Currently viewing the category: "Robber Flies"
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Subject: What is this?
Location: Media, PA
July 30, 2017 6:00 pm
I have never seen this type of bug before! It stood really still for a very long time, even as I was taking it’s picture, and then it flew away, like a helicopter!
Signature: Curious

Hanging Thief

Dear Curious,
This impressive, predatory Robber Fly is known as a Hanging Thief.

What's That Bug? does not endorse extermination

Subject: Mail truck invading bug in Massachusetts
Location: Reading, Massachusetts
July 29, 2017 7:04 am
So my boyfriend is a mail man in Massachusetts and he keeps getting invaded by these odd looking bugs. We’ve never seen them before but apparently all his mail man friends are having the same hitchhiker bugs in their trucks as well. Help what is it?!?!?
Signature: Mandy (singing mailmans gf)

Robber Fly

Dear Mandy,
This is a Robber Fly in the family Asilidae, an aerial predator that catches its prey while on the wing.  We are unable to provide a species identification.  We don’t know why all the mail trucks in Reading, Massachusetts are being used by the Robber Flies as resting spots.

What's That Bug? does not endorse extermination

Subject: Identify insect
Location: Front Royal, Virginia
July 25, 2017 5:33 pm
Respectfully request an identification of this insect.
Thank you in advance!
Signature: Jean

Hanging Thief

Dear Jean,
This Robber Fly is known as a Hanging Thief because it dangles from one leg while eating prey captured on the wing.

What's That Bug? does not endorse extermination

Subject: What is this in my house?
Location: Columbus Indiana
July 15, 2017 10:01 am
I found this on my cup in the kitchen. Took it out side and blew it off the cup. The next second the door was open it flew right back in. Very long legs with spikes hairs in the lower part and flies very lazily dipping as it flies around.
Signature: Thank you, T

Hanging Thief

Dear T,
This predatory Robber Fly in the genus
Diogmites uses its long legs to capture prey on the wing.  It eats, often dangling from one leg, which led to the common name Hanging Thief.

What's That Bug? does not endorse extermination

Subject: What type of insect
Location: Southern-Central Illinois
July 11, 2017 5:05 pm
Saw this outside the window. At first thought it was a wasp but then it landed and when I looked at it more closely it resembled a mosquito. What type of insect is this?
Signature: J. Fortado

Hanging Thief

Dear J. Fortado,
This distinctive looking Robber Fly is a Hanging Thief in the genus
Diogmites.  Those long legs are used to capture prey.  These are predatory hunters that take their prey on the wing, and they often eat while hanging from one leg, hence the common name Hanging Thief.

Hanging Thief

What's That Bug? does not endorse extermination

Subject: Bug bit wife
Location: North Carolina
July 10, 2017 7:38 pm
Hey was just wondering what this bug was is
Signature: Ryan

Robber Fly

Dear Ryan,
This is a predatory Robber Fly in the family Asilidae.  Robber Flies generally take prey on the wing, and large Robber Flies are capable of attacking large prey.  Robber Flies are not aggressive, but they do have mouths adapted to piercing the hard exoskeletons of insect prey, including Dragonflies and large Wasps, and then sucking fluids from the now dead prey.  We doubt this Robber Fly dive bombed and attacked your wife.  You did not provide much in the way of details, but we suspect perhaps this Robber Fly found itself trapped inside your wife’s clothing and then bit defensively.

What's That Bug? does not endorse extermination