Behaviour:
A putative stridulatory apparatus on the mouth- parts of cylindrachetids was described and figured by G ̧nther (1992) and Rentz (1996). It consists of a field of microscopic tubercles arranged in rows on the ventral surface of each mandible and a single row of about seven short ridges on the opposing dorsal surface of the basal segment of each maxillary palpus. G ̧nther noted this apparatus in both sexes. It is now clear that it occurs in all nymphal instars as well. Thus, it is unlikely that the apparatus plays a part in mate-attraction, if in fact it produces sound at all. I detected no stridulatory sounds from sandgropers, even when holding them close to my ear. [1]
References
- . Observations of the biology and inlmature stages of the sandgroper Cylindraustralia kochii (Saussure), with notes on some congeners (Orthoptera: Cylindrachetidae). Records of the Western Australian Museum. 2007;23(3):219. Available at: http://museum.wa.gov.au/research/records-supplements/records/observation-biology-and-immature-stages-sandgroper-cylindraustr.
Taxonomic name: