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In the antenna sensory apparatus of bugs Coreus marginatus, Cimex lectularius , and Rhodnius prolixus sensilla of the four main types are identified: chaetica, trichodea, basiconica, and coeloconica. Chaetoid sensilla are differentiated into two subtypes: sensilla with cogged cuticles and those with smooth ones; trichoid sensilla were divided into long pointed and short ones with blunt tips. In larvae and adults of R. prolixus trichobothria (long filiform hairs) were found on the medial side of pedicellum. The postembryonic changes in the quantitative and qualitative composition of the antenna sensory apparatus were assessed using biometric analysis. The greatest increase of sensory organs was observed upon the nymphal ecdysis from the 5th instar to adult.
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Н. А. Акентьева (2008) studied this question.
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