Laccobius (Glyptolaccobius) incisus 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 : 65

publication ID

https://doi.org/ 10.5281/zenodo.5176694

persistent identifier

https://treatment.plazi.org/id/03A0937B-FF81-FFF7-9454-FE7D787FFBB7

treatment provided by

Carolina (2021-08-10 14:00:24, last updated by Plazi 2023-11-03 21:35:53)

scientific name

Laccobius (Glyptolaccobius) incisus Gentili, 1989
status

 

Laccobius (Glyptolaccobius) incisus Gentili, 1989 View in CoL

( Figs. 4, 17-19 View Figs View Figs )

Laccobius (Glyptolaccobius) incisus Gentili, 1989: 36 View in CoL . Laccobius (Glyptolaccobius) incisus: HANSEN (1999) View in CoL : 130; HEBAUER (2002): 16.

Type locality. Nepal, Solukhumbu, Monjo, 2800 m a.s.l.

Type material examined. HOLOTYPE: J, 1.9 × 1.2 mm ( NSMT): ‘ Monjo , 2800 m / Solukhumbu, NEPAL / Sept. 30, 1979 / M. Sato leg. // [red label] Holotypus / E. Gentili’. PARATYPES: 11 JJ 10 ♀♀ ( NSMT, MSNV), same data as holotype.

Material not examined. NEPAL: ‘Annapurna Mts. N of Pokhara, small river near Siklis 2200 m, 24.04.1996, leg. O. Jäger ( MTDG)’. INDIA: ‘ UTTAR PRADESH, C. Almora, Dhabari ( NHML)’ (all data after HEBAUER 2002).

Differential diagnosis. Laccobius incisus belongs to the group of species with unordered elytral punctures and curved hind tibiae. Within this group it resembles L. affinis and L. egregius by the dark elytral colour without clear spots and stripes. It is chiefly distinguishable from these two species by the shape of the aedeagus ( Figs. 17-19 View Figs View Figs ), with inner margin of the parameres hooked before the apex. Externally, it differs from these species by the lack of shagreen and black hairs on head and pronotum and by the parasutural furrow reaching elytral apex.

Distribution. India (Uttar Pradesh), Nepal.

GENTILI E. 1989: Alcune novita sul genere Laccobius (Coleoptera, Hydrophilidae). Annuario Osservatorio di Fisica Terrestre e Museo Antonio Stoppani del Seminario Arcivescovile di Milano (n. s.) 10 (1987): 31 - 39.

HANSEN M. 1999: Hydrophiloidea (Coleoptera). In HANSEN M. (ed.): World Catalogue of Insects, Vol. 2. Apollo Books, Stenstrup, 416 pp.

HEBAUER F. 2002: Hydrophilidae of Northern India and Southern Himalaya (Coleoptera: Hydrophilidae). Acta Coleopterologica 18: 3 - 72.

Gallery Image

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.

Gallery Image

Figs. 5-11. 5-7 – Laccobius affinis Knisch, 1927, aedeagus. 5 – paralectotype, dorsal view; 6 – lectotype, lateral view; 7 – lectotype, ventral view. 8-11 – L. egregius Gentili, 1995, holotype. 8 – aedeagus, dorsal view; 9 – ditto, lateral view; 10 – ditto, ventral view; 11 – genital segment.

NSMT

National Science Museum (Natural History)

MSNV

Museo Civico di Storia Naturale di Venezia

NHML

Natural History Museum, Tripoli

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Hydrophilidae

Genus

Laccobius