http://www.customflys.com/images/chocol ... Larva2.jpg

http://www.customflys.com/images/chocol ... Larva1.jpg

These should help you out. If you look very close at the insect you will probably notice that it is actually segmented with two colors one being a dark oilve...may appear black. Use DMC thread (Embroidy thread) available at fabric shops and Wal-mart sewing section. Comes in numerous colors. This is usually 5 or 6 strands wrapped into one. Cut a piece of thread off and select out one small strand of each color.

Have a nice day,
John G.