Phaulothrips

Mound, Laurence A. & Tree, Desley J., 2013, Australian spore-feeding thrips of the genus Phaulothrips (Thysanoptera, Idolothripinae), Zootaxa 3608 (4), pp. 239-252 : 242

Key to Australian species of Phaulothrips

1. Antennal segment III less than 200 microns long ( Fig. 1 )...................................................... 2

-. Antennal segment III more than 220 microns long ( Fig. 2 )..................................................... 3

2. Antennal segment III length 120–140 microns ( Fig. 1 ); tube shorter than head, tube/head ratio about 0.9........... barretti

-. Antennal segment III length about 180 microns; tube longer than head, tube/head ratio about 1.3................. caudatus

3. Pelta with no lateral lobes ( Figs 5–7 )...................................................................... 4

-. Pelta with distinct, but sometimes small, lateral lobes ( Figs 11–14 ).............................................. 5

4. Pelta occupying no more than two-thirds of anterior margin of tergite II, maximum width less than four times median length ( Figs 5–6 )....................................................................................... anici

-. Pelta occupying almost the entire anterior margin of tergite II, maximum width more than four times median length ( Fig. 7 )............................................................................................ kranzae sp n.

5. Body bicoloured, thorax, abdominal segment I, antennal segments III–IV, and tarsi yellow ( Fig. 26 ); tergites each with two pairs of wing-retaining setae (cf Fig. 8 ) uptoni

-. Body and legs dark brown; tergites usually with anterior pair of sigmoid wing-retaining setae vestigial.................. 6

6. Lateral lobes of pelta very short, one-eighth of width of this sclerite ( Fig. 14 ); fore wing, when present, with no duplicated cilia............................................................................................... sibylla

-. Lateral lobes of pelta long, one fifth of width of sclerite ( Figs 8–10 ); fore wing, when present, with duplicated cilia present.... 7

7. Anterior margin of head with pair of prominent rounded tubercles, each bearing about 10 dark setae with translucent apices ( Fig. 16 )..................................................................................... inquilinus

-. Anterior margin of head sometimes with small tubercles, but these bear no more than three pairs of setae ( Figs 17–19 )..... 8

8. Anterior margin of head with pair of small pointed tubercles each bearing three stout translucent setae about as long as anten- nal segment I ( Fig. 17 ); pelta lateral lobes bearing one pair of setae..................................... kingae sp.n.

-. Anterior margin of head with no more than two pairs of pre-ocellar setae ( Figs 18–19 ); pelta lateral lobes with or without setae.................................................................................................... 9

9. Head with two pairs of short pre-ocellar setae ( Fig. 19 ), neither setal pair longer than antennal segment I; pelta with pair of prominent setae on lateral lobes; tergites II–VII with median setae at least 0.5 as long as each tergite ( Fig. 9 )... whyallae sp.n.

-. Head with one pair of prominent pre-ocellar setae ( Figs 15, 18 ), if more than one pair then one pair is longer than antennal seg- ment I; pelta lobes usually without setae; median pair of tergal setae not elongate.................................. 10

10. Head with mid-dorsal pair of setae present; prosternal ferna bluntly pointed medially in females ( Fig. 32 )...... oakeyi s p.n.

-. Head without a pair of major mid-dorsal setae; prosternal ferna usually with median margins parallel ( Figs 30, 31, 33 ).... 11

11. Tube of female with margins convex, no longer than 0.75 as long as head ( Figs 27–28 ); pre-ocellar setae on head colourless, apical half broad and flat ( Fig. 20 )................................................................... vuilleti

-. Tube of female with margins straight, but constricted at apex ( Fig. 29 ), at least 0.8 as long as head; pre-ocellar setae pale or shaded, never colourless with flattened apices.............................................................. 12

12. Tube at least 1.1 times as long as the head................................................................. 13

-. Tube less than 0.9 as long as the head..................................................................... 15

13. Tergites with more than one pair of wing-retaining setae; all 3 pairs of major setae on head dark, long, slender and sharply acute ( Fig. 8 ).................................................................................... agrestis

-. Tergites with only one pair of wing-retaining setae; major setae on head pale or weakly shaded....................... 14

14. Pelta with pair of setae on lateral lobes ( Fig. 10 ); tube 1.3–1.5 as long as head; pre-ocellar setae extend to apex of antennal seg- ment II.................................................................................. daguilaris sp.n.

-. Pelta without setae on lateral lobes ( Fig. 11 ); tube no more than 1.2 as long as the head; pre-ocellar setae extend to apex of antennal segment I........................................................................... flindersi sp.n.

15. Pre-ocellar setae weakly shaded and slender; tube of female at least 0.85 of head length..................... longitubus

-. Pre-ocellar setae colourless and stouter; tube of female no more than 0.8 of head.............................. fuscus

Figures

FIGURES 1 – 10. Australian species of Phaulothrips. (1) barretti, antenna; (2) whyallae, antennal segments I – V; (3) daguilaris, antennal segments V – VIII; (4) flindersi, antennal segments V – VIII; (5) anici, pelta of macroptera; (6) anici, pelta of microptera; (7) kranzae, meso & metanotum, pelta & tergite II; (8) agrestis, pelta & tergite II; (9) whyallae, pelta & tergite II; (10) daguilaris, pelta.

FIGURES 11 – 20. Australian species of Phaulothrips. (11) flindersi, pelta; (12) inquilinus, pelta; (13) oakeyi, pelta; (14) sibylla, pelta; (15) agrestis, head; (16) inquilinus, pre-ocellar tubercles; (17) kingae, pre-ocellar tubercles; (18) kranzae, preocellar tubercles; (19) whyallae, pre-ocellar tubercles; (20) vuilleti, pre-ocellar seta;

FIGURES 21 – 29. Australian species (females) of Phaulothrips. (21) daguilaris; (22) fuscus; (23) inquilinus; (24) kranzae; (25) oakeyi; (26) uptoni; (27) vuilleti; (28) vuilleti, tube; (29) daguilaris, tube.

FIGURES 30 – 35. Australian species of Phaulothrips. Prosternal basantra, ferna and mesopraesternum 30 – 33: (30) daguilaris, (31) flindersi, (32) oakeyi - female, (33) oakeyi - large male. Pronotum 34 – 35: (34) kranzae, (35) oakeyi.