Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Upcoming Events

Discussion of 2018 gathering

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

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

Fly sexing

I got a picture of the tail end of a crane fly recently. Can crane flies, like dragonflies, be sexed by looking at the tip of the abdomen? Or do they all have the same parts.

Crane fly sexing
Yes. "Some large sized adult crane flies can be easily sexed in the field. The outline of the male caudal abdominal segments is expanded and round. In contrast the female has a tapering abdomen that terminates with an acute ovipositor. In addition, they can also be sexed by their flight pattern in the air. The males have an erratic flight pattern of undulations and spiral rotations. Females maintain a more direct, steady and straight flight path." See article with pictures here

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