Benyl obtained her PhD from the University of Nairobi, Kenya, and carried out her research at the International Centers of Excellence for Malaria Research (ICEMR), Kenya. During her PhD, she researched the effect of a recently established irrigation scheme in Homa Bay, Kenya, on malaria vector bionomics and transmission. She also investigated the long-term changes in malaria transmission profiles and patterns of asymptomatic malaria infection in sites with different transmission intensities in western Kenya with ongoing malaria vector interventions.
Currently, Benyl is a postdoctoral fellow (Kempe Foundation) at the Department of clinical microbiology at Umeå University. She has joined the Olivia Wesula Lwande group to investigate the infection of the O’nyong-nyong virus (ONNV) on the vector competence, fecundity, and olfaction of Anopheles stephensi under fluctuating temperature regimes.