Primnoa tristis Mistshenko, 1951

Storozhenko, S. Yu, 1998, New Data On Grasshoppers (Orthoptera, Acrididae) Of North-East Asia, Far Eastern Entomologist 64, pp. 6-8 : 7

Primnoa tristis Mistshenko, 1951

Primnoa tristis Mistshenko, 1951: 513 , figs. g, i (holotype - ♂, Russia: Primorskii krai, Yakovlevka; in Zoological Institute , St. Petersburg; studied).

Primnoa assimilis Mistshenko, 1951: 511 , figs. v, z (holotype - ♂, Russia: Primorskii krai, upper stream of Komarovka river; in Zoological Institute , St.Petersburg; studied), syn. n.

Primnoa robusta Mistshenko, 1951: 511 , figs. b, zh (holotype - ♂, Russia: Primorskii krai, Krivoi Klyuch on Komarovka river; in Zoological Institute , St.Petersburg; studied), syn. n.

NOTES. This species is tremendously variabile in its general size and apperance, relative length of tegmen, degree of development of the lateral tubercles on male supra-anal plate, the shape of male epiphallus and shape of cerci of both sexes. Width of mesosternal interspace varies from subsquare to transverse within some population. Therefore the above synonymies was established.

MATERIAL. More than 250 specimens are studied (including holotypes of P. tristis , P.

assimilis and P. robusta ).

DISTRIBUTION. Russia: Primorskii krai; China: Heilongjiang [ 4].