From the monthly archives: "August 2004"

bug in bend oregon
Dear bugman
i found your site today after i found this weird bug in my BED. It looks to me like some kind of larva, maybe even a termite? I don’t usually freak out about bugs but i do not like bugs in my bed i was hoping you could help me out it looks to me like it has the head of an ant but flatter. it has pinchers or a mouth or what ever that i can see it also has six legs and the rest of it silghtly resembles a worm or caterpilar i killed it olny because in was in my bed. i had just woken up and didn’t like the fact that it was sleeping with me all night. now i have a dog but she has been with my boyfriend for a couple of days and this thing moved fairly fast so i don’t know how it got in there. I deffinatly don’t want any more so if it is a larva i want the rest gone too. I Live in Bend Oregon don’t know if that helps. oh yeah i have had it in a sealed container and maybe its the plastic but it sort of stinks.

It looks to us like a beetle larva of some type. Larvae with forms like that are predatory, which means it was hunting prey and somehow found its way into your bed. Do not worry about an infestation. We are forwarding the photo to a beetle expert to see if he can narrow down the possibilities.

What type of spiders, with bumps on their backs?
Hello there,
When my mom first started putting some plants in her greenhouse earlier this year, We found a couple of small spiders, which appeared to have 2 horns / bumps on their backs… After the plants were done in the greenhouse, and we moved them out out, we thought the spiders left, but it seemed one moved around to the other side of the house, and a couple others appeared…
They’ve grown quite a bit, and were curious to what type of spiders they are? They are about 15 – 20 mm big…
Today I caught 2 flies for each of them, They were really quite fast at grabbing them and spinning them into a ball.
I tried to attach a couple of different angles of pictures I took, so you could see the bumps on its the back.
We live in Hanna, Alberta 🙂
Thanks, Zac

Hi Zac,
Sorry I don’t recognize your species, but I can tell you it is from the group known as Orb-Weavers. These spiders build a classicly shaped web and wait for prey. Keep feeding them flies and they will grow to maturity.

I’m having trouble with these 2 bugs. The first one I thought was a seed bug, it has 4 antenna segments, but I don’t see ocelli anywhere. It’s wings aren’t fully developed so I can’t look at the veins or anything.

It has large front femora shaped kind of like crustacean claws.. it’s white, almost clear. I’ve included pictures. They are both rather tiny bugs so I had to shoot the pictures of them through a dissecting microscope.

Since both of your images are of immature Bugs, exact identification is rather difficult. The bug you think is a Seed Bug, we believe to be of the family Corimelaenidae, the Negro Bugs. Borror and Delong write: “The Negro Bugs are small (3 to 6 millimeters in length), broadly oval, strongly convex, shining black bugs that are very beetlelike in appearance. The scutellum is very large and covers most of the abdomen and wings. These insects are phytophagous and are fairly common on grasses, weeds, berries, and flowers.” Lutz adds: "…Tibia with two or more rows of distinct spines.” Essig places Negro Bugs in the Family Cydnidae. He writes: “The Common Negro Bug, Thyreocoris extensus … is a very small, shining black bug 3 to 4 mm. long slightly elongated, convex with cream or orange line on the sides of the elytra.”
The white nymph with the crustacean claws we believe to be an immature Ambush Bug, Family Phymatidae.

Euphorbia Bug
really scary looking bug
Thanks for ID’ing the two bugs I asked about yesterday. I have another bug which might be another immature assasin bug. It has spiky protrusions over most of it’s body, but the head shape and beak are similar to the Reduviidae. The antennae are interesting though. The next to last segment is completely flat and wider than all the other segments in the antennae. Also it has no wings, but that could just be because it’s immature. It was found in a grasslands area.
The other is a beetle, I think it’s either a flea beetle or a case-bearing leaf beetle. It’s hind femora are enlarged, but it also has yellow patches on the elytra where most flea beetles have solid colored elytra.
Thanks again,

Hi Dave,
We agree that your nymph looks like an immature Assasin Bug, but we are unsure of the species. As you know, identification guides often only show adult forms, which can differ greatly from the nymphs. We are more inclined to believe it is a young Coreid or Leaf-Footed Bug because of the size of the rear legs.
Ed. Note: We just received a tip from an expert who gave us the following information.
“Was just surfing the web when i came across your web page and figured I might mention/ correct what you guys were thinking might be an assassin bug. This is indeed a coreid, as you thought, and more specifically Chariesterus antennator, sometimes called the Euphorbia bug. Hope that helps. You can view the adult on this site

We thought you would enjoy seeing another pretty luna moth that has been lounging on our front porch welcoming visitors since yesterday (8-3-04). Since then, it has moved from vertical to horizontal !! Not really exerting itself to much. We are in Dublin, OH (outside Columbus).
Kevin and Lorraine

Thanks so much Kevin and Lorraine,
We are rotating your photo to the vertical position to maximize the size as well as to include the ruler.

Large black insect in northern Quebec
Recently while on vacation in Quebec (Saguenay Fjord area), I saw this rather large insect on some wildflowers on the side of the road. Taking its long antennae into account, it was at least 3 inches or more in length. Any idea what it could be?

Hi Josh,
You have sent in a photo of one of the Long Horned Borer Beetles from the genus Monochamus. The larvae make a buzzing sound when they feed, hence they are called Sawyer Beetles. Most species of this genus attack felled or dead pines. We are checking with an expert to get an exact species name. Our beetle expert Dan wrote back: “if this dude is indeed black as it looks in the pic, then it is probably Monochamus scutellatus.

Not a nice bug
This morning (8/3/04) I had an ugly encounter with this bug. It bit me on the back of the neck. I think it might be an assassin bug because it resembles the pictures of the other assassin bugs on your site. However, the colors on it are very bright yellows and neon greens on black. The first set of legs are thick and curved; the rest are thin and straight. It has the mouth parts of an assassin. Its bite felt like a BAD bee sting. I thought that I would share and see if you could confirm what it is. I have it displayed on the bulletin board for my fifth grade class and I would love to be able to tell them with certainty what it is.
Thank You,
Meredith Barthel

Hi Meredith,
You have an Ambush Bug, Family Phymatidae. These are True Bugs and closely related to Assasin Bugs, hence the similarity in appearance. According to Borror and Delong: “The Phymatids are small stout-bodied bugs with raptorial front legs. … Most of the Ambush Bugs are about 1/2 inch in length or less, yet they are able to capture insects as large as fair-sized bumble bees. they lie in wait for their prey on flowers, particularly goldenrod, where they are excellently concealed by their greenish yellow color. They feed principally on relatively large bees, wasps, and flies.” They do have venom, hence the pain in your bite. As you know, their bite is painful, but not dangerous. I believe your species is Phymata erosa.