Currently viewing the category: "Leaf Beetles"
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Subject: just showed up in october
Location: Burlington, MA
October 6, 2012 10:37 am
We found a swarm all over the side of the garage. Tree in backyard split and thought that might be where they came from.
Signature: Claudia

Black Margined Loosestrife Beetle

Hi Claudia,
We are certain that this is a Leaf Beetle in the family Chrysomelidae, however, we have not been successful identifying it to the species level despite the extensive archive on BugGuide.  The closest matches we could find were the reverse coloration of
Neolema ovalis (see BugGuide) and Phyllobrotica limbata (see BugGuide), though we are quite confident that neither of those is correct.  Perhaps one of our readers will have better luck or notice something on BugGuide that we overlooked.

Eric Eaton identifies the Black Margined Loosestrife Beetle
Got it:  Black-margined Loosestrife Beetle:
Thanks for the challenge!

Thanks Eric,
We were most pleased to read this:  “Imported as a biocontrol to combat purple loosestrife (Lythrum salicaria)”
on BugGuide.

What's That Bug? does not endorse extermination

Subject: Head Like a Parrot with a Black Jacket
Location: Japan, Tokyo
October 8, 2012 12:12 am
Hi, I’m living in Tokyo and discovered this cheeky character feasting on my flowers yesterday 10-06-2012 I’ve searched all over the web and in a few books but can’t seem to place him.
Many thanks!
Signature: Harry

Japanese Poplar Leaf Beetle

Hi Harry,
We love your subject line.  We found your Leaf Beetle on FlickR where it is identified as a Japanese Poplar Leaf Beetle,
Aulacophora nigripennis.  We then verified that identification on Natural Japan where it states:  ” This species is very common. It eats the leaves of wild plants such as gourds (uri), but also attacks commercial crops (e.g. soybeans and carnations).”  The Japanese name is given as “kuro-uri-hamushi.”

What's That Bug? does not endorse extermination

Subject: What bug is this?
Location: Tucson, AZ
September 20, 2012 9:19 am
My son and I were at the pool when we saw this bug in Tucson, AZ. Its body reminded me of a ladybug but the colors and design on it are different. Could you please help us identify this bug?
Thank you,
Signature: Julie

Tortoise Beetle

Hi Julie,
This is a Tortoise Beetle in the Leaf Beetle tribe Cassidini and we believe we have correctly identified it as
Deloyala lecontii based on photos on BugGuide.  On the genus page, BugGuide states:  “larvae and adults feed on plants in the morning glory family (Convolvulaceae).”  After death, Tortoise Beetles lose their lovely metallic gleam.

What's That Bug? does not endorse extermination

Subject: Twelve-spotted cucumber beetle
Location: Naperville, IL
August 26, 2012 8:26 am
Hi Daniel~
These spotted cucumber beetles took up residence the first year I planted my vegetable garden and nearly defoliated every concurbit they came into contact with: cucumbers, naturally, watermelon, squash, canteloupe, as well as mammoth sunflowers. Then I read (on the internet, so it must be true :)) that inter-planting radishes will discourage their presence. The next spring, I may have gone a little wild and scattered radish seeds all over the garden, but sure enough, the radishes now self seed each year in acceptable numbers, and the cucumber beetles are just passing visitors. Other than my little anecdote, I have no idea if the two are related. All the best!
Signature: -Dori Eldridge

Twelve Spotted Cucumber Beetle

Hi Dori,
New gardeners are always writing to us wanting to know how to control garden pests.  We haven’t received many identification requests for Twelve Spotted Cucumber Beetles,
Diabrotica undecimpunctata, but we find your radish tip quite fascinating.  Your photos are also quite beautiful.

