Indasclera jelineki, Švihla, 2009

Švihla, Vladimír, 2009, Three new Indasclera species from Laos including new data on distribution and list of species (Coleoptera: Oedemeridae), Acta Entomologica Musei Nationalis Pragae 49 (2), pp. 795-804 : 798-800

Indasclera jelineki sp. nov.

( Figs. 11–15 )

Type locality. Northern Laos, Xieng Khouang province, 40 km southeast of Muang Khun, 1300 m a.s.l.

Type material. HOLOTYPE ( KMOJ): J, ‘[Northern] Laos, Xieng Khouang [province], 40 km SE of Muang Khun , alt. 1300 m, 18.v.2008, T. Mizusawa leg. ’ PARATYPES ( HAYJ, NMPC): 3 JJ, same data as holotype.

Description. Coloration ( Fig. 11 ). Head dark slate blue, mouthparts sienna to sooty, underside of antennomere 1 and antennomere 2–3 and 11 sienna, rest of antennomeres darker, sepia. Prothorax saffron yellow, meso- and metasternum and ventral part of abdomen dark slate blue, legs black. Elytra bicolorous, ca. basal fifth and apical two fifths dark slate blue, both areas narrowly connected along lateral margin of each elytron, middle portion of elytra glaucous bluish green.

Male. Eyes rather small, distinctly reniform, protruding, head across eyes slightly wider than pronotum, head behind eyes with sides sinuous, narrowing posteriorly. Last palpomere of maxillary palpus long-securiform, nearly cultriform, antennae reaching almost two thirds of elytral length, last antennomere only very slightly constricted behind its midlength. Surface of head rather roughly and very densely imbricate-punctate, covered by very fine and short, recumbent brown pubescence, matt. Pronotum ca. as long as wide, cordiform, its anterior margin straight, anterior corners rounded, lateral margins rather sinuate, converging posteriorly, posterior corners rounded, posterior margin slightly sinuate in middle. Surface of pronotum sculptured and pubescent like that of head, matt. Pair of anterior pronotal depressions very shallow but distinct, posterior one absent, posterior pronotal margin bordered. Elytra parallelsided in basal half, then slightly narrowing posteriorly, apex of each elytron sharp. Surface of elytra densely and finely rugulose-lacunose, matt, covered by fine and short recumbent pubescence of two colours: dark brown over areas with dark slate blue coloration and whitish over the glaucous bluish-green middle area. Elytral venation only very slightly indicated, almost invisible. Last abdominal tergite twice as long as last sternite, subtriangular, rounded apically, last sternite widely rounded, very shallowly and widely emarginate apically. Tegmen and aedeagus as in Figs. 12–15 .

Female unknown.

Length (J): 6.0– 8.1 mm.

Differential diagnosis. Indasclera jelineki sp. nov. belongs to the I. rugosipennis species group as defined by ŠVIHLA (1997). Four other species in this group possess bicolorous elytra: I. loi ( Gressitt, 1939) ( China: Hainan), I. tonkinensis Švihla, 1997 ( Vietnam) , I. kantneri Švihla, 2002 ( Laos) and I. jendeki Švihla, 2002 ( Laos) . Indasclera jelineki sp. nov. differs from the latter three species by having the parameres dentate on the inner apical face and the aedeagus short with apical teeth not protruding laterally in dorsal view (cf. ŠVIHLA 1997, 2002). The new species differs from I. loi , in which the male is uknown, by having a smaller body, only last antennomere paler and differently coloured elytra with the lateral connection of darker elytral colour not protruding inwards (cf. GRESSITT 1939, ŠVIHLA 1997).

Etymology. I dedicate this species as well to my colleague and friend Josef Jelínek, wellknown specialist in the family Nitidulidae , on the occasion of his 70th birthday.

Distribution. Northern Laos.

Figures

Figs. 11–15. Indasclera jelineki sp. nov. 11 – habitus; 12 – tegmen, ventral view; 13 – apical part of tegmen, lateral view; 14 – aedeagus, lateral view; 15 – apex of aedeagus, dorsal view.