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What's That Bug? does not endorse extermination

Nut or Acorn Weevil, we think

What is this thing?
October 25, 2009
I found this bug on the edge of my fishtank. It is now October 25th.
Tree C.
Central Florida

Nut or Acorn Weevil, we believe

Nut or Acorn Weevil, we believe

Hi Tree C.,
This is a Weevil, a member of the largest family of Beetles.  Often exact identification from a photo is impossible.  That said, we believe this is a Nut Weevil or Acorn Weevil in the Tribe Curculionini.  There are several images that look similar on BugGuide, but they are not identified to the species level.

Nut Weevil or Acorn Weevil, probably

Nut Weevil or Acorn Weevil, probably

Citrus Root Weevil

Please dear bug people
September 5, 2009
This bug was chewing on a Zanthoxylum flavum in Bahia Honda SP.
Susan
Bahia Honda Key, Florida Keys

Citrus Root Weevil

Citrus Root Weevil

Dear Susan,
WE believe this is one of the Citrus Root Weevils in the genus Pachnaeus.  There are two species indicated on BugGuide
, the Blue-green Citrus Root Weevil, Pachnaeus litus, and the Northern Citrus Root Weevil, Pachnaeus opalus.  We don’t believe we can distinguish which species you have.  BugGuide does not provide any information on the food preferences nor the life cycles of these Citrus Root Weevils.  Apparently both species are native, but citrus is not native, so it is entirely possible that your Zanthoxylum flavum or West Indian Satinwood is a native host.  The larvae of the Citrus Root Weevils feed on the tree roots, but adults generally feed on leaves as your photo indicates.  We located a pdf online entitled Pachnaeus Root Weevils in Peach at Gainesville by W.B. Sherman that may have information you find helpful.  Other information we found indicates that this native species is never plentiful enough to cause significant damage.

Little Leaf Notcher Weevil, we believe

Beetles Eating My Jamaica Dogwood
August 24, 2009
I was planning on using insecticide to control them ( between these, mealy bugs, and a massive scale infestation I’m getting desperate) but while I was taking these photos a Dingy Purplewing butterfly landed on the tree so I may just have to learn live with them.
Tad
Cutler Bay, FL

Little Leaf Notcher Weevil

Little Leaf Notcher Weevil

Hi Tad,
We are relatively certain that this is a Little Leaf Notcher Weevil, Artipus floridanus.  We did a web search of “white weevil florida and were quickly led to a BugGuide page.

Little Leaf Notcher Weevil

Little Leaf Notcher Weevil

I didn’t realize it was a weevil, I kept looking at leaf beetles.
After a closer look it turns out to be this weevil:
http://www.whatsthatbug.com/2008/02/23/little-leaf-notcher-weevil-invasive-species-from-sri-lanka/
According to this document ” http://www.doacs.state.fl.us/pi/enpp/ento/entcirc/ent412.pdf ” many of the host plants are in my yard.
Thanks again

What's That Bug? does not endorse extermination

Weevil from Puerto Rico: Green Immigrant Leaf Weevil

Unknown weevil Costa Rica
July 17, 2009
Hi WTB!!
I have a photo of a weevil as my screensaver that looks a lot like the glittery weevil you are having trouble identifying. I took the photo from one of your reader’s website. You can view more photos of the weevil there. Father Sanchez has it listed as Polydrusus and he is located in Puerto Rico. http://www.kingsnake.com/westindian/
Keep up the great work!
Andrea with the anatomically correct butterfly tattoos :) Hollywood, CA
Puerto Rico

Green Immigrant Leaf Weevil

Green Immigrant Leaf Weevil

Hi Andrea,
How nice to hear from you again.  We have also had email exchanges with Father Sanchez.  We love his website.  We are linking to BugGuide’s page on the Green Immigrant Leaf Weevil, a European species that has naturalized in North America.  Though we are inclined to agree that this weevil and our Costa Rican Weevil look the same, we would really like to get an expert opinion on that.  Thanks so much for providing this information.

Unknown Costa Rican Weevil may be Green Immigrant Leaf Weevil

Wood carved and glittered weevil
July 13, 2009
Hi bugman-
I recently went to Costa Rica for my honeymoon (6/21-6/28) and came back with tons of pictures…of insects. I thought I’d share these pictures of a weevil I saw one night climbing up a wall. We were on our way to dinner, camera in tow, when out of the corner of my eye I saw a glittering green, gingerly moving splotch. Upon closer inspection, I noticed that it was a beetle. This little dude looks like someone carved him out of wood and then had their child sprinkle a spring shade of glitter all over its back. He didn’t want to stay too still, but decided that he’d pose for a couple of shots…hope you like him.
insect fan
Costa Verde, Manuel Antonio, Costa Rica

Unknown Costa Rican Weevil:  cosmetically enhanced or not???

