Laccobius (s. str.) affinis Knisch, 1927: 132
Laccobius (s. str.) affinis : D’ ORCHYMONT (1928) : 140
Laccobius ( Platylaccobius ) affinis : GENTILI (1979) : 31
Laccobius ( Glyptolaccobius ) affinis : GENTILI (1989) : 36
GENTILI (1995) : 253
HANSEN (1999) : 130
HEBAUER (2002) : 12
Revisional notes on the genus Laccobius. I. Subgenus Glyptolaccobius (Coleoptera: Hydrophilidae)
Gentili, Elio
Acta Entomologica Musei Nationalis Pragae
2006
2006-11-06
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57
76
3RLKS
Knisch, 1927
Knisch
1927
[367,911,571,596]
Insecta
Hydrophilidae
Laccobius
Animalia
Coleoptera
4
61
Arthropoda
species
affinis
Glyptolaccobius
( Figs. 5-7)
Laccobius(s. str.) affinis Knisch, 1927: 132. Laccobius(s. str.) affinis: D’ ORCHYMONT (1928): 140. Laccobius( Platylaccobius) affinis: GENTILI (1979): 31. Laccobius( Glyptolaccobius) affinis: GENTILI (1989): 36; GENTILI (1995): 253; HANSEN (1999): 130; HEBAUER (2002): 12.
Typelocality. India, Uttar Pradesh, Kumaon, Gori Valley, 2300 ma.s.l. Type material examined. LECTOTYPE: J, 2.0 × 1.1 mm( NHML): ‘Gori Valley, Kumaon, India, 7000 ftH.G.C. / Knisch det. 1925 Laccobius s.str. affinis Kn.[handwritten] / Coll. A.Knisch COTYPUS’. PARALECTOTYPES: 6 spec.(3 NHML, 3 ISNB). The three paralectotypesfrom NHML are mounted on separate cards, with labels as for the lectotype. Two of the three paralectotypesfrom ISNB (male and female) are mounted on one card, with labels: ‘Coll. R.I.Sc.N.B., Inde, Gori Valley, Kumaon, India, 7000 ftH.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 specimensfrom 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 specimensavailable 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 kmW Baglung, upp. Okhle village, 2300 ma.s.l., 13.v.2004, J. Schmidt leg., 1 J 2 ♀♀( NHMW); Sankua Sabha Distr., above Pahakhola, 2600-2800 ma.s.l., Quercus semecarpifolia, Rhododendron, 31.v-3.vi.1988, Martens & Schawaller leg., 1 J ( CFHG); Solukhumbu Distr., above Nunthala, 2300-2500 ma.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 affinisbelongs to species with unordered elytral punctures and curved hind tibiae. It resembles L. egregiusand L. incisusby the dark elytral colour without clear spots and stripes. From these species it is chiefly distinguished by its aedeagus ( Figs. 5-7) with simple parameres, i.e. not excised or hooked at apices. Externally, L. affinisdiffers 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.