Mechanics of the transduction of sound in the tympanal organ of adults and larvae of locusts

1985 ◽  
Vol 157 (5) ◽  
pp. 619-629 ◽  
Author(s):  
Joachim Breckow ◽  
Martin Sippel
Keyword(s):  
Tympanal Organ

The tympanal trachea as an integral part of the ear in acripeza reticulata guerin (orthoptera, tettigonioidea)

1974 ◽  
Vol 29 (9-10) ◽  
pp. 653-655 ◽  
Author(s):  
Harald Nocke
Keyword(s):  
Functional Role ◽  
Directional Sensitivity ◽  
Tympanal Organ

Abstract The functional role of the large trachea which runs from a spiracle in the thorax down the leg (tympanal trachea) was analysed in relation to the tympanal organ. The tympanal trachea not only tunes the tympanal organ to a certain frequency (Fig. 1) but is important for the directional sense of hearing in the whole animal. The directional sensitivity of the ear depends only on the relative positions of the spiracle of the tympanal trachea and the direction of sound (Fig. 2), irrespective of the foreleg walking position

Michaelshaffera gen. n. - a pyraloid taxon lacking an abdominal tympanal organ (Lepidoptera: Pyralidae)

1997 ◽  
Vol 28 (4) ◽  
pp. 391-402 ◽  
Author(s):  
M. Alma Solis
Keyword(s):  
New Species ◽  
South America ◽  
Type Species ◽  
French Guiana ◽  
Morphological Characters ◽  
New Combination ◽  
Immature Stages ◽  
Tympanal Organ ◽  
Lepidoptera Pyralidae ◽  
A New Species

AbstractMichaelshaffera gen. n. is comprised of two species, M. maidoa (Schaus), new combination, the type species, described from French Guiana, and a new species, M. beckeri, here described from South America. The assignment of taxa to the Pyraloidea is based primarily on characters of the tympanal organs and immature stages. Michaelshaffera lacks a tympanal organ and the immatures are unknown. The rationale for the placement of this genus in the Pyraloidea and lower hierarchical ranks is discussed based on other morphological characters.

scholarly journals Hearing in insects: The nature of the response of certain receptors to auditory stimuli

1936 ◽  
Vol 121 (820) ◽  
pp. 18-27 ◽  
Keyword(s):  
Direct Contact ◽  
Auditory Stimuli ◽  
Wire Electrode ◽  
Tympanal Organ ◽  
Fine Wire ◽  
Operational Technique ◽  
Hair Sensilla ◽  
Tympanic Organ ◽  
Tactile Receptor ◽  
Return Lead

The auditory receptors of the Orthoptera include tympanal organs and hair sensilla. The former have long been recognized as subserving an aural function, but the latter have, in this group, only recently been shown to respond to auditory stimuli (Pumphrey and Rawdon-Smith, 1936). Wever and Bray (1933), using an amplifier and telephones, have attempted to analyse the nervous response from the tympanal organs of the foreleg of crickets ( Lyogryllus campestris ). Their operational technique may be shortly described. Without previous dissection, a fine wire electrode was introduced into the leg of the experimental animal, the return lead consisting of a pad applied to the animal’s body. Owing to the fact that no direct contact was certainly made with the tympanal nerve and that the central ends of the leg nerves were not severed, responses of several kinds were obtained. Of these, an asynchronous response, described as producing a shushing noise in the telephones, was thought to arise from the tympanal organ; but no certain indication was given that this response was not partly or wholly of tactile origin. This point is of importance since, as we shall show in this paper, a response from certain types of tactile receptor may be readily elicited by an auditory stimulus. Similar criticisms apply to the recent results of Wever (1935) on the tympanic organ of the grasshopper (Arphea sulphurea).

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