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#40388
Apical Droplets - Culex quinquefasciatus

Apical Droplets - Culex quinquefasciatus
Vero Beach, Indian River County, Florida, USA
August 31, 2005
This shows the apical droplets that form on Culex eggs, mostly lipid material but containing a volatile pheromone. This pheromone attracts other gravid females to the water to oviposit. The compound was identified as 5R,6S-6-acetoxy-5-hexadecanolide.
http://www.pherobase.com/database/compound/compounds-detail-5R6S-6-acetoxy-5-hexadecanolide.php