What Is It? #3

This installment returns to peculiar images captured from the biological world. Can you guess what this rather exotic looking specimen is?

A. The thorax (middle body segment) of a flying insect

B. The head of a burrowing insect

C. The skull of a primitive insect eating mammal

D. The seed of a tropical flowering plant

E. A creature that lives at the base of eyelash hair

Image courtesy Matthew Buffington, Univerisity of California Riverside