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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Stoneflies (Plecoptera) » Small Winter Stoneflies (Capniidae)
Photo#259226
Winter stonefly
Copyright © 2009 Chris Adam

Winter stonefly
Fredericton, York County, New Brunswick, Canada
March 18, 2009
Size: 5mm
I accompanied New Brunswick entomologist Reggie Webster for a noon-hour walk through the snowy woods of the UNB Woodlot. He pointed out some early winter stoneflies (we saw about 5), but said they might be impossible to id. Very little work on this group has been done for NB, and these may be new for the province or even new species.
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Contributed by Chris Adam on 18 March, 2009 - 1:30pm
Last updated 8 April, 2009 - 10:03am

Moved
Moved from Winter Stoneflies.
… Chris Adam, 8 April, 2009 - 10:03am login or register to post comments

Move to Capniidae
Misplaced capniid; long cerci/short wings. (See Dr. Chandler's comments below.)
… Lloyd Gonzales, 8 April, 2009 - 9:56am login or register to post comments

 
The placement in the Taenipte
The placement in the Taenipteryidae was my doing, based on little info and only an overview in Eric Eaton's Field Guide to Insects of NA. My companion in the field (below) said only "winter stonefly'.
… Chris Adam, 8 April, 2009 - 10:03am login or register to post comments

 
Not a problem
Taeniopterygids and capniids are both commonly called "winter stoneflies" (though the newer Stark, et al. common names for these families are "willowflies" and "snowflies" respectively). Capniids can usually be distinguished on sight by the longish cerci, and males often have short wings. Snowflies typically emerge earlier, but emergence often overlaps with the willowflies in late winter/early spring.
… Lloyd Gonzales, 8 April, 2009 - 10:25am login or register to post comments

Try
the "Capniidae of Eastern Canada" by Harper & Hynes, 1971, Canadian Entomologist 49:921-940. Reggie could then broaden his horizons from beetles and butterflies.
… Donald S. Chandler, 18 March, 2009 - 10:08pm login or register to post comments

 
Is this a nymph and not an ad
Is this a nymph and not an adult?
… Chris Adam, 19 March, 2009 - 7:06am login or register to post comments

 
It is an
adult male.
… Donald S. Chandler, 20 March, 2009 - 8:27am login or register to post comments

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