Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Information about the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


TaxonomyBrowseInfoImagesLinksBooksData
Photo#1200793
Sheep Nasal Bot Fly - Oestrus ovis

Sheep Nasal Bot Fly - Oestrus ovis
California, USA
Size: 1.25 mm
This is the first instar larva of the sheep nasal bot fly, Oestrus ovis. It was collected from the eye of a human patient in California (other information not available). Oestrus ovis presents as 1st instar larvae in the human host, usually manifesting as ophthalmomyiasis (ocular myiasis), rarely upper respiratory infection.

I have had this image for a while, but it was used for proficiency testing, so I had to wait until testing was completed before I could load to BugGuide.