Development of Lepidoptera in C.P. Gillette Museum of Arthropod Diversity. Research on insect-plant relationships, speciation, genetics and evolution of specific groups of Lepidoptera.
Opler, Paul A., (2017) "Non-Cordilleran butterfly populations: conspecific or separate species?" Denver Museum of Nature and Science Reports Number 8 6
Opler, Paul A., Scott, James A., (2017) Another endemic butterfly in the Sacramento Mountains of southern New Mexico, with a review of other endemics. Papilio (New Series) 26 18-24.
Opler, Paul A., Scott, James A., (2017) Euchloe hyantis lotta redefinition, and a large range for E. hyantis belioides (Pieridae). Papilio (New Series) 26 9-14.
Opler, Paul A., (2016) "5 species accounts in: The Second Colorado Breeding Bird Atlas" Colorado Bird Atlas Partnership, Colorado Parks and Wildlife
Opler, Paul A., (2016) "The growing diversity of North American butterflies: What can we expecct in the future?" Denver Museum of Nature and Science 5
Opler, Paul A., Cognato, Anthony I., (2016) Phylogenetic analysis supports the recognition of Albuna beutenmulleri Skinner as a speciess distinct from A. pyramidalis Walker (Lepidoptera: Sesiidae). Jounral of the Lepidopterists' Society
Opler, Paul A., (2015) Genetic evaluation of the status of Lange's metalmark, a Federally Endagered butterfly Jounral of Research Development
(2012) "Butterflies of Rocky Mountain National Park" Denver Museum of Nature and Science, Technical Report 2012-6 59-64
(2012) "California oaks and allies as evolutionary and ecological islands for leaf-mining Lepidoptera: host individuals and species populations (abstract)" Program and Proceedings of the International Lepidopterists' Coference, Denver, July 23-29, Denver Museum of Nature and Science, Technical Report 2012-6 31
(2012) "Conservation status of Colorado moths (abstract)" Program and Proceedings of the International Lepidopterists' Conference, Denver, July 23-29, Denver Museum of Nature and Science, Technical Bulletin 2012-6 31
(2012) "Lepidoptera at the C.P. Gillette Museum of Arthropod Diversity, Colorado State University, Ft. Collins: Description and Holdings" Denver Museum of Nature and Science, Technical Report 2012-6 54-58
(2011) A multiplex real-time polymerase chain reaction assay to diagnose Epiphyas postvittana (Lepidoptera: Tortricidae) Jounral of Economic Entomology 104 5 1706-1719
(2011) A new avocado pest in Central America (Lepidoptera: Tortricidae) with a key to Lepidoptera larvae threatening avocados in California Zootaxa 3137 31-45
(2011) Discovery of false codling moth, Thaumatotibia leucotreta (Meyrick) in California Proceedings of the Entomological Socieyty of Washington 113 4
(2011) Discovery of Lobesia botrana ([Denis & Schiffermuller]) in California, an invasive species new to North America (Lepidoptera: Tortricidae) Proceedings of the Entoimological Society of Washington 113 1 14-30
(2011) "Eurytides marcellus, Nymphalis antiopa, Papilio multicaudata, and Zerene eurydice species acounts" Grzimek's Animal Life; Gale/Cengage, Farmington Hills, Mich; Simmons, N, editor
(2011) Patterns of mitochondrial haplotype diversity in the invasive pest Epiphyas postvittana (Lepidoptera: Tortricidae) Journal of Economic Entomology 104 3 920-932
(2011) "The complete book on North American Butterflies" Thunder Bay Press, San Diego, Calif, 192 pp