Nice roach! 
ohyeah,
Goto www.highend3D.com and under the Maya shaders area there is one that I found! Haven't looked at it yet cause I have no need at the time but if you want a quick shader go there.
I'm not the master texturer (is that a word?) in Maya yet so I use premade ones when I can't make a good one! But look at the shader in the attribute editor and learn from what others have done!
Helps a lot! Hope this helps.
May the force be with you...always!
A Jedi shall not know anger nor hatred nor Love
The only way to live a good life is to act upon your emotions
A warrior is reborn when he has something to protect