Does regeneration ability influence reproductive fitness in Menochilus sexmaculatus (Coleoptera: Coccinellidae)?

作者：Saxena Swati; Mishra Geetanjali; Omkar^*

来源：Journal of Asia-Pacific Entomology, 2016, 19(3): 829-834.

DOI：10.1016/j.aspen.2016.07.012

• Pupation time
• Body weight
• Fecundity
• Percent egg viability

In holometabolous insects the complete transformation in body plan occurs in two steps i.e. from last larval stage to pupa and from pupa to adults. A couple of studies revealed that regeneration depends upon the site of amputation. In the present study, third and fourth instar larvae of zig-zag ladybird beetle, Menochilus sexmaculatus, were subjected to the limb amputation treatment at three different sites (base of coxa, tibia and pretarsus). Regeneration or reformation of limbs did not occur in fourth instar when its preceding stage i.e. third instar was amputated. However, the adults emerging from both the amputation treatments i.e. third instar and fourth instar had all limbs. The regenerated adults were marked with longer pupa duration and increased body mass as compared to the unregenerated adults suggesting that some repair to the damage may happen during the pupal stage. When adults were allowed to mate then the unregenerated adults had shorter mating duration and reduced fecundity and percent egg viability. 0 2016 Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society. Published by Elsevier B.V.

• 出版日期2016-9