Acizzia

Taylor, Gary S., Halbert, Susan E., Tripathy, Ashirwad & Burckhardt, Daniel, 2023, A new Australian species of invasive psyllid, Acizzia convector Burckhardt & Taylor, sp. nov. (Psylloidea: Psyllidae) associated with Acacia auriculiformis and A. mangium (Fabaceae), Zootaxa 5228 (1), pp. 61-72 : 70

Key to adults of Acizzia species known from the Americas

1 Metabasitarsus with two spurs, one on either side ... 2

- Metabasitarsus with only one (outer) lateral spur ... 3

2 Fore wing with a spotted pattern. Male proctiger bearing an elongate pointed appendage on the rounded posterior lobes....................................................................................... A. convector sp. nov.

- Fore wing pattern not spotted. Male proctiger lacking an elongate pointed appendage on the rounded posterior lobes............................................................................................... A. jamatonica

3 Body length to tip of folded wings less than 1.6 mm. Metatibia lacking genual spine. Male proctiger with apical tubular portion about as long as or shorter than basal portion. Paramere lamellar, without a tooth or other sclerotised structure at midlength................................................................................... A. acaciaebaileyanae

- Body length to tip of folded wings more than 1.9 mm. Metatibia with small genual spine. Male proctiger with apical tubular portion slightly or much longer than basal portion. Paramere with a tooth or other sclerotised structure at midlength...... 4

4 Paramere, in profile, weakly convex along fore margin of apical two thirds; bearing a sclerotised ridge on the inner face in apical quarter. Fore wing pattern sometimes indistinct.............................................. A. uncatoides

- Paramere, in profile, with sclerotised tooth along fore margin in apical quarter or fifth. Fore wing pattern always well contrasted........................................................................................... 5

5 Apex of paramere, in profile, bearing a thumb-like sclerotised process that is pointing up and backwards in an angle of 45° to longitudinal axis of paramere and a small anterior sclerotised tooth that is pointing forwards in a 90° angle. Female subgenital plate, in profile, pointed apically. On Grevillea and Hakea spp. (Proteaceae) ............................... A. hakeae

- Apex of paramere, in profile, bearing an outer digitiform, weakly sclerotised process that is pointing upwards in the axis of paramere and a strongly sclerotised inner tooth that is pointing forwards in a 90° angle. Female subgenital plate, in profile, truncate apically. On Acacia spp. (Fabaceae) ....................................................... A. jucunda