On the Sensitivity of the Chemoreceptors on the Antenna and Fore-Tarsus of the Honey-Bee, Apis Mellifica L

Abstract

1. Threshold experiments on the contact chemoreceptors show that, taking the extension of the proboscis as the response, the bee responds when a solution of saccharose of an average strength of M/12 comes into contact with the antenna. A strength of M/1 is required to elicit a response from the fore-tarsus. 2. Amputation of the antenna does not impair the normality of the bee in respect of its gustatory reactions. 3. By strictly controlling the conditions of the environment of the experiment and by using a modified type of olfactometer, results are obtained showing a significant attraction to hive wax. 4. Amputation of the antennae results in a complete loss of olfactory recognition of the wax, and it is concluded that the antennae are the seat of all the olfactory organs which perceive mild odours.