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

Subject: weird scary bug
Location: cape town
January 10, 2017 3:22 am
I keep seeing this weird dinosaure like bug around.
It has a long skinny curved body, unless it’s a sting (I know nothing about insects), and 6 legs.
We never see it flying but, often completely still. Also it’s very big, and tall on its legs.
let me know what you think 🙂
Signature: Sacha

Robber Fly

Dear Sacha,
This is a predatory Robber Fly in the family Asilidae, and though there is not much detail in your image, it does resemble this individual posted to iSpot.  While we would not rule out the possibility of a person being bitten by a Robber Fly, we think that is highly unlikely unless a person tried to handle a Robber Fly.  Predatory Robber Flies generally prey upon flying insects that they catch on the wing.

What's That Bug? does not endorse extermination

Subject: What bugs are these?
Location: Cairns, QLD, Australia
December 3, 2016 7:11 am
Found these in my yard.
Signature: CE

Stilt Legged Fly

Stilt Legged Fly

Dear CE,
Like another of your submitted images, we believe this is a Stilt Legged Fly in the family Micropezidae, but unlike the previous image, we have not been successful in finding any matching images from Australia online.  We are postdating this submission to go live to our site when we are out of the office for the holidays at the end of the month.

Correction Courtesy of Karl:  Banana Stalk Fly
Hi Daniel and CE:
This is actually a Banana Stalk Fly (Family Neriidae); we usually call them Cactus Flies in North America. Depending on which source you read, there are either two or three species in Australia. Of these, I believe Telostylinus lineolatus is the closest match. Regards, Karl

Thanks so much Karl.  Interestingly, we have a mating pair of Banana Stalk Flies from Hawaii in our archives, and that posting is also listed as Stilt Legged Flies.  We will create a Cactus Fly subcategory for both postings.

What's That Bug? does not endorse extermination

Subject: What bugs are these?
Location: Cairns, QLD, Australia
December 3, 2016 7:11 am
Found these in my yard.
Signature: CE

Signal Fly, we believe

Signal Fly, we believe

Dear CE,
We believe this is a Signal Fly in the family Platystomatidae based on this BugGuide image of a member of the genus
Rivellia.  According to BugGuide they are found:  “worldwide, incl. most of the Americas” and “Found on foliage, feces.”  Australian species are represented on FlickR and Discover Life.  Because we will be away from the office during the holidays, we will be postdating this submission to go live at the end of the month.

What's That Bug? does not endorse extermination

Subject: What bugs are these?
Location: Cairns, QLD, Australia
December 3, 2016 7:11 am
Found these in my yard.
Signature: CE

Stilt Legged Fly

Stilt Legged Fly

Dear CE,
This is a Stilt Legged Fly in the family Micropezidae, and we are quite confident we have identified it as the Black Stilt Legged Fly,
Mimegralla australica, thanks to the Brisbane Insect website where it states:  “Flies in this family have very long legs, although the front pair is usually shorter. Their body is slender with patterned wings. They usually mimic either wasp or ant. This Black Stilt-legged Fly is black in colour with two write strips on each wings. All legs are black except the smaller front pair with write tips.”  This species is also pictured on the Atlas of Living Australia.  We are postdating this submission to go live to our site at the end of the month when we are away from the office for the holidays.

What's That Bug? does not endorse extermination

Subject: Found this in a bedroom
Location: Braintree, Essex, England
December 16, 2016 3:23 am
Would really appreciate your help. My daughter found this in her bedroom and having looked at a few websites I have no idea what it is.
Signature: Thanks, Neil

Possibly Bot Fly Larva

Possibly Bot Fly Larva

Dear Neil,
This thing reminds us of a Bot Fly larva, but we have never seen an image of a Bot Fly larva with spiny projections along its body.  We will do additional research and get back to you.  It is possible it gained entrance to your daughter’s bedroom because of a family pet.

Possibly Bot Fly Larva

Possibly Bot Fly Larva

Thank you for tour prompt email.
I hope you have luck finding it, one thing that may help is that we don’t have family pets other than guinea pigs but they live outside.
Thanks again for your help, its much appreciated
Neil

Many Bot Flies are endoparasites on rodents, so the Guinea Pigs may be playing host.

