Micrographs of dissected digestive and reproductive tracts of a female Blissus insularis bug. Abbreviations: M1, M2, and M3, first, second, and third sections of the midgut, respectively; M4, fourth section of the midgut with crypts; M4B, M4 bulb; H, hindgut; MT, Malpighian tubules. The labeling corresponds to that used for Cavelerius saccharivorus (24).