Ecacanthothrips Bagnall

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 : 31

Ecacanthothrips Bagnall

( Figs 12 , 130 )

Ecacanthothrips Bagnall, 1909: 348 . Type species: Acanthothrips sanguineus Bagnall , by monotypy, synonym of Idolothrips tibialis Ashmead, 1905: 20 .

There are 11 species included in this genus, all from Asia but with one species introduced to Africa ( Palmer & Mound 1978). Three are recorded from China, two from Malaysia, two from the Philippines, and one each from Borneo, Thailand, the Philippines, and New Guinea. These fungus-feeding species share many character states with Hoplandrothrips species , but have very large, and usually multiple, sensoria on the third antennal segment ( Fig. 12 ).

Diagnosis: Head as long as wide or much longer ( Fig. 130 ), 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 ( Fig. 12 ), IV with 4; pronotum usually with 5 pairs of major setae; notopleural sutures complete; basantra absent; mesopresternum 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 ( Fig. 130 ); fore femur sometimes with median tooth at inner margin in both sexes ( Fig. 130 ); fore wings weakly constricted medially, with duplicated cilia; pelta triangular or bell-shaped; 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 11–20. Phlaeothripinae genera. Antennae 11–18: (11) Akarethrips iotus; (12) Ecacanthothrips tibialis; (13) Eurhynchothrips messuicola; (14) Eugynothrips sumatranus; (15) Heliothripoides boltoni; (16) Isotrichothrips longirostris; (17) Litotetothrips sp.; (18) Phenicothrips daetymon. Head & pronotum 19–20: (19) Asianthrips orientalis; (20) Apelaunothrips aokii.

FIGURES 130–133. Phlaeothripinae genera. Head & pronotum: (130) Ecacanthothrips claricornis, male; (131) Phylladothrips pictus; (132) Glenothrips biuncinatus; (133) Okajimathrips kentingensis.