Head of larva of Catocala habilis.

Head of larva of Catocala habilis.
Photographer: Beutenm├╝ller, William

From Barnes, W. and J.H. Mcdunnough. 1918. Illustrations of the North American species of the genus Catocala. Memoirs of the American Museum of Natural History;n.s., vol. 3, pt. 1. DOI:http://dx.doi.org/10.5962/bhl.title.57639

 

Source: http://biodiversitylibrary.org/page/38534392