Beetle systematics. Staphylinid beetles are one of the greatest successes of evolution.
With more than 55,000 described species, they are found virtually everywhere and have
a plethora of forms and evolutionary novelties. Even though staphylinid beetles are
numerous, they have received relatively little attention. I am involved in several
research projects dealing with both systematic questions (description of new species,
phylogenetic analyses and monographs) and broader evolutionary questions such as the
evolution of coloration, of eye size and the diversification of major lineages. Current project include: a) Phylogenetic revision of the subtribe Xanthopygina. b) Species-level revisions of Xanthopygina. I currently working on the genus Trigonopselaphus and future projects include the genera Xanthopygus, Oligotergus, Gastrisus, Phanolinus, Plociopterus and Styngetus. The overall goal of this project is to produce species-level revisions for all neotropical Xanthopygina genera.
Tennessee Valley Beetle Fauna. Recently we have started a project to catalogue and identify the beetles in the TN valley region and the Cumberland Plateau. Simple questions such as: "How many species of beetles are there in TN?" or "What is the conservation status of beetles in TN?" are without an answer.
Fossil Insects. I am interested in describing fossil insects and investigating how these discoveries affect the phylogenetic relationships of extant taxa. Past projects include the description of Oxytelinae from Dominican amber and of several enigmatic Scydmaeninae from the early Cretaceous. I am currently describing the Staphylinidae fauna from Dominican amber and I plan to continue my paleoentomological studies with several new enigmatic genera of Staphylinidae from Burmese amber and the Green River Formation that will help us delineate the tribes and eventually understand the paleobiogeographic history of beetles.
2015-2016 Ruth S. Holmberg Grant for Faculty Excellence, University of Tennessee at Chattanooga, Exploring beetle diversity in the Southeast: integrating undergraduate research and public engagement.
2014-2015 Research and Creative Activity Award, College of Arts and Sciences, University of Tennessee at Chattanooga Evolution and systematics of ant-loving xanthopygine rove beetles.
2013-2015 NSF: DBI-1337530: Acquisition of growth chambers for global change biology research and research training at the University of Tennessee at Chattanooga, $342,945.00, [PI: J. Boyd , other Co-PIs: H. Klug, J. Shaw, T. Wilson].
2009-2012 NSF DBI-0922941 Acquisition of a Microscopy Core System ($184,188). [PI: E. Carver, other Co-PIs: C. Nelson, J. Kim, H. Spratt].
2008-2010 National Geographic Committee for Research and Exploration: Exploring the beetle biodiversity of the California Channel Islands. $19,043. [PI, with M. Caterino co-PI].
2007-2011 NSF DEB-0741475 Collaborative Research: Phylogenetic reclassification and generic revision of the rove beetle tribe Staphylinini (Insecta: Coleoptera: Staphylinidae).($235,258) [PI, M. S. Engel co-PI].
Chani-Posse, M. R., A. J. Brunke, S. Chatzimanolis, H. Schillhammer, A. Solodovnikov. 2018. Phylogeny of the hyper-diverse Philonthina rove beetles with implications for classification of the tribe Staphylinini (Coleoptera: Staphylinidae). Cladistics 38: 1–40.
Chatzimanolis, S. 2017. An update to the diagnosis and key of Ocyolinus Sharp, with the inclusion of Torobus principalis (Bernhauer) (Staphylinidae: Staphylininae: Staphylinini). The Coleopterists Bulletin 71(4): 805–809.
Brunke, A. J., S. Chatzimanolis, B. D. Metscher, K. Wolf-Schwenninger, A. Solodovnikov.2017. Dispersal of thermophilic beetles across the intercontinental Arctic forest belt during the early Eocene. Scientific Reports 7: 12972.
Chatzimanolis, S. 2017. And then there were six: a revision of the genus Phanolinopsis Scheerpeltz (Coleoptera: Staphylinidae: Staphylininae). Zootaxa 4323(1): 49–67.
Brunke, A. J., H. Schillhammer and S. Chatzimanolis. 2017. The first fossil rove beetle from the middle Eocene Kishenehn formation (North America) provides evidence for ancient Eocene relicts within the hyperdiverse Staphylinini (Coleoptera: Staphylinidae: Staphylininae). Journal of Systematic Palaentology 15(12):1015–1025.