This work consists of three parts. Part one deals with the syntheses of a number of common Cerambycidae and bark beetle semiochemicals. Additionally, syntheses for three new suspected Cerambycidae semiochemicals were developed. In part two, the elution order and Kovats retention indices of various bark beetle associated semiochemicals were determined on an enantioselective GC-column. In part three, SPME/GC-MS analyses of bark beetle associated fungi cultivations on terpenes were undertaken to find fungal degradation products with known electrophysical activity to bark beetles. A large number of bark beetle semiochemicals were found, including two bark beetle pheromones.