author(s)
Nitin Gajbe, M.A. Khan, S.M.Dadmal and Suvarna Khadakkar

abstract
Eulophidae is ecologically and economically most important and largest family of superfamily chalcidoidea consisting of about 350 genera and more than 3,000 species of parasitoids for controlling the crop pests. The present study on subfamily Tetrastichinae ( Eulophidae :Hymenoptera) has been made to provide occurrence and account of two genera viz., Tetrastichus and Aprostocetus which include redescription of 4 species Tetrastichus triozai Khan, Aprostocetus dellus (Narendran), A. Gala (Walker) and A. percaudatus (Silvestri) collected from Uttarakhand (India).