Scent glands Subject

A prominent characteristic of most true bugs is their use of defensive chemicals produced in specialized scent glands, usually found in the abdomen in im-matures, and in the metathorax in adults. However, this pattern is not absolute species that feed on poisonous plants from which they sequester toxic chemical defenses tend to have reduced or modified glands [8,26-28]. Many of these species are also aposematic, vividly advertising their toxicity to would-be predators. The defensive chemistry of bugs has been the subject of a number of reviews [4,6,8,9,12,29,30] and will only be summarized here, with a focus on compounds with interesting or unusual chemistry. 

To examine scent marking responses to odors, we first removed a subject from its cage for 5 min during this time we introduced the flank gland secretion of a donor animal on a glass plate into this cage. This procedure simulates a situation in which another animal scent marks in or near the subject s burrow (Heth, et al., 1998). 

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