We had a good, early crop of zucchini this year. However, we ended up sharing more than intended with some local critters. This is one of the suspects, discovered in close proximity to the squash plants on the south side of our house.
Margaret consulted A Field Guide to the Plants and Animals of the Middle Rio Grande Bosque and found the identify of the suspect to be the Cottonwood Longhorn Beetle. No mention was made of a preference for tender zucchini, but the proximity is cause for suspicion. I'll have to make a night-time visit to the garden with my flashlight to see if I can detect any collaborators.