Indusiothrips seshadrii Priesner.

Mound, Laurence A., Matsunaga, Janis N., Bushe, Brian, Hoddle, Mark S. & Wells, Alice, 2017, Adventive Thysanoptera Species in the Hawaiian Islands: New Records and Putative Host Associations, Proceedings of the Hawaiian Entomological Society 49, pp. 17-28 : 20

Indusiothrips seshadrii Priesner.

Until now, this species was known only from the original specimens collected in southern India. It is identified here by means of the key that was provided by Wilson (1975) in describing the only other species in the genus. Both of them apparently live on ferns, and I. nakaharai has been found in large numbers on Polypodiaceae in Honshu, Japan (Okajima and Urushihara 1994). The two species are distinctive in having the head reticulate ( Fig. 2 ), and all the major setae minute on the body and forewings, except for two pairs of remarkably long setae with broadly expanded apices on tergite IX. Both species are small and white in color, but seshadrii has uniformly dark forewings and a dark area on the anterior half of the head, whereas nakaharai is almost entirely yellow. One female of seshadrii was taken from an unidentified fern on the Mokuleia Trail, Oahu (in ANIC).

Figures

Figures 1–5. Thrips new to Hawaii. 1. Leaf-damage on Colocasia esculenta by Biltothrips minutus (photo: S. Chun). 2. Head of Indusiothrips seshadrii. 3. Head and pronotum of Monilothrips kempi. 4. Head and thorax of Trichromothrips priesneri. 5. Forewing of Coremothrips pallidus.