BioStor
 | Checklist of the coleopterous insects of Mexico, Cantral America, the West Indies, and South America. Part 5. Richard E Blackwelder (1947) Bulletin of the United States National Museum 185: 765-925 |
 | A revision of North American Cryphalini (Scolytidae, Coleoptera) (1954) University of Kansas Science Bulletin 36: 959-1089 |
 | New synonymy and new species of American bark beetles (Coleoptera: Scolytidae), part 5 (1977) Great Basin Naturalist 37: 383-394 |