Hydatothrips haschemi Girault

Mound, Laurence A. & Tree, And Desley J., 2009, Identification and host-plant associations of Australian Sericothripinae (Thysanoptera, Thripidae), Zootaxa 1983, pp. 1-22 : 7-9

Hydatothrips haschemi Girault

( Figs 20–26 )

Hydatothrips haschemi Girault, 1930: 2

Hydatothrips palawanensis Kudo, 1997: 336 syn.n.

Described from a single female, taken on a window at Indooroopilly, Brisbane, in December 1929, this species is common near Brisbane on the leaves of Centrosema , and has been found near Darwin on Calopogonium . One female of this species has also been studied from Thailand. Kudo (1997) has given an excellent description of the same species, under the synonym indicated above, based on six females and two males taken on Centrosema pubescens on Palawan, Philippines. One female and one male paratype have been studied from that series, and the presence of a sub-apical lobe on the forewings of both sexes has been confirmed. This species differs from the four Australian endemic species discussed above in this presence of a forewing sub-apical lobe, and also in having extensive microtrichia on the sternites but no marginal craspedum medially on the tergites. It is particularly remarkable for the lack of the elongate median pair of postocular setae that are found in most species of Sericothripinae .

Female macroptera. Body and legs bicoloured, mainly brown with pronotum largely yellow, tergites IV–V (sometimes VI) brownish yellow with dark antecostal line; legs variable from yellow to brown; forewings light brown with pale sub-basal area. Head with occipital carina close to eyes; ocellar triangle weakly reticulate; ocellar setae III on anterior margins of triangle; only two pairs of postocular setae, median long pair absent. Pronotum with anterior third boldly reticulate, blotch transversely reticulate. Metanotum with irregular linear sculpture, with some markings between the main lines. Forewing with sub-apical lobe extending beyond base of terminal seta. Tergites II–VI with no marginal comb medially. Discal microtrichia extending fully across sternites V–VI, posterior margins medially with no long microtrichia; sternite VII medially with neither median discal nor marginal microtrichia.

Male. Sternites V–VII with large transversely oval glandular area.

Figures

FIGURES 15 – 26. Hydatothrips bhattii & H. haschemi. (15 – 19) H. bhattii, (15) Head; (16) Meso & metanota; (17) Sternites; (18) Metasternum; (19) Tergites. (20 – 26) H. haschemi, (20) Head & pronotum; (21) Pro, meso & metanota; (22) Tergites; (23) Sternites; (24) Male sternites; (25) Antenna; (26) Forewing apex.