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Madagascan giant hissing roach

Madagascan giant hissing roach
Photo Information
Copyright: Gary Larsen (gelarsen) Silver Star Critiquer/Silver Workshop Editor/Silver Note Writer [C: 24 W: 46 N: 33] (124)
Genre: Animals
Medium: Color
Date Taken: 2008-11-21
Categories: Insects
Camera: Nikon D70, Sigma 24-70mm F2.8 EX DG AF, B+W 82mm 010 UV-Haze
Exposure: f/10.0, 1/30 seconds
Photo Version: Original Version
Date Submitted: 2009-01-05 20:49
Viewed: 3233
Points: 2
[Note Guidelines] Photographer's Note
The Madagascan giant hissing roach (Gromphadorhina portentosa) is a large (adults, 2-3 inches long and 1 inch wide), wingless member of the cockroach family. This insect is native to the island of Madagascar, off the eastern coast of Africa, where it appears to play the ecological role of scavenger on or near rotten logs in savannah areas. The Madagascan giant hissing roach is notable for its unique ability to produce an audible hiss. This sound is produced by pushing air forcefully through a pair of modified spiracles (openings in the abdomen of insects that are normally used for breathing). They also use hissing as a means of communication. Hissing in response to a disturbance may signal the presence of danger to other roaches. Adult male roaches hiss during aggressive encounters (defending territories against other males), and during courtship and mating. Females and late-stage nymphs hiss only when they are disturbed or threatened.

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  • tuslaw Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2754 W: 282 N: 4931] (19883)
  • [2009-01-06 19:50]

Excellent DOF and sharpness Gary!!
These guys look like they carry their own armor plating with them wherever they go. Great composition and POV.....good use of lighting.
The coloration seems to have a slight yellowish cast to it, but I suppose that's due to the lighting that was available at the time. Well done!! TFS. Very informative notes!!

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