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Structures on the antennal flagellum of a katydid, Neoconocephalus ensiger (Orthoptera, Tettigoniidae)
Authors:E H Slifer
Abstract:The long antennal flagellum of Neoconocephalus ensiger is covered with many sharp-tipped hairs that appear to be non-innervated; thick-walled chemoreceptors, that may also have a tactile function; thin-walled chemoreceptors of several kinds and coeloconic chemoreceptors. All of the chemoreceptors are innervated by small groups of neurons. The first flagellar subsegment is unusual in that it bears a small protuberance on its latero-ventral surface. This marks the site of the attachment, internally, of a scoloparium containing about eleven scolopales in which the dendrites of some 23 sensory neurons terminate. The most distal subsegment lacks the scoloparium reported earlier for the grasshopper. No conspicuous difference between the antennae of males and of females was found.
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