Wounding as an index of aggressive interactions in larval Zygoptera (Odonata)

We investigated the use of the frequency of wounds to legs and lamellae of larval Zygoptera as an index of aggressive interactions. Criteria for recognizing recent wounds were based on laboratory studies of Ischnura verticalis and Enallagma ebrium larvae with autotomized legs and lamellae; legs and lamellae showing less than 75 and 66% regeneration, respectively, were likely wounded in the preceding instar. Laboratory studies indicated that the …