Eulichas sundaensis Hájek, 2009

Hájek, Jiří, 2009, Revision of the genus Eulichas Jacobson, 1913 (Coleoptera: Eulichadidae) II. E. dudgeoni species group, Zootaxa 2192, pp. 1-44 : 35-36

publication ID	https://doi.org/ 10.5281/zenodo.189396
DOI	https://doi.org/10.5281/zenodo.6214448
persistent identifier	https://treatment.plazi.org/id/03AC7D44-D97D-7D68-FF7B-A2CEF2AAC558
treatment provided by	Plazi
scientific name	Eulichas sundaensis Hájek
status	sp. nov.

Treatment

Eulichas sundaensis Hájek , sp. nov.

( Figs. 18–19 View FIGURES 13 – 24 , 39 View FIGURES 25 – 44 , 59 View FIGURES 55 – 64 , 79 View FIGURES 78 – 80 )

Type locality. Indonesia, Sumatra Isl. Lampung prov., Bukit Barisan Selatan Nat. Park, 5 km SW of Liwa, ca. 05°04’S 104°04’E, 600 m.

Type material. 6 specimens — Holotype 3 ( NMPC), labelled: “S SUMATRA: Lampung prov. / BUKIT BARISAN SELATAN N.P.; / 5°4’S 104°4’E; ± 600m; 5km SW / Liwa; J. Bezdĕk leg.; 7.–17.ii.2000 [printed]”. Paratypes: 13 (no. 1), same label data as holotype ( NMPC); 13 (no. 2), “ SOUTH SUMATRA / Lampung Prov. / Wonosoko, Sdajo / lgt. P. Moric 12.iii.2000 [printed]” ( NMPC); 13 (no. 3), “W. Sumatera, 500–800 m / HARAU VALLEY env. / 6–7.2005, loc coll [printed]” ( NMPC); 1Ƥ (no. 4), “W. SUMATERA / Mt. Sanggul, 1200 m / Landai, 6 – 7.2004 [printed]” ( NMPC); 1Ƥ (no. 5), “West Sumatera / MT. TALANG / 3–4.2005, 1000–1500m [printed]” ( NMPC).

Additional material studied. 4 specimens — INDONESIA: JAVA: 13 ( MNHN); 13 1Ƥ, West Java, Tjikurai Mt., 4000’, 1892, H. Fruhstorfer ( MNHN, NMPC); 1Ƥ, West Java, Gunung Papandayan Mt. ( RMNH).

Description. Habitus elongate, fusiform. Body colouring brownish-red in old speciemens from Java, and from brown to brown-blackish in recently collected material. Pale part of setation consists of recumbent yellowish setae covering uniformly pronotum, and forming indistinct ocellations on elytra ( Fig. 18–19 View FIGURES 13 – 24 ).

Measurements. Males: 18–23 mm (holotype 23 mm); females: 22–27 mm.

Head punctation consists of sparse, irregularly distributed moderately large setigerous punctures. Antenna slender, last antennomere filiform, 4.57–6.86 times as long as wide ( Fig. 39 View FIGURES 25 – 44 ), its ventral side smooth.

Pronotum trapezoidal, ca. 1.73–1.87 times as wide as long. Sides regularly rounded in anterior half, then very slightly incised; hind angles distinctly prominent ( Fig. 59 View FIGURES 55 – 64 ). Pronotum with two indistinct rounded depressions on the disc. Punctation consists of sparse moderately coarse setigerous punctures on the disc, which become slightly coarser and denser laterally.

Elytra with numerous longitudinal rows of moderately large punctures, and very fine interstitial setigerous punctures.

Ventral part with fine punctures, which are sparse medially and become larger and denser laterally. Last abdominal ventrite laterally regularly rounded to apex.

Male. Aedeagus with phallobase shorter than parameres. Parameres simple, relatively slender, subparallel. Their apical part (between subapical hook and apex) is relatively short. Subbasal parameral hook is missing, but the subapical hook is developed, slightly prominent. Median lobe narrowly lanceolate ( Fig. 79 View FIGURES 78 – 80 ).

Female. Similar to male in habitus, but larger. Antenna shorter, and more slender.

Remarks. Four old specimens from Java, which represent the only known Eulichas from Java so far, differ from the typical specimens in slightly smaller body length, brownish-red colouration of cuticle, and almost uniform body setation without any ocellations. As I was not able to resolve whether this is only intraspecific variability, I did not designate them as paratypes.

Differential diagnosis. E. sundaensis sp. nov. is not similar to any other species of the E. sikkimensis species complex. It could be easily distinguished based on rather long pronotum with sides almost rounded anteriorly; slender antenna with long filiform last antennomere; slender, parallel sided parameres with short apical part; and slender, narrowly lanceolate median lobe.

Collection circumstances. Specimens from southern Sumatra were collected at light (J. Bezdĕk pers. comm., 2000), while specimens from western Sumatra were swept from vegetation at night (S. Jákl pers. comm., 2008).

Distribution. A species known from several localities in western and southern Sumatra, and western Java.

Etymology. The name is derived from “Sunda” Islands, where the new species occurs.