Sparedrus karenorum, 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 : 155-156

Sparedrus karenorum sp. nov.

( Figs.1 , 14, 16 , 25 )

Type locality. Northern Thailand, Chiang Mai province, Doi Pha Hom Pok, 20°05′N 99°15′E.

Type material. HOLOTYPE: J, ‘ THAILAND, N; Chiang Mai, N; Doi Pha Hom Pok , 20 05N 99 15E, 23.-29.i.2004, leg. T. Ihle’ ( NMEG) . PARATYPES: 2 ♀♀, same data as holotype ( NMEG, NMPC).

Description. Coloration entirely sienna ( Fig. 1 ).

Male. Eyes large, protruding, head across eyes moderately wider than pronotum, nearly parallel-sided behind eyes. Frons between eyes moderately wider than length of antennomere 2. Last palpomere of maxillary palpus securiform as in Fig. 14 . Antenna reaching elytral apex ( Fig. 1 ), antennomere 3 almost four times as long as antennomere 2 ( Fig. 16 ), antennomeres 3-10 more or less serrate with arcuate inner margin and with protruding inner lateroapical corner, antennomeres 6-11 more or less flattened dorsoventrally, more or less curved. Surface of frons and vertex punctate, covered by sparse, long, yellowish white semierect pubescence, semilustrous. Pronotum one fifth longer than wide, very slightly cordiform, moderately ovally depressed in its posterior half, its anterior margin widely rounded, anterior corners rounded, lateral margins moderately sinuate, posterior corners obtuse, posterior margin rounded. Surface of pronotum punctate and pubescent like that of head, semilustrous. Elytra parallel-sided, their surface punctate and pubescent like that of vertex and pronotum, semilustrous, elytral nervation absent. Last tergite exceeding last sternite by ca. one third, apex with triangular emargination, apex of last sternite widely triangularly emarginate. Tegmen only moderately shorter than aedeagus, aedeagus as in Fig. 25 .

Female. Frons between eyes wider than in male, almost twice as long as antennomere 2, antenna shorter, reaching ca. three fourth of elytral length, emarginations of both last tergite and last sternite shallower.

Length (J ♀). 10.6-12.0 mm.

Differential diagnosis. Sparedrus karenorum sp. nov. belongs to the S. unicolor species group as defined by ŠVIHLA (2006b). It is related to S. alesivani Švihla, 2006 ( Nepal) , from which it differs by the absence of small, seriate, impunctate and glabrous areas on elytra and by the slightly wider and more parallel-sided aedeagus in ventral view (cf. ŠVIHLA 2006b).

Etymology. Named after the Karens, one of the tribes inhabiting northern Thailand.

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. 14-22. 14-15. Last maxillary palpomere of male. 14 – Sparedrus karenorum sp. nov.; 15 – S. rufus (Pic, 1922). 16-18. Antennomeres 2-3. 16 – S. karenorum sp. nov.,J; 17 – ditto,♀; 18 – S. atricolor (Pic, 1935),♀. 19-20.Apex of pygidium of female. 19 – S. atricolor; 20 – S. subserratus (Gressitt, 1939). 21-22. Antennomeres 9-10 of female. 21 – S. latipennis (Pic, 1923); 22 – S. angustatus (Pic, 1923). 23-24. Structure of elytra. 23 – S. chiangmaiensis sp. nov. 24 – S. malickyi sp. nov. Scale a – Figs. 16-22; b – Figs. 14-15.

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.