2015

• Boyle, J.H., Kaliszewska, Z.A., Espeland, M., Suderman, T.R., Fleming, J., Heath, A. & Pierce, N.E. 2014 (Online) 2015 (Print). Phylogeny of the Aphnaeinae: myrmecophilous African butterflies with carnivorous and herbivorous life histories. Systematic entomology 40(1): 169–182. DOI: 10.1111/syen.12098 . Reference page. 

• Nakahari, S., Janzen, D.H., Hallwachs, W. & Espeland, M. 2015. Description of a new genus for Euptychia hilara (C. Felder & R. Felder, 1867) (Lepidoptera: Nymphalidae: Satyrinae). Zootaxa 4012(3): 525–541. DOI: 10.11646/zootaxa.4012.3.7 . Preview (PDF) Reference page. 

• Neild, A.F.E., Nakahara, S., Zacca, T., Fratello, S., Lamas, G., le Crom, J-F., Dolibaina, D.R., Dias, F.M.S., Casagrande, M.M., Mielke, O.H.H. & Espeland, M. 2015. Two new species of Euptychia Hübner, 1818 from the upper Amazon basin (Lepidoptera, Nymphalidae, Satyrinae). ZooKeys 541: 87–108. DOI: 10.3897/zookeys.541.6297 Full article Reference page. 

2018

• Espeland, M., Breinholt, J.W., Willmott, K.R., Warren, A.D., Vila, R., Toussaint, E.F.A., Maunsell, S.C., Aduse-Poku, K., Talavera, G., Eastwood, R., Jarzyna, M.A., Guralnick, R., Lohman, D.J., Pierce, N.E. & Kawahara, A.Y., 2018. A Comprehensive and Dated Phylogenomic Analysis of Butterflies. Current Biology 28, 1–9, Elsevier Ltd. DOI: 10.1016/j.cub.2018.01.061 Reference page. 

• Nakahara, S., Zacca, T., Huerta, B., Neild, A.F.E., Hall, J.P.W., Lamas, G., Holian, L.A., Espeland, M. & Willmott, K.R. 2018: Remarkable sexual dimorphism, rarity and cryptic species: a revision of the ‘aegrota species group’ of the Neotropical butterfly genus Caeruleuptychia Forster, 1964 with the description of three new species (Lepidoptera, Nymphalidae, Satyrinae). Insect Systematics & Evolution 49(2): 130–182. Reference page. 

• Nakahara, S., Willmott, K.R., Mielke, O.H.H., Schwartz, J., Zacca, T., Espeland, M. & Lamas, G. 2018a: Seven new taxa from the butterfly subtribe Euptychiina (Lepidoptera: Nymphalidae: Satyrinae) with revisional notes on Harjesia Forster, 1964 and Pseudeuptychia Forster, 1964. Insecta Mundi 0639: 1–38. Reference page. 

• Willmott, K.R., Lamas, G., Radford, J., Marín, M.A., Nakahara, S., Espeland, M., Xiao, L. & Hall, J.P.W. 2018. A distinctive new species of cloud forest Euptychiina (Lepidoptera: Nymphalidae: Satyrinae) from Ecuador and Peru. Tropical Lepidoptera Research 28(1): 39-45. full article (PDF). Reference page. 

2019

• Nakahara, S., Lamas, G., Tyler, S., Marín, M.A., Huertas, B., Willmott, K.R., Mielke, O.H.H. & Espeland, M. 2019: A revision of the new genus Amiga Nakahara, Willmott & Espeland, gen. n., described for Papilio arnaca Fabricius, 1776 (Lepidoptera, Nymphalidae, Satyrinae). ZooKeys 821: 85–152. Reference page. 

• Willmott, K.R., Marín, M.A., Nakahara, S., Pomerantz, T., Lamas, G., Huertas, B., Espeland, M., Xiao, L., Hall, J.P.W., Willmott, J.I.R. & Freitas, A.V.L. 2019. A revision of the new Andean butterfly genus Optimandes Marín, Nakahara & Willmott, n. gen., with the description of a new species (Nymphalidae: Satyrinae: Euptychiina). Tropical Lepidoptera Research 29(1): 29-44. Online. Reference page. .