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

Subject: Wasp or vespa cadro
Location: Forest of Dean United Kingdom
July 18, 2017 11:23 pm
What’s this please
Signature: Haydee

Hornet Mimic Hover Fly

Dear Haydee,
This is neither, though it is a very effective mimic.  This is a Hover Fly in the family Syrphidae, and as you can see from the British Hoverflies site, many species are very effective mimics of stinging bees and wasps, which serves as an effective form of protective coloration for this harmless flies that are beneficial pollinators.  We believe your individual is a female (space between eyes)
Volucella zonaria based on images posted to British Hoverflies.  According to NatureSpot:  “This is a hornet mimic and is one of our largest and most spectacular hoverflies which can be recognised by its yellow and black banded abdomen. It is chestnut on tergite 2 and also on the scutellum and much of the thorasic dorsum.”  NatureSpot also states:  “This species became established in Britain in the 1940s and has very much a southerly distribution with most records coming from south of a line from the Severn Estuary to The Wash, however it seems to be expanding its range.”  iNaturalist calls it the Hornet Mimic Hoverfly.

Thank you so much I’ve had everyone guessing on social media.. Great to know so I can give feedback xx

What's That Bug? does not endorse extermination

Subject: Silly for not knowing…
Location: Carlisle, Cumbria
July 17, 2017 11:21 am
Hi please could you help me identify this beastie? He was about 2 inches and came home with me on my boot. I’d be most grateful. Thank you., Becky.
Signature: The bug

Female Dark Giant Horse Fly

This is a female Dark Giant Horse Fly.

What's That Bug? does not endorse extermination

Subject: A Half Transparent Fly?
Location: East Rounton, North Yorkshire, UK
July 17, 2017 11:18 am
Hello, Do you know what type of fly this is? I can’t find it on Google nor on your website.
It’s abdomen was half transparent and half black.
Signature: AG

Great Pied Hoverfly

Dear AG,
Based on images posted to Insects of Scotland, we are confident that this is a Great Pied Hoverfly,
Volucella pellucens.  The Insects of Scotland states:  “A very large shiny bumble bee-like  hoverfly with an unusual half black half white abdomen and black legs. The white stripe across its abdomen can be all white with just a hint of black in the middle … or the white can be dissected with a black line …. The wings are mainly clear, but each one has a dark patch on it. It lays its eggs inside the nests of wasps and bees where the larvae scavenge. “  It is also pictured on Nature Spot.

Thanks for writing back Daniel. I’m very impressed with your findings and appreciate the help you gave to me.
I learned something new today!
Thanks again

What's That Bug? does not endorse extermination

Subject: Is this a fly?
Location: Mechanicsburg, PA
July 15, 2017 8:22 pm
Hi Bugman!
This guy was hanging out on our deck railing this afternoon. It’s a new one for me and I’d love to know what it is. I’m pretty good about looking things up, but I’m stumped and need the experts. It has fly looking eyes, but those wings are unique. It wouldn’t be a peacock fly with its wings down, would it? (One of those stopped by a couple years ago. First and only sighting.) It was the size of a lightning bug.
Signature: Perplexed in PA

Marsh Fly

Dear Perplexed in PA,
We believe this unique looking fly is a Marsh Fly,
Euthycera arcuata, thanks to this BugGuide image.  According to BugGuide:  “‘Very distinctive species with a unique closed-wing shape.’ –Bill Murphy.”  Of the family, BugGuide notes:  “adults around marshes, lakes, ponds, or wooded areas; larvae are aquatic” and “larvae parasitize or prey on freshwater or terrestrial snails.”

Thank you so much! That definitely looks like a match! We do have boggy/marshy areas near our house and I’ve seen snails in certain areas of our yard. That’s so interesting. Some bugs are familiar and easy to spot – seasonal regulars. Others are chance encounters never to be seen again. I love discovering what’s right in my own backyard!

What's That Bug? does not endorse extermination

Subject: Large black flying insect
Location: Columbus, Ohio
July 16, 2017 12:08 pm
We are seeing quite a few of these bugs in our backyard and one of our dogs is extra curious. Is it harmful or invasive? What is it?
Signature: Kate

Tiger Bee Fly

Dear Kate,
The Tiger Bee Fly is native and it is harmless.

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