Currently viewing the tag: "Aquatic Bugs"
What's That Bug? does not endorse extermination

Subject: Spikey Black inch long larvae/caterpillars?
Location: Sydney, Australia, NSW
April 4, 2017 4:41 am
So a friend of mine found these larvae(?) in his fish pond, dozens of them, they breathe through a snorkel and are almost an inch long. I have yet to see them in person, but I don’t seem to be able to find anything that fits closely and hes never had them before. Maybe of note is that we have had a lot of rain lately so perhaps they are thriving because of all of the fresh rainwater and his pond only has floating duckweed and salvinia. Does he need to be worried about his smaller baby fish if these are carnivorous?
Signature: Ashton

Mosquito Larvae

Dear Ashton,
What kind of fish does your friend have?  We would think fish would gobble up these Mosquito Larvae.  Your friend might want to consider adding some Mosquito Fish to the pond to help eliminate these aquatic larvae that will eventually become blood-sucking, flying Mosquitoes.   Here is a Getty Images image to support our identification.  Here is a larval comparison image from NSW Arbovirus Surveillance & Vector Monitoring Program.  Mosquito Larvae are commonly called Wrigglers.

Thank you for the photo references.
He has koi fish which logically should be eating them.
Its weird though ive never seen wrigglers as large as he was telling me as i personally collect them to feed to my aquarium fish at home. What he explained was that they were the size of grubs. Hes collected wrigglers for his smaller fish for years and has never had ones like these so maybe theyre from a different species of mosquitoe to usual.

Update:  April 10, 2017
On second look, they look a lot like the culex variety. Will have to research mosquitoe varieties in my local sydney area.

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Subject: Beetle ??
Location: London UK
January 24, 2017 4:28 am
Found this gem ( not ) in my fruit from the supermarket. Never seen anything like it. Because it was in with imported fruit I’m guessing it’s not from here ( United Kingdom ). I thought it was a Cockroach, but no antennae . It’s almost 2 inches long.
Signature: Kd

Giant Water Bug

Dear Kd,
This is not a Beetle nor is it a Cockroach.  It is a True Bug and we feel quite certain it is a predatory Giant Water Bug in the family Belostomatidae.  You may be correct that it was imported with fruit as the family is not listed on the British Bugs site.

Thank you Daniel,
Was a bit of a shock finding it.  After receiving your email, I googled it and now know that the one I found is only half size  (( shudders )).
Thanks again
Kd

What's That Bug? does not endorse extermination

Subject: Weird insect in NC Linville Gorge
Location: 3050 ft, Shortoff Mountain, Linville Gorge Wilderness, North Carolina.
January 21, 2017 12:19 am
My name is Tyler Goulet. I am in “The Linville Gorge Facebook Group”. One of the members posted a picture and video of what I believe to be some sort of nymph. My friend is a fly fisherman who has taught me a little. Yet even he can’t identify it. We believe it may have been carried in by a bird. The insect was found in the pond on Shortoff Mountain in the Linville Gorge Wilderness. Which is 3050 ft in elevation.
Attached are two pictures of the insect. One in someones hands, it located closer to the edge of water near his thumb and index finger on the left hand. Also a screenshot of the gps coordinates.
Thank you in advance for your services
Signature: Signed by you and to me.

Fairy Shrimp

Dear Tyler,
This appears to be the aquatic nymph or naiad of a Damselfly.  Adults Damselflies are winged and they will frequently lay eggs in temporary ponds.

Correction:  Fairy Shrimp
Thanks to a comment from Black Zarak, we took a closer look and we are inclined to agree that this is a Fairy Shrimp.  The quality of the image is not great, but upon extreme magnification we are able to make out the swimming appendages.  This reminds us that with all the rain we have experienced in Los Angeles the past week, Fairy Shrimp may be hatching in the Rio de Los Angeles State Park in the Cypress Park neighborhood of Los Angeles.

