Euxesta stigmatisLoew, preferred silk tips for oviposition (P<0.5) over other parts of corn plants. Most oviposition occurred during daylight hours, but peaked between 1100 and 1800 hours (EST). Few eggs (12–17%) deposited at the leaf base completed development, whereas eggs laid inside the tassel did not develop. Highest percentage of adult emergence was from com ears (41–83%). Development from egg to adult was longer on seed corn,Zea maysL. ‘Pioneer’ 305, 35–37 d, than on sweet com, ZeamaysL. ‘Silver Queen’, 30–32 d. Development times did not vary with seasons or sex, but development of different stages of E. stigma tis was the shortest at 30°C (egg-adult, 28.2 d).