From the roots and epigeal part of Delphinium dictyocarpum D. C., collected in the flowering phase in the outskirts of the village of Topolevka (Djhungarian Ala-Tau), in addition to the bases known previously [1], we have isolated a new diterpene alkaloid -- delectine (I), C27H34O5N2, mp 107-109°C (hexane--acetone). The IR, NMR, and mass spectra of (I) and its saponification product amino alcohol (II, C24H29O7N, mp 167-169°C) and anthranilic acid, methylation of (II) to O,O-dimethyllycoctonine, and acetylation reactions permit delectine to be assigned to the diterpene alkaloids with a lycoctonine skeleton. The positions of functional groups (hydroxy groups including an α-hydroxy at C20, methoxy at C6, N-ethyl, primary amino, ester grouping, aromatic ring) were determined, leading to the proposed structures of delectine (I) and its amino alcohol (II).