Research in my lab focuses on the taxonomy, ecology, and evolution of diverse insect groups, including Gall midges, gall wasps, parasitic wasps, aquatic insects, beetles and ants. I am particularly interested in various aspects of insect-plant interactions in gall-inducing groups and in the use of insects for the biological control of invasive weeds. I employ morphological, molecular, behavioral and ecological tools to discover new taxa, reconstruct their phylogeny, and infer evolutionary trends among them. I study factors that promote speciation and shape host-associations in herbivorous insects by combining fieldwork with laboratory and greenhouse experiments, and conduct field surveys to promote the knowledge on the Israeli insect fauna.