Entomology Staff


Jon Gelhaus

Dr. Jon Gelhaus
Curator & Chair


Dr. Jon Gelhaus, Curator of Entomology, has expertise in the systematics, biogeography and ecology of worldwide Tipuloidea (crane flies) and the historical biogeography of western North America, particularly desert regions. He is also the lead PI for the Mongolian Aquatic Insect Survey.

Temporary Faculty Profile Picture

Dr. Daniel Otte
Curator Emeritus


Dr. Daniel Otte specializes in the taxonomy, systematics, biogeography, and behavior of worldwide Orthoptera (grasshoppers and crickets), especially for Africa, the South Pacific, Australia and the U.S.

Temporary Faculty Profile Picture

Dr. Alain Maasri
Assistant Research Professor


Dr. Maasri, who has an interest in the ecology of aquatic insect and their potential as environmental biomonitors, is participating in the Mongolian Aquatic Insect Survey.

Jason Weintraub

Jason Weintraub
Collection Manager


Jason is responsible for care and maintenance of the Entomology Collection. He specializes in systematics and evolution of the Lepidoptera, particularly moths in the families Callidulidae and Geometridae. Ongoing research interests include studies of lepidopteran phylogeography, revisionary taxonomy, and conservation biology, as well as the evolutionary ecology of fern-feeding moths.
Jason has extensive entomological field experience throughout North America, as well as parts of the Caribbean, South America, Europe, Africa, Asia, and Australia. Current field work has focused on enhancing the Academy's collection of Southeast Asian moths.

Greg Cowper

Greg Cowper
Curatorial Assistant



Isa Betancourt
Curatorial Assistant


Part Time Staff

Lois Ottman, Collection Assistant
Dominique Galluscio, Drexel Co-op
Sarah Pellecchia, Drexel Co-op
Thomas Sims, Work-study student

Research Associates

Dr. Sigitas Podenas, Vilnius University Stephen C. Mason, Jr. Dr. Virginijia Podeniene, Vilnius University
Dr. Joaquin Bueno-Soria, UNAM, Mexico City (retired)
Dr. Chen Young, Carnegie Museum of Natural History (retired)
Jane Earle, Mechanicsburg, PA
Prof. Jamie Cromartie, Stockton University
Prof. Charles Bartlett, University of Delaware
Dr. Boldgiv Bazartseren, National University of Mongolia
Esteban Gutierrez, National Museum of Cuba
Dr. JoVonn Hill, Mississippi State University
Dr. Katja Seltmann, University of California at Santa Barbara
Dr. John S. LaPolla, Towson University
Dr. Lauren Spearman, Towson University & Smithsonian Inst.
Dr. Yan Li, Shenyang Agricultural University
Lawrence Henderson
Vaughn Shirey, University of Helsinki

Graduate Students

Bolortsetseg Erdenee
Stephen C. Mason, Jr.
Robert Conrow

Visiting Researchers & Collaborators

Dr. Qifei Liu
Daichi Kato


Amy Caufmann
Amy Diercks
Neva Guido
Adam Knapp
Thomas Lurz
Dennis Winters