Currently viewing the category: "Horntails, Wood Wasps and Sawflies"
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Subject: Unknown bug
Location: Huntsville, Ontario.
August 8, 2016 7:08 pm
Could not identify this one. Wasp?
Thanks for any help you can offer.
No hurry.
Signature: Barry

Sawfly Sculpture

Sawfly Sculpture

Dear Barry,
When we opened the first of your images, we were so disoriented, we thought we were looking at an insect inspired sculpture, and not a real insect.  It wasn’t until we opened a second attached image that we realized we were looking at a dead Sawfly that had been posed, upended, with its legs functioning as the foundation of the “sculpture” and our orientation returned.  Your insect is an Elm Sawfly,
Cimbex americana, and you can compare your dead individual to this image of a living specimen on BugGuide.  Sawflies are non-stinging relatives of wasps and bees, and Sawfly larvae are frequently confused for caterpillars.

Elm Sawfly

Elm Sawfly

What's That Bug? does not endorse extermination

Subject: Mystery bug
Location: Southern California – Murrieta
August 7, 2016 11:31 am
Please help me identify this bug. It seems to be tunneling out through the dry wall of my brand new house. It makes a perfectly round hole
Signature: Marilyn

Horntail:  Sirex nigricornis

Horntail: Sirex nigricornis

Dear Marilyn,
This is a Horntail, a type of Wood Wasp, in the family Siricidae, and we believe we have correctly identified it on BugGuide as a female
Sirex nigricornis.  According to BugGuide it has a range “across Canada (QC-AB-?BC) and the US south to FL-TX” and the larval food is “wide host range, mostly on various pines.”  Pine is a common building material, and our supposition is that there were larvae in pine logs that were used in the construction of your home, and when metamorphosis was complete, this individual emerged.  If that is the case, you may see more.

What's That Bug? does not endorse extermination

Subject: Large strange insect in garden
Location: Heptonstall west Yorks Hx7 7ha
August 6, 2016 8:14 am
Found this large bug in kids blue tray in garden. Never seen anything like it. What is it and isn’t safe please . It is about 2 ich long. Has bright yellow eyes and a trail like. Thing st back
Signature: Joan Rutkowski

Great Wood Wasp

Great Wood Wasp

Dear Joan,
This is a Great Wood Wasp,
Urocerus gigas, and you can read more about it on UK Safari where it states:  “They’re sometimes called ‘Giant Horntails’ for obvious reasons.  The female Great Wood Wasp has a long pointed tube at the back of her body, and this is usually mistaken for a stinging organ.  In fact it’s an ovipositor, which she uses to lay her eggs in the trunks of coniferous trees.  Despite their slightly fearsome appearance, these insects are quite harmless.”

Thank you so much for that quick reply. Glad to know it is not harmful and we have let it loose in the conifer hedge

What's That Bug? does not endorse extermination

Subject: Vermont fly
Location: Vermont
July 25, 2016 7:29 pm
Hey. My buddy was doing work in VT today andd saw this fly on the tower he’s working on. He is curious what it is. Thank you.
Signature: Dan H

Elm Sawfly

Elm Sawfly

Dear Dan,
This Elm Sawfly is actually a non-stinging relative of Bees and Wasps, and not a true fly.

Thank you for your quick reply. You nailed the identification. Thank you so much and keep up the great work!

What's That Bug? does not endorse extermination

Subject: Large flying wasp insect
Location: North East England
July 17, 2016 1:15 pm
Hello,
I was working in Hornsea, England today and this insect paid us a visit on a rooftop, clung to a roll of roofing felt. As we had no idea what it was, we were wondering if we could find out what it is!
Signature: Michael Cockerill

Wood Wasp

Wood Wasp

Dear Michael,
This is a harmless Giant Wood Wasp,
Urocerus gigas, and we just finished posting an image of a Giant Wood Wasp from Ireland.

Daniel,
Thanks very much for your response, really appreciate the reply!
Very best wishes,
Michael

What's That Bug? does not endorse extermination

Subject: Whats this bug?
Location: Surrey, BC, Canada
July 24, 2016 10:32 am
Hi All!
I live in Surrey, BC Canada and had this bug land on my boat cover as I was doing some chores.
It was/is about 3cm long… ish… and just seemed pretty content to fly around after I took a few pics.
Never seen something like this and we’re hoping you could tell us what it is.
Thanks!
Signature: Richard

Wood Wasp

Wood Wasp

Dear Richard,
This beautiful, and harmless, Wood Wasp or Horntail is
Urocerus albicornis, a North American species, found, according to BugGuide, in “forested regions from southern boreal Canada south to NC-MP-NM-CA.”  BugGuide also notes:  “hosts include fir, larch, spruce, pine, Douglas-fir, hemlock, and western red cedar.”

What's That Bug? does not endorse extermination