Chrysopa oculata

Beneficial insects associated with fruit orchards show different responses to diflubenzuron treatment (Broadbent and Pree 1984). Lacewings (Chrysopa oculata) in contact with leaves containing 300 mg/kg DW had reduced survival and inhibited molting of first instar larvae, but the assassin bug (Acholla multispinosa) was not affected by contact with treated leaves. Lacewings and other beneficial predator insects fed diflubenzuron-treated, two-spotted spider mites (Tetrany-chus urticae) for 3 days showed no adverse effects after 14 days (Broadbent and Pree 1984). 

The secretion from the prothoracic glands of the lacewing Chrysopa oculata (Chrysopidae) contains skatole (140) and tridecene (Table VIII) and offers some protection against invertebrate predators, such as ants. Uric acid (95) is stored as one of the excretory products of nitrogenous metabolism in fat bodies of the larvae of C. carnea (Table VI). 

GC-EAD analysis of thoracic extracts of the male green lacewing, Chrysopa nigricornis Burmeister, showed that two compounds elicited response from conspecific male antennae 1-tridecene and (li , 25, 5R, 8i )-iridodial. Iri-dodial also attracted males of the goldeneyed lacewing, C oculata Say, and to a lesser extent, C. coloradensis Banks males. 

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