Laccobius (Glyptolaccobius) affinis Knisch, 1927

Gentili, Elio, 2006, Revisional notes on the genus Laccobius. I. Subgenus Glyptolaccobius (Coleoptera: Hydrophilidae), Acta Entomologica Musei Nationalis Pragae 46, pp. 57-76 : 61

publication ID

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

DOI

https://doi.org/10.5281/zenodo.5188376

persistent identifier

https://treatment.plazi.org/id/03A0937B-FF8D-FFFB-9456-FDBA787FF981

treatment provided by

Carolina

scientific name

Laccobius (Glyptolaccobius) affinis Knisch, 1927
status

 

Laccobius (Glyptolaccobius) affinis Knisch, 1927 View in CoL

( Figs. 5-7 View Figs )

Laccobius (s. str.) affinis Knisch, 1927: 132 View in CoL .

Laccobius (s. str.) affinis: D’ ORCHYMONT (1928) View in CoL : 140.

Laccobius (Platylaccobius) affinis: GENTILI (1979) View in CoL : 31.

Laccobius (Glyptolaccobius) affinis: GENTILI (1989) View in CoL : 36; GENTILI (1995): 253; HANSEN (1999): 130; HEBAUER (2002): 12.

Type locality. India, Uttar Pradesh, Kumaon, Gori Valley, 2300 m a.s.l.

Type material examined. LECTOTYPE: J, 2.0 × 1.1 mm ( NHML): ‘Gori Valley, Kumaon, India, 7000 ft H.G.C. / Knisch det. 1925 Laccobius s.str. affinis Kn. [handwritten] / Coll. A.Knisch COTYPUS’. PARALECTOTYPES: 6 spec. (3 NHML, 3 ISNB). The three paralectotypes from NHML are mounted on separate cards, with labels as for the lectotype. Two of the three paralectotypes from ISNB (male and female) are mounted on one card, with labels: ‘Coll. R.I.Sc.N.B., Inde, Gori Valley, Kumaon, India, 7000 ft H.G.C. / Knisch det. 1925 Laccobius s.str. affinis Kn. / Coll. A.Knisch COTYPUS’. The last specimen is a male of L. egregius (see under that species).

Following the text of KNISCH (1927): ‘Typus im British Museum, London’ I designated one of the specimens in NHML as a lectotype (GENTILI 1978). The three specimens from ISNB come from the Knisch collection: ‘Sieben Exemplare liegen nur durch Güte des Herrn G. C. Champion vor, von welchen drei freundl. meiner Sammlung überlassen wurden’ [‘There are seven specimens available due to the kindness of Mr. G. C. Champion, three of which were kindly donated for my collection.’] ( KNISCH 1927).

Additional material examined. INDIA: UTTAR PRADESH, Gori Valley, Kumaon 7000′, H. G. Champion leg., 1 J 1 ♀ ( MSNV). NEPAL: Annapurna Mts., Baglung Lekh, ca 18 km W Baglung, upp. Okhle village, 2300 m a.s.l., 13.v.2004, J. Schmidt leg., 1 J 2 ♀♀ ( NHMW); Sankua Sabha Distr., above Pahakhola, 2600-2800 m a.s.l., Quercus semecarpifolia , Rhododendron , 31.v-3.vi.1988, Martens & Schawaller leg., 1 J ( CFHG); Solukhumbu Distr., above Nunthala, 2300-2500 m a.s.l., 13.v.1997, W. Schawaller leg., 1 J ( CFHG).

Material not examined. NEPAL: ‘Prov. GANDAKI, Distr. Kaski, Ghorepani nr. Tatapani, 2800- 2500 m, leg. Wolf 23.4.2000 ( NMEG)’ ( HEBAUER 2002).

Differential diagnosis. Laccobius affinis belongs to species with unordered elytral punctures and curved hind tibiae. It resembles L. egregius and L. incisus by the dark elytral colour without clear spots and stripes. From these species it is chiefly distinguished by its aedeagus ( Figs. 5-7 View Figs ) with simple parameres, i.e. not excised or hooked at apices. Externally, L. affinis differs from the latter two species by the lack of shagreen and black hairs on the head and pronotum, arrowhead-shaped anterior margin of the mesosternal keel, and the parasutural furrow reaching elytral apex.

Distribution. India (Uttar Pradesh), Nepal.

NHML

Natural History Museum, Tripoli

MSNV

Museo Civico di Storia Naturale di Venezia

NHMW

Naturhistorisches Museum, Wien

NMEG

Naturkundesmuseum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Hydrophilidae

Genus

Laccobius

Loc

Laccobius (Glyptolaccobius) affinis Knisch, 1927

Gentili, Elio 2006
2006
Loc

Laccobius (Glyptolaccobius) affinis:

HEBAUER F. 2002: 12
HANSEN M. 1999: 130
GENTILI E. 1995: 253
GENTILI E. 1989: 36
1989
Loc

Laccobius (Platylaccobius) affinis:

GENTILI E. 1979: 31
1979
Loc

Laccobius (s. str.) affinis: D’ ORCHYMONT (1928)

ORCHYMONT A. 1928: 140
1928
Loc

Laccobius (s. str.) affinis

KNISCH A. 1927: 132
1927
Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF