Amphicnemis gracilis Krüger, 1898

Dow, Rory A., Choong, Chee Yen & Ng, Yong Foo, 2010, A review of the genus Amphicnemis in Peninsular Malaysia and Singapore, with descriptions of two new species (Odonata: Zygoptera: Coenagrionidae), Zootaxa 2605, pp. 45-55 : 50-51

publication ID	https://doi.org/ 10.5281/zenodo.197652
DOI	https://doi.org/10.5281/zenodo.3510964
persistent identifier	https://treatment.plazi.org/id/9A1C8796-C736-EF78-3F96-FBDDFD71F175
treatment provided by	Plazi
scientific name	Amphicnemis gracilis Krüger, 1898
status

Treatment

Amphicnemis gracilis Krüger, 1898 View in CoL

( Figs. 5 View FIGURES 3 – 6 , 8 View FIGURES 7 – 8 , 11 View FIGURES 9 – 14 , 20 View FIGURES 18 – 21 , 24 View FIGURES 22 – 25 )

Amphicnemis gracilis Krüger 1898: 121 View in CoL –123 (original description, Sumatra); — Laidlaw 1913: 74 (brief characterisation); — Lieftinck 1935: 10 View Cited Treatment (records from Sumatra); — Lieftinck 1940: 365 View Cited Treatment (♂ key), 367 (Ψ key), 372– 373 (discussion), pl. 15, fig. 4, (♂, Ψ prothorax), pl. 16, fig. 2 (♂ appendages); — Lieftinck 1954: 66 (distribution); — van Tol 1992: 114 (index to references to this species in Lieftinck’s publications); — Murphy 1997: 338, 341– 342 ( Singapore); — Hämäläinen 2000: 54 (Pahang); — Orr 2005: 9, 41 (brief description and illustration of ♂); — Kitagawa & Katatani 2007: 30 (Johor); — Norma-Rashid et al. 2008: 4, 14 ( Singapore).

Material. Indonesia, east Sumatra (all in RMNH): 6 ɗɗ, 18 ΨΨ, Palembang, 14–24 xi 1937, leg. L. Coomans de Ruiter; ɗ, Ψ, same area, 14–XI–1937, leg. J.J. van der Starre; Ψ, same area, 1 iv 1938, collectors name illegible; ɗ, Riouw Residency, Inderagiri, 4 iv 1939, leg. P. Buwaldi. Malaysia (in RMNH unless otherwise noted): 3 ɗɗ, 3 ΨΨ, Johor, Panti Forest Reserve, swamp forest, 5 viii 2006, leg. C.Y. Choong, coll. Choong; ɗ, 7 ΨΨ, Pahang, Krau Wildlife Reserve, Kuala Lompok, 22–27 xi 1996, leg. M. Hämäläinen & H. Olsvik; Ψ, same location, 40 m, 28–30 xi 1998, leg. M. Hämäläinen; Ψ, Pahang, 65 km south-west of Kuantan, southern part of Lake Chini, at small forest stream, 16 vii 2002, leg. V.J. Kalkman; Ψ, same data but 18 vii 2002; 7 ɗɗ, 2 ΨΨ, Malaysia, Pahang, Sg Bebar , highly disturbed swamp forest, 20 ix 2009, leg. R.A. Dow, coll. Dow (one in ethanol in RMNH); 2 ɗɗ, 2 ΨΨ, same area, 21 ix 2009, leg. R.A. Dow, coll. Dow; 2 ΨΨ, same area and date, leg. C.Y. Choong, coll. Choong; 3 ɗɗ, 1 Ψ, Perak, Pangkor Island, swamp forest, 7 v 2009, leg. C.Y.

Choong, coll. Choong; Ψ, Perak, Hutan Simpan [Forest Reserve], stream 9.9 km south of Redang Panjang, 200 m, 19 vii 1997, leg. T. Donnelly.

Remarks. Males from Sumatra have the end of the upper branch of the cercus slightly more slender as seen in lateral view, and more deeply excavated interiorly, compared with those from Peninsular Malaysia. Both sexes are slightly smaller in Peninsular Malaysia than Sumatran examples. The genital valves of A. gracilis are similar to those of A. bebar ( Fig. 15 View FIGURES 15 – 17 ).