Technical Abstract: Natural enemies are important mortality factors for herbivores and thus may influence herbivore population dynamics. In response to natural enemy pressure, herbivores can alter life history decisions, such as oviposition behavior, so that offspring are protected from natural enemies. One such strategy is to deposit eggs into structures where vulnerability to natural enemies is reduced or eliminated, i.e., use enemy-free space. The plant bug, Lygus lineolaris (Palisot de Beauvois), is native to North America and has a broad host range (>350 plant species), including crops. This bug’s eggs are attacked by a native parasitoid, Anaphes iole Girault, and parasitism levels vary greatly among host plants. Non-crop weedy hosts are critical to contemporary L. lineolaris life history, because they serve as an ecological bridge from one crop growing season to the next. We investigated the egg distribution pattern of L. lineolaris on 11 host plants (nine weeds and two crops), and parasitism by A. iole, to determine whether oviposition choices by L. lineolaris females protect their eggs from parasitism. Our results indicate that the reproductive structures of several host plants provide a refuge from parasitism for most L. lineolaris eggs. Also, overall parasitism levels were greater on exotic host plants compared to native plants. Oviposition site choice by female bugs appears to be a selective strategy to take advantage of enemy-free space.