166 STUDIES IN AMERICAN TETTIGONIIDAE (oRTHOPTERA) 



success depends upon following each species out in each character 

 and basing conclusions upon the net result. Should single characters 

 be taken as all important, confusion is an almost certain result. 

 We give below in tabular form the extremes, found in the species 

 in tegminal and ovipositor length (in millimeters), and have also 

 included the general form of the ovipositor and the results ob- 

 tained from counting the spines of the ventro-external margins 

 of the caudal femora. The ventro-internal margins of the caudal 

 femora are furnished with one to two spines in but five specimens, 

 two of C. fasciatus fasciatus and three of C. attenuatus, in the 

 very large series examined. 



Tegmina Ovipositor Spines of ventro- 



Brachyp- external margins 



terous of caudal femora 



allardi* 

 f. fasciatus 

 f. vicinus 

 spinosus* 



gracillimus 

 brevipennis 



resacensis* 

 neni oralis 



occidcntalis 



slriclus 

 hygroyhilus 



Macropterous 



cf 6.7-6.S straight. 



9 5.3-5.4 15.3-16.8 



o" 11.7-19.3 straight. 



9 10-21.1 7-9.9 



d" 16.4-18.7 9.9-13.1 straight. 



9 15.6-18.5 10.6-13.9 7.5-13 



cf 14.3-15. 1 very weakly 



9 16.2 

 c^ 14.4-19.1 

 9 15.3-20.7 

 cf 13.9-16.3 



9 14.9-18.1 

 & 



6-10.3 



5.4-9.3 



7.1-8.8 



normally 0. 



23% 1 to 5. 

 none. 



normally 0. 

 12.5% 1 to 3. 

 normally 0. 

 4% 1 to 2. 

 normally 4 and 5. 

 curved, broader, extremes 4 to 6. 

 7-8.8 

 straight. none. 



7.8-10.9 



straight or 

 nearly straight. 

 8.9-14.7 

 straight. 

 15.2-15.6 

 7.2-9.2 distinctly 



curved. 

 4.3-7.7 7.8-9.8 

 7-9.4 very weakly 



curved to nearly 

 straight. 

 4.3-6.9 8-15.7 

 5 . 1-7 . 3 nearly straight. 

 2.8-5.8 17.7-32.3 

 10.3 weakly sigmoid, 



broader. 

 9 18.6 10.4 



'^ A single female from Appomattox, Virginia, exhibits an intermediate con- 

 dition between the brachypterous and macropterous forms of the present 

 species; tegminal length 10.5 mm. 



9 5.6-6 



9 



15.7-16.7 



9 16.4 

 & 15.7-17.8 

 9 15.4-2213 

 & 



normally 2 and 3. 

 extremes 2 to 4. 



