Biology, morphology and oviposition behavior of Anagrus atomus (Linnaeus), an egg parasitoid of the
grape leafhopper Arboridia kermanshah Dlabola in Isfahan, Iran, were investigated. Adults were smaller
than those so far reported from other regions. Females continuously drummed on plant surfaces with their
antennae to search for host eggs. Parasitoid eggs hatched 2–3 days after oviposition, and A. atomus had
two larval instars. First instar larvae were sacciform and immobile. Second instar larvae appeared 4 days
after oviposition and were very active, and doubled their body length. The prepupal and pupal stages lasted
for 1 and 5–6 days, respectively. Adult emergence began 16 days after oviposition, and peaked on day 17.
