Currently viewing the category: "Beetles"

Subject: What is this fascinating critter?
Location: Gold Canyon, AZ
February 25, 2016 5:46 pm
Wandered into our camp in Gold Canyon, AZ. Anyone know what this is?
Signature: Deirdre

Longhorned Borer Beetle

Longhorned Borer Beetle:  Megacyllene antennata

Dear Deirdre,
This is a Longhorned Borer Beetle in the family Cerambycidae, and we need additional time to determine its identity.  We have written to Eric Eaton for assistance.

Eric Eaton Responds
Yes, it is Megacyllene antennata.  Here’s a link:
Thanks for sharing!

Ed. Note:
According to BugGuide, the food plants for the southwestern species are:  “mesquite and (catclaw?)”

Subject: Long pillbug with segmented thorax in my makeup!
Location: Az
February 21, 2016 1:46 am
I found this bug in my makeup in mid February, (and promptly threw out said makeup by the way). I’ve seen them before, usually when deep cleaning the grime out of the bottom of drawers (you know how hair and dust collects in the corners of bathroom drawers, and food in kitchen drawers?)It was about the size of a pantry bug, less than the size of a peppercorn, and just hanging out in my purple eye shadow, no waste/feces around it, in fact, it was sitting more on the exposed metal part of my makeup than in the powder. It looked fuzzy just along the sides and out was hard to tell if it had six or eight legs, but appeared more centipede like. It didn’t seem to do well in water (I freaked out a little when I saw it and flicked it into my just used sink. But it didn’t go down the drain once wet; I figured it was dead (it wasn’t moving), so I snapped a few pics and would come back to check later, leaving it so I could try and look it up). I came back a few hours later to find that it had crawled away and my search on the Internet turned up nothing. And so I found you, the bugman!
Signature: Grossed out but curious

Carpet Beetle Larva

Carpet Beetle Larva

Dear Grossed out but curious,
This is a Carpet Beetle Larva, a common household pest.

Subject: Please help me name this beetle
Location: Sydney Australia
February 19, 2016 5:37 am
This beetle flew through my bedroom window at night.
Kind of heavy, strong grasp, black with interesting pattern – yet flat border around its oval body.
Stayed for awhile, and flew away again..
I’m just very interested in knowing.
Signature: Tyler leigh

Pie Dish Beetle

Pie Dish Beetle

Dear Tyler,
This is one of the Pie Dish Beetles, an unusual group of genera belonging to the Darkling Beetle family Tenebrionidae.  According to Australian Museum:  “The pie-dish beetles’ common name refers to their general pie-dish shape and broad body flanges (rims) around the edges of their thickened, hardened, fore wings (elytra) and the front part of the thorax or second body segment (prothorax). These flanges can often be quite large.”  The site also states:  “Adult pie-dish beetles forage on the ground at night, moving around quite quickly on long legs. Some species return to the same resting-place at dawn, often using mammal (mainly rabbit) burrows to shelter in. Other species are commonly found under pieces of wood, leaf litter, logs or stones. Some species in the genus Pterohelaeus are found under the loose bark of living and dead trees such as Eucalyptus. The adults are most active during the hottest months of the year.  The pie-dish beetles’ flattened body form with expanded flanges may have been an evolutionary adaptation for living for living under the loose bark of Eucalyptus. In the more recently evolved species, the flanges are even more exaggerated, serving to deter predators and possibly to play a minor role in water collection.”  More images can be found on Brisbane Insects.

Pie Dish Beetle

Pie Dish Beetle

Subject: mystery bug
Location: unknown
February 15, 2016 5:26 pm
I work at a grocery store. This bug was found on a door near where we were unpacking plants for the floral department today. We get flowers from Florida, Mexico, Costa Rica, locally (Alabama), and some boxes aren’t labeled. We aren’t sure where he came from or what box he got out of. Sorry we couldnt be more help.
Signature: Rachel from Winn-Dixie

Green Weevil

Golden Headed Weevil, perhaps

Dear Rachel,
This is some species of Weevil in the superfamily Curculionoidea and we believe it is a Broad Nosed Weevil in the subfamily Entiminae which is well represented on BugGuide, a site that is devoted to North American sightings.  We do not believe this is a native species, but we are not certain.  We will contact Eric Eaton for a second opinion, but since flowers may come from many parts of the world, including Columbia and Australia, it may be difficult to get a conclusive ID.  We are going to tag this posting as an Invasive Exotic until we learn otherwise.

Eric Eaton Concurs
I would agree that this is probably a foreign species, maybe in the genus Compsus, but I can’t be positive.  As a result, I don’t have any links to provide, either.

Subject: reddish-brown stag beetle?
Location: Denver, Colorado
February 15, 2016 12:23 am
Hello Bugman,
I found this guy, or gal, on my kitchen floor last August. I was sure that it was a reddish-brown stag beetle, but it appears to be in possession of the wrong antennae. Any help identifying our house guest would be appreciated. Incidentally, I have lived in Colorado since 1989 and have never seen another of these that whole time.
Signature: Cheers, Rusty

Pedunculate Ground Beetle

Pole Borer

Dear Rusty,
You are quite observant to notice that though it resembles a Stag Beetle, this Ground Beetle in the family Carabidae has decidedly different antennae.  We believe this is a Pedunculate Ground Beetle in the genus
Pasimachus based on images posted to BugGuide.  Several members of the depressus group are found in Colorado, according to BugGuide.  Our main reservation is the reddish color of your individual it appears individuals on BugGuide are black.  We will check with Eric Eaton and get his opinion.

Eric Eaton Responds
This is a longhorned beetle, believe it or not.  It is a male “Pole Borer,” Neandra brunnea.  I have yet to find one here myself, but I know there are records for the species here in Colorado.

According to BugGuide, the Pole Borer:  “A robust yellowish-brown to reddish-brown longhorn, resembles a stag beetle, perhaps, but antennae are not clubbed. Specific characters:
tarsi with five visible segments, no process between tarsal claws
eyes emarginate
pronotum subquadrate (almost square), widest at front
elytra without striations.”

Thank you so much for the reply. Thanks, also, for pointing me in a new direction. I was going nuts looking at countless pictures of stag beetles in hopes of finding one with the same antennas.
Cheers Rusty

Subject: unknown bug
Location: Pattaya, thailand
February 12, 2016 10:17 pm
I found this bug trying to crawl throw my open back door in Pattaya, Thailand.
I think it is dying as its movement is very laboured (just flicking its legs and ‘wings’ if that is what they are) I have a huge jackfruit tree in my back garden so was wondering if that is what attracted it in the first place
Signature: freaked of bugs

Mango Stem Borer

Mango Stem Borer

This is a Mango Stem Borer, Batocera rufomaculata, a species whose larvae bore in the stems of several fruit trees including Guava, Mango and Avocado.  According to Plantwise Knowledge Bank jackfruit is one of the host plants for the Mango Stem Borer.