Can you help identify this little guy? I found him on a cement wall in Santa Cruz county California.
Thanks Victor Morris
Your photo looks remarkably like a Spotted Tussock Moth (Lophocampa maculata).
The Caterpillars of the Eastern Forest site describes this caterpillar as being: “Black at either end with 4 or 5 orange abdominal segments. Numerous thin white lashes arise from black segments—these distinguish it from woolly bear, which it superficially resembles. Orange abdominal band broken by red or black middorsal tufts. Food: prefers willows and poplars but will consume most any shrub or tree. Caterpillar: July to September; 1 generation.”