16 GUIDE TO ORTHOPTERA 



MANTIDAE. 



Only eleven genera of this family are found in the United 

 States and only two of the six subfamilies are recognized, and 

 one of these by but a single species, an interloper from further 

 south, as is the case also with some of the genera of Mantinae, 

 the subfamily to which the others belong. The species are all 

 confined to the southern half of the United States, and most of 

 them to the extreme southern margin. The family is notoriously 

 a tropical one. 



Subfamilies of Mantidae. 



A 1 . Upper surface of middle and hind femora and tibiae 

 rounded ; head unarmed ...... Mantinae. 



A 2 . Upper surface of middle and hind femora and tibiae 

 carinate ; middle of head with an erect process as long as the rest 

 of the head. ........ Vatinae. 



The larger development of this group in the United States 

 would be looked for from its preponderance further south. Most 

 or all of the genera occur also beyond the southern boundaries of 

 the United States, so that we have no endemic genera unless 

 Bactromantis be excepted. 



Genera of Mantinae. 



A !. Inner margin of upper surface of fore coxae not conspicu- 

 ously dilated apically. 



b 1 . Pronotum but slightly longer than fore coxae ; eyes more 

 or less conical ; hind femora armed exteriorly with an apical 

 spine. 



c 1 . Eyes distinctly pointed (conico-acuminate) above ; hind 

 femora delicately incrassate basally, in the 9 nearly twice as 

 long as the pronotum ; tegmina and wings abbreviate or 

 wanting in both sexes; cerci long, distinctly surpassing the 

 infragenital plate. . . . . Yersinia Saussure. 



