Ceroplastes albolineatus

Sesterterpenoids constitute a rather small group of 45 compounds belonging to eight skeletal types. Geranylfarnesyl pyrophosphate is considered as their biosynthetic precursor, and this is supported by experimental evidence. Geranylfarnesol (492) itself has been isolated from the wax of the insect Ceroplastes albolineatus. A comprehensive review of sesterterpenes was published in 1977 (111). 

Figure 7.4 Sesterterpenesfrom Ceroplastes albolineatus, homopteran scale insects. The mechanism of formation is only conjecture...

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