Currently viewing the tag: "food chain"
What's That Bug? does not endorse extermination

Subject: Parasitic larvae explode from lizard a la Alien
Location: Gainesville, Fl
August 25, 2013 8:49 am
So my friend found an ailing lizard (Anolis carolinensis) yesterday in north-central Florida. He thought it might die, so he took it with him in some sort of rescue attempt. Anyway, he looks at it an hour later, the lizard was dead, and the small black dot behind the lizard’s front leg had exploded into a gaping hole filled with large wriggling larvae of some sort. It certainly appears as though they were trying to escape after their host had died. He knew I’m into reptiles, so he showed it to me. The lizard was quite familiar, but the parasites less so. They look kind of like maggots to me, but most fly maggots are in dead things, when these were clearly inside the living lizard and killed it.
Signature: lizard guy

Lizard with Maggots

Lizard with Maggots

Dear lizard guy,
We agree that these look like maggots, but we do not know of any flies that parasitize lizards.  We will continue to do some research, but we are posting your letter and photos in the hope that one of our readers can come to our assistance.

Maggots emerge from Lizard

Maggots emerge from Lizard

 

What's That Bug? does not endorse extermination

Subject: Diogmites salutans (I think)
Location: Ocala, FL
August 2, 2013 10:53 am
I got lucky today and this guy landed on the fence right by me to devour his waspish meal. I believe he is a Diogmites salutans. I thought you might enjoy the photo, it was great to get to watch this strange creature. We are in Ocala, Florida and I get a lot of wasps feeding on my Spanish Needles but this is only the second time I’ve seen a Robber Fly.
Signature: Jenifer in Ocala

Hanging Thief eats its prey

Hanging Thief eats its prey

Dear Jenifer,
Thanks to your photo, it is easy to see how Hanging Thieves in the genus
Diogmites get their common name.  While we cannot confirm the species, you have correctly identified the distinctive genus for this Robber Fly.

What's That Bug? does not endorse extermination

Subject: Blue-eyed Robber Fly (Megaphorus megachile?)
Location: Yallowstone National Park, Wyoming
August 17, 2013 3:14 pm
Hi Daniel!
Just back from Yellowstone/Grand Teton – a spectacular vacation. I saw lots of beautiful winged creatures, but this little blue-eyed fly caught my attention. I am pretty sure it’s a robber fly, and I am pretty sure it’s clutching some prey. I apologize for the bad photo, but it let me get one shot from a distance before it took off. I hope all is well with you!
Signature: Dori Eldridge

Robber Fly with Prey

Robber Fly with Prey

Hi Dori,
We cannot say for certain which species of Robber Fly you have photographed, however we do agree that based on images posted to BugGuide, this looks very similar to the members of the genus
Megaphorus.

What's That Bug? does not endorse extermination

Subject: Blue Dasher with — eggs?
Location: NH, USA
July 20, 2013 9:01 pm
Dragonfly (I think it’s a Blue Dasher). I’m wondering what the little red spheroids are. Are they insect eggs? Was it parasitized by something?
Signature: Joel Stave

Water Mite Larvae on Dragonfly

Water Mite Larvae on Blue Dasher

Dear Joel,
Dragonflies are frequently hosts to Ectoparasitic Water Mite larvae that attach themselves to the Dragonfly while it is still an aquatic naiad.  The Northwest Dragonflier website maintains that when the naiad molts into a winged adult, the larval Water Mites in the genus
Arrenurus crawl from the cast off exuvia onto the still soft body of the winged adult and attach themselves as ectoparasites.  They derive both nourishment from this and the advantage of transportation to a new body of water where they can drop off and mature.  Light infestations do not negatively impact the Dragonfly much, but heavy infestations can be very detrimental to the adult Dragonfly.  Here is another simple explanation on Taos Telecommunity.  We believe you are correct that this is a Blue Dasher, Pachydiplax longipennis, based on photos posted to BugGuide

What's That Bug? does not endorse extermination

Subject: killer fly
Location: northern mi
June 21, 2013 8:32 am
I thinkthisis a killer fly eating a rosebug. I have never seen one with yellow . Thanks for your time
Jeffrey Pomeroy
Signature: jeffrey pomeroy

Robber Fly eats Japanese Beetle

Robber Fly eats Japanese Beetle

Dear Jeffrey,
The predator in your photo is a Robber Fly and many species of Robber Flies are black and yellow, which makes them effective mimics of Bumble Bees.  The prey in your photo is the invasive, exotic Japanese Beetle which does feed on roses.  When they are plentiful, Japanese Beetles can do major damage to foliage and blossoms of roses and hundreds of other ornamental and garden plants.  Our mother who is an avid gardener refers to the damage caused by Japanese Beetles as “lace doilies” because of the numerous holes in leaves which causes them to resemble lace when only the veins remain.

What's That Bug? does not endorse extermination

Subject: I named him Ryno
Location: Costa rica Jungle
April 27, 2013 5:07 pm
This is a little friend I found deep in the Jungle in Costa Rica. Anyone who what he is?
Signature: Ryno

What's That Caterpillar???

What’s That Caterpillar???

Dear Ryno,
We do not recognize this unusual looking caterpillar.  Generally Butterfly Caterpillars are not hairy, but we suspect this might be a Nymphalid Caterpillar.

Keith Wolfe responds to our identification request
Greetings “Ryno” and Daniel, this is a last-instar Caligo atreus (http://janzen.sas.upenn.edu/caterpillars/dblinks/searchplaycat4.lasso?-Search=GCAcaterpillars337&herbivore%20species=atreus).  Note the numerous white tachinid (http://www.nadsdiptera.org/Tach/Gen/tachintr.htm) eggs behind the head capsule, the inevitable doom of which it might possibly escape if pupation occurs before the maggots hatch.
Best wishes,
Keith

Hi Keith,
Thanks for getting back to us on this.  We didn’t realize those were Tachinid Fly eggs.  Good to know.  We hope this Owl Butterfly Caterpillar escapes being eaten alive by the fly larvae.

What's That Bug? does not endorse extermination