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This was one of five scanning electron microscopic (SEM) images (PHIL# 9243 – 9247), magnified at successively higher values, which focused on the head region of a female body louse, Pediculus humanus var. corporis from a ventral perspective. At a magnification of 76X, this SEM revealed some of the insect’s exoskeletal morphology exhibited on its cephalic, thoracic, and proximal abdominal regions. Of interest is the jointed configuration of its six extremities, from which it derived its classification in the phylum of Arthropoda, i.e., Arthro from "joint”, and poda from "leg"). Also note the sensorial “hairs” known as “setae, which really aren’t hairs at all, but chitinous exoskeletal extensions.
High Resolution: Click here for hi-resolution image (2.55 MB)
Content Providers(s):CDC/ Joseph Strycharz, Ph.D.; Kyong Sup Yoon, Ph.D.; Frank Collins, Ph.D.
Creation Date:2006
Photo Credit:Janice Haney Carr
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.