Laccobius (Glyptolaccobius) celsus Gentili, 1989

Gentili, Elio, 2006, Revisional notes on the genus Laccobius. I. Subgenus Glyptolaccobius (Coleoptera: Hydrophilidae), Acta Entomologica Musei Nationalis Pragae 46, pp. 57-76 : 63

Laccobius (Glyptolaccobius) celsus Gentili, 1989

( Figs. 12-14 )

Laccobius (Glyptolaccobius) celsus Gentili, 1989: 36 . Laccobius (Glyptolaccobius) celsus: HANSEN (1999) : 130; HEBAUER (2002): 13; GENTILI (2003): 412.

Type locality. Nepal, Mid-Western Region, near Jumla, Chautha – Bhulbhule.

Type material examined. HOLOTYPE: J, 2.4 × 1.6 mm ( NSMT): ‘(W NEPAL) / nr. Jumla / Chautha (2850 m) - / Bhulbhule (3270 m) / 23.IX.1981 / M. Sakai // E. Gentili det. 1988 / Laccobius J / celsus n.sp. // [red label] Holotypus J’. PARATYPE: J ( MSNV): ‘(W. NEPAL) / Neurgar / 2800 m alt. / Jumla Dist. / 28.IX.1981 / M. Tomokuni // [red label] Paratypus J // E. Gentili det. 1988 / Laccobius J / celsus n.sp’.

Additional material examined. NEPAL: MID- WESTERN REGION, KARNALI Prov., Distr. Dolpa, Kagmara Lekh , stream on a steep slope, 3800 m a.s.l., 13.v.1995, A. Weigel leg., 2 ex. ( NHMW) ; Distr. Dolpa, Kagmara Lekh , stream near steep cliff, 3800 m a.s.l., 13.v.1995, A. Weigel leg., 3 JJ 7 ♀♀ ( MSNV, NMEG) .

Differential diagnosis. Laccobius celsus belongs to the group of species with curved hind tibiae and longitudinal rows of punctures on the elytra. The rows are sulciform on the whole elytra and the parameres have swollen apices ( Figs. 12-14 ). The latter two characters distinguish it from all other species of Glyptolaccobius .

Distribution. Nepal (Mid-Western Region, Jumla and Dolpa districts).

Figures

Figs. 1-4. 1-3 – Laccobius pluvialis sp. nov., paratype. 1 – habitus, ventral view; 2 – right wing; 3 – right antenna. 4 – L. incisus Gentili, 1989, paratype, habitus, dorsal view.