A comparative study of the four species of paddy stem-borers belonging to the genera Chilotraea and Chilo in Asia (Lepidoptera: Pyralidae: Crambinae)

Abstract

A comparative account of the larval chaetotaxy, pupal structure, venation and genitalia of moths of four species of striped borers belonging to the genera Chilotraea and Chilo (Lepidoptera: Pyralidae: Crambinae) attacking paddy in Asia is given in detail. The species dealt with are Chilotraea auricilia (Ddgn.), C. polychrysa (Meyr.), Chilo suppressalis (Walk.) and C. partellus (Swinh.). Four tabular statements and four keys showing the differences in the chaetotaxy of the borers, pupal structure, wing venation and genital structures are also included to facilitate the accurate determination of these species.