Vietelmis kovaci Kodada & Čiampor, 2000

Kodada, Ján, Sangpradub, Narumon, Somnark, Rungnapa, Gruľa, Daniel, Žiak, Dávid & Freitag, Hendrik, 2017, Vietelmis jablonskii, a new species of riffle beetle from Laos and Thailand and new faunistic records on Vietelmis Delève, 1968 from Malaysia (Coleoptera: Elmidae), Zootaxa 4268 (1), pp. 131-140 : 139-140

Vietelmis kovaci Kodada & Čiampor, 2000

MALAYSIA: Pahang: 1 ♂ ( CKB): Taman Negara, Nusa camp environment, Tabong River , 13.VI.2001.

MALAYSIA: Pahang: 1 ♂ ( CKB): Kuala Lipis environment, Kenong Rimba Park, Kesong River , 5.VI.2001.

MALAYSIA: Johor: 17 ♂♂, 33 ♀♀, 9 specimens, sex not examined ( CFD, CKB, NMW): Endau Rompin Park, Endau river , 18.V.2001, riv. 15–30 m wide, 0.5–3.0 m deep, partly shaded by the primary forest, substrate stones and gravel.

The specimens listed, represent first faunistic records for Pahang and a second record for Johor; until now the species was known only from two type specimens from Endau Rompin Park.

Remarks on the additional distribution records. At the collecting site in the Tabbong River, the watercourse was ca. 5–10 m wide and ca. 0.5–1.0 m deep, meandering along remnants of the primary forest, the riverine bottom was covered with stones and gravel; the single male specimen was collected from gravel substrate. Some species of Stenelmis Dufour, 1835 and Grouvellinus Champion, 1923 were collected together with V. kovaci . In the same river section, the following taxa were recorded on several trunks of wood: Ancyronyx acaroides Grouvelle, 1896 , Graphelmis anulata Čiampor, 2006 , G. hintoni Čiampor, 2006 , G. grouvellei Delève, 1970 and several species of Elmomorphus Sharp, 1888 (Čiampor 2006) .

The single male specimen from Kenong Rimba Park was found in the Kesong River. At the sampling section, the river was 7–10 m wide, 0.3–0.9 m deep, slowly flowing through the primary forest with substrate containing sand, gravel, submerged wood and dense macrophytes. Okalia globosa Kodada & Čiampor, 2003 , two Leptelmis Sharp, 1888 spp., Graphelmis boukali Čiampor, 2004 and at least two Elmomorphus spp. co-occurred at the locality (Čiampor 2004, Kodada & Čiampor 2003).

Most specimens of V. kovaci were sampled in the large Endau River with strong current, flowing through the Endau Rompin Park ( Fig. 3 ).

Figures

FIGURES 1 – 6. Localities of Uietelmis species: 1) the type locality of Uietelmis jablonskii sp. nov.: tributary of the Nam Song river near Nassom village, Luang Prabang Province, Laos; 2) the second locality of U. jablonskii: Yakruae Creek in the Nam Nao National Park, Phetchabun Province, Thailand; 3) habitat of U. kovaci: the Endau River in Endau-Rompin Park, Johor, Malaysia; 4) the type locality of U. lantiri, U. dentipes and U. ketua: the Sabalangang River, tributary of the Sapulut River, Sabah, Malaysia; 5) a rather atypical habitat of U. ketua and U. dentipes: a rivulet near Batu Punggul Resort in dense primary forest, Sabah, Malaysia; 6) an another habitat of U. ketua: a shaded stream in primary forest, tributary of the Kuamut River near Kampung Pisang Pisang, Sabah, Malaysia.