Haroldius jechaer, Král & Hájek, 2012

Král, David & Hájek, Jiří, 2012, Haroldius jechaer sp. nov. (Coleoptera: Scarabaeidae) from Yunnan, China, Acta Entomologica Musei Nationalis Pragae 52 (1), pp. 207-215 : 208-210

Haroldius jechaer sp. nov.

( Figs. 1–3 )

Type locality. China, Yunnan province, Tengchong, Laifeng Shan National Forest Park, 25°01.1′N 098°29.1′E, 1700–1900 m a.s.l.

Type material. HOLOTYPE: J ( NMPC), ‘ CHINA: Yunnan prov., 4.VI.2007 / TENGCHONG, 1700-1900 m, / LAIFENG SHAN Nat. Forest Park / 25°01.1’N 098°29.1’E, / J. Hájek & J. Růžička leg. // individually collected under / stones and logs, on soil surface, / on dead wood and on plants and / shrubs, wet mixed forest [printed] // Haroldius jechaer sp. nov ., HOLOTYPUS J, David Král & Jiří Hájek det. 2012 [red, printed]’.

Description of holotype. Total body length 3.8 mm. Approximately hemispheric in shape, broadest at middle of elytra (maximum width 2.8 mm); colour of dorsal surface black, distinctly shiny; clypeus anterolaterally, genae laterally, tibiae and tarsi brownish; macrosetation pale ( Figs. 1, 2 ).

Head. Anterior margin of clypeus with two sharp denticles separated by V-shaped emargination, distinctly depressed along anterolateral margin. Clypeo-genal and fronto-clypeal sulci absent. Frons feebly convex. Lateral outline of gena angulate, bordered. Dorsal surface of head slightly microsculptured and covered with shallow, densely distributed punctures separated by about three their diameters, several punctures mainly on clypeus bearing very fine and short, erect macrosetae. Ultimate maxillary palpomere much longer than three proximal palpomeres together.

Pronotum transverse, convex, basal area not depressed, about twice as wide as long, anterior margin bisinuate, anterior angles broadly rounded towards straight subparallel-sided lateral margins; basis simply rounded, finely bordered. Surface densely and coarsely punctate, each puncture bearing short semierect macroseta, shape of punctures broadly oval; small semielliptic area near base (reaching to beginning of elytron stria 2) with shallow, longitudinal striolae.

Scutellar shield absent.

Elytra distinctly convex, not considerably depressed basally in lateral view ( Fig. 2 ); striae finely but distinctly impressed over whole length, intervals flat, all of approximately same width, punctation coarse and dense, punctures arranged in somewhat irregular longitudinal rows along striae, macrosetae simply acute, erect, only their apices bent slightly posteriad.

Protibiae moderately widened apicad, bidentate; meso- and metatibiae rather strongly widened, slightly sinuate externally, apical margin of metatibia straight ( Fig. 1 ).

Male genitalia.Aedeagus symmetrical; parameres simple, broadly rounded to apex in dorsal aspect, strongly curved and acute apically in lateral aspect ( Figs. 3a,b ).

Differential diagnosis. Haroldius jechaer sp. nov. is similar and probably closely related to H. stevensi Arrow, 1931 in possessing a small bordered semi-elliptic area near the pronotal basis. This character is so far known only in these two species. They can be readily separated as given in Table 1.

Etymology. The name of the new species is composed from Czech phonetic transcription of initials of our ever helpful friend Jan Choleva Růžička (Prague, Czech Republic), an excellent student in Coleoptera , especially in Silphidae and Leiodidae , and co-collector of the holotype. Noun in apposition; pronounce as ye-kha-er.

Collecting circumstances. Wet mixed forest, collected individually.

Distribution. So far known only from the type locality in western Yunnan, China.

Figures

Figs. 1–4. 1–3 – Haroldius jechaer sp. nov. 1 – habitus of holotype, dorsal aspect (body length: 3.8 mm); 2 – same, left lateral aspect; 3 – aedeagus:a – dorsal aspect, b – lateral aspect. 4 – H. stevensi Arrow, 1931, habitus of holotype, dorsal aspect (body length: 3.1 mm).