I have seen both colo potato beetle and false colo beetle here...but they are about 1/2", not 1/4". They also have many more stripes. For example, this page
http://www.omafra.gov.on.ca/IPM/engl...adobeetle.html
I like this part-
Often Confused With
This is an insect that is never confused with any other pest.
This little guy is about the size of a striped cucumber beetle, but not a fast crawler and quick flier like cuke beetle.
A couple weeks ago I caught a couple false colo beetles in my home garden and killed their eggs, and saw one regular colo beetle at another garden this year. This guy does not resemble them or any pics of them I have ever seen.