SUBFAMILY I. PHANEROPTERINJE. 477 



seven species and three races or varieties from North America. 

 Three species and two varieties fall within the scope of this work. 



KEY TO EASTEKN SPECIES OF AMBLYCOBYPHA. 



a. Tegmina oblong-elliptical, of subequal width throughout, the wings 

 distinctly protruding beyond their tips (Fig. 157, a); metasternal 

 lobe each side longer than broad, its hind margin narrowly rounded 

 or acute; humeral sinus deep, distinct. 



I). Larger, tegmina always more than 30 mm. in length; hind femora 

 not surpassing tips of tegmina, distinctly shorter in male; apex 

 of subgenital plate of male with a deep V-shaped notch, 

 c. Stridulating area of male tegmina larger, much exceeding that 

 of pronotal disk; ovipositor more evenly and regularly curved, 

 more strongly serrate (Fig. 157, c) ; lateral carinse evident 

 but rounded, often obsolete on apical fourth or more of pro- 

 notum. 218. OBLONGIFOLIA. 



cc. Stridulating field of male tegmina smaller, but little greater 

 than that of pronotal disk; ovipositor less evenly and regu- 

 larly curved, more finely serrate. 



d. Lateral carinse in front of middle of pronotum rounded into 

 the lateral lobes; Stridulating vein of male proportionally 

 narrower; ovipositor shorter, when compared with caudal 

 femora weaker (Fig. 157, d.} 218a. FLORID-ANA. 



dd. Lateral carinse of pronotum distinct and continuous through- 

 out; Stridulating vein of male broader; ovipositor longer, 

 heavier (Fig. 157, e.) 218b. CARINATA. 



l)b. Smaller, tegmina not over 28 mm. in length; hind femora sur- 

 passing tips of tegmina in both sexes; apex of subgenital plate 

 of male subtruncate, not or feebly notched. 219. UHLERI. 



aa. Tegmina ovate, distinctly broader at middle, the wings but slightly 

 surpassing their tips (Fig. 160) ; metasternal lobe each side broader 

 than long, its hind margin subtruncate; humeral sinus shallow or 

 subobsolete. 220. KOTUNDIFOLIA. 



218. AMBLYCORYPHA OBLONGIFOLIA (DeGeer), 1773, 446. Oblong-winged 

 Katydid. 



Size large for the genus; form robust. General color a bright pea- 

 green, the shrilling organ of male brownish, with a heavy green cross-vein; 

 abdomen and usually the fore and middle femora, yellowish or brownish- 

 green; hind femora, often brownish-yellow. Disk of pronotum with sides 

 distinctly divergent on basal two-thirds, subparallel with lateral carinse 

 less distinct on apical third; humeral sinus well impressed; hind margin 

 of lateral lobes broadly rounded. Tegmina elongate-elliptical, about 3.3 

 times as long as wide. Wings in repose surpassing tegmina 6 or more 

 mm. Hind femora very slender, usually scarcely reaching tip of tegmina, 

 female, distinctly shorter, male, their inner lower carina armed with six 

 to 12 rather strong teeth. Length of body, $, 2123, of 9. 2225; of 

 pronotum, $, 6 6.5. $,7; of tegmina, $, 36 38, $, 35 37; of posterior 

 femora, $ and $, 30 31; of ovipositor, 11.5 13 mm. Width of tegmina, 

 1112 mm. (Fig. 158.) 