Green Immigrant Leaf Weevil perhaps

Dear insect fan,
We are a bit stumped by your weevil, and we hope one of our readers will be able to assist in the identification.  It really does look like it has been embellished with glitter.  We do know that in certain places in Central America, insects are used as living jewelry.  Sometimes beautiful insects are just affixed to small chains and pinned to clothing.  Other times insects may be painted or bejeweled. This image does almost look to “glittery” to be natural.

Update
Unknown weevil Costa Rica
July 17, 2009
Hi WTB!!
I have a photo of a weevil as my screensaver that looks a lot like the glittery weevil you are having trouble identifying. I took the photo from one of your reader’s website. You can view more photos of the weevil there. Father Sanchez has it listed as Polydrusus and he is located in Puerto Rico. http://www.kingsnake.com/westindian/
Keep up the great work!
Andrea with the anatomically correct butterfly tattoos :) Hollywood, CA
Puerto Rico

Hi Andrea,
How nice to hear from you again.  We have also had email exchanges with Father Sanchez.  We love his website.  We are linking to BugGuide’s page on the Green Immigrant Leaf Weevil, a European species that has naturalized in North America.  Though we are inclined to agree that this weevil and our Costa Rican Weevil look the same, we would really like to get an expert opinion on that.  Thanks so much for providing this information.

Update from Karl
August 6, 2009
Catching up on weevils (3 in 1 – sorry about that)
Hi Daniel:
The first part of this is just FYI – a great internet resource. I found a little time to go back and catch up on some wonderful weevils that caught my attention as they were posted.  One of my favorite resources for this sort of thing is the digitized version of the Biologia Centrali-Americana (58 volumes!). It is a little difficult to navigate through, but what an incredible storehouse of information! The volumes on insects were originally produced between 1879-1915, but they still stand up as an incredible body of work. The two Costa Rican weevils were identified from this site. Cheers.  K

Daniel:
The Green Immigrant Leaf Weevil (Polydrusus sericeus) is a relatively tiny (5-7 mm) weevil accidentally introduced from Europe. Although it has become wide spread in North America (I have seen quite a few this year on the Canadian prairies), I don’t know if it has made it as far south as Costa Rica. I think this gorgeous creature is actually in the genus Exophthalmus (a reference to those big, bugged-out eyes?), and the species is probably E. carneipes (Curculionidae: Entiminae).  At 9-12 mm it is roughly twice as large and could certainly catch someone’s attention climbing up a wall. I couldn’t find out much about the species, other than that it occurs in Costa Rica and Panama. A great find and a very nice photo from “insect fan”.  There is another very nice image of the same (unidentified) weevil here.
Regards.
Karl

Unknown Weevil from Costa Rica

Beetle in Costa Rica
Sat, Jun 13, 2009 at 9:49 PM
Hi,
I was walking my dog today in the mountains above the central valley of San Jose, Costa Rica when I came across this beautiful beetle. Can’t tell you too much about it other than it was about 1.5 inches in length and that the ends of its legs were beautiful. I’ve been scouring the internet to find out more about this thing (is it some sort of weevil?) but having limited knowledge in entomology I think I’ll leave this to an expert.
Thomas W.
Bebedero (Escazu), Costa Rica

Unidentified Weevil from Costa Rica

Unidentified Weevil from Costa Rica

Hi Thomas,
We are still sifting through our backlog for our week away from posting, hence the delay in responding.  This is a beautiful Weevil, but we haven’t the time at the moment to try for a species identification.  Weevils are in the family Curculionidae, and according to BugGuide, it is the:  “Largest family of beetles in the world with more than 40,000 species worldwide, and 2,500 species in North America.”  We hope one of our readers had an opportunity to identify your Weevil and can supply us with an answer.

Update from Karl
August 6, 2009
Catching up on weevils (3 in 1 – sorry about that)
Hi Daniel:
The first part of this is just FYI – a great internet resource. I found a little time to go back and catch up on some wonderful weevils that caught my attention as they were posted.  One of my favorite resources for this sort of thing is the digitized version of the Biologia Centrali-Americana (58 volumes!). It is a little difficult to navigate through, but what an incredible storehouse of information! The volumes on insects were originally produced between 1879-1915, but they still stand up as an incredible body of work. The two Costa Rican weevils were identified from this site. Cheers.  K
Daniel:
Re: Unknown Weevil from Costa Rica (Beetle in Costa Rica) – Jun 13, 2009
This weevil is in the genus Cratosomus (Curculionidae: Conoderinae [=Zygopinae]), probably C. punctulatus. The species is quite wide spread; particularly common in Mexico, but ranging south to Peru, and east to Trinidad. The species is apparent highly variable in appearance and ranges from 13-23 mm in length (i.e., big). Regards.
Karl

