Wheat is an economically important crop in Colorado with approximately 2.2 million acres planted in the state at total value of around $580 million based on 2012 harvest information. Wheat stem sawfly (Cephus cintus) is a significant pest of wheat in Colorado and other wheat growing areas of the United States and can have severe impacts on production. So far, no study has been conducted that has mapped the current and potential distribution of this species in Colorado. This project will integrate remote sensing imagery with known distributions of wheat stem sawfly to improve distribution model predictions. Wheat stem sawfly (WSS) presence data has been collected from Eastern Colorado from 2012 to 2014 by researchers in the Bioagricultural Sciences and Pest Management Department in the College of Agriculture at CSU and has been shared for the purpose of this study. The purpose of this study is to map the current and potential distribution of wheat stem sawfly in Colorado. This study will determine bioclimatic variables that are significantly correlated with wheat stem sawfly infestation and apply this information to predict future areas that this species can spread to in Colorado. This study integrates ecological theory with geospatial systems and statistical knowledge to achieve the proposed goals.Interns: Jordan Lestina, Maxwell CookReport: Invasive species habitat suitability modeling for the Wheat Stem Sawfly in Colorado