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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Symphyta" - Sawflies, Horntails, and Wood Wasps » Common Sawflies (Tenthredinidae) » Nematinae » Willow Sawflies and allies (Nematini) » Euura » Pontania (Euura Pontania)
Photo#388846
Willow Leaf Gall Sawfly? - Euura
Copyright © 2010 Peter Bryant

Willow Leaf Gall Sawfly? - Euura
Laguna Beach, Orange County, California, USA
April 25, 2010
Size: ~8mm bl
Emerged from round gall on willow leaf

Images of this individual: tag all
Willow Leaf Gall Sawfly? - Euura Willow Leaf Gall Sawfly? - Euura Willow Leaf Gall Sawfly? - Euura
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Contributed by Peter Bryant on 25 April, 2010 - 8:58pm
Last updated 4 May, 2010 - 8:38am

Tenthredinidae, Nematinae
Was this reared from the galls? Its hard to tell if it is a Nematus or Pontania, some species of each have similar color, and some species of both feed on willow. Being 8 mm long, it seems to me the adult pictured is a Nematus; Pontania adults would be around 5 mm or less. The galls look like Pontania galls and the larva is a Nematinae, but the larva of Pontania would be inside the galls, not walking around outside.
… Dave Smith, 4 May, 2010 - 7:40pm login or register to post comments

 
It would seem this page should be moved...
...unless, for instance, a larva was removed and placed on the leaf surface for a photo opportunity?
… Arthur Scott Macmillan, 13 May, 2010 - 2:35pm login or register to post comments

 
I was hoping...
Peter would clarify the situation.
… Charley Eiseman, 14 May, 2010 - 8:28am login or register to post comments

Moved
Moved from ID Request.
… Charley Eiseman, 4 May, 2010 - 8:38am login or register to post comments

Based on the galls...
should be a Pontania sp.
… Charley Eiseman, 25 April, 2010 - 10:56pm login or register to post comments

 
Pontania
Yes, should be Pontania based on the gall. I've never seen adults.
… Joyce Gross, 4 May, 2010 - 12:00am login or register to post comments

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