Amarodytes soekhnandanae (Makhan, 1994) Makhan, 1994

Miller, Kelly B., 2016, Revision of the Neotropical diving beetle genus Hydrodessus J. Balfour-Browne, 1953 (Coleoptera, Dytiscidae, Hydroporinae, Bidessini), ZooKeys 580, pp. 45-124 : 115-116

Taxon classification Animalia Coleoptera Dytiscidae

Amarodytes soekhnandanae (Makhan, 1994) comb. n.

Hydrodessus soekhnandanae Makhan, 1994: 117; Nilsson 2001: 236.

Type locality.

Suriname, Brokopondo District, Brownsweg.

Discussion.

This species was described by Makhan (1994) from a series from Suriname. Based on examination of the holotype, the species clearly does not belong to Hydrodessus since specimens have a distinctive pair of basal pronotal striae. As described by Makhan (1994), specimens have the pronotum with the “… base with two strongly incurvate plicae," which are present in no other Hydrodessus . In fact, absence of these striae, or plicae, is one of the primary diagnostic features for the genus ( Balfour-Browne 1953; Biström 1988; Young 1967; 1970), an important detail seemingly overlooked by Makhan (1994). Presence of these curved striae with simultaneous absence of basal elytral striae along with the coloration, lack of modified anterior clypeal margins, and other features, strongly suggest the species belongs to Amarodytes Régimbart, and it is transferred to that genus here (comb. n.). Amarodytes has not been revised, and there are numerous described species. It is possible the species is a junior synonym of another Amarodytes species.

Type specimen.

Holotype: ♂ in RMNH labeled, "Suriname District Brokopondo Brownsweg 7.8.1984 leg. D.Makhan/ Hydrodessus soekhnandanae det. D. Makhan 1994 / Holotype [red label]."