Pariaconus lehua (Crawford, 1925) Crawford, 1925

Percy, Diana M., 2017, Making the most of your host: the Metrosideros-feeding psyllids (Hemiptera, Psylloidea) of the Hawaiian Islands, ZooKeys 649, pp. 1-163 : 59-60

Pariaconus lehua (Crawford, 1925) comb. n. Figure 27

Trioza lehua Crawford, 1925: 29

Adult colour.

General body colour yellow or orange. Fore wing membrane clear.

Adult structure.

Fore wing apex rounded; surface spinules distributed in all cells; short setae on margins and veins (Fig. 27A). Antennae short (length av. 0.81; ratio AL:HW av. 1.62); genal processes short (ratio VL:GP av. 2.30) and rounded apically; medium short setae on vertex and short setae on thorax; distal proboscis segment short (av. length 0.08); hind tibia slender, length subequal to head width (ratio HW:HT av. 1.02) (Fig. 27 B–C, F–G). Male terminalia (Fig. 27 D–E): paramere slightly shorter than proctiger (ratio MP:PL av. 1.08), broad and parallel-sided before tapering to a somewhat flat-topped apex with anteriorly directed hook; distal aedeagus segment length subequal to paramere (ratio PL:AEL av. 1.04) with base slightly angular and inflated, and a large hooked apex (ratio AEL:AELH av. 2.30). Female terminalia (Fig. 27 H–I): proctiger dorsal surface more or less straight, apex bluntly acute, anal ring long (ratio FP:RL av. 3.50); subgenital plate with slight medial bulge ventrally, and acute apex; ovipositor apex with reduced serrations (2 above, 2 below), valvulae dorsalis not strongly convex dorsally.

Egg.

Unpigmented, not sinusoidal, smooth, no microsculpturing, short pedicel 1/4 length from base, tail lacking.

Immature.

Unknown (see comment under Pariaconus crassiorcalix ).

Host plant notes.

Unknown.

Island.

Kauai

Distribution notes.

The type location is recorded only as “Nualolo”.

Biology.

The biology of this species is unknown, it may form cup galls on stems as morphologically it is close to the two stem cup-gallers, Pariaconus caulicalix and Pariaconus crassiorcalix .

Type material.

Holotype, male (?) (dry mounted, damaged, abdomen and fore wings missing, BPBM). See Table 2 for details of type and other material examined for this study.