Currently viewing the category: "Leaf Beetles"
What's That Bug? does not endorse extermination

Gold Bug
Dear Bugman
Hope you can help ID this bug. Found amongst grass/meadow flowers in China, Guangxi. Thought it was a small button at first being about 10mm across, shiny, golden/bronze with a domed transluscent ‘plastic’ disc for protection. Small feelers scanned ahead and when disturbed the four suction cupped feet clamped the body down. May have been able to fly.
Sorry for the poor image.
Bruce

Hi Bruce,
I cannot tell you an exact species name since I don’t have a guide to Chineese Beetles, but it is a Tortoise Beetle, Family Cassidinae. They get their name from their form. Many of them are beautifully colored in life, but the golden hues rapidly fade after death. Many feed on sweet potatoes and other Convulvulaceae, like morning glories.

What's That Bug? does not endorse extermination

Hello Bugman,
I have to tell you just how interesting I have found your website. It has become quite habit forming. I am attaching 3 photos of a bug in various stages. These army of creapers have taken over my Weeping Willow Tree and are eating it up. Can you please tell me what they are and the best way to get rid of them. I live in NorthEast Arkansas.
Thanks so much for your time and knowledge.
Cathy Smith

Hi Cathy,
Despite being called the Cottonwood Leaf Beetle, Chrysomela scripta Fabricius, this pest can also be found on willow trees, as you know. I would check with local agricultural experts regarding control, now that you know what you have. Both the adult on the left, and the larva on the right will eat leaves from the host trees. We found some information on this site.
Good Morning,
Thanks so much for emailing me back so quickly. I am very happy to know exactly what kind of bug this is that is bugging me and my willow tree. I will get in touch with the Agricultural department today. Thanks so much for your time. I hope this email finds you having a wonderful day. Best Regards,
Cathy Smith

What's That Bug? does not endorse extermination

I found a very interesting bug on my sunflowers, it resembles a lady bug in size and shape, but the body, when I found it, was a bright gold, but the wings are a translucent opalescent color. It caught my eye because I thought it was a shiny gold bead stuck to the leaf. When I put the bug in a jar, its color changed to a ladybug red, but without the black dots. I would send a picture, but not able to get one scanned. I live in Lincoln, Nebraska, and know a ladybug when I see it, but I have never seen a gold ladybug, or a gold ANY bug.
Thanks
Dear Joanni,
I love when someone writes in about a new insect to add to our list. You have found a Tortoise Beetle, also known as a Gold Bug, probably Coptocycla aurichalcea var. bicolor, also known as Metriona bicolor. Lutz quotes Harris as saying “When living it has the power of changing its hues, at one time appearing only of a dull yellow color, and at other times shining with the splendor of polished brass or gold, tinged sometimes also with variable tints of pearl. The wing-covers, the parts wihch exhibit a change of color, are lined beneath with an orange colored paint, which seems to be filled with little vessels; and these are probably the source of the changeable brilliancy of the insect.” Lutz also writes that the “larva are called peddlers” because they carry their cast off skins after molting, appearing like a bit of mud or bird dropping. They eat sweet potato and Convolvulaceae, members of the morning glory family.

What's That Bug? does not endorse extermination

Dear Bugman,
I have been gardening or helping to tend to the garden since I was just a wee fella.Most of my life was spent gardening in Ohio.Shorter growing season,not a whole lot of bugs.Cold winters killed alot of the buggers I guess.
we move to Georgia about four years ago.whole new ballgame you might say.Since moving here I have discovered at least forty new insects I never knew.Some of these things can eat entire plants in a night.Well maybe not that bad but close.
I have searched high and low to figure the latest one out.You may be my last hope.So far they have wiped out my potatoes and have since migrated to the tomatos.They are less than a quarter inch in length, soft fat bodies,red except for the head and underbelly,looks like about six or eight legs,black spots.The head is much smaller than the body.Oh and they’re really juicy when you pick them off.
I wish I knew how to send a picture on this stupid thing but I don’t.Any help or pictures for me to look at would be appreciated.
Thanks Doc.
Frank Kovach

Dear Frank,
You have Colorado Potato Beetles, Leptinotarsa decemlineata. The grubs are as you describe and the adults are striped black and yellow. Both adults and grubs feed on potatoes and related plants including tomatoes. This is an example about how a relatively unimportant insect can change its role as the environment changes. this beetle was once native to the Rockies, living on nightshade and other wild members of the potato family Solanacea. When settlers began togrow potatoes, the new food gave the beetles a fresh start. they prospered and spread, till they now exist in practically all of the 48 continental states. Here are some photos and more information can be found on this site:
http://creatures.ifas.ufl.edu/veg/leaf/potato_beetles.htm

What's That Bug? does not endorse extermination