ML 148007

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Melampsalta exulis  

Age/Sex
Identification
Solicitation
Behavior
Note

 

100%

Sight

 

Natural
 

Reproduction

 

Melampsalta exulis. Sat on canvas tent wall.  

William V Ward
17 Jan 1967 at 08:55

    Geography
  • New Zealand
    Locality
  • Kermadec Islands; Raoul Island; Low Flat Base Camp
    Latitude/Longitude
  • -29.246261   -177.926963
    Elevation
  • 10 meters
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • MAGNEMITE 610E
    Microphones
  • Altec 688A
    Accessories
    Equipment Note
  • 2-transister, grounded emitter, battery operated pre-amplifer.

Identification by Dr. Watt

Low Flat is old pasture adjacent to North Beach but separated by sand hills, surrounded by groves of large, spreading Pohutkawa (Metrosideros kermadecensis) trees. These green cicadas lived in the trees and elsewhere on Raoul. This morning the sun came out briefly after foggy, damp weather and a storm in which 5" of rain fell. Everything was sopping wet, and and started to steam and dry out. Cicadas could be heard (these are very faint). Two males appeared on the sunny canvas wall of a tent. Dr. Watt held the mirophone progressivly closer to a calling insect. To the human ear, this cicada has a high-frequency note; but when the ear is close, low frequency notes can be heard. On playback, the low-frequency notes were emphasized. This was corrected by copying the original through a 1.5 kc high-pass filter, and turning up the amplifier's treble control. *Department of Scientific and Industrial Research, Nelson, New Zealand.

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