Amiserica curvifemorata sp. nov.

Type material examined.

• Holotype: ♂ “ MYANMAR: Chin State WNW Kanpetlet Natmataung Nat. P. / Oasis Mt. Resort 21°11'52.4"N 94°02'27.8"E ca. 1700 m, 30.5- 8.6. 2010 leg. Schillhammer (166) / 1400 Sericini Asia spec. ” (NHMW). • Paratype: 1 ♀ “ MYANMAR: Chin State WNW Kanpetlet Natmataung Nat. P. / Oasis Mt. Resort 21°11'52.4"N 94°02'27.8"E ca. 1700 m, 30.5- 8.6. 2010 leg. Schillhammer (166) ” (ZFMK).

Diagnosis.

Amiserica curvifemorata sp. nov. is very similar to A. flavolucida Ahrens, 2003 and Amiserica similissima Ahrens & Pacholátko, 2005, but it differs by the longer and narrower legs, larger eyes, longer antennal club, and, of course, by the shape of aedeagus: the parameres are sharply pointed at apex and evenly curved (dorsal view); the phallobase is dorsoventrally flattened.

Description of holotype.

Length: 5.4 mm, length of elytra: 4.1 mm, width: 2.9 mm. Body oblong, light brown, ventral surface, head and pronotum brown, elytra yellowish with numerous irregular dark spots, partly iridescent, legs and antenna yellow, dorsal and ventral surface shiny, dorsal surface sparsely setose, with sparse, long, erect-like setae on elytra and pronotum.

Labroclypeus square and narrow, as wide as long, widest at anterior third, lateral margins straight and narrowed towards base, anterior angles strongly convex, lateral margin and ocular canthus produce a distinct angle, anterior margin bluntly emarginate, margins weakly reflexed; surface flat and shiny, finely and densely punctate, with a few long erect setae behind anterior margin and on disc; frontoclypeal suture indistinctly impressed and moderately curved; smooth area anterior to eye 1.5 times as wide as long, strongly convex. Ocular canthus moderately long and narrow, finely and sparsely punctate, with a short terminal seta. Frons shiny, finely and moderately densely punctate, with a few long setae beside eyes and on posterior third. Eyes very large, ratio of diameter / interocular width: 1. Antenna with ten antennomeres, club with three antennomeres, strongly reflexed externally, twice as long as remaining antennomeres combined. Mentum elevated and flattened anteriorly.

Pronotum long and relatively narrow, only a little wider than long, widest at base, lateral margins in basal half weakly concave and subparallel, in anterior half strongly curved anteriorly and convergent to blunt, weakly produced anterior angles, posterior angles almost sharp; anterior margin strongly convex, with a distinct marginal line; basal margin without marginal line; surface with dense and fine punctures each bearing a minute seta; with a few long, erect setae on disc; anterior and lateral borders sparsely setose; hypomeron carinate, basal margin of hypomeron weakly produced ventrally. Scutellum subtriangular, apex moderately sharp, with fine and dense punctures, basal midline smooth, punctures with minute setae.

Elytra oblong, widest at middle, striae distinctly impressed, with fine and dense punctures; intervals moderately convex, with fine and moderately dense punctures concentrated along striae, with sparse single pale, long, erect setae on all intervals, otherwise punctures with minute setae only; epipleural edge moderately strong, ending at strongly rounded external apical angle of elytra, epipleura densely setose, apical border broadly membraneous, with a rim of short microtrichomes.

Ventral surface shiny, with fine and dense punctures, sparsely setose, metacoxa only laterally with a few adpressed setae, otherwise glabrous. Abdominal sternites finely and densely punctate and minutely setose, each sternite with a distinct transverse row of coarse punctures each bearing a short, robust seta. Mesoventrite between mesocoxae as wide as mesofemur. Ratio of length of metepisternum / metacoxa: 1 / 1.54. Pygidium weakly convex and dull, with coarse, dense punctures and dense, fine, long, yellow setae.

Legs long and slender; meso- and metafemur strongly curved, finely densely punctate and glabrous, with two longitudinal rows of setae; anterior margin of metafemur acute, with an adjacent continuously serrated line, posterior ventral margin weakly widened in apical half and not serrate, posterior dorsal margin completely and finely serrate. Metatibia slender and long, widest at apex, ratio width / length: 1 / 3.9, dorsal margin sharply carinate, with one group of spines only at four fifths of metatibial length, basally with a few single spines, beside dorsal margin with a continuously serrated line convergent with dorsal margin behind apical group of spines, between serrated line and dorsal densely and finely punctate and shortly setose; lateral face longitudinally convex, with dense and coarse punctures bearing each a short, fine seta; ventral margin serrate, with three fine and long, almost equidistant spines; medial face finely densely punctate, with fine, addressed setae in punctures; apex interiorly near tarsal articulation bluntly truncate. Tarsomeres dorsally finely densely punctate and with short yellow setae, ventrally with short, sparse setae. Metatarsomeres ventrally with a strongly serrated ridge, laterally not carinate; first metatarsomere slightly shorter than following two tarsomeres combined and little longer than dorsal tibial spur. Protibia long, bidentate, protarsal claws symmetrical, basal tooth of inner claw simply pointed.

Aedeagus: Fig. 1 I – K. Habitus: Fig. 1 G, H.

Variation.

Length: 5.4–5.7 mm, length of elytra: 3.9–4.1 mm, width: 2.9–3.1 mm. Female: Eyes slightly smaller than in male, ratio of diameter / interocular width: 0.72; meso-and metafemur shorter and straight, antennal club composed of three lamellae, short, as long as remaining antennomeres combined.

Etymology.

The name of the new species is derived from the combined Latin words curvus (curved) and femoratus (with femur) (adjective in nominative case singular).