Category Archives: Assassin Bugs   rss

Wheel Bug

long-legged bug with shield-like armor on its back
November 6, 2009
I saw this bug in November of 2009. It was on my front porch. The closest description I can give is that it looked like a grasshopper only with flat wings instead of vertical wings. The shield-like “armor” on its back raised up about 1/4 inch from the body and appeared to have “fake” eyes on the lower front. Its head extended forward in an elongated fashion from the main body with long antennae. Pictures are included from the top, bottom and side.
R Morana
Northwest TN. near Kentucky Lake

wheel bug r 300x259 Wheel Bug

Wheel Bug

Dear R,
This is North America’s largest predatory Assassin Bug, the Wheel Bug.

What's That Bug? does not endorse extermination

Milkweed Assassin Bug: Adult and Nymph

Predatory Orange Bug
November 1, 2009
These bugs are everywhere in my butterfly garden! They rapidly consume the caterpillars, and the favorite food seems to be the Cloudless Sulphur cats. Getting these photos was difficult as they kept flying away, but I finally got a few….
Any ideas on what these might be?
Thanks so much!
Houston, TX

milkweed assassin houston 300x202 Milkweed Assassin Bug:  Adult and Nymph

Milkweed Assassin Bug

Because of its resemblance to the Milkweed Bug, your insect, Zelus longipes, is known as a Milkweed Assassin Bug, though it is not typically associated with Milkweed.  Both wingless nymphs and winged adults feed on soft bodied insects like caterpillars, and they are generally thought of as beneficial in the garden where they feed on armyworms and cucumber beetle larvae.  If carelessly handled, Milkweed Assassin Bugs might bite and the bite is reported to be painful.

milkweed assassin nymph houston 300x216 Milkweed Assassin Bug:  Adult and Nymph

Milkweed Assassin Bug Nymph

Thanks so much! I really appreciate yall’s site. The Unnecessary
Carnage page was definitely my favorite – please ignore the Nasty
Readers icon smile Milkweed Assassin Bug:  Adult and Nymph

Wheel Bug

“Wheelbarrow Bug”
November 2, 2009
This is a bug I see about once a year, although it’s probably common. My parents’ generation calls it a “wheelbarrow” bug because of the wheel-like appendage on it’s back. But, I’d like to know what it’s real name is. My aunt said it was odd to see one this late in the year, but we haven’t had a freeze yet. This bug was crawling on the swing, and it would watch me as I tried to get in close to photograph it, and turn to face me. It was not a fast-moving creature (as bugs go). It’s most unusual feature is the thin gear- or wheel-like appendage on the creature’s back that is visible when viewed from the side. It is grey and black in color, and about 3.5 cm in length.
Michael Wilson
Carter County, Oklahoma, USA

wheel bug michael 300x270 Wheel Bug

Wheel Bug

Hi Michael,
Though we have not heard the common name Wheelbarrow Bug, we like it.  The common name for this large Assassin Bug, Arulus cristatus, is Wheel Bug.  Since it only has one “wheel” like a wheelbarrow, we find your name to be most appropriate.
Like other Assassin Bugs, Wheel Bugs might bite if carelessly handled.

What's That Bug? does not endorse extermination

Thread Legged Bug

Mini Praying Mantis
October 30, 2009
Hi,
My cat first found one of these interesting creatures inside our house (7/6/09), and I made a short video of it before letting it go: http://www.youtube.com/watch?v=xoISwh7K8BE
Last night (10/29/09), in my cat’s water dish, I rescued another one (or the same one) from the water. It seems similar to the grass mantis (four spider-like legs), but both the head and body shape are clearly different. What do you think?
Best wishes,
Rich
Rich Smith / RichSmith.com / Los Angeles
West Los Angeles 90066

threadleg bug rich 300x170 Thread Legged Bug

Thread Legged Bug

Hi Rich,
This is an Assassin Bug in the subfamily Emesinae, known as the Thread Legged Bugs.  Our best guess is that it is in the genus Empicoris, characterized by “femora, tibiae, and antennae banded black and white; forefemora thickened, elongate; wings slender, extending slightly beyond tip of abdomen
” according to BugGuide.  The front legs that are modified for grasping insects do resemble the front legs of mantids.

