Selaserica hosanagarana, 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 : 20-21

Selaserica hosanagarana sp. nov.

urn:lsid:zoobank.org:act:891648E9-6C6B-4564-8B06-1E6BBE938493

Fig. 3 I–M

Diagnosis

The new species is very similar to Selaserica vagans Fabrizi & Ahrens, 2016; however, the new species differs by the distinctly shorter parameres, as well as by the shape of the apex of the phallobase: the insertion of the left paramere in S. hosanagarana is positioned more laterally than in S. vagans.

Etymology

The name (adjective in the nominative singular) refers to the type locality, Hosanagara ( India).

Type material

Holotype

INDIA • ♂; “ Karnataka, Shimoga, Hosanagara , 589 m, 13°55′ N, 75°04′ E, 22.vi.2018, leg. R. Naveen / 1024 Sericini : Asia spec. / KS 0288 / ICAR-NBAIR-S15”; NBAIR.

Paratype

INDIA • 1 ♂; “ Karnataka, Shimoga, Hosanagara , 589 m, 13°55′ N, 75°04′ E, 18.vi.2018, leg. R. Naveen / 1024 Sericini : Asia spec. / KS 0327 / ICAR-NBAIR-S16”; NBAIR .

Description

MEASUREMENTS. Length: 7.9 mm (variation: 7.9–8.3 mm), length of elytra: 5.3 mm (5.3–5.8 mm), width: 4.3 mm (4.3–4.4 mm).

HABITUS AND COLORATION. Body oval ( Fig. 3M ), reddish brown, antennae yellow, dorsal surface glabrous and shiny.

HEAD. Labroclypeus trapezoidal, distinctly wider than long, widest at base, lateral margins convex and strongly convergent to weakly rounded anterior angles, lateral border and ocular canthus producing a blunt angle, margins weakly reflexed, anterior margin distinctly sinuate medially; surface moderately convex medially, shiny, finely and densely punctate, distance between punctures smaller than their diameter, with a few fine setae anteriorly; frontoclypeal suture finely impressed and weakly angled medially; smooth area anterior to eye approximately three times as wide as long; ocular canthus narrow and moderately wide, densely punctate, with a single short terminal seta. Frons shiny, with fine, dense punctures, glabrous except for a few setae beside eyes. Eyes moderately large, ratio of diameter/ interocular width: 0.64. Antenna with ten antennomeres; club with three antennomeres, 1.3 times as long as remaining antennomeres combined. Mentum elevated and flattened anteriorly.

PRONOTUM. Moderately wide, widest at base, lateral margins nearly straight and subparallel in basal two thirds, in anterior third sides convex and moderately narrowed to anterior angles, anterior angles distinctly produced and sharp, posterior angle blunt, anterior margin convexly produced medially, anterior marginal line complete, basal marginal line absent, base medially without a rim of short fine setae; surface densely and coarsely punctate, punctures with microscopic setae only, otherwise glabrous; lateral anterior and lateral borders sparsely setose; hypomeron carinate at ventral base but slightly produced ventrally, on the carina with numerous long setae. Scutellum small, triangular, dull, with fine and sparse punctures.

ELYTRA. Oblong, widest at posterior third, striae distinctly impressed, finely and densely punctate, intervals slightly convex, with fine, dense punctures concentrated along striae, punctures with minute setae, odd intervals bear a few short, erect setae; epipleural edge fine, ending at convex external apical angle of elytra, epipleura densely setose; apical border membranous, apex covered with short microtrichomes.

ABDOMEN. Ventral surface dull, thorax and metacoxa with large and dense punctures, sparsely finely setose; metacoxa glabrous except for numerous short setae laterally; abdominal sternites shiny, finely and densely punctate, punctures with moderately long setae, each sternite with a transverse row of coarse punctures, each bearing a long seta, penultimate sternite apically with a shiny and smooth but very short chitinous border. Mesosternum between mesocoxae as wide as mesofemur. Ratio of length of metepisternum/metacoxa: 1/1.32. Pygidium moderately convex, shiny, finely and densely punctate, without smooth midline, with a few long setae beside apical border.

LEGS. Moderately wide; femora shiny, with two longitudinal rows of setae, finely and sparsely punctate. Metafemur almost impunctate, anterior edge acute and without adjacent serrated line, anterior longitudinal row of setae complete; posterior ventral margin almost straight, weakly widened in apical half, neither ventrally nor dorsally serrated but smooth, glabrous. Metatibia moderately wide and long, widest at apex, dorsal and ventral margins subparallel in posterior two thirds, ratio of width/length: 1/3.2, longitudinally convex dorsally, with two groups of spines, basal one at one third, apical one at three quarters of metatibial length, basally with a very short serrated line, beside it with a few single short setae; lateral face longitudinally convex, very sparsely punctate and glabrous; ventral margin with three fine, equidistant spines; medial face smooth, apex shallowly concave interiorly near tarsal articulation. Tarsomeres impunctate dorsally, pro- and mesotarsomeres with very dense, fine setae ventrally producing a brush-like structure; metatarsomeres with a strongly serrated, longitudinal ridge ventrally but a parallel carina is absent, sparsely setose ventrally, first metatarsomere a little shorter than following two tarsomeres combined and one third of its length longer than dorsal tibial spur. Protibia moderately long, sharply tridentate. All claws symmetrical, feebly curved and long, with normally developed basal tooth.

MALE GENITALIA. Aedeagus: Fig. 3 I–L.

Female

Unknown.

Figures

Fig. 3. A–D. Neoserica (s. lat.) reuteri sp. nov., holotype, ♂. E–H. Oxyserica goertzae sp. nov., holotype, ♂. I–M. Selaserica hosanagarana sp. nov., holotype, ♂. A, E, I. Aedeagus, left side lateral view. C, G, L. Aedeagus, right side lateral view. B, F, J–K. Parameres, dorsal view. D, H, M. Habitus. Scale bars: 0.5 mm. Habitus not to scale.