An abdominal stridulation organ in Cyphoderris (Prophalangopsidae) and concerning the systematic classification of the Ensifera (Saltatoria)

Ander, Kjell
Faculty Advisor
sound production of insects , Cyphoderris , stridulatory organ
Abstract (summary)
Ensiferan insects (crickets, katydids, grigs and allies) are well known for rubbing parts of their cuticle together to produce sound: a process called stridulation. In this article Swedish entomologist Kjell Ander describes a novel (at the time) stridulatory apparatus in the great grig, Cyphoderris monstrosa (Prophalangopsidae), a relict ensiferan found in the mountainous regions of western North America. Ander used preserved specimens to predict the sound-producing function of a pair of abdominal file-scraper apparatuses, although he was never able to directly test his proposed mechanism nor did he speculate as to the adaptive significance of the structures. The article concludes with a review of the systematic placement of various higher level taxa within the order Orthoptera, of which Ensifera is one suborder.
Publication Information
This is a translated version of the following article: Ander, K. (1938). Ein abdominales Stridulationsorgan bei Cyphoderris (Prophalangopsidae) und über die systematische Einteilung der Ensiferen (Saltatoria). Opuscula Entomologica, 3, 32-38.
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