Eric Eaton provides a correction:  Little House Fly Larva
Daniel:
Pretty certain the fly larva is Fannia sp., family Fanniidae.  They used to be in the Muscidae, but are now in their own family.  Known as “Little House Flies.”  Hm-m-m, I may have to do more digging, but the “habitat” would sure fit for that, too.
… I’d like permission to use the Fannia larva images so I can do a blog post.  I found an adult here in Colorado Springs just a couple weeks ago.  I’m attaching an image, in fact.
Happy holidays, safe travels!
Cheers,
Eric

Little House Fly (courtesy of Eric Eaton)

Little House Fly (courtesy of Eric Eaton)

Hi Daniel,
I have attached both images I took as my phone doesn’t keep a record of emails sent for some strange reason.
I am more than happy for him to use the images I did have a look on line at the one he thinks it is and it does look similar other than the one online mentioned 5-8 mm and a black head, I think you can see from the images this was approx 15mm and didnt have a black head. ..
TBH Im more concerned about if its dangerous, how and why it was in my daughter’s bedroom and to stop it happening again.
Thanks again for all your help
Neil

Presumably Little House Fly Larva

Presumably Little House Fly Larva

What's That Bug? does not endorse extermination

Subject: WTB?!
Location: Denver area (larva); east of Phoenix (Thrips & E. acutangulus)
December 12, 2016 10:37 pm
Hello,
I’m trying to positively identify three insects so their Genus species can be part of the file name which will have the Genus species of the flowering plant, too. (You’ll see.)
I’ll include all three images and note that I’m pretty sure I’ve tracked down the fruit fly name, Euarestoides acutangulus, though if you think otherwise, I’m all ears. Or, at least, eyes.
The (I think sawfly) larva is on a pincushion cactus blossom and might be two inches long? This is mid-May along the southern edge of the Denver area (Highland Ranch).
The Thrips is on a Mexican gold poppy, while the fruit fly is on a desert chicory. Both were shot in mid-March, east of Phoenix at about 2,100 feet elevation.
I appreciate your even taking the time to consider these.
Best,
Signature: Mark Bennett

Fruit Fly

Fruit Fly

Dear Mark,
We are more than happy to attempt your identifications, but we do have several requests.  First, please confine any future submissions to a single species, with the only exceptions being closely related species observed at the same time, like two swallowtail butterflies visiting the same blossoms, or if there is a predator/prey relationship documented.  Multiple species not all observed at the same time or place does create problems for us in the archive process.  Also please include higher resolution images that are not cropped too tightly.  We are currently attempting to standardize the images on our site to 800 pixels wide by 550 pixels high at 72 dpi.  All your submitted images are considerably smaller and they are odd shaped crops.  We agree that your Fruit Fly is
Euarestoides acutangulus based on the wing patterns evident in several BugGuide images, but BugGuide has no information on the species, which is reported in Arizona.  It is also pictured on iNaturalist.  According to ResearchGate:  “Information on the life cycle of Euarestoides acutangulus (Thomson), including observations on feeding and reproductive behavior, is presented. The fly is bivoltine in central coastal California, with overwintering occurring as diapausing pupae. Eggs were laid in the staminate florets of the host plant, Ambrosia chamissonis (Lessing) Greene (Compositae), and hatched in 4 days. Larvae fed upon the anthers of unopened florets. The amount of damage caused to a staminate head depended upon the number of larvae reaching maturity and the number of florets within the head. Larvae generally completed development in 23 days. Pupation occurred among the destroyed florets. The pupal period of non-diapausing pupae required 12 days.”  The host plant, according to CalFlora, is ” a dicot, is a perennial herb that is native to California and is also found outside of California, but is confined to western North America.” 

Hello Daniel,
Here are the three images in their uncropped state. Note, these uncropped images are artwork to me, not science. As such, they are entered in competition at a gallery and could, with luck and the favor of the judges, be selected for display. And, with more luck and perseverance, become salable prints. THUS, please observe my copyright restrictions — you may use the images on your web site and archive, for educational purposes, but they can not be reproduced or shared or in any method used for commercial purposes by you, What’s That Bug?, or any other entity without my express permission. If these terms are acceptable, and accepted, then we’re good. If not, then please delete the attached file(s).
Thanks. I do hope these help the organization.
Mark
Mark Bennett Photography
markbennettphoto.com

Rafinesequia neomexicana blossom Euarestoides acutangulus fruit fly desert-chicory 20130316 10cc

Rafinesequia neomexicana blossom
Euarestoides acutangulus fruit fly
desert-chicory 20130316 10cc

Dear Mark,
Thanks for providing the higher resolution files.  Just so you know, the maximum size file we post is 800 pixels by 550 pixels at 72 dpi, so they will not be suitable for reproduction purposes should anyone download images from our site.  We do respect your wishes.  We occasionally allow images from our site to be used for non-profit, educational purposes, but we always request that the person requesting the use place a comment on the posting.  Since we are including a link to your site with the posting, people can contact you directly.  We will be cropping your high resolution images and moving your copyright information so it is embedded in the image.  Thanks again.

What's That Bug? does not endorse extermination