Research Interests:

My main research interests are in the systematics and evolution of mites. Within the general area I have migrated from trying to understand the quite specific host associations in sarcoptid mange mites, to biogeographical patterns in ticks, to basal systematics of the entire order Parasitiformes. I try to approach these questions from several directions, combining morphological and molecular data sets in order to develop well corroborated hypotheses. More recently I have started some projects on diversity of soil Mesostigmata in Ohio as well as in Southern Mexico and Belize.

In addition I am also co-organizer of the Acarology Summer Program, one of the world's premier training programs in systematic acarology.

Graduate Student Advisees and general topic of study:

• Cheol-Min Kim, Family level systematics and evolution of host associations in the Trigynaspida (Mesostigmata). Ph.D. completed, Fall 2001
• Beverly S. Gerdeman, Ontogeny, life-history, and biology of the family Heterozerconidae (Mesostigmata). Ph.D. completed, Winter 2002
• Fahad Al Atawi, A revision of the mite genus Schizostethus (Mesostigmata: Parasitidae). M.Sc. completed, Summer 2001.

Klompen, J. S. H. 2000. Prelarva and larva of Opilioacarus (Neocarus) texanus (Chamberlin & Mulaik) (Acari: Opilioacarida) with notes on the patterns of setae and lyrifissures. J. Nat. Hist. 34: 1977-1992.

Klompen, J. S. H., W. C. Black, IV, J. E. Keirans and D. E. Norris. 2000. Systematics and biogeography of hard ticks, a total evidence approach. Cladistics 16: 79-102.

Klompen, H. and D. Grimaldi. 2001. First Mesozoic record of a parasitiform mite: a larval argasid tick in Cretaceous amber (Acari: Ixodida: Argasidae). Ann. Entomol. Soc. Am. 94: 10-15.

Kim, C.-M. and H. Klompen. A new genus and species of Paramegistidae (Mesostigmata: Trigynaspida) asociated with millipedes from Mexico. Acarologia. In press.

Klompen, H., S. J. Dobson and S. C. Barker. A new subfamily, Bothriocrotoninae n. subfam., for the genus Bothriocroton Keirans, King & Sharrad, 1994 n. status (Ixodida: Ixodidae), and synonymy of Aponomma. Neumann, 1899 with Amblyomma Koch, 1844. Syst. Parasitol. In press.