214 FAMILY VI.— LOCl'STID^. 



wing-covers, is smaller than in crickets; at rest the tegmina, 

 excepting basal areas, are vertical. 



Prof. Scudder gives the following sub-families of Locust- 

 idse, four of which occur in Minnesota. 



SUB-FAMILIES OF LOCUSTID^. 



A. Body generally winged, tarsi more or less depressed. 

 b. Fore tibiae furnished with foramina near the base; 

 male tegraina, when present, furnished with a tym- 

 panum, 

 c. First two joints of tarsi smooth laterally; hind 

 tibia with an apical spine on each side. 



Pha nerop terinse . 

 cc. First two joints of tarsi longitudinally sulcate 

 ' laterally; hind tibiae with an apical spine on 



outer side only or on neither, 

 d. Fore tibiae without apical spines. 



e. Fastigium of vertex short, crowded by the 

 prominent antennal scrobes; pronotum 

 crossed by two distinct transverse sulci. 



PseudophyUinae. 



ee. Fastigium of vertex extended and free 



from the not prominent antennal 



scrobes; pronotum without, or with 



only one, transverse sulcus. 



Conocephalinas. 

 dd. Fore tibiae with an apical spine on the outer 

 side. (Body generally sub-apterous). 



Decticinx. 

 bb. Fore tibiae without foramina near the base; male 



tegmina without a tympanum Gryllacringe. 



AA. Bod}^ apterous; tarsi distinctly compressed. 



Stenopelmatinse. 

 The first sub-family, Phaneropterinae, contains three 

 groups of insects found in Minnesota. 