Twelve Spotted Cucumber Beetle

Thank you, Daniel.  Our small neighborhood borders on two sides what is now prairie preserve but used to be corn fields a few decades ago.  I have often wondered if the decline I have experienced in spotted cucumber beetles (Diabrotica undecimpunctata) was due to the radish trick (I looked again this morning, and by Googling the the key words, came up with quite a number of such tips) or simply the reverting to nature of the former corn fields, which I understand is a favored feeding ground of their larvae, aka corn rootworms.  I hope you have a successful start to your new semester.  All the best to you.

Hi Dori,
The demise of the corn fields is most likely a factor.


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Subject: Can’t ID this beetle
Location: The Nature Conservancy – Hassayampa River Preserve, Wickenburg, Arizona
August 15, 2012 6:03 pm
I looked through a dozen pages of pictures trying to ID this beetle but didn’t find anything. Can you ID him for me?
Signature: Adam Bloomer

Striped Willow Leaf Beetle

Hi Adam,
It didn’t take us too long to identify your Striped Willow Leaf Beetle,
Disonycha alternata, thanks to the extensive archive on BugGuide.  We took the liberty of cropping your image and repositioning your name on the file so that it would better fit our website format.


What's That Bug? does not endorse extermination

Subject: These bugs are everywhere!
Location: Vaudreuil-Soulanges, Quebec
August 9, 2012 8:59 pm
Hi there,
I’m a bug friendly person(no bug squishing in this house!)and always take the time to really check out and appreciate any bugs I have come across. Now that I have kids, they are really getting into bugs as well.
I’ve been out in the country for 13 years now and have never come across the bug in picture #1, however, this year they are literally everywhere… On the back deck, on the house, in the house, on shrubs, on the cars and garbage cans, etc…The other day my 8 year old son collected over 20 in under 10 minutes just in a small area around our back door. I went to check on my garden the other day and found a bunch on one of my corn stalks. I thought it might be some kind of stink bug because of the shape, but haven’t found a pic of one that matches. Also of all the ones we have collected and shoo-ed out of the house, none of them stank at all. What are they?
While I’m at it, I’ve attached 2 more bug pics that I would like ID’d. I found bug #2 crawling on a rock and was taken by it’s shiny gold green shell/markings.
Bug #3 is not a bug, but a spider. This fat guy has been living above my backdoor and seems to become active only at night. I thought it was some kind of orb weaver, but couldn’t find a match.
Thanks for any help!
Signature: Cindy

Green Stink Bug Nymphs

Hi Cindy,
Normally we do not like to include “bugs” from different categories in the same posting unless they have a distinctive relationship to one another, like predator and prey, however, all of your inquiries are either interesting, timely or unusual, so we are making an exception.  Additionally, all of your photos are quite nice.  The numerous insects are Stink Bug nymphs, and we have been receiving many identification requests for them in the past week.  Despite their black coloration, these are Green Stink Bug nymphs,
Chinavia hilaris, and you can compare your image to this photo from BugGuide.  Another common name for this species is Green Soldier Bug according to BugGuide which states they are:  “extremely polyphagous: recorded from 20 plant families(5); adults and older nymphs prefer developing seeds and fruit. May be a pest on soybean, cotton, fruit trees (esp. peach), and many vegetables.”

Mottled Tortoise Beetle

The green beetle is a Mottled Tortoise Beetle, Deloyala guttata, and according to BugGuide:  “larvae and adults feed on leaves of Convolvulaceae (morning glory family).”

Marbled Orbweaver

The spider is an Orbweaver, and we believe we have correctly identified it as a Marbled Orbweaver, Araneus marmoreus.  This is a highly variable species, but we located a matching photo of a white individual on BugGuide.  It was also found in Canada.

Thank you for the quick reply! The kids and I have enjoyed reading up on our new buggy friends. I’ll definitely be sending in a few more bug pics that I haven’t been able to ID, sometimes typing a general description into Google gets me hundreds of pages to go through, being stuck on dial-up certainly doesn’t help! Liked you guys on Facebook as well :)

What's That Bug? does not endorse extermination