01298nas a2200133 4500008004100000245007600041210006900117300001000186490000700196520087700203100002401080700001901104856004101123 1977 eng d00aAcoustic Orientation in the Cricket Teleogryllus Oceanicus (Le Guillou)0 aAcoustic Orientation in the Cricket Teleogryllus Oceanicus Le Gu a61-750 v673 a

New information is presented on acoustic orientation in crickets following a comparison between as species with a discontinuous song pattern, Scapsepidus maginatus (Murphet & Zaretsky, 1972) and one with a continuous osng pattern, Teleogrylluys oceanicus. The females acuity for side discrimination is ±10° from the body axis whereas total phonokinetic response shows a greater degree of error. Females can scan their turn angle to target angles beneath 60°. Error is expressed in terms of information loss through the total behavioural sequence. The cricket does not orient while moving, requires no fixed leg position during the stop for effective orientation and can establish source direction on the basis of at least two syllables. Evidence of differential anterioir and posterior tympanic membrane function is suggested.

1 aBailey, Winston, J.1 aThomson, Peter uhttps://bio.acousti.ca/uk/node/17204