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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » True Bugs, Cicadas, Hoppers, Aphids and Allies (Hemiptera) » True Bugs (Heteroptera) » Semiaquatic Bugs (Gerromorpha) » Gerroidea » Smaller Water Striders (Veliidae) » Rhagovelia
Photo#1865679
riffle bugs--genus Rhagovelia - Rhagovelia
Copyright © 2020 Jim Moore1

riffle bugs--genus Rhagovelia - Rhagovelia
Rachel Carson Conservation Park, Montgomery County, Maryland, USA
July 26, 2020
Size: 3 mm?
In a large creek/small river. Moving rapidly and bouncing off one another like ping-pong balls. These photos were shot at 1/2000 of a second.

Images of this individual: tag all
riffle bugs--genus Rhagovelia - Rhagovelia riffle bugs--genus Rhagovelia - Rhagovelia riffle bugs--genus Rhagovelia - Rhagovelia riffle bugs--genus Rhagovelia - Rhagovelia
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Contributed by Jim Moore1 on 29 July, 2020 - 2:35am
Last updated 3 April, 2021 - 1:11pm

Moved
Moved from Semiaquatic Bugs.
… Jim Moore1, 3 April, 2021 - 1:12pm login or register to post comments

Moved
Moved from ID Request.
… Jim Moore1, 3 August, 2020 - 9:48am login or register to post comments

nymphs
They all look like nymphs so you probably won't get a species id.
… Matthew Pintar, 31 July, 2020 - 1:48pm login or register to post comments

 
.
I'd be happy with confirmation of genus level. According to the 2d ed. of Marshall's Insects, Rhagovelia is the only genus that occurs in the area.
… Jim Moore1, 31 July, 2020 - 1:56pm login or register to post comments

 
Rhagovelia
Yes, they're Rhagovelia, though not the only genus in the family in Maryland
… Matthew Pintar, 1 August, 2020 - 11:29am login or register to post comments

 
.
By the way, I have just added my one out of focus shot of a larger individual with them. Could that be an adult? Does it allow a species ID?
… Jim Moore1, 1 August, 2020 - 1:06pm login or register to post comments

 
genus
Still just to genus. Also I don't know what he's referring to. Other genera and species in the family occur in similar habitats, and the common name is often applied to the whole family, so who knows.
… Matthew Pintar, 2 August, 2020 - 1:53pm login or register to post comments

 
.
Great. Thanks! I think what Marshall meant is it's the only genus of "riffle bugs" in the area, and he doesn't apply the name to the whole family.
… Jim Moore1, 1 August, 2020 - 12:40pm login or register to post comments

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