Psalidothrips gloriousi, Wang & Mound & Tree, 2019

Wang, Jun, Mound, Laurence A. & Tree, Desley J., 2019, Leaf-litter thrips of the genus Psalidothrips (Thysanoptera, Phlaeothripidae) from Australia, with fifteen new species, Zootaxa 4686 (1), pp. 53-73 : 60-61

Psalidothrips gloriousi sp.n.

( Figs 7 , 19 , 38 )

Female macroptera. Body almost uniformly brown, head darkest and tube paler; femora brown, but mid and hind tibiae and tarsi yellow; antennal segments I–II brown, III–VIII yellow weakly shaded with brown; fore wing shaded. Head without sculpture, narrowed to base, genae constricted behind eyes with stout postocular internal apodeme; compound eyes multifacetted; postocular setae slightly shorter than dorsal eye length; ocelli present, postocellar se- tae minute; maxillary stylets about two-thirds of head width apart, retracted about half way to postocular setae ( Fig. 7 ). Antennal segment III with 3 sense cones (rarely 2), IV with 4 sense cones, III–VII each with pedicel, VIII slender and narrowed to base; segment III as long as IV, VIII as long as VII. Pronotum without sculpture; setae ml, epim and pa long and bluntly pointed to weakly capitate, aa and am minute. Mesonotum with weak reticulation; metanotum not sculptured, median setae minute; mesopresternum usually with posterior margin slightly eroded and separate from mesoeusternal border ( Fig. 19 ). Fore tarsal tooth absent. Fore wing with sub-basal setae small; 4–5 duplicated cilia present.Abdominal tergites with weak sculpture on anterior thirds; pelta recessed into anterior margin of tergite segment II, with lateral lobes; II–VII with two pairs sigmoid wing-retaining setae, but median setae minute ( Fig. 38 ); tergite IX setae S1 shorter than tube, anal setae as long as tube.

Measurements (holotype female in microns). Body length 2170. Head, length 208; width 188; postocular setae 68, distance between their bases 140; postocellar setae 9, distance between their bases 57. Pronotum, length 145; median width 252; major setae am 6, aa 6, ml 65, epim 68, pa 87. Metanotum median setae 10. Fore wing sub-basal setae S1 10, S2 20. Tergite IV median marginal setae 100; tergite VIII median setae 52, tergite IX setae S1 110, S2 90. Tube length 143; anal setae 150. Antennal segments III–VIII length 70, 71, 65, 65, 45, 52.

Female aptera. Paler than macroptera, legs almost uniformly yellow; compound eyes angulate, multifaceted, with at least 25 facets of which one is unusually large; antennal segment III with 3 sense cones, IV with 4.

Male aptera. Similar to female but compound eyes smaller with only about 12 facets; antennal segments III and IV each with 2 sense cones; sternite VIII with broadly transverse pore plate.

Specimens studied. Holotype female macroptera, Queensland, Mt. Glorious , dead Eucalyptus leaves in rainforest, 18.i.2006 ( DJT 198 ), in ANIC.

Paratypes (macropterae unless stated), all from Queensland: same site, 1 female from dead branch, 19.i.2006 ; same site, 3 females from dead leaves and branches, 10.v.2007, 1 female aptera, from rainforest litter, 12.vii.2008; Mt. Glorious, Piccabeen forest , I female from dead wood, 11.xi.2009 ; Lamington, O'Reilly's , 8 females from dead leaves and twigs, 9.x.2006 ; same locality, 5 females, 2 male apterae, iii.2007 ; same locality, 1 female, viii.2013 ; Kondalilla Falls N.P., 2 male apterae from dead leaves, 17.v.2007 ; Mt. Cordeaux, Cunningham’s Gap , 4 females, 6.iv.2008 ; Cape Tribulation, Mt. Sorrow Track , 3 females, 1 male aptera, 8.x.2012 .

Comments. The number of sense cones on antennal segment III of this species is usually three but occasionally only two are present. The presence of an almost complete mesopresternum and also two well-developed pairs of sigmoid wing-retaining setae in macropterae are characters states shared with bipictus and verus . The head has a stout internal apodeme behind each eye, and in macropterae the compound eyes are slightly angulate with one larger facet, much as in tritus . This species is also similar to driesseni in having fore wing duplicated cilia, although in macropterae of driesseni the anterior pair of wing-retaining setae is weakly developed on each tergite.

Figures

FIGURES 1–9. Psalidothrips species, head & pronotum. (1) bipictus; (2) brittoni macropterous female; (3) brittoni apterous male; (4) cecryphalus holotype; (5) howei; (6) driesseni male; (7) gloriousi; (8) daguilari; (9) greensladeae.

FIGURES 19–37. Psalidothrips species. Mesopresternum 19–22 (19) gloriousi; (20) driesseni macroptera; (21) driesseni aptera; (22) howei. Male pore plate 23–30 (23) brittoni; (24) cecryphalus; (25) driesseni; (26) howei; (27) minantennus; (28) postlei; (29) taylori; (30) tritus. Antennae 31–37 (31) brittoni; (32) cecryphalus; (33) minantennus; (34) platetus; (35) trivius; (36) verus; (37) wellsae.

FIGURES 38–49. Psalidothrips species tergites. Pelta & tergites II–III 38–43 (38) gloriousi macroptera; (39) verus macroptera; (40) tritus macroptera; (41) minantennus aptera;(42) howei aptera; (43) wellsae aptera. Pelta 44–46 (44) brittoni; (45) greensladeae; (46) postlei. Tergites & tube 47–49 (47) bipictus; (48) daguilari; (49) greensladeae.