Case of the Week 611
This week's lovely case is from Dr. Phillip Heaton. The following was submitted to his laboratory for identification. What is shown here? And what does the red arrow in the first image point to?
Read Dr. Pritt's blog, Parasite Wonders, and submit your answers, comments, and questions. Also, visit her website ParasiteWonders.com, which hosts an archive of classic images from cases Dr. Pritt posted going back to 2007 (in an easy-to-search "A through Z" format) and also offers a flashcard feature.

Answer to Case 611:
Female crab louse, Pthirus pubis, with an egg.