Records from the Castle Museum, Norwich in 1997, when adults emerged from stored Wheat Sheaf, and the John Innes Centre, Norwich in 2015, when several specimens were found in a grain storage room.
Agricultural pest overseas, the moths lay their eggs on wheat heads or corn tips in the field or on stored grain. This insect is particularly damaging to whole grain kernels since its larva bores into and devours the endosperm and germ of the kernel. The larvae feed and develop entirely inside the kernels. Before pupation they cut their characteristic circular exit hole in the seed coat.
Determination by Genitalia Examination (gen. det.) Required
Recorded in 3 (4%) of 69 10k Squares. First Recorded in 1874. Last Recorded in 2015. Additional Stats