Recorded at the southern part of the island. Whether these specimens may actually be Eirenephilus longipennis (1 - nymph; 2 - adult)?
The label of the photo as follows: Kuriles, Kunashir Island, Stolbovsky hot springs (44°00'59"N, 145°41'53"E), broadleaf forest along geothermal stream, 174 m elev., 29.vii.2011. This species was fairly abundant at the place.
Yes, this should be Ognevia longipennis (Shiraki, 1910) (now Eirenephilus in synonymy with Ognevia).
Hi Ivan! Da, this is Ognevia Ikonnikov, 1911 (= Eirenephilus Ikonnikov, 1911). Nymps are very similar to nymphs of certain Podisma species and the pronotum has characteristic sulcation you can put it in Podismini. I would say that Ognevia longipennis is very likely identification, since this is the most common species in Korea, NE China and Russian Far East. Cheers.
I AM ALMOST SURE IT IS OGNEVIA LONGIPENNIS, NYMPH AND ADULT. AS INDICATED BY COLLEAGUES ABOVE, EIRENEPHILUS IS A SYNONYM FOR OGNEVIA
It is Ognevia logipennis, They tend to live social group when they are in nymph stage.
Josip Skejo. How did you know they are the most common Acrididae in forest mountain areas in Korea? Wow..
Dear colleagues, thanks a lot for your valuable suggestions!
Anton, the label data of this photo as follow: Kuriles, Kunashir Island, Stolbovsky hot springs (44°00'59"N, 145°41'53"E), broadleaf forest along geothermal stream, 174 m elev., 29.vii.2011. This species was fairly abundant at the place.
Howon Rhee, do you know any published references on social grouping of nymphs of this species?
Additionally, does anyone have a published information regarding mass aggregations of these nymphs within preferable sites (see photo)?
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