310 ORTHOPTERA OF NOVA SCOTIA. PIERS. 



inserted in the edges of leaves; and for such use the ovipositor 

 is broad, curved and obtuse at the apex.— Only one genus, 

 Scudderia, is represented in Nova Scotia, it being distinguished 

 by having the wing-covers of nearly equal breadth throughout, 

 and by the fastigium of the vertex being no broader than 

 the first antennal joint. 



Group Scudderiae.* 



Key to Nova Scotian Species of Scudderia (males). 



Note. — The upper anal appendage of the male must be carefully 

 examined with a lens in order to identify the species, the female being extreme- 

 ly difficult to separate, but, fortunately for the beginner, the latter is much 

 less often met with. The chief member used for identification, is what is 

 called the supra-anal spine of the male, a produced pistillate process oh the 

 upper part of the last abdominal segment. There is also a long sub-anal 

 spine which curves upward past the end of the supra-anal process, but it is 

 not used for diagnostic purposes. 



Last abdominal segment with a median produced pistillate process on its 

 dorsal side (supra-anal spine), this process forked at its apex, with no 

 median projection in the concavity of the fork, 

 a. Forked branches of supra-anal spine lobate; these lobes or lateral processes 

 bearing small vertical longitudinal flanges or keels along their lower 

 surface; notch of supra-anal spine shallow and acute (V-shaped). 

 b. Lobes (or lateral processes) of forked part of supra-anal spine dis- 

 tinctly tapering toward their ends when viewed from above; wing- 

 covers relatively broad and short, their length about 3 times their 



greatest width 20. pistillata, p. 312. 



bb. Lobes of forked part of supra-anal spine sub-equal in uidlh when 

 viewed from above; wing-covers proportionately narrower, their 

 length about 43^ times their greatest width in male, and about 



4H times in female 21. curvicauda borealis, p. 317. 



aa. Forked branches of supra-anal spine lobate; these lobes or lateral pro- 

 cesses not bearing longitudinal flanges along their lower surface, and not 

 much longer than broad; they are decidedly swollen and broadest at the 

 basal part (that is the portion opposite to the extreme depth of the 

 U) when viewed from above; notch of supra-anal spiiie deep and rounded 

 (U-shaped); wing-covers about 4J^ times their greatest width in male, 

 and about 45^ times in female. 22. furcata furcala, p. S20. 



Note. — Typical *S'. Curvicauda curvicauda differs from the race borealis 

 in being larger in size, the wing-covers being decidedly longer (33-37 mm.) 

 as well as the hind femora (25-29.5 mm.). It occurs from Maine south- 

 ward but has not yet been found in Nova Scotia. 



*See Scudder (S. H.), "The Orthopteran Group Soudderiffi," Pr.<c. Amer. Acad. Arts 

 and Sc, vol. S'?, Bist., 1898, pp. 271-290 and 1 plate, which fullv describes all species then 

 kmwn: and also the more recent revision by Rehn (f. A. G.) and Hehard (M.'), "Studies in 

 A-n!rican Tcttitsnniidae: S/nopsis of Spfcies of Genus Scudderia," Trans. Am. Ent. Soc, vol. 

 41), 1914, pp. 271-.3U, with 3 ol^tes of anal appendants, etc. Studonts should bo vcrv cautious 

 in accepting namas used for spscies of Scu-t'lerii previous to the appearance of Scudder's paper 

 of 1898, a-s the nomenclature had formerly bean mist lamentably mixed up. 