Diaprepes Root Weevil

Beetle my friend photographed
Mon, Jun 8, 2009 at 7:18 PM
Hello,
My friend posted a picture of this beetle she came across and was curious as to what kind it is. Found in their house in Orlando, FL.
James
Orlando, FL

Diaprepes Root Weevil

Diaprepes Root Weevil

Dear James,
Your friend has photographed the invasive exotic Diaprepes Root Weevil, Diaprepes abbreviatus. Though it is beautiful, this Caribbean native has naturalized in Florida “where it has become a serious pest especially of citrus and woody ornamentals” according to BugGuide. BugGuide goes on to report: “The California Dept. of Food & Agriculture has issued a flyer containing the following information: ‘The weevil was accidentally introduced into Florida in the 1960s and caused extensive damage. It has been intercepted in shipments of plants to California.’ Said to feed on some 270 different plants, it’s described as ‘a significant threat to both urban and agricultural trees and plants.’”

Red Palm Weevil from Thailand

Big orange head beetle
Thu, Feb 26, 2009 at 2:20 AM
Hi, I saw this beetle moving slowly over rocks during the day in the garden. I only had my phone camera which is not great but you should have some idea. It has big black eyes, which at first I thought were decoys to make it look bigger. The bug was about the size of a big man’s thumb with a long orange proboscis. Wasn’t bothered by my getting close to it.
Chris
Chiangmai Thailand

Unknown Weevil

Red Palm Weevil

Dear Chris,
All we have time to do is to post your photo, and we hope to be able to identify the species of Weevil in the family Curculionidae this weekend. A Weevil this size and this distinctive should not be too difficult to properly identify. To be more accurate, the orange body part is the thorax.

Immediate Update:
As soon as we posted, we decided to look up the Palm Weevil from the Southeast that looks quite similar. The Palm Weevil, Rhynchophorus cruentatus, can be found on BugGuide. When we researched the genus and Thailand, we found a pdf on the Red Palm Weevil, Rhynchophorus ferrugineus.

Unknown Blue Weevil from Brazil

Brilliant
Fri, Feb 13, 2009 at 10:32 AM
This impressive colorful bug was found in a park , near home, where a i use to make some shots of bugs.. Lokkas a weevil, any could say more?
Thanks a lot
Brutamonte
Brazil

Unknown Blue Weevil

Unknown Blue Weevil

Dear Brutamonte,
We believe we have received an image of this gorgeous blue Weevil from Brazil at least once before, but we were not successful in properly identifying it. We do know that it is a Weevil, a type of Beetle. Hopefully, one of our readers will be able to assist us in a proper identification.

Unknown Blue Weevil

Unknown Blue Weevil

Update:
Actually the Weevil we posted in January 2008 is a very different Blue Species.

Update: Unknown Blue Weevil from Brazil
Tue, Feb 24, 2009 at 9:22 AM
Hi Daniel:
You would think that such a striking creature would be relatively easy to track down – but not so. The weevils are a truly enormous and diverse family of coleopterans and, as often happens in taxonomy, the position and naming of this one has changed a bewildering number of times. Thanks to several wonderfully descriptive accounts from the 1800s, the golden age of bug collection, I was able to follow a trail forward that led to the modern genus Ericydeus (Curculionidae : Polydrosinae: Naupactini). There are approximately 16 species in the genus, 2 from North America and the rest from Central and South America. I believe Brutamorte’s weevil is E. sedecimpunctatus, based on early descriptions and reported distribution (throughout central Brazil), but I can’t be certain. The link provided is for a closely related species, E.  schonherri; a specimen collected in French Guyana. Regards.
Karl
http://translate.google.com/translate?hl=en&sl=fr&u=http://www.entomoservice.com/igalerie_1.0.5/%3Fimg%3D952&prev=/search%3Fq%3DEricydeus%26start%3D40%26hl%3Den%26sa%3DN

Update from Karl
August 6, 2009
Catching up on weevils (3 in 1 – sorry about that)
Hi Daniel:
The first part of this is just FYI – a great internet resource. I found a little time to go back and catch up on some wonderful weevils that caught my attention as they were posted.  One of my favorite resources for this sort of thing is the digitized version of the Biologia Centrali-Americana (58 volumes!). It is a little difficult to navigate through, but what an incredible storehouse of information! The volumes on insects were originally produced between 1879-1915, but they still stand up as an incredible body of work. The two Costa Rican weevils were identified from this site. Cheers.  K

