Key to new species of Myotrioza from Eremophylla and Myoporum ( Scrophulariaceae: Myoporeae)

(This key is intended to identify a series containing reliably associated males and females, as determined from multiple specimens with similar appearance from unique date, locality and host data).

1. Fore wing veins R+M+Cu, R and/or R1 pigmented slightly to distinctly darker than other wing veins (see Figs 33–34)...... 2

- Fore wing veins equally pigmented (see Figs 53–54).......................................................... 7

2. Fore wing vein Rs about same length to little shorter (0.90–0.97 times) than vein M (Figs 25–26); female with dorsal medial pale marking on thorax and submedial pale markings on abdomen (Fig. 20); male uniformly brown dorsally with pale ventral abdomen (Fig. 21)................................................................... M. desertorum sp. nov.

- Fore wing vein Rs considerably shorter (0.63–0.87) than vein M (see Figs 33–34).................................. 3

3. Apex of fore wing distinctly pointed; medial cell much shorter than cubital cell (Figs 33–34, 121–122).................. 4

- Apex of fore wing rounded; medial cell about same size as cubital cell (see Figs 148–149)............................ 5

4. Antennae considerably shorter (0.68–0.80 times) than width of head (Figs 31–32); both sexes uniformly brown (Figs 27–28)....................................................................................... M. eremi sp. nov.

- Antennae about same or a little shorter (0.83–1.08 times) than width of head (Figs 119–120); female brown dorsally with pale medial marking on abdomen (Fig. 116); male dark brown to black dorsally (Fig. 115)........... M. markmitchelli sp. nov.

5. Antennal segments 3 and 4 distinctly swollen to bear supernumerary rhinaria (Fig. 137); rhinaria on antennal segment 3 greater than 20; male black dorsally with ventral abdomen pale (Fig. 199); female pale with brown markings (Fig. 200).............................................................................................. M. serrulatae sp. nov.

- Supernumerary rhinaria on antennal segment 3 less than 8..................................................... 6

6. Antennal segments 3 and 4 slightly swollen to bear supernumerary rhinaria (Figs 95–96); 4–7 rhinaria on antennal segment 3, 3–5 on antennal segment 4; male dark brown to black (Fig. 91); female yellow-brown (Fig. 92)........ M. interioris sp. nov.

- Antennal segments 3 and 4 not swollen (Figs 146–147); 2 rhinaria on each of antennal segments 3 and 4; both sexes pale brown with brown markings.............................................................. M. myopori sp. nov.

7. General colour pale yellow brown with abdominal membrane colouration green (Figs 71–72); female terminalia truncate, pale yellow (Figs 43, 90)................................................................................... 8

- General colour yellow brown with brown markings and abdominal membrane colouration pale yellow-brown (Figs 160–161); female terminalia truncate to elongate, yellow-brown with brown markings (Figs 134–135)........................... 9

8. Body size small (BL vertex to apex of folded wings: ♂ less than 2.8 mm, ♀ less than 3.4 mm) (Figs 3–6); on Myoporum platycarpum, inland distribution.......................................................... M. clementsiana sp. nov.

- Body size larger (BL vertex to apex of folded wings: ♂ greater than 3.7 mm, ♀ greater than 4.0 mm) (Figs 71–74); on Myoporum insularis, coastal distribution......................................................... M. insularis sp. nov.

9. Female proctiger with a subterminal field of hooked setae (Figs 138–139)........................................ 10

- Female proctiger without hooked setae (Figs 140–141, 183, 185)............................................... 18

10. Female proctiger with subterminal dense field of sclerotised hooked setae (Figs 139, 182)........................... 11

- Female proctiger with subterminal sparse field of unsclerotised, weakly hooked setae (Figs 138, 184).................. 13

11. Fore wing vein Rs about same length to little shorter (0.86–1.00 times) than vein M (Figs 17–18); female valvula ventralis strongly curved, proctiger short convex with weak terminal hook from lateral aspect (Fig. 44); male aedeagus long, thin, paramere pyriform with narrowly pointed apex (Figs 37–38)................................ M. darwinensis sp. nov.

