Adalia Adaline

Adalia quadrimaculata Scopoli and A. pantherina L. also yielded adaline (2). 

A number of nemertine worms, such as Amphiporus or Nereis, produce alkaloids such as 2,3-bipyridyl, anabaseine, nemertelline, or nereis-toxin, which are toxic to predators such as crayfish 4,17,28,230,226,). Arthropod-made alkaloids include glomerine and homoglomerine in Glom-erus 215), adaline in Adalia 227), coccinelline, euphococcinine, and derivatives in Coccinella, Epilachna, and other coccinellid beetles 28,226,227,235), and stenusine in Stenus 215), which are considered to be antipredatory compounds 4,17,28,494-496). 

Adaline (333) was synthesized as described above for euphococcinine [699]. The two-spot ladybird beetle Adalia bipunctata was found to have a considerable investment in defense via its secretion of adaline-rich reflex blood [700]. 

The X-ray determination of the structure of adaline, the closely related defensive alkaloid of the ladybird Adalia bipunctata, defines its structure, but not B. Tursch, D. Daloze, J. M. Pasteels, A. Cravador, J. C. Braekman, C. Hootele, and D. Zimmermann, Bull. Soc. chim. beiges, 1972, 81, 649. 

Coleoptera Cocci nellidae Adalia bipunctata Adaline... 

Outline of the formation of adaline and adalinine, fatty acid-derived defensive compounds of Adalia beetles, The structure A is the same as in Figure 3.26. The compounds from Cryptolaemus montrouzieri are evidently ofrelated origin... 

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