Xyelethrips quadritibia (Girault)

Mound, Laurence A., Tree, Desley J. & Wells, Alice, 2022, Convoluted maxillary stylets among Australian Thysanoptera Phlaeothripinae associated mainly with Casuarinaceae trees, Zootaxa 5190 (3), pp. 301-332 : 331

Xyelethrips quadritibia (Girault)

( Figs 74–78 )

Pygmaeothrips quadritibia Girault, 1927a: 3

Six females of this species have been studied, taken at four different sites in northeastern Queensland in the region west of Rockhampton. Four of these females were taken by insecticide barkspraying of Acacia harpophylla , and as all four are micropterae this suggests that they were living on the trunk of the trees. The generic diagnosis given by Mound (1970) has been checked against each of the six specimens and remains valid, apart from an error in referring to the mesotergal lateral setae as “mesosternal”. The micropterae differ from macropterae as follows: ocelli absent; metanotum transverse; fore wing lobe small, about 0.2 of thorax width; tergites without wing-retaining setae; tergite IX setae S1 capitate, shorter than tube and about as far apart as basal width of tube

Specimens studied. Holotype female macroptera, Queensland: Rockhampton, in forest, 13.iv.1923 (in QM). Queensland: Rockhampton 500km north, Redcliffe Tablelands , 2 female micropterae from barkspray of Acacia harpophylla , 18.iv.2012 (in QDPC); Rockhampton 400km southwest. Lake Nuga Nuga , 2 female micropterae from barkspray of Acacia harpophylla , 8.vi.2014 (in QDPC); Rockhampton 200km west, Blackwater , 1 female macroptera from Eremophila , iv.2007 (in ANIC).

Figures

FIGURES 69–78. Iotatubothrips & Xyelethrips. I. daguilari 69–73: (69) head & pronotum; (70) metanotum & pelta; (71) tergites IX–X; (72) antenna; (73) macroptera tergites IV–VI. X. quadritibia 74–78: (74) prosternites; (75) head; (76) tergites VIII–X; (77) antenna; (78) metanotum & pelta.