Last week the question was: What are these?
These are adult harlequin bugs. They are members of the stinkbug family and cause damage by inserting their piercing/sucking mouthparts into plant tissue to feed on the sap. They can be pests on a number of brassica crops like collards, kale, mustard, turnips, broccoli, etc. For more information including control, take a look at this publication.
Here is this week’s question: What are these little brown things? Hint: Found on the underside of a squash leaf.