BioStor
 | The Lygaeidae of the Galápagos Islands (Hemiptera: Heteroptera) Peter D Asklock (1972) Proceedings of the California Academy of Sciences 39: 87-103 |
 | Cytotaxonomy of the Lygaeidae (Hemiptera-Heteroptera) N Ueshima and P D Ashlock (1980) University of Kansas Science Bulletin 51: 717-801 |