Currently viewing the category: "Scarab Beetles"

Subject:  I want to know what kind of Rhinoceros beetle
Geographic location of the bug:  Bear, DE
Date: 09/26/2021
Time: 12:57 AM EDT
Your letter to the bugman:  Hi, I found the Rhinoceros   beetles 2days in a row at my yard. But I don’t know what kind of it. I’m so curious which Rhinoceros beetle they are.
I found the first one at 9/24. It was belly up when I found it. So I thought it was dead at first. But it actually moved slowly when I poked with a mulch stick. So I took it to the tree.
This one was dark brown on the left side and there were white point on the right side and head part.
The second one had more white base and brown connected dot design.
They were both cute. Then both had the blond bangs and it was so cool.
I wanna teach my son about that beetle. But I don’t know the name. So please teach me what kind of Rhinoceros beetle.
Thank you!
How you want your letter signed:  Miso-sugar

Male Eastern Hercules Beetle

Dear Miso-sugar,
The easiest way to avoid the confusion of duplicative common names that may differ from region to region is to call insects by their accepted scientific binomial name, and in the case of your submitted Rhinoceros Beetles, they are male
Dynastes tityus, a species with several different common names, though we most often call them Eastern Hercules Beetles.  According to BugGuide, other common names are “Rhinoceros Beetle, Unicorn Beetle” so your initial identification is also acceptable.  This species can be highly variable, and according to BugGuide they are described as:  “Huge size, greenish elytra with variable amounts of dark spots. Some are nearly black. Male has massive horns projecting forward from head and pronotum.”  This is the heaviest beetle in North America.

AKA: Rhinoceros Beetle

Another male Eastern Hercules Beetle

Subject:  Unknown bug
Geographic location of the bug:  Orondo Wa
Date: 08/19/2021
Time: 03:24 PM EDT
Your letter to the bugman:  These guys/gals are all over my yard.
How you want your letter signed:  Gilbert

Ten Lined June Beetle

Dear Gilbert,
This is a Ten Lined June Beetle, a common summer submission from western states.

Subject:  Is this Japanese Beetle going to eat my medical marijuana?
Geographic location of the bug:  Ohio
Date: 07/28/2021
Time: 12:28 PM EDT
Your letter to the bugman:  Dear Bugman,
The Japanese Beetles were terrible this year.  They ate all the leaves off my neighbor’s ornamental plum tree.  They decimated the roses, and at times they seem to want to eat everything in sight.  They ate my friend’s hawthorn.  I keep finding one or two when I inspect the medical marijuana I just started growing this year, but they don’t seem to be eating the plants.  I have tried to research Japanese Beetles and marijuana and I was thrilled with your section on Insects and Cannabis called What’s on my Woody Plant?
So I expect my girls to start producing buds soon.  Do I need to fear the Japanese Beetles eating my marijuana?
How you want your letter signed:  Paranoid Pot Grower

Japanese Beetle on medical Marijuana

Dear Paranoid Pot Grower,
Time may be on your side, especially since the Japanese Beetles you are finding do not appear to be eating the leaves on your plants.  According to BugGuide:  “Larvae feed on roots of many plants. adults feed on more than 350 different species of plants, but are especially fond of roses, grapes, smartweed, soybeans, corn silks, flowers of all kinds, and overripe fruit.”   Your buds are flowers, so they might be attractive to the beetles if there is no other preferred food to be eaten.  BugGuide also states Japanese Beetles are active “mostly: June-Sept” and we suspect your harvest will be after late September, so you shouldn’t have to worry about loosing your entire crop.  According to Holy Moly Seeds, Japanese Beetles eat:  “Mainly roses, grapes, cannabis, beans, strawberries, tomatoes, peppers, grapes, hops, cherries, plums, pears, peaches, berries, corn, peas, and many more. They feed on the foliage of the plant, eating the material in between veins.”  According to Medical Marijuana (Cannabis sativa x indica)
:  “Japanese beetles will eat the entire leaf. Just like home gardens a population of Japanese beetles can kill a whole plant by destroying its leaves so badly it cannot photosynthesize enough to support itself” but you do not seem to be experiencing that.  Medical Marijuana Cannabis Pests says nothing about leaves and buds, but it does state:  “The most serious root pests are flea beetle grubs (Psylliodes attenuata) and white root grubs — Japanese beetles (Popillia japonica) and chafers (Melolontha hippocastani and M. melolontha).”  Please give us an update if you do find the Japanese Beetles are eating your buds.

Subject:  What’s this bug?
Geographic location of the bug:  Southern Ontario, Canada
Date: 07/19/2021
Time: 08:35 PM EDT
Your letter to the bugman:  Hi bugman. These bugs seems to love my raspberry’s, they also love loving on the leaves(as you can see). Do you know what they are?
How you want your letter signed:  Sincerely, Andrew

Japanese Beetles Mating and Eating Raspberries

Dear Andrew,
Let us introduce you to the Japanese Beetle, a species loathed by American gardeners, especially those who grow roses, for over 100 years.  According to BugGuide:  “earliest record in our area: NJ 1916.”

Subject:  What’s this beetle?
Geographic location of the bug:  Northern New Jersey, USA
Date: 07/01/2021
Time: 05:28 PM EDT
Your letter to the bugman:  My cat found this Beetle on the floor in my house, can you help me ID it? Can’t say I’ve seen this one before. Thanks!
How you want your letter signed:  From Joshua Topp

Odor of Leather Beetle

Hi Joshua,
You did not mention if this beetle smelled like leather.  It looks to us like
Osmoderma eremicola which is pictured on BugGuide and which is commonly called the Odor of Leather Beetle because according to BugGuide it has a:  “strong odor of ‘Russian Leather'”.  The Odor of Leather Beetle was our Bug of the Month back in September 2015.

Odor of Leather Beetle

Subject:  Unknown bug
Geographic location of the bug:  Lancaster california
Date: 06/28/2021
Time: 11:14 PM EDT
Your letter to the bugman:  This bug was found in our front yard tonight.  Its the same size as a june bug, but i have never seen anything like it.
Lancaster is in the high desert.
How you want your letter signed:  Scott

Ten Lined June Beetle

Dear Scott,
This is a “June Bug.”  This is one of Daniel’s favorite summer sightings, a Ten Lined June Beetle,
Polyphylla decemlineata.  Daniel first encountered a Ten Lined June Beetle in the eighties hiking in the Angeles Forest.  Then when he began teaching at Art Center in 2002, he would see them attracted to lights at the hillside campus during the summer, but it was not until 2015 that he first encountered one in the Mount Washington offices of What’s That Bug?  Since then there are yearly sightings of multiple individuals.  Your individual is a female.  The male Ten Lined June Beetle has much more According to BugGuide:  “Larvae live in soil.  Adults are attracted to lights at night.”  According to Wiki Bugwood:  “Eggs are laid in soil and larvae of the tenlined June beetle feed on plant roots. They have a wide host range and are known to chew on grasses, perennials, trees and shrubs. (On rare occasion they can cause significant damage to roots of woody plants, with pines being most often injured.) In fall, grubs preparing to overwinter move deeply into the soil, returning near the soil surface with returning warm soil temperatures in spring. In the spring of the third season after eggs are laid pupation is completed and the adults emerge. Although the tenlined June beetle causes little plant injury it is an impressively large, well-marked insect that commonly attracts interest. Furthermore, adults when disturbed can produce an impressive defensive display, hissing loudly by forcefully expelling air from their spiracles. This may also be accompanied by male beetles spreading and fanning out their large clubbed antennae. However, the insects are harmless.”

Ten LIned June Beetle