Thank you for the reply.    The group also agreed that it is a fairy shrimp.    But I can’t find any information that would say they’re native to North Carolina.     I could only find states like Oregon, California and Arizona.     Thank you so much again.

Good morning Tyler,
During the 1960s, our editorial staff remembers caught Fairy Shrimp from the order Anostraca in Ohio in seasonal, vernal ponds that dried out in the summer.  BugGuide has data on sightings from nearby Georgia, Kentucky and Massachusetts, but the lack of reports from North Carolina just means no images have been posted from that state.  The Vernal Pools site has some nice information on Fairy Shrimp in Massachusetts and contains this statement:  “Winter eggs can be carried from pools to pool by traveling animals, or, in the case of pools that dry out completely, picked up in the wind and be blown to other pools. For reasons currently unknown to scientists, there is an uneven level of population in a pool from year to year. In a single pool, fairy shrimp may be abundant for several consecutive years and absent the next.”  The Pennsylvania Natural Heritage Program site states:  “Two species of fairy shrimp found in Pennsylvania are the eastern fairy shrimp (
Eubranchipus holmani) and the springtime fairy shrimp (E. vernalis). The most frequently encountered species in Pennsylvania is the springtime fairy shrimp. E. vernalis has straight, smooth antennae, while E. holmani has longer antennae with medial serrations. The image to the right is a close-up view of male Eubranchipus vernalis second antennae. ”

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Subject: Water Scorpion?
Location: Germantown, Ohio
October 19, 2016 3:49 pm
I found this dude in the creek today while fossil hunting. I picked up a piece of granite from the water and there he was. I believe he’s some some of sediment deposit feeder as I saw him eating dirt off the rock. I took a few pictures and a video and set him back in the water. Let me know what you think!
Signature: Carly W

Stonefly Naiad

Stonefly Naiad

Dear Carly,
This looks like the aquatic larva of a Stonefly, known as a naiad.  Compare your individual to this individual posted to BugGuide.

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Subject: Is this a water scorpion?
Location: St Clair, N.S.W 2759
September 19, 2016 10:28 pm
Hi, my son and I are very big on insect spotting, this one popped up on our back porch and we have never seen anything like it. I have been researching for days to try figure out what he is and water scorpion is the closest I have come but we live out in the suburbs with no lakes,rivers or ponds anywhere.
Signature: Mummy and Noah

Water Scorpion

Water Scorpion

Dear Mummy and Noah,
This is indeed a Water Scorpion, and they are able to fly great distances in search of water.  According to Sportsman Creek Conservation Area:  “They can ambush fast swimming prey such as small fish catching them between their front legs and stabbing them with their pointed probiscus.  Known as Toe-biters able to inflict a nasty nip although this specimen played dead when disturbed. Water Scorpions are also capable fliers and inhabit waterholes over much of Australia.”  According to the Queensland Museum, Australian Water Scorpions are in the genus
Laccotrephes.

What's That Bug? does not endorse extermination

Subject: What’s this bug
Location: Black Hills National Forest SD
September 15, 2016 6:30 pm
Hello, these bugs were swarming around our house, falling on the roof like rain drops from the sky. We live in the Black Hills in South Dakota. Lots of ponderosa pine trees and some spruce. We saw them in September.
Signature: Dan

Backswimmer

Backswimmer

Dear Dan,
This is a Backswimmer, an aquatic True Bug that is also capable of flying.  Are you currently experiencing a dry spell?  It is possible that a nearby pond is drying out and these Backswimmers are seeking a new aquatic environment.  You can compare your image to this BugGuide image of
Notonecta undulata.  Of the family, BugGuide notes:  “Aquatic bugs that often swim upside-down. When resting at the surface, body is typically tilted with the head downward.”  BugGuide also notes that they are also commonly called “Water Bees, Water Wasps” because they occasionally bite swimmers.

Thanks so much. That’s exactly what it is. Not knowing was driving us crazy.  Dan

What's That Bug? does not endorse extermination