Swezeyana rubra, Percy, Diana M., 2018

Percy, Diana M., 2018, Revision of the Hawaiian psyllid genus Swezeyana, with descriptions of seven new species (Hemiptera, Psylloidea, Triozidae), ZooKeys 758, pp. 75-113 : 75

Swezeyana rubra sp. n. Figures 1I, 8

Diagnosis.

Medium small, red-brown species, with fore wing membrane distinctly patterned, antennae and genal processes relatively short, paramere short, and female proctiger strongly convex apically.

Description.

Adult. General body colour red or red-brown, last 2-3 antennal segments darker brown. Fore wing distinctly patterned with irregular clouds of red pigmentation, mottled red-brown pattern in apical 2/3 of fore wing, with basal portion either clear (males) or slightly mottled (females), males have a darker almost solid red-brown area of pigmentation across middle of wing membrane, wing veins variably brown to speckled brown with darker brown patches indicating position of cross pseudoveins, intersections of veins and wing margin, as well as two brown patches on the dorsal claval wing margin, and on vein R+M+Cu1 just basal to vein trifurcation, there are distinctly unpigmented areas surrounding marginal clusters of radular spines (Fig. 1I). Fore wing apex bluntly acute, shape shorter and broader than other Swezeyana (WL:WW <3.10); pseudopterostigma long (Fig. 8V), 5-7 cross pseudoveins in cell r1 (Fig. 8W); surface spinules densely distributed in all cells, but cell c+sc often 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 short (ratio AL:HW 0.93-1.03) (Fig. 8 C–D); genal processes relatively short (GP <0.35 mm, ratio HW:GP> 1.65) and not or slightly upturned at apices (Fig. 8 A–C); medium short to short setae on vertex and thorax. Meracanthus small (Fig. 8G), genual spine reduced or absent (Fig. 8J). Male terminalia (Fig. 8 R–T): paramere short (ratio PL:HW <0.25), tapering to slightly anteriorly projecting apex with two short stout setae; distal aedeagus segment short relative to paramere (ratio PL:AEL <1.10), apex developed into a large rounded hook with acute apex. Female terminalia (Fig. 8 L–Q): proctiger dorsal surface strongly convex apically, apex broad, blunt, bearing medial cleft and fringed with stout setae, anal ring medium long (ratio FP:RL 1.71-2.19), with reduced head compartment at proximal end, distal portion of ring margin smooth; subgenital plate slightly convex with little or no medial cleft but with beak and membrane extended (Fig. 8 P–Q).

Egg. Pale with loosely structured hexagonal sculpturing dorsally (Fig. 8U).

Immature. Unknown.

Host plant.

Planchonella sandwicensis .

Distribution.

Hawaii. Only known from PuuWaaWaa area.

Etymology.

Named for the generally red body colouration (adjective in the nominative singular).

Comments.

This species was collected from the same individual host tree as S. hawaiiensis (see comments for S. hawaiiensis ).

Material examined.

Holotype male (slide mounted), PuuWaaWaa, Hawaii, USA, N19.784, W-155.833, 820m, ex Planchonella sandwicensis , 29 July 2002, “440B-02” D. Percy leg. (BMNH). Paratypes (slide mounted) 2f, as for holotype (BMNH). Other material: 2m 8f, PuuWaaWaa Forest Reserve, Hawaii, USA, 2600 ft, ex Planchonella sandwicensis , 23 February 2011, “JG5B” J. Giffin leg. (BMNH).

Gene sequences.

MH001523 (COI) MH001529 (cytB) (JG5B); MG988834 (COI) MG989156 (cytB) (440B-02).