Subgenual Organs

These are chordotonal organs present in the tibiae of most insects, excluding Thysanura, Hemiptera, Coleoptera, and Diptera. The organ, which comprises between 10 and 40 sen-silla, generally detects vibrations in the substrate though the mechanism by which the organ is stimulated is not known. In a few species, for example, the Madagascar hissing cockroach (Gromphadorhina portentosa), the subgenual organs respond to airborne vibrations. Their peak sensitivity is at 1.8 kHz, which coincides with the species' courtship song.

Beekeeping for Beginners

Beekeeping for Beginners

The information in this book is useful to anyone wanting to start beekeeping as a hobby or a business. It was written for beginners. Those who have never looked into beekeeping, may not understand the meaning of the terminology used by people in the industry. We have tried to overcome the problem by giving explanations. We want you to be able to use this book as a guide in to beekeeping.

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