1. Synopsis of the Mexican taxa of the Loxandrus series (Coleoptera: Carabidae: Pterostichini);Allen;Trans. Am. ent. Soc.,1980
2. Pcricaline Lebiini: notes on classification, a synopsis of the New World genera, and a revision of the genus Phloeoxena Chaudoir (Coleoptera: Carabidae);Ball;Quacst. Entomol.,1975
3. The species of the Neotropical genus Trichopselaphus Chaudoir (Coleoptera: Carabidae: Harpalini): classification, phylogeny and zoogeography;Ball;Quaest. Entomol.,1978
4. The Hypherpes- like taxa of southern Mexico: classification, and evolutionary considerations (Coleoptera: Carabidae: Pterostichus);Ball;Trans. Am. ent. Soc.,1982
5. Nature and formulation of biogeographic hypotheses;Ball;Syst. Zool.,1975