286 STUDIES IN AMERICAN TETTIGONIIDAE (oRTHOPTERA) 



The present geographic race has been frequently recorded as 

 S. curvicauda from the southeastern United States. 



The characters given by Brunner in his description of laticauda 

 are somewhat misleadmg. The lateral angles of the pronotum 

 are only very slightly more rounded than in c. curvicauda, while 

 the production and apical cleavage of the subgenital plate offers 

 no differential factor. The lateral angles of the pronotum in 

 strigata are very much more broadly rounded and it was Brunner's 

 undue emphasis on this character which caused Scudder to name 

 as a mere color form of the present insect that aberrant species, 

 which can be further separated at a glance by the very decidedly 

 narrower tegmina. 



As S. c. horealis is the* race of the extreme northern portions 

 of the range of curvicauda, so S. c. laticauda is the race of the ex- 

 treme southern portions of the range of .that species. This race 

 is chiefly distinguishable by its larger size, the proportionately 

 narrower tegmina (by taking averages of the entire typical series 

 before us we find that in curvicauda curvicauda the tegminal 

 width is contained in the length of the same very little over 

 4^ times, in c. laticauda nearly 5 times), slightly more rounded 

 lateral angles of the pronotum, somewhat larger produced pis- 

 tillate portion of the supra-anal plate of the male and decidedly 

 larger ovipositor and subgenital plate of the female, with the 

 former much more weakly bent upward and the ventral margin 

 more broadly arcuate. 



Measurements (in millimeters) of extremes 

 Material intermediate between S. c. curvicauda and S. c. laticauda 



& 



Orange, Virginia (1) 



Charlotte, N. C (3) 



Stone Mountain, Ga. . . (1) 

 Doucette, Texas (2) 



Length 

 of prono- 

 tum 



6.2 

 6.4-6.5 



6.3 

 6.2-6.3 



Length 

 of tegmen 



38.3 

 37-38.7 



40.2 

 37-37.4 



Greatest 



width 

 of tegmen 



8.3 

 7-8.1 



7.4-7.7 



Length 



of caudal 



femur 



30.5 

 30.6-32 



31.6 

 30.9-31.1 



Length 

 of subgeni- 

 tal plate 



8.2 



8-8.2 



8.4 



7 9-8.1 