Re: Unknown Blue Weevil from Brazil (Brilliant) – Feb 13, 2009
I didn’t plan to revisit this one, but I have another update (or perhaps and alternate identification). I stumbled upon this image of a weevil specimen from the Natural History Museum in Vienna and it appears to be the very same as the one posted by Brutamonte. The name is given as Polyteles coelestina (Curculionidae: Entiminae). Unfortunately, I was unable to find any more information about it and I am not fully convinced that the identification is correct. It certainly wouldn’t be the first time that an old museum specimen was misidentified. Regards.
Karl

Costa Rican Bottlebrush Weevil

Costa Rican beetle
Mon, Feb 9, 2009 at 12:57 PM
We were in Costa Rica this January, and found this beetle on the floor of the patio one evening. I’d estimate it was 4 or 5 inches long. The people we were staying with hadn’t seen anything like it before. I’m curious what type of beetle it is, and if the orange “fuzz” on it is part of the beetle, or some sort of pollen or fungal infection.
Dawn
Costa Rica (Central Pacific)

Weevil from Costa Rica

Weevil from Costa Rica

Hi Dawn,
We haven’t the time at the moment to identify the species, but this is a Weevil. We are relatively certain we have identified this species in the past and it is in our Weevil archives. The fuzz is a characteristic of the weevil, and is neither pollen nor fungus.

Thanks so much for your response! I did look through the archive before writing, but missed the “earlier posts” link. It is in there, and it looks like it’s a Bottlebrush Weevil ( Rhinostomus barbirostris) .
Dawn

Thanks for doing our research Dawn. We were certain we had identified it once before.

Clarification:
Daniel:
You are quite right, this weevil has appeared on WTB before, in fact it has been posted at least twice (Jordan from Costa Rica – 12 March 2007; Lisa from Panama – 02 May 2006). It was previously identified as the ‘Bottlebrush Weevil’ (Rhinostomus barbirostris) and the Cuban Weevil (Rhina oblita). To clarify (or perhaps confuse) Rhinostomus barbirostris was formerly Rhina barbirostris, and Rhina oblita has been changed to Rhinostomus oblitus. They both look quite similar but their distributions are different. The reported distribution for R. oblitus is Cuba, Hispaniola, the Bahamas and perhaps Mexico and Brazil. R. barbirostris occurs in southern Mexico, Central America and most of South America. Based on that, I suggest it is probably R. barbirostris, the Bottlebrush Weevil. Both species feed on a variety of palms but are not considered a pest because they tend to target old or otherwise stressed trees. Regards.
Karl

Acorn Weevil

Ugly Bug
Fri, Jan 23, 2009 at 5:59 AM
What kind of bug is this? Is it dangerous? I found it indoors about a week ago in our living room, on our couch.
Mr.
oklahoma city, ok

Acorn Weevil

Acorn Weevil

Hi Mr,
This is an Acorn Weevil in the genus Curculio which can be verified on BugGuide. The snout is quite distinctive for Nut Weevils and Acorn Weevils.

Grain Weevil

tiny black bugs
Fri, Jan 2, 2009 at 10:43 PM
These bugs recently appeared in a house that we have been living in for the past 11 months. We have seen them in the washer and dryer room and our bathroom. They are mostly seen crawling on walls. We use a quarterly pest control service and the last time they came they sprayed in the attic. I am calling them to come back for a “call back” but I was hoping to know what they are sooner.
Thanks, bugged out in Texas
Houston, TX

Grain Weevil

Grain Weevil

Dear Bugged Out in Texas,
This is a weevil, possibly a grain weevil.  Is there stored pet food nearby?

Hi Daniel,
Thanks for the quick response.  The pest control (Truly Nolen) is here and you “nailed it”!  It is a weevil.  He showed us a book with insects and to be exact it is a rice weevil.  They were infested in a bag of bird seed that we have in a cabinet in our dining room.  The bag contains milo, millet, cracked corn and sunflower seeds.  The corn is what it looks like it was after.  The strange thing is that we have had the plastic bag of seed since the summer and never noticed them until we came back from my grandparents house in Oklahoma.  We brought back a back of nuts and had them in the same cabinet.  Two days later we noticed the bugs.  Not sure if that is it but we can draw a pretty good conclusion that is were they came from.
WE can’t thank you enough for helping identify these pesky things!  I’ve included a link that shows what they look like in our bird seed.
Have a Happy New Year!
John and Melissa Roschal

Grain Weevil

Grain Weevil


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