Bitebytes is a tool for citizens to report mosquito activity, to supplement expensive mosquito trapping. Crowd-sourced mosquito identification can be an additional source of information for monitoring and forecasting mosquito abundance anywhere that user engagement is high. In addition to gathering data and enhancing city mosquito-monitoring networks, the app can be used to educate the public on mosquitoes, the diseases mosquitoes transmit, and mosquito habitat control. We hope people will feel empowered by reporting mosquitoes and contributing to data collection in their city or county.