Abstract
1.1. Phospholipid and fatty acid composition of Trogoderma granarium was investigated during its development. A study on the biosynthesis of fatty acids was also carried.2.2. Phosphatidyl ethanolamine, phophatidyl choline, sphingomyelin, phosphatidyl inositol, phosphatidyl serine and polyglyceryl phosphatide were generally detected in all developmental stages, except in the fourth and fifth instars. Phosphatidyl ethanolamine and phosphatidyl choline accounted for up to 75 per cent of the total phospholipids. Lysophosphatides were not detected.3.3. Oleic and palmitic acids were the most abundant fatty acids forming about 40 and 30 per cent of the total respectively.4.4. Fatty acid composition of adult females changed with time. Oleic acid was the dominant fatty acid in 1-day-old adults which was replaced by palmitic acid from the second day onwards.5.5. Insects grown on a lipid-free diet, except cholesterol, were able to synthesize oleic, palmitic, palmitoleic, stearic and myristic acids. Fatty acids with two double bonds or more were not synthesized.
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