This orchid-living species has not been studied by the present authors.
The genus Trichromothrips, together with its synonym Dorcadothrips, currently includes 34 species. These species apparently originated in the area between Southeast Asia and Australia, but several of them are now more widespread around the world (Bhatti, 2000). T. xanthius is apparently unique within this genus in having coarse-grained dark areas on either side of abdominal sternites V and VI (Nakahara, 1993).
Trichromothrips xanthius (Williams)
Thripidae, Thripinae
Not recorded.
Cattleya sp.; Cypripedium sp.; Laelia sp.; Odontoglossum sp. (Orchidaceae).
None
None
Presumably Southeast Asia.
Taken in greenhouses widely around the world (Nakahara, 1993: 408).