Key to Leeuwenia species from Australia 1. Tube no more than 1.5 times as long as head................................................................ 2 -. Tube at least 2.0 times as long as head..................................................................... 4 2. Tergite IX with setae S1 and S2 unusually elongate, between 2.0 and 3.0 times as long as basal width of tube (Fig. 12)................................................................................................ aliceae sp.n. -. Tergite IX setae S1 and S2 shorter, less than 1.5 times as long as basal width of tube................................ 3 3. Fore tarsus with prominent lateral tooth in both sexes.................................................. polyosmae -. Fore tarsus without a prominent lateral tooth........................................................... diospyri 4. Antennal segment III at least 3.5 times as long as maximum width; prosternal basantra absent........................ 5 -. Antennal segment III less than 3.0 times as long as maximum width (Fig. 16); prosternal basantra present (Fig. 20) but sometimes weakly sclerotised (Fig. 19)........................................................................ 6 5. All femora and tibiae clear yellow; head about 1.6 times as long as width across eyes; antennal segment III less than 4.0 times as long as maximum width; tube less than 9 times as long as basal width................................ tetrastigmae -. Mid and hind femora as brown as body, mid and hind tibiae yellow but brown at base; head 2.0 times as long as width across eyes; antennal segment III at least 5.0 times as long as maximum width; tube at least 13 times as long as basal width.................................................................................................. convergens 6. Pelta wider than long (Fig. 21); prosternal basantra well developed with several setae (Fig. 20); metanotum with several pairs of setae anterior to median pair; tergal wing-retaining setae slender and pointed............................. scolopiae -. Pelta longer than basal width (Figs 17, 18); prosternal basantra weak and without setae (Fig. 19); metanotum without scattered setae anterior to major median setae; tergal wing-retaining setae broadly flattened.................................. 7 7. Bicoloured (Fig. 2), head yellow medially, pronotum and abdominal segments II‒VII largely yellow; mid and hind legs with femora brown but tibiae yellow; pronotum posterior fifth weakly reticulate (Fig. 7); male with large circular pore plate on sternite VIII............................................................................... cameroni sp.n. -. Head, thorax and abdomen uniformly light brown, head with small pale area antero-medially (Fig. 3); mid and hind legs with femora and tibiae brown; pronotum posterior fifth finely tuberculate (Fig. 8); male with pore plate extending almost fully across sternite VIII............................................................................... irukandji sp.n.

Published as part of Mound, Laurence A. & Tree, Desley J., 2021, Structural variation among species of Leeuwenia (Thysanoptera, Phlaeothripinae) with three new species from Australia, pp. 439-447 in Zootaxa 4903 (3) on page 441, DOI: 10.11646/zootaxa.4903.3.9, http://zenodo.org/record/4428082