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

Subject:  Anthropod Classification
Geographic location of the bug:  United States, Florida
Date: 03/24/2019
Time: 10:47 PM EDT
Your letter to the bugman:  Hi, I had to take pictures of anthropods I could find in my yard and classify the bugs for my zoology class. For the life of me, I can’t figure out what it is. I took the picture in my front yard and I am located in Florida. I appreciate any help you could offer me. Thank you in advance!
How you want your letter signed:  Willow Orr

Soldier Fly

Dear Willow,
Based on this BugGuide image, we believe this is a Soldier Fly in the genus
Hedriodiscus.  According to BugGuide:  “spp. are very difficult to ID and not all are valid.”  An even closer visual match is the Soldier Fly Odontomyia cincta, also pictured on BugGuide.  Though we are uncertain of the species, we are confident this is a Soldier Fly.

Soldier Fly

ou are spot on! It is an Odontomyia cincta Soldier Fly. Thank you so much for respond, I appreciate the help!

What's That Bug? does not endorse extermination

Subject:  Large black flies (Mydas??) showing up in my house.
Geographic location of the bug:  Charlottesville, VA
Date: 03/25/2019
Time: 07:05 PM EDT
Your letter to the bugman:  I’ve noticed several of these bugs around the windows in my house. I will find many of them dead on the ground or sometimes crawling around on the window sill. They are black and quite large (3/4″ long). I’m thinking that they are mydas flies but am not 100%.
Any information you could provide would be greatly appreciated.
If these are Mydas flies where are they coming from and what can I do to get rid of them?
Thank you!
How you want your letter signed:  Zushi

Black Soldier Fly

Dear Zushi,
This is not a Mydas Fly.  Rather, it is a Black Soldier Fly or Window Fly,
Hermetia illucens.  The name Window Fly refers to clear patches in the abdomen, and not because they are found in windows.  Do you have a nearby compost pile?  Larvae of Black Soldier Flies are frequently found in compost piles.  We do not provide extermination advice. 

Black Soldier Fly

Daniel,
Thank you for the reply/information. I will have a look at their abdomen and look for the transparency. I do have a personal compost bin in my backyard garden. I’ve used the compost in soils around my garden and most likely i’ve dug up some of that soil to use in pots that I have some plants in inside my house. This is probably my source.
I understand not giving extermination advice. Once the weather changes for the better I plan on moving most of my plants outside. I will probably go through the process of replacing a lot of the potted soil as well and moving the current soil back into my compost.
Anything else you could provide would be greatly appreciate.
Best regards,
John Boyd

 

What's That Bug? does not endorse extermination

Subject:  Black flying insect
Geographic location of the bug:  Daytona beach Fl
Date: 08/07/2018
Time: 01:17 PM EDT
Your letter to the bugman:  Found this in my home looked online found nothing seems like a carpenter bee
How you want your letter signed:  Trevor

Probably Black Soldier Fly

Dear Trevor,
This is a Solder Fly, and we believe, because of the white legs, that it is a harmless Black Soldier Fly,
Hermetia illucens, but we have never had to ID one from a ventral view.  ResearchGate has a ventral view.

What's That Bug? does not endorse extermination

Subject:  Found a bug I’ve never seen before
Geographic location of the bug:  Central Victoria, Australia
Date: 04/28/2018
Time: 05:47 AM EDT
Your letter to the bugman:  Dear bug man, found this sick looking bug when out camping. I’ve never seen anything like it before
How you want your letter signed:  From brett

Flightless Female Soldier Fly: Boreoides subulatus

Dear Brett,
The first time we received an image of this species of flightless Female Soldier Fly
Boreoides subulatus, we did not know if we were looking at a mutilated individual that was missing its wings.  The species is pictured on iNaturalist and on Atlas of Living Australia, and according to the Museums Victoria site:  “Female Wingless Soldier Flies are seen on walls and fences, laying masses of long white eggs. Larvae live in damp soil or rotting vegetation, especially in or near compost.”  

What's That Bug? does not endorse extermination

Subject:  What bug is this?
Geographic location of the bug:  Mid Atlantic. Southern Delaware by the ocean
Date: 01/23/2018
Time: 11:20 AM EDT
Your letter to the bugman:  I brought my red worm composting operation in doors because of the super cold temperatures.  I am sure these bugs hatched in the worm bin.  I have seen at least a dozen of them in the house.  I looked in the worm bin and there were several in the bin. If the picture is not adequate I probably can get a better one.
Thanks for all your efforts!
How you want your letter signed:  David Elder

Black Soldier Fly

Dear David,
This Black Soldier Fly,
Hermettia illucens, also called a Window Fly because of the transparent areas on the abdomen, is perfectly harmless.  Its larvae have no doubt been living in your compost pile and the warm conditions indoors probably hastened the maturing process.

Thanks so much DAN da Man!
David

What's That Bug? does not endorse extermination

Subject:  What’s this bug/worm in standing water?
Geographic location of the bug:  Northern CA – Mendocino Coast
Date: 11/11/2017
Time: 04:59 PM EDT
I’ve been seeing a lot of these worm bugs floating/swimming in the standing water on top of my composter.  They are alive and move around slowly in the water.  They’re almost an inch long and kind of skinny if you see them sideways (2nd photo).  Can you tell me what this is?
Thanks so much!
How you want your letter signed:  Laurie York

Black Soldier Fly Pupa

Dear Laurie,
This is a Black Soldier Fly Pupa, and their presence in your compost pile is a sign that it is healthy.  According to Daily Dump:  “The Black Soldier Fly Maggots are prolific creatures that appear in all compost heaps – they are nature’s scavengers and good for composting. They love a very wet pile. …  If it’s too much and you want to avoid them coming out and crawling on your floor, you can put your composter in a plastic tub with high sides. They usually cannot crawl out of that slippery vertical surface. If they crawl out and wander all over, then sweep them up, collect them in a container and drop them under a tree – birds love them!  Remember that these BSF maggots suppress the lifecycle of the pest carrying housefly. The Soldier flies have no mouth and cannot transmit pathogens, so they are harmless. Appreciate them. They are even a fried delicacy in some cultures as they are very rich in protein!” 

Black Soldier Fly Pupa

Hi Daniel,
Thanks so much for writing me with this info about the Black Soldier Fly Pupa.  Now when I see them I’ll not be frightened and know that they are beneficial in my compost pile.
I appreciate the helpful info you sent me.
Be well,
Laurie

What's That Bug? does not endorse extermination