Abstract
AbstractAbout 10,000 sense organs are present on one antenna of a female mantis, Tenodera angustipennis, and nearly 40,000 on that of a male. These are of four kinds: (1) thick‐walled pegs, (2) short thin‐walled pegs, (3) medium length thin‐walled pegs and (4) long thin‐walled pegs. All have the structural characteristics of chemoreceptors. The dendrites of the sensory neurons of the thick‐walled pegs are exposed to the air in an opening at its distal end and those of the thin‐walled pegs terminate at many pores in the surface. The significance of the larger number of sense organs possessed by the male is discussed. No important differences were found between the antenna of Tenodera angustipennis and those of T. aridifolia and T. australasiae.
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