BioStor
 | Classification of Insects. A key to the known families of insects and other terrestrial arthropods. [1st Edition] C T Brues and A L Melander (1932) Bulletin of the Museum of Comparative Zoology 73: 1-672 |
 | Phylogenetic placement of Phaenocephalus Wollaston (Coleoptera: Phaenocephalidae & Phalacridae) J Pakaluk (1991) Proceedings of the Entomological Society of Washington 93: 317-321 |