[The effect of farnesyl methyl ether on the haemolymph protein pattern inEphestia kühniella Z.]

The pattern of development of haemolymph proteins in the last larval stage of Ephestia shows two characteristic features: 1. A new band (fraction 3) makes its appearance during the feeding period of the larva, 2. In the prepupal stage another protein (fraction 2) disappeares from the haemolymph. but it is accumulated in the fat body. On continuous oral administration of farnesyl methyl ether most of the last stage larvae grow to abnormal sizes without any additional moult. The appearance of fraction 3 in the haemolymph is not inhibited, but reduction of fraction 2 in the blood and its corresponding accumulation in the fat body are not observed.