Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Register
·
Log In
Home
Guide
ID Request
Recent
Frass
Forums
Donate
Help
Clickable Guide
Calendar
Upcoming Events
Registration
is open for the
2024 BugGuide gathering in Idaho
July 24-27
Moth submissions
from
National Moth Week 2023
Photos of
insects
and
people
from the
2022 BugGuide gathering in New Mexico
, July 20-24
Photos of
insects
and
people
from the
Spring 2021 gathering in Louisiana
, April 28-May 2
Photos of
insects
and
people
from the
2019 gathering in Louisiana
, July 25-27
Photos of
insects
and
people
from the
2018 gathering in Virginia
, July 27-29
Previous events
Taxonomy
Browse
Info
Images
Links
Books
Data
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)
»
Eremopedes
»
Two-lined Shieldback (Eremopedes bilineatus)
Photo#1605757
Copyright © 2018
Clifford Powell
Unknown 'Bug' 3070 -
Eremopedes bilineatus
-
Located about 18 miles NW of Roswell, Chaves County, New Mexico, USA
July 31, 2018
Only found one of these.
Would appreciate an ID, please.
TIA
Cliff - - -
tag
·
login
or
register
to post comments
Contributed by
Clifford Powell
on 23 October, 2018 - 1:39pm
Last updated 2 April, 2019 - 5:15pm
Moved
Moved from
Plagiostira
.
…
David J. Ferguson
, 2 April, 2019 - 5:15pm
login
or
register
to post comments
Well shoot
Looks like I still can't tell those genera apart. What characters do you look for to distinguish between the two?
…
Tyler Hedlund
, 3 April, 2019 - 8:51am
login
or
register
to post comments
Plagiostira vs. Eremopedes
Easiest way -
Plagiostira
has a very distinctively shaped pronotum. The the color pattern differs in construction somewhat too, notably on the pronotum. The venation of the tegmina is different in each species, but more closely reticulate in all of the
Plagiostira
than in this species. Genitalia differ significantly too (particularly in males), but the details may be hard to see in a photograph. It's actually easier to distinguish them in the field than in photos, because
Plagiostira
are
so
distinctive in person.
Also, this and
E. kelsoensis
are apparently the only species of
Eremopedes
that have such striking green and white coloring (though
E. scudderi
apparently may come close), so you don't have to look at too many options. [Though I suspect there is actually one more species involved - or - perhaps I'm wrong and this and ones like it are
E. scudderi
? Anyway, the ones from the Great Plains like this one look distinctly different from the ones from further to the southwest, while
E. kelsoensis
actually looks much less different.]
Oh, and in my experience, if you put a
Plagiostira
in a container with any other smaller living thing, the smaller thing will soon disappear. I haven't had that issue with
Eremopedies bilineatus
, and suspect they will only eat plants (????), though other
Eremopedes
can be agressively carnivorous.
Other species in other genera with similar patterning (as far as I can recall) all have very long thin legs.
…
David J. Ferguson
, 3 April, 2019 - 3:36pm
login
or
register
to post comments
Thank you!
Thanks for the characters, I'll be keeping an eye out for those now.
…
Tyler Hedlund
, 4 April, 2019 - 9:12am
login
or
register
to post comments
dawns on me
Maybe I should ellaborate a little on the male genitalia. The differences are species by species, but show an overlapping range of variation between these two genera. So, it's not a diagnostic difference between genera, but a striking one between some of the assorted species. The green and white banded
Eremopedes
are distinctly different from
Plagiostira
though. The upper tergite (plate) of the last segment of the male abdomen has a different shape in each species, sometimes dramatically so (rear edge with a "v"- or "u"-shaped emargination between points in
E. bilineatus
, cut almost all the way through the middle in several of the other species - with or without the points to either side). Also, the tooth on the inner side of the male cerci is in a different place on different species (a bit below the middle in E. bilineatus). Sometimes it's easy to see these in a photo from above.
…
David J. Ferguson
, 4 April, 2019 - 12:35pm
login
or
register
to post comments
.
.
…
David J. Ferguson
, 3 April, 2019 - 3:35pm
login
or
register
to post comments
duplicate comment was here
.
…
David J. Ferguson
, 3 April, 2019 - 3:32pm
login
or
register
to post comments
Moved
Moved from
Grasshoppers, Crickets, Katydids
.
…
metrioptera
, 23 October, 2018 - 6:52pm
login
or
register
to post comments
Shieldback Katydid
Genus
Plagiostira
. I'm not sure on the species though.
…
Tyler Hedlund
, 23 October, 2018 - 2:14pm
login
or
register
to post comments
Comment viewing options
Flat list - collapsed
Flat list - expanded
Threaded list - collapsed
Threaded list - expanded
Date - newest first
Date - oldest first
10 comments per page
30 comments per page
50 comments per page
70 comments per page
90 comments per page
Select your preferred way to display the comments and click 'Save settings' to activate your changes.