ACRIDIIDAE ACRIDIINAE 49 



between coxae ; tegmina linear, lateral, distant, 

 with only a few longitudinal veins ; abdomen 

 of female tapering regularly to a pointed tip ; 

 ovipositor normally exserted. 



Asemoplus Scudder. 



e' 2 . Face rather strongly oblique, the angle it makes 

 with the fastigium varying about from 55 to 67 ; eyes 

 elongate, almost or quite twice as long as broad ; portion 

 of metasternum lying behind the lobes subtriangular, 

 not greatly broader than long; tegmina linear and 

 lateral or absent. . . Aptenopedes Scudder. 



Of these genera Melanoplus is the dominant type and the most 

 prolific in species of any North American Orthoptera, having 

 within our borders alone one hundred and twenty species or 

 more. Podisma (Pezotettix Burmeister) is the most peculiar in 

 distribution, its eight species being confined to high altitudes or 

 latitudes and to two great districts, one in the west from Alberta 

 to New Mexico, one in the east from New York and Ontario to 

 Maine. The other well endowed genera belong mostly to the 

 western half of the continent, Aeoloplus with ten species being 

 found from the Yellowstone to Mexico ; Bradynotes with seven 

 species confined to the extreme northwest ; and Hesperotettix with 

 seven species having much the same range as Aeoloplus but wider, 

 one species being confined to the eastern half of the continent and 

 found indeed only on or near the Atlantic border. Of the genera 

 with two or three species each, Aptenopedes and Paroxya are 

 confined to the Gulf or the Gulf and Atlantic States, Campylacan- 

 tha to the plains and prairie region from Nebraska to Texas, 

 Paraidemona to southern Texas and Poecilotettix to the southern 

 part of the Pacific coast. Of the remaining genera with one 

 species only in the United States, Gymnoscirtetes and Eotettix 

 are confined to Florida ; Asemoplus to the extreme northwest ; 

 Hypochlora, Dendrotettix, Paratylotropidia and Phoetaliotes 

 range between the Rocky Mountains and the Mississippi from 

 various points northerly between Alberta and Texas ; Phaedro- 

 tettix, Rhabdotettix and Cyclocercus are found in southern Texas ; 



