NUMERICAL CLASSIFICATION OF THE ORTHOPTEROIDS, WITH SPECIAL REFERENCE TO THE GRYLLOBLATTODEA

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Abstract
A numerical taxonomic analysis was performed using eight exemplars of the orthopteroids. Two suites of attributes were used in a non-weighted dissimilarities analysis. The same suites of attributes were analyzed for a similarity index with dendrograms based on the shortest connection network of Prim. The Tettigoniidae and Gryllidae are in agreement with current systematic placement within the Ensifera. The Caelifera diverge early from ancestral stem lines and suggest a greater separation from the Ensifera within the Orthoptera than generally accepted for their systematic position. The dendrograms suggest that the Blattaria and Mantodea show a relationship closer than the present subordinal rank permits. In the dendrograms the Grylloblattodea and Dermaptera form a remote complex from the other orthopteroids and each qualifies as a separate order. Modern classification of the orthopteroids considers the Dictyoptera, Dermaptera, Orthoptera, and Phasmida as orders. My analysis elevates the Grylloblattidae to the ordinal level as Grylloblattodea.

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