1964

• Johns, P.M. 1964. Insects of Campbell Island. Chilopoda, Diplopoda (preliminary note on the Myriapoda of the New Zealand subantarctic islands). Pacific insects monograph 7: 170–172. Full article on BUGZ. Reference page. 

1966

• Johns, P.M. 1966: The cockroaches of New Zealand. Records of the Canterbury Museum 8(2): 93–136. Full article (PDF) on BUGZ Reference page. 

1970

• Johns, P.M. 1970. New genera of New Zealand Dalodesmidae (Diplopoda). Transactions of the Royal Society of New Zealand, biological sciences 12(20): 217–237. BUGZ Reference page. 

1974

• Johns, P.M. 1974: Arthropoda of the subantarctic islands of New Zealand (1) Coleoptera: Carabidae Southern New Zealand, Patagonian, and Falkland Islands insular Carabidae. Journal of the Royal Society of New Zealand 4(3): 283–302. DOI: 10.1080/03036758.1974.10419396 Reference page. 

1997

• Johns, P.M. 1997. The Gondwanaland weta: family Anostostomatidae (formerly in Stenopelmatidae, Henicidae or Mimnermidae): nomenclatural problems, world checklist, new genera and species. Journal of Orthoptera research, (6): 125–138. DOI: 10.2307/3503546 JSTOR . Reference page. 

1998

• Nicholls, D.C., Urquhart, E.M., Ward, J.B. & Johns, P.M. 1998. A list of insect primary types held in Canterbury Museum, Christchurch, New Zealand. Records of the Canterbury Museum 12 (2): 1–43. [Publication date: 'December 1998', sourced from first page of article]

2003

• Johns, P.M. 2003. New species of Holcaspis and others of conservation interest, and a species guide (Coleoptera: Carabidae). Records of the Canterbury Museum 17: 7–16. Reference page. 

2007

• Johns, P.M. 2007. New genera and species of rare New Zealand endemic carabids. (Coleoptera: Carabidae). Privately published: Christchurch, New Zealand. PDF. Reference page. 

2009

• Johns, P.M., Newman, L.J., Holleman, J.J., Dawson, E.W., Sterrer, W., Allison, F.R., Diggles, B.K., Andrews, J.R.H., Hine, P.M., McKenna, P.B. Poulin, R. 2009. 5. Platyhelminthes: flatworms, tapeworms, flukes. pp. 102–128 in Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume 1. Kingdom Animalia. Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch, New Zealand.
• Korsós, Z. & Johns, P.M. 2009. Introduction to the taxonomy of Iulomorphidae of New Zealand, with descriptions of two new species of Eumastigonus Chamberlin, 1920 (Diplopoda: Spirostreptida: Epinannolenidea). Zootaxa 2065: 1–24. Abstract & excerpt (PDF).

2010

• Johns, P.M. 2010: Migadopini (Coleoptera: Carabidae: Migadopinae) of New Zealand. Records of the Canterbury Museum 24: 39–63. full volume (PDF) Reference page. 
• Johns, P.M. 2010: 7. Phylum Arthropoda Myriapoda: centipedes, millipedes, pauropods, and symphylans. Pp. 90-97 in: Gordon, D.P. (ed.) 2010. New Zealand inventory of biodiversity. Volume 2. Kingdom Animalia. Chaetognatha, Ecdysozoa, ichnofossils. Canterbury University Press, Christchurch, New Zealand. Reference page.  Reference page. 

{{Chapter 9 in ISBN 978-1-87725793-3}}

2013

• Fuller, L., Johns, P.M. & Ewers, R.M. 2013. Assessment of protected area coverage of threatened ground beetles (Coleoptera: Carabidae): a new analysis for New Zealand. New Zealand Journal of Ecology 37(2): 184–192. PDF. Reference page. 

2015

• Hemp, C. & Johns, P.M. 2015. Libanasa kilomeni, a new species of East African Lutosinae (Orthoptera: Anostostomatidae). Zootaxa 4032(4): 435–443. DOI: 10.11646/zootaxa.4032.4.8 Preview (PDF). Reference page. 
• Johns, P.M. & Hemp, C. 2015. Redescription of Libanasa brachyura Karny, 1928. (Orthoptera: Anostostomatidae: ?Lutosinae) from Tanzania and problems at the subfamily level. Zootaxa 3946(1): 113–124. DOI: 10.11646/zootaxa.3946.1.5 Preview (PDF). Reference page.