ORTHOPTEEA OF NEW ENGLAND. 445 



XiPHiDiuM coNCiNNUM. Scudder. 



" Male, brownish green ; a dark reddish-brown dorsal streak 

 upon the head and prothorax, becoming faint towards the hind 

 border of the prothoi-ax, and narrowing anteriorly to the width of 

 the tubercle of the vertex, passing over this down the front to the 

 labrum, expanding broadly in the middle of the face ; legs brown- 

 ish green, tarsi dark brown, spines of tibiae tipped with black ; 

 abdominal appendages reddish brown ; wing covers pellucid, veins 

 grass green, except the heavy transverse vein of the sonorous 

 apparatus, which is brown ; wings pale brownish green, extending 

 a little beyond wing covers ; female having the same markings as 

 the male, except that all the nervures of the wing covers are 

 brown, and the wings are more dusky and are shorter than the 

 wing covers ; ovipositor reddish brown, a little curved, and very 

 pointed ; a much slenderer and more graceful form than X. vul- 

 gar e. 



" Length of body, .7 inch ; of wing covers, .84 inch ; of wings 

 beyond wing covers, .08 inch ; of hind femora, .6 inch ; of ovipos- 

 itor, .32 inch." 



XiPHiDiuM GLABERRiMUM. Burmcister. 



"The dorsal band here is bordered with black, as is also the 

 outer edge of the sonorous apparatus of the male ; antennae very 

 long; ovipositor slightly expanded in the middle." — Scudder. 



Genus Thtreonotus. Serville. 



Face rounded, slightly oblique. Eyes small and nearly globose. 

 Vertex with a blunt projection between the antennae, somewhat 

 excavated on the sides, and grooved above. Basal joint of the 

 antennae flattened. Pronotum truncate in front, more or less 

 rounded behind, and extending back over the first joint of the 

 abdomen, concealing the rudimentary wings and wing covers ; 

 flattened above and bent sharply down on the sides, forming an 

 abrupt, curved edge on each side of the back. Prosternum with 

 two short spines ; fore coxa with a long sharp spine on the out- 

 side. 



The fore and middle tibiae have two rows of six spines each on 

 the inside, and a row of three or four equidistant spines along the 

 outside. Hind femora and tibiae very long, and of equal length. 

 Ovipositor as long as the body, and straight. 



