none Tetrastichus pantnagarensis Khan (Hymenoptera: Eulophidae) was recorded as a hyperparasite of Diaphania indica (Saunders) (Lepidoptera: Pyralidae) through Apanteles taragamae Viereck (Hymenoptera: Braconidae). Studies were conducted on its biology. This solitary endoparasite oviposited in the host pupa within the host cocoon and the larva passes through 3 instars. Mean development time from egg to adult is 12 multiplied by 18 days at 26 multiplied by 43 plus or minus 2 multiplied by 53 degree C. After a preoviposition period of 1-2 days oviposition continued for 7-10 days. Mean adult longevity for males was 8 multiplied by 51 days and for females 11 multiplied by 41 days.