Leeuwenia Karny

Dang, Li-Hong, Mound, Laurence A. & Qiao, Ge-Xia, 2014, Conspectus of the Phlaeothripinae genera from China and Southeast Asia (Thysanoptera, Phlaeothripidae), Zootaxa 3807 (1), pp. 1-82 : 46

Leeuwenia Karny

( Figs 70 , 128 )

Leeuwenia Karny, 1912b: 161 . Type species: Leeuwenia gladiatrix Karny , by monotypy.

This is an Old World genus with most species in tropical Asia. These are leaf-feeding, sometimes gall-inducing, thrips and 27 species are listed in the area between Mauritius, Japan and northern Australia ( Mound 2004). Seven species are recorded from China, four from Indonesia and two from the Philippines. Despite the elongate tube, this genus is probably related to Gynaikothrips in the Liothrips- lineage.

Diagnosis: Head longer than wide ( Fig. 128 ); eyes normal, postocular setae developed or reduced; stylets usually retracted to one third of head length, wide apart; antennae 8-segmented, III with 1 sensorium, IV with 2; pronotum usually with 4 pairs of developed setae, am reduced, notopleural sutures incomplete or complete; basantra absent; mesopresternum transverse; sternopleural sutures absent; fore tarsal tooth absent in both sexes; fore wings parallel-sided, without duplicated cilia; pelta trapezoidal or hat-shaped; tergites II–VII with 2 pairs of fan-shaped wing-retaining setae; tube very long ( Fig. 70 ), usually more than twice as long as head, with fine or robust setae on surface, anal setae short; male sternite VIII with or without pore plate.

Figures

FIGURES 66–70. Phlaeothripinae genera. Head & pronotum 66–67: (66) Horistothrips australiae; (67) Liothrips vaneeckei. (68) Phylladothrips pictus, tergites VII–X; (69) Plicothrips apicalis, tergites III–VI; (70) Leeuwenia karnyiana, male tegites VI–X.

FIGURES 126–129. Liothrips-lineage. Head & pronotum: (126) Eugynothrips brevisetis; (127) Phenicothrips siamensis; (128) Leeuwenia caelatrix; (129) Phasmothrips asperatus.