**Nickolas G. Kavallieratos**

Nickolas G. Kavallieratos is an Associate Professor of Agricultural Entomology and Acarology at the Agricultural University of Athens (AUA). During 2002-2014, he was a researcher at Benaki Phytopathological Institute (BPI) serving in all scientific ranks and administration positions (Head of the Laboratory of Agricultural Entomology, Head of the Department of Entomology and Agricultural Zoology, and Deputy Director) at BPI. He has also worked at several universities and institutes in Greece, Europe and Africa. Since 2009, he has been a frequent visiting scientist at the United States Department of Agriculture (USDA), Center for Grain and Animal Health Research, in Manhattan KS. Since 2001, he has also been a frequent visiting scientist at the Faculty of Biology, University of Belgrade. He studies morphology, morphometry, systematics, zoogeography, phylogeny, genetics and behavior of the Aphidiinae (Braconidae) parasitoids of aphids, providing descriptions of new species in science, redescriptions of species and genera, revisions of genera and reviews around the world (Europe, Asia, Africa, and North and South America) since 1994. The overall outcome of his research deals with the generation of tools that enable entomologists to identify Aphidiinae parasitoids with ease in different types of habitats, host plants and host aphids. He has also been working on the biology, ecology, demography, mating behavior and management of stored-product pests (insects, mites) with the use of natural (diatomaceous earths and other inert dusts), biological (entomopathogenic fungi, entomopathogenic nematodes and bacteria), chemical insecticides, and novel chemical or natural compounds (essential oils, nanoemulsions and microemulsion) that exhibit insecticidal properties. Prof. Kavallieratos has published >300 papers in peer-reviewed journals.
