Purana nebulilinea
Encyclopedia
Purana nebulilinea is a cicada species distributed in Peninsular Malaysia, Sumatra
, Borneo
and nearby smaller islands. Its song consists of a long sequence (around 1 minute) of high pitched sounds with characteristic frequency modulation
pattern and can be repeated many times without interruption
Sumatra
Sumatra is an island in western Indonesia, westernmost of the Sunda Islands. It is the largest island entirely in Indonesia , and the sixth largest island in the world at 473,481 km2 with a population of 50,365,538...
, Borneo
Borneo
Borneo is the third largest island in the world and is located north of Java Island, Indonesia, at the geographic centre of Maritime Southeast Asia....
and nearby smaller islands. Its song consists of a long sequence (around 1 minute) of high pitched sounds with characteristic frequency modulation
Frequency modulation
In telecommunications and signal processing, frequency modulation conveys information over a carrier wave by varying its instantaneous frequency. This contrasts with amplitude modulation, in which the amplitude of the carrier is varied while its frequency remains constant...
pattern and can be repeated many times without interruption