ORTHOPTERA OF NEW ENGLAND. 441 



Ajibltcorypha oblongifolia. De Geer. 

 Ohlong 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 gi'een in places. 



Amblycorypha rotundifolia. 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 Microcentrum. Scudder (1862). 



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

 cle of the vertex somewhat prominent, scarcely broader than first 

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

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

 thii-d 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 carinas quite sharp ; lobes of the side straight in 

 front, well rounded nnd curving forward behind, rounded beneath, 

 deeper than broad ; 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 Amblycorypha, especially the hind 

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



"This genus differs from Amblycorypha, to which it is most 

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

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



Microcentrum laukifolium. Linneus. 



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 

 affUiatum, but Stal pronounces it identical with the Linnean 



