Chilo suppressalis Walker | The Pyralids of Borneo

Family: &nbsp; Crambidae
Subfamily: &nbsp; Crambinae
Tribe: &nbsp; Chiloini
Genus: &nbsp; Chilo
Distribution: Africa (East), Pakistan (Punjab, Sind), India (Bengal), Thailand, West Malaysia, China, Japan, Taiwan, Australia, Hawaii.
Habitat: Agricultural areas.
Wing Length: 9mm

Taxonomy

The female holotype of Crambus suppressalis Walker, 1863a: 166 is from China [Kiangsu], Shanghai, it is in the BMNH.

Description

There is marked sexual dimorphism with males having broader chestnut brown FWs whereas those of the female are longer and narrower, buff coloured and speckled with black scales. In both sexes the FW have black interneural spots on the termen and the unmarked HW is shining white.

Life History

The striped rice borer is a pest of a great number of Gramineae spp. for example:

Chilo suppressalis Walker specimen plate

References

Butler A. G. (1881a) On a second collection of Lepidoptera made in Formosa by H. E. Hobson, Esq., Proc. zool. Soc. Lond: 1880: 666-691, pl. 44.
Kapur, A.P. (1964) Taxonomy of Rice Borers, In Major Insect Pests of the Rice Plant. Proceedings of a symposium at the International Rice Research Institute Sept. 14-18 1964 International Rice Research Institute, John Hopkins Pess, Baltimore, Maryland.