Wheel Bug

six leg, flying, single fang insect
October 21, 2009
Hi guys, This insect has been hanging around my house for a few days now 10/21/2009. I live in a suburb of Pittsburgh PA. Current temp is 60 ish. The insect was found clinging to a window screen, it also like painted block walls. The body from tail to the tip of the head is 1.5″ long. It seems to have a single “fang” and it does fly (not very gracefully). Can you tell me what it is?
Jim Holman
Munhall PA

wheel bug jim 300x195 Wheel Bug

Wheel Bug

Nevermind
Jim Holman to bugman
October 21, 2009
Sorry I was so quick on the trigger. I just submitted a request to id an insect or BUG in this case. I did find the insect on your site. I wasn’t sure how to search for it but using the word armored did the trick. I’m refering to the wheel bug. You may keep/use the images I sent if you like them.
Jim Holman
Pittsburgh PA

wheel bug flying jim 300x217 Wheel Bug

Wheel Bug

Hi Jim,
We are happy to see that you identified your Wheel Bug and sent us a cancellation of the identification request within eleven minutes.  We are posting your letter for two reasons.  First it demonstrates the efficiency of our search engine even without having any knowledge of insects, and we hope our readership makes use of it.  Secondly, your photos are quite good and very illustrative of this large species of Assassin Bug.  This is the only image we have ever received of a Wheel Bug with its wings expanded for flight.  Though Wheel Bugs are not prone to biting humans, they can produce a painful bite with that piercing mouth.

1

Immature Corsair Bug from Oklahoma

Orange-red bug with odd ridged tail
October 10, 2009
Dear Bugman,
I’m trying to help my son with a Science project, but can’t figure out what this bug is! We found this little critter scampering across the kitchen floor in our typical suburban neighborhood, Can you help?
Bug-ignorant Dad
Norman, Oklahoma, USA

assassin oklahoma 294x300 Immature Corsair Bug from Oklahoma

Corsair Bug Nymph

Dear Bug-ignorant Dad,
This is some species of Assassin Bug, and it appears to be an immature specimen since the wings are not fully developed.  We matched it to an unidentified Corsair Bug nymph posted to BugGuide, also from Oklahoma.  The person who posted those images states:  “Found under a rock.  Hopefully these shots are better and maybe the ID can be gotten further.  I know from past encounters with these that they are fairly quick and agile. So, when I turned the rock over it started making it’s escape. I didn’t have a container so I caught it in my hand and carried back to the house (a little over a quarter mile). I’m glad it didn’t decide to stab me with that proboscis!
Members of this genus are reported to have a very painful bite.

Daniel,
Thanks so much for your help.  It’s great to see that people with expertise in this field are willing to help those of use who are basically know – nothings.
Have a great day,
Kent

Oleander Caterpillar and Milkweed Assassin Bug

What type if catepillars
October 5, 2009
Found eating Oleander near Hilton Head South Carolina
Walt Jankowski
Hilton Head SC

oleander cat milkweed assassin walt 207x300 Oleander Caterpillar and Milkweed Assassin Bug

Oleander Caterpillar and Milkweed Assassin Bug

Hi Walt,
The caterpillar in your photo is known as the Oleander Caterpillar, and it is the larva of the Polka Dot Wasp Moth, Syntomeida epilais.  Below the caterpillar is an immature Milkweed Assassin Bug, a predator that often feeds on caterpillars.  We  are uncertain if it will prey upon the Oleander Caterpillar.  The caterpillar stores toxins from the oleander in its body which renders it unpalatable to many predators.

Wheel Bug

Insect With Gold Wing Tips
October 4, 2009
I was hiking around Sugarloaf Mountain with some friends when we spotted this odd insect. I looked around trying to identify it, but couldn’t find anything so I thought I’d ask.
Brian B
Sugarloaf Mountain, MD

wheelbug brian 300x209 Wheel Bug

Wheel Bug

Hi Brian,
This is a Wheel Bug.  Not all Wheel Bugs exhibit this coloration, and it may just be the way the light is reflecting on the wing membranes.


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