Ecacanthothrips Bagnall

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 : 209-210

Ecacanthothrips Bagnall

This genus comprises 11 species from southeast Asia, and appears to represent a particular subgroup of Hoplandrothrips with multiple, large, sensoria on the third antennal segment ( Fig. 21 ). These thrips live on dead branches, and E. tibialis , a highly variable species widespread in the Old World tropics, has been found in Queensland.

Diagnosis. Head as long as wide or much longer, cheeks usually with stout setae; postocular setae long; stylets long and retracted to eyes, close together medially; antennae 8-segmented, III usually with at least 6 stout sensoria, IV with 4; pronotum usually with 5 pairs of major setae; notopleural sutures complete; basantra absent; mesopraesternum usually eroded medially and divided into three; sternopleural sutures present; fore tarsi present in both sexes, fore femur usually with pair of apical tubercles in male; fore femur sometimes with median tooth at inner margin in both sexes; fore wings weakly constricted medially, with duplicated cilia; pelta triangular or bellshaped; tergites II–VII each with 2 pairs of wing-retaining setae, often with several accessory wing-retaining setae; tube shorter than head, anal setae a little shorter than tube; male sternite VIII without pore plates.

Figures

FIGURES 19 – 24. Phlaeothripinae genera. (19) Baenothrips moundi, tergites IX – X; (20) Senithrips psomus, antenna; (21) Ecacanthothrips tibialis, small male; (22) Habrothrips curious; (23) Hoplothrips orientalis small male; (24) Horistothrips australis; (25) Holothrips oceanicus.