Academic Background

Courses Recently Taught

Teaching Philosophy

The most rewarding attribute of my profession is the ability to encourage others to learn more.       

Research Interests

Few things are as interesting to me than the ecology and evolution of the insects.  I am using my entomological and botanical background to investigate insect-host plant interactions, insect systematics, as well as predator-prey relationships.  All of my research to date has centered around scale insects (suborder Coccoidea).  These herbivorous insects are notorious plant parasites, and are typically considered pests; however, several species have beneficial traits and are of commercial value (e.g., Laccifer lacca is used in the production shellac and varnishes).   I also have a keen interest in the mimicking of insects by plants.

Related Links:

ScaleNet: A Database of the Scale Insects of the World
Coccoidea Web Page:  from the USDA's Systematic Entomology Laboratory

Selected Publications

Hendricks, H.J. and M. Kosztarab. 1999.  Revision of the Tribe Serrolecaniini (Homoptera: Pseudococcidae).  Das Tierreich. Walter de Gruyter & Co, Berlin. 213 pp.

Hendricks, H.J. and M.L. Williams.  1992.  Life history of Melanaspis obscura (Homoptera: Diaspididae) infesting pin oak in Alabama.  Ann. Entomol. Soc. Am. 85(4): 452-457.

Williams, M.L and H.J. Hendricks.  1991.  Jumping tree bugs are important natural enemies of obscure scale infesting landscape plantings of pin oak.  Ala. Agric. Exp. Stn. Res. Report Series, Sept 1991 (7): 33.

Hendricks, H.J. and M.L. Williams.  1987.  Obscure scale poses serious problem to landscape plantings of pin oak in Alabama.  Ala. Agric. Exp. Stn. Highlights Agric. Res. 34(4): 8.

Please send comments and suggestions to: hendricks_harlan@colstate.edu
This page was last modified on 05/11/08