Yarnkothrips Mound & Walker

Mound, Laurence A., Dang, Li-Hong & Tree, Desley J., 2013, Genera of fungivorous Phlaeothripinae (Thysanoptera) from dead branches and leaf-litter in Australia, Zootaxa 3681 (3), pp. 201-224 : 220-222

Yarnkothrips Mound & Walker

Described from New Zealand ( Mound & Walker 1986), the only described species, Y. kolourus , has recently been found at several sites in Australia near Canberra, in southern New South Wales and Tasmania ( Fig. 44 ). Moreover, specimens representing at least one more species of this genus are available in ANIC.

Diagnosis. Head longer than wide; postocular setae shorter than eye length; stylets retracted almost to eyes, maxillary bridge arched; antennae 8-segmented, III with 3 sensoria, IV with 4; pronotum with 4 pairs of long pointed setae; notopleural sutures incomplete; basantra present; mesopraesternum transverse, fused to mesoeusternum; sternopleural sutures present and wide; fore tarsal tooth small; fore wings parallel-sided, with duplicated cilia; pelta elongate; tergites II–VII each with one pair of wing retaining setae; tube shorter than head, anal setae short, less than half as long as tube; male sternite VIII with transverse pore plate.

Figures

FIGURES 39 – 45. Phlaeothripinae genera. (39) Stomothrips mouldeni; (40) Stephanothrips occidentalis; (41) Strepterothrips orientalis, male; (42) Plectrothrips australis, pelta & tergite II; (43) Stomothrips mouldeni, thoracic sternites; (44) Yarnkothrips kolourus; (45) Terthrothrips ananthakrishnani.