21 



Amblycokypha oblongifolia. De Geer. 

 Oblong Leaf-winged Katydid. 

 Length, one inch and three- fourths to the end of the wing 

 covers, the wings extending one-fourth of an inch beyond. 



Wings and wing covers, grass green ; body, dull clay yellow, 

 tinged with green in places. 



. Amblycouypha uotundifolia. Scudder. 

 Round-winged Katydid. 

 Length, one inch and one-fourth to the end of the wing covers, 

 the wings extending about one-eighth of an inch beyond. Color, 

 grass green, sometimes tinged more or less with clay yellow. 



Genus Microcentkum. Scudder (1862). 



" Head oval, broader and stouter than in Amhlycoryplia ; tuber- 

 <;le of the vertex somewhat prominent, scarcely broader than first 

 joint of antennae, slightly furrowed ; eyes broadly oval, very 

 prominent ; first joint of antennae as broad as long ; second, one- 

 third as large, but also stout ; remainder long and slender, cylindri- 

 cal. Prothorax flat or very slightly concave, posterior quite convex ; 

 the sides nearly parallel, the length but little surpassing the 

 breadth ; lateral cariutK quite sharp ; lobes of the side straight in 

 front, well rounded and" curving forward behind, rounded beneath, 

 deeper than broad j wing covers with the triangular superior sur- 

 face extending backward farther than in Amblycorypha, and the 

 wing covers themselves not regularly rounded as there, but with 

 the inner border straighter till near the tip, the outer border 

 sloped off towards the tip, and the tip itself more pointed ; legs 

 slender, much shorter than in Amhlycoryplia^ especially the hind 

 legs ; ovipositor very shdit, strongly curved, and bluntly pointed. 



" This' genus differs from Amhlycoryplia, to whi<jh it is most 

 nearly allied, especially by the cut of the wing covers and the short- 

 ness of the hind legs and ovipositor." — Scudder. 



MiCUOCENTRUM LAURIFOI.IUM. LiuueUS. 



Length of wing covers, one inch and three-fourths ; of hind 

 femora, nine-tenths of an inch. Wings and wing covers, grass 

 green ; body, yellowish green, lighter beneath. Front of protho- 

 rax with a very small central tooth. 



Scudder described this species under the name of Microcentrum 

 affiliatum, but Sttil pronounces it identical with the Linnean 



