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Wasp ID if possible - Onycholyda sitkensis

Wasp ID if possible - Onycholyda sitkensis
Victoria, British Columbia, Canada
April 23, 2007
Not a great shot as the sun caused some problems. May be enough for some ID which would be appreciated.

Images of this individual: tag all
Wasp ID if possible - Onycholyda sitkensis Wasp ID if possible - Onycholyda sitkensis Wasp ID if possible - Onycholyda sitkensis

Moved from Onycholyda.

This is Onycholyta sitkensis
This is Onycholyta sitkensis (Kincaid). A western species that feeds on Rubus.


As a note
Catalog of Hymenoptera in America North of Mexico lists three species of Onycholyda which are found in B.C.
O. excavatus, O. multisignatus, & O. excavatus.

O. excavatus is a parasite of species, O. excavatus of Rubus. it is not notes what the host of O. multisignatus is.

Not much help but it narrows down the field a little.

Onycholyda cf. luteicornis

Sawfly, but may not be Pamphiliidae.
Many of the Tenthredinidae are also ornately-marked. Pamphiliids tend to have large, ROUND heads, and more robust bodies. This one looks to have a more squarish head, which has me leaning heavily toward Tenthredinidae. The antennae on this specimen DO suggest pamphiliids, but that could be an artifact of motion blur, too.

Added a couple of poor images that may help. Bought your book Eric at a nature center.

Thanks on both counts!
I stand corrected. It IS a pamphiliid. I can now clearly see the many, diminutive antennal segments, in contrast to the much longer antennal segments of tenthrenidiids. Thank you for the additional photos; and thanks for the book sale:-)

Thank you Eric, glad the othe
Thank you Eric, glad the other images helped, although they were rather poor. I like the book. If you have a little free time have a look at our new nature site. My photos, sons technical stuff. All subjects.

I agree; looks like a Pamphilliid
Are there a good number of these sawflies in this location? They can be very rare overall, but locally abundant. If there are, I am interested in these for my research with Hymenopteran ovipositor morphology. Please contact me if you would be able to collect more of these. Thank you.

My only other image posted of a sawfly was Photo#100355 posted March the 29th. I did take three other shots of the one on this page you commented on, but they weren't very good, just a record I guess.

Saw fly
I basically take all these insects etc. that I have submitted in our garden, out of the 2 hundred or so that I have had ID.d, this is the first I have seen and a first time image other than an early stage shot taken last year. I try each day to add images if the weather permits.

I was a bit more interested i
I was a bit more interested in the specimens themselves - dissecting them for morphological studies. I understand that they are fairly rare so you are pretty lucky to get to see them alive.

looks like something in the family Pamphiliidae... that is the best i can do.

Thank you Edward for your reply, much appreciated.

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