largest one was 1cm long, yellow-golden bodies and black spikes all around the body. There were smaller ones about 6mm long. They were on the leaves of my squash/zucchini plant's leaves.
Food The insect and its spiny larvae eat the leaves of squash, cantaloupe, and other cucurbits. An unusual characteristic of this insect is that it circles the leaf area in which it is going to feed. Remarks Epilachna borealis pupae utilize an interesting chemical defense mechanism consisting of oily droplets at the tips of glandular hairs that coat the beetle. The oily secretion is especially deterrent against ants. -- bug guide.net