G. Lognay et al., ADALININE, A NEW PIPERIDINE ALKALOID FROM THE LADYBIRD BEETLES ADALIA-BIPUNCTATA AND ADALIA-DECEMPUNCTATA, Journal of natural products, 59(5), 1996, pp. 510-511
Adalinine (2), a new piperidine alkaloid, has been isolated from the E
uropean two-spotted ladybird beetle Adalia bipunctata, and its structu
re has been determined by spectroscopic methods. This alkaloid was als
o shown to be present in all the life cycle stages of Adalia bipunctat
a as well as in the adults of a related species, A. decempunctata.