Currently viewing the category: "Flies"
What's That Bug? does not endorse extermination

Subject: A botfly in the far North?
Location: Far North, Ont., Can.
September 15, 2013 9:23 am
I caught a mouse one night and found that there were four huge bumps on its back. I looked closer and saw what appeared to be botfly larvae in holes on each bump. I froze it and gave it to our local science teacher who dissected it with her class. Here’s a picture of what they dissected. Sure looks like a botfly to me!
I live in Fort Albany First Nation, Ontario, Canada, and I am surprised that there are botflys this far North! But is it really a botfly?
Signature: FAFN Resident

Rodent Bot Fly Larva removed from Dissected Mouse

Rodent Bot Fly Larva removed from Dissected Mouse

Dear FAFN Resident,
We concur that this is a Rodent Bot Fly Larva.  According to BugGuide Data, Bot Flies are found in Canada.

What's That Bug? does not endorse extermination

Subject: Fly, beetle or spider hybrid
Location: baldwin park, ca
September 15, 2013 4:17 am
I have found three of these guys in my house. One just flew away with his life never to be heard from again, one my daughter accidently squashed and then this guy seemed to take a liking to my room, bunked who knows where & occasionally made either a strutting appearance on my wall or did a fly by. I didn’t see him again for a few days (definitely male, sheesh!) only to have the misfortune of walking on the nape of my neck whilst laying in my bed engrossed in a book & I slapped the back of my neck, jumped up and found him clinging to the back of my pj’s via one leg, taking a few last breaths. Anywho, I am curious to know what type of fly/beetle/spider this is as I have never seen this before I moved here. He was the size of a house fly but the body is flat and and diamond shaped and appeared to have a hard shelled body opposed to a fly.
Signature: mr serojo

Louse Fly

Louse Fly

Dear mr serojo,
This is a Louse Fly in the family Hippoboscidae.  Louse Flies feed on the blood of mammals or birds, and some species are very particular about the host animal.  Hosts include pigeons, deer and sheep.  If you live near an agricultural community, it might explain the number of recent sightings.  Some species of Louse Flies attach to a host animal and then lose their wings, continuing to feed and no longer needing any mobility.  Without a preferred host, the individual you swatted on your neck might have been preparing to take a bite out of you.  Louse Flies are also called Keds.

Thank you kindly for the reply. I so seldom receive an answer from sites.  We just moved to a condo and a whole family of pigeons live in the central a/c unit that’s atop our roof. We have been pestering our landlord to properly cover the unit as they bunker inside, come out mornings and leave their gifts on our windows and patio. I have to admit I was more comfortable with my hybrid super bug; hearing the word louse is never pleasant, especially knowing you may have been the subpar – you will have to do” meal.
Again, thanks for the reply!

While we cannot speak for other websites, we do try our best to respond to as many requests as possible, but the fact of the matter is that we receive more mail than our tiny staff can handle.

What's That Bug? does not endorse extermination

Subject: parasite update!
Location: Hugh MacRae Park Wilmington, NC
September 13, 2013 11:18 am
Hi Curious Creature Catcher here!!
I have an update from my last message:
September 13, 2013 2:09 pm
Three new parasites have exited the body of the cicada. My thoughts would be that they feasted on the insides, as they have left the shell of the body intact. I know for sure that they did come from the inside, but I do not know how they exited other than through the anus. Could these be Cicada Parasite Beetles?
Thanks in advance!!

Cicada with Parasites

Cicada with Parasites

my last comment:
”September 13, 2013 8:55 AM
Hello! I was in a park in Wilmington N.C. and picked up a cicada that was lying on a black paved walkway. It seemed to have just recently died, as it’s limbs and body were not stiff. I decided to take it home and placed it in the center of an empty console of my car. Upon arriving home in addition to the cicada I saw what appeared to be a parasite wiggling around in the console that measures just over a half of an inch. In observing the cicada even closer I have noticed that several body parts (head, beak and anus) are moving as if something is inside of it! Back to the parasite- it seems to have one tooth or claw like feature in the front that helps it move about. If it did come from inside the cicada I am not sure how it came out unless it was through the opening of the anus, as there are no other openings that appear on the cicada. Could this be the larva stage of a cicada killer wasp? If so, could the wasp have laid more than one egg and there are more inside of th e cica
da. Also, I thought the wasp would have taken the cicada underground- not left it on a paved walkway…”
Signature: Curious Creature Catcher

Cicada and Parasite

Cicada and Parasite

Dear Curious Creature Catcher,
This will require a bit more research on our part, but we want to post it with our initial reaction.  We do not think this parasite looks like it will metamorphose into a beetle.  You are correct that Cicada Killers drag the prey to a burrow where a single egg is laid.  Our gut instinct is that this is a fly larva, perhaps that of a Tachinid Fly.  According to BugGuide:  “Larval stages are parasitoids of other arthropods; hosts include members of 11 insect orders, centipedes, spiders, and scorpions. Some tachinids are very host-specific, others parasitize a wide variety of hosts. The most common hosts are caterpillars. Most tachinids deposit their eggs directly on the body of their host, and it is not uncommon to see caterpillars with several tachinid eggs on them. Upon hatching the larva usually burrows into its host and feeds internally. Full-grown larva leaves the host and pupates nearby. Some tachinids lay their eggs on foliage; the larvae are flattened and are called planidia; they remain on the foliage until they find a suitable host.”

What's That Bug? does not endorse extermination

Subject: Yellow Jacktet Hover Fly
Location: Pittsburg, PA
September 10, 2013 10:08 am
Not a question, just sending for your info, as I couldn’t find a sighting that wasn’t in a southern state. I wrote you before I figured out what he was. Once I had, it did it was from southern states, and I’m in Pittsburgh, PA. I’ve lived here 8 years and never saw him until this spring, and since then he visited me every day. Today he was on my hand and other areas repeatedly, and for long periods. Glad I knew by then he wasn’t a very large hornet!
Signature: Michelle

Yellow Jacket Hover Fly

Yellow Jacket Hover Fly

Hi Michelle,
Thanks for sending us your fun photo of a Yellow Jacket Hover Fly,
Milesia virginiensis.  Though most of our submissions are from the south, BugGuide lists the range as extending even further north than Pittsburgh.  We love the common name Good News Bee which you can read about on Beautiful Wildlife Garden.

What's That Bug? does not endorse extermination

Subject: Another half bee half fly.
Location: Midwestern United States
September 11, 2013 6:32 pm
I can’t identify this insect. Any help?
Signature: Josh

Fruit Fly:  Eurosta comma

Fruit Fly: Eurosta comma

Dear Josh,
Your photo isn’t that sharp, but based on this image from BugGuide, we believe this is a Fruit Fly,
Eurosta comma.

What's That Bug? does not endorse extermination

Subject: Bee Fly?
Location: Northern Arizona, Flagstaff
September 10, 2013 8:27 pm
Hi Bugman,
I photographed a rather large two winged fly on my Butterfly Bush in Flagstaff Az.
This is the high desert, 7, 000 feet above sea level.
Low humidity, day time highs around 70,
50 at night.
We get snow in the winter months.
The abdomen is bright orange in color and rather stunning.
They have large fly eyes unlike bees.
Thanks,
R.A in Flagstaff
Signature: R.A.

Tachinid Fly

Tachinid Fly

Dear R.A.,
This is a Tachinid Fly, an important family of parasitoid insects.  We posted a similar looking Tachinid Fly from the mountains of New Mexico that we featured as a Bug of the Month and tentatively identified as
Adejeania vexatrix.

Tachinid Fly

Tachinid Fly

What's That Bug? does not endorse extermination