Sparedrus chiangmaiensis, Švihla & Dejean, 2007

Švihla, Vladimír & Dejean, in, 2007, Preliminary revision of the genus Sparedrus (Coleoptera: Oedemeridae) from eastern and southeastern Asia, Acta Entomologica Musei Nationalis Pragae 47, pp. 153-168 : 159

Sparedrus chiangmaiensis sp. nov.

( Figs. 3 , 23, 27)

Type locality. Northern Thailand, Chiang Mai province, Chiang Mai.

Type material. HOLOTYPE: J, ‘ Thailand, Chiangmai , 400 m, 22.-29.i.1990, light trap, Malicky lgt.’ ( NMPC).

Description. Coloration. Basic coloration of body rusty, only lateral sides of vertex and pronotum slightly darker, sienna brown ( Fig. 3 ).

Male. Eyes large and protruding, head across eyes ca. three fourths wider than pronotum, very slightly narrowing posteriorly behind eyes. Frons between eyes slightly narrower than length of antennomere 2. Last maxillary palpomere narrowly securiform.Antenna long, exceeding apex of body by slightly less than length of elytra, antennomere 3 slightly more than ten times as long as antennomere 2, antennomeres 3-10 more or less serrate with arcuate inner margin and protruding inner lateroapical corner, antennomeres 6-11 more or less flattened dorsoventrally, more or less curved. Surface of vertex verrucose, matt, covered by long, sparse, semierect white pubescence forming a corner between eyes and paired asterisk in central part of vertex. Pronotum ca. one sixth longer than wide, slightly cordiform, anterior margin very slightly sinuate in middle, nearly straight, anterior corners rounded, lateral margins moderately narrowing posteriorly, moderately sinuate in posterior half, posterior corners obtuse, posterior margin rounded. Surface of pronotum verrucose, matt, covered by long, sparse, semierect white pubescence forming four longitudinal lines in posterior portion. Pronotum with pair of shallow depressions in anterior half, mediolongitudinal groove in middle part, and flat area before posterior margin. Elytra nearly parallel-sided, lateral margin very slightly sinuate in its middle portion, surface densely rugulose-lacunose (Fig. 23), matt, covered by long, sparse, semierect white pubescence, elytral nervation absent. Last tergite exceeding last sternite by ca. one third, apex slightly emarginate, apex of last sternite arcuately emarginate. Tegmen ca. one third shorter than aedeagus, aedagus as in Fig. 27 .

Female unknown.

Length (J). 8.1 mm.

Differential diagnosis. Sparedrus chiangmaiensis sp. nov. belongs to S. longicollis species group as defined by ŠVIHLA (2006b). It differs from S. malickyi sp. nov. by the absence of elytral nervation, different structure of elytral surface, protruding lateral teeth of the aedeagus and slightly wider frons between the eyes, and from S. tryznai taunnguensis Švihla, 2006 , by longer antennae and the aedeagal teeth situated farther from the apex (cf. Figs 2-4 , 23-24, 26-28).

Etymology. Named after the type locality.

Distribution. Northern Thailand.

Figures

Figs. 1-6. Habitus. 1 – Sparedrus karenorum sp. nov., holotype. 2 – S. malickyi sp. nov., holotype. 3 – S. chiangmaiensis sp. nov., holotype. 4 – S. tryznai taunnguensis Švihla, 2006, paratype. 5 – S. sasajii nom. nov., holotype. 6 – S. rufus (Pic, 1922), syntype. (Photo J. Macek).

Figs. 25-29. Aedeagus, ventral view. 25 – Sparedrus karenorum sp. nov.; 26 – S. malickyi sp. nov.; 27 – S. chiangmaiensis sp. nov.; 28 – S. tryznai taunnguensis Švihla, 2006; 29 – S. rufus (Pic, 1922), with apex of aedeagus in lateral view. Scale = 1 mm.