Currently viewing the category: "Rove Beetles"
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Subject: Bug identification
Location: Clemson sc
January 4, 2016 9:58 am
Hi a friend found this bug and we can’t figure out what kind it is some people are saying mole cricket but this bug only has 4 legs and the head is different than that of a mole cricket.
Signature: Anna

Rove Beetle:  Platydracus maculosus

Rove Beetle: Platydracus maculosus

Dear Anna,
This is a Rove Beetle in the family Staphylinidae.  We believe we have correctly identified it as
 Platydracus maculosus thanks to this image on BugGuide.  According to BugGuide, it prefers:  “primarily, deciduous forests and open areas: on carrion/dung, in leaf litter, rotting fungi.”

 

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Subject: Purple and Orange Scorpion-like Bug
Location: São Paulo / Brazil
November 15, 2015 6:03 pm
Found at the Pedra Grande State Park in the city of São Paulo, southeast Brazil in June 2014.
Signature: Guilherme Ramalho

Rove Beetle

Rove Beetle

Dear Guilherme,
Though we have not been successful at determining a species identity, we can tell you that this is a Rove Beetle in the family Staphylinidae, and that it is the most brightly colored Rove Beetle we have ever seen, which makes it puzzling that we were not able to locate any matching images online.  We will contact Cesar Crash who edits our sister site in Brazil, Insetologia, to see if he can provide any additional information.  This pose is a typical threat position of Rove Beetles, and although they expel a foul odor, they are otherwise harmless.  The one exception to that are the Rove Beetles from the genus
Paederus, known as Creechie Bugs in Africa.  According to BugGuide:  “some species contain a toxic chemical (pederin) in their hemolymph which causes contact dermatitis in humans, usually as a result of slapping the beetle and crushing it against exposed skin. The affected area becomes red, swollen, and itchy, causing the skin to peel when scratched.”

Rove Beetle

Rove Beetle

Cesar Crash writes back
Yes, I do! The beauty is in the genus Glenus, we have two on Insetologia:
http://www.insetologia.com.br/2014/11/besouro-estafilinideo-glenus-em-sao.html
http://www.insetologia.com.br/2015/10/besouro-estafilinideo-glenus-em-minas.html
and I guess G. biplagiatus http://www.me.esalq.usp.br/fotos/Coleoptera/Staphilinidae/1728.jpg
Best, Cesar

Rove Beetle

Rove Beetle

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Subject: What’s this ?
Location: Scheeßel, Lower Saxony, Germany
August 29, 2015 2:06 pm
Hi, do you know this nice bug ?
Signature: Peter B.

Rove Beetle

Rove Beetle

Dear Peter,
We believe this Rove Beetle may be
Platydracus stercorarius and there are some very nice images on Eakring Birds.  According to Nature Spot, it “is also quite a large species reaching 2 cm or more in length. The legs and elytra are rust red, whilst the head, thorax and abdomen are mainly black. The head is very square at the back and there are bands of pale pubescence on the apical abdominal segments.”  It might also be the related Staphylinus caesareus.

What's That Bug? does not endorse extermination

Subject: beetle?
Location: The Netherlands
August 26, 2015 8:56 am
Hi,
I am in The Netherlands (europe) and came across this bug. I have never seen it before and was a lot bigger then what I normally see crawling around.
It looks like a bug with a tough shell. Though when he found me a threat, he lifted his backside up as a scorpion and faced me. I have never seen a beetle do that, so it might just be something else entirely.
I am amazed and in awe since I never seen it, while I am always looking around for bugs haha. I find them very interesting. I hope you can help me out!
Thanks,
Signature: Niels

Devil's Coach Horse

Devil’s Coach Horse

Dear Niels,
We are very excited to be able to post an image of a Devil’s Coach Horse, a species of Rove Beetle, from its native habitat.  Most of our images are from North America because this species was introduced and it has naturalized.  We encourage Devil’s Coach Horses in our own garden as they are one of the few creatures that will feed on introduced Snails and Slugs, also from Europe.  Though the Devil’s Coach Horse rears up its abdomen in a threat position, and it will release a foul odor from scent glands, it is a harmless species that poses no threat to humans.

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Subject: Weird Bug That Flies and Terrifies
Location: Asheville, NC
June 5, 2015 2:21 pm
I saw this waiting at the bus stop, took a picture because it was entirely unfamiliar. Then it flew away and I shuddered and hoped it wouldn’t return. But it was cool, I just don’t think I want anything to do with it (but I was curious).
Signature: Wesley Stroupe

Rove Beetle

Rove Beetle

Dear Wesley,
This is a harmless Rove Beetle, and after scouring through images on BugGuide, we suspect it might be
Platydracus immaculatus, which according to BugGuide is:  “now infrequently collected over much of its range.”  We are postdating you submission to go live during our holiday later in June.

 

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Subject: Biology
Location: Nova Scotia, Canada
June 8, 2015 4:46 pm
Our biology class did a lab at one of the beaches in Nova Scotia, Canada. Well doing this lab our group found this small black and reddish brown bug well we were examining a part of the beach.
Signature: – Bio Student

Paederus Rove Beetle

Paederus Rove Beetle

Dear Bio Student,
Your insect is unmistakably a Rove Beetle in the genus
Paederus, and according to BugGuide:  “some species contain a toxic chemical (pederin) in their hemolymph which causes contact dermatitis in humans, usually as a result of slapping the beetle and crushing it against exposed skin. The affected area becomes red, swollen, and itchy, causing the skin to peel when scratched.(3) Extracts of Paederus beetles have been used by the Chinese since at least 739 AD in the medicinal treatment of boils, nasal polyps, and ringworm.”  BugGuide also indicates:  “15 spp. in our area, >600 worldwide(1), just one (P. littorarius) reaches Canada” which would mean your species is Paederus littorarius.  The genus has representatives in many places around the world, and those in Africa are known as Creechies or Acid Bugs because of the caustic chemical they release and the contact dermatitis that results. 

What's That Bug? does not endorse extermination