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AN INTRODUCTION TO ENTOMOLOGY 

 Family GRYLLOBLATTID^ 



This family was recently established by Dr. E. M. Walker ('14) 

 for the reception of the species described below, which, while showing 

 striking affinities to the Orthoptera, differs remarkably from all 

 other known members of this order. Some writers who favor the 

 breaking up of the order Orthoptera into several orders, regard this 

 species as the type of a distinct order of insects, the Notoptera. 



Grylloblatta campodeijormis. — In this the only species of the family 

 known, the body is elongate, slender, depressed, and thysanuriform 



Fig. 307. — Grylloblatta campodeijormis. (After Walker.) 



(Fig. 307). The legs are fitted for rtmning, the tarsi are five-jointed 

 and lack pulvilli. The cerci are long, about as long as the hind tibiae, 

 slender, and eight-jointed. The ovipositor is exserted and resembles 

 that of the Tettigoniidse. The eyes are small and the ocelli are absent. 

 The adult male measures 16.5 mm. in length; the female, 30 mm. 

 As yet, this species has been found only in the vicinity of Banff, 

 Alberta, and in Plumas Coimty, CaHfomia. It is found under stones, 

 at high altitudes, and runs like a centipede. 



