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

”in-line branch” bug pod – don’t know how to describe
Location: Lancaster, Pennsylvania
November 20, 2011 3:09 pm
Any idea what sort of insect grows inside these ”pods” on these shrub branches? When I cut them open there is a 1/4 inch ”grub” in the center.
They make great toy spinning tops.
Thank you for your time and your help!
Signature: cfunck

Goldenrod Galls

Dear cfunck,
This is a sight our editorial staff is quite familiar with having grown up in eastern Ohio.  Interestingly, this is the first submission we have received of Goldenrod Galls despite having this online column for more than 12 years.  These Galls
are formed by the Goldenrod Gall Fly, Eurosta solidaginis.  You may read more about this insect on BugGuidewhere it is stated:  “Larvae form round galls on the stem of certain goldenrods, Solidago. They feed there, then pupate in early spring. Adults emerge April-May and mate near goldenrod.”  Galls are growths on plants that are often caused by insects including flies, wasps and moths, and sometimes by mites.  Galls are abnormal growths that generally do not harm the plant, and though they are usually produced by insects and other arthropods, they can also be cause by other sources.

Goldenrod Gall

Thank you so much for this information!
Kind regards,
Chris Funck


What's That Bug? does not endorse extermination

Yellow Mystery Fly and Spiny Oak Slug
Location: Kirksville, MO
August 30, 2011 12:49 pm
Hi again,
I’m fortunate enough to have a rather nice restored tallgrass prairie a short drive away from my apartment. There is a plethora of fascinating bugs there, most of which can be identified outright, or with a little researching. I have to admit, though, this fly has me absolutely stumped. I’m not sure if this helps, but it was resting on some ironweed when I snapped the photo.
I was rather happy, however, that thanks to your site I was able to quickly identify the spiny oak slugs that had taken up residence on a white oak at work. It seems like every time I walk by that tree I see more of them (and look, but don’t touch).
PS – The tick bites are still itching. If I had known it was going to be this bad, I would have bought stock in the producers of hydrocortisone!
Signature: EB

Fruit Fly

Dear EB,
Thanks to BugGuide, we were able to identify your Fruit Fly as
Icterica seriata, and the only information BugGuide includes on the information page is:  “Larvae feed in the flowerheads of Bidens species.”  The ironweed your individual was resting on is not the Bidens mentioned as a larval food.  We did find this nice profile of Bidens frondosa on the Missouri Plants website.

What's That Bug? does not endorse extermination

artichoke fly (Terellia fuscicornis)
Location: San Jose, CA
March 15, 2011 6:50 pm
Hey Bugman!
I was browsing the site yesterday and was surprised to find that no one had yet identified the artichoke fly, although there were two photos of them in previous postings(albeit probably different species). This photo I have submitted of the fly was taken in my backyard on my artichoke plant. The fly in my photo closely resembles the Terellia fuscicornis on BugGuide because of the V shape hair pattern on the thorax, so I am assuming it is such. According to the California Dept. of Food and Agriculture, ”The artichoke fly (Terellia fuscicornis) was accidentally introduced into California, but is not a CDFA approved biocontrol agent.”
Signature: Vincent, fellow buglover

Artichoke Fly

Hi Vincent,
Thank you so much for taking the time to identify your Artichoke Fly on BugGuide and also for providing the image for our readership.

What's That Bug? does not endorse extermination

Daniel, Flies mating, but what kind?
Location: South Pasadena, CA
February 13, 2011 10:01 pm
Hello. I found this couple on one of my roses last week. They stayed there over twenty minutes, and then flew away still in their embrace. Probably annoyed by me. They were pretty small (perhaps 1/4 inch), and I’m not sure I’m seen this type of fly before.
Signature: Barbara

Mating Fruit Flies, we believe

Hi Barbara,
We believe these are Fruit Flies in the family Tephritidae, which is represented on BugGuide.  The closest match seems to be the genus
Campiglossa, which is represented by several species on BugGuide which notes:  “Adult females oviposit in flower heads of plant species in the family Asteraceae. The short, stout larva of Campiglossa live in the ovaries.

What's That Bug? does not endorse extermination

Location:  Mt Washington, Los Angeles, California
February 9, 2011
Hi Daniel,
This year I finally had my olive produce olives, however ever single olive was infested with maggots or worms.  I saw a couple of these around, and I finally was able to catch one yesterday.  I think this may be the same problem i have had w/ my Quince for years.  I spray organic stuf, but it doesn’t seem to work, and I treally want to keep organic.  I was wondering if this is the med fly or the med olive fly?  So I scanned he hell out of it.  Any suggestions Obi won?

Med Fly

Hi Rourk,
We thought we might be able to post a photo of the Olive Fruit Fly thanks to your email, but alas, the images of the Olive Fruit Fly,
Bactrocera oleae, that are posted on BugGuide do not match your particular Fruit Fly.  According to BugGuide:  “Introduced from the Mediterranean region to California; recorded first time in Los Angeles in October 1998. So far it is restricted to California, where it is considered a serious pest.  It is hoped that a recent (2008) introduction of a hymenopteran parasitoid, Psyttalia cf. concolor will control this pest.”  We would deduce that you probably do have an infestation of Olive Fruit Flies ruining your crop, however, the Fruit Fly in your photo might be feasting on another of the exotic and rare fruits you have growing in your Mt Washington garden.  Your specimen appears to be a Mediterranean Fruit Fly or Med Fly (see BugGuide) and it is ironic that it has appeared at the start of Governor Jerry Brown’s third term in office since he was governor during the infamous Med Fly eradication of the 1980s.  According to BugGuide:  “larvae feed and develop on many deciduous, subtropical, and tropical fruits (citrus, peach, pear, apple) and some vegetables, sometimes tunneling through the pulp and eventually reducing it to a juicy inedible mass” and “One of the world’s most destructive fruit pests, and the most economically important fruit fly species. When it has been detected in Florida and California, especially in recent years, each infestation necessitated intensive and massive eradication and detection procedures so that the pest did not become established. [U. of Florida]  In California, a state government program releases large numbers of sterile males, which are a not-uncommon sight in some places. A female (they have a visible ovipositor on the rear tip of the abdomen) would be a sign of an infestation, and should be reported immediately.”  Given the variety of fruits that may be eaten by the Med Fly Maggots, we would not rule out that the Med Fly has been ruining your olives.

what a cool nice post,I’ll call the ag dept. again, thanks Daniel, and my spelling is sooooo bad.  thanks-Rourk

What's That Bug? does not endorse extermination

What is this yellow bug?
Location: Southeast Michigan, Detroit surburb
November 14, 2010 9:25 pm
This yellow bug was on a peony blossom in my surburban Detroit backyard mid-day earlier this summer. It makes a great photo and I’d sure like to know what it is.
Signature: Jeanette

Fruit Fly

Hi Jeanette,
We identified your insect as a Fruit Fly in the genus
Strauzia based on photos posted to BugGuide.  The patterns on the wings are quite distinctive.

Fruit Fly

THANK YOU for the identification!!!
This is a way cool web site and a fine service to ID the bug for me!  Those wing patterns are most unique, indeed!

What's That Bug? does not endorse extermination