Thysanoptera in Australia

Recognition data

Distinguishing features

Female macropterous; body dark brown; all tarsi and bases and apices of tibiae yellow; antennal segment II dark brown, III and IV yellow with apical half light brown, V mainly yellow with apex shaded; fore wing brown, with two white cross bands, sub-basally and sub-apically, also variably pale on anterior part of median dark band, extreme apex dark. Head not constricted at base. Antennae 8-segmented, III and IV with long forked sensorium, VIII at least twice as long as VII. Pronotum reticulate, many markings within each reticle, no long setae. Metanotum irregularly reticulate, one pair of major setae near anterior margin. Tarsi elongate but 1-segmented; hind coxae with coiled internal apodeme. Fore wing second vein with about five setae; longest costal cilia almost as long as costal setae. Tergite lateral thirds with widely-spaced transverse lines and many markings between these; VIII with craspedum medially, tooth-like microtrichia laterally; median split on X about half as long as tergite.

Male tergite IX with three pairs of stout setae medially; sternites IV-VII with small transverse pore plate.

Related and similar species

In recognising that quadrifasciatus and graminicola represent the same species, Mound & Houston (1987: 4) incorrectly used the name that was published later rather than the oldest available name. This error has been perpetuated in subsequent publications but is here corrected (in February 2013).  Caliothrips is a genus of 20 species. Most of these are from the New World, with ten in North or Meso-America and three from Carribean Islands. Four species are from Africa and three from Asia, and two species extend into Australia. C. quadrifasciatus has the abdominal tergites with transverse striae, but unlike C. striatopterus the extreme apex of the forewing is dark.

Distribution data

Described from Sudan, and recorded from eastern Africa; widespread in India (Wilson, 1975); found rarely in northern Australia

Biological data

Host plants

Apparently associated with Poaceae

Life history

Presumably breeding on the leaves of grasses

Taxonomic data

Current valid name

Caliothrips quadrifasciatus (Girault)

Original name and synonyms

  • Sericothrips quadrifasciatus Girault, 1927
  • Caliothrips graminicola Bagnall & Cameron, 1932

Oz thrips taxa