APPENDIX. 297 



black subquadrate spots, placed by threes in two triangles, 

 one on each side of the middle, the two inner spots of each 

 triangle sometimes confluent ; scutel black ; elytra, each 

 with nine spots, placed as follows ; one, large subquadrate ; 

 two small ; one large oblong ; two small ; two, the exterior 

 one elongated; one small, transverse ; beneath hl^cX'iyii. 

 yellowish-white. /^*vV' 



Length more than one-tenth of an inch. /^y f^ 



ORDER ORTHOPTERi, 1^ 



SPECTRUM, Stoll Lam. <Sfj \ v^r - p^ 



'^i. femoral inn. Apterous; intermediate thighs dila! 

 angulated, and with the posterior thighs armed with a spine 

 near the tip. 



Inhabits United States. 



Body greenish-brown, without any rudiments of he- 

 melytra ; head yellowish with three dilated fuscous vittee ; 

 antennx elongated, brown ; anterior thighs unarmed, 

 simple, bright green ; tibia dull gi-ecn, tip and tarsus 

 testaceous ; intermediate thighs dilated, angulated, pale 

 ochreous, annulated with brown, the inferior angulated 

 lines slightly serrated ; a prominent, piceous, acute, robust 

 spine beneath near the tip ; tibia greenish, slightly serrat- 

 ed on the inner side ; tarsus testaceous ; i^osterior thighs 

 brownish, ochreous, with a prominent, piceous, acute, ro- 

 bust spine near the tip, beneath. 



Length about three inches. 



A specimen occurred at the Falls of Niagara on a Hic- 

 kory tree, (Carya,) and I formerly obtained one near t)ic 

 Missouri river. Thej' are both males. 



