A, E, I. Aedeagus, left side lateral view. C, G, L.Aedeagus, right side lateral view. B, F, J. Parameres, dorsal view. D, H, L. Habitus. Scale bars: 0.5 mm. Habitus not to scale.