Print Fact SheetTrichromothrips cyperaceae

Distinguishing features

Female fully winged. Body yellow, abdominal apex and distal antennal segments light brown; fore wings pale. Antennae 8-segmented; segment I with  a pair of small dorso-apical setae; segments III & IV each with a small slender forked sense cone. Head wider than long; 2 pairs of ocellar setae, pair III longer than width of eye; one small tubercle on inter-antennal projection; ocellar region with no sculpture, vertex with a few transverse lines. Pronotum without sculpture; 2 pairs of long posteroangular setae, 2 pairs of posteromarginal setae. Metanotum without sculpture; median setae far back from anterior margin; no campaniform sensilla. Fore wing first vein with 2 setae on distal half; second vein with about 12 setae. Abdominal tergites with weak sculpture lines laterally; tergite VIII with no marginal comb; tergite X with no longitudinal split. Sternites III–VII with 6–12 discal setae.

Related species

The genus Trichromothrips includes worldwide a total of 38 species (Masumoto & Okajima, 2005; Li et al., 2019), including species that at one time were placed in the genus Dorcadothrips. A second species recorded from California, T. xanthius (Williams), can be distinguished by the presence laterally on abdominal sternites V & VI of paired dark, coarsely-grained areas of sculpture. T. xanthius is apparently associated with orchids (Bhatti, 2000).

Biological data

Breeding on Cyperus rotundus [Cyperaceae] (Bhatti, 2000).

Distribution data

A substantial population was found on Cyperus near Riverside, California, but the species is also recorded from Bermuda and Hawaii (Mound et al., 2016).

Family name


Species name

Trichromothrips cyperaceae (Bianchi)

Original name and synonyms

Taeniothrips cyperaceae Bianchi, 1945: 283


Bhatti JS (2000) Revision of Trichromothrips and related genera (Terebrantia: Thripidae). Oriental Insects 34: 1–65.

Li YJ, Li ZY & Zhang HR (2019) Trichromothrips genus-group (Thysanoptera, Thripidae) from China, with descriptions of three new species and ten new records. Zootaxa 4544 (1): 079–092.

Mound L, Nakahara S & Tsuda DM (2016) Thysanoptera-Terebrantia of the Hawaiian Islands: an identification manual. ZooKeys 549: 71–126.