10 



published in 1823, divided the Orthoptera into four families: Forfi- 

 cules ou Labidoui\;s, Blattes ou Omalopodes, Difformes ou Anomides 

 (Mantides and Pliismida), and Grylliformes ou Grylloides (Locusta- 

 rise, Acrydii and Gryllides). 



In 1830, Leach published his elaborate scheme in the ninth volume 

 of Brewster's Encyclopaedia, in which the families under discussion 

 were arranged in three orders, — Dermaptera (Forficularije), Orthop- 

 tera and Dictuoptera (Blattariae) ; his Orthoptera were divided as 

 follows : 



Tribe I. Mantides. 



Fam. I. Phasmida. 

 " II. Mantida. 

 Tribe 11. Achetides (Gryllides). 



Fam. I. Gryllotalpida. 

 " II. Achetida. 

 Tribe lU. Locustides (Locustaria8). 

 " IV. Gryllides (Acrydii) 



Fam, I. Gryllida. 



" II. Acrydida (Tetricidee) . 



Newman, in the second volume of the Entomological Magazine, 

 published in 1834, considered the Orthoptera as a class, and divided 

 them as follows: 



Strips Forficulina, 



Order Forficulites. 

 Strips Achetina (Gryllides), 



Order Achetites. 

 Strips Gryllina (Locustariae), 



Order Gryllites. 

 Strips Locustina (Acrydii), 



Order Locustites. 

 Strips Spectrina (Phasmidae), 



Order Spectrites. 

 Strips Mantina, 



Order Mantites. 

 Strips Blattina, 



Order Blattites. 



Burmeister, in 1838, in his Handbuch der Entomologie, separated 

 the Dermatoptera (Forficulariai) from the other Orthoptera, and di- 



