Ph.D. Student – Evolutionary Biology
B.Sc. 2011, Entomology – University of Delaware
Synopsis. I joined the Franz Lab at ASU as a Ph.D. student in the Evolutionary Biology program in the summer of 2013. I previously completed my B.Sc. in Entomology at the University of Delaware and was employed as a Research Technician with insect paleontologist Dr. David Grimaldi at the American Museum of Natural History, New York. My thesis research focuses on the systematics and evolution of the diverse and primarily southwestern U.S. darkling beetle genus Eleodes Eschscholtz (Coleoptera: Tenebrionidae), funded in part by the NSF project “ARTS: Systematics of the darkling beetle genus Eleodes: Integrating morphology, DNA, and biodiversity informatics to resolve a taxonomically impeded genus” (PI Aaron Smith).
Johnston, M.A. 2016. Redefinition of the Eleodes Eschscholtz subgenera Tricheleodes Blaisdell and Pseudeleodes Blaisdell, with the description of a new species (Coleoptera: Tenebrionidae). (In Review)
Johnston, M.A., Fleming, D., Franz, N.M., Smith, A.D. 2015. Amphidorini LeConte (Coleoptera: Tenebrionidae) of Arizona: Keys and Species Accounts. The Coleopterists Society Monograph 14:27-54. PDF
Johnston, M.A. 2015. A Checklist and New Species of Eleodes Eschscholtz (Coleoptera: Tenebrionidae) Pertaining to the Subgenus Promus Leconte, with a Key to United States Species. The Coleopterists Bulletin 69(1): 11-19. PDF
Grimaldi, D., Johnston, M.A. 2014. The long-tongued Cretaceous scorpionfly Parapolycentropus Grimaldi and Rasnitsyn (Mecoptera, Pseudopolycentropodidae) : new data and interpretations. American Museum Novitates. No. 3793.
One of my favorite aspects of my dissertation research is being in the field and collecting beetles. The material collected is in the process of being digitized and managed as a part of SCAN, and the specimen data can be found here.
I am broadly interested in the diversity of North American tenebrionidae, and enjoy aiding others in specimen identification.