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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Grasshoppers, Crickets, Katydids (Orthoptera) » Long-horned Orthoptera (Ensifera) » Katydids, Camel Crickets, and relatives (Tettigoniidea) » Katydids (Tettigoniidae) » Shield-backed Katydids (Tettigoniinae) » Metrioptera » Roesel’s Katydid (Metrioptera roeselii)
Photo#951528
Unidentified grasshopper in marsh - Metrioptera roeselii - male
Copyright © 2014 Tim Martin

Unidentified grasshopper in marsh - Metrioptera roeselii - Male
Finzel , Garrett County, Maryland, USA
June 23, 2014
Photographed at Finzel Swamp Nature Conservancy Preserve.
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Contributed by Tim Martin on 6 July, 2014 - 11:56am
Last updated 6 July, 2014 - 4:04pm

male nymph of a roesel's katydid, Metrioptera roeselii
Moved from ID Request.

This is an interesting find; this is an introduced species spreading from the Montreal area. Maryland is very far south for it, and there might not be other records from the state.
… metrioptera, 6 July, 2014 - 4:04pm login or register to post comments

 
Thanks
I hadn't realized that there were any introduced kaytdids (and I should have said katydid originally, sorry, I notice the antennae now). I saw several of this at that site that day.
… Tim Martin, 6 July, 2014 - 4:12pm login or register to post comments

 
sounds like an established population
It will be interesting to see if they continue to spread.

On another note, there are four introduced katydids in the U.S. Only one other might be expected to arrive in MD. You can see the list here, at the list of non-native arthropods of north america.
… metrioptera, 6 July, 2014 - 4:16pm login or register to post comments

 
Thanks for the information
I actually live in Alabama, I was on vacation in Maryland. I didn't see any katydids on the list would be in my state any time soon but I am going to look at the rest of the list to be sure.
… Tim Martin, 6 July, 2014 - 4:33pm login or register to post comments

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