Currently viewing the category: "Flies"

Subject:  Japanese Crane Fly?
Geographic location of the bug:  Wakayama, Japan
Date: 07/28/2021
Time: 05:46 PM EDT
Your letter to the bugman:  Looked like a wasp at first but then Google took me to your site and I think it’s very close to a crane fly you posted. It was sitting on my car at 35 degrees on July 27, 2021
How you want your letter signed:  Dirk

Crane Fly

Dear Dirk,
Your Crane Fly looks like an old posting from our archives that was identified as
Ctenophora ishiharai, and we located this FlickR posting that is identified as Ctenophora nohirae.  We believe the latter is a closer match.

Wow, thanks a lot!
Much appreciated.

Subject:  Flying insect
Geographic location of the bug:  Irving tx
Date: 07/27/2021
Time: 05:09 PM EDT
Your letter to the bugman:  I thought this was a wasp chasing me in the flower bed. He buzzed loudly.
How you want your letter signed:  Peggy clark

Robber Fly: Microstylum morosum

Dear Peggy,
Thanks so much for sending in your marvelous images of this magnificent Robber Fly,
Microstylum morosum, which is pictured on BugGuide.

Robber Fly: Microstylum morosum

Subject:  Large robber fly
Geographic location of the bug:  Pasadena Ca
Date: 07/23/2021
Time: 05:19 PM EDT
Your letter to the bugman:  These photos are taken around a backyard pond in Pasadena Ca. Although I would like to know what species the dragonfly is (it has just emerged and is still clinging to it’s niad shell) my main qestion is in regards to the other photo. What kind of robber fly do you think this is? It’s by far the largest one I’ve seen. The plastic cap of the garden stake next to it is 19 millimeters in diameter.
How you want your letter signed:  Roy

Robber Fly

Dear Roy,
Based on images posted to BugGuide and the reported range, we believe your Robber Fly might be
Promachus princeps.

Subject:  What’s this bug?
Geographic location of the bug:  Polson, Montana
Date: 07/24/2021
Time: 09:22 PM EDT
Your letter to the bugman:  Hello-
We spotted this bug on the deck railing today. Can you enlighten us as to what it is? We are near Flathead Lake & some stagnant ponds. We’ve never seen anything like it. Thanks!
How you want your letter signed:  Suzanne M

Robber Fly: Stenopogon inquinatus

Dear Suzanne,
We believe we have identified your large, predatory Robber Fly as
 Stenopogon inquinatus which is pictured on BugGuide.

Robber Fly: Stenopogon inquinatus

Thank you so much! I read up on the Stenopogon & found that it can be a predator of hummingbirds. This one was hanging out on the railing, right by the hummingbird feeder. Next time we see it, we’ll definitely shoo it away.
I really appreciate your fast response! Cheers!

Subject:  Small black wasp?
Geographic location of the bug:  Charlottesville, VA
Date: 07/23/2021
Time: 12:02 PM EDT
Your letter to the bugman:  Hi,
I’ve been finding lots of these insects in our basement — often dead. I’m not sure where they came from or how to keep them outside, but I figure a good first step will be identifying them! Thanks in advance for your help.
How you want your letter signed:  Kyle

Black Soldier Fly

Dear Kyle,
Though it resembles a Wasp, this is actually a harmless (doesn’t sting nor bite) Black Soldier Fly,
Hermetia illucens, also called a Window Fly because of the transparent features of its abdomen clearly visible in your image.  Have you a compost pile in or near your basement?  Black Soldier Fly larvae are frequently found in compost piles where they are considered beneficial.

Hi Daniel,
Thank you so much! As it happens, we have a compost pile right outside, so that’s definitely where they come from. Hopefully most end up staying outside.
Seriously, thank you so much for the quick reply. I know how many of these you get, and appreciate you taking the time.

Subject:  Maybe a tiger bee fly?
Geographic location of the bug:  Louisville, KY 40299
Date: 07/20/2021
Time: 11:00 AM EDT
Your letter to the bugman :  Good day sir, this (not so little) guy was hanging out on my front porch and wasn’t too disturbed by me getting my phone very close for these striking images. I placed a penny near it in a couple of photos so you could have a sense of scale. Wondered what exactly it is and if it is dangerous in any way. Thanks kindly!
How you want your letter signed:  Wayne H

Tachinid Fly

Dear Wayne,
Daniel just published an identification request for a Tiger Bee Fly, which is definitely not your fly.  This is actually a Parasitic Tachinid Fly in the family Tachinidae, a group with many individuals that are covered with course hairs, so they are sometimes called Bristle Flies. Your individual appears to be a member of the genus 
Leschenaultia which is pictured on BugGuide where the host prey is identified as members of several moth families. Insects that are parasitoids, meaning the eggs are laid on the bodies of host insects which are eaten alive, are often very specific about the host prey which is sometimes limited to a single species.  This fly poses no threat to humans.

Tachinid Fly

Thank you so much for the information!
Wayne Hutchins