A harmful bush-crickets from gorgan area Decorana capitata (uv.)

Author

Plant Pests & Diseases Research Institute, P.O.Box 1454, Tehran 19395, Iran

Abstract

I have observed a very large population of Decorana capitata in the cereal fields of Gorgan area in spring of 1989.This bush cricket has written by Dr. Uvarov at 1917 under name of Ptatycteig capitata Uv. and then at 1933 Metrioptera capitata but at 1941 Dr. Zeuner has described as Decorana capitata (Uv.). D. capitata is closely allied to D. decorate (Fieb.) but differs from D. buctoni with its long ovipositor and truncate sub genital Plate ovipositor of D. capitata is sharply recurved at the base and tapering. General coloration is brownish with black spots (Fig. I). Pronotum without lateral keels and median keel distinct at the base.

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