Mating behaviour and egg maturation in <i>Diadegma semiclausum</i> Hellen (Hymenoptera Ichneumonidae)


  • D. Khatri
  • X.Z. He
  • Q. Wang



Diadegma semiclausum is an important larval parasitoid of diamondback moth Plutella xylostella Little was known about the reproductive biology of this parasitoid The present study investigated mating behaviour and egg maturation dynamics of D semiclausum in the laboratory at 211C 168 h (lightdark) and 5060 RH Both males and females became sexually mature <12 h after emergence When paired with 3dayold virgin mates significantly more newly emerged females (<12 h old) mated compared to newly emerged males (P<0001) Both sexes could mate more than once Females immediately after eclosion (<1 h old) did not contain mature eggs in the ovaries suggesting that it is a synovigenic species Maternal age affected the egg load which was greatest in 72hold females Egg maturation occurred without food supply suggesting that D semiclausum is an autogenous and non host feeding species The implication of this study in massrearing in the laboratory is discussed




How to Cite

Khatri, D., X.Z. He, and Q. Wang. “Mating Behaviour and Egg Maturation in &lt;i&gt;Diadegma semiclausum&lt;/i&Gt; Hellen (Hymenoptera Ichneumonidae)”. New Zealand Plant Protection 62 (August 1, 2009): 174–178. Accessed November 29, 2021.




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