Subject:  What is this egg sack from?
Geographic location of the bug:  Decatur, IN
Date: 11/27/2017
Time: 06:32 AM EDT
My grandson and I found this at the bus stop this morning and would like to know what it is and what we should do with it.
How you want your letter signed:  Adventurous G-ma

Oak Leaf Gall

Dear Adventurous G-ma,
This is not an egg sack.  It is an Oak Apple Gall, and it was formed when a Gall Wasp lays an egg on an oak leaf, causing a growth that serves as food for the developing Gall Wasp larva.  Galls do not harm the tree.  Similar images can be found on Buckeye Yard & Garden Online and Missouri Botanical Garden.   Interestingly, Alfred Kinsey, the famous entomologist, studied Gall Wasps before he turned his scientific methods to humans which resulted in the famous (and infamous) Kinsey Reports.  Kinsey founded the Institute for Sex Research at Indiana University and his reports resulted in the publication of the groundbreaking “Sexual Behavior in the Human Male” in 1948 and “Sexual Behavior in the Human Female” in 1953.  They were best selling books that changed the way America and the world think about human sexual behavior.

So…are there wasp  larvae in it or is it empty?

We suspect it is empty.

What's That Bug? does not endorse extermination

Subject:  Fukushima deep sea mutated creature in Orangevale California
Geographic location of the bug:  Orangevale California
Date: 11/27/2017
Time: 06:15 AM EDT
I just need to know if this is a mutated sea creature or something from another dimension coming to steal my soul it looks like Sigourney Weaver in Aliens
How you want your letter signed:  Don’t want to die buy some weird bug I don’t know what it is

House Centipede Carnage

While the humor in your request is amusing, you lived to write about your encounter with this harmless House Centipede and it did not.  Images of House Centipedes that have fallen victim to Unnecessary Carnage are quite common on our site because they seem so frightening to many folks.  House Centipedes are impressive creatures that are very agile on their 15 pairs of legs.  They are nocturnal hunters that will help keep the home free of Cockroaches and other unwanted critters.

Subject:  What am I?  I scared the people around me!
Geographic location of the bug:  San Francisco, CA USA
Date: 11/27/2017
Time: 04:22 AM EDT
Hello, I found this bug crawling across my bathroom floor.  I poured 70% alcohol over it and that stopped it. I took this picture after it dried.  It is about a 1/2 cm.  Should I be scared?  Do you think he was alone…
How you want your letter signed:  Thank you very much, Rick

Ground Beetle

Dear Rick,
This is a harmless (to humans), predatory Ground Beetle in the family Carabidae.  As Ground Beetles go, it is a small individual, with Caterpillar Hunters reaching about an inch and a half in length.  In our opinion, pouring alcohol on a harmless creature is Unnecessary Carnage.

Thank you for your quick response.  Point taken.  When I saw, what I now know to be a beetle, I called in my roommate.  He thought it was a bed bug– and we did kill it.   When we looked up close, we figured out it probably wasn’t a bed bug, but still didn’t know if it might be dangerous.  Now we know.
Thanks, Rick

What's That Bug? does not endorse extermination

Subject:  Cork Lid Trapdoor Spider?
Geographic location of the bug:  Penang, Malaysia
Date: 11/27/2017
Time: 12:09 AM EDT
My friend found a spider that looked like a trap door but could not identified it. Can bugman help?
How you want your letter signed:  mysticz

Trapdoor Spider

Dear Mysticz,
This is a gorgeous Spider.  It has such a distinctive appearance, including the red tips on the legs.  We could not locate any exact matches on the internet, but we did find this image on FlickR of a Tube Trapdoor Spider from Singapore that looks somewhat similar.  We are quite confident your individual is a Trapdoor Spider, but we are not certain to which family it belongs.  The closest visual match we could locate is a posting to Encyclopedia of Life of
Idiops constructor, a member of the family Idiopidae, which Wikipedia calls the Armored Trapdoor Spiders.

Trapdoor Spider

Thanks for the effort Daniel.

Subject:  What is this?
Geographic location of the bug:  Central NJ (Edison)
Date: 11/26/2017
Time: 02:30 PM EDT
I saw this creature as I was taking a walk. It was fairly large in size – about 1 1/2 to 2 inches in size. I saw it just now right after Thanksgiving. I did a reverse image search. Google proclaimed it a stag beetle. Bing returned a lot of pages from Japan. The shapes and colors are correct, but the wings are too small. The two wings on this picture are tiny stubs. Beetles have full wings that cover the abdomen. Hornets have transparent wings.
How you want your letter signed:  David W.

Oil Beetle

Dear David,
Your claim that “Beetles have full wings that cover the abdomen” is true in most but not all cases.  This is an Oil Beetle, a species of Blister Beetle in the genus Meloe.  Oil Beetles are flightless.  There are other species of Blister Beetles with vestigial wings like this Spanish individual, and many species of Rove Beetles like the Devil’s Coach Horse also appear wingless, though their wings are described on BugGuide as “elytra short (about same length as pronotum, or only slightly longer; wings are functional in most), typically exposing 3-6 (usually 5-6) abdominal segments.”

Thank you for your reply. I was beginning to wonder if this was an invasive species.
I did an image search on Bing (Google said it was a stag beetle) and it pointed me to a bunch of Japanese pages (in Japanese, of course) with pictures of very similar looking bugs. One site (via Bing translate) identified it as a “miyamatsuchihanmjou” which wasn’t much help, but there was a note attached calling it a type of blister beetle and warning me not to touch it. (Not that I had any desire to do so).
I guess the Japanese maybe more attuned to nature, but seeing all of these Japanese pictures and none in America, I feared it was an invasive species.
I see that these live in my area of New Jersey and are mainly active in the spring.
Again, thank you for the quick ID.
David Weintraub

Hi again David,
North America also has Oil Beetles that are active in the fall.

Yes. I saw they’re active all year. By the way, this specimen was between 1 1/2 to 2 inches in length – much larger than the ones you have posing by the quarter. I was hoping to have a quarter or some object to put in the picture in order to judge its size, but didn’t have anything. I also resisted the urge to pick it up and move it somewhere with better contrast. I’m glad I did.
I found one species called a “short winged oil beetle”. This specimen was about the size of the one I saw and was also found in New Jersey during freezing weather.
I see the larvae live in flowers, hitch a ride on a passing bee, and live in the hive eating honey, pollen, and bee larvae.
David Weintraub

Subject:  Whose pupal cases (?)
Geographic location of the bug:  southern Colorado, ponderosa pine forest
Date: 11/26/2017
Time: 06:41 PM EDT
Last spring I cut and split some ponderosa pine firewood in the woods behind my house. Some pieces sat up there all summer, and when I brought them down this fall, I discovered these pupal cases (?) on one chunk. I was curious to know what made them.
(Resending because my images might have been too large last time)
How you want your letter signed:  Chas

Exuviae of Fungus Beetle Pupae

Dear Chas,
These are the exuviae or cast off exoskeletons of the pupae of Fungus Beetles, probably
Gibbifer californicus.  Here is a similar image from BugGuide.  According to BugGuide:  “Larvae feed on wood-destroying fungi” and “female lays eggs in bark crevices of fallen rotting logs.”

Dear Daniel Marlos,
Fascinating! thanks a lot — now I know where to go for further research.
It was a standing, dead beetle-killed pine, so decay had already started in
some places on the trunk.
Chas S. Cllifton