- Fore wing vein Rs considerably shorter (0.74–0.87) than vein M (Figs 61–62); male and female terminalia otherwise..... 12

12. Female valvula ventralis strongly curved, proctiger short with flat posterior margin with pointed terminal apex from lateral aspect (Fig. 88); male aedeagus long, thin, paramere triangular with sharply pointed apex (Figs 81–82)..................................................................................................... M. flindersiana sp. nov.

- Female valvula ventralis weakly curved, proctiger short convex with pointed terminal apex from lateral aspect (Fig. 222); male aedeagus short, paramere pyriform with broadly rounded apex (Figs 217–218)................... M. telowiensis sp. nov.

13. Hind tibia short (TL: ♂ less than 0.32 mm, ♀ less than 0.36 mm); female proctiger with high profile from lateral aspect (Figs 89, 134, 184)........................................................................................ 14

- Hind tibia long (TL: ♂ greater than 0.35 mm, ♀ greater than 0.35 mm); female proctiger with low profile from lateral aspect (Figs 87, 135, 220)................................................................................... 16

14. Posterior margin of female proctiger flat from lateral aspect, without upturned apical hook (Fig. 134); male proctiger with dorsal lobe, paramere pyriform with pointed apex (Figs 127–128)................................ M. interstantis sp. nov.

- Posterior margin of female proctiger with rounded subterminal expansion from lateral aspect, with upturned apical process; ventral margin of subgenital plate straight; male proctiger with dorsal lobe, paramere triangular with pointed apex....... 15

15. Upturned apical process of female proctiger short, arising close to rounded subterminal expansion (Fig. 89); habitus small (BL vertex to apex of folded wings: ♂ less than 2.2 mm, ♀ less than 2.7 mm) (Figs 63–66); on Eremophila scoparia, inland SA................................................................................... M. gawlerensis sp. nov.

- Upturned apical process of female proctiger longer, arising further from rounded subterminal expansion (Fig. 184); habitus larger (BL vertex to apex of folded wings: ♂ greater than 2.3 mm, ♀ greater than 2.8 mm) (Figs 158–161); on Eremophila pantonii, inland WA...................................................................... M. pantonii sp. nov.

16. Female proctiger short, evenly rounded from lateral aspect, valvula ventralis weakly curved (Figs 135, 138); male proctiger conoid, paramere pyriform with curved setae on posterior margin (Figs 129–130)................. M. longifoliae sp. nov.

- Posterior margin of female proctiger relatively flat from lateral aspect with rounded subterminal expansion and pointed apex (Figs 87, 219)...................................................................................... 17

17. Female subgenital plate with concave ventral margin from lateral aspect, distinctly pointed, valvula ventralis weakly curved (Fig. 87); male proctiger conoid, paramere pyriform with broadly rounded apex (Figs 79–80)....... M. eremophili sp. nov.

- Female subgenital plate with convex ventral margin from lateral aspect, valvula ventralis evenly curved, bow-shaped (Fig. 219); male terminalia similar to Figs 213–214 ................................................. M. remota sp. nov.

18. Female proctiger short, evenly rounded from lateral aspect, valvula ventralis weakly curved (Fig. 185); male proctiger conoid, paramere broadly pyriform (Figs 180–181)................................................ M. platycarpi sp. nov.

- Female proctiger elongate with prominent subapical lobe, valvula ventralis evenly curved, bow-shaped (Figs 140, 183, 220); male proctiger with lateral lobes distinctly triangular in lateral profile with a row of long setae on dorsal margin, paramere elongate, aedeagus extremely long, thin (Figs 176–177, 213–214).............................................. 19

19. Subapical lobe of female proctiger distinctly overhanging apex, apices of proctiger and subgenital plate heavily sclerotised, acicular (Figs 140, 183); male paramere elongate with prominent subapical lobe on anterior margin (Figs 176–177)......................................................................................... M. oppositifoliae sp. nov.

- Subapical lobe of female proctiger barely overhanging apex, apices of proctiger and subgenital plate weakly sclerotised, pointed (Fig. 220); male paramere elongate, thin with pointed apex (Figs 213–214)................ M. scopariae sp. nov.