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Medium sized, light coloured species, with fore wing membrane unpatterned, antennae medium long, genal processes long, paramere medium long, and female proctiger strongly convex apically.
Adult. General body colour green to yellow-green or yellow-brown, last 5-7 antennal segments darker brown, apices of genae sometimes pinkish-red. Fore wing membrane uniformly pale fuscous (Fig. 1B). Fore wing apex acute; pseudopterostigma medium to long (Fig. 7R), no cross pseudoveins in cell r1; surface spinules sparsely distributed, reduced or absent from r1 and r2, and apparently absent from c+sc which is partly to almost entirely composed of a thickened ventral wing margin (C+Sc); medium long setae on ventral margin and medium short to short setae on veins and dorsal margin. Antennae medium long (ratio AL:HW 1.39–1.53) (Fig. 7B, D); genal processes medium long (GP ≥ 0.35 mm, ratio HW:GP ≥ 1.40) and often upturned at apices (Fig. 7A–B, G); short to medium short setae on vertex and thorax. Meracanthus small (Fig. 7E), genual spine reduced or absent (Fig. 7E). Male terminalia (Fig. 7M–Q): paramere slender, medium long (ratio PL:HW ≥ 0.25), tapering to anteriorly projecting apex with two short stout setae; distal aedeagus segment short relative to paramere (ratio PL:AEL 1.19–1.60), apex developed into a large rounded hook with bluntly acute apex. Female terminalia (Figs 7H–L): proctiger dorsal surface strongly convex apically, apex broad, blunt, bearing medial cleft and fringed with stout setae, anal ring medium long (ratio FP:RL 1.90–2.05), with reduced head compartment at proximal end, distal portion of ring margin smooth; subgenital plate slightly convex with short medial cleft with beak and membrane extended (Fig. 7K–L). Egg. Unknown.
Oahu. Only known from the Waianae Mountains.
Named for its distribution on the island of Oahu (adjective in the nominative singular).
Holotype male (slide mounted), Mnt Kaala road (culvert 32), Waianae Mnts, Oahu, USA, ex Planchonella sandwicensis, 26 August 2003, “Hi57-03” D. Percy leg. (BMNH). Paratypes (slide mounted) 2f, as for holotype (BMNH). Paratypes (slide mounted) 2m, Pahole NAR, Waianaea Mnts, Oahu, USA, N21.5364, W-158.1919, ex Planchonella sandwicensis, 14 August 2003, “Hi06-03” D. Percy leg. (BMNH). Other material: 1m 2f, South Mohiakea, Central Waianae Mnts, Oahu, USA, N21.4821, W-158.1247, ex Planchonella sandwicensis, 29 January 2014, “KM16-14” K. Magnacca leg. (BMNH).
Gene sequences. KY294142 (COI) KY294626 (cytB) (KM16-14) [previously submitted to GenBank as Swezeyana elongagena Caldwell, 1940 (in Percy 2017a)]; KY294143 (COI) KY294627 (cytB) (Hi57-03) [previously submitted to GenBank as Swezeyana elongagena Caldwell, 1940 (in Percy 2017a)].
- Percy, D; 2018: Revision of the Hawaiian psyllid genus Swezeyana, with descriptions of seven new species (Hemiptera, Psylloidea, Triozidae) ZooKeys, (758): 75-113. doi