Subject: Predatory bee killer!
Location: Tucson, AZ
August 20, 2014 5:39 pm
This enormous predator buzzed down to enjoy its dinner on an elk antler in my yard – what is it?
Signature: Alicia

Giant Robber Fly eats Bee

Giant Robber Fly eats Honey Bee

Dear Alicia,
This is one of the best feeding Robber Fly images we have received all summer.  This is a Giant Robber Fly in the genus
Promachus, a genus well populated in our archives this season due to all the images we have received of Red Footed Cannibalflies.  This is a different member of the genus, and we believe it is Promachus albifacies, a species with no unique common name.  You can compare your individual to this image on BugGuide.

What's That Bug? does not endorse extermination

Subject: Strange Green Thing
Location: Brownwood, Tx
August 20, 2014 7:13 pm
This thing is located in a garden in Brownwood, Tx. The thing on its back seems to be attached.
Signature: thegnatfly

Clavate Tortoise Beetle Larva

Clavate Tortoise Beetle Larva

Hi thegnatfly,
This is the larvae of a Clavate Tortoise Beetle,
Plagiometriona clavata, and you can verify our identification on BugGuide. The attached thing is dried fecal matter.

Subject: Stink bug eater
Location: Northwest Georgia USA
August 19, 2014 5:57 pm
I saw this huge fly eating on a stink bug at the pool. I took a photo of it thinking it may be a species of dragon fly. There were several Dragon flies around with honey bees in their mouths. . Any clue what this is?
Signature: Scott

Red Footed Cannibalfly eats Stink Bug

Red Footed Cannibalfly eats Stink Bug

Dear Scott,
This is a marvelous image of a Red Footed Cannibalfly that we can tag as Food ChainRed Footed Cannibalflies are large, predatory Robber Flies.

What's That Bug? does not endorse extermination

Subject: What is it?
Location: Oceanside, NY
August 19, 2014 8:20 pm
Don’t have a clue. This bug, feasting on Japanese Knotweed, could be a bee, a fly or even a moth, as far as I know…..
Signature: CarlF

Tachinid Fly

Tachinid Fly

Hi CarlF,
This is a beneficial, parasitic Tachinid Fly, but we cannot tell you the exact species at this time.  Tachinid Flies are often very host specific and they are often important biological control agents that parasitize other insects and arthropods.

Tachinid Fly

Tachinid Fly

Subject: Daniel – What’s This Fly?
Location: Hawthorne, CA
August 19, 2014 6:19 pm
Hello,
I thought I’d discovered all of the flies that could possibly come to our little patch, but here’s another. Can you please help? It spent a lot of time on catnip blooms and the adjacent native geranium (I think I have it properly distinguished from geranium.) It is very shy and moves fast, but came back over and over again.
Signature: Thanks, Anna Carreon

Bee Fly

Bee Fly

Hi Anna,
We believe we have correctly identified your Bee Fly as 
Dipalta serpentina based on this BugGuide image.  According to BugGuide:  “Larvae are parasitoids of pupae, and perhaps also larvae, of antlions (Myrmeleontidae)” and “In Calif. species is most abundant in August and September” which makes your sighting right on schedule.

Bee Fly

Bee Fly

Thanks!  We just love sighting “new to us” creatures in the back.
Anna

Subject: What is this?
Location: Kelowna, BC
August 19, 2014 8:44 am
A friend posted a picture of this and nobody knows what it is. She lives in Kelowna BC.
Signature: Courtney

Male California Prionus

Male California Prionus

Dear Courtney,
Though is it named for the Golden State,  the range of the California Root Borer,
Prionus californicus, extends well beyond California as you can see from the sighting data on BugGuide.  According to BugGuide:  “Larva feed primarily on living deciduous trees (oaks, madrone, cottonwood) and are also recorded from roots of vines, grasses, and decomposing hardwoods and conifers. Will also attack fruit trees growing on light, well-drained soils (e.g. apple, cherry, peach).”  This individual is a male which can be distinguished from the female by his developed, distinctly sawlike antennae.