Currently viewing the category: "Horntails, Wood Wasps and Sawflies"
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Subject: Sawfly larva identification
Location: East Gippsland, Victoria, Australia
January 14, 2017 11:05 pm
Hello. I am wondering if you can help with the identification of this interesting creature? I think it is a sawfly, family Pergidae, subfamily Perginae (I am happy to be corrected :)), but can’t get any further than that. It was spotted in mid-January, smack-bang in the middle of our Australian summer. It was approximately 2 inches long and moving alone along a fence rail. Nearby trees included two different species of eucalypt and and a she-oak.
Any insights you have would be greatly appreciated. Thanks bug guys! 🙂
Signature: Jacinta Richardson

Spitfire

Dear Jacinta,
This is indeed a Sawfly Larva, and in Australia they are known as Spitfires because of the posture they assume when they are disturbed.  We have a group of similar looking Spitfires in our archives.  Based on information on the Australian Museum site, we believe your identification is correct, but we are unable to provide a conclusive species name at this time.

Spitfire

Hi Daniel
Thank you so much for your response. I will keep researching and if I find any additional information I will let you know. I’ll also check back in case other viewers have further insights.
Thanks again. I love the site!
Jacinta

Spitfire

What's That Bug? does not endorse extermination

Subject: Name that bug!
Location: Vancouver WA
January 12, 2017 9:23 pm
This moth (?) evidently came in on the firewood. What kind of bug is this ? I could not find an image on the internet but I don’t know what search words to use.
Signature: Kurious Jo

Introduced Pine Sawfly

Dear Kurious Jo,
Based on this BugGuide image, we feel quite confident this is a male Introduced Pine Sawfly,
Diprion similis.  According to BugGuide:  “adventive from Europe; ne. US (ME-MN to NC-TN) + WA; in Canada, NF-MB & BC.”  We first reported the larvae in Washington in 2008.

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Subject: WTB?!
Location: Denver area (larva)
December 12, 2016 10:37 pm
Hello,
I’m trying to positively identify three insects so their Genus species can be part of the file name which will have the Genus species of the flowering plant, too. (You’ll see.)
…The (I think sawfly) larva is on a pincushion cactus blossom and might be two inches long? This is mid-May along the southern edge of the Denver area (Highland Ranch).
I appreciate your even taking the time to consider these.
Best,
Signature: Mark Bennett

Probably Sawfly Larva

Probably Sawfly Larva

Ed Note:  We requested higher resolution images from Mark, and he complied, supplying this additional information.

Hello Daniel,
Here are the three images in their uncropped state. Note, these uncropped images are artwork to me, not science. As such, they are entered in competition at a gallery and could, with luck and the favor of the judges, be selected for display. And, with more luck and perseverance, become salable prints. THUS, please observe my copyright restrictions — you may use the images on your web site and archive, for educational purposes, but they can not be reproduced or shared or in any method used for commercial purposes by you, What’s That Bug?, or any other entity without my express permission. If these terms are acceptable, and accepted, then we’re good. If not, then please delete the attached file(s).
Thanks. I do hope these help the organization.
Mark Bennett Photography
markbennettphoto.com

Escobaria vivipara blossom Symphyta Dolerus sp. sawfly larva Littleton nature walk 20120521 25cv

Escobaria vivipara blossom
Symphyta Dolerus sp. sawfly larva
Littleton nature walk 20120521 25cv

December 18, 2016
Hi again Mark,
We are finally getting around to posting what we agree appears to be a sawfly larva.  We will attempt to contact Eric Eaton to see if he agrees.  We will be postdating this submission to go live to our site while we are away from the office on Christmas Day because of the beautiful colors represented in your artful image.

Sounds like fun! It is a beautiful image, if I say so myself, and is my favorite for inclusion in the upcoming gallery show in Fort Collins, Colorado. The theme is “animalia” and I’m hoping that my “animal,” being present but not the apparent, initial, focus of the photo will catch the jurors’ eyes.
Have a happy holiday,
Mark

Eric Eaton Confirms Sawfly Larva identification.
Yes, the other is a sawfly larva.  Great job!
Eric Eaton
author Kaufman Field Guide to Insects of North America
http://bugeric.blogspot.com/

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Subject: Larva ID
Location: Chimney Tops Capstone
October 13, 2016 1:35 pm
Hello there! Today I was wondering if I could have and ID conformation given to a larva. This larva has been posted to BugGuide (it is my image) and we are currently undecided on an ID. At first I thought it could be a caterpillar, but I am more convinced that it is Gilpinia hercyniae. The thing is, we are not sure about the range of this sawfly larva. It seems to be that G. hercyniae is an uncommon insect, and i have yet to find records of it in TN. Just wanted to see what you guys thought about it. Thanks for your time! Link to the BG page http://bugguide.net/node/view/1297521
It was found on 8/24/16 in the Great Smoky Mountains National Park at the Chimney Tops Capstone , in Sevier County, Tennessee.
~35° 37.725’N 83° 28.682’W
~4,700 feet above sea level
Signature: Cicada Lover

Possibly European Spruce Sawfly

Possibly European Spruce Sawfly

Dear Cicada Lover,
We agree with you that this appears like it might be a European Spruce Sawfly larva as pictured on BugGuide.  Have you any other images?  It would be great if you had an image where we are able to count the prolegs.  According to Natural Resources Canada:  “Native to Europe, the European spruce sawfly was first reported in Canada in 1922 and in the United States in 1929, but did not really attract the attention of foresters until 1930, when it caused severe damage to spruce stands in Quebec’s Gaspé peninsula. The infestation spread rapidly throughout northeastern North America. The discovery of this infestation led to the development of a national forest insect inventory network consisting of the states in the northeastern U.S.   Sawfly populations began to decline in 1938 with the emergence of a viral disease that affects the larvae, returning to endemic levels in 1945, where it has since remained throughout Canada. Its current Canadian range extends from the Atlantic provinces to Manitoba.”  Tennessee is further south than any reported BugGuide sightings.  Please let us know if you learn anything new from the BugGuide posting.

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Subject: Insect all over Cedar trees
Location: Castleford, Idaho
October 10, 2016 4:45 pm
It appears to be boring into the trees and causing damage
Signature: ??

Horntail

Horntail

This is a Horntail in the family Siricidae, and probably in the subfamily Siricinae, the subfamily that feeds on conifers.  Horntails are non-stinging relatives of Wasps, and they have larvae that bore in wood.  This female is likely in the process of laying eggs.  She looks like she might be Sirex nigricornis, a species pictured on BugGuide.  Though there are only a few images posted to BugGuide and they are from Pennsylvania and New York, the range, according to BugGuide, is “across Canada (QC-AB-?BC) and the US south to FL-TX” and “wide host range, mostly on various pines.”

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Subject: Grasshopper/bee hybrid?
Location: Bozeman, MT
September 30, 2016 3:17 pm
This was a very loud bug about 2.5 inches long in overall length. Looks like it had a stinger about 3/8 inches long.
Signature: Curious

Pigeon Horntail

Pigeon Horntail

Dear Curious,
This is a Pigeon Horntail, a non-stinging relative of wasps and bees.   See this BugGuide image for comparison.   Pigeon Horntails lay eggs beneath the bark on deciduous trees and the larvae are wood borers.  According to BugGuide:  “hosts include beech, elm, hickory, maple, oak, poplar, apple, pear, sycamore, and hackberry.”

What's That Bug? does not endorse extermination