Laccotrephes longicaudatus Nieser, Zettel & Chen, 2009
publication ID |
https://doi.org/ 10.5281/zenodo.5351508 |
persistent identifier |
https://treatment.plazi.org/id/03C6879C-1022-730C-FF73-FE46DCA4AC1F |
treatment provided by |
Tatiana |
scientific name |
Laccotrephes longicaudatus Nieser, Zettel & Chen, 2009 |
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Laccotrephes longicaudatus Nieser, Zettel & Chen, 2009 View in CoL
( Figs. 34 View Figs , 35 View Figs )
Laccotrephes longicaudatus Nieser, Zettel & Chen, 2009: 17 View in CoL
Material examined. — MALAYSIA, Selangor: 1 female, rice field ditch, 15 May 1991, coll. Jeffrey and Karprill ( ZRC) . Malacca: 1 male, Bukit Selankor , 25 Jul.1962, coll. L. Cheng ( JTPC) ; 1 male, Rd. 1 mile near Jasin, 4 Nov.1959 ( ZRC) ; 1 female, Bukit Sabukor Road , 6 Apr.1960, coll. unk. ( ZRC) . Terengganu: 1 male, pool at Km. 94 on road from Kuala Terengganu to Kota Bahru , south of Jerteh , 5°32'38.5"N, 102°43'43.9"E, water temp. 26°C., pH 6.7, 19 Mar.1992, coll. H. K. Lua ( ZRC) GoogleMaps ; 1 male, 1 female, Marang , 30 Dec.1994, W. G. Ullrich coll. ( USNM) . Johor: 1 female, at about 300 m . S. of 174 Km, marker on Johor Bahru–Kuantan road ( Sungai Triang Besar ), N. of Mersing , 19 Oct.1991, coll. P. K. L. Ng et al. ( ZRC) ; 1 male, 1 female, 2 immatures, Mawai, Gunung Panti foothills, 2 Dec.1998, coll. H. K. Lua, LHK420 ( ZRC) . Kedah: 1 female, Alor Star , 5 Dec.1955, coll. D. S. Johnson ( ZRC) .
Extralimital material examined. — VIETNAM, Hoa Binh Prov.: 2 males, Hoa Binh, J. De Cooman coll. ( MNHN) .
Diagnosis. — Male body length 16.0–17.0 mm; maximum width (across hemelytra) 4.0–4.5 mm, length of respiratory siphon 22.0–22.5 mm. Female body length 19.0 mm; maximum width (across hemelytra) 5.0 mm, length of respiratory siphon 26.0 mm. Colouration dark brown dorsally, forelegs uniformly dark brown with femur and tibia lacking annulations, middle and hind femora and tibiae yellowish brown mottled with darker brown, venter medium brown. Antennal segment III very slightly shorter than segment II, outer margin bearing numerous long setae, the lengths of these setae 1.5× the width of the segment, inner margin bearing scattered shorter setae, lengths of these setae about two-thirds as long as the width of the segment. Prosternal keel with an angular projection anteriorly ( Fig. 34 View Figs ). Length of respiratory siphon 1.5× longer than the length of the body. Male paramere with a slender, downward-curving apical process ( Fig. 35 View Figs ).
Distribution. — Originally described from Vietnam, and not previously recorded outside of that country. The records provided below are the first for Peninsular Malaysia, and include specimens from Johor, Malacca, Terengganu, Selangor, and Kedah.
Discussion. — A small species, similar in body size to L. simulatus but easily separated by the long respiratory siphon which is 1.5× the length of the body, by the presence of an angulate projection at the anterior margin of the prosternal keel when viewed laterally (compare Figs. 33, 34 View Figs ), and by the very distinctive shape of the male paramere (compare Figs. 35, 36 View Figs ). Previous records of Laccotrephes maculatus from Singapore and Peninsular Malaysia (Fernando & Cheng, 1974) are in fact referable to this species, or to L. simulatus .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Laccotrephes longicaudatus Nieser, Zettel & Chen, 2009
Polhemus, Dan A. & Polhemus, John T. 2013 |
Laccotrephes longicaudatus
Nieser, Zettel & Chen 2009: 17 |