Currently viewing the tag: "Aquatic Bugs"

Subject:  Beetle
Geographic location of the bug:  Kentucky
Date: 03/28/2020
Time: 11:39 PM EDT
Your letter to the bugman:  What is this never seen one before. 11:35pm march
How you want your letter signed:  Ellis

Water Scavenger Beetle

Dear Ellis,
We believe your aquatic beetle is a Water Scavenger Beetle in the family Hydrophilidae which is well represented on BugGuide.  Many aquatic insects, including Water Scavengers, are able to fly from pond to pond and some species may be attracted to lights.

Subject:  Spikybugs in garden pond
Geographic location of the bug:  Norfolk, United Kingdom
Date: 03/23/2020
Time: 08:29 AM EDT
Your letter to the bugman:  Hello, At first I thought these creatures were pieces of pond weed. However, on observing them for 10 minutes or so, I see they are ALIVE and they appear to be interacting with each other.  The are located in one small part of a garden pond. They appear to have a sucker on one end. I replaced the bug in the photo back in the pond! Thank you for any help in identification.
How you want your letter signed:  Jo

Caddisfly Larva

Dear Jo,
This is the larva of a Caddisfly, an aquatic naiad that will eventually metamorphose into a flying insect that somewhat resembles a moth.  Caddisfly larvae construct a shelter from twigs, shells, pebbles, and other debris, and different species of Caddisflies construct different types of cases.  This image on Ed Brown Wildlife and Nature Photography looks exactly like your individual.  We are making your submission our Bug of the Month for April 2020.

Hello Daniel,
Thank you so much for this information – and so quickly!  I’m sure our caddis flies will be honoured to feature as your Bug of the Month!
Your site is wonderful. I’m just about to buy the Kindle version of your book, which I must get through Amazon UK, as US Amazon will not accept an order from my UK account.
Here’s wishing you and all concerned at What’s That Bug? the best of health in these difficult times.  And many thanks again for the information.
Kind regards,

Subject:  Bugs rescued from pool
Geographic location of the bug:  Huntsville, AL
Date: 08/21/2019
Time: 02:17 PM EDT
Your letter to the bugman:  We found several of these swimming around in our pool.  They are obviously water bugs if some variety, but my guess is they are immature, making them harder to identify.  Any clues to what they might grow up to be?
How you want your letter signed:  Brown family

Dragonfly Naiads

Dear Brown family,
These are Dragonfly Naiads, the aquatic larval stage.  If they are allowed to grow in your pool, you will have adult flying Dragonflies after their final metamorphosis.

Dragonfly Naiad

Subject:  Found dozens dead by the river
Geographic location of the bug:  Western Massachusetts
Date: 08/14/2019
Time: 08:45 AM EDT
Your letter to the bugman:  Hello bugman-
I was walking by the river this morning and found dozens of these bugs dead on small rocks. I cannot identify them. Do you know what they are? And is it normal to come across what seems like a mass death? Thanks for any insight you can provide and keep up the amazing work!
How you want your letter signed:  Best wishes, Lucy

Stonefly Exuviae

Dear Lucy,
These are not dead insects.  They are the exuviae or shed exoskeletons of Stonefly naiads.  The aquatic larvae of Stonflies are aquatic, and when they approach maturity, they climb out of the water and molt for the final time, emerging as winged adults.  You did not encounter a “mass death” but rather, evidence of a mass emergence.

That is amazing! Thanks so much for letting me know. I’ll read up on this. So cool…
Every day in the woods is a new adventure. So much to learn and be awed by.
Thanks again for taking time to explain. I truly appreciate it.
Warmest regards,

Subject:  biting swimmer in pool
Geographic location of the bug:  Queen Creek, AZ
Date: 06/08/2019
Time: 04:38 PM EDT
Your letter to the bugman:  We have found this type of bug in our Arizona pool (more than once). It swims very fast, it is not a water boatman, the legs are different and all go the same direction. Also it swims belly down. It has 6 legs, 2 small antennae, and it appears to use a bubble on its underside to help it go up to the surface and down again. It also bites (or stings), and if a person is in the pool nearby, it will make a beeline for them. Very aggressive for a little creature. (the 3rd photo is not 2 bugs, but a reflection on the side of the glass it was in).
Nobody seems to be able to identify it. Thank you in advance for your help!
How you want your letter signed:  Zonie Girl

Water Scavenger Beetle

Dear Zonie Girl,
Thank you for pointing out and for having documentary images showing the position of the legs while swimming.  The is a Beetle, and based on information on BugGuide, including “Aquatic forms may superficially resemble Dysticidae but can be easily distinguished by antennae. Many have keeled sterna. The adults come up for air head first, and move hind legs alternately (Dysticidae come up for air tail first and move hind legs together, like oars)”, we conclude this is a Water Scavenger Beetle in the family Hydrophilidae.  Though the bite might be an annoyance, we do not believe it poses any threat to humans.

Water Scavenger Beetle

Thank you for the quick response! I looked these up online, and yes, that is exactly what this bug is.

Water Scavenger Beetle

Subject:  Found multiple of the same type of Bug in pond.  What is it?
Geographic location of the bug:  Massachusetts
Date: 06/05/2019
Time: 07:57 PM EDT
Your letter to the bugman:  Found this in the pond in my backyard, no idea what it is.
How you want your letter signed:  Alexander

Water Tiger

Dear Alexander,
These are Water Tigers, the predatory larvae of a Predaceous Diving Beetle in the family Dytiscidae.