1998

• Congdon, C., & Collins, S., 1998. Kielland’s butterflies of Tanzania. Supplement. African Butterfly Research Institute & Union des Entomologistes Belges, Nairobi & Tervuren, 143 pp. Reference page. 

2007

• Rydon, A.H.B., Congdon, T.C.E. & Collins, S.C. 2007. A new subspecies of Charaxes contrarius van Someren, 1969 (Lepodptera: Nymphalidae: Charaxinae) from Tanzania Metamorphosis 18(4): 144-150. Reference page. 

2012

• Larsen, T.B.; Congdon, T.C.E. 2012: The genus Ampittia in Africa with the description of a new species (Hesperiinae; Aeromachini) and three new species in the genera Andronymus and Chondrolepis (Hesperiinae, incertae sedis) (Lepidoptera; Hesperiidae). Zootaxa 3322: 49–62. Preview. Reference page. 

2014

• Collins, S.C., Congdon, T.C.E., Henning, G.A., Larsen, T.B. & Williams, M.C. 2014a: A review of d’Abrera’s Butterflies of the Afrotropical Region – Part III (second edition), 2009 – Part 3 (Theclinae, Polyommatinae and Riodinidae). Metamorphosis, 25(2): 109–122. full article (PDF) Reference page. 

2015

• Cock, M.J.W., Congdon,T.C.E. & Collins, S.C. 2015: Observations on the Biology of Afrotropical Hesperiidae (Lepidoptera). Part 8. Hesperiinae incertae sedis: Dracaena Feeders. Zootaxa 3985(3): 301–348. DOI: 10.11646/zootaxa.3985.3.1 . Preview (PDF) Reference page. 

2016

• Cock, M.J.W., Congdon, T.C.E. & Collins, S.C. 2016. Observations on the biology of Afrotropical Hesperiidae (Lepidoptera). Part 9. Hesperiinae incertae sedis: Zingiberales feeders, genera of unknown biology and an overview of the Hesperiinae incertae sedis. Zootaxa 4066(3): 201–247. DOI: 10.11646/zootaxa.4066.3.1 . Reference page. 

2017

• Cock, M.J.W. & Congdon, T.C.E. 2017. Observations on the Biology of Afrotropical Hesperiidae (Lepidoptera) with particular reference to Kenya. Part 11. Heteropterinae. Zootaxa 4226(4): 487–508. DOI: 10.11646/zootaxa.4226.4.3 . Reference page. 

• Cock, M.J.W., Congdon, T.C.E. & Collins, S.C. 2017. Observations on the biology of Afrotropical Hesperiidae (Lepidoptera). Part 12. New information and corrections. Zootaxa 4312(3): 471–496. DOI: 10.11646/zootaxa.4312.3.4 . Reference page. 

• Collins, S.C., Congdon, T.C.E. & Bampton, I. 2017. Review of the Charaxes gallagheri complex resulting in two new species and undescribed morphs of Charaxes gallagheri van Son, 1962 (Lepidoptera, Nymphalidae, Charaxinae). Entomologia Africana 22(1): 19-30. Reference page.